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Liu, Hui, Hanxing Xue, and Hui Lu. "A Sensitive File Abnormal Access Detection Method Based on Application Classification." Security and Communication Networks 2021 (March 13, 2021): 1–7. http://dx.doi.org/10.1155/2021/6684456.
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As the access control mode of notepad files cannot meet the requirements of risk control for sensitive file hierarchical access, this paper proposes an application classification-based detection method for abnormal access to sensitive files. The application classification and file classification, access control policy mapping, and basic and preset policy detection are designed. Combining the operating system’s identification control of different applications at runtime, we monitor the abnormal access of sensitive files by hierarchical applications. The cross-access experiment of different levels of application to different sensitive files verified the effectiveness and security of hierarchical access control strategy and sensitive file abnormal access detection and reduced the risk of disclosure of sensitive files.
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Chapman, Stephen K. "The Development of Remote Teaching Aids." Microscopy and Microanalysis 7, S2 (2001): 802–3. http://dx.doi.org/10.1017/s1431927600030087.
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For many years the means of communicating electron microscopy techniques had been through either the spoken or the written word. with the advent of the computer and in particular the notebook computer more exotic methods of information presentation were made available. Now with the compact disk or the DVD, with their ability to store very large quantities of data, even more new avenues have been opened up for trainers.There are a number of programs by small organisations, like QM Slide Show and EZ Slide, that enable the trainer to take the simple approach to presentation preparation. Using a Windows Notepad interface or similar the trainer gathers bitmap files in a simple sequence, referencing the file source to activate each part of the presentation. This type of presentation is extremely flexible, so much so that the trainer, with a large selection of bitmap files and a good filing system, may develop a completely new or modified presentation in just a few minutes.
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Polotai, O., O. Belej, and N. Maltseva. "PHYSICAL CONTENT OF COMPUTER STEGANOGRAPHY." Bulletin of Lviv State University of Life Safety 23 (June 30, 2021): 27–32. http://dx.doi.org/10.32447/20784643.23.2021.04.
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Introduction. The development of computer technology has given a new impetus to the use of computer steganography. However, it is important to understand the physical content of this type of steganography.Purpose. The work aims to describe the practical use and physical content of the phenomenon of computer steganography, the results of the study on the hiding of files in the stegocontainer.Results. Describes the main ns currently computer steganography methods are actively used to solve the following tasks: Protection of confidential information from unauthorized access, overcoming monitoring and management of net-work resources, software camouflage, copyright protection, which is manifested in the use of digital watermarks, is one of the most promising areas of computer steganography. Among the methods of hiding information in images, the most common is the category of algorithms using the lower bits of the image data. They are considered in this paper. These algorithms are based on the fact that in some file formats, the lower bits of the values, although present in the file, but do not affect a person's perception of sound or image. The steganographic software S-Tools was chosen for the study. We created two test monotonous images with the size of 50 × 50 pixels in 24-bit bmp format to analyze the peculiarities of the placement of stego-data in container files. We chose black and white images for the study. A text file was hidden in each of the images, after which the reverse action was performed - extracting the file. As a result of hiding, two stego files were obtained. The paper compared the binary content of the original images and files containing private data. For comparison, the binary content of the black square image and the contents of the stegocontainer with a latent text file are given. Note that the contents of the container and the stego file are only partially listed, but the addresses of the memory cells have selected accordingly. The right column shows the contents of the memory cells in hexadecimal format. The bytes that display the colour of the square are set to "00" because the original image contains only black. We noted that the contents of the cells responsible for the image changed after hiding additional data (this reflected by cells with values of "01"). The paper also describes the procedure for hiding a group of different types of files. During the study, we found that the image file (1920 × 1080 pixels) with a volume of 6,220,854 bytes can hide 777,584 bytes of information.Conclusion. When using steganography, the program uses some algorithms that hide confidential data among the contents of the container: bits of the hidden file replace the bits of the original file at random positions. Thus, the size of the source file and the container file (containing the attached information) is the same, even if you hide a different number of files or different amounts of data.
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Purnamasari, Intan, and Oman Komarudin. "Optimalisasi Manajemen Penerimaan & Penyimpanan Dokumen Fax Menggunakan Algoritma Greedy." Jurnal Teknologi Informasi dan Ilmu Komputer 6, no. 6 (2019): 625. http://dx.doi.org/10.25126/jtiik.201966976.
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<p class="SUBAB1">Mesin <em>fax</em> pada dasarnya mutlak diperlukan bagi sebuah instansi maupun organisasi tertentu. Namun kesulitan yang dihadapi oleh beberapa perusahaan kecil maupun menengah adalah tidak dapat mengalokasikan dana bagi pembelian mesin <em>fax</em>, perawatan, dan perlengkapan komputer sebagai media penunjang. Bagi perusahaan yang telah memiliki mesin <em>fax</em> pun, manajemen dokumen yang diterima melalui<em> fax</em> menjadi kesulitan tersendiri, dari mulai perawatan mesin <em>fax</em>, pemeriksaan ketersediaan kertas dan <em>cartridge</em> tinta, pemeriksaan dokumen yang diterima, serta penyimpanan arsip <em>fax</em> yang diterima. Metodologi penelitian yang akan digunakan pada penelitian ini adalah metode rakayasa perangkat lunak atau <em>Software Development Life Cyle</em> (SDLC) dengan model pemrograman cepat atau <em>Extreme Programming</em>. Desain pemodelan aplikasi menggunakan UML (<em>Unified Modelling Language</em>) yang diimplementasikan menggunakan bahasa pemrograman PHP sebagai algoritma program dan bahasa pemrograman HTML untuk desain tampilan aplikasi dengan <em>tools</em> aplikasi Notepad++. Hasil implementasi dari aplikasi ini adalah yang semula awalnya penerimaan dokumen <em>fax</em> dengan menggunakan mesin <em>fax</em> harus tercetak dan membutuhkan media kertas sebanyak 100% mengingat mesin <em>fax</em> hanya dapat menampilkan pesan dan dapat dibaca setelah tercetak namun setelah menggunakan apliksi <em>digifax</em> ternyata dapat menghemat penggunaan kertas sebanyak 24,6% sehingga penggunaan kertas menurun menjadi 78,6%. Hal ini karena dengan aplikasi <em>digifax</em> dokumen atau <em>file fax</em> yang diterima dapat disimpan dan dapat dicetak (<em>print</em>) maupun diatur sesuai kebutuhan pengguna.</p><p class="SUBAB1"> </p><p class="SUBAB1"><em><strong>Abstract</strong></em></p><p class="Normal7"><em>Fax machine basically is absolutely necessary for a particular institution or organization. However, the difficulties faced by some small and medium enterprises are not able to allocate funds for the purchase of a fax machine, maintenance, and computer equipment as supporting media. For companies that already have a fax machine too, management documents received via fax into its own difficulties, ranging from fax machine maintenance, checking the availability of paper and ink cartridges, examination of documents received, and the received fax archival storage. The research methodology that will be used in research is a method of software engineering or Software Development Life Cyle (SDLC) with fast programming model or Extreme Programming. Design application modeling using UML (Unified Modeling Language) which is implemented using the PHP programming language as the program algorithm and HTML programming language for interface design tool applications with Notepad + + applications.</em><em> </em><em>The results of</em><em> the implementation of this application is that the original fax document acceptance initially using fax machines need to be printed and paper media as much as 100% given the fax machine can only display a message and can be read as printed digifax but after using the same practice was able to save the use of paper as much as 24, 6%, so the use of paper decreased to 78.6%. This is because the application digifax documents or files received faxes can be stored and can be printed (print) and arranged according to user needs.</em><em></em></p><p class="SUBAB1"><em><strong><br /></strong></em></p><p class="SUBAB1"><strong><br /></strong></p>
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Saberi, Eshagh Ali, Narges Farhad Mollashahi, and Forugh Farahi. "Canal transportation caused by one single-file and two multiple-file rotary systems: A comparative study using cone-beam computed tomography." Giornale Italiano di Endodonzia 32, no. 2 (2019): 57–62. http://dx.doi.org/10.4081/j.gien.2018.3.
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Aim: This ex-vivo study aimed to compare canal transportation in mesio-buccal canal of mandibular first molars prepared with Mtwo and Revo-S multi-file and Neoniti single-file nickel[18TD$DIF]—titanium (Ni—Ti) rotary systems using cone-beam computed tomography (CBCT). Methodology: CBCTscans were obtained from 60 extracted mandibular first molars and the teeth were randomly divided into three groups. Mesio-buccal canal of mesial root was prepared with Revo-S, Neoniti or Mtwo rotary systems according to the instructions of the manufacturers. Postoperative CBCT scans were also obtained. A single operator performed canal preparations while another operator blinded to the group allocation of teeth did the measurements. Data were analyzed using SPSS 20. The mean and standard deviation (SD) of the amount of canal transportation were calculated and compared between the groups using the Friedman test ([19TD$DIF]P 0.05). Results: No significant difference was noted in canal transportation among the groups in the middle and apical third ([20TD$DIF]P > 0.05). The rotary single-file instrument caused significantly greater canal transportation in the coronal third. Conclusion: No significant difference exists among different rotary systems in the amount of canal transportation caused in the middle and apical third of the mesio-buccal canal in mandibular first molars. Although all rotary files caused some degrees of canal transportation, the rotary single-file instrument caused significantly greater canal transportation than the multiple-file sequences in the coronal third.
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Deckers, Hellen Pinto Ferreira, Francisco Carlos Gomes, Larissa Pereira Barbosa Siva, Marília Gabriela Brandão Gonçalves, and Marcelo Bastos Cordeiro. "DEVELOPMENT OF SOFTWARE TO DETERMINE PRESSURES IN MULTICELULARSILOS WITH CONCENTRIC AND ECCENTRIC DISCHARGE." Theoretical and Applied Engineering 4, no. 2 (2020): 19–31. http://dx.doi.org/10.31422/taae.v4i2.24.
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A computer program for determining the pressures, horizontal and friction, in prismatic slender silos, with square section, eccentric hopper and mass flow, international codes taken as basis were: AS 3774 (1996), DIN 1055-6 (2005) and BS EN 1991-4 (2006) and the theories proposed by Safarian (1969) and Walker (1966). The development application was made possible by the development of a computational algorithm in programming “Borland Delphi”. The program was carried out for five silos projects with truncated pyramid form hopper considering the following eccentricities: 25%, 30%, 35% and 43%, as well as a concentric model for comparison. The computer program allowed SILOEXCENTRIC easily and quickly be applied to slender prismatic geometry of silos with concentric and eccentric hoppers. The results demonstrated the efficiency of the computer program for the proposed objectives So SILOEXCENTRIC results in pressures that are stored in files in “Notepad” format that may be accessed are generated. Besides files, various data are presented in graphical form, facilitating the assessment of horizontal pressures and friction, which proved adequate to international standards, considering the limit states.
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Mohamed, Mohamed, and James C. L. Chow. "Acomprehensive computer database for medical physics on-call program." Journal of Radiotherapy in Practice 19, no. 1 (2019): 10–14. http://dx.doi.org/10.1017/s1460396919000244.
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AbstractPurpose: A comprehensive and robust computer database was built to record and analyse the medical physics on-call data in emergency radiotherapy. The probability distributions of the on-call events varying with day and week were studied.Materials and methods: Variables of medical physics on-call events such as date and time of the event, number of event per day/week/month, treatment site of the event and identity of the on-call physicist were input to a programmed Excel file. The Excel file was linked to the MATLAB platform for data transfer and analysis. The total number of on-call events per day in a week and per month in a year were calculated based on the physics on-call data in 2010–18. In addition, probability distributions of on-call events varying with days in a week (Monday–Sunday) and months (January–December) in a year were determined.Results: For the total number of medical physics on-call events per week in 2010–18, it was found that the number was similar from Sundays to Thursdays but increased significantly on Fridays before the weekend. The total number of events in a year showed that the physics on-call events increased gradually from January up to March, then decreased in April and slowly increased until another peak in September. The number of events decreased in October from September, and increased again to reach another peak in December. It should be noted that March, September and December are months close to Easter, Labour Day and Christmas, when radiation staff usually take long holidays.Conclusions: A database to record and analyse the medical physics on-call data was created. Different variables such as the number of events per week and per year could be plotted. This roster could consider the statistical results to prepare a schedule with better balance of workload compared with scheduling it randomly. Moreover, the emergency radiotherapy team could use the analysed results to enhance their budget/resource allocation and strategic planning.
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Yezhova, Olga V., Kalina L. Pashkevich, and Denys V. Gryn. "DEVELOPMENT OF TECHNOLOGY EDUCATION STUDENTS’ ICT COMPETENCE WHILE TEACHING COMPUTER-AIDED FASHION DESIGN." Information Technologies and Learning Tools 73, no. 5 (2019): 15–27. http://dx.doi.org/10.33407/itlt.v73i5.2547.
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The present paper deals with the problem of CAD (computer-aided design) competence formation of would-be teachers of technology and vocational school teachers. It is noted that for fashion industry to develop, it is necessary that its professionals should have both the knowledge of basic communication technologies and foundations of using CAD. ICT competence is necessary for trainee teachers of technology and vocational education specialists both for their educational activity and for successful creation of outfit models using computer techniques. The aim of the research lies in grounding the list of software equipment to be used by trainee teachers of technology and vocational school teachers to provide effective learning of CAD in professional sphere. The introduction to professional-oriented software is realized in higher education institutions of Ukraine during the course of “Basics of computer aided design”, after a preparatory course “Information Technologies” Information technologies are used in fashion industry for creating new models, equipment management, and for maintaining the life cycle of outfits. Hereby presented is a systemized list of computer software tools for professional purposes to be used in automated workstation of the designer: software tools for correct and safe system component management; software for file creation and information sharing; CAD-subsystems. The content of the course “Basics of computer aided design” have been described. Practical approbation has proved effectiveness of the developed syllabus along with the methodological support of the course “Basics of computer-aided design”. The results of the investigation are important for grounding the content of study for trainee teachers of technology and specialists of vocational education, as well as for professionals in fashion industry.
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Borysova, L., P. Bilenchuk, M. Malii, and V. Vynohradova. "EXAMINATION AS A MEANS OF ESTABLISHING THE FACTS AND CIRCUMSTANCES OF COMMISSION OF TRANSNATIONAL COMPUTER CRIMES." Criminalistics and Forensics, no. 65 (May 18, 2020): 230–39. http://dx.doi.org/10.33994/kndise.2020.65.22.
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The article is noted that investigators are not able to track all technological changes in the field of information technology and to study the traces of this type of crime, special attention is paid to the use of examination of computer systems and computer media (order of the Ministry of Justice of Ukraine dated 08.10.98, No. 53/5). During the examination, it is advisable to solve the following problems: – identification, that is the diagnosis of system processes and system behavior; system identification; multivariate analysis and reconstruction of the circumstances of the event place (by methods of mathematical analysis and computer simulation); diagnostics of the functional purpose of individual elements of a computer system, an intelligent hacking system; identification of the author of the computer text (they seem more important for the investigation and the court); – non-identification, that is determination of the structure and functions of telecommunication networks and e-mail facilities; reconstruction and prediction of system behavior; determination of the reliability and resilience of computer systems; classifying information as software; classifying specific programs as harmful; definition of semantics and grammar of controversial texts; diagnostics and classification of printers, faxes, copy machines according to the text that was made from them. It is advisable in the expert’s conclusion to display the facts of fixing information traces about the actions of malicious programs and search for seized files, parts of files that were specially removed at the beginning of the review or accidentally during the review; results of verification of system, protection, and application logs using documents that govern the rules for archiving logs; audit results (operators, privileges, objects). To the conclusion, it is necessary to attach reports that were generated by the corresponding software, copies on machine media that were obtained during physical fixation. In the case of using a computer document as evidence, there is a need to specify: the means of collecting and processing information; type of system used; control tools that are built into the system for guaranteed detection and correction of errors, determining the level of professional training of individuals in the field of programming and working with computer equipment.
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Anitha, G., V. Vijayakumari, and S. Thangavelu. "A Comprehensive Study and Analysis of LEACH and HEED Routing Protocols for Wireless Sensor Networks – With Suggestion for Improvements." Indonesian Journal of Electrical Engineering and Computer Science 9, no. 3 (2018): 778. http://dx.doi.org/10.11591/ijeecs.v9.i3.pp778-783.
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<p>The main interesting aspect of the digital era is the widely spread ease of communication from one end of the world to the other end of the world. There is a revolution in communication, digitalization, globalization, video calling, wireless data transfer and this is possible due to networking. Initially computer networks is the data sharing where data such as documents, file, reports, presentation files, videos, images etc can be shared within a local network or remotely connected networks. Traditional data networking is to empower end-to-end information transfer. The data in such networks are carried across point-to-point links and the intermediate nodes just forward the packets, where the payload of the packets is not modified. Traditional LANs need wires, which may be difficult to set up in some situations.</p><p>It is very much understandable and clearly visible that wired communication is being completely overtaken by wireless technologies in the recent past. Wireless LANs, by its very nature, empowers with increased mobility and flexibility. Wi-Fi devices get connected to the internet through WLAN and access points. 2.4 GHz and 5 GHz ISM bands are used by Wi-Fi. Also, it is to be understood that, a wireless adhoc network is distributed in its nature. It is also to be noted that, the adhoc nature makes these network to rely on any of the pre-existing infrastructure. The data forwarding shall happen from the nodes very much dynamically based on the connectivity and the routing algorithm used. </p>
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Party, Eliot, Catalin Borcea, Philippe Dessagne, et al. "Neutron inelastic scattering of 232Th: measurements and beyond." EPJ Web of Conferences 211 (2019): 03005. http://dx.doi.org/10.1051/epjconf/201921103005.
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Gamma production cross sections have been obtained for 81 transitions in 232Th from (n,n’γ), 11 in 231Th from (n,2nγ) and 7 in 230Th from (n,3nγ) reactions using prompt gamma spectroscopy. Incident neutron energies were determined using the neutron time-of-flight technique. Sources of uncertainty have been examined and their correlations have been computed. Total uncertainty on cross sections ranges from 4 to 20%. Obtained cross sections are in agreement with prior experiments, but are not well reproduced by the TALYS 1.8 reaction code using default parameters. During analysis, discrepancies between our findings and the Evaluated Nuclear Structure Data File (ENSDF) were noted. Future work related to the present experiment includes: improving theoretical models, quantifying the influence of the 232Th inelastic neutron cross section on reactor core parameters, and conducting additional measurements.
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McLendon, Roger E., Jerry W. Oakes, Ralph E. Heinz, Andrew E. Yeates, and Peter C. Burger. "Adipose Tissue in the Filum Terminale: A Computed Tomographic Finding That May Indicate Tethering of the Spinal Cord." Neurosurgery 22, no. 5 (1988): 873–76. http://dx.doi.org/10.1227/00006123-198805000-00010.
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Abstract Adipose tissue in the filum terminale is frequently associated with tethering of the spinal cord in patients with spina bifida occulta (3, 8). We recently saw a patient with low back pain and no spina bifida occulta, in whom adipose tissue was noted in the area of the filum on an unenhanced computed tomographic (CT) scan. The patient had a tethered cord. This case suggested that, when CT scanning is done as the first imaging study in the evaluation of low back pain, fatty tissue in the area of the filum may be an indicator for tethering of the spinal cord. The present study was undertaken to determine the validity of using CT scan-detectable filal fat in the identification of possible tethered spinal cords among a group of patients experiencing low back pain. The presence of fat in the fila of 12 patients with the radiologically and histologically tethered cord syndrome was evaluated and the fila of 47 autopsied patients whose clinical history showed no back pain were examined histologically. There were accumulations of adipose tissue in the fila of 11 of the 12 (91%) patients with the tethered cord syndrome and in the fila of 9 of the 47 patients (17%) in the autopsy series. Of the 9 autopsy patients with fat in their fila, however only 3 patients (6%) exhibited collections of adipose tissue in the CT detection range (2 mm). These results demonstrate that, although CT scan-detectable adipose tissue can be found in the filum of an occasional patient without tethered cord, CT detectable fat in the filum of a patient with low back pain should prompt an evaluation for a tethered spinal cord. CT scanning has potential as a noninvasive tool in such a work-up.
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Gusmanova, F. R., and G. A. Abdulkarimova. "OVERVIEW OF THE BLOCK ENCRYPTION DEVELOPMENT." BULLETIN Series of Physics & Mathematical Sciences 69, no. 1 (2020): 295–301. http://dx.doi.org/10.51889/2020-1.1728-7901.52.
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In the conditions of universal Informatization, the problem of information security and information protection has significantly worsened. This work provides an overview of the block encryption development. Block cipher - a kind of symmetric cipher. A feature of the block cipher is the processing of a block of several bytes in one iteration. Block cryptosystems break the message text into separate blocks and then convert these blocks using a key. Basic information related to block encryption is presented, and the main analysis options are shown. The possibility of students' research work on this topic was noted, and the review of international competitions on block ciphers research was performed. A diagram is shown that can be applied in electronics, and a replacement table is generated and painted for programming. In this case, both of these approaches are equivalent, meaning that an encrypted file on a computer is decrypted on an electronic device and vice versa.
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Kelch, Lois W., and Edwin E. Wagner. "Maximized Split-Half Reliabilities and Distributional Characteristics for Harris-Lingoes Subscales with Few Items: A Reevaluation for the MMPI-2." Perceptual and Motor Skills 75, no. 3 (1992): 847–50. http://dx.doi.org/10.2466/pms.1992.75.3.847.
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100 MMPI-2 protocols were obtained from the files of an outpatient clinic. Distributions of all possible split-half combinations were computed for selected Harris-Lingoes subscales with few items. As expected, max r reliability estimates were significantly greater than alpha estimates and distributions of correlations were negatively skewed. Inspection of the distributions suggested that the Amorality scale contains an ambiguous item which does not appear to belong in this grouping. Serious problems were noted with the Hy5 subscale. Alpha reliabilities were comparable to previously reported estimates, and max r reliability estimates closely resembled reported test-retest estimates.
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Kong, Ling Bo, Xiao Xue Xing, and Xian Zhang. "The Original Carbon-Copper Compound as a New Source of Electric Power." Applied Mechanics and Materials 668-669 (October 2014): 87–90. http://dx.doi.org/10.4028/www.scientific.net/amm.668-669.87.
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The original method of electrochemical sedimentation of ultra-dispersed graphitefrom the colloid mixture on the polystalline copper cathode is designed.An interfacetransition region of several microns thickness is formed. Formation of electric potentialbetween the copper substrate and the graphite layer is observed. A mechanism of this effect is studied using the computer quantum mechanics simulation. A high level of precision cannot be maintained over large areas, so that large-area devices are currently difficult to fabricate. By contrast, we have noted that the dielectric elastomer actuators themselves set the gap, so that the gap can be formed in only a single step, film deposition on a flat surface. By using monolithic polymer substrates, one should be able to make large-area arrays of dielectric elastomer actuators.
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Bourne, N. K. "Impact on alumina. II. Linking the mesoscale to the continuum." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 462, no. 2075 (2006): 3213–31. http://dx.doi.org/10.1098/rspa.2006.1707.
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The response of polycrystalline ceramics to shock loading has been studied for the past 30 years. Yet formulation of continuum models describing their response has been only partially successful. In uniaxial-strain loading, failure mechanisms have been noted that proceed behind the shock front from the impact face. It has become clear that operating mechanisms have not been completely described, and so the technique of mesoscale simulation has been applied to understand composite behaviour at the grain scale to explain processes operating at the continuum. The aluminas chosen for the study have been experimentally investigated by using the plate impact shock loading. The microstructure has been investigated using transmission electron microscopy. This microstructure has been converted into an input file for computer simulation of the experimental impacts assuming that each phase has known properties. A view of the mesoscale response is presented and the operating mechanisms are highlighted. A connection with the macroscopic response is made to illustrate the features measured at the continuum that originate at the mesoscale.
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Zhang, Fei, Zhenxia Liu, Zhengang Liu, and Weinan Diao. "Experimental Study of Sand Particle Deposition on a Film-Cooled Turbine Blade at Different Gas Temperatures and Angles of Attack." Energies 13, no. 4 (2020): 811. http://dx.doi.org/10.3390/en13040811.
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Particle deposition tests were conducted in a turbine deposition facility with an internally staged single-tube combustor to investigate the individual effect of the gas temperature and angle of attack. Sand particles were seeded to the combustor and deposited on a turbine blade with film-cooling holes at temperatures representative of modern engines. Fuel-air ratios were varied from 0.022 to 0.037 to achieve a gas temperature between 1272 and 1668 K. Results show that capture efficiency increased with increasing gas temperature. A dramatic increase in capture efficiency was noted when gas temperature exceeded the threshold. The deposition formed mostly downstream of the film-cooling holes on the pressure surface, while it concentrated on the suction surface at the trailing edge. Deposition tests at angles of attack between 10° and 40° presented changes in both deposition mass and distribution. The capture efficiency increased with the increase in the angle of attack, and simultaneously the growth rate slowed down. On the blade pressure surface, sand deposition was distributed mainly downstream of the film-cooling holes near the trailing edge in the case of the small angle of attack, while it concentrated on the region around the film-cooling holes near the leading edge, resulting in the partial blockage of holes, in the case of the large angle of attack.
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Mayer, Robert. "The Complexity Assessment Method of Logical Reasonings." Scientific Research and Development. Socio-Humanitarian Research and Technology 9, no. 3 (2020): 35–40. http://dx.doi.org/10.12737/2587-912x-2020-35-40.
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The development of methods for assessing the various didactic characteristics of teaching texts and teacher messages is an urgent problem of modern teaching theory. Its solution allows to rank texts (descriptions, proofs, explanations, etc.) according to the degree of complexity, and this helps to optimize the learning process and increase the objectivity of assessing students' knowledge. In general, educational texts contain a descriptive-narrative and logical component; the share of the latter can be defined as the ratio of informative content of logical reasonings to the overall informative content of the text. The complexity (informativity) of the text can be found as a sum of the com-plexities of its constituent scientific terms and ordinary words. The semantic complexity of the term relative to the Z0 thesaurus is equal to the number of words that need to be spoken to explain the term to a student with the thesaurus Z0. It should be noted that each new mention of the term reduces its contribution to the overall complexity of the text. The proposed method for assessing the complexity of logical reasonings involves: 1) identifying all facts and logical rules used, the complexity of which exceeds the cho-sen level of knowledge; 2) expanding the text by adding all the statements necessary for conducting reasonings; 3) creation of text file text.txt containing verbal part of educa-tional text and verbally encoded formulas and figures; 4) creation of a dictionary (slo-var.txt file) containing the scientific terms used with indication of their level of com-plexity; 5) analysis of the text.txt file using the special computer program addressing to the dictionary which allows to determine the overall semantic complexity of the eva-luated text; 6) isolating logical reasonings from the text and determining their total complexity; 7) finding the share of logical reasoning in the text. The complexity of four text fragments was estimated, for which the share of logical reasonings and the average coefficient of information folding were calculated.
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Saberi, Eshaghali, Narges Farhad-Mollashahi, Shima Bijari, and Mohammad Daryaeian. "Comparative Evaluation of Root Canal Transportation by Three NiTi Single-File Systems in Curved Canals: A Cone Beam Computed Tomography Study." International Journal of Dentistry 2018 (2018): 1–6. http://dx.doi.org/10.1155/2018/4151692.
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Introduction. This study is aimed at evaluating root canal transportation in the mesiobuccal canal of mandibular first molars prepared with One Shape, Reciproc, and M-One nickel titanium (NiTi) single-file rotary systems using cone beam computed tomography (CBCT). Materials and Methods. In this ex vivo study, CBCT scans of 45 extracted human mandibular first molars with 20–40° curvature were obtained. The teeth were randomly divided into three groups (n=15) for preparation of the mesiobuccal canal with One Shape, Reciproc, and M-One rotary systems according to the manufacturers’ instructions. CBCT scans were obtained again after canal preparation. Changes caused by preparation in the coronal, middle, and apical thirds were determined on CBCT scans and analyzed using the Kruskal–Wallis test at P≤0.05 level of significance. Results. No significant difference was noted in the amount of canal transportation among the three groups (P>0.05). M-One caused greater transportation in the apical third compared with Reciproc and One Shape, and One Shape caused greater transportation in the coronal third compared with other groups, although its magnitude was less than 0.3 mm. Conclusion. Reciproc, One Shape, and M-One are not significantly different in terms of canal transportation.
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Sijbrandij, S. J., K. F. Russell, R. C. Thomson, and M. K. Miller. "Digital Field Ion Microscopy." Microscopy and Microanalysis 4, S2 (1998): 88–89. http://dx.doi.org/10.1017/s1431927600020560.
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Due to environmental concerns, there is a trend to avoid the use of chemicals needed to develop negatives and to process photographic paper, and to use digital technologies instead. Digital technology also offers the advantages that it is convenient, as it enables quick access to the endresult, allows image storage and processing on computer, allows rapid hard copy output, and simplifies electronic publishing. Recently significant improvements have been made to the performance and cost of camera-sensors and printers. In this paper, field ion images recorded with two digital cameras of different resolution are compared to images recorded on standard 35 mm negative film. It should be noted that field ion images exhibit low light intensity and high contrast.Field ion images were recorded from a standard microchannel plate and a phosphor screen and had acceptance angles of ∼60°.
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Alanen, J., L. Keski-Nisula, J. Laurila, I. Suramo, C. G. Standertskjöld-Nordenstam, and M. Brommels. "Costs of plain-film radiography in a partially digitized radiology department." Acta Radiologica 39, no. 2 (1998): 200–207. http://dx.doi.org/10.1080/02841859809172179.
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Purpose: the aim of the study was to analyse the costs of computed radiography (CR) as part of a small picture archiving and communication system (mini-PACS), and to compare these costs with those of conventional analogue radiography using activity-based accounting (ABC) Material and Methods: the study was conducted at the Central Hospital of Vaasa where in 1993 the Radiology Department acquired a mini-PACS with a CR reader, a chest CR unit, and a CT unit as digital image processing modalities. of altogether 34140 plain-film examinations, 3/4 were made with CR and stored mostly on film, and 1/4 were made with conventional analogue radiography. the costs and activities of these two modes were analysed by means of the ABC method which identifies and allocates indirect costs in radiological procedures Results: the costs of CR imaging were 9% higher than those of conventional radiography. the costs of the chest CR unit were equal to those of conventional radiography. the difference was due to higher investment costs in digital image processing. the time gained from a reduction in the number of retakes did not shorten the time spent by patients in the examination room, and its effect on film costs was minimal Conclusion: in planning the step-by-step transition of conventional film-based analogue radiography to fully digitized radiography, it should be noted that films are still used in the transition period and that this is associated with higher costs than in the previous system of conventional analogue plain-film imaging
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Bishop, Paul D., Thomas Fultz, Lisa Smith, Ryan S. Klatte, Francis Loth, and Sean P. Lyden. "An Initial Effort to Create a Superficial Femoral Artery Ultrasound Phantom Using 3-Dimensional Printing." Journal for Vascular Ultrasound 44, no. 2 (2020): 69–73. http://dx.doi.org/10.1177/1544316720911490.
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Three-dimensional (3D) printing of anatomical structures has yielded valuable models for simulation, education, and surgical planning applications. Applications for 3D printing have continued to expand to include some ultrasound applications. The goal of this effort was to evaluate if a 3D printed model of a superficial femoral artery (SFA) would have realistic ultrasound characteristics. A computed tomography scan was 3D reconstructed and segmented using TeraRecon Aquarius Intuition software (TeraRecon, Foster City, California) to obtain an atherosclerotic SFA geometry. Both the lumen geometry and calcified plaque geometry of the SFA were exported as a stereolithographic (STL) file. The STL file was printed with An Object350 Connex 3D System using 2 different materials selected based on published elastic modulus data. VeroWhite was selected for the calcified plaque and TangoPlus Clear was selected for the artery wall. After printing, the SFA model was imaged in a water bath with a Phillips IU22 duplex ultrasound console and L12-9 ultrasound probe. Ultrasound imaging of the SFA model yielded grayscale views of artery geometry. Lumen geometry of the SFA model was similar to the actual artery geometry. Ultrasound was able to discern between the 3D print materials and visualize regions with stenosis. Suboptimal ultrasound parameters of echogenicity and wave velocity noted to differ from biological tissue. Total 3D print material cost was estimated at below $20. Although the 3D printed model did not have fully accurate ultrasound characteristics, it still provided realistic imaging. With further research, 3D printed models may offer a low-cost alternative for ultrasound phantoms.
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Slyvotskaya, O., and T. Saliy. "Effective modern software tools for the development of electronic teaching aids." Bulletin of the Innovative University of Eurasia 82, no. 2 (2021): 81–88. http://dx.doi.org/10.37788/2021-2/81-88.
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In the context of the transition to the updated content of education, the development and implementation of electronic learning tools in computer science is becoming more relevant than ever. The lack of e-learning tools, developed in full accordance with modern requirements, a variety of software tools and shells to create them, requiring a developer of different levels of training in the use of software, has necessitated a more detailed review and analysis of the problem of development and implementation in the educational process by teachers author's e-learning products. The article identifies the main advantages and disadvantages of some software tools for the development of electronic textbooks. The ArticulateStoryline program is singled out as one of the most effective modern software tools for the development of electronic textbooks in secondary schools. А сomparative analysis of software is carried out on a number of criteria: simplicity and usability, available in ready-made templates, the ability to work with layers, create test items, an opportunity to build ready graphics, video and sound files, the possibility of placing on a single slide multi-page text. The features of the Articulate Storyline program are presented in more detail. The possibility of using this software tool is noted, both by an ordinary user through the use of ready-made templates, and by a more advanced professional through the capabilities of the built-in JavaScript programming language. The program features are presented on the example of the development of an electronic textbook on computer science for the 4th grade. The result of the implementation of the capabilities of the software tool was the development of an electronic textbook, which reflects such features of Articulate Storyline as the use of a set of ready-made characters, the ZoomPicture function, the insertion of video files, a variety of interactive tasks organized through the use of Hotspot slides and SequenceDrag-and-Drop. The electronic textbook provides independent cognitive activity of students, increasing the level of their motivation in learning, ensuring self-control.
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Ali, Fateh, Yanren Hou, Muhammad Zahid, and Muhammad Afzal Rana. "Mathematical Analysis of Pseudoplastic Polymers during Reverse Roll-Coating." Polymers 12, no. 10 (2020): 2285. http://dx.doi.org/10.3390/polym12102285.
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This article presents a mathematical model and theoretical analysis of coating of a thin film of non-Newtonian polymers as they travel through a small space between two reverse-rotating rolls. The dimensionless forms of the governing equations are simplified with the help of the lubrication approximation theory (LAT). By using the perturbation technique, the analytical solutions for velocity, flow rate and pressure gradient were obtained. From an engineering point of view, some significant results such as thickness of the coated web, pressure distribution, separation points, separation force and power input were computed numerically. The effect of velocities ratio k and Weissenberg number We on these physical quantities is presented graphically; others are shown in tabular form. It is noted that the involved material parameters provide a mechanism to control the flow rate, pressure distribution, the thickness of coating, separation force and power input. Moreover, the separation point is shifted toward the nip region by increasing velocities ratio k.
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Unternaehrer, Julia, Rainer Grobholz, Andrew Janowczyk, and Inti Zlobec. "Current opinion, status and future development of digital pathology in Switzerland." Journal of Clinical Pathology 73, no. 6 (2019): 341–46. http://dx.doi.org/10.1136/jclinpath-2019-206155.
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AimsThe transition from analogue to digital pathology (DP) is underway in Switzerland. To assess relevant experiences of pathologists with DP and gauge their outlook towards a digital future, a national survey was conducted by the Swiss Digital Pathology Consortium. Similar surveys were conducted in other countries, enabling a meta-analysis of DP experiences.MethodsPathologists and residents were asked to complete a survey containing 12 questions. Results were compared with similar studies conducted in the United Kingdom, Sweden, Canada, and India.ResultsThe estimated response rate among practicing pathologists and trainees nationwide was 39.5%. Of these, 89% have experience with digital slides, mainly for education (61%) and primary diagnostics (20%). Further, 32% have worked with an image analysis programme and 26% use computer-based algorithms weekly. Interestingly, 66% would feel comfortable making a primary diagnosis digitally, while 10% would not. Most respondents believe more standards and regulations are necessary for the clinical employment of DP. Noted advantages include ease of access to slides and the resulting connectivity benefits, namely collaboration with experts across disciplines, off-site work, training purposes, and computational image analysis. Perceived disadvantages include implementation costs and issues associated with IT infrastructure and file formats.ConclusionThe survey results suggest that experiences and perspectives of Swiss pathologists concerning DP is comparable to that of the other reporting countries undergoing transitions to digital workflows. Although more standards and regulations are needed to ensure the safe usage of these technologies, pathologists in Switzerland appear welcoming of this new digital era.
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Onyshchenko, Nataliіa. "Training of Future Teachers by Means of Innovative Technologies in the Process of Studying Pedagogical Disciplines." Education and Pedagogical Sciences, no. 1 (176) (2021): 72–80. http://dx.doi.org/10.12958/2227-2747-2021-1(176)-72-80.
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The article reveals the features of training future teachers by means of innovative technologies in the process of studying pedagogical disciplines. The article describes innovative pedagogical technologies that are being intensively introduced in modern higher education institutions (distance learning technologies (most relevant in the context of the COVID-19 pandemic), a credit-modular system for organizing training, game, information and computer, interactive, multimedia, dialogue and communication, project technologies, technology of problem learning, etc.). It has been established that among the pedagogical technologies used in the study of pedagogical disciplines, multimedia technologies are very popular. It is emphasized that the training methodology, case method and portfolio method help the formation of communicative skills, the creation of a benevolent atmosphere of communication in practical and seminar lessons. It has been determined that the design technology provides for a systematic and consistent modelling of solutions to problem situations that require research efforts from the participants in the educational process aimed at research and design of the best ways to create projects, their defence and analysis of the results. It has been noted that Internet projects and cloud technologies (Google Apps, Office 365 services, file storage, electronic literature, web applications and distance learning support systems Moodle and Blackboard) are relevant in the study of pedagogical disciplines, which are aimed at increasing the level of students’ speech skills and help to learn to receive a significant amount of information.
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Chevuturu, Madhavi. "Assessment of Prevalence and Risk Factors of Dry Eye Disease among Study Group." Asian Journal of Medical Research 9, no. 3 (2020): 1–4. http://dx.doi.org/10.47009/ajmr.2020.9.3.ot1.
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Background: Dry eye is a multifactorial disease of the tears and ocular surface that results in symptoms of discomfort, visual disturbance. The present study was conducted to assess prevalence and risk factors of dry eye diseases among the study group. Subjects and Methods: The present study was conducted from February 2018 to July 2018 on 184 patients of both genders visiting the Department of Ophthalmology Mediciti institute of medical sciences with eye complaints. Slit-lamp biomicroscopy with a cobalt blue filter was used to investigate the tear film layer, and the interval from the last blink to the appearance of the first random dry spot on the cornea was noted. Schirmer’s test was performed. Whatman filter paper no 41 was placed in the lower fornix at the lateral one-third of the lower lid margin. Results: Age groups 40-50 years had 52, 50-60 years had 98 and 60-70 years had 34 patients. There were 110 males and 74 females. The difference was significant (P< 0.05). 64 (58.1%) males and 40 (54%) had a dry eye disease. The prevalence found to be 61.9%. The severity of DED was mild in 25%, moderate in 46% and severe in 29%. The difference was significant (P< 0.05). Risk factors of DED were steroid use in 14%, smoking in 56%, alcoholism in 24%, computer job in 78%, systemic allergy in 4%, ocular allergy in 32%, contact lens use in 17% and previous ocular surgery in 7%. The difference was significant (P< 0.05). Conclusion: The author found that the prevalence rate of dry eyes was 61.9%. Risk factors of DED were steroid use, smoking, alcoholism, computer job, systemic allergy, ocular allergy, contact lens use and previous ocular surgery.
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Christensen, Dale B., Barbara Williams, Harold I. Goldberg, Diane P. Martin, Ruth Engelberg, and James P. LoGerfo. "Comparison of Prescription and Medical Records in Reflecting Patient Antihypertensive Drug Therapy." Annals of Pharmacotherapy 28, no. 1 (1994): 99–104. http://dx.doi.org/10.1177/106002809402800119.
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OBJECTIVE: To determine the completeness of prescription records, and the extent to which they agreed with medical record drug entries for antihypertensive medications. SETTING: Three clinics affiliated with two staff model health maintenance organizations (HMOs). PARTICIPANTS: Randomly selected HMO enrollees (n=982) with diagnosed hypertension. METHODS: Computer-based prescription records for antihypertensive medications were reviewed at each location using an algorithm to convert the directions-for-use codes into an amount to be consumed per day (prescribed daily dosage). The medical record was analyzed similarly for the presence of drug notations and directions for use. RESULTS: There was a high level of agreement between the medical record and prescription file with respect to identifying the drug prescribed by drug name. Between 5 and 14 percent of medical record drug entries did not have corresponding prescription records, probably reflecting patient decisions not to have prescriptions filled at HMO-affiliated pharmacies or at all. Further, 5–8 percent of dispensed prescription records did not have corresponding medical record drug entry notations, probably reflecting incomplete recording of drug information on the medical record. The percentage of agreement of medical records on dosage ranged from 68 to 70 percent across two sites. Approximately 14 percent of drug records at one location and 21 percent of records at the other had nonmatching dosage information, probably reflecting dosage changes noted on the medical record but not reflected on pharmacy records. CONCLUSIONS: In the sites studied, dispensed prescription records reasonably reflect chart drug entries for drug name, but not necessarily dosage.
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Sejima, Takehiro, Tetsuya Yumioka, Noriya Yamaguchi, et al. "Cross-Sectional Investigations of Pre- and Post-Operative Renal Global Function and Renal Parenchymal Volumetry in Both Partial and Radical Nephrectomy Utilizing Film-Based Technology." Current Urology 12, no. 3 (2018): 127–33. http://dx.doi.org/10.1159/000489430.
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Objectives: To investigate pre- and post-operative renal global function and renal parenchymal volume (RPV) in both partial nephrectomy (PN) and radical nephrectomy (RN) utilizing film-based technology. Patients and Methods: The patient cohort consisted of 81 and 82 cases with T1 tumors (≤ 7 cm) treated by PN and RN, respectively. Renal global function was assessed using the estimated glomerular filtration rate (eGFR), and RPV was measured using a Synapse Vincent volumetric analyzer which creates a reconstructed image from a computed tomography scan. Renal global function and RPV were evaluated pre-operatively and 6 months post-operatively. Results: The percent eGFR decline of PN cases was significantly reduced compared with RN cases (p < 0.0001). Post-operative RPV of the contralateral side was significantly increased compared with pre-operative RPV (p < 0.0001) in RN cases. The percent change of the contralat-eral side RPV was slightly increased in RN compared with PN cases (p = 0.1881). A strong positive correlation was noted between post-operative eGFR and post-operative total RPV (r = 0.69, p < 0.0001), and a strong negative correlation was noted between percent eGFR decline and post-operative total RPV (r = -0.63, p < 0.0001). Conclusions: Prominent compensatory renal hypertrophy occurred within 6 months after RN. Post-operative renal functional outcome was closely correlated with the post-operative total RPV. In addition to RPV, further studies to unravel post-operative renal function from multifactorial aspects including surgical factors and intrinsic medical disease should be performed in the future.
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Popova, Nina V., Anna V. Gavrilova, Anna V. Kuzmina, and Elizaveta L. Popova. "Psychological features of listening comprehension of English-language video materials by technical university students in flipped classroom mode." Tambov University Review. Series: Humanities, no. 185 (2020): 41–55. http://dx.doi.org/10.20310/1810-0201-2020-25-185-41-55.
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Listening comprehension, as the most challenging receptive aspect of learning a foreign language at a technical university, is considered. It is noted that in addition to linguistic difficulties, students experience such psychological difficulties as a lack of recipient’s own perceptual experience, uncomfortable perception conditions, anxiety and fear of failure to perform this type of speech activity. It is shown that the perceptual activity of students, aimed at the auditory perception of English discourse, is naturally included in the most relevant students’ communicative competence. The study is aimed at considering psychological and pedagogical aspects in teaching ordinary listening comprehension without a video sequence and with the use of video materials. We reveal the advantages of using video materials that contribute to the creation of psychologically comfortable conditions for students in the educational process. Opinion analysis of first-year students of the St. Petersburg State University of Telecommunications on conducting listening comprehension in regular and flipped classroom modes is presented: it turns out that most students prefer to perform listening practice at home. We describe the audiovisual technology of advanced independent work on listening comprehension to professionally oriented video materials using the electronic resources VideoAnt, Mindmeister, LMS MOODLE. An advertising film of the computer company CISCO (USA) was used as video course basis, with its subject fully corresponding to the “Service” programme of St. Petersburg State University of Telecommunications.
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Fanney, A. Hunter, Mark W. Davis, Brian P. Dougherty, David L. King, William E. Boyson, and Jay A. Kratochvil. "Comparison of Photovoltaic Module Performance Measurements." Journal of Solar Energy Engineering 128, no. 2 (2006): 152–59. http://dx.doi.org/10.1115/1.2192559.
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Computer simulation tools used to predict the energy production of photovoltaic systems are needed in order to make informed economic decisions. These tools require input parameters that characterize module performance under various operational and environmental conditions. Depending upon the complexity of the simulation model, the required input parameters can vary from the limited information found on labels affixed to photovoltaic modules to an extensive set of parameters. The required input parameters are normally obtained indoors using a solar simulator or flash tester, or measured outdoors under natural sunlight. This paper compares measured performance parameters for three photovoltaic modules tested outdoors at the National Institute of Standards and Technology (NIST) and Sandia National Laboratories (SNL). Two of the three modules were custom fabricated using monocrystalline and silicon film cells. The third, a commercially available module, utilized triple-junction amorphous silicon cells. The resulting data allow a comparison to be made between performance parameters measured at two laboratories with differing geographical locations and apparatus. This paper describes the apparatus used to collect the experimental data, test procedures utilized, and resulting performance parameters for each of the three modules. Using a computer simulation model, the impact that differences in measured parameters have on predicted energy production is quantified. Data presented for each module includes power output at standard rating conditions and the influence of incident angle, air mass, and module temperature on each module’s electrical performance. Measurements from the two laboratories are in excellent agreement. The power at standard rating conditions is within 1% for all three modules. Although the magnitude of the individual temperature coefficients varied as much as 17% between the two laboratories, the impact on predicted performance at various temperature levels was minimal, less than 2%. The influence of air mass on the performance of the three modules measured at the laboratories was in excellent agreement. The largest difference in measured results between the two laboratories was noted in the response of the modules to incident angles that exceed 75deg.
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Shestak, Viktor, Alena Gura, Uliana Borisova, and Svetlana Kozlovskaya. "The Role of Social Networks in the Organization of the Educational Process and Learning." International Journal of Interactive Mobile Technologies (iJIM) 15, no. 11 (2021): 96. http://dx.doi.org/10.3991/ijim.v15i11.21545.
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<p class="Paragraph"><span lang="EN-GB">The objectives of the study are to conduct a survey among students and teachers of Russian universities, which will determine their general attitude to the use of social networks in education; to identify the functions of social networks from the perspective of respondents; based on the results of both stages of the study, to determine the role of social networks in the educational process. Students and teachers of four Russian universities (MGIMO University, Kuban State Technological University, North-Eastern Federal University, Russian State Social University) took part in the survey. A total of 500 students and 100 teachers were interviewed. The results of the first part of the study showed that the attitude of students and teachers towards the use of social networks in education is generally positive. Both groups of respondents noted the advantages of introducing social networks into the educational process and also stated their willingness to increase their use. When using social networks in education, students can fill in special forms to indicate social network accounts to be subsequently used. Also, the administration of group chats can be taken under the control of the university for the purpose of a more structured exchange of information/educational materials.</span><strong></strong></p>
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Bhardwaj, Rohit, Isha Preet Tuli, Mohamed Shareef PK, Ankur Gupta, and Saurabh Makkar. "Cricoid Ossification Mimicking an Esophageal Foreign Body: A Victim of Overdiagnosis." Dubai Medical Journal 4, no. 1 (2021): 77–80. http://dx.doi.org/10.1159/000510599.
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Laryngeal cartilages undergo ossification, usually after the third decade of life. Variations exist in the extent and age of onset of ossification. Radiologically, these ossified cartilages may mimic an aerodigestive tract foreign body. We present an unusual case where the ossified cricoid cartilage masqueraded as a fish bone in the aerodigestive tract. A 48-year-old male patient presented to us with a foreign body sensation and throat pain after consuming fish. We found no fish bone on endoscopic laryngopharyngeal assessment but noted a linear opacity against the C-6 vertebral body in the aerodigestive tract on a lateral X-ray film of the neck. Rigid esophagoscopy also did not reveal any foreign object, but a computed tomography (CT) scan showed a linear hyperdensity in the wall of the aerodigestive tract, against the C-6 vertebral body, due to linear ossification in the midline of the cricoid lamina posteriorly. The patient’s symptoms improved within 1 week of anti-reflux medications, and he remains asymptomatic. It is possible to encounter such rare cases of cartilage ossification while dealing with foreign body aerodigestive tract in adult patients in clinical practice. Proper assessment using CT scan prevents unnecessary procedures and anxiety to the patient.
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Morgan, Frances, and James Mooney. "‘The Same Trade as Mozart’: Convincing the sceptics of electronic music’s value." Journal of Popular Television 9, no. 1 (2021): 55–77. http://dx.doi.org/10.1386/jptv_00041_1.
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In August 1969, the music documentary series Workshop (1964–78) focused on electronic music in a 55-minute-long film titled ‘The Same Trade as Mozart’. Produced and directed by David Buckton, the film included interviews with composers Karlheinz Stockhausen, Tristram Cary and Justin Connolly; BBC Radiophonic Workshop staff Desmond Briscoe, David Cain and John Baker, and the Workshop’s founder, Daphne Oram; and Peter Zinovieff, director of EMS (Electronic Music Studios). It presented electronic music in a number of contexts, such as education, pop production and live performance. Technological change in music has often provoked hostility among the public and critics, and the rapid advancement of electronic music post-Second World War was no exception. Adopting a mode of analysis more commonly encountered in studies of the public communication of science, this article considers ‘The Same Trade as Mozart’ as an attempt by electronic music’s advocates, such as those listed above, to convince sceptics of its value. While sceptical responses to the presence of new technologies in music have been widely noted and theorized by scholars in science and technology studies, we call attention to the strategies employed by the advocates of such technologies to defend themselves against such criticisms, including humour, heuristic explanations and a focus on electronic music’s educational and thus social value. The use of computers in electronic music was a new and contentious development in the field, requiring a greater degree of advocacy from its proponents. We examine how the computer’s role in composition is presented in ‘The Same Trade as Mozart’, compared with other media portrayals of computing in the 1960s. Drawing on theories of filmed musical performance, we discuss how visual tropes of ‘classical’ music are used in ‘The Same Trade as Mozart’ to challenge preconceptions about the relationships between composers, musicians and new technologies.
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Belchis, Deborah A., Kris Shekitka, and Christopher D. Gocke. "A Unique, Histopathologic Lesion in a Subset of Patients With Spontaneous Pneumothorax." Archives of Pathology & Laboratory Medicine 136, no. 12 (2012): 1522–27. http://dx.doi.org/10.5858/arpa.2012-0330-oa.
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Context.—Spontaneous pneumothorax can be idiopathic (primary), or it can occur in association with an underlying predisposing condition (secondary). Spontaneous pneumothorax may be a harbinger of an undiagnosed clinical condition, which may be associated with serious systemic abnormalities, making early recognition and diagnosis important. The pulmonary pathology of some of these disorders has not been fully elucidated. Objective.—To review cases of pneumothorax in the hope of identifying pathologic features that might correlate to specific clinical syndromes. Design.—The pathology computer files at 3 hospitals were searched for all cases of spontaneous pneumothorax, primary and secondary, regardless of etiology during a 11-year period. Ninety-two cases were retrieved. Each of the cases was evaluated for reactive eosinophilic pleuritis, elastosis, pleural fibrosis, emphysema, intra-alveolar macrophages, cholesterol clefts, vasculopathy, and intraparenchymal or intrapleural cysts. Clinical information regarding asthma and smoking history, site of the pneumothorax, family history, radiographic findings, predisposing conditions, recurrence, age, and sex were extracted from the medical records. Results.—In 11 patients (12% of all the patients with spontaneous pneumothorax), a distinctive pattern of pleural fibrosis with islands of fibroblastic foci within a myxoid stroma was noted at the pleural-parenchymal interface or leading edge. These lesions correlated with a select subset of patients, consisting predominantly of young men. Conclusions.—Our review identified a distinct pattern of pneumothorax–associated fibroblastic lesions in a subset of cases of spontaneous pneumothorax. Whether this is related to the pathogenesis of the pneumothorax remains to be elucidated.
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Maloney, Marcus. "Ambivalent Violence in Contemporary Game Design." Games and Culture 14, no. 1 (2016): 26–45. http://dx.doi.org/10.1177/1555412016647848.
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Through a textual analysis of three noted examples— Bioshock, Spec Ops: The Line, and Grand Theft Auto V—This article explores the capacity for ambivalence in violent video games. The analyses bring into dialogue film scholarship which has sought to understand a comparable trend in cinema with games scholarship, most notably Darley’s discussion of narrative “decentering” and Bogost’s notion of “procedural rhetoric.” In all three games, the core gameplay in which players are rewarded for repetition of violent behaviors is juxtaposed with ambivalent narrative-contextual aspects. However, in the more overtly “multidimensional” video games medium, this juxtaposition plays out in a more fractured manner than in the flatter visual space of cinema.
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Rasheed, Adnan, Jong W. Lee, and Hyun W. Lee. "Development of a model to calculate the overall heat transfer coefficient of greenhouse covers." Spanish Journal of Agricultural Research 15, no. 4 (2018): e0208. http://dx.doi.org/10.5424/sjar/2017154-10777.
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A Building Energy Simulation (BES) model based on TRNSYS, was developed to investigate the overall heat transfer coefficient (U-value) of greenhouse covers including polyethylene (PE), polycarbonate (PC), polyvinyl chloride (PVC), and horticultural glass (HG). This was used to determine the influences of inside-to-outside temperature difference, wind speed, and night sky radiation on the U-values of these materials. The model was calibrated using published values of the inside and outside convective heat transfer coefficients. Validation of the model was demonstrated by the agreement between the computed and experimental results for a single-layer PE film. The results from the BES model showed significant changes in U-value in response to variations in weather parameters and the use of single or double layer greenhouse covers. It was found that the U-value of PC, PVC, and HG was 9%, 4%, and 15% lower, respectively, than that for PE. In addition, by using double glazing a 34% reduction in heat loss was noted. For the given temperature U-value increases as wind speed increases. The slopes at the temperature differences of 20, 30, 40, and 50 °C, were approximately 0.3, 0.5, 0.7, and 0.9, respectively. The results agree with those put forward by other researchers. Hence, the presented model is reliable and can play a valuable role in future work on greenhouse energy modelling.
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Seon, Guillaume, Yuri Nikishkov, Andrew Makeev, and Lauren Fergusson. "Predicting Formation of Manufacturing Defects in Contoured Composites." Journal of the American Helicopter Society 64, no. 4 (2019): 1–15. http://dx.doi.org/10.4050/jahs.64.042005.
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Composite helicopter rotor components are typically thick and often have areas with a tight radius of curvature, which make them especially prone to process-induced defects, including wrinkles and voids at ply interfaces. Such flaws cause high rejection rates in production of flight-critical components and structures. This work seeks to fill the gaps in understanding generation of the noted defects in contoured polymer–matrix composite laminates. In particular, understanding and modeling defect formation at the early stages of the manufacturing process might be the missing link to enable the development of practical engineering solutions allowing for better control of the manufacturing process of contoured composite parts. In this work, an approach based on a continuum description of the uncured prepreg material, including the initial bulk or void content, and finite element modeling (FEM) is used to simulate the consolidation process at the early stages of manufacturing of contoured laminates. The simulation predicts instabilities leading to formation of both wrinkles and voids at ply interfaces during laminate debulking or vacuum consolidation. Applicability of the method to consolidation in both closed-cavity and open-face tooling is also demonstrated. FEM results show good correlation with X-ray computed tomography data. This work also introduces a new simulation concept based on finite element and discrete modeling of voids at ply interfaces to improve the accuracy of predicting their evolution during the debulking operations.
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Bhat, Abdul Rashid, Muhammed Afzal Wani, Altaf Rehman Kirmani, and Altaf Umar Ramzan. "Histological-subtypes and anatomical location correlated in meningeal brain tumors (meningiomas)." Journal of Neurosciences in Rural Practice 05, no. 03 (2014): 244–49. http://dx.doi.org/10.1055/s-0039-1700321.
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ABSTRACT Context: Not enough literature is available to suggest a link between the histological subtypes of intracranial meningeal brain tumors, called ‘meningiomas’ and their location of origin. Aim: The evidence of correlation between the anatomical location of the intracranial meningiomas and the histopathological grades will facilitate specific diagnosis and accurate treatment. Materials and Methods: The retrospective study was conducted in a single high-patient-inflow Neurosurgical Center, under a standard and uniform medical protocol, over a period of 30 years from December 1982 to December 2012. The records of all the operated 729 meningiomas were analyzed from the patient files in the Medical Records Department. The biodata, x-rays, angiography, computed tomography (CT) scans, imaging, histopathological reports, and mortality were evaluated and results drawn. Results: The uncommon histopathological types of meningiomas (16.88%) had common locations of origin in the sphenoid ridge, posterior parafalcine, jugular foramen, peritorcular and intraventricular regions, cerebellopontine angle, and tentorial and petroclival areas. The histopathological World Health Organization (WHO) Grade I (Benign Type) meningiomas were noted in 89.30%, WHO Grade II (Atypical Type) in 5.90%, and WHO Grade III (Malignant Type) in 4.80% of all meningiomas. Meningiomas of 64.60% were found in females, 47.32% were in the age group of 41-50 years, and 3.43% meningiomas were found in children. An overall mortality of 6.04% was noted. WHO Grade III (malignant meningiomas) carried a high mortality (25.71%) and the most common sites of meningiomas with high mortality were: The cerebellopontine angles, intraventricular region, sphenoid ridge, tuberculum sellae, and the posterior parafalcine areas. Conclusion: The correlation between the histological subtypes and the anatomical location of intracranial meningeal brain tumors, called meningiomas, is evident, but further research is required to establish the link.
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Moe, Khin Soe. "ENGINEERING GEOLOGY OF ALLUVIAL DEPOSITS IN YANGON AREA." ASEAN Engineering Journal 9, no. 1 (2019): 15–28. http://dx.doi.org/10.11113/aej.v9.15505.
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Two-thirds of the Yangon area is covered by alluvial deposits, which are weak in their strength and highly permeable. As Yangon area has undergone very rapid development and expansion, its expansion of new satellite towns is mostly built on the alluvial deposit. Engineering geology study of alluvial deposits in Yangon area is therefore needed to ascertain the nature and properties of alluvial deposits at different locations and at various depths. The distribution of alluvial deposits in Yangon starts from Kyaukmyinthar area to the Letkikkone and along the flood plain of Yangon river and Hlaing river. The alluvial deposits are categorized into valley fill, marine, and flat plain types. The most common deposit types are CL, CH, SM, SC, ML according to the Unified Soil Classification. Standard Penetration Test (SPT) is performed for this research and samples collected from boreholes are tested in the laboratory. Based on the SPT value and the laboratory results, the bearing capacity calculations are made for the foundation condition. Groundwater level is noted on each bore holes for the hydrological characteristics. The ultimate bearing capacity of valley fill deposits are more than 200 kPa in Ahlon Township but the ultimate bearing capacity of most marine alluvium in Hlaingtharyar and N. Okkalarpa Townships are less than 100 kPa.
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Van Nhan, Vo, Le Van Son, Ta Anh Tuan, et al. "A New Technique in Alveolar Cleft Bone Grafting for Dental Implant Placement in Patients With Cleft Lip and Palate." Cleft Palate-Craniofacial Journal 55, no. 2 (2017): 180–88. http://dx.doi.org/10.1177/1055665617723633.
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Objective: To evaluate 2 iliac corticocancellous-block grafting techniques for dental implant placement in residual alveolar clefts. Design: Nonrandomized prospective clinical trial between March 2010 and December 2014. Setting: National Hospital of Odonto-Stomatology, Hanoi, Vietnam. Participants: Thirty-two patients (23 female, 9 male; mean age, 21.28 years; range, 16-31 years) with unilateral complete alveolar cleft after reconstructive surgery for cleft lip and palate (CLP). Interventions: Harvested iliac crest bone was cut into 2 corticocancellous blocks. The smaller block was adapted against the sutured nasal mucoperiosteum and overlaid with cancellous bone; the larger one overlapped the labial cleft margin and was fixed with screws. Endosteal dental implants were placed after 4 to 6 months, and final restorations were delivered 6 months later. Main Outcome Measures: Flap statuses were assessed clinically. Bone formation was assessed using the Enemark scale. Cone-beam computed tomography was used for graft height and width measurements. Implant health was assessed by the Misch criteria. Results: The mean postgrafting follow-up period was 36.7 ± 10.4 (range, 18-53) months. Three patients (9.4%) showed flap dehiscence but no infection 7 days after bone grafting. Twenty-nine patients (90.6%) had 75% to 100% bone fill (Enemark score of 1). The mean graft height and width were 11.4 ± 2.4 and 6.1 ± 1.0 mm, respectively. Sufficient bone for implant placement was noted in 29 patients (90.6%); the others required partially fixed prostheses. All implants functioned for at least 18 months. Conclusion: The proposed technique is reliable to reconstruct the alveolar cleft for implant placement in CLP patients.
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CAMPBELL, DERMOT F., CIARAN MCDONNELL, MARTI MEINARDI, and BUNNY RICHARDSON. "The need for a speech corpus." ReCALL 19, no. 1 (2007): 3–20. http://dx.doi.org/10.1017/s0958344007000213.
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This paper outlines the ongoing construction of a speech corpus for use by applied linguists and advanced EFL/ESL students. In the first part, sections 1–4, the need for improvements in the teaching of listening skills and pronunciation practice for EFL/ESL students is noted. It is argued that the use of authentic native-to-native speech is imperative in the teaching/learning process so as to promote social inclusion. The arguments for authentic language learning material and the use of a speech corpus are contextualised within the literature, based mainly on the work of Swan, Brown and McCarthy. The second part, section 5, addresses features of native speech flow which cause difficulties for EFL/ESL students (Brown, Cauldwell) and establishes the need for improvements in the teaching of listening skills. Examples are given of reduced forms characteristic of relaxed native speech, and how these can be made accessible for study using the Dublin Institute of Technology’s slow-down technology, which gives students more time to study native speech features, without tonal distortion. The final part, sections 6–8, introduces a novel Speech Corpus being developed at DIT. It shows the limits of traditional corpora and outlines the general requirements of a Speech Corpus. This tool – which will satisfy the needs of teachers, learners and researchers – will link digitally recorded, natural, native-to-native speech so that each transcript segment will give access to its associated sound file. Users will be able to locate desired speech strings, play, compare and contrast them – and slow them down for more detailed study.
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Hodson, Nicholas A., Stephen M. Dunne, and Caroline L. Pankhurst. "The Effect of Infection-Control Barriers on the Light Intensity of Light-Cure Units and Depth of Cure of Composite." Primary Dental Care os12, no. 2 (2005): 61–67. http://dx.doi.org/10.1308/1355761053695149.
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Aim Dental curing lights are vulnerable to contamination with oral fluids during routine intra-oral use. This controlled study aimed to evaluate whether or not disposable transparent barriers placed over the light-guide tip would affect light output intensity or the subsequent depth of cure of a composite restoration. Methods The impact on light intensity emitted from high-, medium- and low-output light-cure units in the presence of two commercially available disposable infection-control barriers was evaluated against a no-barrier control. Power density measurements from the three intensity light-cure units were recorded with a radiometer, then converted to a digital image using an intra-oral camera and values determined using a commercial computer program. For each curing unit, the measurements were repeated on ten separate occasions with each barrier and the control. Depth of cure was evaluated using a scrape test in a natural tooth model. Results At each level of light output, the two disposable barriers produced a significant reduction in the mean power density readings compared to the no-barrier control (P<0.005). The cure sleeve inhibited light output to a greater extent than either the cling film or the control (P<0.005). Only composite restorations light-activated by the high level unit demonstrated a small but significant decrease in the depth of cure compared to the control (P<0.05). Conclusion Placing disposable barriers over the light-guide tip reduced the light intensity from all three curing lights. There was no impact on depth of cure except for the high-output light, where a small decrease in cure depth was noted but this was not considered clinically significant. Disposable barriers can be recommended for use with light-cure lights.
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Babenko, Ludmila, and Alina Trepacheva. "Towards Unsecurity of Two Homomorphic Encryptions Based on Residue System." SPIIRAS Proceedings 18, no. 1 (2019): 230–62. http://dx.doi.org/10.15622/sp.18.1.230-262.
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The security of two recently proposed symmetric homomorphic encryption schemes based on residue system is analyzed.
 Both schemes have a high computational efficiency since using residue system naturally allows parallelizing computations. So they could be good candidates to protect the data in clouds. But to the best of our knowledge there is a lack of security analysis for these encryption schemes.
 It should be noted that the first cryptosystem under our consideration was already considered in literature.
 The sketch of adaptive chosen-plaintext attack was proposed and estimation of its success was given.
 In this paper the attack is analyzed and it is shown that in some cases it may work incorrectly. Also more general algorithm of known-plaintext attack is presented. Theoretical estimations of probability to recover the key using it and practical estimations of this probability obtained during the experiments are provided.
 The security of the second cryptosystem has not been analyzed yet and we fill this gap for known-plaintext attack. The dependency between the number of «plaintext, ciphertext» pairs required to recover the key and parameters of the cryptosystem is analyzed. Also some recommendations for increasing the security level are provided.
 The final conclusion of our analysis is that both cryptosystems are vulnerable to known-plaintext attack. And it may be dangerous to encrypt private data using them.
 Finally it should be noted that the key element of the proposed attacks is the algorithm of computing the greatest common divisor. So their computational complexity depends polynomially on the size of input data.
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Chen, Lei, Sicheng Yuan, Huaiyuan Wang, Yanji Zhu, Dengyu Fu, and Zhenggui Li. "Spherical Polydopamine-Modified Carbon-Felt Cathode with an Active Indole Structure for Efficient Hydrogen Peroxide Electroproduction." Applied Sciences 11, no. 12 (2021): 5371. http://dx.doi.org/10.3390/app11125371.
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As one of the most promising methods for H2O2 production, H2O2 electroproduction has received increasingly more attention. In this study, a spherical particle polydopamine (pDA) modified carbon felt (noted as ht-pDA/ACF) for H2O2 production was fabricated. At a constant potential of 2.0 V and pH of 1.0, the H2O2 production of the ht-pDA/ACF cathode reached 220 mg/L after 6 h of electrolyzing, compared to the 30 mg/L H2O2 production of raw carbon felt. Firstly, the spherical pDA exposes more active sites that are favorable to the 2e− ORR compared to pDA film. Secondly, the ring cleavage and re-cyclization of indole structure in the pDA during electrolyzing could form the radicals that act as the intermediate to the H2O2 formation. This research exhibits a low-cost method to modify carbon materials for effective H2O2 electroproduction. The ht-pDA/ACF cathode is promising for green H2O2 production and wastewater treatment.
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Kovilakam, Mahesh, Larry W. Thomason, Nicholas Ernest, Landon Rieger, Adam Bourassa, and Luis Millán. "The Global Space-based Stratospheric Aerosol Climatology (version 2.0): 1979–2018." Earth System Science Data 12, no. 4 (2020): 2607–34. http://dx.doi.org/10.5194/essd-12-2607-2020.
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Abstract. A robust stratospheric aerosol climate data record enables the depiction of the radiative forcing of this highly variable component of climate. In addition to the radiative forcing, stratospheric aerosol also plays a key role in the chemical processes leading to ozone depletion. Therefore, stratospheric aerosol is one of the crucial parameters in understanding climate change in the past and potential changes in the future. As a part of Stratospheric-tropospheric Processes and their Role in Climate (SPARC) Stratospheric Sulfur and its Role in Climate (SSiRC) activity, the Global Space-based Stratospheric Aerosol Climatology (GloSSAC) was created (Thomason et al., 2018) to support the World Climate Research Programme's (WCRP) Coupled Model Intercomparison Project Phase 6 (CMIP6) (Eyring et al., 2016). This data set is a follow-on to one created as a part of SPARC's Assessment of Stratospheric Aerosol Properties (ASAP) activity (SPARC, 2006) and a data created for the Chemistry-Climate Model Initiative (CCMI) in 2012 (Eyring and Lamarque, 2012). Herein, we discuss changes to the original release version including those as a part of v1.1 that was released in September 2018 that primarily corrects an error in the conversion of Cryogenic Limb Array Etalon Spectrometer (CLAES) data to Stratospheric Aerosol and Gas Experiment (SAGE) II wavelengths, as well as the new release, v2.0. Version 2.0 is focused on improving the post-SAGE II era (after 2005) with the goal of mitigating elevated aerosol extinction in the lower stratosphere at mid- and high latitudes noted in v1.0 as noted in Thomason et al. (2018). Changes include the use of version 7.0 of the Optical Spectrograph and InfraRed Imaging System (OSIRIS), the recently released Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) lidar Level 3 stratospheric aerosol profile monthly product and the new addition of SAGE III/ISS. Here, we use an observed relationship between (i) OSIRIS extinction at 750 nm and (ii) SAGE II and SAGE III/ISS extinction at 525 nm to derive an altitude–latitude-based monthly climatology of Ångström exponent to compute OSIRIS extinction at 525 nm, resulting in a better agreement between OSIRIS and SAGE measurements. We employ a similar approach to convert OSIRIS 750 nm extinction to 1020 nm extinction for the post-SAGE II period. Additionally, we incorporate the recently released standard CALIPSO stratospheric aerosol profile monthly product into GloSSAC with an improved conversion technique of the 532 nm backscatter coefficient to extinction using an observed relationship between OSIRIS 525 nm extinction and CALIPSO 532 nm backscatter. SAGE III/ISS data are also incorporated in GloSSAC to extend the climatology to the present and to test the approach used to correct OSIRIS/CALIPSO data. The GloSSAC v2.0 netCDF file is accessible at https://doi.org/10.5067/glossac-l3-v2.0 (Thomason, 2020).
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Hassan, Sana Khalid Abdul, and Firas Mohammed Tuaimah. "Optimal location of unified power flow controller genetic algorithm based." International Journal of Power Electronics and Drive Systems (IJPEDS) 11, no. 2 (2020): 886. http://dx.doi.org/10.11591/ijpeds.v11.i2.pp886-894.
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<p>Now-a-days the Flexible AC Transmission Systems (FACTS) technology is very effective in improving the power flow along the transmission lines and makes the power system more flexible and controllable. This paper deals with overload transmission system problems such as (increase the total losses, raise the rate of power generation, and the transmission line may be exposed to shut down when the load demand increase from the thermal limit of transmission line) and how can solve this problem by choosing the optimal location and parameters of Unified Power Flow Controllers (UPFCs). which was specified based on Genetic Algorithm (GA) optimization method, it was utilized to search for optimum FACT parameters setting and location based to achieve the following objectives: improve voltages profile, reduce power losses, treatment of power flow in overloaded transmission lines and reduce power generation. MATLAB was used for running both the GA program and Newton Raphson method for solving the load flow of the system The proposed approach is examined and tested on IEEE 30-bus system. The practical part has been solved through Power System Simulation for Engineers (PSS\E) software Version 32.0 (The Power System Simulator for Engineering (PSS/E) software created from Siemens PTI to provide a system of computer programs and structured data files designed to handle the basic functions of power system performance simulation work, such as power flow, optimal power flow, fault analysis, dynamic simulations...etc.). The Comparative results between the experimental and practical parts obtained from adopting the UPFC where too close and almost the same under different loading conditions, which are (5%, 10%, 15% and 20%) of the total load. can show that the total active power losses for the system reduce at 69.594% at normal case after add the UPFC device to the system. also the reactive power losses reduce by 75.483% at the same case as well as for the rest of the cases. in the other hand can noted the system will not have any overload lines after add UPFC to the system with suitable parameters.</p>
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Majumder, Durjoy. "Development of MatLab Coding for Early Detection of Leukemia through Automated Analysis of RBCs." Current Cancer Therapy Reviews 16, no. 2 (2020): 152–64. http://dx.doi.org/10.2174/1573394715666191204102545.
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Background: Bone marrow biopsy has become an integral part of leukemia diagnosis and its treatment. Several advancements are being made towards the analysis of digital images of biopsy samples. Recently, the FDA approved the procedures of digital health. In tune with that, digital image analysis has become propelled. With the advent of high-throughput technologies, the scientific community focuses on the red blood cells (RBCs) for early detection of cancer, including leukemia. The reasons are due to their abundance in peripheral blood and hence, easily accessible compared to the bone marrow biopsy procedure. High magnification and high-resolution electron microscopy-based ultra-structural analysis of RBCs already proved the utility of the hypothesis about a decade ago. However, in clinical set-up, electron microscopy-based procedures are the major bottleneck in the implementation of early detection of leukemia. Algorithm-based computer vision may be suitable to overcome this limitation. Methods: An intensive search with PubMed and Google for early diagnosis of leukemia through RBC light microscopic images was made. For this search, the image processing algorithm for RBC was also made in PubMed, IEEE Xplorer and Google; and the latest developments are noted. To fill the existing gap, a user-friendly MatLab coding is developed for automated analysis of RBC images. Results: RBC images from both normal and leukemia were analyzed with the developed code. Each RBC cells were analyzed individually for each sample of normal and leukemia. Therefore, in the output cellular characteristics namely, radius, perimeter, area, convexity and solidity were represented in a quantitative manner. Comparison of mean values between normal and leukemia groups for corresponding variables showed statistical significance. In the test run, data of 82 RBC cells from single leukemia sample when compared with the data of pooled data of normal samples also showed significant difference (P<0.05). Conclusion: Thus, the developed code successfully distinguishes between RBC cells of leukemia and normal. We hope that this RBC based developed code would be useful in identifying earlystage of leukemia in an individual patient; however, for this, ~100 RBC cells are needed to be analyzed. As the developed code is based on RBC based diagnosis therefore, may be applied to other cancers and if needed, further modification is possible due to availability of code. Thus, it is expected that the developed MatLab code may play a role in preventive oncology.
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Brza, M. A., Shujahadeen B. Aziz, H. Anuar, and Muataz Hazza F. Al Hazza. "From Green Remediation to Polymer Hybrid Fabrication with Improved Optical Band Gaps." International Journal of Molecular Sciences 20, no. 16 (2019): 3910. http://dx.doi.org/10.3390/ijms20163910.
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The present work proposed a novel approach for transferring high-risk heavy metals tometal complexes via green chemistry remediation. The method of remediation of heavy metals developed in the present work is a great challenge for global environmental sciences and engineering because it is a totally environmentally friendly procedure in which black tea extract solution is used. The FTIR study indicates that black tea contains enough functional groups (OH and NH), polyphenols and conjugated double bonds. The synthesis of copper complex was confirmed by the UV-vis, XRD and FTIR spectroscopic studies. The XRD and FTIR analysis reveals the formation of complexation between Cu metal complexes and Poly (Vinyl Alcohol) (PVA) host matrix. The study of optical parameters indicates that PVA-based hybrids exhibit a small optical band gap, which is close to inorganic-based materials. It was noted that the absorption edge shifted to lower photon energy. When Cu metal complexes were added to PVA polymer, the refractive index was significantly tuned. The band gap shifts from 6.2 eV to 1.4 eV for PVA incorporated with 45 mL of Cu metal complexes. The nature of the electronic transition in hybrid materials was examined based on the Taucs model, while a close inspection of the optical dielectric loss was also performed in order to estimate the optical band gap. The obtained band gaps of the present work reveal that polymer hybrids with sufficient film-forming capability could be useful to overcome the drawbacks associated with conjugated polymers. Based on the XRD results and band gap values, the structure-property relationships were discussed in detail.
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Lubko, Dmytro. "Design of a reference intelligence expert system for sheep breeding in national private farms." Ukrainian Journal of Educational Studies and Information Technology 5, no. 3 (2017): 1–18. http://dx.doi.org/10.32919/uesit.2017.03.01.
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The paper deals with the design of a reference intelligence expert system for sheep breeding. The process of its design and its functional capabilities are described. The developed reference intelligence expert system makes it possible to display recommendations and tips on the computer screen to select a rational and effective sheep breeding technology, as well as to print the received data. The developed system has a two-tier structure, namely, dialog selection of input criteria (data), as well as a module for logical processing and output of reasonable technology recommendations (output data). The step-by-step method of designing the system is determined. The first step is to obtain a technical specification from the customer (farm, enterprise, farmer, etc.) for the development of a reference system. The second step is to determine criteria for the technology in keeping with the farm requirement specification according to the literature and sheep breeding requirements. The third step is to identify the most important factors influencing the process of sheep raising for each of these criteria. The fourth step is to define the main production rules for which the system will be programmed, namely, the module for logical knowledge processing for this technology (and these are the input parameters (factors) when designing the system). The fifth step is to determine the main output criteria (factors) that will be displayed after processing the input rules of the system based on logical deduction rules according to the appropriate sheep breeding technology. The sixth step is to design buttons for more convenient system usage, in addition, if necessary, or at the request of the customer (for example, a button for deleting previous information in windows, a button for storing recommendations in a separate text file, the exit button, etc.). The seventh step is to test the system by users and the customer. The eighth step is to adopt the developed system by the customer and correct it, if necessary. The ninth step is to provide maintenance of the developed system. The block of input data of the developed intelligence expert system has the following elements: a) sheep handling (pasture-stall, stall-pasture); b) sheep condition (higher condition, average condition, lower than average condition); c) sheep breeding type (meat, milk, meat and milk, wool); d) sheep feeding (meat-and-wool sheep, rams of meat-and-goat sheep, sucking females to lactation); e) methods of breeding (purebred, crossing). The block of output factors where appropriate rational recommendations for sheep breeding technology comprises: a) recommendations for sheep handling; b) recommendations for treatment of sheep diseases; c) recommendations for sheep feeding; d) sheep slaughter and storage of products; e) recommended sheep breeds; f) recommendations for sheep breeding; g) characteristics of products. The developed system is intended primarily for private national farmers or interested private householders. It is noted that the use of this system will allow private households to increase the production and quality of meat, wool, lambskin and furs when breeding sheep. This will reduce the cost of the breeding technology, save the farmer time, allow to save on medicines, feeds, which, in turn, will increase profits and profitability of farms.