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Sánchez, Almudena, Rocío Acedo-Hernández, Matías Toril, Salvador Luna-Ramírez y Carlos Úbeda. "A Trace Data-Based Approach for an Accurate Estimation of Precise Utilization Maps in LTE". Mobile Information Systems 2017 (2017): 1–10. http://dx.doi.org/10.1155/2017/2752364.
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For network planning and optimization purposes, mobile operators make use of Key Performance Indicators (KPIs), computed from Performance Measurements (PMs), to determine whether network performance needs to be improved. In current networks, PMs, and therefore KPIs, suffer from lack of precision due to an insufficient temporal and/or spatial granularity. In this work, an automatic method, based on data traces, is proposed to improve the accuracy of radio network utilization measurements collected in a Long-Term Evolution (LTE) network. The method’s output is an accurate estimate of the spatial and temporal distribution for the cell utilization ratio that can be extended to other indicators. The method can be used to improve automatic network planning and optimization algorithms in a centralized Self-Organizing Network (SON) entity, since potential issues can be more precisely detected and located inside a cell thanks to temporal and spatial precision. The proposed method is tested with real connection traces gathered in a large geographical area of a live LTE network and considers overload problems due to trace file size limitations, which is a key consideration when analysing a large network. Results show how these distributions provide a very detailed information of network utilization, compared to cell based statistics.
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Thilmany, Jean. "Online Design". Mechanical Engineering 122, n.º 03 (1 de marzo de 2000): 68–72. http://dx.doi.org/10.1115/1.2000-mar-3.
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This article discusses that computer-based technologies have greatly influenced the way design engineers work. The first technological innovation was the use of high-powered personal computers. With PCs, engineers had access to high-speed applications of computer-aided design software right at their own desks. Personal computers took the place of rulers and pencils. The second innovation, he said, is the advancing capability of PCs to function as supercomputers, crunching numbers much faster than formerly possible. By taking advantage of this technology, engineers untrained in a mathematical application such as finite element analysis can run an FEA software program that performs calculations automatically and will shave weeks off the design process. Hothouse uses the Spatial technology to repair CAD models brought in from outside sources and to translate CAD files the company sends to its suppliers, collaborators, and clients. Before Hothouse began sending CAD files to the online service, company employees spent days repairing or rebuilding files on their own. Sometimes suppliers or clients that received Hothouse CAD files had to do similar work on their end.
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Kusumaningrum, Anggraini. "PENGUJIAN KINERJA JARINGAN SISTEM AKSES FILE BERBASIS CLIENT SERVER MENGGUNAKAN SAMBA SERVER". Conference SENATIK STT Adisutjipto Yogyakarta 2 (15 de noviembre de 2016): 129. http://dx.doi.org/10.28989/senatik.v2i0.31.
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Data communication is the process of exchanging data between two or more devices through a transmission medium such as a cable. In order for the data communication can occur, the device must be connected to communicate with each other or be a part of a communication system consisting of hardware (hardware) and software (software). Samba server is a software bridge between the two operating systems that run within a computer network. Samba is able to share files with computers that use operating system linux, unix and windows with a peer to peer system. The time needed on the LAN network access system based on client file servers using Samba server with a minimum file size of 3MB and a maximum of 1GB for the download process is 04 minutes 54 seconds while the upload is 09 minutes 24 seconds. Speed transfer rate that is produced with a minimum file size of 3MB and a maximum of 1GB for the download process is 4.762Kbps and to upload is 1.896Kbps. On QoS testing conducted on 5 PCs, 10PC, 15pc and client 20PC result more and more PC client that accesses 1 file the success rate will be getting worse, it is because the bottleneck on the network.Kata Kunci : Network, client server, Samba Server
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AL-HANANI, ALI y VENUS W. SAMAWI. "virus Detection Using Cryptography Algorithm". Iraqi Journal for Computers and Informatics 27, n.º 1 (30 de junio de 1996): 8–15. http://dx.doi.org/10.25195/ijci.v27i1.220.
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Many papers have been published about manipulating computer viruses; instructions that impact a computer system and after a period of incubation and reproducion, activate and demonstrate their presence. mest Viruses were designed to attack microcomputers, sincce microcomputers are widely used nowadays, and have simple operating systems which result in lack of quality of their security systern. Connecting computers with networks and using copies of programs from unreliable sources such as bullet in board systems will increase the :of viral contact and the spread of viruses. Data Encryption disguises data flowing through a network so that it is unintelligible to any one monitor the data, Encryption techniques can also be used to detect file modification which may caused either by unithorized users or by viruses. This paper concern in viruses atracking users on system files (.exe and com) in microcomputer sytems, where viruses Types, how they work, and anti-virus streiagies are going o scussed. Finally, a dccction stralegy depending on Encryption techniques built the operating sysiems Suggested to improve PCs Security and preventing unauthorized users from inserting into programas commands that will cause system corruption.
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Harter, Stephen P. "PFS: Professional File: Easy file management". Electronic Library 5, n.º 6 (junio de 1987): 324. http://dx.doi.org/10.1108/eb044772.
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Ransick, Mark H. y Chadwick D. Barklay. "Interfacing a Personal Computer to an Analog Scanning Electron Microscope for Storing Images on Optical Disks". Proceedings, annual meeting, Electron Microscopy Society of America 48, n.º 2 (12 de agosto de 1990): 84–85. http://dx.doi.org/10.1017/s0424820100134016.
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Most manufacturers of scanning electron microscopes (SEM) now offer models that display an image digitally. This holds many advantages, including the ability to store the image on a disk and perform image analysis on the sample. Most SEMs in service, however, produce only an analog video output; they do not have the ability to digitize the image. Film is the only method of storing images.Consequentially, film is a significant portion of every microscopy laboratory’s budget. Completely eliminating the use of film from use is not practical. There will always be the need to examine a hard copy of the image; many programs require duplicate copies of each image generated; and it is sound practice to keep a copy of each image on file. By archiving digital images to an inexpensive media, the amount of film used or the time devoted to processing negatives can be greatly reduced.By using personal computers (PCs)s, with a digitizing board and analog to digital (A/D) board, it is possible to construct a relatively low cost digitizing system for any SEM.
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Brand, N., L. Verspui y A. Oving. "Induced Mood and Selective Attention". Perceptual and Motor Skills 84, n.º 2 (abril de 1997): 455–63. http://dx.doi.org/10.2466/pms.1997.84.2.455.
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Subjects ( N = 60) were randomly assigned to an elated, depressed, or neutral mood-induction condition to assess the effect of mood state on cognitive functioning. In the elated condition film fragments expressing happiness and euphoria were shown. In the depressed condition some frightening and distressing film fragments were presented. The neutral group watched no film. Mood states were measured using the Profile of Mood States, and a Stroop task assessed selective attention. Both were presented by computer. The induction groups differed significantly in the expected direction on the mood subscales Anger, Tension, Depression, Vigour, and Fatigue, and also in the mean scale response times, i.e., slower responses for the depressed condition and faster for the elated one. Differences between conditions were found in the errors on the Stroop: in the depressed condition were the fewest errors and significantly longer error reaction times. Speed of error was associated with self-reported fatigue.
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Jamaludin, Ahmad, Donna Setiawati y Fariyono Fariyono. "Sistem Informasi Perbaikan Komputer Di Aditama Computer Boyolali Berbasis Android". JITU : Journal Informatic Technology And Communication 4, n.º 2 (6 de junio de 2020): 34–40. http://dx.doi.org/10.36596/jitu.v4i2.110.
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Research titled System Information Acceptance Services Aditama Android based.Aditama Computer is one of the company engaged in the service and sale of computers in Boyolali such as laptops, PCS, printers, CCTV, scanners, Fingerspots, LCD projectors.This business was established from 2003 and address at Jalan Kenanga No.14 Boyolali, Boyolali Sub-district, Boyolali district. The administration system of service acceptance on Aditama Computer is still simple, admin fill in the Entry service input form, and Rekap service data also still recab through the book.And that often happens admins are often late in giving information until the work of the computerThis makes it a frequent customer to ask admins directly through a short message.Itupun admin is also long in responding to customers. The purpose of this research is to design, implement, and test the service acceptance information system in Aditama Computer, producing information system of service acceptance to improve services in Aditama Computer.Methodelogi Research used is a waterfall, modeling objects using UML.For coding using PHP MySQL, and Android client. The result is an information system to facilitate the service to the customers.
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Kelch, Lois W. y 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, n.º 3 (diciembre de 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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Williams, John G. "Perception of a Throwing Action from Point-Light Demonstrations". Perceptual and Motor Skills 67, n.º 1 (agosto de 1988): 273–74. http://dx.doi.org/10.2466/pms.1988.67.1.273.
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80 adults (40 men and 40 women) aged 18 to 25 yr. and 80 boys aged 14 to 15 yr. observed a throwing action presented in point-light form at a frontoparallel viewpoint either as a video film or computer simulation of the actor. The display consisted of the relative motion of the wrist, elbow, and shoulder joints of the throwing arm. Subjects were asked to report what they observed. The action was recognised immediately by 68% of all subjects, and this value increased to 90% with one more viewing of the demonstration. Response was virtually the same for both types of display, and there were no differences between adults and children. The results were similar to those from other studies from which researchers have concluded that kinematic information alone is sufficient to permit perception of fundamental patterns of movement.
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Lencova, B. y G. Wisselink. "The Added Value of Graphical Input and Display for Electron Lens Design". Proceedings, annual meeting, Electron Microscopy Society of America 48, n.º 1 (12 de agosto de 1990): 190–91. http://dx.doi.org/10.1017/s0424820100179701.
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Recent progress in computer technology enables the calculation of lens fields and focal properties on commonly available computers such as IBM ATs. If we add to this the use of graphics, we greatly increase the applicability of design programs for electron lenses. Most programs for field computation are based on the finite element method (FEM). They are written in Fortran 77, so that they are easily transferred from PCs to larger machines.The design process has recently been made significantly more user friendly by adding input programs written in Turbo Pascal, which allows a flexible implementation of computer graphics. The input programs have not only menu driven input and modification of numerical data, but also graphics editing of the data. The input programs create files which are subsequently read by the Fortran programs. From the main menu of our magnetic lens design program, further options are chosen by using function keys or numbers. Some options (lens initialization and setting, fine mesh, current densities, etc.) open other menus where computation parameters can be set or numerical data can be entered with the help of a simple line editor. The "draw lens" option enables graphical editing of the mesh - see fig. I. The geometry of the electron lens is specified in terms of coordinates and indices of a coarse quadrilateral mesh. In this mesh, the fine mesh with smoothly changing step size is calculated by an automeshing procedure. The options shown in fig. 1 allow modification of the number of coarse mesh lines, change of coordinates of mesh points or lines, and specification of lens parts. Interactive and graphical modification of the fine mesh can be called from the fine mesh menu. Finally, the lens computation can be called. Our FEM program allows up to 8000 mesh points on an AT computer. Another menu allows the display of computed results stored in output files and graphical display of axial flux density, flux density in magnetic parts, and the flux lines in magnetic lenses - see fig. 2. A series of several lens excitations with user specified or default magnetization curves can be calculated and displayed in one session.
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Colijn, H. O. "Spectraplot: A PC-based spectrum translation and display program". Proceedings, annual meeting, Electron Microscopy Society of America 46 (1988): 918–19. http://dx.doi.org/10.1017/s042482010010665x.
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Many labs today wish to transfer data between their EDS systems and their existing PCs and minicomputers. Our lab has implemented SpectraPlot, a low- cost PC-based system to allow offline examination and plotting of spectra. We adopted this system in order to make more efficient use of our microscopes and EDS consoles, to provide hardcopy output for an older EDS system, and to allow students to access their data after leaving the university.As shown in Fig. 1, we have three EDS systems (one of which is located in another building) which can store data on 8 inch RT-11 floppy disks. We transfer data from these systems to a DEC MINC computer using “SneakerNet”, which consists of putting on a pair of sneakers and running down the hall. We then use the Hermit file transfer program to download the data files with error checking from the MINC to the PC.
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Ghadirian, Hajar, Keyvan Salehi y Ahamd Fauzi Mohd Ayub. "Assessing the Effectiveness of Role Assignment on Improving Students' Asynchronous Online Discussion Participation". International Journal of Distance Education Technologies 17, n.º 1 (enero de 2019): 31–51. http://dx.doi.org/10.4018/ijdet.2019010103.
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Taking into account prior research suggesting a lack of student participation in online discussions, this study examines the influence of peer moderator (PM) role assignment on students' participation and that of their peers' participation in online discussions. Eighty-four participants operated in a moderator role, reciprocally. Moreover, the study examines the differences in the level of e-moderation supports enacted by PMs of high-and low-density online discussions. Online participation was assessed using log files of seven-week discussions and social network analysis techniques. Quantitative content analysis was applied with online interaction transcripts of PMs for two groups of online discussions. The results indicated that students in the PM role reached significantly higher level of participation quantity and patterns and their non-posting participation significantly influenced all indicators of group participation. Further, high-and low-density online discussions differed significantly with regards to frequency of PMs' e-moderation supports.
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Altomare, Angela, Corrado Cuocci, Carmelo Giacovazzo, Anna Moliterni y Rosanna Rizzi. "QUALX: a computer program for qualitative analysis using powder diffraction data". Journal of Applied Crystallography 41, n.º 4 (16 de julio de 2008): 815–17. http://dx.doi.org/10.1107/s0021889808016956.
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QUALXis a new computer program for phase identification using powder diffraction data. It uses the Powder Diffraction File database, where a search for the phase best matching the experimental powder diffraction pattern is carried out. The program is characterized by a high level of automation: the traditional steps aimed at interpreting the experimental pattern before the search (background estimation, peak search, peak intensity evaluation) are executed automatically. The search may be carried outviaconstraints on compound name and/or chemical elements. In addition, several graphical options requested interactively enable the user to perform zero point correction evaluation,Kα2stripping and smoothing. The program, written in Fortran95 and C++, runs on PCs under the Windows XP operating system. It is supported by a very effective graphical interface.
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Dinh, T. H. N., E. Martincic, E. Dufour-Gergam y P. Y. Joubert. "Mechanical Characterization of PDMS Films for the Optimization of Polymer Based Flexible Capacitive Pressure Microsensors". Journal of Sensors 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/8235729.
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This paper reports on the optimization of flexible PDMS-based normal pressure capacitive microsensors dedicated to wearable applications. The operating principle and the fabrication process of such microsensors are presented. Then, the deformations under local pressure of PDMS thin films of thicknesses ranging from 100 μm to 10 mm are studied by means of numerical simulations in order to foresee the sensitivity of the considered microsensors. The study points out that, for a given PDMS type, the sensor form ratio plays a major role in its sensitivity. Indeed, for a given PDMS film, the expected capacitance change under a 10 N load applied on a 1.7 mm radius electrode varies from a few percent to almost 40% according to the initial PDMS film thickness. These observations are validated by experimental characterizations carried out on PDMS film samples of various thicknesses (10 μm to 10 mm) and on actual microsensors. Further computations enable generalized sensor design rules to be highlighted. Considering practical limitations in the fabrication and in the implementation of the actual microsensors, design rules based on computed form ratio optimization lead to the elaboration of flexible pressure microsensors exhibiting a sensitivity which reaches up to10%/N.
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FRETSCHNER, REINHOLD, WOLFGANG BLEICHER, ALEXANDRA HEININGER y KLAUS UNERTL. "Patient Data Management Systems in Critical Care". Journal of the American Society of Nephrology 12, suppl 1 (febrero de 2001): S83—S86. http://dx.doi.org/10.1681/asn.v12suppl_1s83.
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Abstract. Electronic patient data management systems (PDMS) were clinically used for the first time in the 1970s. Their purpose was to automatically document vital parameters sampled by monitors and to replace handwritten medical files. Because of the continuous development of computer technology, however, demands on PDMS have increased immensely. PDMS are currently expected to assist clinicians at every level of intensive care, i.e., at the strategic level of physicians' orders and prescriptions, at the operational level, and at the administrative level. In 1994, a PDMS (CareVue; Agilent Technologies) was installed and further developed in the anesthesiologic intensive care unit of the university hospital in Tübingen. The goals of this article were to describe the current demands on PDMS, to communicate our experiences in implementing a PDMS, to list the costs of purchasing and maintaining the system, and to report on the acceptance among physicians and nursing personnel. This article may assist new users in planning for, purchasing, and implementing a PDMS.
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OHZONO, TAKUYA, NOBUKO FUKUDA, TAKEHIRO NISHIKAWA y MASATSUGU SHIMOMURA. "IMPRINT OF HONEYCOMB PATTERN ON PDMS ELASTOMER". International Journal of Nanoscience 01, n.º 05n06 (octubre de 2002): 569–73. http://dx.doi.org/10.1142/s0219581x02000681.
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Recently a method that utilizes the condensation of micrometer-sized water droplets on evaporating solutions of polymers has been reported for the preparation of porous thin films with fine hexagonal periodicity, honeycomb films. Here we report a method for imprinting a honeycomb pattern on the PDMS (poly(dimethyl siloxane)) elastomer. For the preparation of the honeycomb film, a benzene solution of amphiphilic copolymer was cast at high atmospheric humidity. On the film the PDMS precursor was poured and cured. The cured PDMS with the honeycomb film was peeled from the slide glass. The PDMS was rinsed with the solvent to remove the honeycomb film. The exposed PDMS surface was observed using SEM and AFM. The pattern-imprinted PDMS surface can be used as a template for patterning of materials, which are difficult to produce a honeycomb pattern by the conventional method described above. Here, we show some examples of such honeycomb-originated structures composed of polymers or nanoparticles, which were fabricated using the pattern-imprinted PDMS. The present study shows an example of the secondary uses of the self-organized structures for the cost-saving micro/nanofabrication of various materials.
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Freivalds, Andris. "Use of the Tablet PC for Human Factors Instruction". Proceedings of the Human Factors and Ergonomics Society Annual Meeting 51, n.º 7 (octubre de 2007): 531–35. http://dx.doi.org/10.1177/154193120705100705.
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Tablet PCs are laptop computers that allow the instructor to use a special stylus to write digital ink on the screen which then can be saved to an electronic file. This offers human factors courses several nice features: 1) cleaner, better, more interactive lectures; 2) quicker and more effective student feedback; 3) the ability to save and make available complete lecture materials to students; 4) audio and video integration; 5) more collaborative team work; and 6) eventually, a paper-less classroom. In addition, the tablet PC is a natural start to the development of on-line courses. Student surveys indicated a very high satisfaction with the use of the tablet PC.
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Islam, Tanzima Zerin, Kathryn Mohror, Saurabh Bagchi, Adam Moody, Bronis R. de Supinski y Rudolf Eigenmann. "McrEngine: A Scalable Checkpointing System Using Data-Aware Aggregation and Compression". Scientific Programming 21, n.º 3-4 (2013): 149–63. http://dx.doi.org/10.1155/2013/341672.
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High performance computing (HPC) systems use checkpoint-restart to tolerate failures. Typically, applications store their states in checkpoints on a parallel file system (PFS). As applications scale up, checkpoint-restart incurs high overheads due to contention for PFS resources. The high overheads force large-scale applications to reduce checkpoint frequency, which means more compute time is lost in the event of failure. We alleviate this problem through a scalable checkpoint-restart system, mcrEngine. McrEngine aggregates checkpoints from multiple application processes with knowledge of the data semantics available through widely-used I/O libraries, e.g., HDF5 and netCDF, and compresses them. Our novel scheme improves compressibility of checkpoints up to 115% over simple concatenation and compression. Our evaluation with large-scale application checkpoints show that mcrEngine reduces checkpointing overhead by up to 87% and restart overhead by up to 62% over a baseline with no aggregation or compression.
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Naaji, Antoanela, Marius Popescu y Monica Ciobanu. "Software Solutions for Recovery of the Lost Data from Mobile Phones, Tablets and Computers, Used in the Educational Process". WSEAS TRANSACTIONS ON ADVANCES in ENGINEERING EDUCATION 18 (26 de mayo de 2021): 47–53. http://dx.doi.org/10.37394/232010.2021.18.5.
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It is already known that during the pandemic the educational process took place most of the time online or at most in a hybrid format. Within these activities, there are situations in which, in addition to the online teaching, it is necessary to conduct and store courses, homework or other teaching materials on various types of devices (phones, tablets or computers). When they are disconnected incorrectly or become corrupt, errors occur, and the information may no longer be accessed. In the case of the Windows operating system if the disconnection of the PCs is performed by the users in an erroneous way, after reconnecting the storage devices, they still have access to the data. In the case of the Linux operating system if the disconnection is not the professional one, most of the time there are chances that at reconnection, the data that was saved on that storage device cannot be any longer accessed. The current paper presents two methods for recovering the lost information: one for the educational data recovery, and one for recovering contacts, which are often important in the communication process. These methods involve techniques for saving educational information/contacts from destroyed, corrupt or inaccessible storage devices when they cannot be used normally. A first application, proposed for PCs, uses the Master File Table and tries to retrieve information, by using an algorithm implemented in the C++ language, with multiple advantages over the algorithms found in similar applications. The second software application is developed for the Android platform and it was created to make a backup to the contacts from the smartphone and save them in a text (.txt) file. The software applications presented in the paper are useful especially for those who own computers and phones from older generations.
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Okada, Kenji y Ploenpit Boochathum. "DS5: direct-searcher automatic system version 5 for small molecules running on Windows personal computers". Journal of Applied Crystallography 38, n.º 5 (15 de septiembre de 2005): 842–46. http://dx.doi.org/10.1107/s0021889805018571.
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DS5(Direct-Searcher Automatic System Version 5), for the crystal structure analysis of small molecules on personal computers (PCs), is a new program that integrates more than 18 main programs, subroutines and mathematics/graphic libraries of theDS*SYSTEM4package. Three features of note are: compatibility of input instruction data with theSHELXseries, control of calculation sequences by subprogram names that are prepared by the user, and graphical output on the PC display with Postscript/HPGL files. All functions ofDS5are inherited fromDS*SYSTEM4.
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Hopper, Douglas A., Troy T. Meinke y Virginia S. Store. "786 PB 436 COMPARING ROSE RESPONSES TO VARIOUS ENVIRONMENTS USING THE ROSESIM COMPUTER GROWTH MODEL". HortScience 29, n.º 5 (mayo de 1994): 545e—545. http://dx.doi.org/10.21273/hortsci.29.5.545e.
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The computer simulation model ROSESIM is based on `Royalty' rose (Rosa hybrida L.) growth response to 15 unique treatment combinations of photosynthetic photon flux (PPF), day temperature (DT), and night temperature (NT) under constant growth chamber conditions. Environmental factors are assumed constant over an entire day, but set points may vary over the duration of the crop. Anticipated values for factors may be read from an ASCII file, allowing a variety of strategies to be modeled and compared. A Valentine's Day crop senario compared 2 management strategies for crop development time and flower quality: [1] constant 24/17.1 DT/NT for the entire crop, or [2] 15 days warm 30/20C DT/NT to promote bud break, 10 days 20/15C DT/NT to promote stem caliper and leaf size, 10 days 25/18C DT/NT to promote bud development, and remaining time to flower 20/15C DT/NT to enhance flower size and color. PPF was increased gradually over crop time as would occur naturally for Dec. to Feb. Strategy [2] had longer stems (63 vs. 50 cm), similar stem and leaf dry weights, but less flower bud dry weight (1.0 vs. 1.6 g), while flowering 2 days earlier (41 vs. 43 days after pinch). c:\pm4\ash94h.pm 4
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Wang, Chunwei, Lina Yu, Huixian Chang, Sheng Shen, Fang Hou y Yingwei Li. "Application Research of File Fingerprint Identification Detection Based on a Network Security Protection System". Wireless Communications and Mobile Computing 2020 (30 de noviembre de 2020): 1–14. http://dx.doi.org/10.1155/2020/8841417.
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A DLP (data loss prevention) system usually arranges network monitors at the network boundary to perform network traffic capture, file parsing, and strategy matching procedures. Strategy matching is a key process to prevent corporate secret-related documents from leaking. This paper adopts the document fingerprint similarity detection method based on the SimHash principle and customizes the KbS (Keyword-based SimHash) fingerprint, PbS (Paragraph-based SimHash) fingerprint, and SoP (SimHash of Paragraph) fingerprint, three different feature extraction SimHash algorithms for strategy matching to detect. The parsed unstructured data is stored as a file type in.txt format, and then a file fingerprint is generated. Matching the established sensitive document library to calculate the Hamming distance between the fingerprints, the Hamming distance values under different modification degrees are summarized. The experimental results reveal that the hybrid algorithmic strategy matching rules with different levels and accuracy are established. This paper has a reference role for the leakage prevention research of enterprise sensitive data.
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Huang, Stanley Y. B., Shih-Chin Lee y Yue-Shi Lee. "Constructing an Adoption Model of Proactive Environmental Strategy: A Novel Quantitative Method of the Multi-Level Growth Curve Model". Mathematics 9, n.º 16 (17 de agosto de 2021): 1962. http://dx.doi.org/10.3390/math9161962.
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To fill in the literature flaws that have not been detected in previous studies, this research, therefore, examines the driving factors of proactive environmental strategy (PES). First, this research proposes how corporate social responsibility (CSR) predicts the agricultural company’s PES through the intermediary mechanism of green organization identification (GOI) of the top management team (TMT) according to symbolic context and theory of high-level echelon, to solve the first gap in exploring what factors can drive the PES. Second, this research proposes a multi-level growth curve model (MGCM) to solve how individuals adjust their behavioral intentions over time according to their translation and understanding of their use environment, because past studies consist of almost cross-sectional properties. Third, past research has also neglected the multi-level framework, leading to hierarchical reasoning bias. Therefore, this research believes that the MGCM can fill in the multi-level gap. Finally, this research collected 400 TMT employees from 100 different agricultural companies in Taiwan in three-stage time for six months. The results show that CSR will significantly lead to more growth in GOI, and more growth in GOI will lead to more growth in PES adoption. The research results can not only advance the agricultural sustainability literature but also serve as a guide for agricultural companies to implement PES.
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Bolosky, William J., John R. Douceur, David Ely y Marvin Theimer. "Feasibility of a serverless distributed file system deployed on an existing set of desktop PCs". ACM SIGMETRICS Performance Evaluation Review 28, n.º 1 (junio de 2000): 34–43. http://dx.doi.org/10.1145/345063.339345.
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Nishino, Ryo, Seiji Aoyagi, Masato Suzuki, Atsushi Ueda, Yuki Okumura, Tomokazu Takahashi, Ryota Hosomi et al. "Development of Artificial Skin Using Keratin Film for Evaluation of Puncture Performance of Microneedle". Journal of Robotics and Mechatronics 32, n.º 2 (20 de abril de 2020): 351–61. http://dx.doi.org/10.20965/jrm.2020.p0351.
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Humans do not feel pain when bitten by mosquitos; therefore, we have attempted to develop a microneedle that mimics the puncturing mechanism of mosquitos. We have quantitatively evaluated the puncturing performance of the developed microneedle by puncturing an artificial skin made from polydimethylsiloxane (PDMS), a kind of silicon rubber. Unlike the mono-layered PDMS, however, animal skin including human skin is structured to have a hard stratum corneum, epidermis and dermis over soft subcutaneous tissue. In this paper, we propose an artificial skin having a two-layered hard/soft structure, constructed from PDMS with a human-hair-derived keratin film adhered onto the top surface. We evaluated the hardness of the keratin film (Young’s modulus) and found that it could qualitatively simulate the hard layers of the skin including the stratum corneum. The artificial skin we developed reproduced the following phenomena: the decrease in resistance force of animal skin at the point when the needle penetrates the surface followed by variation in resistance due to the stick-slip phenomenon as the needle penetrates more deeply.
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Kim, Taeuk, Awais Khan, Youngjae Kim, Preethika Kasu y Scott Atchley. "NUMA-Aware Thread Scheduling for Big Data Transfers over Terabits Network Infrastructure". Scientific Programming 2018 (2018): 1–8. http://dx.doi.org/10.1155/2018/4120561.
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The evergrowing trend of big data has led scientists to share and transfer the simulation and analytical data across the geodistributed research and computing facilities. However, the existing data transfer frameworks used for data sharing lack the capability to adopt the attributes of the underlying parallel file systems (PFS). LADS (Layout-Aware Data Scheduling) is an end-to-end data transfer tool optimized for terabit network using a layout-aware data scheduling via PFS. However, it does not consider the NUMA (Nonuniform Memory Access) architecture. In this paper, we propose a NUMA-aware thread and resource scheduling for optimized data transfer in terabit network. First, we propose distributed RMA buffers to reduce memory controller contention in CPU sockets and then schedule the threads based on CPU socket and NUMA nodes inside CPU socket to reduce memory access latency. We design and implement the proposed resource and thread scheduling in the existing LADS framework. Experimental results showed from 21.7% to 44% improvement with memory-level optimizations in the LADS framework as compared to the baseline without any optimization.
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Adiga, Samyuktha, Dominic Aebi y David L. Bryce. "EFGShield — A program for parsing and summarizing the results of electric field gradient and nuclear magnetic shielding tensor calculations". Canadian Journal of Chemistry 85, n.º 7-8 (1 de julio de 2007): 496–505. http://dx.doi.org/10.1139/v07-069.
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A computer program (EFGShield) is described that simplifies and summarizes the output from electric field gradient (EFG) and nuclear magnetic shielding tensor calculations performed independently using existing quantum chemical software. In addition to summarizing tensor magnitudes according to conventions commonly used by solid-state NMR spectroscopists, the program provides Euler angles relating the orientations of the EFG and shielding tensor principal axis systems (PAS). An atomic coordinate file is generated that also contains dummy atoms representing the orientations of the EFG and shielding tensor PASs in the molecular framework. We demonstrate the functionality of the program using calculations of the chlorine EFG and shielding tensors for strontium chloride dihydrate and calcium chloride dihydrate. Several models of the chloride environment in these compounds are tested, including those where point charges are used to represent the extended three-dimensional lattices within the self-consistent charge field perturbation approach. The results highlight both the shortcomings and successes of traditional localized orbital-based basis sets in the description of the NMR properties of extended systems. We anticipate that EFGShield will be a useful tool for spectroscopists using quantum chemical software to aid in the interpretation of experimental data.Key words: quantum chemical calculations, computer program, electric field gradient tensor, quadrupolar coupling constant, nuclear magnetic shielding tensor, Euler angles, alkaline earth chloride hydrates.
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Scagliotti, M., M. Salvato, M. De Crescenzi, P. Castrucci, N. G. Kovalchuk, I. V. Komissarov, S. L. Prischepa et al. "2D Carbon Material/Silicon Heterojunctions for Fast Response Self-Powered Photodetector". International Journal of Nanoscience 18, n.º 03n04 (2 de abril de 2019): 1940088. http://dx.doi.org/10.1142/s0219581x1940088x.
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Photodetectors (PDs) based on single-walled carbon nanotube film/silicon and graphene/silicon heterojunctions have been realized for fast applications. We investigated the response of the PDs to femtosecond pulsed laser using a three-electrode configuration for photoconductive operations. Both junction PDs exhibit rise times of some nanoseconds, detecting light from ultraviolet (275[Formula: see text]nm) to infrared (1150[Formula: see text]nm). Applying a gate voltage [Formula: see text], the rise time decreases down to about 1[Formula: see text]ns, making our devices comparable to most commercial PDs.
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Liu, Chang, Wankai Shi, Lang Xu y Kun Liu. "A Novel Approach to Calculating the Transmission Accuracy of a Cycloid-Pin Gear Pair Based on Error Tooth Surfaces". Applied Sciences 11, n.º 18 (17 de septiembre de 2021): 8671. http://dx.doi.org/10.3390/app11188671.
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Transmission error (TE) and backlash are important parameters used to evaluate the transmission accuracy of cycloid-pin drives. Existing calculation methods are mostly based on two-dimensional tooth profile models, and these methods ignore the influence of some abnormal meshing phenomena caused by profile modifications (PMs), manufacturing errors (MEs), and assembly errors (AEs), such as the instantaneous mesh-apart of tooth pairs and the eccentric load on the tooth surface. To fill this gap, a novel approach to accurately calculating the TE and backlash of a cycloid-pin gear pair based on the error tooth surfaces is proposed, and its feasibility and effectiveness are validated by comparison with the theoretical analyses and the results from the literature. Based on this, the effects of the PMs, MEs, and AEs on the transmission accuracy are studied, which will be helpful in optimizing the tooth profile design of a cycloid gear and the tolerance allocation during the installation of a gear pair. The proposed method is also expected to provide accurate error excitation data for the dynamic analysis of cycloid-pin drives.
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Abasheva, Marina P. "Slavic fantasy yesterday and today". Philological Sciences. Scientific Essays of Higher Education, n.º 2 (marzo de 2021): 39–46. http://dx.doi.org/10.20339/phs.2-21.039.
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The article is devoted to the study of the evolution and transformation of the Slavic fantasy genre on Russian soil: from its inception in the 1990s to the present day. Fantasy on the material of the events of the time of the pro-Slavic unity in Russia gained popularity and special significance. They solved the compensatory tasks of re-identification for the mass consciousness: with the collapse of the Soviet empire, the post-Soviet man needed a positive identity, which manifested itself in turning to the “great past” in predominantly heroic images. The subsequent historization and contextualization of the genre, its transformation from a fairy tale to a quasi-historical narrative was largely due to the influence of the ideologies spread by folk history. In the 2000s, Slavonic fantasy employs the mechanisms of routine, serialization, reduction, and convergence. In the 2010s, Slavic fantasy continues to be part of the national myth, gaining new genre forms — a film, a computer game, etc. However, new examples of the genre (in particular, Andrei Rubanov’s novel “Finist the Clear Falcon” of 2019) broadcast nostalgic moods in the aesthetic spirit retroutopia. If at the turn of the 1990–2000s Slavic fantasies became close to a historical adventure novel, now their rapprochement with a fairy tale is indicative.
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Hwang, Jeong-Wook, Seung-Jin Jung, Il Heo, Hyun-A. Son, Jong-Ho Kim, Kang-Kyun Wang y Yong-Rok Kim. "Study of Singlet Oxygen Dynamics on Silicon Polymer Matrix". Journal of Analytical Methods in Chemistry 2019 (19 de febrero de 2019): 1–6. http://dx.doi.org/10.1155/2019/2584686.
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We report a detailed analysis of singlet oxygen generated from the photofunctional polymer film (PFPF) matrix which is the silicone polymer film (PDMS) embedded with a photosensitizer. Activation and deactivation dynamics of singlet oxygen generated from PFPFs were investigated with time-resolved phosphorescence spectroscopy. The singlet oxygen generated from PFPFs was dissipated into three different regions of the polymer matrix; the inside (component A), the surface (component B), and the outside (component C). According to the deactivation dynamics of singlet oxygen in the polymer matrix, the components B and C are expected to be more important for various applications.
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Mariello, Massimo, Elisa Scarpa, Luciana Algieri, Francesco Guido, Vincenzo Mariano Mastronardi, Antonio Qualtieri y Massimo De Vittorio. "Novel Flexible Triboelectric Nanogenerator based on Metallized Porous PDMS and Parylene C". Energies 13, n.º 7 (2 de abril de 2020): 1625. http://dx.doi.org/10.3390/en13071625.
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Triboelectric nanogenerators (TENGs) have recently become a powerful technology for energy harvesting and self-powered sensor networks. One of their main advantages is the possibility to employ a wide range of materials, especially for fabricating inexpensive and easy-to-use devices. This paper reports the fabrication and preliminary characterization of a novel flexible triboelectric nanogenerator which could be employed for driving future low power consumption wearable devices. The proposed TENG is a single-electrode device operating in contact-separation mode for applications in low-frequency energy harvesting from intermittent tapping loads involving the human body, such as finger or hand tapping. The novelty of the device lies in the choice of materials: it is based on a combination of a polysiloxane elastomer and a poly (para-xylylene). In particular, the TENG is composed, sequentially, of a poly (dimethylsiloxane) (PDMS) substrate which was made porous and rough with a steam-curing step; then, a metallization layer with titanium and gold, deposited on the PDMS surface with an optimal substrate–electrode adhesion. Finally, the metallized structure was coated with a thin film of parylene C serving as friction layer. This material provides excellent conformability and high charge-retaining capability, playing a crucial role in the triboelectric process; it also makes the device suitable for employment in harsh, wet environments owing to its inertness and barrier properties. Preliminary performance tests were conducted by measuring the open-circuit voltage and power density under finger tapping (~2 N) at ~5 Hz. The device exhibited a peak-to-peak voltage of 1.6 V and power density peak of 2.24 mW/m2 at ~0.4 MΩ. The proposed TENG demonstrated ease of process, simplicity, cost-effectiveness, and flexibility.
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Czernek, Krystian y Stanisław Witczak. "Hydrodynamics of Two-Phase Gas-Very Viscous Liquid Flow in Heat Exchange Conditions". Energies 13, n.º 21 (31 de octubre de 2020): 5709. http://dx.doi.org/10.3390/en13215709.
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This paper presents the results of analyses of the impact of heat transfer conditions on the hydrodynamics of downward co-current annular flow in vertical tubes of very viscous liquid and gas. The research was conducted within the range of gas velocities of 0–30.0 m/s and liquid velocities of 0.001–0.254 m/s, while the viscosity was in the unprecedented range of 0.046–3.5 Pas. The research demonstrates that the volume and nature of the liquid waves with various amplitudes and frequencies arising on the surface of the film are relative to the flow rate and viscosity of the gas phase. At the same time, we found that, under the condition of liquid cooling, an increase in viscosity resulted in the formation of a smooth interface whereas, under the conditions where the liquid is heated at the end of the channel section, a greater number of capillary waves were formed. This research resulted in the development of new dependencies which take into account the influence of selected thermal and flow parameters (including mass fraction) on the values of volumes specific to very viscous liquid film flows. These dependencies improve the accuracy of calculation by 8–10% and are fully applicable to the description of the performance of an apparatus with a hydraulically generated liquid film.
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Park, Chan-Yong, Sung-Hee Park, Soo-Jun Park, Sun-Hee Park y Chi-Jung Hwang. "ProteinVista: A Fast Molecular Visualization System Using Microsoft Direct3D". Journal of Nanoscience and Nanotechnology 8, n.º 9 (1 de septiembre de 2008): 4522–26. http://dx.doi.org/10.1166/jnn.2008.ic78.
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Many tools have been developed to visualize protein and molecular structures. Most high quality protein visualization tools use the OpenGL graphics library as a 3D graphics system. Currently, the performance of recent 3D graphics hardware has rapidly improved. Recent high-performance 3D graphics hardware support Microsoft Direct3D graphics library more than OpenGL and have become very popular in personal computers (PCs). In this paper, a molecular visualization system termed ProteinVista is proposed. ProteinVista is well-designed visualization system using the Microsoft Direct3D graphics library. It provides various visualization styles such as the wireframe, stick, ball and stick, space fill, ribbon, and surface model styles, in addition to display options for 3D visualization. As ProteinVista is optimized for recent 3D graphics hardware platforms and because it uses a geometry instancing technique, its rendering speed is 2.7 times faster compared to other visualization tools.
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Shiau, Steven J. H., Yu-Chiang Huang, Ching-Hsuan Yen, Yu-Chin Tsai, Chen-Kai Sun, Jer-Nan Juang, Chi-Yo Huang, Ching-Chun Huang y Shih-Kun Huang. "A Novel Massive Deployment Solution Based on the Peer-to-Peer Protocol". Applied Sciences 9, n.º 2 (15 de enero de 2019): 296. http://dx.doi.org/10.3390/app9020296.
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: The BitTorrent (BT) is a peer-to-peer (P2P) file sharing protocol that was developed approximately 20 years ago, is becoming increasingly popular, and has been widely accepted. The BT-based mass deployment system can be used to improve performance and scalability that cannot be achieved by the unicasting, broadcasting, and multicasting protocols. However, when the BT-based system is applied in massive deployments, a major issue related to insufficient temporary storage space to store the whole system image before deploying needs to be resolved. Such problems arose because the system is deployed to the disk space, meaning that it cannot be used for temporary storage. Therefore, a novel BT-based solution that can remove the limitations caused by the insufficient temporary storage issue is proposed. The BT-based mass deployment system was designed by using the file system blocks transferring (FSBT) mechanism. The receiver of the FSBT mechanism can obtain the blocks of the file system from other peers. Then, those blocks will be written directly to raw disks or partitions. The sender of the FSBT mechanism can read the blocks of file systems directly from raw disks or partitions. Then, the blocks can be sent to other peers. This approach solves the insufficient temporary storage issue. The novel BT-based mass deployment system was tested and verified for the configuration consisting of at most 32 personal computers (PCs). To demonstrate the achievable performance of the novel BT-based system, comparisons were made between the novel program and the traditional multicast solutions, as well as other solutions for mass deployment. The proposed BT solution can be much faster than the multicast solution when deploying 11 machines or more. The experimental results demonstrated the feasibility and superior performance of the proposed system. Furthermore, performance comparisons of the proposed BT-based mass deployment system versus other solutions demonstrated the feasibility and efficiency of the proposed solution. In the future, the BT parameters can be further optimized, and the simultaneous read and write features can be implemented to improve the deployment performance. In addition, the BT-based mass deployment system can serve as the basis for the development of other mass deployment systems.
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SHAHZAD, FAISAL, MARKUS WITTMANN, MORITZ KREUTZER, THOMAS ZEISER, GEORG HAGER y GERHARD WELLEIN. "A SURVEY OF CHECKPOINT/RESTART TECHNIQUES ON DISTRIBUTED MEMORY SYSTEMS". Parallel Processing Letters 23, n.º 04 (diciembre de 2013): 1340011. http://dx.doi.org/10.1142/s0129626413400112.
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The road to exascale computing poses many challenges for the High Performance Computing (HPC) community. Each step on the exascale path is mainly the result of a higher level of parallelism of the basic building blocks (i.e., CPUs, memory units, networking components, etc.). The reliability of each of these basic components does not increase at the same rate as the rate of hardware parallelism. This results in a reduction of the mean time to failure (MTTF) of the whole system. A fault tolerance environment is thus indispensable to run large applications on such clusters. Checkpoint/Restart (C/R) is the classic and most popular method to minimize failure damage. Its ease of implementation makes it useful, but typically it introduces significant overhead to the application. Several efforts have been made to reduce the C/R overhead. In this paper we compare various C/R techniques for their overheads by implementing them on two different categories of applications. These approaches are based on parallel-file-system (PFS)-level checkpoints (synchronous/asynchronous) and node-level checkpoints. We utilize the Scalable Checkpoint/Restart (SCR) library for the comparison of node-level checkpoints. For asynchronous PFS-level checkpoints, we use the Damaris library, the SCR asynchronous feature, and application-based checkpointing via dedicated threads. Our baseline for overhead comparison is the naïve application-based synchronous PFS-level checkpointing method. A 3D lattice-Boltzmann (LBM) flow solver and a Lanczos eigenvalue solver are used as prototypical applications in which all the techniques considered here may be applied.
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Altomare, Angela, Nicola Corriero, Corrado Cuocci, Aurelia Falcicchio, Anna Moliterni y Rosanna Rizzi. "QUALX2.0: a qualitative phase analysis software using the freely available database POW_COD". Journal of Applied Crystallography 48, n.º 2 (21 de febrero de 2015): 598–603. http://dx.doi.org/10.1107/s1600576715002319.
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QUALX2.0is the new version ofQUALX, a computer program for qualitative phase analysis by powder diffraction data. The previous version ofQUALXwas able to carry out phase identification by querying the PDF-2 commercial database. The main novelty ofQUALX2.0is the possibility of querying also a freely available database, POW_COD. POW_COD has been built up by starting from the structure information contained in the Crystallography Open Database (COD). The latter is a growing collection of diffraction data, freely downloadable from the web, corresponding to inorganic, metal–organic, organic and mineral structures.QUALX2.0retains the main capabilities of the previous version: (a) automatically estimating and subtracting the background; (b) locating the experimental diffraction peaks; (c) searching the database for single-phase pattern(s) best matching to the experimental powder diffraction data; (d) taking into account suitable restraints in the search; (e) performing a semi-quantitative analysis; (f) enabling the change of default choices and strategiesviaa user-friendly graphic interface. The advances ofQUALX2.0with respect toQUALXinclude (i) a wider variety of types of importable ASCII file containing the experimental diffraction pattern and (ii) new search–match options. The program, written in Fortran and C++, runs on PCs under the Windows operating system. The POW_COD database is exported in SQLite3 format.
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Kim, Kyung-Tae, Seung-Han Kang, Seung-Ji Nam, Chan-Yong Park, Jeong-Wan Jo, Jae-Sang Heo y Sung-Kyu Park. "Skin-Compatible Amorphous Oxide Thin-Film-Transistors with a Stress-Released Elastic Architecture". Applied Sciences 11, n.º 12 (14 de junio de 2021): 5501. http://dx.doi.org/10.3390/app11125501.
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A highly reliable reverse-trapezoid-structured polydimethylsiloxane (PDMS) is demonstrated to achieve mechanically enhanced amorphous indium-gallium-zinc oxide (a-IGZO) thin-film-transistors (TFTs) for skin-compatible electronics. Finite element analysis (FEA) simulation reveals that the stress within a-IGZO TFTs can be efficiently reduced compared to conventional substrates. Based on the results, a conventional photolithography process was employed to implement the reverse-trapezoid homogeneous structures using a negative photoresist (NPR). Simply accessible photolithography using NPR enabled high-resolution patterning and thus large-area scalable device architectures could be obtained. The a-IGZO TFTs on the reverse-trapezoid-structured PDMS exhibited a maximum saturation mobility of 6.06 cm2V−1s−1 under a drain bias voltage of 10 V with minimal strain stress. As a result, the proposed a-IGZO TFTs, including stress-released architecture, exhibited highly enhanced mechanical properties, showing saturation mobility variation within 12% under a strain of 15%, whereas conventional planar a-IGZO TFTs on PDMS showed mobility variation over 10% even under a 1% strain and failed to operate beyond a 2% strain.
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Tsai, Han-Kuan A. y Marc Madou. "Microfabrication of Bilayer Polymer Actuator Valves for Controlled Drug Delivery". JALA: Journal of the Association for Laboratory Automation 12, n.º 5 (octubre de 2007): 291–95. http://dx.doi.org/10.1016/j.jala.2007.06.010.
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Drug delivery is still a challenging mission in therapeutic treatment. Research on biomedical micro-electromechanical systems (BioMEMS) has led to a diverse range of microsystems for curative applications. This paper introduces miniaturized controlled valves and drug reservoirs for drug delivery systems. Detailed microfabrication processes, optimized package, and optical/electrochemical detection of the proposed device are described. The release mechanism of the device is controlled by a bilayer actuator valve, which consists of a conductive polymer polypyrrole (PPy) film and a thin metal gold (Au) layer. The PPy layer is electrochemically polymerized on the Au layer. Therefore, further miniaturization of the device is possible through microfabrication of the Au layer. A polydimethylsiloxane (PDMS) package is also introduced to prevent the flap from being blocked by the surrounding tissue of the human body. In addition, a parylene coating is applied to minimize the permeability of PDMS. The release process is then verified by an optical and electrochemical detection system.
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Alam, Md Shahbaz, Chandan Kumar Ghosh, Nillohit Mukherjee y Sk Faruque Ahmed. "Nanostructure Evolution and Optical Properties of Silver Doped Diamond Like Carbon Thin Film on Soft Polymer". Advanced Science Letters 24, n.º 8 (1 de agosto de 2018): 5731–36. http://dx.doi.org/10.1166/asl.2018.12187.
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Effect of silver doping on nanostructure evolution and optical properties of diamond like carbon films synthesized on elastomeric polymer of poly-dimenthylsiloxane (PDMS) and silicon substrate via radio frequency reactive sputtering technique were studied in detail. Due to difference in elastic moduli of PDMS substrate and silver doped diamond like carbon (Ag:DLC) films, a well-defined nanostructure wrinkle pattern have formed on PDMS for releasing the strain energy induced by residually compressed stress in Ag:DLC film. X-ray photoelectron spectroscopy analysis revealed the different bonding information between silver and carbon and the chemical composition of the Ag:DLC films. The introduction of silver in the DLC matrix, decreased the optical transparency as well as the optical band gap from 3.97 to 3.25 eV with a variation of Ag at.% from 0 to 9.2 in the films. The Urbach parameter calculated from the transmitance data, increased with the increase of the Ag doping percentage.
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Konarev, Petr V., Vladimir V. Volkov, Anna V. Sokolova, Michel H. J. Koch y Dmitri I. Svergun. "PRIMUS: a Windows PC-based system for small-angle scattering data analysis". Journal of Applied Crystallography 36, n.º 5 (8 de septiembre de 2003): 1277–82. http://dx.doi.org/10.1107/s0021889803012779.
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A program suite for one-dimensional small-angle scattering data processing running on IBM-compatible PCs under Windows 9x/NT/2000/XP is presented. The main program,PRIMUS, has a menu-driven graphical user interface calling computational modules to perform data manipulation and analysis. Experimental data in binary OTOKO format can be reduced by calling the programSAPOKO, which includes statistical analysis of time frames, averaging and scaling. Tools to generate the angular axis and detector response files from diffraction patterns of calibration samples, as well as binary to ASCII transformation programs, are available. Several types of ASCII files can be directly imported intoPRIMUS, in particular, sasCIF or ILL-type files are read without modification.PRIMUSprovides basic data manipulation functions (averaging, background subtraction, merging of data measured in different angular ranges, extrapolation to zero sample concentration,etc.) and computes invariants from Guinier and Porod plots. Several external modules coupled withPRIMUSviapop-up menus enable the user to evaluate the characteristic functions by indirect Fourier transformation, to perform peak analysis for partially ordered systems and to find shape approximations in terms of three-parametric geometrical bodies. For the analysis of mixtures,PRIMUSenables model-independent singular value decomposition or linear fitting if the scattering from the components is known. An interface is also provided to the general non-linear fitting programMIXTURE, which is designed for quantitative analysis of multicomponent systems represented by simple geometrical bodies, taking shape and size polydispersity as well as interparticle interference effects into account.
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Guleria, Navneet. "Determining Antecedents of Intention to Adopt Goods and Service Tax Network". International Journal of E-Adoption 12, n.º 1 (enero de 2020): 30–41. http://dx.doi.org/10.4018/ijea.2020010103.
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With the changing worldwide economic scenario, there occurs a need to structure new tax reforms especially for a developing country like India. With this ideation, the Indian government introduced the goods and service tax (GST) in order to conceptualise a common tax system. However, with digitalization transforming every service from offline to online mode, the government developed a not-for-profit website, GST network (GSTN), where citizens can smoothly and securely file their returns. Since the concept is new, studying the GSTN adoption by considering technology acceptance model (TAM) and unified theory of adoption and use of technology (UTAUT) variables becomes a novel approach. The article considers perceived ease of use, perceived usefulness, perceived risk, social influence, and facilitating conditions as exogenous variables whereas intention to adopt GSTN is considered as endogenous one. A partial least square (PLS) path modelling approach is applied on a survey data in order to validate the hypothesised model.
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Rogers, Kathryn E. "Story First, Technology Second". Advances in Archaeological Practice 8, n.º 4 (noviembre de 2020): 428–33. http://dx.doi.org/10.1017/aap.2020.37.
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OVERVIEWCombining the strengths of “traditional” documentary filmmaking (as “creative treatments of actualité”) with the immersive power of interactive digital technologies (from 360° video to VR to data mining to algorithms), i-Docs can transform audiences into participants, co-creators, and collaborators in nonfiction storytelling, allowing them to not only explore and experience a story on their own terms but to remix, share, and contribute their own content to a collective story. i-Docs are cross- and multiplatform, screening across cinema, computers, smartphones, and gallery installations. Showcased at leading film festivals, increasingly adopted by broadcasters—including PBS, Al Jazeera, and BBC—and critically acclaimed from the Webbys and the Pulitzers to Cannes, the i-Doc sector is set to boom. After a close reading of two i-Docs, Hunt for the Inca Ruins (2017) and Saydnaya (2016), I consider the potential of i-Docs to resolve archaeologists’ concerns about misrepresentation, accuracy, information quality, (co)authorship, and crediting original research in documentary storytelling. I also examine the sector's shortcomings of unstable production pathways, funding sources, technologies, and difficulties assessing impact. I propose that archaeologists should engage proactively with the i-Doc sector if we wish to avoid the pitfalls previously encountered in film and factual TV and make the most of this new format.
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Chao, Zoe, Steve Borrelli, Bikalpa Neupane y Joseph Fennewald. "Understanding user experience in bring your own device spaces in the library". Performance Measurement and Metrics 20, n.º 3 (11 de noviembre de 2019): 201–12. http://dx.doi.org/10.1108/pmm-07-2019-0027.
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Purpose The purpose of this paper is to triangulate qualitative and quantitative data with existing data to inform on the function and user experience of a newly created the “News Library,” and, further, to inform on the viability of “bring your own device spaces” (BYOD) in meeting the computing needs of Penn State University Park students through a multi-dimensional study. Design/methodology/approach This study leverages several methodologies for data collection, including observation, survey, flip chart prompts, interviews and focus groups. Findings Findings suggest that the News Library accommodates users’ social needs. However, it does not accommodate their communal needs well. The majority of students at the Penn State University Park campus, own laptops and bring them to the library when they intend to study. Personal device usage is preferable to library-provided computers per a familiarity with their personal device, access to personal files and independence of workspace. Research limitations/implications As this is a case study, the findings are not generalizable. This study was conducted in one library, on one campus at a 24-campus institution with over 30 libraries. Originality/value The mixed-methods study provides multiple views into user behaviors and expectations. The authors propose guidelines for informing the design of BYOD spaces.
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Aupy, Guillaume, Brice Goglin, Valentin Honoré y Bruno Raffin. "Modeling high-throughput applications for in situ analytics". International Journal of High Performance Computing Applications 33, n.º 6 (22 de mayo de 2019): 1185–200. http://dx.doi.org/10.1177/1094342019847263.
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With the goal of performing exascale computing, the importance of input/output (I/O) management becomes more and more critical to maintain system performance. While the computing capacities of machines are getting higher, the I/O capabilities of systems do not increase as fast. We are able to generate more data but unable to manage them efficiently due to variability of I/O performance. Limiting the requests to the parallel file system (PFS) becomes necessary. To address this issue, new strategies are being developed such as online in situ analysis. The idea is to overcome the limitations of basic postmortem data analysis where the data have to be stored on PFS first and processed later. There are several software solutions that allow users to specifically dedicate nodes for analysis of data and distribute the computation tasks over different sets of nodes. Thus far, they rely on a manual resource partitioning and allocation by the user of tasks (simulations, analysis). In this work, we propose a memory-constraint modelization for in situ analysis. We use this model to provide different scheduling policies to determine both the number of resources that should be dedicated to analysis functions and that schedule efficiently these functions. We evaluate them and show the importance of considering memory constraints in the model. Finally, we discuss the different challenges that have to be addressed to build automatic tools for in situ analytics.
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Park, Jae Sung, Rachel Cabosky, Zhijiang Ye y Iltai (Isaac) Kim. "Investigating the mechanical and optical properties of thin PDMS film by flat-punched indentation". Optical Materials 85 (noviembre de 2018): 153–61. http://dx.doi.org/10.1016/j.optmat.2018.08.051.
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Wu, Xiaohong y Ivan Ka Wai Lai. "The acceptance of augmented reality tour app for promoting film-induced tourism: the effect of celebrity involvement and personal innovativeness". Journal of Hospitality and Tourism Technology 12, n.º 3 (23 de junio de 2021): 454–70. http://dx.doi.org/10.1108/jhtt-03-2020-0054.
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Purpose The purpose of this paper is to examine the factors that influence mainland Chinese film tourists’ behavioural intention in accepting an augmented reality (AR) feature film character-related tour APP (an IfilmAR-tour-APP) based on an extension of unified theory of acceptance and use of technology (UTAUT) model. Design/methodology/approach Systematic sampling was used to collect data; 360 valid questionnaires were collected from mainland Chinese film tourists visiting Macau. Partial least squares structural equation modelling (PLS-SEM) was applied to analyse the data. Findings The findings indicated that performance expectancy, effort expectancy, social influence, celebrity involvement and personal innovativeness have a significant impact on mainland Chinese film tourists’ behavioural intention in accepting the IfilmAR-tour-APP, while facilitating conditions do not significantly affect tourists’ behavioural intention. Furthermore, the study revealed that effort expectancy, celebrity involvement and personal innovativeness positively influence performance expectancy in the use of an IfilmAR-tour-APP. Practical implications The findings of this study provide implications for AR tour APP developers which will help them to enhance their designs, and for the governments of tourist destinations to formulate their promotion strategies in developing niche tourism. Originality/value This study extended the application of UTAUT to tourism technology by introducing two personality traits in the context of AR tour APPs for film-induced tourism. This research contributes to niche tourism research by linking niche tourism and tourism technology.
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Mukti, Mousumi Hasan, Quazi Saad-Ul-Mosaher y Khalil Ahammad. "Bengali Longhand Character Recognition using Fourier Transform and Euclidean Distance Metric". European Journal of Engineering Research and Science 3, n.º 7 (31 de julio de 2018): 67. http://dx.doi.org/10.24018/ejers.2018.3.7.831.
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Handwritten Character Recognition (HCR) is widely considered as a benchmark problem for pattern recognition and artificial intelligence. Text matching has become a popular research area in recent days as it plays a great part in pattern recognition. Different techniques for recognizing handwritten letters and digits for different languages have already been implemented throughout the world. This research aims at developing a system for recognizing Bengali handwritten characters i.e. letters and digits using Fourier Transform (FT) and Euclidean distance measurement technique. A dataset with 800 handwritten character texts from different people has been developed for this purpose and these character texts are converted to their equivalent printed version to implement this research. MATLAB has been used as an implementation tool for different preprocessing techniques like cropping, resizing, flood filling, thinning etc. Processed text images are used as input to the system and they are converted to FT. Handwritten character of different person may be of different style and angle. The input dataset is collected from various types of people including age level from 5 to 70 years, from different professions like pre-schooling students, graduate students, doctors, teachers and housewives. So, to match the input image with printed dataset (PDS) each printed data is rotated up to 450 left and right and then their FT is computed. The Euclidean distance among the input image and the rotated 30 images of each printed text are taken as intermediate distance set. The minimum value of Euclidean distance for a character is used to recognize the targeted character from the intermediate set. Wrongly detected texts are not thrown away from the system rather those are stored in the named character or digits file so that those can be used in future for deep learning. By following the proposed methodology, the research has achieved 98.88% recognition accuracy according to the input and PDS.
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Kim, Se-Jung, Tanyoung Kim, Dongsoo Kim y Byeong-Kwon Ju. "Layer-by-Layer Assembled Nano-Composite Multilayer Gas Barrier Film Manufactured with Stretchable Substrate". Applied Sciences 11, n.º 13 (22 de junio de 2021): 5794. http://dx.doi.org/10.3390/app11135794.
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Most gas barrier films produce cracks that lead to a significant loss of gas barrier integrity when strain is applied. In order to fabricate stretchable gas barrier films with low water permeability and high endurance after stretching, we used polydiallydimethylammonium (PDDA) mixed with graphene oxide (GO) and poly (vinyl alcohol) (PVA) mixed with montmorillonite (MMT). These films were manufactured by layer-by-layer assembly on an Ecoflex/polydimethylsiloxane (PDMS) substrate with pre-strain applied. A total of 30 layers of PDDA (GO)/PVA (MMT) coated on the substrate exhibited a low water vapor transmission rate of 2.5 × 10−2 g/m2 day after 100 cycles of stretching (30% strain). In addition, they exhibited a high light transmittance of 86.54%. Thus, the prepared stretchable gas barrier film has potential applications as a barrier film in transparent and stretchable electronic devices.