Articoli di riviste: "Technology bundle"

1

Miller, N. J., T. W. Griffin, J. Bergtold, I. A. Ciampitti e A. Sharda. "Farmers’ Adoption Path of Precision Agriculture Technology". Advances in Animal Biosciences 8, n. 2 (1 giugno 2017): 708–12. http://dx.doi.org/10.1017/s2040470017000528.

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Precision agriculture technologies have been adopted individually and in bundles. A sample of 348 Kansas Farm Management Association farm-level observations provides insight into technology adoption patterns of precision agriculture technologies. Estimated transition probabilities shed light on how adoption paths lead to bundling of technologies. Three information intensive technologies were assigned to one of eight possible bundles, and the sequence of adoption was examined using Markov transition processes. The probability that farms remain with the same bundle or transition to a different bundle by the next time period are reported. Farms with the complete bundle of all three technologies were likely to persist with their current technology.

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Amin, Abu Bony, Syed Muhammad Shakil e Muhammad Sana Ullah. "A Theoretical Modeling of Adaptive Mixed CNT Bundles for High-Speed VLSI Interconnect Design". Crystals 12, n. 2 (27 gennaio 2022): 186. http://dx.doi.org/10.3390/cryst12020186.

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The aroused quest to reduce the delay at the interconnect level is the main urge of this paper, so as to come across a configuration of carbon nanotube (CNT) bundles, namely, squarely packed bundles of mixed CNTs. The demonstrated approach in this paper makes the mixed CNT bundle adaptable to adopt for high-speed very-large-scale integration (VLSI) interconnects with technology shrinkage. To reduce the delay of the proposed configuration of the mixed CNT bundle, the behavioral change of resistance (R), inductance (L), and capacitance (C) has been observed with respect to both the width of the bundle and the diameter of the CNTs in the bundle. Consequently, the performance of the modified bundle configuration is compared with a previously developed configuration, namely, squarely packed bundles of dimorphic MWCNTs in terms of propagation delay and crosstalk delay at local-, semiglobal-, and global-level interconnects. The proposed bundle configuration is, ultimately, enacted as the better one for 32-nm and 16-nm technology nodes, and is suitable for 7-nm nodes as well.

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Li, Lei, Li Chen e Jin Chao Li. "Numerical Generation Technology for Three-Dimensional Structure of High-Performance Fiber Bundle". Advanced Materials Research 332-334 (settembre 2011): 1024–27. http://dx.doi.org/10.4028/www.scientific.net/amr.332-334.1024.

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The three-dimensional structure of high-performance fiber bundles are of paramount importance for their study in lateral compression mechanism. Modeling of their true morphologies is still fields of focus research, yet to be exhausted. In this paper, ANSYS were utilized to develop three-dimensional numerical model of fiber bundle on the computer in the way of simulation. This approach is enabled by the finite element packages. It is possible to simulate the true material morphology directly. The key issues of the simulation are to keep fiber volume fraction always a constant value and to ensure no intersection between fibers. This work can simulate the stochastic generation-growth of high-performance fiber bundle and reproduce morphology of fiber bundle on micron scale well and thereby provide reliable information for the study on the lateral compression mechanism in the future.

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Griffin, Terry W., Noah J. Miller, Jason Bergtold, Aleksan Shanoyan, Ajay Sharda e Ignacio A. Ciampitti. "Farm’s Sequence of Adoption of Information-intensive Precision Agricultural Technology". Applied Engineering in Agriculture 33, n. 4 (2017): 521–27. http://dx.doi.org/10.13031/aea.12228.

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Abstract. Precision agriculture (PA) has been commercially available for decades, however only specific technologies have been readily adopted. The overall goal of this study was to provide information of the historical changes (from 2000 to 2016), current status of PA utilization, and sales expectations in the next time period. Within this overarching objective, specific goals included 1) determining the specific technologies that farmers adopt and 2) estimating the probability of transitioning from one bundle of PA technologies to another. The three information-intensive technologies included: 1) yield monitor (YM) with or without GNSS 2) variable rate (VR) application of inputs, and 3) precision soil sampling (PSS). Combinations of these three technologies in addition to a possible “no technology adopted” response resulted in eight categories of PA technology bundles. Each year, farms were classified as having one of these eight possible bundles of PA technology. Adoption of PA technologies has increased over time, with the use of only YMs and the bundle of all three PA technologies (YM, PSS, and VR) as the two primary bundles being adopted. When only VR was adopted, there was a 47% probability that the farm would add a YM by next year. When a farm used YM, VR, and PSS, there was a 99% probability that a farm would continue using the bundle in the following year. The results are useful for farmers, extension professionals, and policymakers to understand prior adoption paths for bundles of PA technology. Future steps can connect this database on adoption of PA technology with farm meta-descriptors such as acreage, type of crop, rotation, other relevant management practices, and financial variables so to better understand how farmers are integrating technologies into their farming operations. Keywords: Adoption, Information-intensive, Markov chain, Precision agriculture, Sequential, Site specific, Soil sampling, Transition probability, Variable rate, Yield monitor.

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Abdul Kadir, Kureshi, e Mohd Hasan. "Performance Optimization and Comparison of CNT Interconnect with Copper at VDSM Technology". INTERNATIONAL JOURNAL OF MANAGEMENT & INFORMATION TECHNOLOGY 6, n. 2 (15 ottobre 2013): 826–34. http://dx.doi.org/10.24297/ijmit.v6i2.3812.

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As the CMOS process technology continues to scale, standard copper (Cu) interconnect will become a major hurdle for the best performance at very deep submicron (VDSM) technology node. The carbon nanotube (CNT) bundles have potential to provide an attractive solution for the higher resistivity and electromigration problems faced by traditional copper interconnects in VDSM technology node. This paper presents important guidelines to minimize the resistance, capacitance and inductance of a mixed CNT bundle interconnect for achieving best performance. The performance of mixed CNT bundle and copper is then compared at local and global interconnects level at 22nm technology node. HSPICE simulations carried out using Berkeley predictive technology model (BPTM) at an operating frequency of 1GHz, shows that for interconnect length of 1000um, the mixed CNT and optimized CNT (CNT_Opt) bundles are 1.98X and 2.20X faster, 74% and 84% more energy efficient respectively than the Copper interconnects.

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Fox, Ross J., Christopher D. Harner, Masataka Sakane, Gregory J. Carlin e Savio L.-Y. Woo. "Determination of the In Situ Forces in the Human Posterior Cruciate Ligament Using Robotic Technology". American Journal of Sports Medicine 26, n. 3 (maggio 1998): 395–401. http://dx.doi.org/10.1177/03635465980260030901.

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We examined the in situ forces in the posterior cruciate ligament as well as the force distribution between its anterolateral and posteromedial bundles. Using a robotic manipulator in conjunction with a universal force-moment sensor system, we applied posterior tibial loads from 22 to 110 N to the joint at 0° to 90° of knee flexion. The magnitude of the in situ force in the posterior cruciate ligament and its bundles was significantly affected by knee flexion angle and posterior tibial loading. In situ forces in the posterior cruciate ligament ranged from 6.1 6.0 N under a 22-N posterior tibial load at 0° of knee flexion to 112.3 28.5 N under a 110-N load at 90°. The force in the posteromedial bundle reached a maximum of 67.9 31.5 N at 90° of knee flexion, and the force in the anterolateral bundle reached a maximum of 47.8 23.0 N at 60° of knee flexion under a 110-N load. No significant differences existed between the in situ forces in the two bundles at any knee flexion angle. This study provides insight into the knee flexion angle at which each bundle of the posterior cruciate ligament experiences the highest in situ forces under posterior tibial loading. This information can help guide us in more accurate graft placement, fixation, and tensioning, and serve as an assessment of graft performance.

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Kuo, Chih-Wei. "Hard or Soft Science? Conceptualizing Educational Technology through a Lexical Bundle Analytical Approach". Education and Linguistics Research 3, n. 1 (9 aprile 2017): 43. http://dx.doi.org/10.5296/elr.v3i1.10503.

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An ongoing discussion on the disciplinary nature of educational technology has been taking place for years. Some view this discipline from the perspective of instructional design and implementation, whereas others conceptualize it from the perspective of media, tool, and system. This study examined educational technology from the perspective of language use by empirically investigating a special sequence of words, referred to as lexical bundles, in educational technology research articles. It aims to capture the distinctive nature of educational technology as soft technology and examine possible associations of educational technology with relevant disciplines. Employing a text analysis tool of AntConc 3.4.3, the researcher compiled a corpus encompassing 323 research articles from six journals with approximately 2.1 million words to identify lexical bundles. All identified bundles were analyzed and further compared with past relevant studies based on the number of different bundles, the content of bundles, and the grammatical structure of bundles. It was found that educational technology as an inter-discipline resembles much more soft science fields in terms of the content and structural categories of bundles. This study not only contributes to a better conceptual understanding of the nature of educational technology but offers a pedagogically beneficial bundle list for informing academic writing instruction in this field.

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Barankova, Inna I., Uliana V. Mikhailova e Olga B. Kalugina. "Induction Heating Technology for Steel Wire Processing". Solid State Phenomena 284 (ottobre 2018): 610–14. http://dx.doi.org/10.4028/www.scientific.net/ssp.284.610.

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This article discusses the induction heating application features in metallurgical industry for previously unused objects, such as wire coils and wire rod bundles. The analysis of international trends and a forecast of the induction heating application shows a steady expansion of the induction technologies in the metallurgical industry. The article considers the advantages of induction heating in comparison to other competitive technologies. Heat treatment in electrotechnological induction plants is determined by the interconnected electric and thermophysical processes taking place in them, the complex nature of the internal heat sources distribution, the dependence of the distribution pattern of the induction plant on the temperature of the products being processed. It is shown that the investigation results of the induction heating method influence the temperature and time factors in the formation of the structure, the increase in the uniformity of heating, and the quality of the heat treatment of steel wire and wire rod buntle, taking into account the stated technological task. The efficiency estimation of application of medium and high-frequency induction heating of steel wire of various diameters is given. Evaluation of the efficiency improving of the induction heating device, when the heat treatment simultaneous multiple strands of steel wire of equal diameter, united in a bundle, is given.

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Bernauer, Otto. "Optical waveguides using fiber bundle technology". Optik & Photonik 6, n. 2 (maggio 2011): 47–48. http://dx.doi.org/10.1002/opph.201190331.

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Heeler, Roger M., Adam Nguyen e Cheryl Buff. "Bundles = discount? Revisiting complex theories of bundle effects". Journal of Product & Brand Management 16, n. 7 (6 novembre 2007): 492–500. http://dx.doi.org/10.1108/10610420710834940.

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Mangano, Mario S., Alberto De Gobbi, Francesco Beniamin, Claudio Lamon, Matteo Ciaccia e Luigino Maccatrozzo. "Robot-assisted nerve-sparing radical prostatectomy using near-infrared fluorescence technology and indocyanine green: initial experience". Urologia Journal 85, n. 1 (febbraio 2018): 29–31. http://dx.doi.org/10.5301/uj.5000244.

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Introduction: Indocyanine green (ICG) is a fluorescent molecule that provokes detectable photon emission. The use of ICG with near-infrared (NIR) imaging system (Akorn, Lake Forest, IL) has been described during robotic partial nephrectomy (RAPN) as an adjunctive means of identifying renal artery and parenchymal perfusion. We propose the use of the ICG with NIR fluorescence during laparoscopic robot-assisted radical prostatectomy (RARP), to identify the benchmark artery improving the preservation of neurovascular bundle and to improve the visualization of the vascularization and then the hemostasis. Methods: From April 2015 to February 2016, 62 patients underwent to RARP in our Urology Unit. In 26 consecutive patients, in the attempt to have a better visualization of neurovascular bundles, we used to inject ICG during the procedure. We evaluated the percentage of identification of neurovascular bundles using NIR fluorescence. Then, we evaluated complications related to injection of ICG and operative time differences between RARP with and without ICG injection performed by the same surgeons. Results: We identified prostatic arteries and neurovascular bundles using NIR fluorescence technology in all patients (100%). There was not any increase in the operative time compared with RARP without ICG injection performed by the same surgeons. Complications related to injection of ICG did not occurred. Conclusions: In our experience, even if on a limited number of patients, the application of ICG with NIR fluorescence during RARP is helpful to identify the benchmark artery of neurovascular bundle.

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Yeo, A., e A. G. Fane. "Performance of individual fibers in a submerged hollow fiber bundle". Water Science and Technology 51, n. 6-7 (1 marzo 2005): 165–72. http://dx.doi.org/10.2166/wst.2005.0635.

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Hollow fiber membranes are popular as they have a high specific membrane area. To take advantage of this, it is necessary to pack the fibers into closely packed bundles. The fibers in different positions in the bundle behave differently as they are exposed to different hydrodynamic conditions. In this paper, a ‘model’ bundle of 9 fibers was tested in a setup which provides flow measurement from individual fibers and the same suction pressure in each fiber. The parameters studied were packing density, cross flow velocity, feed concentration and bubbling. It was found that a low cross flow velocities, high pressures and high feed concentrations, the surrounded (center) fiber performed very poorly compared to the fibers at the corner and the sides. Under these conditions, the overall performance of the bundle was much worse that of a single fiber.

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Kuruvilla, Nisha, e J. P. Raina. "Impact of Bundle Structure on Performance of on-Chip CNT Interconnects". Journal of Nanotechnology 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/217519.

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CNTs are proposed as a promising candidate against copper in deep submicron IC interconnects. Still this technology is in its infancy. Most available literatures on performance predictions of CNT interconnects, have focused only on interconnect geometries using segregated CNTs. Yet during the manufacturing phase, CNTs are obtained usually as a mixture of single-walled and multi-walled CNTs (SWCNTs and MWCNTs). Especially in case of SWCNTs; it is usually available as a mixture of both Semi conducting CNTs and metallic CNTs. This paper attempts to answer whether segregation is inevitable before using them to construct interconnects. This paper attempt to compare the performance variations of bundled CNT interconnects, where bundles are made of segregated CNTs versus mixed CNTs, for future technology nodes using electrical model based analysis. Also a proportionate mixing of different CNTs has been introduced so as to yield a set of criteria to aid the industry in selection of an appropriate bundle structure for use in a specific application with optimum performance. It was found that even the worst case performance of geometries using a mixture of SWCNTs and MWCNTs was better than copper. These results also reveal that, for extracting optimum performance vide cost matrix, the focus should be more on diameter controlled synthesis than on segregation.

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Sun, Lili, Grigorios Panagakos e Glenn Lipscomb. "Effect of Packing Nonuniformity at the Fiber Bundle–Case Interface on Performance of Hollow Fiber Membrane Gas Separation Modules". Membranes 12, n. 11 (13 novembre 2022): 1139. http://dx.doi.org/10.3390/membranes12111139.

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High-fidelity simulations of momentum and mass transfer within a hollow fiber gas separation membrane module are here reported. The simulations capture the potential detrimental effects of poor fiber packing at the bundle–case interface on fluid distribution and performance. Results are presented for both circular and planar fiber bundles. The length over which bundle–case gaps affects flow is determined. The length increases dramatically with increasing fiber packing fraction. As the packing fraction approaches 0.6, the impact extends over the entire bundle diameter for small modules (<1000 fibers). The results clearly demonstrate the detrimental effect of poor packing along the case and can be used to develop module manufacturing guidelines. To reduce computational costs, an equivalent planar bundle module approximation is developed. The approximate simulations agree well with results from full 3-D simulations and can reduce computational costs without sacrificing fidelity.

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Brocato, Carmelo Maria. "Technological Jump in Aluminium Ingot Production". Materials Science Forum 630 (ottobre 2009): 243–50. http://dx.doi.org/10.4028/www.scientific.net/msf.630.243.

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Abstract Usual production of modern cast houses includes semi products and re-melt products. Billets, slabs and rod belong to the family of semi products, while T-bars, sows and ingots are incorporated in the category of re-melt products. Re-melt forms have been developed to be easily transported and easily processed in locations even far away from the cast house where these have been produced. Unlike sow and T-bars, ingots need to be stacked in bundles and securely strapped to allow safe and easier handling and transportation. Yet, the ingots can be processed one-by-one by small users or can be loaded into the melting furnace bundle-by-bundle. The shape and weight of pure aluminium ingots of the old prior art were determined with two aims: maximization of the production rate and minimization of the production costs: for many years heavy ingots have been produced by pouring molten aluminium into a chain of open top moulds. The traditional complex shape of the ingots was intended to facilitate de-moulding operations and bundle piling. For the above reasons, the most common ingot weight worldwide has ranged, until now, from 22.5 to 23.5kg. Now a new technology launched by Continuus-Properzi offers bigger hourly production rates and handy, safe and sound ingots of 30 pounds (13.6kg) as well as more compact and stable bundles. These advantages are paralleled by low maintenance costs and a very high yield near to 90%. With similar investment and production costs the new technology can give a 30% yearly production increase and winning ingot characteristics.

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Barreiros, Michele de Pinho, Carla Monique Lavareda Costa, Anne Caroline Gonçalves Lima, Paula Carolina Lima de Aviz, Andressa Torres Oliveira, Elane Magalhães Oliveira, Josiane Macedo de Oliveira Rupf, Regina Racquel dos Santos Jacinto, Karina Faine da Silva Freitas e Heliana Helena de Moura Nunes. "A utilização do escore de alerta obstétrico modificado por enfermeiros no acolhimento com classificação de risco: um relato de experiência". Research, Society and Development 11, n. 12 (23 settembre 2022): e533111234534. http://dx.doi.org/10.33448/rsd-v11i12.34534.

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Este estudo objetiva descrever a experiência acerca da utilização do Escore de Alerta Obstétrico Modificação (MEOWS), na identificação de deterioração materna precoce e o acionamento do pacote de intervenções (Bundles) em um hospital materno-infantil no Estado do Pará. Utilizou-se como metodologia um estudo descritivo, do tipo relato de experiência, referente ao período trabalhado como enfermeira obstetra em uma maternidade de referência. A partir da análise dos relatos obtidos, selecionou-se os pontos chaves da pesquisa, os quais possibilitaram a escolha da temática que seria trabalhada, e, assim, iniciar a teorização do estudo. Diante disso, buscou-se nas bases de dados artigos, livros e páginas eletrônicas acerca da temática em questão, a fim de aumentar a compreensão do assunto. Nos resultados tem-se a discussão acerca dos tópicos: o que é o MEOWS? Como funciona o fluxo de atendimento no A&CRO, com a utilização do Escore de Alerta Obstétrico e o acionamento de bundles? Bundle de SEPSE, Bundle de SHEM e Bundle de SHEG. Portanto, o estudo mostrou que a utilização do MEOWS associada ao acionamento do pacote de intervenções, garantem assistência imediata a gestante/puérpera, promovendo um desfecho favorável a deterioração clínica identificada.

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Singh, Karmjit, e Balwinder Raj. "Influence of temperature on MWCNT bundle, SWCNT bundle and copper interconnects for nanoscaled technology nodes". Journal of Materials Science: Materials in Electronics 26, n. 8 (17 maggio 2015): 6134–42. http://dx.doi.org/10.1007/s10854-015-3193-y.

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Liang, Jun, Chunjing Wu, Hang Ping, Ming Wang e Weizhong Tang. "Surface Pretreatment and Fabrication Technology of Braided Carbon Fiber Rope Aluminum Matrix Composite". Metals 10, n. 9 (9 settembre 2020): 1212. http://dx.doi.org/10.3390/met10091212.

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Carbon fiber is mainly distributed in the shape of short fibers and continuous fiber bundles as the reinforcing phase in metal matrix composites, and it is seldom studied as braided rope shaped to reinforce the matrix. For this paper, the pretreatment and the surface metallization of the carbon fiber braided rope were studied. Besides, the casting experiments of aluminum-based carbon fiber braided rope composites were performed without external pressure. XPS analysis shows that the surface of the carbon fiber braided rope treated with ultrasonic degumming contains many hydrophilic oxygen-containing functional groups C-OH, C=O, COOH, etc., which can effectively improve the wettability between the carbon fiber braided rope and the aluminum matrix. SEM, EDS, and XRD were used to analyze the micromorphology and structure of the copper plating on the surface of carbon fiber braided ropes obtained from different pH plating solutions. When pH is 12, a continuous, uniform, and dense layer was formed on the surface of carbon fiber braided ropes. In addition, copper coating can effectively inhibit the formation of Al4C3 brittle phase. Finally, the mechanical properties results indicated that the tensile strength of the carbon fiber bundle and carbon fiber rope reinforced composite materials were 69 MPa and 83 MPa, respectively, indicating that the reinforcing effect of the carbon fiber rope is better than that of the carbon fiber bundle.

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Shin, Hyeon-Shic, Michael Callow, Seyedehsan Dadvar, Young-Jae Lee e Z. Andrew Farkas. "User Acceptance and Willingness to Pay for Connected Vehicle Technologies: Adaptive Choice-Based Conjoint Analysis". Transportation Research Record: Journal of the Transportation Research Board 2531, n. 1 (gennaio 2015): 54–62. http://dx.doi.org/10.3141/2531-07.

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The preferences of drivers and their willingness to pay (WTP) for connected vehicle (CV) technologies were estimated with the use of adaptive choice-based conjoint (ACBC) analysis, the newest such method available. More than 500 usable surveys were collected through an online survey. Respondents were asked to choose from variously priced CV technology bundles (e.g., collision prevention, roadway information system). The study found that the acceptance level of the CV technologies was high, given that an absolute majority of survey respondents had the highest preferences for the most comprehensive technology bundle in each attribute. However, a comparison of the average importance of each attribute, including bundle prices, implied that price would be an important constraint and would influence CV deployment rates. At the attribute level, collision prevention technology received the highest importance score (i.e., the safety benefits most appealed to drivers). The ACBC analysis seemed to mimic well the trade-offs that people would consider in their actual purchasing decisions. The difference between WTP and self-explicated prices obtained before preferences were estimated was statistically significant (i.e., participants chose bundles after they considered product attributes and prices). This finding also affirmed that the ACBC analysis was a more appropriate method than the direct questioning methods used in past studies. Finally, certain socioeconomic characteristics were positively related to WTP. Those respondents that were knowledgeable about CV technologies and showed more innovativeness had higher WTP as well.

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Kracík, Petr, e Jiří Pospíšil. "Influence of Underpressure on Heat Transfer and Temperature Field at Sprinkled Tube Bundle". Applied Mechanics and Materials 832 (aprile 2016): 200–206. http://dx.doi.org/10.4028/www.scientific.net/amm.832.200.

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Sprinkled tube bundles with a thin liquid film flowing over them are used in various technology processes where it is necessary to separate the vapour and liquid phases quickly and efficiently at low temperatures with a corresponding decrease of pressure around the tube bundle. In ideal conditions water boils at the whole surface of an exchanger, but in practice it must be considered that in original spots of contact between water and the exchanger wall the water will not boil at the tubes' surface but the cooling liquid will merely be heated-up. The article focuses on these processes. Experiments have been carried out at a tube bundle consisting of copper tubes of 12 mm diameter placed horizontally one above another that have been heated by water of an average input temperature approx. 40 °C. This bundle has been sprinkled by cool water at temperature of 15 °C and pressure has been gradually decreased using an exhauster at constant flow rates of heating and falling film liquid inside an experimental device's chamber. Was tested flow of sprinkled liquid in the range of 4-9 liters per minute, which corresponds to the range of Reynolds numbers of about 300 to 600 [-]. The result of these experiments is a studied heat transfer coefficient at the surface of a sprinkled tube bundle during heating of the cooling liquid with a transition into boiling of the liquid at the bundle. At a flow of 8 liters per minute were acquired sequence thermal camera FLIR SC 660. After evaluation of the sequences were generated maps of the temperature field according to decreasing the pressure and its standard deviation. From the contour graphs can evaluate the thermal stability of the liquid film on the spray tube bundle.

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Li, Zhong Wei, Chao Ma, Chun Li Liu, Cong Jun Wang, Kai Zhong e Yu Sheng Shi. "PMP-Based Micro-3D Dental Measuring Technology". Applied Mechanics and Materials 192 (luglio 2012): 310–17. http://dx.doi.org/10.4028/www.scientific.net/amm.192.310.

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Based on the structured light measurement principle, digital fringes projection technology and phase-shifting measuring technology, specific to the 3D profile of some tiny objects like teeth, in this paper we proposes a 3D scanning system which was directly used for intraoral dental measurement utilizing the merits of flexible and long distance signal transmission of the fiber image bundle. The structured light is projected out from DLP LightCommander produced by Texas Instruments Company, shrunk via telecentric imaging lens, conveyed in fiber image bundle. Utilizing the transformational relation between single-camera and projector, afterwards, the 3D profile of teeth is obtained by reconstructing the acquisition images in electronic endoscope. The feasibility of this system has been testified in our experiments. It satisfies the requirements of miniaturization, directness and flexibility; expands the scope of application of micro-3D measurement with structured light in dental clinical practice.

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Romberg, Stefan, e Rainer Lienhart. "Bundle min-Hashing". International Journal of Multimedia Information Retrieval 2, n. 4 (4 settembre 2013): 243–59. http://dx.doi.org/10.1007/s13735-013-0040-x.

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Zhong, Li Sheng, Yun Hua Xu, Xin Cheng Liu, Fang Xia Ye, Jing Lai Tian e Xiao Jie Liu. "Infiltration Casting and In Situ Fabrication of (Fe,Cr)₇C₃ Particulates Bundle – Reinforced Iron Matrix Composites". Advanced Materials Research 284-286 (luglio 2011): 273–76. http://dx.doi.org/10.4028/www.scientific.net/amr.284-286.273.

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The method of infiltration casting plus heat treatment process employing chromium wires and cast iron applied to in-situ synthesized (Fe,Cr)7C3 particulates bundle reinforced iron matrix composites. The phase analysis, microstructure, microhardness and wear-resistance of composite were observed and measured. The results show that it is possible to fabricate (Fe,Cr)7C3 particulates bundle reinforced iron matrix composite produced by this technology, and a special structure which called particulates bundle was fabricated. (Fe,Cr)7C3 particulates bundle were distributed in the forms of granular, lath-shaped and hexagon-shaped in the particulates bundle. The macrohardness of particulates bundle was 52 HRC, and the relative wear resistance of the composites is 2.3—23 times higher than that of the cast iron.

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Takiguchi, Hiroki, Masahiro Furuya e Takahiro Arai. "Temperature Profile Measurement in Simulated Fuel Assembly Structure with Wire-Mesh Technology". Science and Technology of Nuclear Installations 2018 (13 novembre 2018): 1–9. http://dx.doi.org/10.1155/2018/2631084.

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When light water reactor (LWR) is subject to a cold shutdown, it needs to be cooled with pure water or seawater to prevent the core melting. To precisely evaluate the cooling characteristics in the fuel assembly, a measurement method capable of installing to the fuel assembly structure and determining the temperature distribution with high temporal resolution, high spatial resolution, and in multidimension is required. Furthermore, it is more practical if applicable to a pressure range up to the rated pressure 16 MPa of a pressurized water reactor (PWR). In this study, we applied the principle of the wire-mesh sensor technology used in the void fraction measurement to the temperature measurement and developed a simulated fuel assembly (bundle) test loop with installing the temperature profile sensors. To investigate the measurement performance in the bundle test section, it was confirmed that a predetermined temperature calibration line with respect to time-average impedance was calculated and became a function of temperature. To evaluate the followability of measurement in a transient temperature change process, we fabricated a 16 × 16 wire-mesh sensor device and measured the hot-water jet-mixing process into the cold-water pool in real time and calculated the temperature profile from the temperature calibration line obtained in advance from each measurement point. In addition, the sensors applied to three-dimensional temperature distribution measurement of a complex flow field in the bundle structure. The axial and cross-sectional profiles of temperature were quantified in the forced flow field with nonboiling when the 5×5 bundle was heated by energization.

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Zhuge, Xianglong, Xiangdong Qi, Shanzhe Wang e Yang Liu. "Evaluation and Improvement of the Performance of a Wellhead Multistage Bundle Gas–Liquid Separator". Processes 10, n. 4 (24 marzo 2022): 632. http://dx.doi.org/10.3390/pr10040632.

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A wellhead multistage bundle gas–liquid separator combining a gas–liquid cylindrical cyclone (GLCC) with multi-tube bundle components is expected to improve the gas–liquid separation performance. However, there is no unified understanding of the factors influencing the separation performance of the separator. The continuous improvement and applications of the separator are restricted. This paper evaluated the performance of the separator using a numerical simulation method. The results indicate that the separation flow field evolves to be uniform with the increased water cut when the gas–oil ratio and flow rate remain constant. Compared with a 30% water cut, the separation efficiency at a 50% water cut increased by 5.88%. When the gas–oil ratio and water cut remained constant, the swirl effect of the primary separation was enhanced. The separation efficiency increased to more than 70% when the flow rate was 15 m/s. When the flow rate and water cut remained unchanged, the pressure of the separation flow field was reduced. However, when the gas–oil ratio was greater than 160 m3/t, the flow field trace density of the secondary separation bundle was reduced, and the separation efficiency was also lower than 60%. The separation efficiency can be further improved by optimizing the number and diameter of secondary separation bundles.

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Kureshi, Abdul Kadir, e Mohd Hasan. "Analysis of CNT Bundle and Its Comparison with Copper Interconnect for CMOS and CNFET Drivers". Journal of Nanomaterials 2009 (2009): 1–6. http://dx.doi.org/10.1155/2009/486979.

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In nanoscale regime as the CMOS process technology continues to scale, the standard copper (Cu) interconnect will become a major hurdle for onchip communication due to high resistivity and electromigration. This paper presents the comprehensive evaluation of mixed CNT bundle interconnects and investigates their prospects as a low power high-speed interconnect for future nanoscale-integrated circuits. The performance of mixed CNT bundle interconnect is examined with carbon nanotube field effect transistor (CNFET) as a driver and compared with the traditional interconnect, that is, CMOS driver on Cu interconnect. All HSPICE simulations are carried out at operating frequency of 1 GHz and it is found that mixed CNT bundle interconnects with CNFET as the driver can potentially provide a substantial delay reduction over traditional interconnects implemented at 32 nm process technology. Similarly, the CNFET driver with mixed CNT bundle as interconnect is more energy efficient than the traditional interconnect at all supply voltages (VDD) from 0.9 V to 0.3 V.

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Park, Jin Hee, Hee Jin Park, So Yeon Lee, Hyun Pyo Hong, Soo Youn Ham, Kyung A. Kang e Jin Hwan Ahn. "Intra-articular and meniscal pathology according to anterior cruciate ligament injury pattern: both-bundle tear or selective bundle tear". Acta Radiologica 61, n. 5 (9 settembre 2019): 644–50. http://dx.doi.org/10.1177/0284185119873117.

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Background Articular cartilage injury and meniscal tear are usually combined with anterior cruciate ligament injury. Purpose We investigated the incidence of cartilage injury and traumatic meniscal tear according to the type of combined anterior cruciate ligament tear (both-bundle versus selective bundle tear). Material and Methods This retrospective study included 103 patients diagnosed with anterior cruciate ligament tear after knee joint magnetic resonance imaging and who underwent knee joint arthroscopy. Two radiologists evaluated articular cartilage injuries and meniscal tear independently. We used the chi-square test to analyze the association between type of anterior cruciate ligament bundle tear and presence of cartilage or meniscal injury in each reader. Results Cartilage injury presented a significantly higher prevalence in both-bundle tear than did selective bundle tear in reader 1 ( P = 0.004). In reader 2, both-bundle tear had a tendency for higher risk of cartilage injury, but this was not statistically significant ( P = 0.178). In meniscal injury, there was a statistically significant increase in the risk of associated meniscal injury in both-bundle tear versus selective bundle anterior cruciate ligament injury ( P = 0.019 and 0.021). The risk of accompanying traumatic meniscal lesion was significantly higher in both-bundle tear ( P = 0.036 and 0.018). Conclusion The incidence of accompanying meniscal injury, especially traumatic tears, is higher in both-bundle anterior cruciate ligament tear than in selective bundle tear. There was no significant difference in incidence of cartilage injury between both-bundle tear and selective bundle tear, although one of two readers showed a higher incidence in both-bundle tear.

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Kim, Yong-Chan, Jong-Hyeon Lee e Tae-Han Song. "Development of CANDU Spent Fuel Bundle Inspection System and Technology". Journal of the Korean Radioactive Waste Society 11, n. 1 (30 marzo 2013): 31–39. http://dx.doi.org/10.7733/jkrws.2013.11.1.31.

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Fang, Hongwei, e Songyi Dian. "Research on Intelligent Detection Technology for Bundle Branch Conduction Block". IOP Conference Series: Materials Science and Engineering 428 (1 ottobre 2018): 012034. http://dx.doi.org/10.1088/1757-899x/428/1/012034.

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Kiat, W. Y., K. Yamamoto e S. Ohgaki. "Optimal Fiber Spacing in Externally Pressurized Hollow Fiber Module for Solid Liquid Separation". Water Science and Technology 26, n. 5-6 (1 settembre 1992): 1245–54. http://dx.doi.org/10.2166/wst.1992.0567.

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Flux decline and clogging mechanism in hollow fiber bundle by activated sludge and kaolin clay suspensions were investigated experimentally. Filtration characteristics of hollow fiber bundles consisting of 10 fiber threads but different in packing density were observed. The main reason for severe flux decline was due to the accumulation of particles at the space in between fibers. The results showed that there was no particle accumulation when fiber packing density β was lower than a critical value βa. Maximum filtration flux and maximum membrane productivity Q/Vr,which is defined as the filtration rate per unit volume of bundle, were obtained below and at this point, respectively. When fiber packing density β was increased, accumulation of particles happened and flux declined rapidly to a minimum, then increased to a maximum and then decreased when surface clogging predominated in the case of activated sludge filtration, but remained almost constant for the case of kaolin clay suspensions. The critical point where accumulation of particles started was related to cross flow velocity. The higher the cross flow velocity, the higher the value of βa obtained.

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Mutea, Emily, Stephan Rist e Johanna Jacobi. "Applying the Theory of Access to Food Security among Smallholder Family Farmers around North-West Mount Kenya". Sustainability 12, n. 5 (26 febbraio 2020): 1751. http://dx.doi.org/10.3390/su12051751.

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Access to productive resources such as land and water is fundamental for households that rely on crop and livestock production for their livelihoods. Research often assumes that agricultural production—and thus, food security—are favoured by tenure security of resources (as represented by a “bundle of property rights”). However, research has not yet elucidated how food security is influenced by additional factors, represented within a “bundle of powers”. Guided by the Theory of Access developed by Ribot and Peluso, we explore the main factors in the respective bundles of rights and powers that influence household food security around north-west Mount Kenya. We interviewed 76 households—38 food secure and 38 food insecure—who were subsampled from a previous food security survey of 380 households. Results show that household food insecurity was not exclusively the result of a lack of private property rights as many farmers had retained their property rights. Instead, a major factor preventing access to productive resources was the difficulty faced by food insecure households in accessing farm technology (i.e. hand tools and implements). Access to authority and via social relations were significantly correlated with access to technology, so improving the latter must take into account the former.

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Liu, Na. "Application of 3D Image Technology in Motor and Sensory Nerve Classification". Scientific Programming 2021 (28 settembre 2021): 1–6. http://dx.doi.org/10.1155/2021/2219110.

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Objective. To explore the application of 3D image technology in motor and sensory nerve classification. Methods. A total of 200 sections of the 5cm-long popliteal fossa peroneal nerve from adult volunteers were cut and frozen. The slices were 10 m thick, and the interval between the slices was 0.25 mm. Acetylcholinesterase histochemical staining was used to observe the changes of nerve bundles under the microscope. The stained sections were transformed into digital images by the digital camera system, and the images were stitched to obtain a two-dimensional panoramic image 100 times magnified. The properties of the functional bundles were manually judged. Using Amira 3.1 three‐dimensional reconstruction software to realize the three-dimensional reconstruction and visualization of nerve can not only accurately perceive the complex three-dimensional surface structure of nerve, but also arbitrarily display, rotate, scale, and segment the three-dimensional structure inside nerve, and carry out three-dimensional measurement in time. It has made preliminary achievements in brachial plexus, lumbosacral plexus, neural stem functional bundle (group), and intramuscular nerve routing and distribution, including the regeneration process of sensory nerve and three-dimensional reconstruction and visualization of composite tissue containing sensory nerve. Conclusion. Based on histology and computer technology, the functional band of short peroneal nerve can be reconstructed in 3D, which provides a feasible basis for the three-dimensional reconstruction of the functional band of the long peripheral nerve.

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Zabaras, G. J., e J. J. Zhang. "Bundle-Flowline Thermal Analysis". SPE Journal 3, n. 04 (1 dicembre 1998): 363–72. http://dx.doi.org/10.2118/52632-pa.

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Jarosiński, Grzegorz, e Krzysztof S. Gołba. "Causes of Failures and Complications in Stimulation of the Conduction System Pacing". In a good rythm 2, n. 59 (30 settembre 2021): 17–21. http://dx.doi.org/10.5604/01.3001.0015.4534.

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Conductive system stimulation relies on the direct stimulation of His-Purkinje’s specialized cardiac conduction system for physiological activation of the ventricles, as opposed to asynchronous activation induced by conventional myocardial stimulation. Since the first report of permanent His bundle stimulation in 2000, the stylet-based technique has undergone significant advances in technology. Single-center observational studies have now been supported by large multicenter, international registries, meta-analysis and the first randomised controlled trials. New evidence has elucidated mechanisms of HBP and illustrated the nature and magnitude of its potential benefits for preventing pacing-induced cardiomyopathy and correcting bundle branch block. Left bundle branch pacing (LBBP) is a newer technique in which the lead is fixed deep into the left side of the intraventricular septum to allow capture of the left bundle, distal to the His bundle. LBBP holds promise as a method for physiological pacing that overcomes some of the fixation, threshold and sensing challenges of HBP.

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Weng, Yi, e Hong Jun Cui. "Investigation into the Fabric Handle which Weaved on Air-Jet Loom by Bundle Yarn Filling Insertion Technology". Advanced Materials Research 821-822 (settembre 2013): 360–64. http://dx.doi.org/10.4028/www.scientific.net/amr.821-822.360.

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Aimed to investigate the fabric handle which weaved with bundle yarn filling insertion technology, the properties of interlace resistance, flatness, friction, bending and compressing are tested. And 2 fabrics with the same size which weaved by different weaving methods on air-jet loom are analyzed contrastively. The result shows that the double wefts satin fabric which weaved with bundle yarn filling insertion technology had the adjacent interweave resistance, touched more flat and stiff compared to which weaved by traditional weaving technique. It was smoother and had better bending properties at warp orientation. But along weft orientation, it was rougher and had less bending properties.

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Zheng Tianran, 郑天然, 张颖 Zhang Ying, 耿远超 Geng Yuanchao, 黄晚晴 Huang Wanqing, 刘兰琴 Liu Lanqin, 孙喜博 Sun Xibo, 王文义 Wang Wenyi, 李平 Li Ping, 张锐 Zhang Rui e 粟敬钦 Su Jingqin. "Smoothing by Spectral Dispersion Technology Based on Bundle Multiple-Frequency Modulation". Chinese Journal of Lasers 44, n. 12 (2017): 1205003. http://dx.doi.org/10.3788/cjl201744.1205003.

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37

Kumbhare, Vijay Rao, Punya Prasanna Paltani e Manoj Kumar Majumder. "Performance analysis of mixed CNT bundle interconnects at 10 nm technology". IET Circuits, Devices & Systems 14, n. 7 (1 ottobre 2020): 1049–57. http://dx.doi.org/10.1049/iet-cds.2019.0516.

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Zhao, Songjie, e Zhongliang Pan. "Inductive Peaking Technology for Bandwidth Enhancement in Carbon Nanotube Bundle Interconnect". physica status solidi (a) 215, n. 5 (8 gennaio 2018): 1700459. http://dx.doi.org/10.1002/pssa.201700459.

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39

Romaneli, Larissa de Moraes, Rachel da Silva Serejo Cardoso, Larissa Santos de Oliveira, Amanda Guimarães Mosa, Yslane Andrade Pereira e Rosimere Ferreira Santana. "Integração do Bundles de sepse ao processo de enfermagem". Research, Society and Development 11, n. 10 (27 luglio 2022): e206111032667. http://dx.doi.org/10.33448/rsd-v11i10.32667.

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Abstract (sommario):

Objetivo: identificar na literatura como ocorre integração do Bundles de sepse ao processo de enfermagem. Método: revisão integrativa, de 2015 a 2020, nas bases de dados BDENF, MEDLINE, LILACS via BVS e SCIELO, em português. Os estudos elegíveis foram discutidos e apresentados em tabelas. Resultados: dos 10 estudos elegíveis, 60% apresentam nível IV de evidência e apontaram 3 abordagens distintas: a importância do Enfermeiro frente à Sepse; o papel fundamental da educação continuada e da capacitação dos enfermeiros a sepse e a necessidade emergente de integrar o Bundle de Sepse ao processo de enfermagem. Conclusão: constatou-se fragilidade acadêmica e profissional da enfermagem frente à sepse, sugerindo investimento para educação e capacitação ao tema das instituições de ensino e de cuidado. Existem lacunas de pesquisas que integrem o Bundle de sepse ao processo de enfermagem, recomenda-se desenvolvimento de novas pesquisas com alto nível de evidência contribuindo para prática baseada em evidência.

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Gotzias, Anastasios, e Andreas Sapalidis. "Pulling Simulations and Hydrogen Sorption Modelling on Carbon Nanotube Bundles". C — Journal of Carbon Research 6, n. 1 (4 marzo 2020): 11. http://dx.doi.org/10.3390/c6010011.

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Recent progress in molecular simulation technology has developed an interest in modernizing the usual computational methods and approaches. For instance, most of the theoretical work on hydrogen adsorption on carbon nanotubes was conducted a decade ago. It should be insightful to reinvestigate the field and take advantage of code improvements and features implemented in contemporary software. One example of such features is the pulling simulation modules now available in many molecular dynamics programs. We conduct pulling simulations on pairs of carbon nanotubes and measure the inter-tube distance before they dissociate in water. We use this distance to set the interval size between adjacent nanotubes as we arrange them in bundle configurations. We consider bundles with triangular, intermediate and honeycomb patterns, and armchair nanotubes with a chiral index from n = 5 to n = 10. Then, we simulate low pressure hydrogen adsorption isotherms at 77 K, using the grand canonical Monte Carlo method. The different bundle configurations adsorb great hydrogen amounts that may exceed 2% wt at ambient pressures. The computed hydrogen capacities are considered large for physisorption on carbon nanostructures and attributed to the ultra-microporous network and extraordinary high surface area of the configured models.

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Kumar Rai, Mayank, Rajesh Khanna e Sankar Sarkar. "Control of tube parameters on SWCNT bundle interconnect delay and power dissipation". Microelectronics International 31, n. 1 (20 dicembre 2013): 24–31. http://dx.doi.org/10.1108/mi-03-2013-0016.

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Purpose – This paper aims to propose to study the control of tube parameters in terms of diameter, separation between adjacent tubes and length, on delay and power dissipation in single-walled carbon nanotube (SWCNT) bundle interconnect for VLSI circuits. Design/methodology/approach – The paper considers a distributed-RLC model of interconnect. A CMOS-inverter driving a distributed-RLC model of interconnect with load of 1 pF. A 0.1 GHz pulse of 2 ns rise time provides input to the CMOS-inverter. For SPICE simulation, predictive technology model (PTM) is used for the CMOS-driver. The performance of this setup is studied by SPICE simulation in 22 nm technology node. The results are compared with those of currently used copper interconnect. Findings – SPICE simulation results reveal that delay increases with increase in separation between tubes and diameter whereas the reverse is true for power dissipation. The authors also find that SWCNT bundle interconnects are of lower delay than copper interconnect at various lengths and higher power dissipation due to dominance of larger capacitance of tube bundle. Originality/value – The investigations show that tube parameters can control delay and this can also be utilized to decrease power dissipation in SWCNT bundle interconnects for VLSI applications.

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Sathyakam, Piratla Uma, e Partha S. Mallick. "Reducing Crosstalk Induced Delay and Peak Noise in Carbon Nanotube Interconnects". Current Nanoscience 14, n. 1 (22 dicembre 2017): 76–80. http://dx.doi.org/10.2174/1573413713666170821123024.

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Background: Crosstalk will be a major concern in future nano ICs where the components will be scaled down to a few nanometers. In particular, modeling of CNT based interconnects shows that they will suffer from crosstalk when fabricated at smaller technology nodes. Objective: This paper presents reduction of crosstalk and noise in CNT bundle interconnects. We propose the use of small diameter semiconducting CNTs (s-CNTs) as electromagnetic interference (EMI) shields for CNT bundle interconnects. Methods: The coupling capacitance of the proposed CNT bundle structure shows that crosstalk can be reduced significantly by using small diameter s-CNTs. We perform SPICE analysis to show the reduction in crosstalk and peak noise. Results: The proposed bundle geometry reduces 46% crosstalk induced delay and 23% output peak noise as compared to conventional CNT interconnects. Conclusions: Small diameter semiconducting CNTs can be used as EMI shields to reduce crosstalk and noise in CNT interconnects.

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Grimm, Juniana. "Waves Gold Native Bundle Version 3.0". Computer Music Journal 25, n. 4 (dicembre 2001): 102–6. http://dx.doi.org/10.1162/comj.2001.25.4.102.

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Fabrykiewicz, Maciej, e Janusz T. Cieśliński. "Effect of Tube Bundle Arrangement on the Performance of PCM Heat Storage Units". Energies 15, n. 24 (9 dicembre 2022): 9343. http://dx.doi.org/10.3390/en15249343.

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The results of a comprehensive study on the charging and discharging of latent heat storage systems (LHSS) are presented. Multi-tube shell-and-tube units with variable layouts of tube bundles are examined. Two tube arrangements—in-line and staggered—are tested. A variable number of tubes and different tube positions in a bundle are investigated. Moreover, two pitch ratios are studied. Three commercially available substances are used as phase change materials (PCM). The results show that increasing the number of tubes reduces both the charging and discharging times. It is found that for a bundle of seven tubes with a pitch ratio s/d = 4.5, the in-line tube arrangement results in a shorter charging time, but the discharging time is shorter for a staggered tube arrangement.

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Ali, Nadine, Daniel Keene, Ahran Arnold, Matthew Shun-Shin, Zachary I. Whinnett e SM Afzal Sohaib. "His Bundle Pacing: A New Frontier in the Treatment of Heart Failure". Arrhythmia & Electrophysiology Review 7, n. 2 (2018): 103. http://dx.doi.org/10.15420/aer.2018.6.2.

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Biventricular pacing has revolutionised the treatment of heart failure in patients with sinus rhythm and left bundle branch block; however, left ventricular-lead placement is not always technically possible. Furthermore, biventricular pacing does not fully normalise ventricular activation and, therefore, the ventricular resynchronisation is imperfect. Right ventricular pacing for bradycardia may cause or worsen heart failure in some patients by causing dyssynchronous ventricular activation. His bundle pacing activates the ventricles via the native His-Purkinje system, resulting in true physiological pacing, and, therefore, is a promising alternate site for pacing in bradycardia and traditional CRT indications in cases where it can overcome left bundle branch block. Furthermore, it may open up new indications for pacing therapy in heart failure, such as targeting patients with PR prolongation, but a narrow QRS duration. In this article we explore the physiology, technology and potential roles of His bundle pacing in the prevention and treatment of heart failure.

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Zhou, Ruqin, Wanshou Jiang e San Jiang. "A Novel Method for High-Voltage Bundle Conductor Reconstruction from Airborne LiDAR Data". Remote Sensing 10, n. 12 (17 dicembre 2018): 2051. http://dx.doi.org/10.3390/rs10122051.

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The security of high-voltage power transmission corridors is significantly vital to the national economy and daily life. With its rapid development, LiDAR (Light Detection and Ranging) technology has been widely applied in the inspection of transmission lines. As the basis of potential hazard detection, a robust and precise power line model is a necessary requirement for rapid and correct clearance. Thus, this paper proposes a novel method for high-voltage bundle conductor reconstruction, which can precisely reconstruct each sub-conductor. First, points in high-voltage power transmission corridors are detected and classified into four categories; second, for classified power lines, single power line spans are extracted, and bundle conductors are identified by analyzing the single spans’ fitting residuals; and then, each sub-conductor of bundle conductors is extracted by a projected dichotomy method on the XOY and XOZ planes, respectively; finally, a double-RANSAC (random sample consensus)-based algorithm was introduced to reconstruct each power line. The proposed method makes use of the distribution of bundle conductors in high-voltage transmission lines, and our experiments showed that it could preferably reconstruct the real structure of bundle conductors robustly with a high precision better than 0.2 m.

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Yevseiev, Serhii, Oksana Biesova, Dmytro Kyrychenko, Olena Lukashuk, Stanislav Milevskyi, Serhii Pohasii, Iryna Husarova, Anna Goloskokova e Volodymyr Sobchenko. "Development of a method for estimating the effect of transformation of the normalized frequency mismatch function of a coherent bundle of radio pulses on the quality of radar frequency resolution". Eastern-European Journal of Enterprise Technologies 4, n. 4(112) (30 agosto 2021): 13–22. http://dx.doi.org/10.15587/1729-4061.2021.238155.

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The necessity of studying the influence of the transformation of the frequency mismatch function of a coherent bundle of radio pulses on the quality of solving the radar frequency resolution problem is substantiated. This solution determines the effectiveness of radar observation of high-speed and maneuvering individual and group aerodynamic objects. The method is based on explicit expressions for calculating the normalized frequency mismatch function of a coherent bundle of radio pulses, taking into account its transformation due to the radial motion of high-speed and maneuvering individual and group aerodynamic objects. The estimation of the potential frequency resolution of bundles with different numbers of radio pulses with typical parameters for a coherent pulse radar is carried out. Possible values of frequency resolution under the additive effect of uncorrelated internal noise of the radar receiver and the multiplicative effect of correlated phase fluctuations of the radar signal are estimated. With an insignificant multiplicative effect of correlated phase fluctuations, a twofold increase in the number of radio pulses in a bundle provides an improvement in the frequency resolution (reduction of the width of the normalized frequency mismatch function) by 100 %. With the predominant multiplicative effect of these fluctuations, a twofold increase in the number of radio pulses results in an improvement in the frequency resolution by about 40 %. The developed method is of great theoretical and practical importance for the further development of the radar theory of high-speed and maneuvering individual and group aerodynamic objects.

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Chen, Fuming, Jianchao Deng, Haitao Cheng, Haidong Li, Zehui Jiang, Ge Wang, Qingchao Zhao e Sheldon Q. Shi. "Impact properties of bamboo bundle laminated veneer lumber by preprocessing densification technology". Journal of Wood Science 60, n. 6 (2 agosto 2014): 421–27. http://dx.doi.org/10.1007/s10086-014-1424-0.

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Harnage, Sophie A. "Achieving Zero Catheter Related Blood Stream Infections: 15 Months Success in a Community Based Medical Center". Journal of the Association for Vascular Access 12, n. 4 (1 dicembre 2007): 218–24. http://dx.doi.org/10.2309/java.12-4-8.

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Abstract Achieving Zero Catheter Related Blood Stream Infections: 15 Month Success In A Community Based Medical Center. Background and Purpose: Catheter related blood stream infection (CRBSI) is a major cause of patient morbidity, mortality, and cost. Lower CRBSI rates would decrease inpatient length of stay. Project: An innovative central line bundle was developed to reduce CRBSI. An innovative combination of focused nursing practice and product technologies were selected for the bundle and implemented through a defined educational program. Data was collected from thirty-two critical care beds: 16 medical/surgical ICU and 16 Trauma-Neuro ICU beds. Results: From January 2006 thru March 2007 there were Zero occurrences of CRBSI. Over this 15 month period our PICC insertions increased by 103%, and our interventional radiology referral rate decreased to less than 2%. Implications/Conclusions: A multimodality bundle, combining nursing practice interventions and technology can successfully decrease the incidence of CRBSI. While some of the bundle components have not been widely researched and instead are based on theory or accepted clinical practice, the early outcome provides a basis for additional study and refinement. It also invites research into the various components of the bundle to evaluate the effect each separate practice and product lends to its success.

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Chen, Lei, Hongxin Zhang, Song Huang, Bo Wang e Chuanliang Zhang. "Numerical Analysis of Flow-Induced Vibration of Heat Exchanger Tube Bundles Based on Fluid-Structure Coupling Dynamics". Modelling and Simulation in Engineering 2022 (9 settembre 2022): 1–13. http://dx.doi.org/10.1155/2022/1467019.

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According to the needs generated by the industry, there is an urgent need to investigate the flow vibration response law of the elastic tube bundle of heat exchangers subjected to the coupling effect of shell and tube domain at different inlet flow velocities. In this paper, based on the continuity equation, momentum equation, turbulence model, and dynamic grid technology, the vibration response of the elastic tube bundle under the mutual induction of shell and tube fluids is studied by using pressure-velocity solver and two-way fluid-structure coupling (FSC) method. The results show that the monitoring points on the same connection block have the same vibration frequency, while the vibration amplitude is different. Monitoring point A is the most deformed by the impact of fluid in the shell and tube domain. When the inlet velocity( v shell = v tube = 0.15 , 0.4, 0.5 m/s) of shell and tube is low, the amplitude of tube bundle vibration in the Y direction is greater than that in X and Z direction, and the tube bundle produces periodic vibration in the vertical direction. The vibration equilibrium position of the tube bundle along the shell flow direction gradually moves up with the increase of the inlet velocity. The amplitude in the Y -direction of the elastic bundle decreases with the increase of shell-side and tube-side velocity. The relationship between the vibration amplitude in the Y direction and the entrance velocity is a linear function.

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