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1
Carr, Stephen H. "Up Close: Northwestern University Materials Research Center." MRS Bulletin 11, no. 5 (October 1986): 36. http://dx.doi.org/10.1557/s088376940005449x.
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The Materials Research Center at Northwestern University is an interdisciplinary center that supports theoretical and applied research on experimental advanced materials. Conceived during the post-Sputnik era, it is now in its 26th year.The Center, housed in the university's Technological Institute, was one of the first three centers funded at selected universities by the federal government in 1960. The federal government, through the National Science Foundation, now supplies $2.4 million annually toward the Center's budget, and Northwestern University supplements this amount. Approximately one third of the money is used for a central pool of essential equipment, and the other two thirds is granted to professors for direct support of their research. Large amounts of time on supercomputers are also awarded to the Materials Research Center from the National Science Foundation and other sources.The Center's role enables it to provide partial support for Northwestern University faculty working at the frontiers of materials research and to purchase expensive, sophisticated equipment. All members of the Center are Northwestern University investigators in the departments of materials science and engineering, chemical engineering, electrical engineering, chemistry, or physics. The Materials Research Center is a major agent in fostering cross-departmental research efforts, thereby assuring that materials research at Northwestern University includes carefully chosen groups of faculty in physics, chemistry, and various engineering departments.
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Moore, Sarah Catherine K., and Julie Sugarman. "Center for Applied Linguistics, Washington DC, USA." Language Teaching 43, no. 4 (August 23, 2010): 522–26. http://dx.doi.org/10.1017/s0261444810000212.
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The Center for Applied Linguistics (CAL) is a private, nonprofit organization dedicated to the application of research on language and culture to educational and societal concerns. Through its work in research, information dissemination, development of instructional materials and language tests, and professional development and technical assistance to schools, districts, and states, CAL serves as a liaison between the academic world of research and the practical world of language education and language-related concerns. CAL plays a leading role in articulating language- and culture-related issues that affect policy decisions; conducting research on language use, language learning, and effective teaching methods; and translating research into practical applications that help language learners succeed.
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Sugarman, Julie, Molly Fee, and Anne Donovan. "Center for Applied Linguistics, Washington DC, USA." Language Teaching 48, no. 2 (March 13, 2015): 292–97. http://dx.doi.org/10.1017/s0261444814000421.
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The Center for Applied Linguistics (CAL) is a private, nonprofit organization with over 50 years’ experience in the application of research on language and culture to educational and societal concerns. CAL carries out its mission to improve communication through better understanding of language and culture by engaging in a variety of projects in the areas of primary, secondary, and adult education, including research on effective strategies for the instruction of linguistically and ethnically diverse students; evaluation of the effectiveness of educational programs for such students; professional development for teachers and other staff working with linguistically diverse students; development of instructional materials and language tests; and services to support cultural orientation of immigrants and refugees.
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Chappert, J., P. Coeure, P. Rey, J. A. Silvent, and J. P. Spitz. "Up Close: Materials Research at the Grenoble Nuclear Research Center of the French Atomic Energy Commission (CEA)." MRS Bulletin 14, no. 6 (June 1989): 41–50. http://dx.doi.org/10.1557/s0883769400062710.
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Most great technological advances initially required finding a solution to materials problems, a fact that is not very often recognized. The development of nuclear energy is no exception to this rule. The fuel in the reactor core, cladding of the fuel, and structures which support the core or which carry the coolant are, indeed, subjected to extreme conditions of radiation flux, temperature, pressure, and corrosion. In order to achieve safe, industrial reactors, the French Atomic Energy Commission (CEA) had to build an enormous program in materials research and development from the ground floor. At present, CEA has reached a very high level of knowledge and expertise through excellent scientific teams and exceptional equipment.In its present industrial phase, the French Nuclear Program still requires considerable effort in research, but it does enable the nation's industry to take advantage of the CEA's materials capabilities. In accordance with its mission to facilitate the utilization of research results, the CEA launched research and development programs in different non-nuclear industries where its research could find new applications.Since its creation in 1955, the Grenoble Nuclear Research Center (CEN-G), one of the five civilian centers of the CEA, has concentrated a great part of its research on basic (solid-state physics) and applied aspects (nuclear metallurgy). This double orientation, in which basic research is used as a basis for applied research, is an original feature of the CEN-G.
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Wang, Ping, Xianjun Chen, and Xuebin Zhang. "Research on Location of Logistics Distribution Center Based on K-Means Clustering Algorithm." Security and Communication Networks 2022 (July 9, 2022): 1–9. http://dx.doi.org/10.1155/2022/2546429.
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The basic task of the logistics distribution center is to achieve the storage and distribution of materials, and to plan, implement, and manage the effective flow of materials from the supplying place to the consumption place. Scientific location of logistics distribution center can effectively reduce logistics cost, improve the speed of circulation, increase the profits of enterprises, and enhance the core competitiveness of enterprises. Combining the advantages of K-means clustering algorithm, this paper applies it to the location problem of logistics distribution center and proposes a logistics distribution center location method combining K-means clustering theory and D-S reasoning, which provides a better solution for the location problem of logistics distribution center. Through case analysis, K-means clustering algorithm can obtain reasonable location of logistics distribution center, which can be applied to the location of multilevel logistics distribution network, and has certain practical application value.
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Smith-Kayode, O., A. Babalola, V. O. Agbeja, and S. O. Fasesan. "Applied Research for Citrus and Tropical Fruit Ingredient and Raw Materials Development for Juice Processing." HortScience 31, no. 4 (August 1996): 644g—645. http://dx.doi.org/10.21273/hortsci.31.4.644g.
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The National Horticultural Research Institute coordinates many projects designed to boost and improve the use of various fruits and vegetables around Nigeria. To achieve the set goals for fruit processing, projects are undertaken in cooperation with selected laboratories. Based on the depth of work required for transforming research results into patented products, university and industry were involved in a collaborative assignment in sweet orange concentrate research and development. The work covered engineering and product testing, packaging, and sensory experiments in which materials and resources were shared at the participating center. This presentation focuses on guidelines for overcoming the problems associated with collaborative studies in developing countries and suggestions on funding components.
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Collins, Peter, Amy Clarke, Robert Field, Stephen Midson, and Michael Kaufman. "CANFSA: Exploring the Physical Metallurgy of Non-Ferrous Alloys." AM&P Technical Articles 174, no. 9 (October 1, 2016): 30–32. http://dx.doi.org/10.31399/asm.amp.2016-09.p030.
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Abstract A unique collaboration brings together university and industry stakeholders to conduct basic and applied physical metallurgy research on nonferrous structural alloys. This article provides a brief overview of the Center for Advanced Non-Ferrous Structural Alloys (CANFSA), summarizes current research efforts, and describes the types of industry-university interactions within CANFSA.
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Millberg, L. S. "Up Close: Johns Hopkins Center for Nondestructive Evaluation." MRS Bulletin 13, no. 1 (January 1988): 27–33. http://dx.doi.org/10.1557/s0883769400066550.
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Nondestructive evaluation has historically been used almost exclusively for detecting macroscopic defects after materials have been made or put into service. However, the role of NDE is now changing to include in-process control in an effort to increase yields and performance of materials. This includes materials stability during transport, storage, and fabrication, as well as degradation behavior during in-service life. The NDE community has implied that applying NDE in these ways is crucial to solving the economic problems of U.S. manufacturing industries. So called “intelligent manufacturing” is impossible without integrating modern NDE techniques into the production of today's advanced materials.The Johns Hopkins University Center for Nondestructive Evaluation (CNDE) was established in 1984 as an interdisciplinary center for research and instruction, drawing on the resources and talent of the School of Engineering, Applied Physics Laboratory, School of Medicine, and School of Arts and Sciences. Currently 31 faculty or senior staff work with the Center. The techniques being developed are aimed at reliable in-process control of materials and processes. Another important purpose is the education of talented students who will enter the NDE field; 150 students are associated with the Center, a third of whom are graduate students. The CNDE also provides both research collaborators and industrial sponsors with access to all NDE research and instruction at Johns Hopkins University. Twenty-six research institutions have formal cooperative research programs and 19 organizations are corporate sponsors (see Figure 1).
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Li, Zhi Hui, Bai Qing Xiong, Yon Gan Zhang, Xin Yu Lu, Zhen Bo He, Long Bin Jin, Xi Wu Li, and Xiao Lei Han. "Research on Multi-Artificial Aging Applied to Aluminum Alloy 7150 Plate." Materials Science Forum 706-709 (January 2012): 340–45. http://dx.doi.org/10.4028/www.scientific.net/msf.706-709.340.
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The AA 7150-T351, in the form of 40 mm thick plates, was subjected to single-stage aging leading to peak aged condition, and two selected multi-artificial aging treatments leading to the over aged conditions. The microstructural differences along the thickness direction of the AA 7150-T351 plate were investigated using OM and electron backscatter diffraction (EBSD) technique, and the microstructural characterization was studied at different stages of multi-artificial ageing process by transmission electron microscopy. Tensile properties and electrical conductivity measurements were used to evaluate the property homogeneity along the thickness direction of the plate under various artificial aging tempers. It was revealed that the microstructural features and tensile property are inhomogeneous in different layers along the thickness direction, and both grain structure and tensile property exhibit appreciable anisotropy at the same thickness layer. The volume fraction of recrystallized grain of T351 plate in the near surface layer is higher than that in the center layer remarkably. It is also shown that two selected multi-artificial aging tempers can provide optimal precipitates in matrix and at grain boundaries, which gives rise to a combination of high strength and stress corrosion cracking (SCC) resistance in such materials.
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Guo, Hong Che, Lu Ping Dai, and Chao Yi Ding. "Research on Calculation Method of Equivalent Stress for Main Shaft in Wind Turbine." Applied Mechanics and Materials 385-386 (August 2013): 255–58. http://dx.doi.org/10.4028/www.scientific.net/amm.385-386.255.
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The reactions, equations of moment and the overall moment of two planes were deduced based on mechanics of materials, as the main shaft was assumed to be a homogeneous three-section beam. Based on the fourth strength theory, equivalent stresses of three cross sections were solved. Based on the deduced conclusion, the equivalent stress of a various ultimate load cases were solved automatically by entering the loads of the hub center in the Excel, which was applied to the design and optimize for the main shaft.
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Fulpagare, Yogesh, Yogendra Joshi, and Atul Bhargav. "Rack level transient CFD modeling of data center." International Journal of Numerical Methods for Heat & Fluid Flow 28, no. 2 (February 5, 2018): 381–94. http://dx.doi.org/10.1108/hff-10-2016-0426.
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Purpose The paper aims to capture the rack-level thermal dynamics in data center. It proposes the rack-level response experiments as well as transient Computational Fluid Dynamics (CFD) analysis to characterize the local thermal environment of the system. Design/methodology/approach A single sever simulator rack and its two neighboring racks with its cold and hot aisle containment have been modeled with known cold air supply temperature and flow rate for transient CFD analysis. The heat load was kept constant initially and varied case-to-case basis, which includes capturing the rack-level response with respect to changes in input. However, the response experiments on simulator rack were performed for 14 h by variation of server heat loads as step and ramp input. Findings The paper provides the detailed transient CFD analysis of data center racks. The local cold air flow rates and temperature at the vicinity of the racks showed significant effect due to changes in input. It was concluded that the rack-level dynamics impacts the thermal environment of data center and hence cannot be ignored. Research limitations/implications The high computing devices and faster internet demands have led to major thermal management concerns for data center operators. To tackle this issue, capturing the system thermal dynamics is imperative. However, the system-level CFD analysis is computationally expensive. Therefore, this paper deals with the rack-level transient CFD study using commercial tool STAR CCM+. Practical implications This paper includes the modeling of the servers as a porous media as well as the multigrid method to enhance the computational speed. The successful implementation of this approach validated through experiments. This would help to establish a base for research in any type of data center. Originality/value This paper provides the porous media approach to model servers and multigrid method to enhance the computational speed. At the same time, the thought of characterizing the local dynamics at the vicinity of data center racks is unique.
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Niegos, Heartsel Mae, April Joyce Minoza, Jessa Tidalgo, Daryll Jade Toledo, and Denzel Tron Suelto. "Research Trends of selected articles on Modern Instructional Materials and Academic Learning." Journal of Multidisciplinary Cases, no. 25 (September 29, 2022): 22–42. http://dx.doi.org/10.55529/jmc25.22.42.
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This study examined the implications of modern instructional materials in academic learning. The criteria outlined in this study were applied to previous studies that could be analysed. The researchers looked at 100 studies that met the inclusion criteria and were conducted between 2012 and 2022. The researchers looked for studies that supported their argument from all over the world, but they focused primarily on Asia and Africa. Furthermore, the researchers sourced their articles from national and international databases such as "Science Direct," "Springer Link," "Educational Resource Information Center (ERIC)," "Google Scholar," and "JSTOR." They then used them to extract data so that they could compare and draw conclusions. The descriptive approach-based analysis produced the following results: 93 out of 100 articles stated that the use of modern instructional materials is beneficial, while 7 out of 100 studies stated that it is not beneficial in their learning, and that there are phenomenon and factors that affects the effectiveness of modern instructional materials. Many researchers believe that using modern instructional materials is beneficial in a variety of ways, and only a few do not. The researchers then investigated the underlying factors that caused it. These factors include their age, year of birth, environment, culture, and so on.
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Niegos, Heartsel Mae, April Joyce Minoza, Jessa Tidalgo, Daryll Jade Toledo, and Denzel Tron Suelto. "Research Trends of selected articles on Modern Instructional Materials and Academic Learning." Journal of Multidisciplinary Cases, no. 25 (August 20, 2022): 9–30. http://dx.doi.org/10.55529/jmc.25.9.30.
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This study examined the implications of modern instructional materials in academic learning. The criteria outlined in this study were applied to previous studies that could be analysed. The researchers looked at 100 studies that met the inclusion criteria and were conducted between 2012 and 2022. The researchers looked for studies that supported their argument from all over the world, but they focused primarily on Asia and Africa. Furthermore, the researchers sourced their articles from national and international databases such as "Science Direct," "Springer Link," "Educational Resource Information Center (ERIC)," "Google Scholar," and "JSTOR." They then used them to extract data so that they could compare and draw conclusions. The descriptive approach-based analysis produced the following results: 93 out of 100 articles stated that the use of modern instructional materials is beneficial, while 7 out of 100 studies stated that it is not beneficial in their learning, and that there are phenomenon and factors that affects the effectiveness of modern instructional materials. Many researchers believe that using modern instructional materials is beneficial in a variety of ways, and only a few do not. The researchers then investigated the underlying factors that caused it. These factors include their age, year of birth, environment, culture, and so on.
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Ozola, Silvija. "ARCHITECTURAL CHANGES IN LIEPAJA’S CENTER DUE TO ECONOMIC CONDITIONS AND POLITICAL IDEOLOGY." SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference 4 (May 21, 2019): 483. http://dx.doi.org/10.17770/sie2019vol4.3706.
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In Liepaja, until 1703 economic developed on the Trade Port channel’s southern embankment. The main traffic flow changed his direction: from the port to the New Market leads Great (Latvian: Lielā) Street, at which end a wooden bridge was built over the channel. In the 19th century, the Administrative Center formed at the New Market Square’s vicinity. Streets connected squares and green structures in a united system. The Rose Square was set up instead the New Market. During World War II, the building at embankments and Great Street was destroyed. Using the Master Plan, approved in 1950, architect Vladimir Kruglov created the Detailed Plan for developed of Liepaja Center and Great Street. A reinforced-concrete bridge was built across the channel. Until the 100th Anniversary of the Proclamation of Independence of Latvia, the bridge was expanded, but Great Street was reconstructed. The object of the research – the city center of Liepaja and Great Street. Research problem – architectural changes of the city center of Liepaja and Great Street has studied not sufficiently. Research novelty – architectural analysis of the city center of Liepaja and Great Street. The goal of the research – to determine the typical changes in planning of the city center and Great Street in the context of Liepaja urban development. Main methods applied – analysis of archive documents, projects and cartographic materials of urban planning, as well as study of published literature and inspection of buildings in nature.
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Thipprakmas, Sutasn, and Arkarapon Sontamino. "Spring-Back Characteristics on Bent Holed Parts in V-Die Bending Process." Advances in Materials Science and Engineering 2022 (June 2, 2022): 1–11. http://dx.doi.org/10.1155/2022/6488261.
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In recent years, the bending of holed blank to fabricate the bent holed parts has been increasingly applied in almost all industrial fields and they also need much more complexity in shaped part and precision in dimensions. However, most of past research studies were carried out on bent nonholed parts. This causes an insufficient database and information for die design to fabricate bent holed parts. In the present research, to achieve a good design of V-bending die for fabrication of these bent holed parts, the bending mechanism and spring-back characteristic were clearly clarified based on experimental works. By making hole, it usually caused the decreases in generated bending characteristic on bending allowance zone as the hole located at center as well as the decreases in the generated reversed bending characteristics on next to bending allowance zone as the hole located next to bending allowance zone. The hole also caused the increases in additional elastic zone on hole especially for hole located at center due to the hole distortion during bending process. The effects of hole diameter were also investigated. The results elucidated that the larger hole diameter applied, the larger amount of spring-back obtained. Therefore, to achieve a good design of V-bending die for fabrication of V-bent parts of holed blank, the hole position and diameter should be carefully considered.
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Nault, Brian A., and John Speese. "New and Labeled Foliar Materials and Tank Mixesl To Control Insects on Potatoes, 1997." Arthropod Management Tests 23, no. 1 (January 1, 1998): 129–30. http://dx.doi.org/10.1093/amt/23.1.129.
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Abstract Potatoes were planted on 3 Apr at the Eastern Shore Agricultural Research and Extension Center, Painter, VA. Each plot consisted of four 20-ft-long rows. Plots were separated across rows by 3 ft and within rows by 6 ft of bare ground. There were 6 treatments plus an untreated control arranged in a RCB design replicated 4 times. Insecticide application timings were targeted for control of CPB, not ECB. Initial applications were made on 28 May when small (LI + L2) and large (L3 + L4) CPB larvae were present and many of the egg masses in the field had hatched. Two additional applications were made at 14-d intervals (11 and 30 Jun). Insecticides were applied using a propane-powered backpack sprayer equipped with 6 flat-fan nozzles/2 rows calibrated to deliver 46 il. of spray/acre at 40 psi. Data were taken weekly from 3 through 30 Jun from the center 2 rows of each plot and included the following: the number of CPB adults, egg masses, small and large larvae/10 randomly selected stems in each plot, the number of ECB-damaged stems/20 randomly chosen stems per plot, and a visual estimation of percent defoliation within each plot. The center 2 rows of each plot were harvested on 10 Jul and tubers were graded and weighed.
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Sharpless, Katherine E., David L. Anderson, Joseph M. Betz, Therese A. Butler, Stephen G. Capar, John Cheng, Catharine A. Fraser, et al. "Preparation and Characterization of a Suite of Ephedra-Containing Standard Reference Materials." Journal of AOAC INTERNATIONAL 89, no. 6 (November 1, 2006): 1483–95. http://dx.doi.org/10.1093/jaoac/89.6.1483.
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Abstract The National Institute of Standards and Technology, the U.S. Food and Drug Administration, Center for Drug Evaluation and Research and Center for Food Safety and Applied Nutrition, and the National Institutes of Health, Office of Dietary Supplements, are collaborating to produce a series of Standard Reference Materials (SRMs) for dietary supplements. A suite of ephedra materials is the first in the series, and this paper describes the acquisition, preparation, and value assignment of these materials: SRMs 3240 Ephedra sinica Stapf Aerial Parts, 3241 E. sinica Stapf Native Extract, 3242 E. sinica Stapf Commercial Extract, 3243 Ephedra-Containing Solid Oral Dosage Form, and 3244 Ephedra-Containing Protein Powder. Values are assigned for ephedrine alkaloids and toxic elements in all 5 materials. Values are assigned for other analytes (e.g., caffeine, nutrient elements, proximates, etc.) in some of the materials, as appropriate. Materials in this suite of SRMs are intended for use as primary control materials when values are assigned to in-house (secondary) control materials and for validation of analytical methods for the measurement of alkaloids, toxic elements, and, in the case of SRM 3244, nutrients in similar materials.
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Zatsarinny, A. A., K. I. Volovich, S. A. Denisov, Yu S. Ionenkov, and V. A. Kondrashev. "Choice of HPC cluster performance indicators for the example of the "Informatika" Center for Collective Use of the FRC CSC RAS." Izvestiya Vysshikh Uchebnykh Zavedenii. Materialy Elektronnoi Tekhniki = Materials of Electronics Engineering 23, no. 3 (November 10, 2020): 241–47. http://dx.doi.org/10.17073/1609-3577-2020-3-241-247.
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This article discusses a methodology for assessing the effectiveness of a high-performance research platform. The assessment is carried out for the example of the "Informatika" Center for Collective Use (CCU) established at the Federal Research Center of the Institute of Management of the Russian Academy of Sciences, for solving new materials synthesis problems. The main objective of the "Informatika" Center for Collective Use is to conduct research using the software and hardware of the data center of the FRC IU RAS, including for the benefit of third-party organizations and research teams. The general characteristics of the "Informatika" Center for Collective Use are presented, including the main characteristics of its scientific equipment, work organization and capabilities. The hybrid high-performance computing cluster of the FRC CSC RAS (HHPCC) is part of the data center of the FRC IU RAS and also part of the “Informatika” Center for Collective Use. HHPCC provides computing resources in the form of cloud services as software (SaaS) and platform (PaaS) services. With the aid of special technologies, scientific services are delivered to researchers in the form of subject-oriented applications. Based on the analysis of the structure and operation principles of the Informatika Center, key performance indicators of the Center have been developed taking into account its specific tasks in order to characterize its various activity aspects (development, activities and performance). CCU efficiency evaluation implies calculation, on the basis of the developed indicators, of overall (generalized) indicators that characterize the CCU operation efficiency in various areas. An integral indicator is also calculated showing the overall CCU efficiency. To develop the overall performance indicators and the integral performance indicator, it is suggested to use the methods of weighted average and analysis of hierarchies. The procedure of determining partial performance indicators has been considered. Specific features of the choice of CCU performance indicators for solving new materials synthesis problems have been identified that characterize computing complex capabilities in the creation of a virtualization environment (peak performance of a computing system, real performance of a computing system on specialized tests, equipment loading with applied tasks and program code efficiency).
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Alokby, Ghassan, Kholoud Mohammed AlAmari, Jamal Mohammed S. Abdullah, Mohammed Tayed Hazazi, and Fawaz Makki. "Endoscopic Reconstruction of Skull Base Defects Using Tutoplast." Allergy & Rhinology 12 (January 2021): 215265672110092. http://dx.doi.org/10.1177/21526567211009200.
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Background Various graft materials that are classified as autografts, xenografts, and allografts based on their origin have been used to endoscopically repair skull base defects. Tutoplast® (Tutogen Medical GmbH), an allogeneic natural collagen matrix, is processed through chemical sterilization that preserves tissue biocompatibility and structural integrity. Objective To study the safety and efficacy of Tutoplast Fascia Lata and Tutoplast Temporalis Fascia® as primary graft materials in the endoscopic reconstruction of skull base defects of different sizes and etiologies and to compare the outcomes with those of other traditional graft materials based on our experience. Methods This is a multi-center retrospective chart review of patients who underwent cerebrospinal fluid leak (CSF) endoscopic reconstruction with Tutoplast Fascia Lata or Tutoplast Temporalis Fascia as either a stand-alone reconstruction material or a part of a multilayer reconstruction depending on the defect at Prince Sultan Military Medical City and King Faisal Specialist Hospital and Research Center in Riyadh, Saudi Arabia, between 2017 and 2020. Our inclusion criteria were CSF leak repair with Tutoplast and a transnasal endoscopic approach. We reviewed demographic data, intraoperative and postoperative complications, repair materials, repair failure, defect size and location. Results Tutoplast® was used as the primary graft material in 33 cases. Our main outcome was repair success with lack of post operative CSF leak, observed in 30 cases (90.9%). There was no significant association between postoperative CSF leaks and factors including different defect sizes, defect sites, demographic data, hospitalization duration, or postoperative radiation in oncological cases. Conclusion Tutoplast alone or in combination with other materials can be used safely and effectively for skull base defects repair.
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Nault, Brian A., and John Speese. "Evaluation of New Foliar Materials to Control Insects on Potatoes, 1997." Arthropod Management Tests 23, no. 1 (January 1, 1998): 128–29. http://dx.doi.org/10.1093/amt/23.1.128a.
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Abstract Potatoes were planted on 3 Apr at the Eastern Shore Agricultural Research and Extension Center, Painter, VA. Each plot consisted of four 20-ft-long rows. Plots were separated across rows by 3 ft and within rows by 6 ft of bare ground. The experiment had 5 treatments plus an untreated check arranged in a RCB design replicated 4 times. Insecticide application timings were targeted for control of CPB, not ECB. Initial applications were made on 29 May when small (LI + L2) and large (L3 + L4) CPB larvae were present and many of the egg masses in the field had hatched. One additional application of each treatment was made on 12 Jun. Insecticides were applied using a propane-powered backpack sprayer equipped with 6 flat-fan nozzles/2 rows calibrated to deliver 46 gpa at 40 psi. On 13 Jun and 1 Jul, potato leafhoppers, Empoascafabae, were controlled with Dimethoate 4EC at 0.25 lb (AI)/acre using a tractor-mounted sprayer that deliv-ered 40 gal. of spray/acre at 100 psi. Data were taken weekly from 3 through 30 Jun from the center 2 rows of each plot and included the following: the number of CPB adults, egg masses, small and large larvae/10 randomly selected stems in each plot, the number of ECB damaged stems/20 randomly chosen stems per plot, and a visual estimation of percent defoliation within each plot. The center 2 rows of each plot were harvested on 10 Jul and tubers were graded and weighed.
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Voigt, Martina, Anetta Bolejko, and Magnus Dustler. "Intra- and inter-rater reliability of compressed breast thickness, applied force, and pressure distribution in screening mammography." Acta Radiologica Open 10, no. 12 (December 2021): 205846012110620. http://dx.doi.org/10.1177/20584601211062078.
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Background Ensuring equivalent and reproducible breast compression between mammographic screening rounds is important for the diagnostic performance of mammography, yet the extent to which screening mammography positioning and compression is reproducible for the individual woman is unknown. Purpose To investigate the intra- and inter-rater reliability of breast compression in screening mammography. Materials and Methods Eleven breast-healthy women participated in the study. Two experienced radiographers independently positioned and compressed the breasts of each participant in two projections—right craniocaudal and left mediolateral oblique—and at two time points. The spatial pressure distribution on the compressed breast was measured using a pressure sensor matrix. Applied force, compressed breast thickness, force in field of view, contact area, mean pressure, and center of mass (anterio-posterior and mediolateral axes) were measured. The reliabilities of the measures between the time points for each radiographer (intra-rater reliability) and between the radiographers (inter-rater reliability) were analyzed using the intraclass correlation coefficient (ICC). Results Intra- and inter-rater reliabilities from both projections demonstrated good to excellent ICCs (≥0.82) for compressed breast thickness, contact area, and anterio-posterior center of mass. The other measures produced ICCs that varied from poor (≤0.42) to excellent (≥0.93) between time points and between radiographers. Conclusion Intra- and inter-rater reliability of breast compression was consistently high for compressed breast thickness, contact area, and anterio-posterior center of mass but low for mediolateral center of mass and applied force. Further research is needed to establish objective and clinically useful parameters for the standardization of breast compression.
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Lampert, E. P., and P. S. Southern. "Control of Tobacco Wireworms and Flea Beetles with Soil and Foliar Insecticides, 1984." Insecticide and Acaricide Tests 10, no. 1 (January 1, 1985): 256–57. http://dx.doi.org/10.1093/iat/10.1.256a.
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Abstract On 15 May an area within a Rion loamy sand field at the Upper Piedmont Research Station, Reidsville, NC, was staked out for a test containing 56 plots. Treatments were then randomly assigned to plots 40 ft (22 plants) by 15 ft (4 rows, 42 inches on center) to form a randomized complete block design with 4 reps and 14 treatments. Pretransplant materials (BC-PPI) were applied on 16 May and immediately incorporated with a tandem disc. These materials were applied using a Gandy type broadcast granular applicator mounted on a Kubota 245 tractor. Due to shortage of material, the 6-lb (AI)/acre rate of UC-70480 was applied with a Cyclone Heavy Duty Broadcast Seed and Fertilizer Sower, on 17 May. This material was incorporated immediately after application as described. Tobacco was transplanted on 25 May. Transplants were set with a single row setter delivering approximately 145 gal of water/acre. Transplant water treatments (TPW) were transplanted last. After all transplanting was completed, over-the-top broadcast materials (BC) were applied using a CO2 powered backpack sprayer equipped with 3 TGI nozzles on a standard sucker control rig. Pressure was set at 60 psi and travel speed adjusted to deliver approximately 25 gal of finished spray/acre. All 4 rows in each plot were treated. Missing plants were not replaced after the treatments were applied. Flea beetle adults and flea beetle holes were counted 1, 2, and 3 wk after transplanting. Counts were made on 5 consecutive plants from each of the 2 center rows in a plot. Wireworm larval feeding was evaluated 3 wk after transplanting (18 Jun) in all but the Pydrin treatments. Five consecutive plants from each of the 2 center rows in each plot were carefully pulled and rated for damage.
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Nault, Brian A., and John Speese. "Evaluation of Foliar Materials to Control Lepidopterous Larvae on Sweet Corn, 1997." Arthropod Management Tests 23, no. 1 (January 1, 1998): 97. http://dx.doi.org/10.1093/amt/23.1.97.
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Abstract Sweet corn was planted on 30 May at the Eastern Shore Agricultural Research and Extension Center, Painter, VA. Each plot consisted of a single 25-ft-long row, which was flanked by untreated guard rows, all separated by 3 ft space. There were 9 treatments plus an untreated check arranged in a RCB design with six replications. Two of the treatments were applied on a 5-6 d schedule (18, 25, and 31 Jul), whereas the remainder were applied on a 3-4-d schedule (18, 21, 25, 28, and 31 Jul). Materials were applied with a propane-powered backpack sprayer equipped with a single, hollow-cone nozzle/row calibrated to deliver 41 gal of spray/acre of 40 psi. Sprays were directed at the ears and were initiated when corn was in full silk. On 4 Aug, 15 ripe ears were taken from each plot and rated for damage as follows: fresh market (no damage), processing (no damage + damage only within 1.5 inches from the tip), cull (any damage between the base and 1.5 inches from the tip). The total numbers of live larvae of each species/15 ears were also counted.
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Ziebert, Carlos. "Insights into magnesium batteries using calorimetry." Open Access Government 39, no. 1 (July 10, 2023): 558–59. http://dx.doi.org/10.56367/oag-039-10412.
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Insights into magnesium batteries using calorimetry Dr Carlos Ziebert, Leader of the Group Batteries – Calorimetry and Safety, KIT, explains how generated heat and self-discharge of magnesium batteries can be studied through calorimetry. In 2019, the KIT, the University of Ulm, the Center for Solar Energy and Hydrogen Research Baden- Württemberg, and the University of Giessen jointly launched the POLiS - Cluster of Excellence for Battery Research Post Lithium Storage, funded by €47 million over seven years. Such post-lithium batteries use more abundant and environmentally friendly materials, such as Sodium, Magnesium or Calcium, instead of Lithium, Nickel and Cobalt. The work in the group Batteries – Calorimetry and Safety at the Institute for Applied Materials – Applied Materials Physics (IAM-AWP) started with coin cells that were provided by the Helmholtz Institute Ulm (HIU) and the Institute of Nanotechnology (INT).
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Strunk, Rebecca, Florian Borchers, Brigitte Clausen, and Carsten Heinzel. "Influence of Subsequently Applied Mechanical and Thermal Loads on Surfaces Ground with Mechanical Main Impact." Materials 14, no. 9 (May 4, 2021): 2386. http://dx.doi.org/10.3390/ma14092386.
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To generate advanced properties for the wear resistance and fatigue life of components and allow for an improved, application-oriented development of part specifications, a precisely tailored initial machining or manufacturing process is necessary. In addition, it is important to know how subsequent machining steps or operational loads affect the components’ condition. Residual stresses are a meaningful measurand for evaluating the modifications that a machining process induces into the material. The desired modifications should be specified regarding the final state for the required operational behavior. Thus, the stability of the modifications can be considered so that they can be beneficial in service. This investigation is part of fundamental research in the field of the Collaborative Research Center (CRC) “Process Signatures”. By applying defined selected loads, the effects on machined surface layers are investigated since machined components are exposed to further loads during use. For this reason, experimental process chains are applied in this work to grind-strengthened specimens as possible application cases and corresponding loads. These experimental process chains consist of defined mechanical and thermal loads, which are applied to the specimens using a thermal and mechanical testing system. Furthermore, it is investigated how these additional loads affect the modifications previously introduced by the grinding process. The influence of the additional loads is evaluated by using radiographic and electron microscopic examinations. It can be observed that the sequence, as well as the type of the applied loads, play a significant role in the development of the modifications.
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Satayeva, Zh I., N. S. Mashanova, M. E. Smagulova, N. Zh Kundyzbayeva, and G. K. Karimova. "RESEARCH OF DISPERSION PROPERTIES OF OILCAKES." Bulletin of Shakarim University. Technical Sciences, no. 1(13) (March 29, 2024): 191–97. http://dx.doi.org/10.53360/2788-7995-2024-1(13)-24.
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This article presents the results of research on the dispersion properties of oilseed cakes after oil extraction for further use in the bakery, confectionery, and pasta industries. Soybean, pumpkin, sunflower, peanut, and flax seed cakes were used in the work. Oilseed cakes are a high-protein product and can serve as an alternative gluten-free raw material for the production of flour products. The microstructural characteristics of the oilcake's surface were determined using an electron microscope-micro analyzer JXA-8230 from JEOL at the Scientific Center for Composite Materials LLP, Almaty. Sample images were obtained at an accelerating voltage of 20 kV, an electron beam current of much less than 1 nA, and aperture diaphragms No. 3 and 4. Laser analysis of particles of the applied materials up to nanoparticles was also performed. The smallest particle distribution is in sunflower cake (D10=3.177 um, D50=6.403 um, D90=10.007 um, Dav=6.529 um), the largest is in flax cake (D10=34.127 um, D50=61.243 um, D90=89.052 um, Dav=61.519 um). The research aimed to establish the microstructure and analysis of the particles of oilseed cakes and further influence the phase transformations and technological properties of bakery, confectionery, and pasta products.
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Rusakov, Vladimir N., Aleksandr V. Istomin, Larisa A. Rumyantseva, Olga V. Vetrova, Ivan G. Mikhailov, and Marina T. Vedilina. "Development of fundamental and applied research in the field of food hygiene." Hygiene and sanitation 100, no. 9 (September 20, 2021): 991–97. http://dx.doi.org/10.47470/0016-9900-2021-100-9-991-997.
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The review summarizes the directions of the results of scientific activities of the Department of Food Hygiene of the Federal Scientific Center for Hygiene named after F.F. Erisman of the Federal Service for Supervision in Protection of the Rights of Consumer and Man Wellbeing. Since the day of its foundation, the employees have been working on the examination of food products, the development of methods for the study of food and ready-made meals, the prevention of food poisoning of bacterial and non-bacterial aetiology, as well as the hygienic assessment and control of the produced utensils and containers. Based on the department, capital studies were carried out to study and rationalize the nutrition of certain groups of the population: industrial workers (engaged in the development of coal mines, working at metallurgical and mining enterprises, etc.), children and adolescents of various institutions. The article highlights the main directions of work on the study and development of methods for hygienic and chemical research of public catering and food industry products, on the hygienic assessment of pesticides and new methods of food processing technology. Attention is paid to studies on establishing migration patterns and deciphering the mechanisms of biological action of toxic substances released from materials in contact with food. A significant contribution was the scientific substantiation of hygienic food system optimization using preventive foods for contingents of persons in extreme environmental conditions, including astronauts. The result of the research was the development of medico-biological requirements for specialized products intended for feeding people in extreme conditions of space flight and wounded with damage to the skeletal system. The works of the outstanding employees of the department have made a significant contribution to the science of hygiene and sanitary practice.
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Awwaludin, Muhammad, and Ridwan Efendi. "Implementation Of The Arabic Curriculum For The Purpose Of Special Academies In The Language Center Of The Ministry Of Defense." Tadris Al-'Arabiyyah: Jurnal Pendidikan Bahasa Arab dan Kebahasaaraban 1, no. 2 (November 29, 2023): 163–71. http://dx.doi.org/10.15575/ta.v1i2.20705.
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This research starts from a thought about the objectives of curriculum implementation related to the design of learning materials, curriculum implementation, learning plans, learning evaluations, and supporting and inhibiting factors on curriculum implementation at the Language center of the Ministry of Defense. This research uses a descriptive method case study research approach. The research begins to collect data and interpellate the research results with relevant explanations and supporting theories. The results obtained from this study show that the design of learning materials has a positive impact that is contrary to a percentage of 85% in student understanding and 15% which does not affect it, from the implementation of the curriculum applied 95% has a positive impact in supporting student understanding, in terms of learning evaluation carried out the understanding obtained by students reaches 95% and supporting factors achieved up to 95% and 50% inhibitions that come from students.
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Kuznetsov, Boris N., and Vladimir I. Kuzmin. "40 years of the Institute of Chemistry and Chemical Technology of SB RAS." Radioelectronics. Nanosystems. Information Technologies. 13, no. 4 (December 29, 2021): 529–32. http://dx.doi.org/10.17725/rensit.2021.13.529.
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Information on the organization and activities of the Institute of Chemistry and Chemical Technology of the Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences is presented. Its scientific directions are highlighted, the results of fundamental scientific and applied research, participation in the creation of technologies for deep processing of mineral and organic resources of Siberia, hydrocarbons and biomass, organization of the development of the scientific potential of the region, international cooperation are noted.
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AL-Zubaidi, Azhar Ghailan Marhoon, Ali Abdul-Hussein Hani Al-Zameli, and Asaad Sasaa Agrab. "The Role of Material Flow Cost Accounting (MFCA) in Implementing the Cost Leadership Strategy and Rationalizing Operational Decisions (An Applied Study in the Baghdad Soft Drinks Company)." International Academic Journal of Economics 9, no. 2 (July 20, 2022): 15–27. http://dx.doi.org/10.9756/iaje/v9i2/iaje0905.
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The current research aims to address the knowledge bases of material flow cost accounting (MFCA) and determining its role in implementing the cost leadership strategy and rationalizing operational decisions in a way that is compatible. The research was applied in the Baghdad Company for Soft Drinks for data for the year 2020. The current research concluded possibility application material flow cost accounting (MFCA) in the research sample company, as the company was divided into quantity centers and calculating costs for each center with regard to the costs of materials, energy, system and waste management. The research concluded that the application (MFCA) can help in implementing a cost leadership strategy and rationalizing operational decisions.
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Bamborin, M. Yu, E. V. Kuzmin, S. L. Speshilov, M. M. Hahunova, A. N. Kamanin, A. V. Minin A. V., A. V. Baryshev, A. A. Sobko, and V. V. Doilnitcyna. "Overview of international experience and tests focused on cement-based materials proposed to provide the long-term safety of radioactive waste repositories." Radioactive Waste 25, no. 4 (2023): 62–71. http://dx.doi.org/10.25283/2587-9707-2023-4-62-71.
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In-depth analysis of proposed materials should always precede the construction of purpose designed facilities. These studies primarily demonstrating their feasibility, performance, service life, when applied in aggressive environments, are basically seeking to validate the timeframes of their safe operation. This article analyses the studies that have been implemented at the Canadian Nuclear Research Center (Chalk River Laboratories), at a radioactive waste storage facility at the Dukovany NPP site in the Czech Republic, at the El Cabril radioactive waste storage facility (E1 Carbil facility) in Spain, as well as the results obtained within the framework of the international CRP project.
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Beers, E. H. "Effect of Rate and Timing of Biorational Materials for Control of Second Generation White Apple Leafhopper Nymphs, 1995." Arthropod Management Tests 21, no. 1 (January 1, 1996): 6–7. http://dx.doi.org/10.1093/amt/21.1.6.
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Abstract The test was conducted in a mature apple orchard (several strains of ‘Delicious’) at the Tree Fruit Research & Extension Center, Wenatchee, WA. Treatments were replicated 4 times, with each replicate consisting of a single tree. The experimental design was a RCB, using pre-treatment WALH populations as the blocking factor. The experimental treatments (three types of horticultural mineral oil and Neemix, a neem product) were applied at various rates and timings. The timings were selected based on previous experience of WALH phenology. The late Jul timing (27 Jul) coincides with the appearance of the 4th instars, while the mid-Aug timing (14 Aug) coincides with the first appearance of adults of the second generation. Pesticides were applied with a handgun sprayer to the point of drip. WALH populations were sampled ca. weekly by counting in situ all live nymphs on 20 leaves per tree, distributed throughout the tree canopy.
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Khrystiuk, B. F., L. О. Gorbachova, and V. O. Rozlach. "APPEARANCE DATES OF ICE PHENOMENA ON THE DNIPRO CASCADE RESERVOIRS AND THE POSSIBILITY OF THEIR LONG-TERM FORECASTING." Hydrology, hydrochemistry and hydroecology, no. 2 (68) (2023): 22–32. http://dx.doi.org/10.17721/2306-5680.2023.2.3.
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Long-term forecasting of the appearance dates of ice phenomena on the Dnipro Cascade reservoirs, especially with the forecast lead time at least 1 month, has important practical and scientific significance. So, it is on the basis of this characteristic of the ice regime that the terms and depths of autumn operation of each of the six Dnipro reservoirs are determined. Along with this, there are no methods for long-term forecasting of the appearance date of ice phenomena on the Dnipro Cascade reservoirs. Obviously, this is due to the fact that the problem of developing reliable long-term forecasts of the ice regime of water bodies is one of the most difficult in hydrometeorology, which has not yet received a fully satisfactory solution. The objective of this of the research is to find connections between quantitative indicators of atmospheric processes in the North Atlantic and the appearance dates of ice phenomena on the Dnipro Cascade reservoirs, and to evaluate the possibilities of using the obtained results for operational long-term forecasting. In long-term forecasting of ice regime is used the statistical, correlational, regression analysis as well as the atmospheric indicators as predictors. Therefore, the minimum atmospheric pressure in the center of the Icelandic minimum, the North Atlantic Oscillation (NAO) pattern and the Scandinavian Oscillation (SCAND) pattern were used in the research. These indicators characterize the atmospheric processes of the North Atlantic. Materials of the Department of Meteorological Forecasts of the Ukrainian Hydrometeorological Center (Kyiv) and the National Oceanic & Atmospheric Administration USA (archival synoptic maps, the values of NAO and SCAND patterns) were used as initial data. The obtained results show that such indicators of the atmospheric processes of the North Atlantic as the minimum atmospheric pressure in the center of the Icelandic minimum, NAO and SCAND patterns undoubtedly have a fairly significant influence on the formation of the appearance dates of ice phenomena on the Dnipro Cascade reservoirs, but such an influence is not predominant and such indicators can only be partially used as predictors for long-term forecasting. Therefore, to obtain more acceptable results, it is necessary to expand the search for predictors of atmospheric processes both in space and time.
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VASILENKO, LYUDMILA, and VALENTINA SHILOVA. "Studying the spontaneous group formation processes in the context of reforming the power-administrative vertical." Public Administration 24, no. 5 (2022): 24–28. http://dx.doi.org/10.22394/2070-8378-2022-24-5-24-28.
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The article is an adaptation of the collective monograph «Reforming the power-administration vertical in the context of the implementation of national projects and activation of processes for spontaneous group formation» and based on the results of a large-scale sociological study. Scientific research was financially supported by the Russian Science Foundation Grant No. 19-18-00345 «Academic project: managing the processes of social group formation in regions with different levels of social and cultural modernization and public support of the strategy for development of the Russian Federation until 2024», under the guidance of honored scientist Alexander V. Tikhonov. In the monograph, the issues of the influence of the power-administrative vertical on the processes of group formation in the regions with different levels of civilizational development are considered through the study of group formation in the world and domestic sociology. The authors also applied several experimental sociological methods to the available research materials in the regions of Russia, selected by the Center of Sociology of Management and Social Technologies of the Institute of Sociology of the Federal Center of Theoretical and Applied Sociology of the Russian Academy of Sciences. The results obtained by the research team will serve as the basis for further development of the sociology of management.
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Xu, Dan, and Zhixin Feng. "Research on Dynamic Modeling and Application of Kinetic Contact Interface in Machine Tool." Shock and Vibration 2016 (2016): 1–9. http://dx.doi.org/10.1155/2016/5658181.
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A method is presented which is a kind of combining theoretic analysis and experiment to obtain the equivalent dynamic parameters of linear guideway through four steps in detail. From statics analysis, vibration model analysis, dynamic experiment, and parameter identification, the dynamic modeling of linear guideway is synthetically studied. Based on contact mechanics and elastic mechanics, the mathematic vibration model and the expressions of basic mode frequency are deduced. Then, equivalent stiffness and damping of guideway are obtained in virtue of single-freedom-degree mode fitting method. Moreover, the investigation above is applied in a certain gantry-type machining center; and through comparing with simulation model and experiment results, both availability and correctness are validated.
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Dong, Jian, Xiaojing Wang, Jin Zhang, Xiaoqing Xiang, Zhou Nie, and Jiexi Shen. "An Experimental Research on the Vibration of Surface-Textured Journal Bearings." Shock and Vibration 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/1261826.
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Growing attention has been paid to surface texture owing to its significance in bearing lubrication, load capacity, and wear resistance. In this paper, research emphasis is placed on the influence of texture distributions on bearing vibration and rotor stability. With microfabrication techniques, three kinds of textures configurations (0–90° partial distribution, 0–160° partial distribution, and 0–160° full distribution) are designed and applied on the lower pad surface. The experiment of journal bearings is carried out. The experiment results show that there is a significant decrease in acceleration amplitude of the textured bearings compared to nontextured bearings. Furthermore, the 0–160° partially distributed journal bearings have better vibration damping effect than another two kinds of textures, which can be verified by the shaft center orbits, Fourier spectrums, and waterfall plots.
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Ștefănica, Valentina, Ilie Mihai, Florin Cojanu, Paul-Florinel Vișan, Daniel Roșu, and Vladimir Potop. "Determining the Changes in Psychomotor Behavior of Adolescents with Special Needs." Revista Romaneasca pentru Educatie Multidimensionala 16, no. 1 (March 1, 2024): 46–70. http://dx.doi.org/10.18662/rrem/16.1/811.
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The research focuses on the development of physical, cognitive and social components in 28 adolescents (12-14 years old). They are students of two institutionalized centers of Romania. The first one is the "Sfântul Ștelian" Inclusive Education School Center of Costesti, Arges(CC-12 subjects). The second one is the "Sfânta Filofteia" Inclusive Education School Center of Ștefănești (CS-16 subjects). This research aims to identify the individual particularities in the psychomotor behavior of adolescents with special needs (SEN). The subjects were included in personalized psychomotricity programs without compromising the effectiveness of these ones. The specific needs of each individual child were taken into consideration. Primary data were obtained by comprehensively analyzing the psychological records of subjects and evaluating their motor development and physical condition. Scientific instruments used: Optojump Next optical system for movement analysis; Witty SEM intelligent semaphore; Sensamove balance miniboard and Tanita body composition analyzer. Finally, the results from the two centers were compared through statistical-mathematical analysis. The Kolmogorov-Smirnov test and, as appropriate, the Independent sample t-test and Mann-Witney U test were used. The results of the psycho-pedagogical records highlighted that the socio-demographic variables had relatively similar characteristics in the two institutionalized centers. Regarding the analysis of the psychomotor component, the comparisons between the groups distributions revealed statististically significant differences in only 18.7%. The combined results showed that psychomotor interventions can be similarly applied in the two centers, using the same program. The intervention program and the experimental results of its application are the subject of another research.
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Amin, Irsal, Khoiruddin Manahan Siregar, and Sri Minda. "Online Learning of Foreign Language Program in the Intensive Learning Class at the IAIN Padangsidimpuan Language Development Center." SALTeL Journal (Southeast Asia Language Teaching and Learning) 4, no. 1 (January 18, 2021): 11–17. http://dx.doi.org/10.35307/saltel.v4i1.60.
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Pandemic learning forcibly moved from face-to-face learning into online learning. It makes teachers and learning transformation students IAIN Language Development Center Padangsidimpuan get a new challenge, they must master the teaching materials and teaching strategies as well as the need to master Technology internet-based learning. This study was carried on to find out how language learning Arabic online and challenges in learning the language at the Center for Language Development IAIN Padangsidimpuan. The research method applied a qualitative descriptive study. Participants were comprised of 178 students and lecturers at IAIN Padangsidimpuan Language Development Center academic year 2019/2020. Research instruments used were questionnaires, and documents from online learning screenshots. Analysis of this study employed the technique of presenting data in a narrative that resulted in the conclusion of the study. The results of this research indicated that the applications used in language teaching at the Center for Development Language were google classroom and WhatsApp. Barriers to learning are inadequate internet networks in a student residence. The biggest challenge of online learning is the lecturer and the students did not concentrate. Moreover, smartphones used in learning provided adverse effects on eye health and lack of interest in language learning. Lack of evaluation of learning and also lack time management that has been specified. A decrease in student achievement on speaking skill due to no reciprocal process orally in the learning process of faculty to students. There is a need for a new strategy at the Center for Language Development IAIN Padangsidimpuan so that learning objectives can be achieved. Lastly, the most important thing is that the preparation of digital facilities and infrastructure in implementing online language learning.
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Dokhani, Sepanta, Amirreza Khataee, Anders Lundblad, and Goran Lindbergh. "Long Term Evolution of MEA for AEM." ECS Meeting Abstracts MA2023-02, no. 49 (December 22, 2023): 3429. http://dx.doi.org/10.1149/ma2023-02493429mtgabs.
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Green hydrogen technology, aimed at revolutionizing clean hydrogen production, has recently garnered significant attention. However, the pursuit of cost-effective methods for obtaining clean hydrogen remains a substantial challenge for various industries. Anion exchange membrane water electrolysis (AEMWE) has emerged as a promising solution, leveraging low-cost materials and high efficiency, thus attracting extensive interest from both researchers and industries. Yet, the adoption of AEMWE faces two major hurdles: its relative immaturity as a technology and the limited exploration of its durability and stability. Within the Production, Use, and Storage of Hydrogen (PUSH) Research Center, a collaborative effort involving Chalmers Technical University, Lund University, Umeå University, and Research Institutes of Sweden (RISE), we are dedicated to addressing the scientific and technical barriers currently hindering the seamless integration of hydrogen into sustainable energy systems. Our comprehensive research strategy encompasses every facet of hydrogen, including production, storage, distribution, and utilization, all working synergistically in harmony. One of the ongoing projects in this research center, conducted in cooperation with RISE, around enhancing the durability of components and devices through advanced testing techniques applied to AEMWE. This study present the results of a 2000-hour lifetime test and Accelerated Stress Testing (AST) conducted on a commercial Membrane Electrode Assembly (MEA), showcasing the system's remarkable stability. It must be mentioned that in the next step, these results will be compared with lifetime test and AST from MEAs from other partners within PUSH Research Center.
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Ji, Zhongpeng, Zhiping He, Yuhua Gui, Jinning Li, Yongjian Tan, Bing Wu, Rui Xu, and Jianyu Wang. "Research and Application Validation of a Feature Wavelength Selection Method Based on Acousto-Optic Tunable Filter (AOTF) and Automatic Machine Learning (AutoML)." Materials 15, no. 8 (April 12, 2022): 2826. http://dx.doi.org/10.3390/ma15082826.
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Near-infrared spectroscopy has been widely applied in various fields such as food analysis and agricultural testing. However, the conventional method of scanning the full spectrum of the sample and then invoking the model to analyze and predict results has a large amount of collected data, redundant information, slow acquisition speed, and high model complexity. This paper proposes a feature wavelength selection approach based on acousto-optical tunable filter (AOTF) spectroscopy and automatic machine learning (AutoML). Based on the programmable selection of sub nm center wavelengths achieved by the AOTF, it is capable of rapid acquisition of combinations of feature wavelengths of samples selected using AutoML algorithms, enabling the rapid output of target substance detection results in the field. The experimental setup was designed and application validation experiments were carried out to verify that the method could significantly reduce the number of NIR sampling points, increase the sampling speed, and improve the accuracy and predictability of NIR data models while simplifying the modelling process and broadening the application scenarios.
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Abbas, Khairul. "ANALISIS PELAKSANAAN PROGRAM KERJA PUSKESMAS BERDASARKAN PERMENKES NOMOR 75 TAHUN 2014 TENTANG PUSAT KESEHATAN MASYARAKAT DI KOTA BUKITTINGGI TAHUN 2017." Human Care Journal 5, no. 4 (October 12, 2020): 1078. http://dx.doi.org/10.32883/hcj.v5i4.212.
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<p> The Community Health Center is a health service facility that carries out public health efforts and individual first-level health efforts, by prioritizing promoting and preventive efforts, to achieve the highest level of public health in its working area. Yet, this time most of the programs in community health centre is just However, this time, most of existing community health centre programs should be promotive and preventive, but in reality the activities carried out by community health center on a daily basis remain curative and rehabilitative. Promotive and preventive programs that have been well designed in the community health centre often do not run well based on the previous aim.</p><p> This research was conducted in April 2018, by using a qualitative method with a phenomenological approach, data collection is done by using interview guidelines, observation, and document study through deep interviews.</p><p> Based on the research conducted, it was found that the Ministry of Health Rules No. 75 of 2014 has not yet been applied to the Community Health Center to the maximum in the Bukittinggi City Health Center. This is caused by some factors, several obstacles includes facilities and infrastructure, human resources and funding. It is expected that the Government's attention to the existing problems in order to create quality services to achieve the highest level of health.</p><p> </p><p><strong>Keywords : Community Health Centre, Promotive, Preventive </strong></p><p><strong>References : 112 (2002 - 2017)</strong></p>
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JONG, Hye-Kyung. "A Study on Effects of Parent Educational Experiences by Infants' Mothers on Parenting Stress and Child-rearing Attitude." Association of Korea Counseling Psychology Education Welfare 9, no. 2 (April 30, 2022): 199–211. http://dx.doi.org/10.20496/cpew.2022.9.2.199.
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The purpose of this study is to investigate the effects of parent educational experiences by theinfants' mothers on the parenting stress and child-rearing attitude. For research object, this studywas to select the infants' mothers who had experienced offline form of parent educationprogram at least once, which has been actually applied in the educational institutes, not thespecific parent education program. To achieve this, this study was to execute the questionnaireas final research object of 298 infants' mothers had attended in the childcare center, located inDaegu Metropolitan City. From the result of this research above, it may be summed up asfollows. First, the parent educational experiences by the infants' mothers had significant negativecorrelation with the parenting stress. In addition, the parent educational experiences had nosignificant correlation with the affective child-rearing attitude. Whereas, there was significantcorrelation with the rejecting, autonomic, dominant child-rearing attitude. Second, the parenteducational experiences had significant effect on the rejecting, autonomic, and dominantchild-rearing attitude among the whole parenting stress by the infants' mothers and the subfieldsof child-rearing attitudes by the infants' mothers.
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Ngo, Vy, Luisa Perez Lacera, Avery Harrison Closser, and Erin Ottmar. "The effects of operator position and superfluous brackets on student performance in simple arithmetic." Journal of Numerical Cognition 9, no. 1 (March 31, 2023): 107–28. http://dx.doi.org/10.5964/jnc.9535.
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For students to advance beyond arithmetic, they must learn how to attend to the structure of math notation. This process can be challenging due to students' left-to-right computing tendencies. Brackets are used in mathematics to indicate precedence but can also be used as superfluous cues and perceptual grouping mechanisms in instructional materials to direct students’ attention and facilitate accurate and efficient problem solving. This online study examines the impact of operator position and superfluous brackets on students’ performance solving arithmetic problems. A total of 528 students completed a baseline assessment of math knowledge, then were randomly assigned to one of six conditions that varied in the placement of higher-order operator and the presence or absence of superfluous brackets: [a] brackets-left (e.g., (5 * 4) + 2 + 3), [b] no brackets-left (e.g., 5 * 4 + 2 + 3), [c] brackets-center (e.g., 2 + (5 * 4) + 3), [d] no brackets-center (e.g., 2 + 5 * 4 + 3), [e] brackets-right (e.g., 2 + 3 + (5 * 4)), and [f] no brackets-right (e.g., 2 + 3 + 5 * 4). Participants simplified expressions in an online learning platform with the goal to “master” the content by answering three questions correctly in a row. Results showed that, on average, students were more accurate in problem solving when the higher-order operator was on the left side and less accurate when it was on the right compared to in the center. There was also a main effect of the presence of brackets on mastery speed. However, interaction effects showed that these main effects were driven by the center position: superfluous brackets only improved accuracy when students solved expressions with brackets with the operator in the center. This study advances research on perceptual learning in math by revealing how operator position and presence of superfluous brackets impact students’ performance. Additionally, this research provides implications for instructors who can use perceptual cues to support students during problem solving.
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Zhufeng, Lei, Qin Lvjun, Wu Xiaodong, Jin Wen, and Wang Caixia. "Research on Fault Diagnosis Method of Electro-Hydrostatic Actuator." Shock and Vibration 2021 (January 25, 2021): 1–9. http://dx.doi.org/10.1155/2021/6688420.
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Electrohydrostatic actuator is a type of actuator that uses hydraulic energy as the energy transmission carrier, which has the advantages of small size and high power. Since it is commonly used in harsh conditions such as strong vibration, high pressure, and heavy loads, condition monitoring and fault diagnosis of its hydraulic system are particularly important. This paper proposed a novel fault feature extraction method and applied to fault diagnosis of electrohydrostatic actuator. Firstly, the pressure signal of the hydraulic system is decomposed at multiple scales to obtain the center frequency of its maximum energy intrinsic mode component, and the feature data set is constructed based on the statistical features of the time domain. Then, a fault identification model of hydraulic system based on support vector machine is established. Finally, the fault classification and identification results of the hydraulic system are outputted. After a variety of method comparisons, the method proposed in this paper has a fault time ratio accuracy of 96.7%, which provides a basis and a new way for the fault diagnosis of the hydraulic system.
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Kim, Ki-Hoon, Wona Choi, Soo-Jeong Ko, Dong-Jin Chang, Yeon-Woog Chung, Se-Hyun Chang, Jae-Kwon Kim, Dai-Jin Kim, and In-Young Choi. "Multi-Center Healthcare Data Quality Measurement Model and Assessment Using OMOP CDM." Applied Sciences 11, no. 19 (October 2, 2021): 9188. http://dx.doi.org/10.3390/app11199188.
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Healthcare data has economic value and is evaluated as such. Therefore, it attracted global attention from observational and clinical studies alike. Recently, the importance of data quality research emerged in healthcare data research. Various studies are being conducted on this topic. In this study, we propose a DQ4HEALTH model that can be applied to healthcare when reviewing existing data quality literature. The model includes 5 dimensions and 415 validation rules. The four evaluation indicators include the net pass rate (NPR), weighted pass rate (WPR), net dimensional pass rate (NDPR), and weighted dimensional pass rate (WDPR). They were used to evaluate the Observational Medical Outcomes Partnership Common Data Model (OMOP CDM) at three medical institutions. These indicators identify differences in data quality between the institutions. The NPRs of the three institutions (A, B, and C) were 96.58%, 90.08%, and 90.87%, respectively, and the WPR was 98.52%, 94.26%, and 94.81%, respectively. In the quality evaluation of the dimensions, the consistency was 70.06% of the total error data. The WDPRs were 98.22%, 94.74%, and 95.05% for institutions A, B, and C, respectively. This study presented indices for comparing quality evaluation models and quality in the healthcare field. Using these indices, medical institutions can evaluate the quality of their data and suggest practical directions for decreasing errors.
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Aliyev, N. A., and T. A. Gafarov. "THE MAIN CLINICAL FEATURES AND TYPES OF SOMATIZED DEPRESSION." National Journal of Neurology 1, no. 20 (July 30, 2020): 64–67. http://dx.doi.org/10.61788/njn.v1i20.09.
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Objective. Somatic depression consisted of the development of appropriate practical recommendations, new treatment methods that consistently present the clinical, diagnostic and therapeutic aspects of depression. Materials and research methods. The study was conducted at the Mental Health Center of the Ministry of Health on 2015-2019 years, for 103 patients with somatic depression. The clinical and psychopathological method was mainly used to detect somatized depression. Results. Conclusion Masked depression is present in 72.8% of pains (sore throat) and various disorders in different parts of the body. In these cases, 53.4% suffer from discomfort and functional disturbances in the gastrointestinal tract. Conclusion. Daily change of state, worse in the evening and early morning, relief at noon; periodic, wave-like and spontaneous somatic and mental disorders; seasonality of somatic and mental disorders, most often in the autumn-spring period; ineffective somatic treatment and the positive effect of antidepressant therapy.
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Cortes, Miguel Aguilar, Martha Lilia Domínguez Patiño, Antonio Rodríguez Martínez, Rene Guardián Tapia, and Rosa María Melgoza Alemán. "Spectroscopic Characterization Technical High Resolution of Gold from a Memory Card RAM." Advanced Materials Research 818 (September 2013): 37–41. http://dx.doi.org/10.4028/www.scientific.net/amr.818.37.
Full textAbstract:
Traditionally, materials characterization instrumentation has focused mainly on particles. However, for a better fundamental understanding and various potential applications, it requires an increase in the ability of instrumentation to observe.Characterization and manipulation requires not only extreme sensitivity and accuracy, but also atomic level resolution. In this regard, it is noteworthy the importance of the central role that the various modes of microscopy play in materials characterization and measurement.Also, are particularly relevant physical properties and short-range forces, but do not play a prominent role in the characterization at the macroscopic level, represent a significant impact on the nanometer scale.The sample is studied, are the connections of the RAM, from an IBM 450.The sample characterization was performed at the scanning electron microscope of the Research center in Engineering and Applied Sciences (CIICAp) of the Autonomous University of the State of Morelos (UAEM), is observed in the presence concentrate gold, nickel and carbon.In the scanning electron microscope has the research center, we have observed the presence of gold particles included in the RAM, the particles represent 90.20% by weight, there are also carbon particles containing nickel and 1.94 and 7.86 wt% respectively.
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Castillo Rodríguez, Guadalupe Alan. "Biography Leticia Myriam Torres Guerra." EYA ACADEMY 2, no. 4 (April 30, 2024): 104–7. http://dx.doi.org/10.59335/xzws9158.
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Born in Monterrey, Nuevo León, in 1955, Dr. Leticia Torres graduated with a degree in Industrial Chemistry from the Autonomous University of Nuevo León and earned her PhD in Advanced Ceramic Materials from the University of Aberdeen, Scotland, in 1985. She holds a certification in Applied Renewable Energies and Energy Efficiency from Harvard University. Throughout her distinguished professional career, she has held key positions such as Deputy Director of Research at the Faculty of Chemical Sciences (1995-2001), Deputy Director of Scientific Development at CONACYT (2011-2013), Head of the Department of Eco-materials and Energy at the Faculty of Civil Engineering UANL (2005-2019), and leader of the Consolidated Academic Body "Development of Environmental Materials" from 2008 to the present. Since December 6, 2019, she has been serving as the General Director of the Center for Research in Advanced Materials (CIMAV).
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Powell, R. Buzz. "Laboratory Performance Testing for National Center for Asphalt Technology Pavement Test Track." Transportation Research Record: Journal of the Transportation Research Board 1823, no. 1 (January 2003): 123–32. http://dx.doi.org/10.3141/1823-14.
Full textAbstract:
An experimental facility has been constructed near the campus of Auburn University in Alabama for the purpose of conducting research to extend the lives of flexible pavements. Experimental sections on the 2.8-km Pavement Test Track are cooperatively funded by external sponsors, most commonly, state departments of transportation, with operation and research managed by the National Center for Asphalt Technology (NCAT). Forty-six different flexible pavements were installed at the facility, each at a length of 61 m. Materials and methods unique to the section sponsors were imported during construction to maximize the applicability of the results. A design lifetime of truck traffic is now being applied over a 2-year period, with field performance documented weekly. Sponsors typically compare the performance of two or more sections constructed with different materials or by different methods to obtain information that can be used to build future pavements with the greatest amount of rut resistance. In addition to assessing alternatives for sponsors, NCAT is responsible for guiding the overall effort in a direction that will address policy issues for the highway industry as a whole. Specifically, laboratory methods that have the potential to predict rutting when they are used before and during construction are being compared with field performance for every experimental mix so that the most suitable method(s) can be recommended. Results from loaded wheel testing are presented to encompass the empirical approach, while results from shear and creep testing facilitate mechanistic analyses. The success of each method will ultimately be measured by comparing the performance in the laboratory with the performance on the experimental roadway.
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Boldyreva, Veronika, Igor Morozov, and Olga Bezuglova. "Interpretation of the particle size distribution of chernozems data-driven soil." АгроЭкоИнфо 2, no. 50 (April 16, 2022): 33. http://dx.doi.org/10.51419/202122233.
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By the example of interpreting the data of the granulometric composition of chernozems of ordinary carbonate soil data centers of the Rostov region, a system of principles for working with large data sets is proposed: Logical and terminological analysis → Contextuality of data → Verification and confirmation of data → Completeness of information → Systematization and generalization (obtaining information of a higher order). Each of these principles in one form or another, not necessarily under these names, has been applied and is being applied in scientific research, including in soil science. We propose to use them in the form of a hierarchical system when working with data center materials without fail. Keywords: PARTICLE-SIZE DISTRIBUTION, DATABASE, CHERNOZEM ORDINARY CARBONATE, INTERPRETATION PRINCIPLES