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Journal articles on the topic 'Performance related materials'

Author: Grafiati

Published: 19 February 2023

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1

García-Calvo, J. L., M. Sánchez, L. Fernández-Luco, and M. C. Alonso. "Shrinkage behaviour and related corrosion performance of low-pH cementitious materials based on OPC or CAC." Materiales de Construcción 66, no. 321 (February 4, 2016): e079. http://dx.doi.org/10.3989/mc.2016.02615.

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2

Maimoni, Arturo. "Aluminum-Air Batteries: Materials Related Research." MRS Bulletin 11, no. 4 (August 1986): 19–22. http://dx.doi.org/10.1557/s0883769400069128.

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Abstract:The aluminum-air power cell is being developed as a power supply for general purpose electric vehicles because it can provide them with the range, acceleration performance, and rapid refueling capability of current internal combustion engine vehicles. This paper describes the general characteristics of the systems and the materials research effort sponsored by DOE to improve the characteristics of the air and aluminum electrodes.

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3

Savadogo, Oumarou. "On the materials issues for pefc applications." Chemical Industry 58, no. 6 (2004): 286–94. http://dx.doi.org/10.2298/hemind0406286s.

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Current limitations related to the development of effective, durable and reliable MEA components for PEFC applications are addressed. Advancements made in the development of materials (catalysts, high temperature membranes, bipolar plates, etc.) for PEFC are shown. The effect of the catalyst on PEFC performances based on cells fed by hydrogen, direct methanol, direct propane, or direct acetal fuels are presented. The progress in cell performance and cathode research are discussed. Perspectives related to CO tolerance anodes are indicated. The effect of the membranes on the cell performance are shown and parameters which may help the development of appropriate membranes depending on the fuel are suggested. Openings for the future in materials processing and development for PEFC mass production are discussed. The development of New Materials is the key factor to meet those requirements. The aim of this paper is to present challenges related to the development of new materials for PEFC applications and perspectives related to components cost issues are discussed.

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4

McDowell, David L., Hae Jin Choi, Jitesh Panchal, Ryan Austin, Janet Allen, and Farrokh Mistree. "Plasticity-Related Microstructure-Property Relations for Materials Design." Key Engineering Materials 340-341 (June 2007): 21–30. http://dx.doi.org/10.4028/www.scientific.net/kem.340-341.21.

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Design has traditionally involved selecting a suitable material for a given application. A materials design revolution is underway in which the classical materials selection approach is replaced by design of material microstructure or mesostructure to achieve certain performance requirements such as density, strength, ductility, conductivity, and so on. Often these multiple performance requirements are in conflict in terms of their demands on microstructure. Computational plasticity models play a key role in evaluating structure-property relations necessary to support simulation-based design of heterogeneous, multifunctional metals and alloys. We consider issues related to systems design of several classes of heterogeneous material systems that is robust against various sources of uncertainty. Randomness of microstructure is one such source, as is model idealization error and uncertainty of model parameters. An example is given for design of a four-phase reactive powder metal-metal oxide mixture for initiation of exothermic reactions under shock wave loading. Material attributes (e.g. volume fraction of phases) are designed to be robust against uncertainty due to random variation of microstructure. We close with some challenges to modeling of plasticity in support of design of deformation and damage-resistant microstructures.

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Woo, Yun. "Transparent Conductive Electrodes Based on Graphene-Related Materials." Micromachines 10, no. 1 (December 26, 2018): 13. http://dx.doi.org/10.3390/mi10010013.

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Transparent conducting electrodes (TCEs) are the most important key component in photovoltaic and display technology. In particular, graphene has been considered as a viable substitute for indium tin oxide (ITO) due to its optical transparency, excellent electrical conductivity, and chemical stability. The outstanding mechanical strength of graphene also provides an opportunity to apply it as a flexible electrode in wearable electronic devices. At the early stage of the development, TCE films that were produced only with graphene or graphene oxide (GO) were mainly reported. However, since then, the hybrid structure of graphene or GO mixed with other TCE materials has been investigated to further improve TCE performance by complementing the shortcomings of each material. This review provides a summary of the fabrication technology and the performance of various TCE films prepared with graphene-related materials, including graphene that is grown by chemical vapor deposition (CVD) and GO or reduced GO (rGO) dispersed solution and their composite with other TCE materials, such as carbon nanotubes, metal nanowires, and other conductive organic/inorganic material. Finally, several representative applications of the graphene-based TCE films are introduced, including solar cells, organic light-emitting diodes (OLEDs), and electrochromic devices.

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6

Saeed, Athar, Reza Ashtiani, Richard L. Boudreau, T. Edil, and S. W. Dean. "Performance Related Tests on Recycled Materials for Sustainable Design of Pavement Systems." Journal of ASTM International 8, no. 7 (2011): 103655. http://dx.doi.org/10.1520/jai103655.

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7

Wang, Hongkang, Ruifeng Qian, Yonghong Cheng, Hong-Hui Wu, Xianwen Wu, Kunming Pan, and Qiaobao Zhang. "Micro/nanostructured TiNb2O7-related electrode materials for high-performance electrochemical energy storage: recent advances and future prospects." Journal of Materials Chemistry A 8, no. 36 (2020): 18425–63. http://dx.doi.org/10.1039/d0ta04209a.

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This Review summarized the latest progress in structural engineering, material fabrication and enhancement of the electrochemical performances of micro/nanostructured TiNb₂O₇ and its analogues for high-performance energy storage systems.

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8

Bak, Tadeusz, Janusz Nowotny, and Quang Vinh Nguyen. "Titanium Dioxide Photocatalysts: Performance Related Properties." Solid State Phenomena 162 (June 2010): 329–35. http://dx.doi.org/10.4028/www.scientific.net/ssp.162.329.

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The present work considers the performance-related properties of TiO2-based photosensitive semiconductors as photocatalysts for water purification and photoelectrodes for water splitting. These properties, including electronic structure, charge transport, surface properties, and near-tosurface properties, have an effect on light absorption and its conversion into chemical energy, and are closely related to defect disorder. Therefore, defect chemistry may be used as a framework for their modification in order to achieve enhanced performance. The present work considers the relationships between these specific performance-related properties and defect disorder.

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9

Caccese, Michael S., Clair Pagnano, Eden Rohrer, and Xiomara Corral. "FINRA issues interpretive guidance on related performance in institutional communications." Journal of Investment Compliance 18, no. 4 (November 6, 2017): 36–39. http://dx.doi.org/10.1108/joic-08-2017-0058.

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Purpose To analyze the June 9, 2017 Financial Industry Regulatory Authority, Inc. (“FINRA”) interpretive letter permitting the use of Related Performance Information in continuously offered closed-end registered investment company sales materials distributed solely to institutional investors. Design/methodology/approach Provides background, including the application of FINRA Rule 2210, and explains the conditions under which fund marketing materials may contain Related Performance Information. Findings While the interpretive letter will not result in a fundamental shift in the Industry’s approach to providing Related Performance Information of open- and closed-end funds to institutional investors, it also represents FINRA’s ongoing recognition that communications provided solely to institutional investors do not raise the same investor protection concerns as communications provided to retail investors. Originality/value Expert guidance from experienced investment management and investment fund lawyers.

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10

Gedafa, Daba S., Mustaque Hossain, Lon S. Ingram, and Rick Kreider. "Performance-Related Specifications for PCC Pavements in Kansas." Journal of Materials in Civil Engineering 24, no. 4 (April 2012): 479–87. http://dx.doi.org/10.1061/(asce)mt.1943-5533.0000405.

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11

Kandhal, Prithvi S., Cynthia Y. Lynn, and Frazier Parker. "Characterization Tests for Mineral Fillers Related to Performance of Asphalt Paving Mixtures." Transportation Research Record: Journal of the Transportation Research Board 1638, no. 1 (January 1998): 101–10. http://dx.doi.org/10.3141/1638-12.

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Various studies have shown that the properties of mineral filler, especially the material passing through a 0.075-mm (No. 200) sieve (generally called P200 material), have a significant effect on the performance of asphalt paving mixtures in terms of permanent deformation, fatigue cracking, and moisture susceptibility. However, researchers have employed different characterization tests for evaluating the P200 materials. This study was undertaken to determine which P200 characterization tests are most related to the performance of asphalt paving mixtures. Six P200 materials representing a wide range of mineralogical composition and particle size were used. These P200 materials were characterized by six tests including Rigden voids, particle size analysis, and methylene blue test. Mixes were prepared with two fines to asphalt ratios (0.8 and 1.5) by weight. Mix validation tests included the Superpave shear test for evaluating permanent deformation and fatigue cracking, and the Hamburg wheel tracking test and AASHTO T283 for evaluating moisture susceptibility of the 12 mixtures containing different P200 materials and fines to asphalt ratios. The particle sizes in microns corresponding to 60 and 10 percent passing and the methylene blue test were determined to be related to the performance of asphalt paving mixtures.

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12

Georgees, Romel N., Rayya A. Hassan, Robert P. Evans, and Piratheepan Jegatheesan. "An evaluation of performance-related properties for granular pavement materials using a polyacrylamide additive." International Journal of Pavement Engineering 19, no. 2 (April 18, 2016): 153–63. http://dx.doi.org/10.1080/10298436.2016.1172710.

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13

Kadri, E. H., S. Aggoun, S. Kenai, and A. Kaci. "The Compressive Strength of High-Performance Concrete and Ultrahigh-Performance." Advances in Materials Science and Engineering 2012 (2012): 1–7. http://dx.doi.org/10.1155/2012/361857.

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The compressive strength of silica fume concretes was investigated at low water-cementitious materials ratios with a naphthalene sulphonate superplasticizer. The results show that partial cement replacement up to 20% produce, higher compressive strengths than control concretes, nevertheless the strength gain is less than 15%. In this paper we propose a model to evaluate the compressive strength of silica fume concrete at any time. The model is related to the water-cementitious materials and silica-cement ratios. Taking into account the author's and other researchers’ experimental data, the accuracy of the proposed model is better than 5%.

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14

Lilholt, Hans, and Bo Madsen. "Natural composites: cellulose fibres and the related performance of composites." International Journal of Materials Engineering Innovation 5, no. 2 (2014): 100. http://dx.doi.org/10.1504/ijmatei.2014.060326.

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15

Chen, Kunfeng, and Dongfeng Xue. "Materials chemistry toward electrochemical energy storage." Journal of Materials Chemistry A 4, no. 20 (2016): 7522–37. http://dx.doi.org/10.1039/c6ta01527a.

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Materials chemistry focuses on all aspects of the production of electrode materials and on the properties or applications of materials related to energy storage, which plays an important role in designing high-performance electrode materials.

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16

Mirza, Saeed. "Durability design of infrastructure and some related issues." Canadian Journal of Civil Engineering 33, no. 6 (June 1, 2006): 650–72. http://dx.doi.org/10.1139/l06-078.

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The life cycle performance of any infrastructure should be taken into consideration in its design, its construction, its maintenance, its operation, and when needed, its rehabilitation. The protection of infrastructure must be holistic, taking into account long-term socioeconomic and environmental considerations and the impact of the global climate change. Fulfilling the requirements of the ultimate and serviceability limit states over the service life of the facility requires an understanding of the use of the system, the deterioration response of the materials and their components when subjected to aggressive environments, and how this deterioration can be prevented or significantly delayed by preventive, remedial, and routine maintenance. The composition, microstructure, macrostructure, and various modes of deterioration of materials used in construction (steel, wood, concrete) are reviewed, along with possible remedial measures. The development of concrete as a construction material, its durability, and the relevant durability provisions in the various Canadian Standards Association standards are reviewed briefly. Current European practice and the 1990 Comité Euro-International du béton Design Guide for Durable Concrete Structures are evaluated. The engineer's responsibility for durable performance of a facility and the importance of durability audits are also examined.Key words: aggressive environment, construction materials, deterioration, durability, durability audits, life cycle performance, macrostructure, microstructure, socioeconomic and environmental considerations, sustainability.

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17

Zhao, Yu Ping, and Yu Hai Xu. "Research on the 45Mn Materials Forging Properties." Advanced Materials Research 813 (September 2013): 359–63. http://dx.doi.org/10.4028/www.scientific.net/amr.813.359.

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In this paper, we study the 45Mn steel material forging performance, and the results show that: as long as choosing reasonable forging process parameters, such as the crack forging defects can be avoided. Through the forging of 45Mn material internal organizational performance in microscopic analysis, found that the microstructure and beginning the determination of forging closely related temperature range, so as to determine the 45Mn steel forging process, for 45Mn steel forging production provides the practical feasible forging process. Keywords: 45Mn, Forging performance, Microstructure, Microscopic analysis, Forging process

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18

Paine, K. A., and R. K. Dhir. "Recycled aggregates in concrete: a performance-related approach." Magazine of Concrete Research 62, no. 7 (July 2010): 519–30. http://dx.doi.org/10.1680/macr.2010.62.7.519.

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19

Richardson, Alan, and Rhys Ovington. "Temperature related steel and synthetic fibre concrete performance." Construction and Building Materials 153 (October 2017): 616–21. http://dx.doi.org/10.1016/j.conbuildmat.2017.07.101.

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20

Rossol, Monona, and Mark Gottsegen. "ASTM Standards for the Performance, Quality and Health Labeling of Artists' Paints and Related Materials." Journal of the American Institute for Conservation 37, no. 2 (1998): 231. http://dx.doi.org/10.2307/3179807.

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21

Okamoto, T., K. Fukui, M. Nakamoto, T. Kishi, T. Okishio, T. Yamagami, N. Kanamori, H. Kishi, and E. Hiraoka. "High-performance liquid chromatography of coenzyme Q-related compounds and its application to biological materials." Journal of Chromatography B: Biomedical Sciences and Applications 342 (January 1985): 35–46. http://dx.doi.org/10.1016/s0378-4347(00)84487-4.

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22

Albayati, Amjad H., and Waleed Arrak Turkey. "The Effect of Using Sustainable Materials on the Performance-Related Properties of Asphalt Concrete Mixture." Civil Engineering Journal 5, no. 12 (December 1, 2019): 2727–37. http://dx.doi.org/10.28991/cej-2019-03091444.

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Sustainability is very important in this world at this time. One of the best materials used for sustainability in asphalt concrete pavements is the warm mix asphalt (WMA) as well as the reclaimed asphalt pavement (RAP). WMA technology has the ability to reduce production temperature to reduce the fuel usage and emissions. RAP is the old concrete asphalt mixture that is out of service and using it again leads to preservation of the virgin material. This search studied the viability of using WMA with different percentages of RAP (10%, 30%, and 50%) and compared them with control hot mix asphalt (HMA) and WMA. The Marshall properties, Tensile strength ratio (TSR), rut depth and fatigue life were determined in this work. The results showed that the tensile strength ratio (TSR) for HMA was better than that for WMA by 6%, rut depth for HMA was (4.37 mm) lower than that for WMA was (6.5mm), better fatigue life was obtained for WMA was (700 cycle) as compared to HMA was (500 cycle). In case of WMA with RAP (WMA-RAP), when the percentage of RAP increased with WMA, the moisture damage resistance improved by 2.5%, 13.3% and 15.4% for G1, G3 and G5 respectively, also the rutting resistance improved by 34.6%, 48% and 62.3% for G1, G3 and G5 respectively, but deteriorated of fatigue life by 45.8%, 74% and 88.5% for G1, G3 and G5 respectively.

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23

Carter, Ellen C. "ASTM Standards for the Performance, Quality, and Health Labeling of Artists' Paints and Related Materials." Color Research & Application 22, no. 6 (December 1997): 420. http://dx.doi.org/10.1002/(sici)1520-6378(199712)22:6<420::aid-col11>3.0.co;2-c.

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24

Mao, Bo, Arpith Siddaiah, Yiliang Liao, and Pradeep L. Menezes. "Laser surface texturing and related techniques for enhancing tribological performance of engineering materials: A review." Journal of Manufacturing Processes 53 (May 2020): 153–73. http://dx.doi.org/10.1016/j.jmapro.2020.02.009.

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25

ISHIKAWA, HIROSHI. "Introductory course in "new materials related to energy utilization". (3) Development of ceramic gas turbines and necessary performance of materials." Journal of the Fuel Society of Japan 68, no. 12 (1989): 1069–80. http://dx.doi.org/10.3775/jie.68.12_1069.

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26

Lin, Yifeng, Shuo Zhang, Lixiu Guan, and Junguang Tao. "Prospect of Ni-related metal oxides for high-performance supercapacitor electrodes." Journal of Materials Science 56, no. 3 (October 16, 2020): 1897–918. http://dx.doi.org/10.1007/s10853-020-05408-6.

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27

Balkányi, Péter. "Charting Possible Performance Indicators Related to Digital Learning Content Supported Learning." Academic and Applied Research in Military and Public Management Science 20, no. 2 (2021): 97–119. http://dx.doi.org/10.32565/aarms.2021.2.8.

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During my professional carrier, I participated in several digital content development projects, and in my doctoral dissertation I examined the ecosystem of e-learning development according to the Design Science (DS) methodology. Partly from the practical experience, partly from the comprehensive research, I perceived that few indicators – which can be applied in practice – were determined about the effectiveness and efficiency of a digital learning content development process.Traditionally, projects can be evaluated by the ‘iron triangle’: the project is completed on time, within budget in right quality. This approach is not fundamentally wrong, but as several studies point out, it does not provide a complete picture, can even lead to false conclusions, and can determine wrong decisions.The present work aims to focus specifically on the e-learning content created as a product of professional authoring tools (e.g. the end result is a SCORM standard package). This paper does not seek to take into account the whole development process. In addition to the focus on the content development, it is also important to underline that the background of these findings is in adult learning environments in large or multinational corporations.In this article, I summarise the key technological, methodological and financial indicators (both key performance indicators and key result indicators) for the learner- and content-centred e-learning materials. Together, these indicators can form a system that gives the opportunity to evaluate and compare e-learning materials in its complexity.

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28

Sousa, Susana P. B., Tânia Peixoto, Raquel M. Santos, Ascensão Lopes, Maria da Conceição Paiva, and António T. Marques. "Health and Safety Concerns Related to CNT and Graphene Products, and Related Composites." Journal of Composites Science 4, no. 3 (August 4, 2020): 106. http://dx.doi.org/10.3390/jcs4030106.

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The use of Carbon Nanotubes (CNT) and Graphene increased in the last decade and it is likely to keep increasing in the near future. The attractiveness of their properties, particularly the possibility to enhance the composites performance using a tailor made methodology, brings new materials, processes and products for highly demanding industrial applications and to the market. However, there are quite a lot of health/safety issues, as well as lack of understanding and standards to evaluate their effects. This paper starts with a general description of materials, processes and products dealing with CNT and graphene. Then, an overview of concerns related to the health and safety when handling, researching, producing and using products that include these materials is presented. It follows a risk management approach with respect to simulation and evaluation tools, and considering the consensual limits already existing for research, industry and consumers. A general discussion integrating the relevant aspects of health and safety with respect to CNT and graphene is also presented. A proactive view is presented with the intention to contribute with some guidelines on installation, maintenance, evaluation, personal protection equipment (PPE) and personnel training to deal with these carbon-based nanomaterials in research, manufacture, and use with composite materials.

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29

Zhang, Dao Hua. "Semiconducting Materials for Photonic Technology." Materials Science Forum 859 (May 2016): 96–103. http://dx.doi.org/10.4028/www.scientific.net/msf.859.96.

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Semiconducting materials are important photonic materials and the technologies developed have been utilized in many fields of the modern society and they are closely related to the quality of our life. The main applications of the materials are for light source and sensing originated from interaction of photons and matters. In this invited talk, I will first present our work on the properties of the semiconducting materials and their applications as lasers and photodetectors, and then present integrated hybrid subwavelength structures which show significant enhancement on device performance. It is believed that complex hybrid structures which combine quantum-and hetero-structures made of semiconducting materials, and subwavelength structure for performance enhancement are the main focus in the near future.

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30

Chakraborty, Pranay, Tengfei Ma, Amir Hassan Zahiri, Lei Cao, and Yan Wang. "Carbon-Based Materials for Thermoelectrics." Advances in Condensed Matter Physics 2018 (July 4, 2018): 1–29. http://dx.doi.org/10.1155/2018/3898479.

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This article reviews the recent progress towards achieving carbon-based thermoelectric materials. A wide range of experimental and computational studies on carbon allotropes and composites is covered in this review paper. Specifically, we discuss the strategies for engineering graphene, graphene nanoribbon, graphene nanomesh, graphene nanowiggle, carbon nanotube (CNT), fullerene, graphyne, and carbon quantum dot for better thermoelectric performance. Moreover, we discuss the most recent advances in CNT/graphene-polymer composites and the related challenges and solutions. We also highlight the important charge and heat transfer mechanisms in carbon-based materials and state-of-the-art strategies for enhancing thermoelectric performance. Finally, we provide an outlook towards the future of carbon-based thermoelectrics.

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31

Marvila, Markssuel Teixeira, Afonso Rangel Garcez de Azevedo, Paulo R. de Matos, Sergio Neves Monteiro, and Carlos Maurício Fontes Vieira. "Materials for Production of High and Ultra-High Performance Concrete: Review and Perspective of Possible Novel Materials." Materials 14, no. 15 (July 31, 2021): 4304. http://dx.doi.org/10.3390/ma14154304.

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This review article proposes the identification and basic concepts of materials that might be used for the production of high-performance concrete (HPC) and ultra-high-performance concrete (UHPC). Although other reviews have addressed this topic, the present work differs by presenting relevant aspects on possible materials applied in the production of HPC and UHPC. The main innovation of this review article is to identify the perspectives for new materials that can be considered in the production of novel special concretes. After consulting different bibliographic databases, some information related to ordinary Portland cement (OPC), mineral additions, aggregates, and chemical additives used for the production of HPC and UHPC were highlighted. Relevant information on the application of synthetic and natural fibers is also highlighted in association with a cement matrix of HPC and UHPC, forming composites with properties superior to conventional concrete used in civil construction. The article also presents some relevant characteristics for the application of HPC and UHPC produced with alkali-activated cement, an alternative binder to OPC produced through the reaction between two essential components: precursors and activators. Some information about the main types of precursors, subdivided into materials rich in aluminosilicates and rich in calcium, were also highlighted. Finally, suggestions for future work related to the application of HPC and UHPC are highlighted, guiding future research on this topic.

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32

Sposito, Cesare, and Francesca Scalisi. "Earth Bricks with Halloysite Nanoclay: Research and Experimentation for the Sustainability of Materials." Solid State Phenomena 324 (September 20, 2021): 159–65. http://dx.doi.org/10.4028/www.scientific.net/ssp.324.159.

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This paper illustrates the experimentation activities on rammed earth and nanotechnologies. The experimental research was carried out with the aim of improving the performance of rammed earth bricks with clay nanotubes, creating a ‘new material’ with reduced embodied energy and low CO2 emissions into the atmosphere. Specifically, the analysed performances are related to the compressive strength that expand their area of use as a building material.

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33

Zhang, Xunli, and Stephen J. Haswell. "Materials Matter in Microfluidic Devices." MRS Bulletin 31, no. 2 (February 2006): 95–99. http://dx.doi.org/10.1557/mrs2006.22.

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AbstractAs more micro- and nanofluidic methodologies are developed for a growing number of diverse applications, it becomes increasingly apparent that the choice of substrate material can have a profound effect on the eventual performance of a device. This is due mostly to the high surface-to-volume ratio that exists within such small structures. In addition to the obvious limitations related to the choice of solvent, operating temperatures, and pressure, the method of fluidic pumping—in particular, an electrokinetics-based methodology using a combination of electro-osmotic and electrophoresis flows—can further complicate material choice. These factors, however, are only part of the problem; once chemicals or biological materials (e.g., proteins or cells) are introduced into a microfluidic system, surface characteristics will have a profound influence on the activity of such components, which will subsequently influence their performance. This article reviews the common types of materials that are currently used to fabricate microfluidic devices and considers how these materials may influence the overall performance associated with chemical and biological processing. Consideration will also be given to the selection of materials and surface modifications that can aid in exploiting the high surface properties to enhance process performance.

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34

Hurt, Robert H., and Soo W. Lee. "Environmentally Motivated Materials Research." MRS Bulletin 26, no. 11 (November 2001): 867–70. http://dx.doi.org/10.1557/mrs2001.226.

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“Environmentally conscious” materials, or “ecomaterials,” are those specifically designed to minimize adverse effects on the environment while maintaining acceptable performance and a competitive price. Related terms include “environmentally friendly” materials, or “environmentally preferable” materials, which are essentially synonymous. A notable geographic trend was observed in relation to this terminology: a recent computer search of the scientific literature under “ecomaterials” produced eight hits, all from authors in Asia, while “environmentally friendly materials” produced six hits, primarily from authors in North America and Europe.

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35

Xu, Li Ling. "Analysis of the Movement of Materials." Applied Mechanics and Materials 484-485 (January 2014): 80–83. http://dx.doi.org/10.4028/www.scientific.net/amm.484-485.80.

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The development of sportswear is closely related to the development of scientific and technological,the improvement of the communitys civilization.As the professional sportswear design and production are close to new material,high-tech sportswear will not only help the athletes improve performance and raise campaign skills,but also more advantageous in protecting athletes safety.

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36

Pavlović, Danijela, Miloš Pavlović, and Vladimir Grdinić. "Overview of individual models of companies performance reporting: Business performances reporting." Ekonomski signali 16, no. 2 (2021): 77–92. http://dx.doi.org/10.5937/ekonsig2102077p.

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For years, financial statements have been key instruments of the financial reporting process and a way for companies to communicate, primarily with external, but also internal stakeholders. However, modern business conditions of the company have imposed the need not only for adjustments in the processes related to management and operations, but also in the process of financial reporting and it lead to the business reports. The aim of this paper is to point out the need for reporting on all business performance of the company and not only financial, as well as to point out possible solutions in the form of certain conceptual frameworks. The subject of this paper are various forms of reporting on business performance of the company. The object of research are companies and their performance.

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37

Wu, Rongzong, John Harvey, Jeffery Buscheck, and Angel Mateos. "Development and Demonstration of Hot Mix Asphalt Design Guidance for Mix Performance-Related Specifications." Transportation Research Record: Journal of the Transportation Research Board 2673, no. 2 (February 2019): 379–91. http://dx.doi.org/10.1177/0361198119826082.

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As they adopt mechanistic-empirical (ME) methods for flexible pavement design, road agencies are starting to incorporate performance-related specifications (PRS) for hot mix asphalt materials to assure that the as-built materials meet the performance requirements assumed in the pavement structural design. PRS pose new challenges for materials producers and contractors who have never had to relate volumetric mix design parameters to performance requirements such as fatigue life and rutting resistance. The objective of this paper is to describe the development of guidance for materials producers and contractors to support their decision making with regard to changes to mix designs to meet PRS requirements. The guidance was first developed based on known experience. To validate the guidance and demonstrate its usage, a production mix meeting Superpave volumetric requirements for California state highways was selected as the starting point for a set of adjustments applied to the mix. The effects of each adjustment were evaluated by conducting laboratory tests to determine mechanistic performance parameters used in structural design. The mechanistic performance parameters evaluated in this study include stiffness, fatigue resistance, and rutting resistance. The initial experience-based mix design guidance was found to be generally consistent with the laboratory test results for the example mix, albeit with some minor exceptions. The mix design guidance was then revised based on findings from this study. It is recommended that the revised guidance be used as non-mandatory advisory information for projects with PRS and that it be further improved with more results.

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Chen, Kunfeng, and Dongfeng Xue. "Cu-based materials as high-performance electrodes toward electrochemical energy storage." Functional Materials Letters 07, no. 01 (February 2014): 1430001. http://dx.doi.org/10.1142/s1793604714300011.

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Cu -based materials, including metal Cu and semiconductors of Cu 2 O and CuO , are promising and important candidates toward practical electrochemical energy storage devices due to their abundant, low cost, easy synthesis and environmentally friendly merits. This review presents an overview of the applications of Cu -based materials in the state-of-art electrochemical energy storage, including both lithium-ion batteries and supercapacitors. The synthesis chemistry, structures and the corresponding electrochemical performances of these materials are summarized and compared. During chemical synthesis and electroactive performance measurement of Cu -based materials, we found that Cu – Cu 2 O – CuO sequence governs all related transformations. Novel water-soluble CuCl 2 supercapacitors with ultrahigh capacitance were also reviewed which can advance the understanding of intrinsic mechanism of inorganic pseudocapacitors. The major goal of this review is to highlight some recent progresses in using Cu -based materials for electrochemical energy storage.

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Tapping, R. L., Y. C. Lu, D. S. Mancey, and Z. H. Walker. "Assessing Long-Term Performance of CANDU® Out-of-Core Materials." AECL Nuclear Review 1, no. 1 (June 1, 2012): 5–11. http://dx.doi.org/10.12943/anr.2012.00002.

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As so-called second-generation power reactors are approaching the end of their original design lives, assessments are being made to determine the feasibility and economics of extending plant life. Although components exposed to neutron and gamma irradiation are often those of most concern in terms of in-service ageing and continued fitness for service, ageing of out-of-core components can also limit the possibility of extended service life beyond design life. In CANDU® reactors, life extension decisions occur when the Zr-2.5Nb pressure tubes reach end of life, typically after about 25 years of service for the first CANDU-6 units. At the time of pressure tube replacements, the remaining life predictions for several other major components or systems provide the information required to determine life extension feasibility. Several CANDU reactors are currently being refurbished, with others planned, and experience to date shows that the steam generators, heat transport system piping and various balance of plant piping systems are typically those requiring careful assessment to ensure successful refurbishment. In this paper, we discuss AECL R&D that is oriented towards providing the chemistry and materials inputs required to assess current condition and predict future ageing of CANDU reactor out-of-core components and systems, and in particular steam generators (Alloy 800 tubing and carbon steel internals), feeder pipes and related heat transport system piping (carbon steel flow accelerated corrosion, feeder cracking). Systems and components that may impact future life will also be discussed, along with the related R&D, and this includes balance of plant system piping (feedwater piping and buried piping), cables and concrete structures.

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Rangaraju, Prasada Rao. "Development of Some Performance-Based Material Specifications for High-Performance Concrete Pavement." Transportation Research Record: Journal of the Transportation Research Board 1834, no. 1 (January 2003): 69–76. http://dx.doi.org/10.3141/1834-09.

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In collaboration with FHWA, the Minnesota Department of Transportation (Mn/DOT) has successfully completed its first experimental high-performance concrete pavement (HPCP) project under the Testing and Evaluation Program (TE-30). This project is one of the 22 projects funded under the TE-30 Program. With a structural design life of 60 years, this HPCP is unique in that it incorporates significant changes to the existing Mn/DOT specifications on concrete materials. Some of the new materials-related specifications developed as a part of this project are based on performance criteria that influence long-term durability of the pavement structure. The background and considerations for selecting the new performance measures are discussed, and test results are presented that evaluate the practical feasibility of establishing and achieving the performance specifications.

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Budi Muljono, Retno A., Farida L. Darsono, Johannes J. C. Scheffer, and Robert Verpoorte. "Assay of 2,3-dihydroxybenzoic acid and related compounds in plant materials by high-performance liquid chromatography." Journal of Chromatography A 927, no. 1-2 (August 2001): 39–45. http://dx.doi.org/10.1016/s0021-9673(01)01098-6.

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Kwon, Inkyu. "Combustible Performance of Floor Finishing Materials and Coating Applied to Nuclear Power Plants." Journal of the Korean Society of Hazard Mitigation 20, no. 4 (August 31, 2020): 139–44. http://dx.doi.org/10.9798/kosham.2020.20.4.139.

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Finishing construction materials applied to nuclear power plants and other attached structures are manufactured domestically; however, their fire-related performance has not yet been clarified, and data exist only for common materials with general purposes. Finishing construction materials must meet the requirement of Nuclear Regulatory Commission (NRC), which is regarded as a global standard in the nuclear power plant industry. In this study, to support data when a new guideline for evaluation of fire safety in nuclear power plant and the attached structures thereof are prepared, the finishing materials on the floor and the coating applied onto the floor and other portions were selected and tested using related standards of two nations. The results showed that there were differences in the manner of evaluation and testing. Moreover, certain criteria did not meet Korean standards. Nevertheless, most criteria were satisfied with testing methods suggested by the NRC.

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Ma, Rui, Zetong Chen, Danna Zhao, Xujing Zhang, Jingting Zhuo, Yajiang Yin, Xiaofeng Wang, Guowei Yang, and Fang Yi. "Ti3C2Tx MXene for electrode materials of supercapacitors." Journal of Materials Chemistry A 9, no. 19 (2021): 11501–29. http://dx.doi.org/10.1039/d1ta00681a.

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The most recent advances in Ti₃C₂T_x-based supercapacitor electrodes are comprehensively reviewed, with an emphasis on the vital role that Ti₃C₂T_x MXene plays in the remarkable electrochemical performance and related mechanisms.

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Wu, Xue Lian, Wei Min Huang, Hai Bao Lu, Chang Chun Wang, and Hai Po Cui. "Characterization of polymeric shape memory materials." Journal of Polymer Engineering 37, no. 1 (January 1, 2017): 1–20. http://dx.doi.org/10.1515/polyeng-2015-0370.

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Abstract After a short discussion of various shape memory related phenomena and the basic working mechanisms behind the shape memory effect (SME) in polymeric shape memory materials (SMMs), standard techniques and procedures to characterize these types of materials are reviewed in details (including the concerns in the selection of testing methods and parameters). Although the focus of this paper is on the heating-responsive SME, important issues in the chemo-responsive SME are addressed. Furthermore, some other shape memory related phenomena, such as various kinds of temperature memory effect (TME), and multiple-SME etc., and optimization of the shape memory performance of a shape memory polymer (SMP) via tailoring the programming parameters are included.

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Li, Lisa W., Meredith Kupinski, Madellyn Brown, and Russell Chipman. "Comparing Classification Performance of Mueller Matrix Parameters for Diffuse Materials." Electronic Imaging 2020, no. 14 (January 26, 2020): 263–1. http://dx.doi.org/10.2352/issn.2470-1173.2020.14.coimg-263.

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This work compares the material classification performance of Mueller matrix polarization imaging to RGB imaging. White painted wood and white fabric samples are selected to create a classification task that is challenging for RGB imaging. A Mueller Matrix Imaging Polarimeter with a 30° full field of view is used to capture the Mueller Matrix images at nominal red, green, and blue wavelengths across multiple specular scatter angles. A Bayesian ideal observer model is used to evaluate classification performance. Performance is quantified by the Area under (AUC) the Receiver Operating Characteristic (ROC) curve. An AUC = 1 is perfect detection and AUC = 0.5 is the performance of guessing. The ensemble average AUC does not exceed 0.70 for RGB irradiance data. The ensemble average AUC for all 16 individual Mueller elements is greater than 0.95. Various combinations of Mueller matrix elements are also tested. Elements related to diattenuation and polarizance are nearly perfect classifiers for large scatter angles but the AUC minimum is 0.60 at 20°. Depolarization index is the highest performing parameter out of all tested polarization parameters for scatter angles ≥70° where AUC ≥0.98.

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SIRGHIE, Alexandru, Mihai OPROESCU, Gabriel Vasile IANA, and Adriana Gabriela PLAIASU. "Nanostructured materials for CBRNdetection." University of Pitesti. Scientific Bulletin - Automotive Series 30, no. 1 (November 1, 2020): 1–8. http://dx.doi.org/10.26825/bup.ar.2020.009.

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Nanomaterials are gaining significance in technological applications due to their chemical, physical, and mechanical properties and enhanced performance when compared with their bulkier counterparts. The synthesis of nanostructured materials has led to a significant increase in properties (thermal, optical, electrical, magnetic, mechanical) as well as the discovery of materials with new properties due the fact that at the nanoscale the materials have a high surface area Most applications of nanomaterials in sensors are related to their synthesis. In this paper we report recent trends in applications of various nanomaterials such as nanoparticles, carbon nanotubes, nanowires andgraphene to detect CBRN agents.

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Kim, Seongkyum, and Kwanho Lee. "Performance Improvement of Underground Pipe Line Foundation Using Recycled Materials." Journal of the Korean Society of Hazard Mitigation 22, no. 2 (April 30, 2022): 225–30. http://dx.doi.org/10.9798/kosham.2022.22.2.225.

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According to the Seoul City survey, about 84% of the occurrence of ground subsidence was the main cause of damage to the sewer pipe, and it was related to the aging of the sewage pipe foundation and the sewage pipe itself. To reduce the damage, a combination of field-assembled recycled plastic foundation and a fluid backfill material was applied. The bearing capacity, settlement, and pipe safety factor were evaluated for comparison with the existing crushed stone foundation and concrete foundation. The change in settlement was relatively small, according to the type of backfill used in the analysis. As for the support method used when selecting the foundation for the sewage pipe for a rigid pipe, it was found that applying a fixed type rather than a free type improved the safety of the pipe. The field-fabricated recycled plastic foundation has less material rigidity than the concrete foundation, but to compensate for this, applying the fluid backfill using 2% to 4% cement had the effect of increasing adhesion and enhancing the strength of the backfilling material, thus increasing the safety of the installed pipe.

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Huang, Xingang. "Towards High-Performance Sodium-Ion Batteries: Starting from Electrode Materials." Highlights in Science, Engineering and Technology 17 (November 10, 2022): 273–81. http://dx.doi.org/10.54097/hset.v17i.2615.

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Lithium-ion batteries (LIBs), the most successful secondary battery in the energy storage field, have been deeply and widely used in all aspects of life (such as transportation commuting, electronic products, and clean energy storage), but the development of the most commercially successful battery is in crisis due to the problems of high cost and resource shortage. Sodium has attracted attention in energy storage because of its rich resources and low price. However, sodium ions have a larger ion radius compared with LIBs, which results in worse ionic conductivity. Therefore, this characteristic of sodium ions has become an important factor restricting the development of sodium-storage electrode materials. Whereas the restriction of developing electrode materials in sodium-ion batteries (SIBs), the emphasis of research has focused on enhancing the electrochemical performance of high-performance anode and cathode materials and promoting the commercial application of SIBs. This paper will introduce the current research status and progress in cathode and anode materials of SIBs, and the future development direction of cathode and anode materials for SIBs will be summarized by analyzing the mechanism and defects of related electrode materials.

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Mendes, T. M., W. L. Repette, and P. J. Reis. "Effects of nano-silica on mechanical performance and microstructure of ultra-high performance concrete." Cerâmica 63, no. 367 (September 2017): 387–94. http://dx.doi.org/10.1590/0366-69132017633672037.

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Abstract The use of nanoparticles in ultra-high strength concretes can result in a positive effect on mechanical performance of these cementitious materials. This study evaluated mixtures containing 10 and 20 wt% of silica fume, for which the optimum nano-silica content was determined, i.e. the quantity of nano-silica that resulted on the higher gain of strength. The physical characterization of raw materials was done in terms of particle size distribution, density and specific surface area. Chemical and mineralogical compositions of materials were obtained through fluorescence and X-ray diffraction. The mechanical performance was evaluated by compressive strength, flexural strength and dynamic elastic modulus measurements. The microstructural analysis of mixtures containing nano-silica was performed by X-ray diffraction, thermogravimetry, mercury intrusion porosimetry and scanning electron microscopy. Obtained results indicate an optimum content of nano-silica of 0.62 wt%, considering compressive and flexural strengths. This performance improvement was directly related to two important microstructural aspects: the packing effect and pozzolanic reaction of nano-silica.

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Radlińska, Aleksandra, and Jason Weiss. "Toward the Development of a Performance-Related Specification for Concrete Shrinkage." Journal of Materials in Civil Engineering 24, no. 1 (January 2012): 64–71. http://dx.doi.org/10.1061/(asce)mt.1943-5533.0000364.

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