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AP assembled on ultrafine aluminum particle and its application to NEPE propellant
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作者 Huixin Wang Qiang Li +3 位作者 Hui Ren Liangjun Xie Tingting Liu Zhihong Chen 《Defence Technology(防务技术)》 SCIE EI CAS CSCD 2024年第6期20-29,共10页
Coating modification is an important way to enhance the reactivity of aluminum powder.In this paper,ammonium perchlorate and aluminum powder were assembled into energetic microunits by liquid deposition method.Spheric... Coating modification is an important way to enhance the reactivity of aluminum powder.In this paper,ammonium perchlorate and aluminum powder were assembled into energetic microunits by liquid deposition method.Spherical particles with AP as shell and ultrafine aluminum powder as the core(Al@AP)were gained.The micromorphology results show that the coated particles are about 5μm,and the coating layer is evenly distributed on the outer surface of aluminum powder,indicating a complete coating.The energetic microunits were implanted into the nitrate ester plasticizing adhesive system(NEPE)as solid phase fillers.The effect of filler on the rheological properties,safety,mechanical properties,thermal reaction and energy properties of the system was analyzed by comparing with the raw aluminum filler.The test results show that the rheological properties,mechanical properties and pressure index of NEPE containing system Al@AP meets the requirements of solid propellant charging.Compared with Al based propellant,the mechanical sensitivity and thermal sensitivity are decreased,the safety is better,and the explosion heat of the propellant is increased by 7.8%.The engine test shows that the specific impulse is increased by 1.2 s.Al@AP can improve the energy output and safety of NEPE propellant,and has potential application prospects in high-energy propellants. 展开更多
关键词 Aluminum powder COATING NEPE propellant Energy output Applied research
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Research on the solid particle erosion wear of pipe steel for hydraulic fracturing based on experiments and numerical simulations
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作者 Si-Qi Yang Jian-Chun Fan +7 位作者 Ming-Tao Liu De-Ning Li Jun-Liang Li Li-Hong Han Jian-Jun Wang Shang-Yu Yang Si-Wei Dai Lai-Bin Zhang 《Petroleum Science》 SCIE EI CAS CSCD 2024年第4期2779-2792,共14页
Erosion wear is a common failure mode in the oil and gas industry.In the hydraulic fracturing,the fracturing pipes are not only in high-pressure working environment,but also suffer from the impact of the high-speed so... Erosion wear is a common failure mode in the oil and gas industry.In the hydraulic fracturing,the fracturing pipes are not only in high-pressure working environment,but also suffer from the impact of the high-speed solid particles in the fracturing fluid.Beneath such complex conditions,the vulnerable components of the pipe system are prone to perforation or even burst accidents,which has become one of the most serious risks at the fracturing site.Unfortunately,it is not yet fully understood the erosion mechanism of pipe steel for hydraulic fracturing.Therefore,this article provides a detailed analysis of the erosion behavior of fracturing pipes under complex working conditions based on experiments and numerical simulations.Firstly,we conducted erosion experiments on AISI 4135 steel for fracturing pipes to investigate the erosion characteristics of the material.The effects of impact angle,flow velocity and applied stress on erosion wear were comprehensively considered.Then a particle impact dynamic model of erosion wear was developed based on the experimental parameters,and the evolution process of particle erosion under different impact angles,impact velocities and applied stress was analyzed.By combining the erosion characteristics,the micro-structure of the eroded area,and the micro-mechanics of erosion damage,the erosion mechanism of pipe steel under fracturing conditions was studied in detail for the first time.Under high-pressure operating conditions,it was demonstrated through experiments and numerical simulations that the size of the micro-defects in the eroded area increased as the applied stress increased,resulting in more severe erosion wear of fracturing pipes. 展开更多
关键词 Erosion wear Applied stress Particle impact dynamics Erosion mechanism
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Research funding and citations in papers of Nobel Laureates in Physics, Chemistry and Medicine, 2019-2020
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作者 Mario Coccia Saeed Roshani 《Journal of Data and Information Science》 CSCD 2024年第2期56-80,共25页
Purpose:The goal of this study is a comparative analysis of the relation between funding(a main driver for scientific research)and citations in papers of Nobel Laureates in physics,chemistry and medicine over 2019-202... Purpose:The goal of this study is a comparative analysis of the relation between funding(a main driver for scientific research)and citations in papers of Nobel Laureates in physics,chemistry and medicine over 2019-2020 and the same relation in these research fields as a whole.Design/methodology/approach:This study utilizes a power law model to explore the relationship between research funding and citations of related papers.The study here analyzes 3,539 recorded documents by Nobel Laureates in physics,chemistry and medicine and a broader dataset of 183,016 documents related to the fields of physics,medicine,and chemistry recorded in the Web of Science database.Findings:Results reveal that in chemistry and medicine,funded researches published in papers of Nobel Laureates have higher citations than unfunded studies published in articles;vice versa high citations of Nobel Laureates in physics are for unfunded studies published in papers.Instead,when overall data of publications and citations in physics,chemistry and medicine are analyzed,all papers based on funded researches show higher citations than unfunded ones.Originality/value:Results clarify the driving role of research funding for science diffusion that are systematized in general properties:a)articles concerning funded researches receive more citations than(un)funded studies published in papers of physics,chemistry and medicine sciences,generating a high Matthew effect(a higher growth of citations with the increase in the number of papers);b)research funding increases the citations of articles in fields oriented to applied research(e.g.,chemistry and medicine)more than fields oriented towards basic research(e.g.,physics).Practical implications:The results here explain some characteristics of scientific development and diffusion,highlighting the critical role of research funding in fostering citations and the expansion of scientific knowledge.This finding can support decision-making of policymakers and R&D managers to improve the effectiveness in allocating financial resources in science policies to generate a higher positive scientific and societal impact. 展开更多
关键词 Research funding CITATIONS Science diffusion Scientific change Science of Science Power-law distribution Basic research Applied research Matthew effect Nobel Laureates Nobel Prizes
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Science and reflections: With some thoughts to young applied scientists and engineers
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作者 Robert L Nowack 《Earthquake Science》 2024年第5期459-493,共35页
I provide some science and reflections from my experiences working in geophysics,along with connections to computational and data sciences,including recent developments in machine learning.I highlight several individu... I provide some science and reflections from my experiences working in geophysics,along with connections to computational and data sciences,including recent developments in machine learning.I highlight several individuals and groups who have influenced me,both through direct collaborations as well as from ideas and insights that I have learned from.While my reflections are rooted in geophysics,they should also be relevant to other computational scientific and engineering fields.I also provide some thoughts for young,applied scientists and engineers. 展开更多
关键词 GEOPHYSICS computational and data science applied science and engineering
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Exploring Nominalization in English Abstracts of Applied Linguistics Research Articles:A Comparative Study Between Chinese and International Journals
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作者 Gong Yingrui Zhao Yibu 《Contemporary Social Sciences》 2024年第4期122-142,共21页
Researchers around the world strive to communicate new knowledge,primarily via publication,with the abstract being crucial in conveying core insights.Previous research has generally analyzed the discourse features of ... Researchers around the world strive to communicate new knowledge,primarily via publication,with the abstract being crucial in conveying core insights.Previous research has generally analyzed the discourse features of abstracts from a macro perspective and often employed either outdated texts,such as those over a decade old,or papers written by authors with lower English academic writing proficiency as research material.In this study,we analyzed forty abstracts from leading journals in applied linguistics,evenly split between Chinese and international journals.It revealed that the use of nominalization in abstracts by Chinese and international scholars showed similarities due to the universal academic requirement for conciseness.However,due to cultural and educational differences,each group differed in their respective language choices and nominalization usage.By analyzing the application of nominalization in different cultural contexts,the results of our study offered practical suggestions for crafting abstracts that effectively convey information,thereby,contributing to the broader academic community. 展开更多
关键词 NOMINALIZATION ABSTRACTS comparative study applied linguistics
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Promoting High-Quality Development of China’s Foreign Assistance and International Development Cooperation by Studying and Implementing Xi Jinping Thought on Socialism with Chinese Characteristics for a New Era
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作者 Luo Zhaohui 《Contemporary World》 2024年第5期2-7,共6页
Xi Jinping Thought on Socialism with Chinese Characteristics for a New Era is Marxism of contemporary China and Marxism of the 21st century,reflecting the essence of both the Chinese culture and the Chinese ethos.It i... Xi Jinping Thought on Socialism with Chinese Characteristics for a New Era is Marxism of contemporary China and Marxism of the 21st century,reflecting the essence of both the Chinese culture and the Chinese ethos.It is the latest breakthrough in applying Marxism in the Chinese context.As the main architect of the thought,with an acute observation of the evolving international landscape and the underlying trends of the times and from a perspective of seeking development for the world and the whole humanity,with the future of mankind in mind and a great sense of responsibility as the leader of a major country and major party,General Secretary Xi Jinping has put forth a series of transformative new concepts,new ideas and new initiatives,leading to major breakthroughs in both theory and practice guiding China’s foreign assistance and international development cooperation. 展开更多
关键词 BREAKTHROUGH MARXISM applying
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Keeping planes safe:the role of IECQ in the aerospace industry
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《China Standardization》 2024年第6期46-46,共1页
The avionics industry relies on the quality,reliability,and safety of electronic components.This is critically important given avionics failures can quickly become disastrous.Therefore,assurance of meeting stringent c... The avionics industry relies on the quality,reliability,and safety of electronic components.This is critically important given avionics failures can quickly become disastrous.Therefore,assurance of meeting stringent criteria for safety and quality becomes paramount.IECQ,the IEC Quality Assessment System,provides the necessary certification of compliance for electronic components that apply to critical industry sectors,including aerospace. 展开更多
关键词 INDUSTRY apply SAFETY
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The Role of Impulsivity and Addiction in Gambling Behaviors: How Applied Neuroscience Research Can Help in the Monitoring and Management of Mental Health Issues
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作者 Yingzhen Jia Kimberly Rose Clark 《Open Journal of Medical Psychology》 2024年第1期11-24,共14页
One in five Americans experience symptoms associated with at least one mental health disorder every year. These include behavioral addictions, which have long been overlooked despite their similar neural bases with su... One in five Americans experience symptoms associated with at least one mental health disorder every year. These include behavioral addictions, which have long been overlooked despite their similar neural bases with substance addictions. Gambling addiction, a type of behavioral addiction, deserves particular attention given the significant negative effects, this addiction has on financial and interpersonal health. The purpose of this paper is to review the available literature concerning the behavioral and neural processes involved in gambling addiction, including: the anticipation of reward, the role of dopamine, and the neural substrates of the decision-making processes involved in gambling addiction. Market research has also identified solutions that integrate applied neuroscience and self-tracking systems to monitor and manage mental health issues associated with gambling addiction. The authors then propose a gambling treatment-focused mobile app solution that addresses outstanding issues with a special design aimed at reversing plasticity in order to relieve the effects of gambling addiction. . 展开更多
关键词 Applied Neuroscience GAMBLING ADDICTION Mental Health Management
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Construction and Application Exploration of Smart Agriculture Based on Big Data Technology
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作者 Zhongling Li Hairui Wang 《Journal of Electronic Research and Application》 2024年第3期72-77,共6页
Big data finds extensive application and many fields.It brings new opportunities for the development of agriculture.Using big data technology to promote the development of smart agriculture can greatly improve the eff... Big data finds extensive application and many fields.It brings new opportunities for the development of agriculture.Using big data technology to promote the development of smart agriculture can greatly improve the effect of agricultural planting,reduce the input of manpower and material resources,and lay a solid foundation for the realization of agricultural modernization.In this regard,this paper briefly analyzes the construction and application of smart agriculture based on big data technology,hoping to provide some valuable insights for readers. 展开更多
关键词 Big data technology Smart agriculture CONSTRUCTION Apply
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Recurrent gene flow between Neanderthals and modern humans over the past 200,000 years
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《四川生理科学杂志》 2024年第7期1621-1621,共1页
Although it is well known that the ancestors of modern humans and Neanderthals admixed,the effects of gene flow on the Neanderthal genome are not well understood.We develop methods to estimate the amount of human-intr... Although it is well known that the ancestors of modern humans and Neanderthals admixed,the effects of gene flow on the Neanderthal genome are not well understood.We develop methods to estimate the amount of human-introgressed sequences in Neanderthals and apply it to whole-genome sequence data from 2000 modern humans and three Neanderthals. 展开更多
关键词 FLOW MODERN apply
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A Study of English Grammar Teaching and Cultural Introduction from the Perspective of Applied Linguistics
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作者 Yanjing Zhou 《Journal of Contemporary Educational Research》 2024年第4期157-162,共6页
Grammar teaching is the main content of university English teaching,and the quality of teaching will affect the effect of university talent cultivation.Based on the perspective of applied linguistics,it is crucial to ... Grammar teaching is the main content of university English teaching,and the quality of teaching will affect the effect of university talent cultivation.Based on the perspective of applied linguistics,it is crucial to use cultural introduction teaching for English grammar teaching.This paper will combine the basic concepts of applied linguistics and cultural introduction teaching,analyze the role of using the cultural introduction teaching method to innovate grammar teaching mode under the perspective of applied linguistics,and put forward a scientific English grammar teaching strategy with the goal of improving teaching quality. 展开更多
关键词 Applied linguistics English grammar teaching Cultural introduction
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A Study on the Utilization of Applied Linguistics in Contemporary English Teaching
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作者 Han Li 《Journal of Contemporary Educational Research》 2024年第4期126-131,共6页
In the context of globalization,the importance of teaching English as a common language in the world becomes increasingly apparent.Applied Linguistics belongs to one of the sub-disciplines of linguistics,which plays a... In the context of globalization,the importance of teaching English as a common language in the world becomes increasingly apparent.Applied Linguistics belongs to one of the sub-disciplines of linguistics,which plays an important role in contemporary English teaching.The knowledge of applied linguistics can help students learn the grammar,semantics,vocabulary,writing,and other contents in English,deepen their knowledge and understanding of English,and enhance the effectiveness of English teaching.This paper mainly describes the important role played by English linguistics in English teaching and focuses on its utilization strategies in the hope of providing references on this topic. 展开更多
关键词 Applied linguistics English teaching Utilization strategy
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A Study on the Application of Evidence-Based Nursing in The Care of Patients with Severe Acute Pancreatitis
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作者 Zhe Chen Rui Cao 《Journal of Clinical and Nursing Research》 2024年第4期128-131,共4页
Objective: To explore the application research of evidence-based nursing in the care of patients with severe acute pancreatitis. Methods: This study focuses on evidence-based nursing care of severe acute pancreatitis.... Objective: To explore the application research of evidence-based nursing in the care of patients with severe acute pancreatitis. Methods: This study focuses on evidence-based nursing care of severe acute pancreatitis. Patients with severe acute pancreatitis who received treatment in our hospital were selected, from which 80 cases were chosen for detailed analysis. The patients were randomly grouped into a control group (conventional nursing care) and a study group (evidence-based nursing care), with 40 patients each. Relevant research data were recorded during the nursing process, analyzed, and used as research indicators. Results: The hospitalization time and morbidity and mortality rate of the research group were shorter than those of the control group, and the recovery rate was higher than that of the control group (P < 0.05). Patient satisfaction with nursing care in the observation group was higher than in the control group (P < 0.05). Conclusion: For patients with severe acute pancreatitis, the use of evidence-based nursing methods effectively reduced the patient’s mortality rate, improved its curative effect, and also shortened the patient’s hospitalization time. 展开更多
关键词 Severe acute pancreatitis Evidence-based nursing Applied research
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Construction and Practice of Education and Teaching Quality Assurance Systems in Applied Colleges and Universities under the Background of Digital Intelligence
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作者 Hui Cheng 《Journal of Contemporary Educational Research》 2024年第9期265-270,共6页
This paper discusses the optimization strategy of education and teaching quality assurance systems in applied colleges and universities under the background of digital intelligence.It first summarizes the relevant the... This paper discusses the optimization strategy of education and teaching quality assurance systems in applied colleges and universities under the background of digital intelligence.It first summarizes the relevant theories of digital intelligence transformation and analyzes the impact of digital intelligence transformation on higher education.Secondly,this paper puts forward the principles of constructing the quality assurance system of applied colleges,including strengthening the quality assurance consciousness,improving teachers’digital literacy,and implementing digital intelligence governance.From the practical perspective,this paper expounds on strategies such as optimizing educational teaching resource allocation,constructing a diversified evaluation system of teaching quality,strengthening the construction and training of teaching staff,and innovating teaching management methods.Specific optimization measures are put forward,such as improving policies,regulations,and system guarantees,strengthening cooperation between schools and enterprises,integrating industry,school,and research,building an educational information platform,and improving the monitoring and feedback mechanism of educational quality. 展开更多
关键词 Digital intelligence transformation Applied colleges and universities Education and teaching quality Assurance system Optimization strategy
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Research on the Reform of School-Enterprise Cooperation Teaching and Education Mode for Computer Majors
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作者 Zichen Xu 《Journal of Contemporary Educational Research》 2024年第2期144-150,共7页
This paper discusses the innovative methods of school-enterprise cooperation education mode in computer applied talent training.An innovative training model based on school-enterprise cooperation is proposed to promot... This paper discusses the innovative methods of school-enterprise cooperation education mode in computer applied talent training.An innovative training model based on school-enterprise cooperation is proposed to promote the cultivation of students’practical and innovative skills,so as to better adapt to the needs of society.By analyzing the key links and influencing factors of the training mode,this paper puts forward some concrete suggestions and measures to provide guidelines for universities and enterprises in personnel training. 展开更多
关键词 School-enterprise cooperation Computer applied talents Innovative training mode
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Values and Paths of Ideological and Political Education in College English Teaching in Applied Universities
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作者 Daoping Xu 《Journal of Contemporary Educational Research》 2024年第4期144-149,共6页
As the state promotes teaching reform with the goal of ideological and political education,the teaching of various disciplines in colleges and universities is facing new challenges and novel research topics.In applied... As the state promotes teaching reform with the goal of ideological and political education,the teaching of various disciplines in colleges and universities is facing new challenges and novel research topics.In applied colleges and universities,as a compulsory course of general education,the ideological and political education elements have not been deeply explored,and the function of ideological and political education that should be undertaken by English teaching has not been fully realized.This paper analyzes the value of ideological and political education in college English in applied colleges and universities and discusses the effective path of ideological and political education in college English in applied colleges and universities from the four levels of teachers,teaching materials,teaching methods,and curriculum. 展开更多
关键词 Applied colleges and universities College English Ideological and political courses Ideological and political education
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EXPEDIENCY OF APPLYING ACUPUNCTURE TREATMENT (REFLEXIVE THERAPEUTICS) TO LIVER AND BILIARY TRACT DISEASES
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作者 D.Boris V.Ermak 《World Journal of Acupuncture-Moxibustion》 1999年第1期56-56,共1页
关键词 CV BL EXPEDIENCY OF applying ACUPUNCTURE TREATMENT REFLEXIVE THERAPEUTICS
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Developing and applying of SAN-E reagent red blood cell preservatives olution
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《中国输血杂志》 CAS CSCD 2001年第S1期373-,共1页
关键词 SAN cell Developing and applying of SAN-E reagent red blood cell preservatives olution
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Applying the cleanedred blood cell to avoidance of the immune response of transfusion
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《中国输血杂志》 CAS CSCD 2001年第S1期336-,共1页
关键词 CELL applying the cleanedred blood cell to avoidance of the immune response of transfusion
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Applying Analytical Hierarchy Process to a WiMAX Performance Evaluation Model
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作者 Ronald Shiu Keung Kwan Kim Fung Tsang 《ZTE Communications》 2010年第3期50-55,共6页
Evaluating performance of individual features of WiMAX technology is a topic of widespread discussion. Currently, there is no quantitative way of measuring WiMAX technology so that wireless operators can meet their de... Evaluating performance of individual features of WiMAX technology is a topic of widespread discussion. Currently, there is no quantitative way of measuring WiMAX technology so that wireless operators can meet their design objectives. This paper outlines a set of design criteria for WiMAX and provides a decision-making aid that ranks the importance of criteria using Analytic Hierarchy Process (AHP). This ranking should sufficiently reflect market expectations of the relative importance of various design criteria. A model integrating AHP priorities with enhanced Data Envelopment Analysis (DEA) is the basis for formulating a technological value in simple, comparable format. A case study is provided to show how this technological value is used to evaluate a three year network deployment plan. In the future, this model could be extended to WiMAX equipment suppliers for the purpose of validating performance targets of individual criteria, and enhancing supplier roadmaps for future network development. 展开更多
关键词 WIMAX applying Analytical Hierarchy Process to a WiMAX Performance Evaluation Model
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