期刊文献+
共找到320篇文章
< 1 2 16 >
每页显示 20 50 100
Selected elements of rock burst state assessment in case studies from the Silesian hard coal mines 被引量:4
1
作者 KABIESZ Józef MAKóWKA Janusz 《Mining Science and Technology》 EI CAS 2009年第5期660-667,共8页
Exploitation of coal seams in the Upper Silesian Coal Basin is conducted in complex and difficult conditions. These difficulties are connected with the occurrence of many natural mining hazards and limitations resulti... Exploitation of coal seams in the Upper Silesian Coal Basin is conducted in complex and difficult conditions. These difficulties are connected with the occurrence of many natural mining hazards and limitations resulting from the existing in this area surface infrastructure. One of the most important problems of Polish mining is the rock burst hazard and reliable evaluation of its condition. During long-years’ mining practice in Poland a comprehensive system of evaluation and control of this hazard was developed. In the paper the main aspects of rock burst hazard state evaluation will be presented, comprising: 1) rock mass inclination for rock bursts, i.e., rock strength properties investigation, comprehensive parametric evaluation of rock mass inclination for rock bursts, prognosis of seismic events induced by mining operations, methods of computer-aided modelling of stress and rock mass deformation parameters distribution, strategic rock mass classification under rock burst degrees; 2) immediate seismic and rock burst hazard state evaluation, i.e., low diameter test drilling method, seismologic and seismoacoustic method, comprehensive method of rock burst hazard state evaluation, non-standard methods of evaluation; 3) legal aspects of rock burst hazard state evaluation. Selected elements of the hazard state evaluation system are illustrated with specific practical examples of their application. 展开更多
关键词 coal mine rock bursts control case studies
在线阅读 下载PDF
The Spatial-Temporal Distribution Patterns of Dyke Swarms in Central Asia and their Tectonic Significance: Case Studies in Eastern Tianshan and Western Junggar 被引量:1
2
作者 FENG Qianwen LI Jinyi LIU Jianfeng 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2016年第S1期152-153,共2页
Dykes are a special kind of intrusive rocks which were formed by deep magma intruded into the existing brittle fractures in the crust.Dykes swarms in different tectonic environments are very significant to re-construc... Dykes are a special kind of intrusive rocks which were formed by deep magma intruded into the existing brittle fractures in the crust.Dykes swarms in different tectonic environments are very significant to re-construct the 展开更多
关键词 deep Asia case studies in Eastern Tianshan and Western Junggar The Spatial-Temporal Distribution Patterns of Dyke Swarms in Central Asia and their Tectonic Significance
在线阅读 下载PDF
Efficacy of Photobiomodulation for Attention Deficit Hyperactivity Disorder (ADHD): Case Studies 被引量:1
3
作者 William Stephan Louis J. Banas +1 位作者 William Brierley Michael R. Hamblin 《World Journal of Neuroscience》 CAS 2022年第3期136-143,共8页
Extensive research has now been conducted and published for the treatment of dementia or Alzheimer’s disease, traumatic brain injury (TBI) and other brain disorders using photobiomodulation (PBM), also known as low-l... Extensive research has now been conducted and published for the treatment of dementia or Alzheimer’s disease, traumatic brain injury (TBI) and other brain disorders using photobiomodulation (PBM), also known as low-level laser therapy (LLLT). However, minimal information is available regarding the use of LLLT for the treatment of Attention Deficit Hyperactivity Disorder (ADHD). We have been using LLLT in our practice for over 15 years addressing chronic pain and injury issues. However, our work with brain injuries is more recent, and we have published three case studies, one describing a serious traumatic brain injury and two describing our success with dementia/Alzheimer’s disease and PTSD. Currently, there is very little published evidence regarding efficacious therapy for ADHD. The case studies presented here, suggest that LLLT can provide alleviation of these symptoms, with some improvement reported after just a single treatment, without any need for pharmaceutical intervention. 展开更多
关键词 PHOTOBIOMODULATION MITOCHONDRIA Attention Deficit Hyperactivity Disorder Low Level Laser Therapy (LLLT) case studies
暂未订购
Driving Forces of Private Equity Investment in China: Case Studies of Private Entrepreneurship
4
作者 Pang Yanmin Geng Jing Zhang Guibin 《Journal of Modern Accounting and Auditing》 2012年第6期862-879,共18页
In search of private equity investment opportunities in China, one would be astonished by the rise of raw private entrepreneurship in this largest emerging market economy in the world. The country is experiencing a tr... In search of private equity investment opportunities in China, one would be astonished by the rise of raw private entrepreneurship in this largest emerging market economy in the world. The country is experiencing a transition from a planned, socialist economy to a market or mixed economy. The emergence of a significant private sector is one of the most important developments of the market-oriented reforms in China over the last quarter of a century. It is true that the transformation of public ownership into private ownership indeed gave a rise to the new private enterprises. Nevertheless, there is also an origination process of genuine private enterprises parallel to this privatization approach. In this paper, the concept of raw entrepreneurship is introduced to distinguish new, green-field private firms from the rest of the private sector that has emerged from older firms that have been converted from SOEs (state-owned enterprises) or COEs (collectively-owned enterprises). It is also a concept that stresses the highly innovative manner in which private firms have emerged in China. This paper will explore deeply the concept of raw entrepreneurship through three case studies as well as theoretical analysis based on traditional wisdom. 展开更多
关键词 private equity raw entrepreneurship case studies
在线阅读 下载PDF
Delivering Tram-Based Boulevards: Learning from Opportunities and Challenges in Three European City Case Studies
5
作者 Jan Scheurer Marie Verschuer +1 位作者 Peter Newman Cheryl Desha 《Journal of Transportation Technologies》 2023年第2期262-281,共20页
Increasing calls for zero-carbon cities invite transformative solutions for people and places within our cities around the world. Key to the transformation is cities and regions shifting in mobility away from fossil-f... Increasing calls for zero-carbon cities invite transformative solutions for people and places within our cities around the world. Key to the transformation is cities and regions shifting in mobility away from fossil-fuel based car-oriented solutions. The paper investigates a range of case studies where “tram-based boulevards” have been planned or implemented to provide such opportunities. The case studies share a common broader policy objective: to transform the car-oriented or car-saturated areas to an intensified urban template based on a critical presence of dedicated mid-tier transit infrastructure and active transport. “Trams”, or mid-tier, mid-capacity transit when combined with Transit oriented development (TOD) along whole corridors can provide transformative pathways towards zero-carbon outcomes as well as multiple, strong urban benefits. However, many successful or instructive examples of this practice from non-English speaking countries, particularly in Europe, are underdocumented in the international literature. The paper addresses this gap by investigating opportunities and challenges evident in a range of European case studies. These are explored for insight towards policy learning particularly in New World cities seeking to transform into a zero-carbon and more transit-oriented template: How can decision-makers avoid repeating the identified pitfalls, and instead focus on emulating the successful approaches and outcomes? We conclude the need for recognition of the inherent synergies between transport and land use settings in any endeavour, and their translation into policy priorities in both fields of planning. We also conclude the importance of decision makers proactively identifying and critically appraising specific opportunities for change, concerning funding, technology, public opinion, stakeholder alliances or market dynamics, and capitalising on them at suitable moments in time. 展开更多
关键词 Transit Oriented Development (TOD) Transit Activated Corridors (TAC) Zero-Carbon Cities Transit Diversity Urban Corridor Intensification Trams Boulevards European case studies
在线阅读 下载PDF
Research on the Applications of Case Studies and Role Playing Methods on the Enterprise Strategic Management Course Teaching
6
作者 Jing Xue Aining Li 《International Journal of Technology Management》 2015年第11期49-51,共3页
In this paper, we conduct research on the applications of case studies and role playing methods on the enterprise strategic management course teaching. Training is an important part of the enterprise human resources m... In this paper, we conduct research on the applications of case studies and role playing methods on the enterprise strategic management course teaching. Training is an important part of the enterprise human resources management. For enterprises is a kind of novel important human capital investment, as well as other capital investments, both benefits. Also be risky, because of the risks and benefits is coexistence, indivisible. To deal with the mentioned challenge, we combine the novel and state-of-the-art training methodology to maximize the effectiveness of the training process. In the article, we cast our new opinion together with the prospect for the future. 展开更多
关键词 Enterprise Strategic Management case studies Role Playing Course and Education.
在线阅读 下载PDF
Site-specific Vulnerability Assessment for Debris Flows: Two Case Studies 被引量:3
7
作者 Liu Xilin 《Journal of Mountain Science》 SCIE CSCD 2006年第1期20-27,共8页
Here the vulnerability is defined as the potential total maximum losses due to a debris flow damaging event for a specific debris flow fan. The vulnerability is classified into property vulnerability and population vu... Here the vulnerability is defined as the potential total maximum losses due to a debris flow damaging event for a specific debris flow fan. The vulnerability is classified into property vulnerability and population vulnerability. Assessment indexes include the assets of buildings, traffic facilities, lifeline works, personal properties, and land resources for property vulnerability; age, education, and wealth of the inhabitants, natural population growth rate, and population density for population vulnerability. The vulnerability is expressed as the sum of the transformed values of the losses of property and population. Two study cases with post-fact damages by historic debris flow events in Sichuan of SW China are presented. 展开更多
关键词 Vulnerability to debris flow vulnerability factors case study China
在线阅读 下载PDF
Case studies in psychotherapy training using Austria as an example
8
作者 Ela Neidhart Henriette Löffler-Stastka 《World Journal of Clinical Cases》 SCIE 2020年第13期2787-2801,共15页
BACKGROUND Case studies(CS)are relevant for the development of theoretical and practical competencies in psychotherapy.Despite rapid progress in the development of methods and principles for establishing CS in the las... BACKGROUND Case studies(CS)are relevant for the development of theoretical and practical competencies in psychotherapy.Despite rapid progress in the development of methods and principles for establishing CS in the last three decades,research into the aims of CS,especially in training,or how CS are to be conducted is rare.AIM To elucidate the form and methodology of CS,the objectives of CS used in training institutions(TI),and if/how TIs handle therapist allegiance.Also,this preliminary investigation will suggest avenues for further research and attempt to establish certain guidelines.METHODS In order to counteract researcher bias and enlarge the question-pool,a focus group was established.The recorded and transcribed text was analyzed with Mayring’s method of qualitative content analysis,and the generated categories were formulated as questions.The resulting questionnaire with both qualitative and quantitative queries was sent out(after pre-testing)to all 39 Austrian TIs that provide professional psychotherapy training.The answers and text passages received were then also categorized with qualitative content analysis.Data analysis was discussed by a peer group consisting of three psychotherapists trained in differing schools of psychotherapeutic methods.RESULTS 94%of Austrian institutes use CS as part of their psychotherapeutic training.Understanding of the term“case study”is inconsistent and has a wide variety of interpretations.CS serve mainly:(1)For observation of training/progress in therapeutic practice and knowledge/acquisition of the theory specific to each psychotherapeutic school;(2)To improve(self-)reflection capabilities;and(3)To expand theoretical knowledge.Most of the CS written are not accessible for students nor for the research community.More than two thirds of the CS take only the position of the author into account(the client’s position is not described).15.5%of the TIs do not consider researcher or therapist allegiance at all.CONCLUSION A more precise formulation of the term case study is needed in psychotherapeutic training.The training therapists play a key function,as they exemplify and teach how to deal with distorting factors.General guidelines as to how to conduct CS in training institutions would provide more direction to students,increase scientific rigor,and enhance synergistic effects. 展开更多
关键词 case study Psychotherapy training case study research Therapist allegiance Researcher bias
暂未订购
Roles of Case Studies and Case Reports in US East Asian Medicine:A Narrative-Medicine Perspective
9
作者 Sarah E.Rivkin 《Chinese Medicine and Culture》 2023年第2期194-204,共11页
Recorded stories of the clinical encounter stretch back to ancient times.Throughout their history,these narratives have been called by different names,reflecting changes in format,function,and audience.This paper exam... Recorded stories of the clinical encounter stretch back to ancient times.Throughout their history,these narratives have been called by different names,reflecting changes in format,function,and audience.This paper examines and explains the differences in two related forms of clinical writing as practiced by East Asian Medicine clinicians in the United States today-the case study and the case report.Each has its strengths and weaknesses;each is suited to different roles.The case study is ideal for education and the practice of narrative medicine,whereas the case report has played a vital role in propelling East Asian Medicine into the arena of modern scientific research. 展开更多
关键词 case record case report case study Herbal medicine Narrative medicine
暂未订购
A Research Conception on Indigenous Chinese Leadership:Based on Comparative Case Studies on Political Elites in Ancient China
10
作者 LI Yongrui HUANG Shiqing 《Chinese Business Review》 2024年第3期95-113,共19页
Due to the complexity of leadership and its variability across situations,it is suggested that research on leadership should focus on attempts to understand leadership in specific situations or roles,and develop local... Due to the complexity of leadership and its variability across situations,it is suggested that research on leadership should focus on attempts to understand leadership in specific situations or roles,and develop local knowledge about leadership in each situation or role.This paper validates the possibility and importance of building indigenous leadership theories from historical perspective.We demonstrated how to carry out research on indigenous Chinese leadership from a historical perspective by comparative case studies using historical data.Based on the principles of typicalness,representativeness,and comparativeness,we selected six counterparts of political elites in ancient China as comparative cases,which includes Guan Zhong&Shang Yang(organizational reformer),Liu Bang&Xiang Yu(entrepreneur),Li Shimin&Qin Shihuang(intergenerational transition successor),Zhuge Liang&Zeng Guofan(professional manager),Lu Su&Zhang Juzheng(mess-to-order maker),and Zuo Zongtang&Wang Anshi(national dream driver).The paper aims to develop indigenous leadership theory specific to Chinese mental states and culture. 展开更多
关键词 historical perspective indigenous leadership political elites in ancient China comparative case study qualitative study
在线阅读 下载PDF
Defining the growth paths of strategic scientists based on case studies
11
作者 Wuyunqiqige Jiangyang Yuan 《Cultures of Science》 2024年第3期198-209,共12页
In this paper, 18 scientists from China and other countries were selected for consideration as case studies of‘strategic scientists'. They were chosen according to their involvement in science and technology poli... In this paper, 18 scientists from China and other countries were selected for consideration as case studies of‘strategic scientists'. They were chosen according to their involvement in science and technology policy decision-making, development of key and advantageous fields, creation of new disciplines, construction of academic traditions, and intersections between science and industry. On this basis, we found that the growth paths of strategic scientists can be divided into three phases: as talented young scientists, as gatekeepers in related disciplines or research fields, and as consultants for national science and technology decision-making. Based on this trichotomy, we explored the characteristics of strategic scientists and the conditions required for their growth in each phase. Finally, policy suggestions are proposed for the cultivation and use of strategic scientists. 展开更多
关键词 Strategic scientists case study growth path GATEKEEPER cultivation and use of strategic scientists
在线阅读 下载PDF
NUMERICAL SIMULATION OF MICROPHYSICAL PROCESSES IN CUMULONIMBUS——PART Ⅱ CASE STUDIES OF SHOWER,HAILSTORM AND TORRENTIAL RAIN 被引量:5
12
作者 胡志晋 何观芳 《Acta meteorologica Sinica》 SCIE 1989年第2期185-199,共15页
A shower cloud observed in Jiangxi,a hailstorm observed in Hebei and“75.8”torrential rain in Henan are simulated with our microphysical model in a one-dimensional framework.The model,using the radio- sonde data as i... A shower cloud observed in Jiangxi,a hailstorm observed in Hebei and“75.8”torrential rain in Henan are simulated with our microphysical model in a one-dimensional framework.The model,using the radio- sonde data as input,gets its output which shows agreement in many aspects as compared with observations in each case.The glaciation of small cumulus cloud,low precipitation efficiency of hailstorm and the per- sistence of torrential rain are demonstrated.It is also shown that the Bergeron process has little influence, but the warm-rain process plays an important role in the formation of precipitation in cumulonimbus with a warm cloud base. 展开更多
关键词 PART case studies OF SHOWER HAILSTORM AND TORRENTIAL RAIN NUMERICAL SIMULATION OF MICROPHYSICAL PROCESSES IN CUMULONIMBUS
在线阅读 下载PDF
The Mechanism of Realizing the Value of Ecological Products and Case Studies
13
作者 ZHANG Enxiang LEI Shuo +2 位作者 ZHENG Yuping LIU Lixiang HAN Yongwei 《Journal of Resources and Ecology》 CSCD 2024年第6期1406-1415,共10页
The article uses a case study approach to investigate the mechanisms of ecological product value realization,and influencing factors.Specifically,we use a case analysis framework based on the“economy-societynatural e... The article uses a case study approach to investigate the mechanisms of ecological product value realization,and influencing factors.Specifically,we use a case analysis framework based on the“economy-societynatural ecology”perspective to analyze and compare the three batches of“Typical Cases of Ecological ProductValue Realization”released by the Ministry of Natural Resources.We find:First,different modes of ecologicalproduct value realization exist.Different resource endowments,and institutional and environmental factors affectthe selection of the value realization modes.Second,certain obstacles also exist for realizing ecological productvalue,which are mainly reflected in the fact that the articulation of the individual,society,and government is not yetsufficiently close.Third,to promote the development of regional eco-products’mode and value conversion,the implementing party needs to guide the synergy between individual concepts,social participation,and governmentaltop-level design;rationally arrange the allocation of resource elements;mitigate elemental constraints;and proposeeffective technical means and optimization strategies according to the actual situation. 展开更多
关键词 eco-products realization mechanisms value transformation model selection case studies
原文传递
The Ownership of Heritage Area with the Conservation Management Apporach——Taking Tianzifang and The Rock as Case Studies
14
作者 王婥约 《环球市场信息导报》 2016年第34期101-104,共4页
关键词 Taking Tianzifang and The Rock as case studies The Ownership of Heritage Area with the Conservation Management Apporach
原文传递
Innovations in maternal and child health:case studies from Uganda 被引量:2
15
作者 Phyllis Awor Maxencia Nabiryo Lenore Manderson 《Infectious Diseases of Poverty》 SCIE 2020年第2期76-83,共8页
Background:Nearly 300 children and 20 mothers die from preventable causes daily,in Uganda.Communities often identify and introduce pragmatic and lasting solutions to such challenging health problems.However,little is ... Background:Nearly 300 children and 20 mothers die from preventable causes daily,in Uganda.Communities often identify and introduce pragmatic and lasting solutions to such challenging health problems.However,little is known of these solutions beyond their immediate surroundings.If local and pragmatic innovations were scaled-up,they could contribute to better health outcomes for larger populations.In 2017 an open call was made for local examples of community-based solutions that contribute to improving maternal and child health in Uganda.In this article,we describe three top innovative community-based solutions and their contributions to maternal health.Main text:In this study,all innovations were implemented by non-government entities.Two case studies highlight the importance of bringing reproductive health and maternal delivery services closer to populations,through providing accessible shelters and maternity waiting homes in isolated areas.The third case study focuses on bringing obstetric imaging services to lower level rural health facilities,which usually do not provide this service,through task-shifting certain sonography services to midwives.Various health system and policy relevant lessons are highlighted.Conclusions:The described case studies show how delays in access to health care by pregnant women in rural communities can be systematically removed,to improve pregnancy and delivery outcomes.Emphasis should be put on identification,capacity building and research to support the scale up of these community-based health solutions. 展开更多
关键词 Community-based solutions Maternal and child health Social innovations Social innovations in health Innovations in maternal and child health case study research Uganda
原文传递
A decision model for decentralized autonomous organization platform selection: Three industry case studies 被引量:1
16
作者 E.Baninemeh S.Farshidi S.Jansen 《Blockchain(Research and Applications)》 EI 2023年第2期82-100,共19页
Context:Decentralized autonomous organizations are a new form of smart contract-based governance.Decentralized autonomous organization platforms,which support the creation of such organizations,are becoming increasing... Context:Decentralized autonomous organizations are a new form of smart contract-based governance.Decentralized autonomous organization platforms,which support the creation of such organizations,are becoming increasingly popular,such as Aragon and Colony.Selecting the best fitting platform is challenging for organizations,as a significant number of decision criteria,such as popularity,developer availability,governance issues and consistent documentation of such platforms,should be considered.Additionally,decision-makers at the organizations are not experts in every domain,so they must continuously acquire volatile knowledge regarding such platforms.Objective:Supporting decision-makers in selecting the right decentralized autonomous organization platforms by designing an effective decision model is the main objective of this study.We aim to provide more insight into their selection process and reduce time and effort significantly by designing a decision model.Method:This study presents a decision model for the decentralized autonomous organization platform selection problem.The decision model captures knowledge regarding such platforms and concepts systematically.This model is based on an existing theoretical framework that assists software engineers with a set of multi-criteria decision-making problems in software production.Results:We conducted three industry case studies in the context of three decentralized autonomous organizations to evaluate the effectiveness and efficiency of the decision model in assisting decision-makers.The case study participants declared that the decision model provides significantly more insight into their selection process and reduces time and effort.Conclusion:We observe in the empirical evidence from the case studies that decision-makers can make more rational,efficient,and effective decisions with the decision model.Furthermore,the reusable form of the captured knowledge regarding decentralized autonomous organization platforms can be employed by other researchers in their future investigations. 展开更多
关键词 Decentralized autonomous organization Decision model Multi-criteria decision making Decision support system Decentralized autonomous organization PLATFORM case study research
原文传递
Regolith Geochemical Studies in Kimberlitic Terrain: A Case Study from Lattavaram Kimberlite Cluster, Eastern Dharwar Craton, Southern India
17
作者 P.Ramesh CHANDRA PHANI M.SRINIVAS 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2016年第S1期191-,共1页
Utility of geochemistry in mineral exploration is known since more than half-a-century.In reconnaissance diamond exploration,regolith geochemistry is a well known tool worldwide and helps in distinguishing bedrock
关键词 Regolith Geochemical studies in Kimberlitic Terrain rock Southern India A case Study from Lattavaram Kimberlite Cluster
在线阅读 下载PDF
ELECTRON MICROSCOPY STUDIES OF LENS FROM TWO CASES OF OCULAR SIDEROSIS
18
作者 Xianggen Wen Jun Li Eye Hospital, Zhongshan Ophthalmic Center Sun Yat-sen University of Medical Sciences Guangzhou, China Fuchou Cai Yifang Wu Department of Electron Micrescopy Sun Yat-sen University of Medical Sciences Guangzhou, China 《眼科学报》 1991年第1期47-48,20,共3页
Cases report Case 1: A 50-year-old man was injuried by iron filings on his left eye. He was admitted to our hospital on Feb. 3, 1987. On examination, his visual acuity was 20/15 OD and 20/500 OS. Left eye: The cornea ... Cases report Case 1: A 50-year-old man was injuried by iron filings on his left eye. He was admitted to our hospital on Feb. 3, 1987. On examination, his visual acuity was 20/15 OD and 20/500 OS. Left eye: The cornea was clear, the anterior chamber depth was 3 CT, tyndall(-). Iris pattern is clear, pupil was 3.5×3.5mm. Dilated pupil examination: There were scattered brown-yellow ironrust under anterior capsule and the lens cortex had become totally opaque. Nuclear, posterior capsule and fundus can't be ... 展开更多
关键词 body ELECTRON MICROSCOPY studies OF LENS FROM TWO caseS OF OCULAR SIDEROSIS
暂未订购
上一页 1 2 16 下一页 到第
使用帮助 返回顶部