|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Challenges and developments of automotive fuel cell hybrid power system and control显示文摘Fuel cells are emerging as promising power sources and have attracted increasing attention from industries and academics worldwide. In particular, automotive manufacturers are replacing internal combustion engines in vehicles with fuel cell systems, which are advantaged by zero emissions, high efficiency,and various clean routes that generate pure hydrogen. However, current fuel cell systems are costly, and their corresponding infrastructures are not fully qualified to meet current market demand. This paper reviews the challenges and developments of automotive fuel cell hybrid power systems and their controls. It briefly summarizes the model, control, and optimization issue associated with the research and application of fuel cells in hybrid power systems. After presenting the basic knowledge and discussing the trending size and structure of fuel cells for automotive usage, the review describes models of automotive fuel cell systems,focusing on the electrochemical reaction dynamics and the key parameters influencing their efficiency and lifetime. The control problems associated with automotive fuel cell systems as well as the optimization issue associated with hybrid energy systems(comprising fuel cells, batteries, and ultra-capacitors) are elaborately analyzed. The review concludes with current problems and challenges faced by the energy control systems of fuel cell vehicles. | Jinwu GAO Meng LI Yunfeng HU Hong CHEN Yan MA | 2019 | Science China(Information Sciences)2019，62，5： | 6 |
| 2 | Ontology modeling of semantics in social media:Public issue knowledge base (PIKB)of the Weibo显示文摘Purpose:This study aims to construct an ontology to model the semantics of social media streams,in particular,trending topics and public issues.Design/methodology/approach:Our knowledge base included 10 public events and topics from Weibo respectively,which were collected through keyword search and a crawler program.We used a semi-automatic approach to model and annotate the semantics in social media,and adapted the multi-layered ontology to refine the design based on previous researches,then we used named entity recognition(NER) to extract entities to instantiate the ontology.Relationships were extracted based on co-occurrence measures.Finally,we manually conducted post-filtering evaluation and edited the extracted entities and relationships.Findings:An initial assessment demonstrated that our multi-layered ontology supports various types of queries and analyses in the public issue knowledge base(PIKB),which can serve as an effective tool to query,understand and trace public issues.Research limitations:Manual involvement cannot meet the requirements for challenges of sustainable developments.Since the relationships extracted are fully based on the co-occurrence of entities,rich semantic relationships,such as how much the key players have been involved,could not be fully reflected.Besides,the user evaluation is necessary for further ontology assessment.Practical implications:The PIKB can be used by regular Web users and policy makers to query,understand,and make sense of public events and topics.The methodology and reusable ontology model are useful for institutions that are interested in making use of the social media data.Originality/value:In this study,a multi-layered ontology is applied to model the evolving semantics of public events and trending topics in social media,and the semi-automatic approach could make it possible to extract entities and relationships from large amount of unstructured short texts of user generated content(UGC) from social media. | Yan ZHOU Wei LI Xingfu YUAN Pengyi ZHANG | 2014 | Chinese Journal of Library and Information Science2014，，1： | 2 |
| 3 | Preface to the Special Issue on Active Source Research显示文摘The seismic waveforms may present subtle changes related to the external loadings such as earthquakes(Pei Shunping et al.,2019)and landslides(Larose E.et al.,2015).Monitoring subtle changes provides a complementary tool for studying the dynamic processes(e.g.,Niu Fenglin et al.,2008),which has long been a major subject in seismology.The subsurface can be monitored by using natural repetitive events including repeated earthquakes(e.g.,Song Xiaodong et al.,1996)and ambient seismic noises(e.g.,Mao Shujuan et al.,2019). | WANG Baoshan CHEN Yong | 2019 | Earthquake Research in China2019，33，2： | 2 |
| 4 | Preface to the Special Issue on 2D-Materials-Related Physical Properties and Optoelectronic Devices显示文摘Recent advances in two-dimensional (2D) materials following the successful fabrication of graphene in 2004 by Novoselov and Geim is expected to grow into the new silicon, offering a lifeline for Moore’s law. With the rapid development of the synthesis methods, more and more 2D materials, such as transition metal dichalcogenides (TMDs, MX2), black phosphorus (BP) and InSe with a finite gap are reported to be more promising for achieving this dream since they often offer alternative solutions to compensate for the gapless graphene’s weaknesses. | Ping-Heng Tan Lijun Zhang Lun Dai Shuyun Zhou | 2019 | Journal of Semiconductors2019，40，6： | 2 |
| 5 | Preface to the Special Issue:Towards Improving Understanding and Prediction of Arctic Change and its Linkage with Eurasian Mid-latitude Weather and Climate显示文摘The dramatic changes in the Arctic climate system during recent decades are one of the most prominent features ofglobal climate change. Two most striking and fundamental characteristics are the amplified near-surface warming at a ratetwice the global average since the mid 20th century (e.g., Blunden and Arndt, 2012; Huang et al., 2017), and the rapiddecline of sea-ice extent at a pace of 12.9% (10 yr)-l and thinning of ice thickness by 40% since 1979 (e.g., Kwok andRothrock, 2009; Meier et al., 2012). In conjunction with these changes, the frequency of occurrence of extreme climate andweather events has ostensibly increased across the Northern Hemisphere mid-latitudes, including adverse cold spells, severeheat waves, destructive floods, and persistent droughts (e.g., Coumou and Rahmstorf, 2012). The fact that Arctic climatechanges have coincided with an increase in the frequency of occurrence of extreme events has inspired broad interest inpossible linkages--not only in the climate community, but also the general public, media agencies, and decision makers--inparticular considering the projected future continuation and acceleration of Arctic warming and sea-ice decline (e.g., Zhangand Walsh, 2006; Zhang, 2010; Stroeve et al., 2012; Wang and Overland, 2012). | Xiangdong ZHANG Thomas JUNG Muyin WANG Yong LUO Tido SEMMLER Andrew ORR | 2018 | Advances in Atmospheric Sciences2018，35，1： | 2 |
| 6 | Preface to the special issue of Dense Array Seismology显示文摘Both earthquake seismology and structural seismology rely on observations, which in turn contribute critically to the development of seismology, especially in recent years.In order to understand specific geologic structures and interior processes of the Earth. | Huajian Yao Baoshan Wang Xiaobo Tian Hongfeng Yang Xiaofeng Tian | 2018 | Earthquake Science2018，31，5： | 2 |
| 7 | Special Issue dedicated to the 1^(st) International Conference on Supercritical CO_2 Power System(ICSCPS 2018)显示文摘This Special Issue of Journal of Thermal Science(JTS)contains a selection of peer-reviewed papers from the ICSCPS 2018,held in Beijing,China during June 29^th to July 1^st,2018.The conference was chaired by professor Jinliang Xu from the North China Electric Power University and sponsored by the Ministry of Science and Technology of China based on the National Key Research&Development Project“Fundamental studies and key technology development of high-efficiency carbon dioxide coal-fired power system”. | Jinliang Xu Yinshi Li Jian Xie Gongnan Xie | 2019 | Journal of Thermal Science2019，28，3： | 1 |
| 8 | 新时期下我国审计理论研究若干问题的探索——中国会计学会审计专业委员会2007年会综述显示文摘中国会计学会审计专业委员会2007年度学术年会于2008年5月10日至11日在南京大学召开。本次会议由中国会计学会审计专业委员会主办,南京大学中国审计研究中心承办,澳洲会计师公会(CPA AUSTRALIA)协办。 | 李明辉 杨雄胜 | 2008 | 当代会计评论2008，1，2： | 1 |
| 9 | Mathematica语言在求初等数论整除性问题的应用显示文摘Mathematica语言是使用最广泛的数学软件之一,它使数学中的许多非常繁琐的计算简单化。整除性理论是初等数论重要的基本内容,主要利用Mathematica语言来解决整除性问题,并给出相应的编程和运行结果。 | 祁兰 | 2013 | 价值工程2013，32，4： | 1 |
| 10 | Editor Profiles: Guest Editors of Special Issue on Enhancement of Dissolution and Oral Bioavailability of Poorly Water-soluble Drugs显示文摘Dr. Wei Wu is a professor at the Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai, China. His research interest is in the field of oral drug delivery systems and in vivo fate of drug nanocarriers. He and coworkers invented novel water-quenching ACQ fluorescent dyes to probe the in vivo fate of versatile nanoparticles administered via different routes. | | 2019 | Acta Pharmaceutica Sinica B2019，9，1： | 1 |
| 11 | Preface to the Special Issue:Application of Synchrotron Radiation in Materials Research显示文摘Synchrotron radiation was observed for the first time by Haber et al.at General Electric in the United States in 1947 in a 70-MeV electron synchrotron.The development of synchrotron radiation light source has gone through four generations since the 1960s. | Qiaodan Hu | 2022 | Acta Metallurgica Sinica(English Letters)2022，35，1： | 1 |
| 12 | What Killed Louise Mallard: On the Heroine's Psychological Changes in the Story of an Hour显示文摘Kate Chopin is known for addressing feminist issues many years before the feminist movement began in America. The Story of an Hour, published in 1894, is one of Kate Chopin's most famous stories, which reflects Chopin's view of the vital role that freedom played in women's lives through the depiction of the protagonist's, Louise Mallard's, psychological changes in an hour after the news of her husband's death. In the end, Louise Mallard's death intensifies the drama of the hour and, at the same time, highlights the theme of the story. | 张志鹃 | 2014 | 海外英语2014，，12X： | 1 |
| 13 | Characteristics of soil water retention curve at macro-scale显示文摘Scale adaptable hydrological models have attracted more and more attentions in the hydrological modeling research community, and the constitutive relationship at the macro-scale is one of the most important issues, upon which there are not enough research activities yet. Taking the constitutive relationships of soil water movement--soil water retention curve (SWRC) as an example, this study extends the definition of SWRC at the micro-scale to that at the macro-scale, and aided by Monte Carlo method we demonstrate that soil property and the spatial distribution of soil moisture will affect the features of SWRC greatly. Furthermore, we assume that the spatial distribution of soil moisture is the result of self-organization of climate, soil, ground water and soil water movement under the specific boundary conditions, and we also carry out numerical experiments of soil water movement at the vertical direction in order to explore the relationship between SWRC at the macro-scale and the combinations of climate, soil, and groundwater. The results show that SWRCs at the macro-scale and micro-scale presents totally different features, e.g., the essential hysteresis phenomenon which is exaggerated with increasing aridity index and rising groundwater table. Soil property plays an important role in the shape of SWRC which will even lead to a rectangular shape under drier conditions, and power function form of SWRC widely adopted in hydrological model might be revised for most situations at the macro-scale. | TIAN FuQiang MOU LiQin HU HePing | 2009 | Science China(Technological Sciences)2009，52，10： | 1 |
| 14 | On the Relation between Agricultural Informationization and Rural Informationization显示文摘Through analyzing concept of agriculture and countryside,and overall objective of new socialist countryside construction ' developed production,well-off living,civilized village culture,clean village environment,and democratic management',this paper divides the informationization construction for new socialist countryside into agricultural informationization and rural informationization,and presents the new socialist countryside informationization construction system.Then the paper elaborates connotation of agricultural informationization and rural informationization,differentiates and analyzes the relation between the two concepts.Agricultural informationization and rural informationization influence each other,promote each other,and are integrated into new socialist countryside informationization construction. | GAO Wan-lin WANG Mao-hua ZHANG Gang-hong LI Zhen ZHAO Jia-ning | 2012 | Asian Agricultural Research2012，4，11： | 1 |
| 15 | Editorial for the special issue on marine carbon sequestration and climate change显示文摘In the 1980s,the realization that the ocean was potentially a major sink of atmospheric CO2 stimulated the intemational research community under the auspices of the Scientific Committee of Oceanic Research (SCOR),International Council for Science (ICSU),to launch the multidisciplinary research program Joint Global Ocean Flux Study.Since then,the understanding of the biological,ecological,chemical and physical processes underlying the ocean carbon cycle and the ability to predict its sensitivity to global change have increased enormously.One piece of significant progress from the above intemational joint efforts is the understanding of the biological mechanism of ocean carbon sequestration known as the Biological Carbon Pump (BCP),which depends on the vertical transport of organic matter from surface waters to the deep ocean and the seabed.However,the BCP does not address the following enigma,which was proposed half a century ago:what were the formation mechanisms of the huge pool of refractory dissolved organic carbon (RDOC)in the ocean,which has an amount of carbon equivalent to the total inventory of atmospheric CO2 and an average estimated residence time of 5000 years? | Nianzhi Jiao Zhengtang Guo Louis Legendre Curtis Suttle Richard Rivkin Farooq Azam | 2018 | National Science Review2018，5，4： | 1 |
| 16 | Preface to Special Issue: Recent Advances in Additive Manufacturing of Metals and Alloys显示文摘Metal and alloy component fabrication utilizing various forms of additive or layer manufacturing has become the new manufacturing paradigm worldwide. Over the past decade, the development, installation and application of various forms of metal and alloy additive manufacturing (AM) processes have increased exponentially, led in large part by laser and electron beam powder-bed melt technologies. Along with this global proliferation of new manufacturing strategies has been the corresponding proliferation of journals and books describing various aspects of additive manufacturing and 3D printing. | Yufeng Zheng Lawrence E.Murr | 2019 | Journal of Materials Science & Technology2019，35，2： | 0 |
| 17 | Novel Approaches to the Development and Application of Informetric and Scientometric Tools显示文摘This volume(Vol. 5, No. 3) of the Journal of Data and Information Science(JDIS) is the Part I of the Special Issue on ISSI 2019, the 17 th International Conference on Scientometrics and Informetrics(ISSI2019) held in Rome, on 2–5 September 2019 and includes the first part of the selected posters presented during the conference and extended by the authors afterward. | Giuseppe Catalano Cinzia Daraio Jacqueline Leta Henk F.Moed Giancarlo Ruocco Xiaolin Zhang | 2020 | Journal of Data and Information Science2020，5，3： | 0 |
| 18 | 2022 Emerging Investigator Issue of Science China Chemistry显示文摘It is always my pleasure to introduce and promote young scientists to the scientific community.To this end,Science China Chemistry(SCC)organized special issues for emerging investigators,namely Emerging Investigator Issue[1,2].Starting from 2020,these issues published innovative research work from young scientists who are at an early stage of their independent research careers.The results in these papers have attracted widespread attention and all authors are highly evaluated by the editorial board. | Li-Jun Wan | 2022 | Science China Chemistry2022，65，11： | 0 |
| 19 | Emancipatory reflection on a nursing practice-based ethical issue about nurses' paternalistic decision-making for patients显示文摘Objective: This study aimed to demonstrate and promote the skill of critical emancipatory reflection through reflecting on a nursing practice-based ethical issue about nurses' paternalistic decision-making for patients. Meanwhile, critical awareness will be developed and the underlying issues of paternalism in nursing decision-making will be analyzed. Then, by applying the procedure, improvement in nursing decision-making practice will be expected.Methods: Taylor's model of emancipatory reflection with four steps, including construction, deconstruction, confrontation, and reconstruction, is utilized to guide the author's reflection.Results: Guided by the socialization theory, the author's personal and professional socialization is seen to be associated with the formation of the value of paternalism. The theory of reflexivity is applied to unearth the related issues, including deeper personal value,work environment, as well as historical and cultural contexts. Moreover, the power derived from policy, work relationship, and nursing administration, which could induce paternalism in the author's nursing decision-making practice, was critically debated using the hegemony theory. Finally, new insights into paternalism will be achieved, which enable change in terms of how to facilitate patients' autonomous decision-making.Conclusions: The process of refection makes it clear that respecting patients' right and performing patient-centered caring are the bases to change the paternalism existing in the nursing decision-making practice currently. The reconstruction step assists the author in terms of how to value the patients' autonomy and balance patients' safety and choice, rather than being overprotective; carry out risk assessment, and search for strong evidence to counterbalance the positive and negative aspects of risk-taking; communicate with patients appropriately in a manner that they can comprehend; spend more time to explore patients' preference and choice; make every effort to elevate the patients' decision-making capacity; implement patient-centered care and shared decision-making in nursing practice; consult with other colleagues and obtain the required support when limitations or challenges exist; try to justify and avoid hidden paternalism behind policy or guidelines; deal with the power in hand well and fairly; and also positively face the powers that constrain the author. | Lian-Lian Tang | 2019 | Frontiers of Nursing2019，6，1： | 0 |
| 20 | Special Issue in Honor of Professor Carlos E. Kenig显示文摘It is our great honor and pleasure to be the guest editors for this special issue of the Acta Mathematica Sinica-English Series, a flagship journal of the Chinese Mathematical Society, dedicated to Professor Carlos E. Kenig from the University of Chicago on the occasion of his 65th birthday. | Guozhen Lu Zhongwei Shen | 2019 | Acta Mathematica Sinica,English Series2019，35，6： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员