检索结果-南通市图书馆

Pinned OS/Services： A Case Study of XML Parsing on Intel SCC

在线全文

学校读者我要写书评

暂无评论

Journal of Computer Science & Technology 2013年第1期28卷 3-13页

作者： Jie Tang Pollawat Thanarungroj chen Liu Shao-Sllan Liu Zhi-Min Gu jean-Luc Gaudiot School of Computer Beijing Institute of Technology Beijing 100081 China Department of Electrical and Computer Engineering Florida International University Miami Florida 33199 U.S.A. Microsoft Redmond Washington 98223 U.S.A. Department of Electrical Engineering and Computer Science University of California Irvine California 92617 U.S.A.

Nowadays, we are heading towards integrating hundreds to thousands of cores on a single chip. However, traditional system software and middleware are not well suited to manage and provide services at such large scale. To improve the scalability and adaptability of operating system and middleware services on future many-core platform, we propose the pinned OS/services. By porting each OS and runtime system （middleware） service to a separate core （special hardware acceleration）, we expect to achieve maximal performance gain and energy efficiency in many-core environments. As a case study, we target on XML （Extensible Markup Language）, the commonly used data transfer/store standard in the world. We have successfully implemented and evaluated the design of porting XML parsing service onto Intel 48-core Single-Chip Cloud Computer （SCC） platform. The results show that it can provide considerable energy saving. However, we also identified heavy performance penalties introduced from memory side, making the parsing service bloated. Hence, as a further step, we propose the memory-side hardware accelerator for XML parsing. With specified hardware design, we can further enhance the performance gain and energy efficiency, where the performance can be improved by 20% with 12.27% energy reduction.

关键词： XML parsing homogeneous multi-core Intel Single-Chip Cloud Computer

A simulation experiment on the GM estimation for Comet 133P/Elst-Pizarro

在线全文

学校读者我要写书评

暂无评论

Research in Astronomy and Astrophysics 2021年第1期21卷 158-164页

作者： Wu-Tong Gao Jian-Guo Yan Wei-Tong Jin Xuan Yang chen Yang Mao Ye Fei Li jean-Pierre Barriot l State Key Laboratory of Information Engineering in Surveying Mapping and Remote SensingWuhan UniversityWuhan 430079China China Academy of Space Technology Beijing 100094China Geodesy Observatory of Tahiti University of French PolynesiaBP 657098702 FaaaTahitiFrench Polynesia

In China’s asteroid mission to be launched around 2025,(7968)133 P/Elst-Pizarro(hereafter 133 P)will be the second target,after a visit to asteroid(469219)Kamo’*** paper describes a simulation of precise orbit determination for the spacecraft around comet 133 P,as well as estimation of its gravitational parameter(GM)value and the solar radiation pressure coefficient Cr for the *** cometocentric distances of 200,150 and 100 km orbits are considered,as well as two tracking modes:exclusive two-way range-rate mode(Earth station to spacecraft)and combinations of two-way range-rate and local spacecraft onboard ranging to the *** to exclusive two-way range-rate,the introduction of local ranging observables improves the final GM uncertainties by up to one order of *** ephemeris error in the orbit of 133 P is also considered,and we show that,to obtain a reliable estimate of the GM for 133 P,this error cannot exceed a one km range.

关键词： celestial mechanics space vehicles comets:individual(133P/Elst-Pizarro) methods:statistical

在线全文

学校读者我要写书评

暂无评论

《茫茫藻海》中的世界主义观

西安外国语大学学报 2024年第3期32卷 119-123页

作者：凌淑珍陈世丹王震西北农林科技大学语言文化学院西北农林科技大学中国化马克思主义海外传播研究中心中国人民大学外国语学院北京理工大学外国语学院

作为在加勒比海和欧洲之间穿梭的世界公民,琼·里斯在其小说《茫茫藻海》中呈现了她深邃的世界主义思想。通过书写来自不同种族、性别和宗教的人共同展现的礼遇等全人类共同价值,她揭示了这些共同价值有助于人类超越不同文明、种族、性... 详细信息

作为在加勒比海和欧洲之间穿梭的世界公民,琼·里斯在其小说《茫茫藻海》中呈现了她深邃的世界主义思想。通过书写来自不同种族、性别和宗教的人共同展现的礼遇等全人类共同价值,她揭示了这些共同价值有助于人类超越不同文明、种族、性别和宗教之间的界限,从而展开富有成效的交往互鉴。同时,里斯通过文学叙事,不仅强调女性、儿童等边缘人群给予他者无条件礼遇的不负责任,而且强调有条件礼遇的必要性。在她看来,对于来自第三世界的边缘人群来说,只有在坚守民族—国家认同的前提下,世界认同才能具有一定的价值和意义。

关键词：琼·里斯《茫茫藻海》礼遇世界主义

Sky reconstruction for the Tianlai cylinder array

在线全文

学校读者我要写书评

暂无评论

Research in Astronomy and Astrophysics 2016年第10期16卷 71-80页

作者： Jiao Zhang Shi-Fan Zuo Reza Ansari Xuelei chen Yi-Chao Li Feng-Quan Wu jean-Eric Campagne Christophe Magneville Key Laboratory of Computational Astrophysics National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100012China Universite Paris-Sud LALUMR 8607F-91898 Orsay CedexFrance&CNRS/IN2P3F-91405 OrsayFrance University of Chinese Academy of Sciences Beijing 100049China Center for High Energy Physics Peking UniversityBeijing 100871China CEA DSM/IRFUCentre d'Etudes de SaclayF-91191 Gif-sur-YvetteFrance

We apply our sky map reconstruction method for transit type interferometers to the Tianlai cylin- der array. The method is based on spherical harmonic decomposition, and can be applied to a cylindrical array as well as dish arrays and we can compute the instrument response, synthesized beam, transfer func- tion and noise power spectrum. We consider cylinder arrays with feed spacing larger than half a wavelength and, as expected, we find that the arrays with regular spacing have grating lobes which produce spurious images in the reconstructed maps. We show that this problem can be overcome using arrays with a different feed spacing on each cylinder. We present the reconstructed maps, and study the performance in terms of noise power spectrum, transfer function and beams for both regular and irregular feed spacing configura- tions.

关键词： cosmology: observation -- HI intensity mapping -- method: transit telescope -- map making

A Review of the Advances Made in Improving the Durability of Welded Wood against Water in Light of the Results of African Tropical Woods Welding

在线全文

学校读者我要写书评

暂无评论

Journal of Renewable Materials 2023年第3期11卷 1077-1099页

作者： jean Jalin Eyinga Biwôlé Achille Bernard Biwolé Antonio Pizzi Joseph Zobo Mfomo César Segovia Atangana Ateba Evariste Fedoung Fongnzossie Sahbi Ouertani Xinyi chen Bénoît Ndiwe DieudonnéAbessolo Pierre-jean Meausoone Laboratory of Forest Resources and Wood Valorization University of DoualaP.O.Box.2701DoualaCameroon Laboratory of Mechanics University of DoualaP.O.Box.2701DoualaCameroon CETELOR University of LorraineP.O.Box.21042EpinalFrance ENSTIB-LERMAB University of LorraineP.O.Box.21042EpinalFrance Laboratory of Energetics and Thermal and Mass Transfers El Manar University of TunisTunisTunisia

Wood plays a major role in the production of furniture and wooden ***,in this process,the massive use of adhesives and plural connectors remains a definite problem for health and the ***,wood welding is a breakthrough in this *** paper reviews the applications of wood welding in furniture and construction and then examines advances in improving the durability of welded wood against *** contribution also highlights the need to join African tropical woods using the rotational friction welding *** to our results,these woods present interesting chemical singularities,which could provide solutions to the water vulnerability of the welded ***,the use of such a joining method would first free the Cameroonian furniture industry from the chemical industry,secondly position it at the forefront of new eco-design trends and thirdly make it competitive with other countries in the Central African *** works enrich the long and rich bibliography on the technique of wood welding,which has long been conspicuous by its absence of tropical woods.

关键词： Wood welding tropical woods water vulnerability chemical singularities natural durability

Loss of algal Proton Gradient Regulation 5 increases reactive oxygen species scavenging and H2 evolution

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Integrative Plant Biology 2016年第12期58卷 943-946页

作者： Mei chen Jin Zhang Lei Zhao Jiale Xing Lianwei Peng Tingyun Kuang jean-David Rochaix Fang Huang Key Laboratory of Photobiology Institute of Botanythe Chinese Academy of SciencesBeijing 100093China University of Chinese Academy of Sciences Beijing 100049China Departments of Molecular Biology and Plant Biology University of GenevaSwitzerland

Summary We have identified hpm91, a Chlamydomonas mutant lacking Proton Gradient Regulation5 （PGRS） capable of producing hydrogen （H2） for 25 days with more than 3o-fold yield increase compared to wild type. Thus, hpm91 displays a higher capacity of H2 production than a previously characterized pgr5 mutant. Physiological and biochemical characterization of hpm91 reveal that the prolonged H2 production is due to enhanced stability of PSII, which correlates with increased reactive oxygen species （ROS） scavenging capacity during sulfur depriva- tion. This anti-ROS response appears to protect the photosynthetic electron transport chain from photo- oxidative damage and thereby ensures electron supply to the hydrogenase.

关键词： Chlamydomonas reinhardtii hpm91 hydrogen photoproduction oxidative stress photosystem II sulfur deprivation

Therapeutic effect of Guijiajiao(Colla Carapacis et Plastri) on bone regeneration in rats and zebrafish

在线全文

学校读者我要写书评

暂无评论

Journal of Traditional Chinese Medicine 2018年第2期38卷 197-210页

作者： Su Weiyang Feng Chienwei Tseng Chungchih Hung Hanchun chen Zhicheng Lee Hsinpai jean Yenhsuan Wu Shingyi Sean Wen Zhihong Department of Marine Biotechnology and Resources National Sun Yat-Sen University Division of Dentistry Zuoying Branch of Kaohsiung Armed Forces General Hospital Doctoral Degree Program in Marine Biotechnology Academia Sinica Doctoral Degree Program in Marine Biotechnology National Sun Yat-Sen University The School of Chinese Medicine for Post Baccalaureate I Shou University Section of Orthopedic Surgery PingtungChristian Hospital Section of Orthopedic Surgery Pingtung Christian Hospital

OBJECTIVE:To investigate the effect of Guijiajiao(Colla Carapacis et Plastri, CCP), the glue of tortoise shell, on bone regeneration in zebrafish and male Wistar ***: In this study, we applied in vitro and in vivo models, tissue section analysis, and quantitative polymerase chain reaction to assess the effects of CCP on bone repair. MG-63 cells were used in alkaline phosphatase(ALP) activity and mineralization assays. Zebrafish and male Wistar rats were used to evaluate the effects of CCP on bone repair in ***: A simple preparation of CCP promoted osteogenesis in vivo and in vitro, and promoted MG-63 cell proliferation as well as ALP activity and mineralization. In addition, CCP activated Akt and extracellular signaling-regulated kinase pathways and significantly increased the expression of ossification-related genes and proteins such as runt-related transcription factor-2, osteocalcin, and osteopontin. The in vivo results revealed promotion of osteogenesis by immersing zebrafish in CCP for 72 *** oral dose of 1.25 g/kg CCP significantly improved skull defects in rats, which was accompanied by an increase in serum ALP ***: One of the ingredients of Guilu Erxianjiao(tortoise shell and deer horn formula) pro-vides a practical alternative therapy for bone regeneration.

关键词： Colla Carapacis et Plastri Testudinis Bone regeneration Alkaline phosphatase Rat Zebrafish

Enhanced allelopathy and competitive ability of invasive plant Solidago canadensis in its introduced range

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Plant Ecology 2013年第3期6卷 253-263页

作者： Yongge Yuan Bing Wang Shanshan Zhang Jianjun Tang Cong Tu Shuijin Hu jean W.H.Yong Xin chen College of Life Sciences Zhejiang UniversityHangzhou 310058China Department of Plant Pathogen North Carolina State UniversityRaleighNC 27695USA Singapore University of Technology and Design 279623 Singapore Yunnan Academy of Forestry Kunming 650200China

Aims Why invasive plants are more competitive in their introduced range than native range is still an unanswered question in plant invasion ***,we used the model invasive plant Solidago canaden-sis to test a hypothesis that enhanced production of allelopathic compounds results in greater competitive ability of invasive plants in the invaded range rather than in the native *** also exam-ined the degree to which the allelopathy contributes increased com-petitive ability of *** in the invaded *** We compared allelochemical production by *** growing in its native area(the USA)and invaded area(China)and also by populations that were collected from the two countries and grown together in a'common garden'greenhouse *** also tested the allelopathic effects of *** collected from either the USA or China on the germination of Kummerowia striata(a native plant in China).Finally,we conducted a common garden,greenhouse experiment in which *** was grown in monocul-ture or with *** from the USA or China to test the effects of allopathy on plant-plant competition with suitable controls such as adding activated carbon to the soil to absorb the allelochemicals and thereby eliminating any corresponding allopathic *** findings Allelochemical contents(total phenolics,total flavones and total saponins)and allelopathic effects were greater in *** sampled from China than those from the USA as demonstrated in a field survey and a common garden *** of ***-ata germination using *** extracts or previously grown in soil was greater using samples from China than from the *** competitive ability of *** against *** was also greater for plants originating from China than those from the *** could explain about 46%of the *** find-ings demonstrated that *** has evolved to be more allelo-pathic and competitive in the introdu

关键词： allelopathy biogeographical approach common garden experiment competition invasion speciesreceived

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

大语言模型的真实与虚拟

天府新论 2024年第5期 55-66+158-159页

作者：陈超锐华东师范大学思勉人文高等研究院

本论文旨在厘清当今商业化的大语言模型带来的真实与虚拟混淆现象。首先，从技术内部视角出发，沿着人工智能发展史溯源，明晰德雷福斯与明斯基等人的分歧。其次，从数学尤其是计算科学中的随机性问题入手，探讨在早期人工智能流派逐渐... 详细信息

本论文旨在厘清当今商业化的大语言模型带来的真实与虚拟混淆现象。首先，从技术内部视角出发，沿着人工智能发展史溯源，明晰德雷福斯与明斯基等人的分歧。其次，从数学尤其是计算科学中的随机性问题入手，探讨在早期人工智能流派逐渐式微后，辛顿等人的人工神经网络改良工作如何让行业重整旗鼓，同时又如何埋下了掩藏真相的隐患。再次，结合鲍德里亚对海湾战争的大众媒介批判和基特勒的软件批判，论述美国意识形态如何通过拟像构建共识，以及这种基于虚拟的权力结构在人工智能时代又是如何进一步加固自身的。而在拟像世界愈发根深蒂固、物质世界逐渐沦为幻象的今日，依然可以从媒介技术层面即编程语言史中找到一种突破虚拟交互界面的可能性，并发现从面向机器编程到面向过程与面向对象编程逻辑变化中暗含着的主体性变迁和用户层面的可操作性。最后，呼吁在人工智能的超现实未来到来之前，对当前的共识进行反思和重塑，以期使科技环境更加透明和真实。

关键词：大语言模型人工神经网络媒介理论技术哲学