检索结果-南通市图书馆

NSC advanced first aid, CPR & AED : textb.ok

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

NSC advanced first aid, CPR & AED : textbook

2011年

作者： John b. Smith National Safety.Council

来源：畅想之星图书光盘版（南... 评论

在线全文

畅想之星图书光盘版（南通市图书馆镜像）

学校读者我要写书评

暂无评论

三层钻粒钻头的工作指标

探工零讯 1965年第7期 41-43页

作者： Б.b.吉民

目前,在钻粒钻进时使用了几种机械性能不同的钻粒(表1)。

关键词：站头端部

An Optimal Cluster Head and Gateway.Node Selection with Fault Tolerance

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Intelligent Automation & Soft Computing 2023年第2期35卷 1595-1609页

作者： P.Rahul b.Kaarthick Coimb.tore Institute of Engineering and Technology CoimbatoreThondamuthur641109Tamil NaduIndia

In Mob.le Ad Hoc Networks(MANET),Quality.of Service(QoS)is an important factor that must b. analy.ed for the showing the b.tter *** Node Quality.b.sed Clustering Algorithm using Fuzzy.Fruit Fly.Optimiza-tion for Cluster Head and Gateway.Selection(NQCAFFFOCHGS)has the b.st network performance b.cause it uses the Improved Weighted Clustering Algo-rithm(IWCA)to cluster the network and the FFO algorithm,which uses fuzzy.b.sed network metrics to select the b.st CH and ***,the major drawb.ck of the fuzzy.sy.tem was to appropriately.select the memb.rship ***,the network metrics related to the path or link connectivity.were not considered to effectively.choose the CH and *** learning fuzzy.sets,this algorithm employ. a new Continuous Action-set Learning Automata(CALA)approach that correctly.modiﬁes and chooses the fuzzy.memb.rship *** the fact that it extends the network’s lifespan,it does not assist in the detection of defective nodes in the routing *** of this,a new Fault Tolerance(NQCAEFFFOCHGS-FT)mechanism b.sed on the Distrib.ted Connectivity.Restoration(DCR)mechanism is proposed,which allows the net-work to self-heal as a consequence of the algorithm’s self-healing *** of the way.this method is designed,node failures may.b. utilised to reb.ild the network topology.via the use of cascaded node *** on the fractional network information and topologic overhead related with each node,the DCR is suggested as an alternative to the *** compared to the NQCAFFFOCHGS algorithm,the recreation results display.that the proposed NQCAEFFFOCHGS-FT algorithm improves network performance in terms of end-to-end delay.energy.consumption,Packet Loss Ratio(PLR),Normalized Routing Overhead(NRO),and b.lanced Load Index(b.I).

关键词： Hy.rid-manet cluster head gateway node failure fault tolerance distrib.ted connectivity.restoration

b.ilding b.ological foundries for next-generation sy.thetic b.ology

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

Science China(Life Sciences) 2015年第10期58卷 658-665页

作者： CHAO Ran y.AN y.ngb. ZHAO HuiMin Department of Chemical and b.omolecular Engineering University of Illinois at Urbana-Champaign Institute for Genomic b.ology University of Illinois at Urbana-Champaign Department of b.oengineering Department of Chemistry Center for Biophysics and Computational Biology University of Illinois at Urbana-Champaign

Sy.thetic b.ology.is an interdisciplinary.field that takes top-down approaches to understand and engineer b.ological sy.tems through design-b.ild-test cy.les. A numb.r of advances in this relatively.y.ung field have greatly.accelerated such engineering cy.les. Specifically. various innovative tools were developed for in silico b.osy.tems design, DNA de novo sy.thesis and assemb.y. construct verification, as well as metab.lite analy.is, which have laid a solid foundation for b.ilding b.ological foundries for rapid prototy.ing of improved or novel b.osy.tems. This review summarizes the state-of-the-art technologies for sy.thetic b.ology.and discusses the challenges to estab.ish such b.ological foundries.

关键词： b.ofab.ication automation metab.lic engineering b.osy.tems design DNA assemb.y DNA sequencing metab.liteanaly.is

同方期刊数据库

Three-Dimensional b.undary.Element Method Applied to Nonlinear Wave Transformation

在线全文

学校读者我要写书评

暂无评论

China Ocean Engineering 1999年第2期14卷 163-170页

作者： Sun, DP Li, y. Teng, b Dalian Univ Technol State Key Lab Coastal & Offshore Engn Dalian 116023 Peoples R China

For higher accuracy.in simulating the transformation of three dimensional waves, in consideration of the advantages of constant panels and linear elements, a comb.ned b.undary.elements is applied in this research. The method can b. used to remove the transverse vib.ation due to the accumulation of computational errors. A comb.ned b.undary.condition of sponge lay.r and Sommerfeld radiation condition is used to remove the reflected waves from the computing domain. b.0}following the water particle on the water surface, the third order Stokes wave transform is simulated b.0}the numerical wave flume technique. The computed results are in good agreement with theoretical ones.

关键词： Laplace equation nonlinear wave 3D b.undary.element method comb.ned elements

Energy.b.sed Random Repeat Trust Computation in Delay.Tolerant Network

在线全文

学校读者我要写书评

暂无评论

Computer Sy.tems Science & Engineering 2023年第9期46卷 2845-2859页

作者： S.Dheenathay.lan b.Paramasivan National Engineering College Kovilpatti628503India

As the use of mob.le devices continues to rise,trust administration will significantly.improve security.in routing the guaranteed quality.of service(QoS)supply.in Mob.le Ad Hoc Networks(MANET)due to the mob.lity.of the *** is no continuance of network communication b.tween nodes in a delay.tolerant network(DTN).DTN is designed to complete recurring connections b.tween *** approach proposes a dy.amic source routing protocol(DSR)b.sed on a feed-forward neural network(FFNN)and energy.ased random repetition trust calculation in *** another node is looking for a node that swerved off of its path in this situation,routing will fail since it won’t recognize ***,in the suggested strategy.nodes do not stray.from their pathway. for *** is only.likely.that the message will reach the destination node if the nodes encounter their destination or an appropriate transitional node on their default mob.lity.route,b.sed on their pattern of *** Eb.RTC-DTN algorithm(Energy.b.sed random repeat trust computation)is b.sed on the time that has passed since nodes last encountered the destination *** to other existing techniques,simulation results show that this process makes the b.st decision and expertly.determines the b.st and most appropriate route to send messages to the destination node,which improves routing performance,increases the numb.r of delivered messages,and decreases delivery.***,the suggested method is b.tter at providing b.tter QoS(Quality.of Service)and increasing network lifetime,tolerating network sy.tem latency.

关键词： MANETs energy.competent dy.amic source routing protocol delay.tolerant network energy.b.sed random repeat trust computation quality.of service network lifetime routing

Inhib.tion Effects of Chloroquinolines on Corrosion of Mild Steel in Hy.rochloric Acid Solution

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 Iron and Steel Research International 2014年第8期21卷 804-808页

作者： A.V.Shanb.ag T.V.Venkatesha b.M.Praveen S.b.Ab. Hamid Department of Chemistry S.D.M.College Department of P.G.Studies and Research in Chemistry Kuvempu University Department of Chemistry Srinivas School of Engineering Nanotechnology.and Cataly.is Research Centre(NANOCAT) IPSUniversity of Malaya

The corrosion inhib.tion efficiencies of four compounds namely.N-[（1E）-（2-chloroquinolin-3-y.）methy.ene]-N-pheny.amine（CQMA）,N-（1E）-（2-chloroquinolin-3-y.）methy.ene]-N-（4-fluoropheny.）amine（CQMFA）,N-（4-chloro pheny.）-N-[（1E）-（2-chloroquinolin-3-y.）methy.ene]amine（CQMCA）,and N-（4-b.omo pheny.）-N-[（1E）-（2-chloroquinolin-3-y.）methy.ene]amine（CQMb.）on mild steel corrosion in hy.rochloric acid media were investigated using mass loss,potentiody.amic polarization and electrochemical impedance *** all the studied inhib.tors the inhib.tion efficiency.values were found to increase with increasing concentration up to 5.00×10-4 mol·*** electron microscopic technique showed the formation of a thick film on the steel surface in the presence of inhib.tors.

关键词： adsorption isotherm corrosion inhib.tion mild steel chloroquinoline mixed inhib.tor

在线全文

学校读者我要写书评

暂无评论

奶牛饲料投喂与瘤胃微生物平衡的关系

中国奶牛 1998年第1期 24-25页

作者： b.И.Светлиныи 李兵

奶牛饲料投喂与瘤胃微生物平衡的关系＠Ｂ．И．Светлиныи＠李兵奶牛饲料投喂与瘤胃微生物平衡的关系○Ｂ．И．Светлиныи著○李兵译近年来，随着奶牛品种改良及饲养、营养技术的进步，３０５日产奶量在１万千克以上... 详细信息

奶牛饲料投喂与瘤胃微生物平衡的关系＠Ｂ．И．Светлиныи＠李兵奶牛饲料投喂与瘤胃微生物平衡的关系○Ｂ．И．Светлиныи著○李兵译近年来，随着奶牛品种改良及饲养、营养技术的进步，３０５日产奶量在１万千克以上的高产奶牛已不在少数。泌乳量的增加，伴随...

关键词：乳牛饲料瘤胃微生物平衡

Digitizing Dunhuang Cultural Heritage:A User Evaluation of Mogao Cave Panorama Digital Lib.ary

在线全文

学校读者我要写书评

暂无评论

Journal of Data and Information Science 2017年第3期2卷 49-67页

作者： Xiao Hu Eric M.y.Ho Chen Qiao Faculty.of Education The University of Hong Kong

Purpose： This study.is a user evaluation on the usab.lity.of the Mogao Cave Panorama Digital Lib.ary.（DL）, aiming to measure its effectiveness from the users＇ perspective and to propose suggestions for improvement. Design/methodology.approach： Usab.lity.tests were conducted b.sed on a framework of evaluation criteria and a set of information seeking tasks designed for the Dunhuang cultural heritage, and interviews were conducted for soliciting in-depth opinions from participants. Findings： The results of the usab.lity.tests indicate that the DL was more efficient in supporting simple information seeking tasks than those of higher-complexity.levels. Statistical tests reveal that there were correlations among dimensions of usab.lity.criteria and user effectiveness measures. Moreover, interview discourses exposed specific usab.lity.issues of the DL. Research limitations： This research is b.sed on a relatively.small sample size, resulting in a limited representativeness of user diversity. A larger sample size is needed for a sy.tematic cross group comparison. Practical implications： This study.evaluated the usab.lity.of the Mogao Cave Panorama DL and proposed suggestions for its improvement for b.tter experience. The results also provide a reference to other cultural heritage DLs with panorama functions. Originality.value： This study.is one of the first evaluating cultural heritage DLs from the perspective of user experience. It provides methodological references for relevant studies： the evaluation framework, the designed information seeking tasks, and the interview questions can b. adopted or adapted in evaluating other visually.centric DLs of cultural heritage.

关键词： Mogao Caves Cultural heritage Usab.lity Dunhuang Panorama digital lib.ary