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New Advances in heat Exchanger Design Software

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New Advances in Heat Exchanger Design Software

第六届化学工程与生物技术展览暨会议

作者： F.J.Aguirre z.h.yang L.huang heat Transfer Research Inc. （HTRI） College Station Texas USA heat Transfer Research Inc. （HTRI） College Station Texas USA heat Transfer Research Inc. （HTRI） College Station Texas USA

＜正＞ heat Transfer Research ,Inc.（hTRI） is an industrial consortium founded in 1962 that Conducts application-oriented research in process heat transfer using industrial-scale test *** use the proprietary research data to develop methods and software for the thermal design and analysis of heat exchangers and fired *** industrial research and development consortium serves the engineering needs of over 500 corporate members.

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REVISIT TO DIELECTRIC PROPERTIES OF FERRITE CERAMICS

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Journal of Advanced Dielectrics 2012年第3期2卷 6-18页

作者： L.B.KONG L.LIU J.W.zhAI z.W.LI z.h.yang School of Materials Science and Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Temasek Laboratories National University of Singapore 5A Engineering Drive 1Singapore 117411 Functional Materials Research Laboratory Tongji University Shanghai 200092 China

Dielectric properties offerrite ceramics have been less reported than their magnetic *** study indicated that ferrite ceramics with very low dielectric loss tangent can be developed byusing appropriate sintering aids,together with the optimization of other sintering parameters suchas sintering temperature and time *** various candidates of sintering aids,Bi_(2)O_(3)isthe most promising *** is important to find that the optimized concentration of sintering aid forfull densification is not sufficient to achieve lowest dielectric loss *** short review was aimed to summarize the understanding in microstructural evolution,grain growth,densificationand dielectric properties offerrite ceramics as a function of sintering aid concentration and sinteringparameters,which could be used as a guidance to develop ferrite ceramics with low dielectric losstangents for various applications.

关键词： Ferrite ceramics DC resistivity complex permittivity dielectric loss tangent densi-¯cation microstructure grain growth

Study of full-scale horizontal integral ring test for super-large-diameter tunnel lining structure

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Study of full-scale horizontal integral ring test for super-...

作者： W.h.Cao,z.J.Chen & z.h.yang Shanghai Tunnel Engineering & Rail Transit Design and Research Institute,Shanghai,P.R.China

The article introduces a full scale horizontal integral ring test of lining structure of Shanghai yangtze River Tunnel which is the largest diameter tunnel in the world(φ15 m).In the test,one ring with a full width of 2 m was placed between two rings with a half width of 1 *** rings are erected with staggered joints. 44 sets of horizontal action jacks and 44 sets of vertical action jacks are used to simulate the load response of the tunnel lining under different embedded depths,different lateral pressures and inter-ring pressing *** analysis of the experimental data,the actual structural safety of lining ring is *** the first time we discover that the axial force is transferred as well as bending moment between rings with staggered *** results provide the reliable basis for structure design optimization.

关键词： Tunnel Study of full-scale horizontal integral ring test for super-large-diameter tunnel lining structure

Design of shield work shaft constructed together with cut-and-cover tunnels

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Design of shield work shaft constructed together with cut-an...

作者： C.N.he & z.h.yang Shanghai Tunnel Engineering & Rail Transit Design and Research Institute,Shanghai,P.R.China

In this paper,optimal design of retaining and bracing structure system is conducted with regards to the special circumstance in construction of the Shanghai yangtze River *** the project,two shield work shafts in Pudong and Changxing Island are constructed together with the cut-and-cover *** of tunnel floors and plan layouts are changed,combining with a serial of requirements on shield launching *** optimal design fully embodies advanced technology,saving project investment and shortened time of implementation etc.,which provides instructive references for future analogous projects.

关键词： Design of shield work shaft constructed together with cut-and-cover tunnels

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热交换器设计软件的新进展

热交换器设计软件的新进展

第六届化学工程与生物技术展览暨会议

作者： F.J.Aguirre z.h.yang L.huang heat Transfer Research Inc. (HTRI) College Station Texas USA

美国传热研究公司(hTRI)是一个创建于1962年的工业联合企业。该企业主要从事过程传热应用研究,并拥有工业规模的大型试验研究设备。本公司利用自己专有的实验研究数据开发热交换器和明火燃烧器的传热设计方法和软件。hTRI的工业技术研...

美国传热研究公司(hTRI)是一个创建于1962年的工业联合企业。该企业主要从事过程传热应用研究,并拥有工业规模的大型试验研究设备。本公司利用自己专有的实验研究数据开发热交换器和明火燃烧器的传热设计方法和软件。hTRI的工业技术研究和开发向世界上500多家公司提供工程技术服务。Xchanger Suite是hTRI的主要软件产品。该产品包括5个子软件,即Xace,Xist,Xphe,Xtlo和Xvib。这些子软件广泛应用于管壳式换热器、空冷器、节能器和板式热交换器的设计、校核和模拟计算,并能对管束排布和因流动引起振动进行严密的计算分析。本报告叙述了Xchanger Suite的主要功能和三维增量计算技术在管壳式换热器中的计算应用,与此同时还用热缸吸管再生锅炉传热计算实例演示hTRI传热设计软件。

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原发鼻咽癌病人治疗前MRI纹理分析的预测价值

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国际医学放射学杂志 2019年第5期 628-628页

作者： J.J.Mao J.Fang X.h.Duan z.h.yang M.h.Cao F.zhang 万欢 Department of Radiology Sun Yat-Sen Memorial Hospital Sun Yat-Sen University

摘要目的确定治疗前MRI纹理分析对原发鼻咽癌(NPC)病人无进展生存期(PFS)的预测价值。方法本回顾性分析研究已通过机构伦理委员会的批准。在79例原发NPC

关键词：纹理分析治疗前鼻咽癌预测价值 MRI

highly conductive and stable iodine doped argyrodite electrolyte for all-solid-state lithium batteries

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Journal of Energy Chemistry 2025年第1期100卷 50-58页

作者： Gaozhan Liu Jing zhang Jing yang Jinghui Chen Xingyue Xiao Xiayin Yao Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences

Lithium argyrodites with high ionic conductivity and low cost are considered as one of the most prospective solid electrolytes for all-solid-state lithium ***,the poor chemical stability and compatibility with lithium metal limit their ***,Li5.4PS4.4Cl1.4I0.2solid electrolyte with high ionic conductivity of 11.49 m S cm-1and improved chemical stability is synthesized by iodine *** ultra-thin Li5.4PS4.4Cl1.4I0.2membrane with thickness of 10μm can be obtained by wet coating process,exhibiting a high ionic conductivity of 2.09 mS cm-1and low areal resistance of 1.17Ω***,iodine doping could in-situ form LiI at the lithium/electrolyte interface and improve the critical current density of Li5.4PS4.4Cl1.6from 0.8 to 1.35 mA *** resultant LiCoO2/Li5.4PS4.4Cl1.4I0.2/Li battery shows excellent cycling stability at 1 C,with a reversible specific capacity of 110.1 mA h g-1and a retention of 80.5% after 1000 *** addition,the assembled LiCoO2/Li5.4PS4.4Cl1.4I0.2membrane/Li pouch cell delivers an initial discharge capacity of 110.4 mA h g-1and 80.5% capacity retention after 100 cycles.

关键词： Argyrodite electrolytes Iodine doping Ionic conductivity Stability All-solid-state lithium battery

Curvature-induced noncommutativity of two different components of momentum for a particle on a hypersurface

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Communications in Theoretical Physics 2021年第2期73卷 73-77页

作者： z Li X yang Q h Liu School for Theoretical Physics School of Physics and ElectronicsHunan UniversiyChangsha 410082China School of Materials Science and Engineering Guilin University of Electronic TechnologyGuilin541004China Synergetice Innovation Center for Quantum Efects and Applications(SICQEA) Hunan Normal UniversityChangsha 410081China

As a nonrelativistic particle constrained to remain on an(N−1)-dimensional((N≥2))hypersurface embedded in an N-dimensional Euclidean space,two different components pi and pj(i,j=1,2,3,...N)of the Cartesian momentum of the particle are not mutually commutative,and explicitly commutation relations[p^(^)_(i),p^(^)_(j)](≠0) depend on products of positions and momenta in uncontrollable *** generalized Dupin indicatrix of the hypersurface,a local analysis technique,is utilized to explore the dependence of the noncommutativity on the curvatures around a local point of the *** first finding is that the noncommutativity can be grouped into two categories;one is the product of a sectional curvature and the angular momentum,and another is the product of a principal curvature and the *** second finding is that,for a small circle lying a tangential plane covering the local point,the noncommutativity leads to a rotation operator and the amount of the rotation is an angle anholonomy;and along each of the normal sectional curves centering the given point the noncommutativity leads to a translation plus an additional rotation and the amount of the rotation is one half of the tangential angle change of the arc.

关键词： constrained motion quantization hypersurface Dirac brackets geometric momentum

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STUDY ON MORPhOLOGY OF ChROMIUM IN ChILLED Cu-0.14%-2.0%Cr ALLOYS

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Acta Metallurgica Sinica(English Letters) 2004年第5期17卷 655-660页

作者： h.W.yang z.K.Fan SchoolofMaterialScienceandEngineering Xi＇anUniversityofTechnologyXi＇an710048China SchoolofMaterialScienceandEngineering Xi＇anUniversityofTechnologyXi＇an710048China

The morphology of chromium in chilled Cu-Cr alloys with 0.14%-2.0% Cr has been studied. The results showed that eutectic Cr phase takes a fibrous shape, and pre-eutectic Cr is dendritic in the studied chilled Cu-Cr alloy. During solute treatment of the eutectic and super-eutectic Cu-Cr alloys, only part of chromium particles dissolved in copper phase, some fiber and dendritic chromium still remained. Forging before solute treatment can reduce the size of primary Cr particles, which benefits the aging structure.

关键词： morphology of Cr Cu-Cr alloy chilling forging

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