检索结果-南通市图书馆

Multiple indicators and analytic hierarchy process(AHP)for comprehensive performance evaluation of exhaust hood

Building Simulation 2022年第6期15卷 1097-1110页

作者： Jing-jing Zhao Ruo-ning Chen Jia-hua Wang xue-yi you Tianjin Key Lab of Indoor Air Environmental Quality Control School of Environmental Science and EngineeringTianjin UniversityTianjinChina Ningbo FOTILE Kitchen Ware Co. Ltd.NingboChina

Indicators are the basis for judging the working performance of exhaust hood and capture performance are usually used as the only *** evaluation index system including three factors of cooking oil fumes(COF)instantaneous capture,health risk impact and thermal comfort was proposed to assess the comprehensive performance of exhaust hood in the present *** primary capture efficiency(PCE)of formaldehyde,the PCE of particulate matter with the diameter less than or equal to 2.5μm(PM_(2.5)),the incremental lifetime cancer risk(ILCR)of formaldehyde,the ILCR of PM_(2.5)and the predicted mean vote(PMV),which can all be quantified with the aid of computational fluid dynamics(CFD),were selected as the *** the analytic hierarchy process(AHP)method was introduced to perform the comprehensive performance evaluation of exhaust *** performance of two exhaust hood structures(grille and orifice type)with three exhaust rates(3000,4000,and 5000 m^(3)/h)in two cooking zones of a university canteen kitchen were *** result showed that the reduction of ILCR of COF exposure is the most important to the performance of exhaust *** comprehensive performance of orifice exhaust hood with exhaust rate of 4000 and 5000 m^(3)/h are optimal;the orifice exhaust hood with exhaust of 3000 m^(3)/h and grille exhaust hood with exhaust rate of 5000 m^(3)/h are moderate;the grille exhaust hood with exhaust rate of 3000 and 4000 m^(3)/h are ***-making priorities based on comprehensive and individual performance are not exactly the same in the two cooking *** is necessary to use the index system to evaluate the comprehensive performance of exhaust hood that considers the impact on human health and thermal comfort.

关键词： evaluation index system analytic hierarchy process comprehensive performance exhaust hood computational fluid dynamics

来源：

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

Cooking grease particles purification review and technology combination strategy evaluation for commercial kitchens

引用

Building Simulation 2021年第6期14卷 1597-1617页

作者： Dongfang Zhao xue-yi you Tianjin Key Lab of Indoor Air Environmental Quality Control School of Environmental Science and EngineeringTianjin UniversityJinnan DistrictTianjin 300350China

Effective emission control of cooking oil fumes(COFs),particularly for grease particles,has always been a cause of great concern for catering *** review and evaluation of combinations of purification technology are urgently *** work presents a literature review and combination strategy evaluation of purification technology of grease particles of commercial kitchens.A variety of mainstream purification technologies,such as mechanical separation(M),filtration(F),washing absorption(W)and electrostatic deposition(E)are *** order to establish a complete and efficient fume purification system for commercial kitchen,this study proposes the four-point principles of combined purification technologies as:(1)from easy to difficult(for grease particle diameter);(2)fire prevention and noise reduction;(3)electrostatic deposition postposition;(4)Absorption and dissolution(by-product from electrostatic).Based on the above principles and separation characteristics,the recommended combinations of purification strategies are M-E,F-E,M-F-E and *** combination strategy of M-F-E is adopted as an example to evaluate and optimize COFs purification system use life cycle assessment *** results indicate that the optimization of the M-F-E purification system using rotating mesh plate instead of baffle filter can reduce the environmental impact of global warming and eutrophication by about 35%which reduces the emissions of CO_(2)and SO_(2)from 92.533 kg and 0.110 kg to 60.214 kg and 0.072 kg,*** the review of relevant purification technologies,the study also proposes the combination of principles of purification technologies and the evaluation and optimization of life cycle assessment for the optimal design of combined purification system.

关键词： combination strategy commercial kitchen cooking grease particles environmental impact assessment purification technology

来源：

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

Phase-Field Simulation of Sintering Process:A Review

引用

Computer Modeling in Engineering & Sciences 2024年第8期140卷 1165-1204页

作者： Ming xue Min yi State Key Laboratory ofMechanics and Control forAerospace Structures&Institute for Frontier Science&Key Laboratory for Intelligent Nano Materials and Devices of Ministry of Education&College of Aerospace Engineering Nanjing University of Aeronautics and Astronautics(NUAA)Nanjing210016China

Sintering,a well-established technique in powder metallurgy,plays a critical role in the processing of high melting point materials.A comprehensive understanding of structural changes during the sintering process is essential for effective product *** phase-field method stands out for its unique ability to simulate these structural *** its widespread application,there is a notable absence of literature reviews focused on its usage in sintering ***,this paper addresses this gap by reviewing the latest advancements in phase-field sintering models,covering approaches based on energy,grand potential,and entropy *** characteristics of various models are extensively discussed,with a specific emphasis on energy-based models incorporating considerations such as interface energy anisotropy,tensor-form diffusion mechanisms,and various forms of rigid particle motion during ***,the paper offers a concise summary of phase-field sintering models that integrate with other physical fields,including stress/strain fields,viscous flow,temperature field,and external electric *** conclusion,the paper provides a succinct overview of the entire content and delineates potential avenues for future research.

关键词： Phase-field model review sintering additive manufacturing

来源：

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

Some Convergence Properties for Weighted Sums of Martingale Difference Random Vectors

引用

Acta Mathematica Sinica,English Series 2024年第4期40卷 1127-1142页

作者： yi WU xue Jun WANG School of Big Data and Artificial Intelligence Chizhou UniversityChizhou 247000P.R.China School of Big Data and Statistics Anhui UniversityHefei 230601P.R.China

Let{X_(ni),F_(ni);1≤i≤n,n≥1}be an array of R^(d)martingale difference random vectors and{A_(ni),1≤i≤n,n≥1}be an array of m×d matrices of real *** this paper,the Marcinkiewicz-Zygmund type weak law of large numb... 详细信息

关键词： Martingale difference random vectors weighted sums Marcinkiewicz–Zygmund type weak law of large numbers complete convergence strong law of large numbers multivariate simple linear regression model

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Feasible Teleportation Schemes with Five-Atom Entangled State

引用

Communications in Theoretical Physics 2006年第1期45卷 83-86页

作者： xue Zheng-Yuan yi you-Min CAO Zhuo-Liang School of Physics ＆ Material Science Anhui University Hefei 230039 China

有一个五原子的纠缠的状态的远距传物计划被调查。Inthe 远距传物计划贝尔状态大小(BSM ) 对物理实现困难，因此我们基于洞量 electrodynamics 技术用分开的大小调查另一策略而不是 BSM。二原子的纠缠的州的远距传物的计划是一控制并且... 详细信息

有一个五原子的纠缠的状态的远距传物计划被调查。Inthe 远距传物计划贝尔状态大小(BSM ) 对物理实现困难，因此我们基于洞量 electrodynamics 技术用分开的大小调查另一策略而不是 BSM。二原子的纠缠的州的远距传物的计划是一控制并且概率的。为三原子的纠缠的状态的远距传物，计划是概率的。忠实和成功的远距传物的概率也被获得。

关键词：可行性五原子混乱态 Bell态测量 BSMs 分离测量

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Teleportation of Multipartite State via W State

引用

Communications in Theoretical Physics 2006年第3期45卷 433-436页

作者： xue Zheng-Yuan yi you-Min CAO Zhuo-Liang Anhui Key Laboratory of Information Material ＆ Devices School of Physics ＆ Material Science Anhui University Hcfci230039 China

经由 W 状态移植一个多粒子状态的电视的一个计划被介绍。TheW 班状态用作量隧道。在发送者操作两 Von Neumann 测量和钟状态大小以后然后通知接收装置她的结果，接收装置能重建由相应单一的转变的原来的状态。成功的远距传物的概率也... 详细信息

经由 W 状态移植一个多粒子状态的电视的一个计划被介绍。TheW 班状态用作量隧道。在发送者操作两 Von Neumann 测量和钟状态大小以后然后通知接收装置她的结果，接收装置能重建由相应单一的转变的原来的状态。成功的远距传物的概率也被获得。四粒子的状态的特殊例子详细被讨论。

关键词：多态 W态 Bell态测量多粒子态量子通道

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Teleportation with Tripartite Entangled State via Thermal Cavity

引用

Communications in Theoretical Physics 2006年第2X期46卷 225-228页

作者： xue Zheng-Yuan yi you-Min CAO Zhuo-Liang School of Physics and Material Science Anhui University Hefei 230039 China

Teleportation schemes with a tripartite entangled state in cavity QED are investigated. The schemes do not need Bell state measurements and the successful probabilities reach optimality. In addition, the schemes are insensitive to both the cavity decay and the thermal field. We first consider two teleportation schemes via a tripartite GHZ state. The first one is a controlled one for an unknown single-qubit state. The second scheme is teleportation of unknown two-atom entangled state. Then we consider teleporting of single-qubit arbitrary state via a tripartite W state.

关键词：三重纠缠态 QED腔 Bell态最优性空腔衰退量子态

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Quantum Teleportation of Tripartite Arbitrary State via W State

引用

Communications in Theoretical Physics 2005年第6X期44卷 1021-1024页

作者： xue Zheng-Yuan yi you-Min CAO Zhuo-Liang Anhui Key Laboratory of Information Material & Devices School of Physics & Material Science Anhui University Hefei 230039 China

A scheme of teleportation of a tripartite state via W state is suggested. The W state serves as quantum channels. Standard Bell-state measurements and Von Neumann measurements are performed. After the sender operates the measurements and informs the receiver her results, he can reconstruct the original state by the corresponding unitary transformation. The probability of the successful teleportation is also obtained.

关键词：量子传输 W态单式转化量子论

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A Quick Calculation Method for Radiation Pattern of Submillimeter Telescope with Deformation and Displacement

引用

Research in Astronomy and Astrophysics 2024年第3期24卷 249-265页

作者： Jia you yi-Wei Yao Zheng Wang School of Automation Southeast UniversityNanjing 210096China

Radiation pattern captures the electromagnetic performance of reflector antennas,which is significantly affected by the deformation of the primary reflector due to gravity and the displacement of the secondary *** the design process of large reflector antennas,a substantial amount of time is often dedicated to iteratively adjusting structural parameters and validating electromagnetic *** improve the efficiency of the design process,we first propose an approximate calculation method of optical path difference(OPD)for the deformation of the primary reflector under gravity and the displacement of the secondary *** an OPD fitting function based on the modified Zernike polynomials is proposed to capture the phase difference of radiation over the aperture plane,based on which the radiation pattern will be obtained quickly by the aperture field integration *** experiments demonstrate the effectiveness of the proposed quick calculation method for analyzing the radiation pattern of a 10.4 m submillimeter telescope antenna at its highest operating frequency of 856 *** comparison with the numerical simulation method based on GRASP(which is an antenna electromagnetic analysis tool combining physical optics(PO)and physical theory of diffraction(PTD)),the quick calculation method reduces the time for radiation pattern analysis from more than one hour to less than two ***,the quick calculation method exhibits excellent accuracy for the figure of merit(FOM)of the radiation ***,the proposed quick calculation method can obtain the radiation pattern with high speed and *** to the time-consuming numerical simulation method(PO and PTD),it can be employed for quick analysis of the radiation pattern for the lateral displacement of the secondary reflector and the deformation of the primary reflector under gravity in the design process of a reflector antenna.

关键词： instrumentation high angular resolution-methods data analysis-methods analytical

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Ultrahigh spatiotemporal resolution beam signal reconstruction with bunch phase compensation

引用

Nuclear Science and Techniques 2024年第5期35卷 99-108页

作者： you-Ming Deng Yong-Bin Leng Xing-yi Xu Jian Chen yi-Mei Zhou Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China University of the Chinese Academy of Sciences Beijing 100049China Shanghai Synchrotron Radiation Facility Chinese Academy of SciencesShanghai 201204China University of Science and Technology of China Hefei 230026China Shanghai Advanced Research Institute Chinese Academy of SciencesShanghai 201204China

Various electromagnetic signals are excited by the beam in the acceleration and beam-diagnostic elements of a particle *** is important to obtain time-domain waveforms of these signals with high temporal resolution for research,such as the study of beam–cavity interactions and bunch-by-bunch parameter ***,a signal reconstruction algorithm with ultrahigh spatiotemporal resolution and bunch phase compensation based on equivalent sampling is proposed in this *** with traditional equivalent sampling,the use of phase compensation and setting the bunch signal zero-crossing point as the time reference can construct a more accurate reconstructed *** basic principles of the method,simulation,and experimental comparison are also *** on the beam test platform of the Shanghai Synchrotron Radiation Facility(SSRF)and the method of experimental verification,the factors that affect the reconstructed signal quality are analyzed and discussed,including the depth of the sampled data,quantization noise of analog-to-digital converter,beam transverse oscillation,and longitudinal *** results of the beam experiments show that under the user operation conditions of the SSRF,a beam excitation signal with an amplitude uncertainty of 2%can be reconstructed.

关键词： Turn-by-turn bunch phase compensation technique Equivalent sampling Signal reconstruction algorithm Ultrahigh spatiotemporal resolution SSRF

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：