检索结果-南通市图书馆

Improving interfacial and electrical properties of HfO_(2)/SiO_(2)/p-Si stacks with N_(2)-plasma-treated SiO_(2) interfacial layer

引用

Rare Metals 2023年第6期42卷 2081-2086页

作者： Xiao-qiang Chen Yu-Hua Xiong Jun Du Feng Wei Hong-Bin Zhao Qing-Zhu Zhang wen-qiang Zhang Xiao-Ping Liang Advanced Electronic Materials Institute General Research Institute for Nonferrous MetalsBeijing100088China State Key Laboratory of Advanced Materials for Smart Sensing General Research Institute for Nonferrous MetalsBeijing100088China Key Laboratory of Microelectronics Devices and Integrated Technology Institute of MicroelectronicsChinese Academy of SciencesBeijing100029China

The effect of N_(2)-plasma-treated SiO_(2) interfacial layer on the interfacial and electrical characteristics of HfO_(2)/SiO_(2)/p-Si stacks grown by atomic layer deposition(ALD) was *** microstructure and interfacial chemical bonding configuration of the HfO_(2)/SiO_(2)/Si stacks were also examined by high-resolution transmission electron microscopy(HRTEM) and X-ray photoelectron spectroscopy(XPS).Compared with the samples without N2-plasma treatment,it is found that the samples with N2-plasma treatment have less oxygen vacancy density for SiO_(2) interfacial layer and better HfO_(2)/SiO_(2) *** agreement with XPS analyses,electrical measurements of the samples with N2-plasma treatment show better interfacial quality,including lower interface-state density(Dit,9.3 × 1011 cm^(-2)·eV^(-1) near midgap) and lower oxidecharge density(Q_(ox),2.5 × 1012 cm^(-2)),than those of the samples without N_(2)-plasma ***,the samples with N_(2)-plasma treatment have better electrical performances,including higher saturation capacitance density(1.49 μF·cm^(-2)) and lower leakage current density(3.2 × 10^(-6) A·cm^(-2) at V_(g)=V_(fb)-1 V).Furthermore,constant voltage stress was applied on the gate electrode to investigate the reliability of these *** shows that the samples with N_(2)-plasma treatment have better electrical stability than the samples without N_(2)-plasma treatment.

关键词： Metal-oxide-semiconductor High-k Atomic layer deposited N_(2)-plasma treatment Interfacial characteristic Reliability

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

Geometric Phase for a Qutrit-Qubit Mixed-Spin System

引用

Chinese Physics Letters 2011年第8期28卷 5-8页

作者： ZHANG Ai-Ping qiang wen-Chao LING Ya-wen XIN Hong YANG Yong-Ming Faculty of Science Xi’an University of Architecture and TechnologyXi’an 710055

We study the geometric phase of a qutrit-qubit mixed-spin system in an external homogeneous magnetic *** the spin-spin interaction strength𝐽and the external magnetic field𝐵can affect the geometric phase of the *** addition,we consider the negativity of the composite *** relationship between the negativity and the geometric phase is ***,we calculate the geometric phase for a thermal mixed state and show how the geometric phase depends on the rescaled coupling parameter and *** the limit𝑇T→0,we can recover the result of the ground *** analysis has some implications in realistic implementations of geometric quantum computation.

关键词： temperature computation field

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

Bound states of the Klein-Gordon and Dirac equations for scalar and vector harmonic oscillator potentials

引用

Chinese Physics B 2002年第8期11卷 757-758页

作者： qiang wen-Chao(强稳朝) Faculty of Science Xi'an University of Architecture and Technology Xi'an 710055 China

We give the exact bound states of the Klein-Gordon and Dirac equations with equal scalar and vector harmonicoscillator potentials.

关键词： harmonic oscillator Klein-Gordon equation Dirac equation bound state

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

A Nano-Micro Engineering Nanofiber for Electromagnetic Absorber,Green Shielding and Sensor

引用

Nano-Micro Letters 2021年第2期13卷 112-123页

作者： Min Zhang Chen Han wen-qiang Cao Mao-Sheng Cao Hui-Jing Yang Jie Yuan School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081People’s Republic of China Department of Physics Tangshan Normal UniversityTangshan 063000People’s Republic of China School of Information Engineering Minzu University of ChinaBeijing 100081People’s Republic of China

It is extremely unattainable for a material to simultaneously obtain efficient electromagnetic(EM)absorption and green shielding performance,which has not been reported due to the competition between conduction loss and ***,by tailoring the internal structure through nano-micro engineering,a NiCo2O4 nanofiber with integrated EM absorbing and green shielding as well as strain sensing functions is *** the improvement of charge transport capability of the nanofiber,the performance can be converted from EM absorption to shielding,or even ***,as the conductivity rising,the reflection loss declines from −52.72 to −10.5 dB,while the EM interference shielding effectiveness increases to 13.4 dB,suggesting the coexistence of the two EM ***,based on the high EM absorption,a strain sensor is designed through the resonance coupling of the patterned NiCo2O4 *** strategies for tuning EM performance and constructing devices can be extended to other EM functional materials to promote the development of electromagnetic driven devices.

关键词： Electromagnetic absorber Electromagnetic shielding NiCo2O4 nanofiber Sensor

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

Assembly-oriented reliability analysis method for the top-connection structure of a nuclear fuel assembly

引用

Nuclear Science and Techniques 2023年第6期34卷 155-170页

作者： Ying-Dong Liu wen-qiang Li Jia-Hao Chen Si-Tong Ling Chang-Fu Wan School of Mechanical Engineering Sichuan UniversityChengdu610065China Innovation Method and Creative Design Key Laboratory of Sichuan Province Chengdu610065China

The nuclear fuel assembly is the core component of a nuclear *** a pressurized water reactor fuel assembly,the top-connection structure connects the top nozzle to the guide *** performance reliability is essential for the stability of the nuclear fuel *** this study,an assembly-oriented reliability analysis method for top-connection structures is presented by establishing an assembly-oriented top-connection structure parameter modeling method and a nonlinear contact gap and penetration correction method.A reliability model of the top-connection assembly structure,including multiple stochastic design variables,was constructed,and the overall reliability of the top-connection assembly structure was obtained via a Kriging model and Monte Carlo *** acquired experimental data were consistent with real-world failure conditions,which verified the practicability and feasibility of the reliability analysis method proposed in this study.

关键词： Assembly Top-connection structure Parametric model Approximation model Structural reliability

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

Bound states of Klein-Gordon equation for ring-shaped harmonic oscillator scalar and vector potentials

引用

Chinese Physics B 2003年第2期12卷 136-139页

作者： qiang wen-Chao(强稳朝) Faculty of Science Xi'an University of Architecture and Technology Xi'an 710055 China

Solving Klein Gordon equation with equal ring-shaped harmonic oscillator scalar and vector potentials, we obtain the exact normalized bound-state wavefunction and energy equation.

关键词： ring-shaped harmonic oscillator Klein Gordon equation bound-states

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

Change in Carbon Dioxide (CO_2) Emissions From Energy Use in China's Iron and Steel Industry

引用

Journal of Iron and Steel Research International 2011年第6期18卷 31-36页

作者： SUN wen-qiang CAI Jiu-ju MAO Hu-jun GUAN Duo jiao State Environmental Protection Key Laboratory of Eco Industry Institute of Thermal and Environmental Engineering Northeastern University Shenyang 110819 Liaoning China Department of Energy and Power Engineering Shenyang Institute of Engineering Shenyang 110136 Liaoning China

As the largest energy consuming manufacturing sector and one of the most important sources of carhon dioxide （CO2） emissions, the China＇s iron and steel industry has paid attention to the study of changing trend and influencing factors of CO2 emissions from energy use. The logarithmic mean Divisia index （LMD1） technique is used to decompose total change in CO2 emissions into four factors： emission factor effect, energy structure effect, energy consumption effect, and steel production effect. The results show that the steel production effect is the major factor which is responsible for the rise in CO2 emissions; whereas the energy consumption effect contributes most to the reduction in CO2 emissions. And the emission factor effect makes a weak negative contribution to the increase of CO2 emis- sions. To find out the detailed relationship between change in energy consumption or steel production and change in CO2 emissions, the correlation equations are also proposed.

关键词： CO2 emissions energy use LMDI technique steel production energy consumption

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

Specific Energy Consumption Analysis Model and Its Application in Typical Steel Manufacturing Process

引用

Journal of Iron and Steel Research International 2010年第10期17卷 33-37页

作者： SUN wen-qiang CAI Jiu-ju DU Tao ZHANG Da-wei The State Environmental Protection Agency Key Laboratory on Eco-Industry Northeastern UniversityShenyang 110819 Liaoning China

Theoretical minimum and actual specific energy consumptions （SEC） of typical manufacturing process （SMP） were studied. Firstly, a process division of a typical SMP in question was conducted with the theory of SEC analysis. Secondly, an exergy analysis model of a subsystem consisting of several parallel processes and a SEC analysis model of SMP were developed. And finally, based on the analysis models, the SEC of SMP was analyzed by means of the statistical significance. The results show that the SEC of typical SMP comprises the theoretical minimum SEC and the additional SEC derived from the irreversibility~ and the SMP has a theoretical minimum SEC of 6.74 GJ/t and an additional SEC of 19.32 GJ/t, which account for 25.88% and 74.12% of the actual SEC, respectively.

关键词： steel manufacturing process theoretical minimum specific energy consumption additional specific energy consumption actual specific energy consumption specific energy consumption analysis exergy analysis

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

Application of Catastrophe Theory in 3D Seismic Data Interpretation of Coal Mine

引用

Journal of China University of Mining and Technology 2005年第4期15卷 339-343页

作者： ZHAO Mu-hua YANG wen-qiang CUI Hui-xia College of Resource and Earth Sciences China University of Mining ＆ Technology Xuzhou Jiangsu 221008 China

In order to detect fault exactly and quickly, cusp catastrophe theory is used to interpret 3D coal seismic data in this paper. By establishing a cusp model, seismic signal is transformed into standard form of cusp catastrophe and catastrophe parameters, including time-domain catastrophe potential, time-domain catastrophe time, frequency-domain catastrophe potential and frequency- domain degree, are calculated. Catastrophe theory is used in 3D seismic structural interpretation in coal mine. The results show that the position of abnormality of the catastrophe parameter profile or curve is related to the location of fault, and the cusp catastrophe theory is effective to automatically pick up geology information and improve the interpretation precision in 3D seismic data.

关键词： catastrophe theory cusp catastrophe cusp model seismic data interpretation

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

Algorithmic cooling based on cross-relaxation and decoherence-free subspace

引用

Science China(Physics,Mechanics & Astronomy) 2020年第7期63卷 47-57页

作者： Heng Yan Wang Jian Pan wen qiang Zheng XinHua Peng Department of Physics Zhejiang University of Science and TechnologyHangzhou 310023China Hefei National Laboratory for Physical Sciences at the Microscale Department of Modern PhysicsUniversity of Science and Technology of ChinaHefei 230026China CAS Key Laboratory of Microscale Magnetic Resonance University of Science and Technology of ChinaHefei 230026China Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China Collaborative Innovation Center for Bio-Med Physics Information Technology College of ScienceZhejiang University of TechnologyHangzhou 310023China

Heat-bath algorithmic cooling(HBAC)has been proven to be a powerful and effective method for obtaining high polarization of the target *** cooling upper bound has been recently found using a specific algorithm,the partner pairing algorithm(PPAHBAC).It has been shown that by including cross-relaxation,it is possible to surpass the cooling ***,by combining cross-relaxation and decoherence-free subspace,we present a two-qubit reset sequence and then generate a new algorithmic cooling(AC)technique using irreversible polarization compression to further surpass the *** proposed two-qubit reset sequence can prepare one of the two qubits to four times the polarization of a single-qubit reset operation in PPA-HBAC for low *** the qubit number is large,the cooling limit of the proposed AC is approximately five times as high as the *** results reveal that cross-relaxation and decoherence-free subspace are promising resources to create new AC for higher polarization.

关键词： algorithmic cooling polarization enhancing cross-relaxation decoherence-free subspace

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：