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Neutral Pion Electromagnetic Form Factor as a Bound System of 3 + 1 Dimensional QCD
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作者 Teruo Kurai 《Journal of Modern Physics》 2024年第7期1036-1044,共9页
We investigate a neutral pion electromagnetic form factor in momentum space and obtain Gaussian-like function for it. The characteristic form of our neutral pion electromagnetic form factor is consistent with the resu... We investigate a neutral pion electromagnetic form factor in momentum space and obtain Gaussian-like function for it. The characteristic form of our neutral pion electromagnetic form factor is consistent with the results published by Jefferson Lab Hall A Collaboration. . 展开更多
关键词 neutral Pion Electromagnetic Form Factor Gaussian-Like Function
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一类Neutral时滞系统的鲁棒故障检测方法
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作者 张登峰 王执铨 胡寿松 《仪器仪表学报》 EI CAS CSCD 北大核心 2005年第1期97-99,103,共4页
针对一类具有不确定输入的 Neutral时滞系统 ,应用 H∞ 控制理论和 L yapunov原理得到了系统的带记忆状态观测器的鲁棒故障检测方法。证明并给出了观测器对不确定性具有 L2 范数界的渐近稳定条件和增益阵设计的线性矩阵不等式(L MI)方... 针对一类具有不确定输入的 Neutral时滞系统 ,应用 H∞ 控制理论和 L yapunov原理得到了系统的带记忆状态观测器的鲁棒故障检测方法。证明并给出了观测器对不确定性具有 L2 范数界的渐近稳定条件和增益阵设计的线性矩阵不等式(L MI)方法 ,同时使残差体现了对故障信号响应的灵敏度。仿真算例表明了该方法进行鲁棒故障检测的有效性。 展开更多
关键词 鲁棒故障检测 时滞系统 线性矩阵不等式(LMI) 状态观测器 渐近稳定 不确定 H∞控制理论 范数 证明 算例
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Kinetics and isotherms of Neutral Red adsorption on peanut husk 被引量:16
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作者 HAN Runping HAN Pan +2 位作者 CAI Zhaohui ZHAO Zhenhui TANG Mingsheng 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2008年第9期1035-1041,共7页
Adsorption of Neutral Red (NR) onto peanut husk in aqueous solutions was investigated at 295 K. Experiments were carried out as function of pH, adsorbent dosage, contact time, and initial concentration. The equilibriu... Adsorption of Neutral Red (NR) onto peanut husk in aqueous solutions was investigated at 295 K. Experiments were carried out as function of pH, adsorbent dosage, contact time, and initial concentration. The equilibrium adsorption data were analyzed by Langmuir, Freundlich, Temkin, Dubinin-Radushkevich, and Toth isotherm models. The results indicated that the Toth and Langmuir models provided the best correlation of the experimental data. The adsorption capacity of peanut husk for the removal of NR was deter... 展开更多
关键词 peanut husk neutral Red adsorption isotherms KINETICS
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OSCILLATION CRITERIA FOR SECOND ORDER NONLINEAR DIFFERENTIAL EQUATIONS OF NEUTRAL TYPE 被引量:18
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作者 Gai Mingjiu Shi Bao Zhang Decun 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2001年第2期122-126,共5页
In this paper,the oscillation criteria for the solutions of the nonlinear differential equations of neutral type of the forms:[x(t)+p(t)x(σ(t))]″+q(t)f(x(τ(t)))g(x′(t))=0and[x(t)+p(t)x(σ(t))]″+q(t)f(x(t),x(τ(t)... In this paper,the oscillation criteria for the solutions of the nonlinear differential equations of neutral type of the forms:[x(t)+p(t)x(σ(t))]″+q(t)f(x(τ(t)))g(x′(t))=0and[x(t)+p(t)x(σ(t))]″+q(t)f(x(t),x(τ(t)))g(x′(t))=0are obtained. 展开更多
关键词 Second order nonlinear differential equations neutral type oscillations.
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Conceptual Design of Neutral Beam Injection System for EAST 被引量:18
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作者 胡纯栋 NBI Team 《Plasma Science and Technology》 SCIE EI CAS CSCD 2012年第6期567-572,共6页
Neutral beam injection (NBI) system with two neutral beam injections will be con- structed on the Experimental Advanced Superconducting Tokamak (EAST) in two stages for high power auxiliary plasmas heating and non... Neutral beam injection (NBI) system with two neutral beam injections will be con- structed on the Experimental Advanced Superconducting Tokamak (EAST) in two stages for high power auxiliary plasmas heating and non-inductive current drive. Each NBI can deliver 2-4 MW beam power with 50-80 keV beam energy in 10-100 s pulse length. Each elements of the NBI system are presented in this contribution. 展开更多
关键词 neutral beam injection system TOKAMAK EAST auxiliary heating
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Effects of neutral salt and alkali on ion distributions in the roots,shoots,and leaves of two alfalfa cultivars with differing degrees of salt tolerance 被引量:8
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作者 WANG Xiao-shan REN Hai-long +2 位作者 WEI Zen-wu WANG Yun-wen REN Wei-bo 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2017年第8期1800-1807,共8页
The effects of neutral salt and alkali on the ion distribution were investigated in two alfalfa (Medicago sativa L.) cultivars, including Zhongmu 1, a high salt-tolerant cultivar, and Algonquin, a low salt-tolerant ... The effects of neutral salt and alkali on the ion distribution were investigated in two alfalfa (Medicago sativa L.) cultivars, including Zhongmu 1, a high salt-tolerant cultivar, and Algonquin, a low salt-tolerant cultivar. The alkali stress expressed more serious growth inhibition than the neutral salt stress at the same Na+ concentration. Compared with Algonquin, Zhongmu 1 did not exhibit a higher alkali tolerance under the Na2CO3-NaHCO3 treatment with the low Na+ concentration (50 mmol L-l). The alkali increased the accumulation of Na+, Ca2+, and Mg2+ in the root and changed the Ca2+ and Mg2+ balance in the entire alfalfa plant. The salt and alkali stresses decreased the K+ and Fe3+ contents of the roots and leaves, the root Mn2+ content, and the shoot Zn2+ content, but they increased the Fe3+ accumulation of the shoots, the shoot and leaf Cu2+ contents, and the leaf Zn2+ content in both alfalfa cultivars. Based on the results obtained under the conditions of this experiment, we found that the salt and alkali stresses reduced the plant growth in both alfalfa cultivars, while the alkali caused a stronger stress than the neutral salt in alfalfa. Thus, we conclude that under hydroponic conditions, the deleterious effects of the alkali on plants are due to the distribution change of some trophic ion balance in the roots, shoots, and leaves of the plants by causing of Na+, CO3^2-, and/or HCO3- stresses. 展开更多
关键词 ALFALFA ion distribution neutral salts ALKALI stress
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EXACT CONTROLLABILITY AND CONTINUOUS DEPENDENCE OF FRACTIONAL NEUTRAL INTEGRO-DIFFERENTIAL EQUATIONS WITH STATE-DEPENDENT DELAY 被引量:17
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作者 马和平 刘斌 《Acta Mathematica Scientia》 SCIE CSCD 2017年第1期235-258,共24页
In the present paper,with the help of the resolvent operator and some analytic methods,the exact controllability and continuous dependence are investigated for a fractional neutral integro-differential equations with ... In the present paper,with the help of the resolvent operator and some analytic methods,the exact controllability and continuous dependence are investigated for a fractional neutral integro-differential equations with state-dependent delay.As an application,we also give one example to demonstrate our results. 展开更多
关键词 CONTROLLABILITY continuous dependence fractional neutral integro-differentialequations state-dependent delay resolvent operator
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EXISTENCE OF POSITIVE PERIODIC SOLUTIONS FOR NEUTRAL FUNCTIONAL DIFFERENTIAL EQUATIONS WITH DEVIATING ARGUMENTS 被引量:23
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作者 LuShiping GeWeigao 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2002年第4期382-390,共9页
By means of an abstract continuation theorem, the existence criteria are established for the positive periodic solutions of a neutral functional differential equation d N d t=N(t)[a(t)-β(t)N(t)-b(t)N(t-σ(t))-c(... By means of an abstract continuation theorem, the existence criteria are established for the positive periodic solutions of a neutral functional differential equation d N d t=N(t)[a(t)-β(t)N(t)-b(t)N(t-σ(t))-c(t)N′(t-τ(t))]. 展开更多
关键词 positive periodic solution abstract continuation theorem neutral functional differential equation.
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Delay-dependent Robust Stability of Neutral Systems with Mixed Delays and Nonlinear Perturbations 被引量:15
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作者 ZHANG Wen-An YU Li 《自动化学报》 EI CSCD 北大核心 2007年第8期863-866,共4页
关键词 中性系统 延迟依赖标准 非线性干扰 稳健性 线性矩阵不等式
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Adaptive Stabilization and Trajectory Tracking of Airship with Neutral Buoyancy 被引量:10
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作者 ZHANG Yan QU Wei-Dong +1 位作者 XI Yu-Geng CAI Zi-Li 《自动化学报》 EI CSCD 北大核心 2008年第11期1437-1440,共4页
这份报纸介绍一个适应非线性的控制答案给一架自治飞艇的水平运动。我们定义包括配置错误和速度错误的错误功能的一个新奇家庭。然后,我们建立错误系统。稳定错误系统的适应非线性的控制器被 Lyapunov 直接方法和 Matrosov 定理设计。... 这份报纸介绍一个适应非线性的控制答案给一架自治飞艇的水平运动。我们定义包括配置错误和速度错误的错误功能的一个新奇家庭。然后,我们建立错误系统。稳定错误系统的适应非线性的控制器被 Lyapunov 直接方法和 Matrosov 定理设计。数字研究被介绍说明建议控制器的有效性。 展开更多
关键词 自适应系统 稳定性 轨迹 飞船 浮力
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Neutral electrolyte aluminum air battery with open configuration 被引量:8
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作者 HAN Bin LIANG Guangchuan 《Rare Metals》 SCIE EI CAS CSCD 2006年第z1期360-363,共4页
A kind of new long life aluminum air batteries with open configuration was developed, using aluminum alloy doped with Ga, In, Sn, Bi, Pb and Mn as anode, NaCl solution as electrolyte and air electrode as cathode. The ... A kind of new long life aluminum air batteries with open configuration was developed, using aluminum alloy doped with Ga, In, Sn, Bi, Pb and Mn as anode, NaCl solution as electrolyte and air electrode as cathode. The polarization curves of aluminum electrode and air electrode were tested. And the cell′s performance was tested to calculate the utilization of aluminum electrode and the energy density. It is shown that, in the 3.5% NaCl solution, the cell can discharge at 0.29 A for 140 h with the working voltage keeping over 1.1 V. The utilization ratio of aluminum anode is over 44%, and the life of battery is longer than 2400 h. 展开更多
关键词 aluminum air battery neutral electrolyte open configuration cell performance
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Delay-dependent Stability Criteria for a Class of Uncertain Neutral Systems 被引量:17
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作者 CHEN De-Yin JIN Chao-Yong 《自动化学报》 EI CSCD 北大核心 2008年第8期989-992,共4页
在这份报纸,为经常的时间延期的一个班的延期依赖者稳定性标准的问题有变化时间的结构化的无常的中立系统被调查。新 asymptotic 稳定性标准在线性矩阵不平等形式被导出。二个数字例子被给显示在这份报纸介绍的结果比一些存在结果有效... 在这份报纸,为经常的时间延期的一个班的延期依赖者稳定性标准的问题有变化时间的结构化的无常的中立系统被调查。新 asymptotic 稳定性标准在线性矩阵不平等形式被导出。二个数字例子被给显示在这份报纸介绍的结果比一些存在结果有效、不太保守。 展开更多
关键词 稳定性 自动控制系统 计算机技术 不确定性
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ATTRACTING AND QUASI-INVARIANT SETS OF STOCHASTIC NEUTRAL PARTIAL FUNCTIONAL DIFFERENTIAL EQUATIONS 被引量:4
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作者 黎定仕 徐道义 《Acta Mathematica Scientia》 SCIE CSCD 2013年第2期578-588,共11页
In this article, we investigate a class of stochastic neutral partial functional differ- ential equations. By establishing new integral inequalities, the attracting and quasi-invariant sets of stochastic neutral parti... In this article, we investigate a class of stochastic neutral partial functional differ- ential equations. By establishing new integral inequalities, the attracting and quasi-invariant sets of stochastic neutral partial functional differential equations are obtained. The results in [15, 16] are generalized and improved. 展开更多
关键词 Attracting quasi-invariant neutral STOCHASTIC
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OSCILLATION FOR NONAUTONOMOUS NEUTRAL DYNAMIC DELAY EQUATIONS ON TIME SCALES 被引量:6
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作者 刘爱莲 吴洪武 +1 位作者 朱思铭 Ronald M.Mathsen 《Acta Mathematica Scientia》 SCIE CSCD 2006年第1期99-106,共8页
The article is concerned with oscillation of nonautonomous neutral dynamic delay equations on time scales. Sufficient conditions are established for the existence of bounded positive solutions and for oscillation of a... The article is concerned with oscillation of nonautonomous neutral dynamic delay equations on time scales. Sufficient conditions are established for the existence of bounded positive solutions and for oscillation of all solutions of this equation. Some results extend known results for difference equations when the time scale is the set Z^+ of positive integers and for differential equations when the time scale is the set IR of real numbers. 展开更多
关键词 Time scale Δ-derivative neutral delay equation OSCILLATION
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Neutral Red Retention by Earthworm Coelomocytes: A Biomarker of Cadmium Contamination in Soil 被引量:10
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作者 S. K. GUPTA Cell Biology Section, Industrial Toxicology Research Centre, M. G. Marg, P. B. No. 80, Lucknow 226 001, India 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2000年第2期117-121,共5页
The earthworm Metaphire posthuma were used as a model to assess the toxic potential of cadmium incorporated into the soil by environmental or human activities. The retention period of neutral red in the lysosomes ... The earthworm Metaphire posthuma were used as a model to assess the toxic potential of cadmium incorporated into the soil by environmental or human activities. The retention period of neutral red in the lysosomes of the coelomocytes was used as a biomarker. The viability of harvested coelomocytes by a non_invasive extrusion protocol was 93% with no alteration by the dye during experimentation. The control cells retained dye for 119 and 121 min in normal soil and KCl, respectively, whereas a linear decline in the retention time in the treated earthworm coelomocytes was observed. This illustrated that the presence of cadmium caused damage to the lysosomes of the coelomocytes. 展开更多
关键词 ANIMALS Biological Markers CADMIUM Coloring Agents Digestive System Environmental Monitoring neutral Red Oligochaeta
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Design of the reflection magnet and its shielding effect analysis for the neutral beam injector of EAST 被引量:4
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作者 LIANG Lizhen HU Chundong XIE Yuanlai WEI Jianglong XIE Yahong LI Jun 《Nuclear Science and Techniques》 SCIE CAS CSCD 2011年第2期70-76,共7页
In this paper,a reflection magnet to be installed in the EAST neutral beam injection system is simulated and designed.The field intensity of reflection magnet of 42-cm maximum bending radius is about 1.539×10-1 T... In this paper,a reflection magnet to be installed in the EAST neutral beam injection system is simulated and designed.The field intensity of reflection magnet of 42-cm maximum bending radius is about 1.539×10-1 T for 100 keV deuterium beam.The shielding cage is formed by rods.Using the ANSOFT software,the magnetic shielding effect was estimated at about 3% at the magnet pole region. 展开更多
关键词 中性束注入系统 屏蔽效果 效果分析 设计 反射 磁铁 ANSOFT软件 磁场强度
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A New Criterion of Fault Estimation for Neutral Delay Systems Using Adaptive Observer 被引量:10
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作者 ZHANG Ke JIANG Bin SHUMSKY Alexey 《自动化学报》 EI CSCD 北大核心 2009年第1期85-91,共7页
这份报纸用适应观察员学习中立延期系统的差错评价的问题。一个新奇快适应差错评价(FAFE ) 算法首先基于适应观察员被建议包括快和精确性提高差错评价的表演。同时,一个延期依赖者标准被建立特别为小延期系统减少设计过程的保守主义。... 这份报纸用适应观察员学习中立延期系统的差错评价的问题。一个新奇快适应差错评价(FAFE ) 算法首先基于适应观察员被建议包括快和精确性提高差错评价的表演。同时,一个延期依赖者标准被建立特别为小延期系统减少设计过程的保守主义。然后,全面分析被介绍用线性矩阵不平等(LMI ) 讨论精明的步技术。最后,模拟结果被介绍说明建议算法的效率。 展开更多
关键词 故障评估 自适应观察 中间延误系统 线性矩阵方程
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The Supervisory Control System for the HL-2A Neutral Beam Injector 被引量:5
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作者 李波 李立 +8 位作者 冯鲲 王雪云 杨家兴 黄治辉 康自华 王明伟 张国庆 雷光玖 饶军 《Plasma Science and Technology》 SCIE EI CAS CSCD 2009年第3期374-376,共3页
Supervisory control and protection system of the neutral beam injector (NBI) in the HL-2A tokamak is presented. The system is used for a safe coordination of all the main NBI subsystems. Because the system is based ... Supervisory control and protection system of the neutral beam injector (NBI) in the HL-2A tokamak is presented. The system is used for a safe coordination of all the main NBI subsystems. Because the system is based on computer networks with its transmission medium of optical fiber, its advantages in high operational stability, reliability, security and flexible functional expandability are clearly shown during the NBI commissioning and heating experiment in HL-2A. 展开更多
关键词 control timing sequence INTERLOCK PROTECTION ISOLATION neutral beam injection
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Development of the Convective Boundary Layer Capping with a Thick Neutral Layer in Badanjilin:Observations and Simulations 被引量:8
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作者 HAN Bo LÜShihua AO Yinhuan 《Advances in Atmospheric Sciences》 SCIE CAS CSCD 2012年第1期177-192,共16页
In this study, the development of a convective boundary layer (CBL) in the Badaujilin region was investigated by comparing the observation data of two cases. A deep neutral layer capped a CBL that occurred on 30 Aug... In this study, the development of a convective boundary layer (CBL) in the Badaujilin region was investigated by comparing the observation data of two cases. A deep neutral layer capped a CBL that occurred on 30 August 2009. This case was divided into five sublayers from the surface to higher atmospheric elevations: surface layer, mixed layer, inversion layer, neutral layer, and sub-inversion layer. The development process of the CBL was divided into three stages: S1, S2, and S3. This case was quite different from the development of the three-layer CBL observed on 31 August 2009 because the mixed layer of the five-layer CBL (CBL5) eroded the neutral layer during S2. The specific initial structure of the CBL5 was correlated to the synoptic background of atmosphere during nighttime. The three-stage development process of the CBL5 was confirmed by six simulations using National Center for Atmospheric Research (USA) large-eddy simulation (NCAR-LES), and some of its characteristics are presented in detail. 展开更多
关键词 convective boundary layer neutral layer large-scale circulation large-eddy simulation
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Newcastle disease virus-based MERS-CoV candidate vaccine elicits high-level and lasting neutralizing antibodies in Bactrian camels 被引量:5
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作者 LIU Ren-qiang GE Jin-ying +5 位作者 WANG Jin-ling SHAO Yu ZHANG Hui-lei WANG Jin-liang WEN Zhi-yuan BU Zhi-gao 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2017年第10期2264-2273,共10页
Middle East respiratory syndrome coronavirus (MERS-CoV), a member of the Coronavifidae family, is the causative pathogen for MERS that is characterized by high fever, pneumonia, acute respiratory distress syndrome ... Middle East respiratory syndrome coronavirus (MERS-CoV), a member of the Coronavifidae family, is the causative pathogen for MERS that is characterized by high fever, pneumonia, acute respiratory distress syndrome (ARDS), as well as extrapul- monary manifestations. Currently, there are no approved treatment regimens or vaccines for MERS. Here~ we generated recombinant nonvirulent Newcastle disease virus (NDV) LaSota strain expressing MERS-CoV S protein (designated as rLa- MERS-S), and evaluated its immunogenicity in mice and Bactrian camels. The results revealed that rLa-MERS-S showed similar growth properties to those of LaSota in embryonated chicken eggs, while animal immunization studies showed that rLa-MERS-S induced MERS-CoV neutralizing antibodies in mice and camels. Our findings suggest that recombinant rLa- MERS-S may be a potential MERS-CoV veterinary vaccine candidate for camels and other animals affected by MERS. 展开更多
关键词 Newcastle disease virus MERS-CoV neutralizing antibodies CAMELS
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