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期刊论文 57

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关键词

Z箍缩 2

3D支架平台 1

ATSC 1

CA 1

CA-QFD方法 1

DTV 1

DVB-C 1

Dubins飞行器;坐标下降法;Dubins旅行商问题 1

FLTD型脉冲加速器 1

ICF 1

IFOC 1

ITU-T 1

MPEG 1

Z干扰信道;非正则信号;和速率;帕累托边界;协方差;伪协方差 1

Z源逆变器 1

中国聚变工程实验堆 1

产品优化设计 1

人为地形变化 1

人群计数;知识蒸馏;终身学习 1

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Optimization of fuel supply map during starting process of electronic controlled diesel engine

LIANG Jinguang, YU Xiumin, GAO Yue, WANG Yunkai, YU Hongyang, Gong Baoli

《能源前沿(英文)》 2008年 第2卷 第4期   页码 410-415 doi: 10.1007/s11708-008-0080-8

摘要: Tests were conducted to study influence of fuel supply map during the starting process of an electronic controlled diesel engine using an electronic controlled diesel engine which was made up of a CA498Z diesel engine, a VP37 electronic controlled distributor injection pump management system and a VS100 calibration system. The calibration process of starting fuel supply map was educed under the principle of low HC emission and rapid starting velocity. The calibration methods of starting fuel supply map were obtained.

关键词: supply     management     CA498Z     process     controlled distributor    

NETO2 promotes melanoma progression via activation of the Ca/CaMKII signaling pathway

《医学前沿(英文)》 2023年 第17卷 第2期   页码 263-274 doi: 10.1007/s11684-022-0935-0

摘要: Melanoma is the most aggressive cutaneous tumor. Neuropilin and tolloid-like 2 (NETO2) is closely related to tumorigenesis. However, the functional significance of NETO2 in melanoma progression remains unclear. Herein, we found that NETO2 expression was augmented in melanoma clinical tissues and associated with poor prognosis in melanoma patients. Disrupting NETO2 expression markedly inhibited melanoma proliferation, malignant growth, migration, and invasion by downregulating the levels of calcium ions (Ca2+) and the expression of key genes involved in the calcium signaling pathway. By contrast, NETO2 overexpression had the opposite effects. Importantly, pharmacological inhibition of CaMKII/CREB activity with the CaMKII inhibitor KN93 suppressed NETO2-induced proliferation and melanoma metastasis. Overall, this study uncovered the crucial role of NETO2-mediated regulation in melanoma progression, indicating that targeting NETO2 may effectively improve melanoma treatment.

关键词: melanoma     neuropilin and tolloid-like 2     Ca2+/CaMKII signaling pathway    

Z源逆变器在异步电动机中的应用

朱红,祝龙记,夏若飞

《中国工程科学》 2014年 第16卷 第3期   页码 86-91

摘要: 本文采用IFOC技术来控制异步电机的速度大小,并使用Z源逆变器,即在逆变器主电路前加上一对阻抗(LC)网络,通过控制直通占空比,可以实现升/降压功能、提高异步电机的效率。

关键词: IFOC     异步电机     Z源逆变器    

Berberine alleviates myocardial diastolic dysfunction by modulating Drp1-mediated mitochondrial fission and Ca

《医学前沿(英文)》 doi: 10.1007/s11684-023-0983-0

摘要: Berberine alleviates myocardial diastolic dysfunction by modulating Drp1-mediated mitochondrial fission and Ca homeostasis in a murine model of HFpEF

关键词: mitochondrial fission Ca     Berberine alleviates myocardial     murine model HFpEF    

Effect of K and Ca on catalytic activity of Mn-CeO

Boxiong SHEN, Lidan DENG, Jianhong CHEN

《环境科学与工程前沿(英文)》 2013年 第7卷 第4期   页码 512-517 doi: 10.1007/s11783-013-0519-y

摘要: Mn-CeO /Ti-pillared clay (PILC) is an attractive catalyst for selective catalytic reduction of NO at low temperature because of its low cost. The poisoning of K and Ca on the catalyst of Mn-CeO /Ti-PILC is an important problem because K and Ca are always in presence in flue gas. To investigate the effect of K and Ca on the physicochemical characters of the catalysts, the techniques of NH -temperature programmed desorption (TPD), H -temperature programmed reduction (TPR), and X-ray photoelectron spectroscopy (XPS) were used to analyze the fresh and deactivated catalysts of Mn-CeO /Ti-PILC. (Ca)Mn-CeO /Ti-PILC and (K)Mn-CeO /Ti-PILC are denoted for the dopes of the catalyst of Mn-CeO /Ti-PILC with Ca and K, respectively. The activities of Mn-CeO /Ti-PILC, (Ca)Mn-CeO /Ti-PILC and (K)Mn-CeO /Ti-PILC for NH -selective catalytic reduction (SCR) reaction at low temperature were investigated. The results showed that with the dopes of K and Ca on the catalysts, the SCR activities of the catalysts decreased greatly, and K exhibited more poisoning effect than Ca. With the dopes of K and Ca, the acidity, the redox property and chemisorbed oxygen on the surfaces of the catalysts were decreased, which resulted in a decreasing in SCR activity.

关键词: Mn-CeOx/Ti-pillared clay (PILC)     low-temperature selective catalytic reduction (SCR)     K and Ca poisoning effect    

Exergy analysis of R1234ze(Z) as high temperature heat pump working fluid with multi-stage compression

WANG, R.Z. WANG

《能源前沿(英文)》 2017年 第11卷 第4期   页码 493-502 doi: 10.1007/s11708-017-0510-6

摘要: In this paper, the simulation approach and exergy analysis of multi-stage compression high temperature heat pump (HTHP) systems with R1234ze(Z) working fluid are conducted. Both the single-stage and multi-stage compression cycles are analyzed to compare the system performance with 120°C pressurized hot water supply based upon waste heat recovery. The exergy destruction ratios of each component for different stage compression systems are compared. The results show that the exergy loss ratios of the compressor are bigger than that of the evaporator and the condenser for the single-stage compression system. The multi-stage compression system has better energy and exergy efficiencies with the increase of compression stage number. Compared with the single-stage compression system, the coefficient of performance (COP) improvements of the two-stage and three-stage compression system are 9.1% and 14.6%, respectively. When the waste heat source temperature is 60°C, the exergy efficiencies increase about 6.9% and 11.8% for the two-stage and three-stage compression system respectively.

关键词: multi-stage compression     high temperature heat pump     heat recovery     exergy destruction     R1234ze(Z) working fluid    

Protective roles of heat stress on the neurons in hippocampal CA1 region of mice

WANG Chunxu, WANG Hanxing

《医学前沿(英文)》 2007年 第1卷 第4期   页码 418-422 doi: 10.1007/s11684-007-0082-7

摘要: The effects of heat stress on the neurons in hippocampal CA1 region of brain ischemia/reperfusion were explored. The mice were pretreated with heat stress followed by ischemia/reperfusion by clipping bilateral cervical commo n arteries for 7 min. Mice were divided randomly into four groups as follows: (1) normal control group; (2) heat stress pretreated subsequent to ischemia/reperfusion group (HS/IR); (3) ischemia/reperfusion group (IR); and (4) heat stress group (HS). Animals in the last three groups were subdivided into three subgroups: 1 d, 4 d, 14 d respectively. The Morris water maze was used to test the ability of learning and memorizing, Nissl staining was used to count the average number of survived neurons in hippocampal CA1 region, and immunohistochemistry combined with image analysis system to detect the changes of Microtubule associated protein 2 (MAP-2) expression. The results showed that mice in IR group exhibited increased escape latency when compared with that of normal, HS and HS/IR groups (<0.01), and the mice in IR group adopted an inefficient search strategy, major in circling and restricted searching manners. Nissl staining results showed a significant reduction in the number of pyramidal neurons in hippocampal CA1 regions in HS/IR and IR groups, with a decrease in IR group (<0.01). Compared with normal group, the expression of MAP-2 in hippocampal CA1 region obviously decreased in IR group (<0.05). The present results indicate that heat stress pretreatment can improve the spatial learning and memorizing function through protection to hippocampal neurons.

基于Z数的TODIM与TOPSIS方法 None

Renato A. KROHLING, André G. C. PACHECO, Guilherme A. dos SANTOS

《信息与电子工程前沿(英文)》 2019年 第20卷 第2期   页码 283-291 doi: 10.1631/FITEE.1700434

摘要: 提出一种针对多标准决策问题处理Z数的方法。使用模糊数A和B的有序对Z=(A, B)定义Z数,其中A是兴趣变量的语言值,B是A的概率测度语言值。将Z数转化为模糊数,Z-TODIM和Z-TOPSIS分别是模糊TODIM和模糊TOPSIS的直接扩展。将提出的方法应用于两个案例并与使用精确数的标准方法比较,结果证明其可行。

关键词: 多标准决策;TODIM;TOPSIS;模糊数;Z   

Z-箍缩——有前景的聚变能源新途径

彭先觉,华欣生

《中国工程科学》 2008年 第10卷 第1期   页码 47-53

摘要:

简要介绍了快Z-箍缩的基本概念;综述了快Z-箍缩等离子体研究及其作为高能密度物理与惯性约束聚变(ICF),尤其作为低成本聚变能源研究的最新进展;探讨了快Z-箍缩驱动ICF作为聚变能源可能遇到的技术问题及应用前景。

关键词: Z-箍缩内爆     高能密度物理     惯性约束聚变     聚变能源    

Laboratory study on high-temperature adsorption of HCl by dry-injection of Ca(OH)

Junjun TAN,Guohua YANG,Jingqiao MAO,Huichao DAI

《环境科学与工程前沿(英文)》 2014年 第8卷 第6期   页码 863-870 doi: 10.1007/s11783-013-0618-9

摘要: Combustion-generated hydrogen chloride (HCl) is considered to be a very hazardous acid gaseous pollutant. This paper presents a laboratory study on the dry adsorption of HCl. The experiments were conducted in a dual-layer granular bed filter, at gas temperatures of 500°C–700°C and (Ca)/ (Cl)molar ratios of 1.0–5.0 using the silver nitrate titration method by dry adsorbent powders Ca(OH) . Mainly, the adsorption efficiency of HCl and utilization efficiency of Calcium were studied, by varying relevant factors including (Ca)/ (Cl), temperature, feeding method, water vapor and CO . With a relatively higher HCl concentration of 1000 ppm, the experimental results revealed that 600°C may be the optimum temperature for HCl adsorption when optimum (Ca)/ (Cl) was 2.5 in our tests. The results also demonstrated that the feeding at a constant pressure was more effective, and the HCl adsorption efficiency could rapidly reach over 90% with (Ca)/ (Cl) = 2.5 at 600°C. Furthermore, the HCl adsorption efficiency was found to be slightly promoted by water vapor, while could be impeded by CO , and the utilization efficiency of calcium could be up to 74.4% without CO , while was only 36.8% with CO when (Ca)/ (Cl) was 2.5 at 600°C.

关键词: acid gas HCl     Ca(OH)2     dry adsorption     high temperature     dual-layer granular bed filter    

Z干扰信道下非正则信号的最佳设计策略 Article

Dan LI, Shan WANG, Fang-lin GU

《信息与电子工程前沿(英文)》 2017年 第18卷 第11期   页码 1900-1912 doi: 10.1631/FITEE.1700030

摘要: 本文提出一种用于在干扰被视为加性高斯噪声的假设下在Z干扰信道(z-interference channel, Z-IC)上实现非正则高斯信号(IGS)的Pareto边界(可实现速率区域的边界)。

关键词: Z干扰信道;非正则信号;和速率;帕累托边界;协方差;伪协方差    

面向客户需求的产品优化设计方法研究

李汝鹏,魏巍,周峰,邹成

《中国工程科学》 2018年 第20卷 第2期   页码 33-41 doi: 10.15302/J-SSCAE-2018.02.006

摘要: 本文提出了一种快速响应客户需求的产品优化设计方法,通过基于模糊相似理论的需求信息模糊聚类方法,对具有模糊性和多样性的原始客户需求信息进行精简分类处理,以获取客户需求集合;然后构建了一种综合联合分析法(CA)和质量功能展开(QFD)的全新CA-QFD需求转化方法,从客户需求到产品设计属性进行精确转化,并通过对实例产品的优化设计,实现快速响应客户需求;最后,通过锻压机主工作液压缸的优化设计实例,验证了本文方法的可行性和适用性

关键词: 快速响应客户需求     模糊聚类     需求转化     CA-QFD方法     产品优化设计    

Fire hazard in transportation infrastructure: Review, assessment, and mitigation strategies

Z. NASER

《结构与土木工程前沿(英文)》 2021年 第15卷 第1期   页码 46-60 doi: 10.1007/s11709-020-0676-6

摘要: This paper reviews the fire problem in critical transportation infrastructures such as bridges and tunnels. The magnitude of the fire problem is illustrated, and the recent increase in fire problems in bridges and tunnels is highlighted. Recent research undertaken to address fire problems in transportation structures is reviewed, as well as critical factors governing the performance of those structures. Furthermore, key strategies recommended for mitigating fire hazards in bridges and tunnels are presented, and their applicability to practical situations is demonstrated through a practical case study. Furthermore, research needs and emerging trends for enhancing the “state-of-the-art” in this area are discussed.

关键词: fire hazard     bridges     tunnels     fire resistance     mitigation strategies     transportation infrastructure    

硅微z轴谐振陀螺仪负电刚度效应分析及实验验证

夏敦柱,周百令,王寿荣

《中国工程科学》 2007年 第9卷 第8期   页码 66-68

摘要:

介绍了在开环工作状态下硅微z轴谐振陀螺仪由于加工工艺缺陷所导致的误差机理。通过对硅微z轴陀螺仪敏感模态的反馈力与谐振频率的关系分析,间接得出了在敏感方向上电负刚度与力矩器所施电压的内在联系,并在实验上进一步验证电刚度效应。这将为下一步闭环控制方案的设计奠定重要基础。

关键词: 硅微z轴陀螺仪     负电刚度     力矩反馈器     微机电系统    

直接驱动Z箍缩的FLTD型脉冲功率源的发展

孙凤举,邱爱慈,曾正中,曾江涛,丛培天

《中国工程科学》 2009年 第11卷 第11期   页码 56-63

摘要:

介绍了快直线型变压器(FLTD)脉冲源的技术特点;概述了美国圣地亚国家实验室与俄罗斯强流电子学研究所合作研制的FLTD-Z模块的新进展,基于FLTD拟重复频率运行的针对聚变能源(IFE)应用的原理性样机Z-POP装置,以及下一代惯性约束核聚变(ICF)和IFE用的指标为6 MV,60 MA/90 MA和100 ns FLTD型直接驱动脉冲源的概念设想

关键词: Z箍缩     直接驱动     FLTD型脉冲加速器     高功率脉冲加速器     概念设计    

标题 作者 时间 类型 操作

Optimization of fuel supply map during starting process of electronic controlled diesel engine

LIANG Jinguang, YU Xiumin, GAO Yue, WANG Yunkai, YU Hongyang, Gong Baoli

期刊论文

NETO2 promotes melanoma progression via activation of the Ca/CaMKII signaling pathway

期刊论文

Z源逆变器在异步电动机中的应用

朱红,祝龙记,夏若飞

期刊论文

Berberine alleviates myocardial diastolic dysfunction by modulating Drp1-mediated mitochondrial fission and Ca

期刊论文

Effect of K and Ca on catalytic activity of Mn-CeO

Boxiong SHEN, Lidan DENG, Jianhong CHEN

期刊论文

Exergy analysis of R1234ze(Z) as high temperature heat pump working fluid with multi-stage compression

WANG, R.Z. WANG

期刊论文

Protective roles of heat stress on the neurons in hippocampal CA1 region of mice

WANG Chunxu, WANG Hanxing

期刊论文

基于Z数的TODIM与TOPSIS方法

Renato A. KROHLING, André G. C. PACHECO, Guilherme A. dos SANTOS

期刊论文

Z-箍缩——有前景的聚变能源新途径

彭先觉,华欣生

期刊论文

Laboratory study on high-temperature adsorption of HCl by dry-injection of Ca(OH)

Junjun TAN,Guohua YANG,Jingqiao MAO,Huichao DAI

期刊论文

Z干扰信道下非正则信号的最佳设计策略

Dan LI, Shan WANG, Fang-lin GU

期刊论文

面向客户需求的产品优化设计方法研究

李汝鹏,魏巍,周峰,邹成

期刊论文

Fire hazard in transportation infrastructure: Review, assessment, and mitigation strategies

Z. NASER

期刊论文

硅微z轴谐振陀螺仪负电刚度效应分析及实验验证

夏敦柱,周百令,王寿荣

期刊论文

直接驱动Z箍缩的FLTD型脉冲功率源的发展

孙凤举,邱爱慈,曾正中,曾江涛,丛培天

期刊论文