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Computerized lung sound analysis following clinical improvement of pulmonary edema due to congestive heart failure exacerbations

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Chinese Medical Journal 2010年第9期123卷 1127-1132页

作者： wang zhen XIONG Ying-xia Department of Emergency Medicine Beijing Shijitan HospitalBeijing 100038China

Background Although acute congestive heart failure （CHF） patients typically present with abnormal auscultatory findings on lung examination, lung sounds are not normally subjected to rigorous analysis. The goals of this study were to use a computerized analytic acoustic tool to evaluate lung sound patterns in CHF patients during acute exacerbation and after clinical improvement and to compare CHF profiles with those of normal *** Lung sounds throughout the respiratory cycle was captured using a computerized acoustic-based imaging technique. Thirty-two consecutive CHF patients were imaged at the time of presentation to the emergency department and after clinical improvement. Digital images were created, geographical area of the images and lung sound patterns were quantitatively *** The geographical areas of the vibration energy image of acute CHF patients without and with radiographically evident pulmonary edema were （67.9±4.7） and （60.3±3.5） kilo-pixels, respectively （P 〈0.05）. In CHF patients without and with radiographically evident pulmonary edema （REPE）, after clinical improvement the geographical area of vibration energy image of lung sound increased to （74.5±4.4） and （73.9±3.9） kilo-pixels （P 〈0.05）, respectively. Vibration energy decreased in CHF patients with REPE following clinical improvement by an average of （85±19）% （P 〈0.01）. Conclusions With clinical improvement of acute CHF exacerbations, there was more homogenous distribution of lung vibration energy, as demonstrated by the increased geographical area of the vibration energy image. Lung sound analysis may be useful to track in acute CHF exacerbations.

关键词： lung sounds vibration energy of lung sound exacerbation congestive heart failure

Carbon nanostructures produced through ion irradiation

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Nuclear Science and Techniques 2003年第2期14卷 107-114页

作者： YU Li-Ping, wang zhen-xia, ZHU Zhi-Yuan, ZHANG Hu-Yong, HAN Jia-Guang, ZHANG Wei, SUN Li-Tao,wang Ting-Tai, MA Yu-Gang (Shanghai Institute of Nuclear Research, the Chinese Academy of Sciences, Shanghai 201800) Shanghai Institute of Nuclear Research the Chinese Academy of Sciences 上海 201800

Several nanostructures we produced by ion irradiation have been reviewed in this paper. By using ions to irradiate two ultrahigh molecular weight polyethylene targets respectively, it was found that small fullerenes C20 and C26 were grown, adding two members to the fullerene family. Meanwhile, crystalline diamonds also have been produced by Ar+ ions irradiation of graphite. In the experiment of double ions Ni+ and Ar+ irradiation, nanoscale argon bubbles formed. On the other side, when multi-wall carbon nanotubes were irradiated by C+, many MWCNTs evolved to amorphous carbon nanowires and amorphous carbon nanotubes. And there are possible welding in the crossed nanotubes.

关键词：碳纳米结构离子辐射聚乙烯

Stark-potential evaporative cooling of polar molecules in a novel optical-access opened electrostatic trap

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Chinese Physics B 2015年第11期24卷 196-205页

作者：孙慧王振霞王琴李兴佳刘建平印建平 State Key Laboratory of Precision Spectroscopy East China Normal University

We propose a novel optical-access opened electrostatic trap to study the Stark-potential evaporative cooling of polar molecules by using two charged disk electrodes with a central hole of radius r0 = 1.5 mm, and derive a set of new analytical equations to calculate the spatial distributions of the electrostatic field in the above charged-disk layout. Afterwards, we calculate the electric-field distributions of our electrostatic trap and the Stark potential for cold ND3 molecules, and analyze the dependences of both the electric field and the Stark potential on the geometric parameters of our charged-disk scheme, and find an optimal condition to form a desirable trap with the same trap depth in the x, y, and z directions. Also, we propose a desirable scheme to realize an efficient loading of cold polar molecules in the weak-field-seeking states, and investigate the dependences of the loading efficiency on both the initial forward velocity of the incident molecular beam and the loading time by Monte Carlo simulations. Our study shows that the maximal loading efficiency of our trap scheme can reach about 95%, and the corresponding temperature of the trapped cold molecules is about 28.8 inK. Finally, we study the Stark-potential evaporative cooling for cold polar molecules in our trap by the Monte Carlo method, and find that our simulated evaporative cooling results are consistent with our developed analytical model based on trapping-potential evaporative cooling.

关键词： evaporative cooling electrostatic trap Monte Carlo simulations

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价格改革的行为经济学分析

教学与研究 2008年第6期 72-78页

作者：王振霞中国社会科学院财贸系北京100102

用行为经济学的方法探讨价格改革是价格理论研究由实物视角向人文关怀视角的转变,是纠正政府政策失效的根本途径,本文提出价格政策如果不考虑特殊微观制度环境下对生产者、消费者以及地方政府等微观主体具体行为反应的影响是不可能有效... 详细信息

用行为经济学的方法探讨价格改革是价格理论研究由实物视角向人文关怀视角的转变,是纠正政府政策失效的根本途径,本文提出价格政策如果不考虑特殊微观制度环境下对生产者、消费者以及地方政府等微观主体具体行为反应的影响是不可能有效的,所以,行为经济分析方法是新阶段价格改革的趋势和方向,应在今后的研究中予以重视。

关键词：价格改革行为经济学模型分析

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晚期罗马帝国的集权体制和吏治腐败

齐鲁学刊 2012年第3期 60-64页

作者：王振霞曲阜师范大学历史文化学院山东曲阜273165

在晚期罗马帝国,全部权力集中到皇帝和以皇帝为首的等级森严的官僚机构中。由于官僚体制的权力非常大,不受国家基本成员所实行的任何监督,从而变得腐化和庸劣无能,表现为皇帝和官僚之间的相互欺诈,行政官员的日益腐败,买官和卖官盛行,... 详细信息

在晚期罗马帝国,全部权力集中到皇帝和以皇帝为首的等级森严的官僚机构中。由于官僚体制的权力非常大,不受国家基本成员所实行的任何监督,从而变得腐化和庸劣无能,表现为皇帝和官僚之间的相互欺诈,行政官员的日益腐败,买官和卖官盛行,以及经济腐败、军队腐败和司法腐败等。腐败使晚期帝国政府频临解体的边缘,国家的命运陷入岌岌可危的处境。

关键词：晚期罗马帝国腐败衰亡

The electromagnetic Casimir effect of spherical cavity

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Nuclear Science and Techniques 2003年第2期14卷 104-106页

作者： HAN Jia-Guang, YU Li-Ping, wang zhen-xia, ZHU Zhi-Yuan (Shanghai Institute of Nuclear Research, the Chinese Academy of Sciences, Shanghai 201800) Shanghai Institute of Nuclear Research the Chinese Academy of Sciences 上海 201800

The Casimir effect results from the zero-point energy of vacuum. A spherical cavity can be divided into three regions, and we make an analysis of every region and then give a formal solution of Casimir energy. The zeta-function regularization is also used to dispel the divergence of the summation. At the end, we can see the Casimir effect of a single sphere is included in our results.

关键词：球形穴电磁Casimir效应零点能 zeta函数

Silica－supported Polysiloxane with Selenacrown Ether Moieties and Its Platinum Complex

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Chemical Research in Chinese Universities 1994年第2期10卷 126-130页

作者： LU Xue-ran ZHANG Li-feng wang zhen-xia LIU Xiu-fang and CHEN Yuan-yin(Department of Chemistry , Wuhan University, Wuhan, 430072 )

he present paper covers syntheses of the first functionalized selenacrownether, allyloxymethyl-1-selena-4, 7 , 10, 13, 16-pentaoxacyclooctadecane, and its im-mobilized product, silica-supported polypropyloxymethyl- 1-selena-18-C- 6 *** was found that the immobilized selenacrown ether could coordinate with platinumsalt and the platinum complex was a new type of polymeric hydrosilylation *** polymer catalyst exhibited a high catalytic activity for the hydrosilylation ofolefins with triethoxysilane in the temperature range of 60 to 110℃. The turnovernumber could amount to more than 100,000 in one run.

关键词： Crown ether Selenacrown ether Platinum Hydrosilylation catalyst,Polysiloxane

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古罗马的人口和人口政策浅论

齐鲁学刊 2016年第5期 54-59页

作者：王振霞曲阜师范大学历史文化学院山东曲阜273165

古罗马社会发展的每一阶段都有其独特的人口存在状况和人口政策。总起来看,古罗马的人口和人口政策大致有四个方面的特点:(1)在婚育观上,罗马人实行早婚,提出了优生的主张,并认为多子多福;(2)在人口政策上,罗马人鼓励生育和控制人口数量... 详细信息

古罗马社会发展的每一阶段都有其独特的人口存在状况和人口政策。总起来看,古罗马的人口和人口政策大致有四个方面的特点:(1)在婚育观上,罗马人实行早婚,提出了优生的主张,并认为多子多福;(2)在人口政策上,罗马人鼓励生育和控制人口数量;(3)公民人口数量历经王政时代、共和时代和帝国时期的发展;(4)人口的年龄构成表现出人均寿命偏低和未成年人比重较大的特点,家庭的人口规模则变小。

关键词：古罗马人口政策婚育观年龄构成

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多壁碳纳米管在循环相变过程中结构变化初探

物理学报 2005年第9期54卷 4263-4268页

作者：王震遐王森胡建刚俞国军中国科学院上海应用物理研究所上海201800

对由离子束辐照多壁碳纳米管(MWCNTs)产生的无定形碳纳米线(ACNWs)进行了高温退火(2400℃)处理,通过透射电子显微镜(TEM)观察发现,ACNWs体部转变成与原来MWCNTs相似的管状石墨结构,而其封端区域的石墨晶体结构形态却与原来的MWCNTs完全... 详细信息

对由离子束辐照多壁碳纳米管(MWCNTs)产生的无定形碳纳米线(ACNWs)进行了高温退火(2400℃)处理,通过透射电子显微镜(TEM)观察发现,ACNWs体部转变成与原来MWCNTs相似的管状石墨结构,而其封端区域的石墨晶体结构形态却与原来的MWCNTs完全不同,且变化多端.基于实验结果,对其相变过程机理提出了一个概念性的模型.

关键词：无定形碳纳米线高温退火相变透射电子显微镜多壁碳纳米管相变过程结构变化透射电子显微镜循环离子束辐照无定形碳石墨结构