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Prediction and programming of microemulsion phase behavior simulation

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Petroleum Science 2022年第3期19卷 1401-1410页

作者： dong-qi wang Dai-Yin Yin Jun-Da wang Ya-Zhou Zhou Cheng-Li Zhang Department of Petroleum Engineering Northeast Petroleum UniversityDaqing163318China Key Laboratory of Enhanced Oil Recovery (Northeast Petroleum University)Ministry of EducationChina PetroChina Refining&Chemicals Company Beijing100007China

In the process of microemulsion flooding,microemulsion phase state may be affected by the adsorption of core and the distribution of oil and water,and the upper phase,the middle phase or the lower phase microemulsion will *** description of microemulsion phase state and quantitative discrimination of equilibrium phase composition are of great theoretical value and research significance for the design of microemulsion flooding system and improving the recovery efficiency of ***,in this paper,microemulsion phase model is deeply *** at the difficulty of solving the existing Hand model and the unknown parameters of the improved HLD-NAC model,we introduce the binodal curve range parameter D and the asymmetric migration degree parameter B,and establish a new phase behavior description method of the binodal curve,the two-phase plait point lines and the III-phase node *** the phase discrimination programming of microemulsion was carried out,and the change laws of phase number,phase type and mass fraction of equilibrium phases of any microemulsion system under different salinity were *** results show that the simulation results of microemulsions accord with the salinity scanning law,and can accurately identify the complex microemulsion phase states.

关键词： Microemulsion Phase model Conditions for phase discrimination Programming Salinity scanning

A new polyacetylene glycoside from the rhizomes of Atractylodes lancea

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Chinese Chemical Letters 2010年第7期21卷 850-852页

作者： Ying Ji Xu Feng Chao Cheng Xiao Yun Fa dong qi Zhi wang Ming wang You Yi Zhao Jiangsu Center for Research & Development of Medicinal Plants Jiangsu Institute of BotanyChinese Academy of Sciences Nanjing Botanical GardenMem.Sun Yat-SenNanjing 210014China

A new polyacetylene glycoside,（1,3Z,11E）-tridecatriene-7,9-diyne-5-hydroxyl-6-O-β-D-glucopyranoside,was isolated from the rhizomes of Atractylodes lancea（Thunb.） *** structure was elucidated on the basis of spect... 详细信息

关键词： Atractylodes lancea Polyacetylene (1 3Z 11E)-Tridecatriene-7 9-diyne-5-hydroxyl-6-O-β-D-glucopyranoside

Optimization of Pass Schedule in Hot Strip Rolling

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Journal of Iron and Steel Research International 2012年第8期19卷 25-28页

作者： qi Xiang-dong, wang Tao, XIAO Hong (National Engineering Research Center for Equipment and Technology of Cold Strip Rolling, Yanshan University, qinhuangdao 066004, Hebei, China) National Engineering Research Center for Equipment and Technology of Cold Strip Rolling Yanshan University Qinhuangdao 066004 Hebei China

Rolling schedule not only determines the rolling process to be going smoothly, but also affects the shape accuracy and structure properties of finished strip. In order to gain good strip crown and flatness, the calculation formulas of the most suitable rolling force and bending force are deduced. By taking relatively equal load of rolling power and good shape as objective functions, the optimization mathematical models of finish rolling schedule are established. By contrast, the rolling schedules after optimization can improve the rolling mill working status and ensure the strip crown and flatness to be good. At the same time, the setting value of bending force is improved and this leaves more space for on-line shape control.

关键词： optimization rolling schedule rolling force bending force shape

无线传感器网络中基于刚性的移动锚节点路径规划

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电子与信息学报 2011年第10期33卷 2353-2357页

作者：汪晗齐望东王坤解放军理工大学计算机系南京210007

在移动锚节点辅助定位中,锚节点通常沿着预设轨迹扫描或采用随机方式移动,当节点分布不均匀、待定位区域形状复杂时,存在锚节点冗余移动、位置冗余广播及定位性能难以确保等问题。该文提出了利用网络拓扑信息进行移动路径规划的新思路,... 详细信息

在移动锚节点辅助定位中,锚节点通常沿着预设轨迹扫描或采用随机方式移动,当节点分布不均匀、待定位区域形状复杂时,存在锚节点冗余移动、位置冗余广播及定位性能难以确保等问题。该文提出了利用网络拓扑信息进行移动路径规划的新思路,首先利用刚性理论将网络划分为多个唯一可定位的单元,之后寻找一条遍历各单元的最短路径作为锚节点的移动轨迹,锚节点沿着该轨迹移动、依次定位各单元。大规模仿真结果表明,该策略可以有效避免锚节点的冗余移动和位置广播,灵巧适应各种布设情形,与经典的扫描式路径相比,大大降低了路径长度和位置数目。

关键词：无线传感器网络网络定位移动锚节点刚性理论路径规划

Novel fused-silica charge detection tile for particle detectors

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Radiation Detection Technology and Methods 2019年第2期3卷 22-26页

作者： Wu-Rong Cen Xiao-Meng Wu Li-qiang Cao qi-dong wang Liang-Jian Wen University of Chinese Academy of Sciences Beijing 100049China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Institute of Microelectronics Chinese Academy of SciencesBeijing 100029China State Key Laboratory of Particle Detection and Electronics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China

Purpose Develop a novel charge-detecting tile for future large-scale liquid xenon TPC for searching for neutrinoless doublebeta *** Use advanced microelectronic technologies to fabricate small metal pads on a fused-silica *** pads are chained into orthogonal strips,and the strips are isolated at the cross *** size of the pads defines the pitch between parallel strips and can be flexibly tuned according to any optimized dimension from future Monte Carlo *** tile also has good potential to suppress the radioactivity and control electronics ***,its modular design allows to easily cover a large *** The design and performance have been demonstrated by a prototype tile,particularly by comprehensive tests in liquid *** A new design of charge detection tile and the fabrication technologies have been developed,which would be useful for future noble liquid detectors.

关键词： Time projection chamber(TPC) Charge collection Double-beta decay Microelectronic processing

实现位置及时间绑定的密钥分发——防御传感器网络节点复制攻击的新方法

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通信学报 2010年第4期31卷 16-25页

作者：伏飞齐望东解放军理工大学计算机系江苏南京210007

提出了一种新的防御思路:通过使复制节点无法与邻居节点建立成对密钥的方式,来达到消除复制节点攻击威胁的目的,由此设计了一种基于多项式的成对密钥分发方法LTB(location and time binding)。LTB把每个节点的密钥信息与其部署位置和时... 详细信息

提出了一种新的防御思路:通过使复制节点无法与邻居节点建立成对密钥的方式,来达到消除复制节点攻击威胁的目的,由此设计了一种基于多项式的成对密钥分发方法LTB(location and time binding)。LTB把每个节点的密钥信息与其部署位置和时间信息绑定起来,使每个节点只能在其部署位置与邻居节点建立成对密钥。由于复制节点的部署位置不同于原捕获节点,因此LTB能够有效阻止其与邻居节点建立成对密钥。LTB相比现有各种周期性复制节点检测机制的优势是它彻底消除了复制节点攻击隐患而且协议开销更低,通信开销从O(pn3/2)下降到O(n),其中,p是检测周期数,n是网络节点个数。

关键词：无线传感器网络节点复制攻击密钥分发

Early changes in apparent diffusion coefficient as an indicator of response to sorafenib in hepatocellular carcinoma

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2014年第8期15卷 713-719页

作者： Yi-lei ZHAO qing-qu GUO Gen-ren YANG qi-dong wang Department of Radiology the First Affiliated Hospital School of Medicine Zhejiang University Department of Surgery the Second Affiliated Hospital School of Medicine Zhejiang University

Objective： The relationship between apparent diffusion coefficient （ADC） and chemotherapy has been established. However, whether ADC could be considered as a measure for monitoring response to sorafenib in hepatocellular carcinoma （HCC） has not been demonstrated. This study was to investigate the ADC changes of ad- vanced HCC under sorafenib treatment. Methods： Athymic mice with HepG2 xenografts were allocated to two groups： control and sorafenib （40 mg/kg, bid）. T2 and diffusion images were acquired at each time point （0, 10, 14, and 18 d post-therapy）. Tumor volume and changes in ADC were calculated. Results： Tumor volumes on Days 10, 14, and 18 after treatment showed significant decreases in the sorafenib-treated group compared with the control. Pretreatment ADC values were not significantly different between the control and treated groups. A slow increase in ADC in the peripheral zone of tumors appeared in the treated group, which was significantly higher compared with the control group on Days 10, 14, and 18. In the central part of tumors on Day 10 after treatment, an increase in ADC appeared in the treated and control groups, the ADC of the control group being significantly lower compared with the treated tumors From Day 10 to Day 14, the ADC map showed a progressive decrease in the central region of tumors in the treated and control groups. However, this change is more significant in the treated groups. Conclusions： Early changes in mean ADC correlated with sorafenib treatment in HCC, which are promising indicators for predicting sorafenib response in this carcinoma.

关键词： Hepatocellular carcinoma Sorafenib Apparent diffusion coefficient Magnetic resonance imaging (MRI)

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一种能量有效的传感器监测网络成簇协议

软件学报 2008年第9期19卷 2432-2441页

作者：沈洋齐望东戴浩解放军理工大学计算机工程系江苏南京210007 中国电子设备系统工程公司北京100039

提出了一种分布式能量有效的传感器监测网络成簇协议EECTS(energy-efficient clustering protocol for target surveillance).在该协议中,节点根据邻居节点的分布情况以及自己的剩余能量来竞争簇首.为了降低簇首的能量消耗,簇首间形成... 详细信息

提出了一种分布式能量有效的传感器监测网络成簇协议EECTS(energy-efficient clustering protocol for target surveillance).在该协议中,节点根据邻居节点的分布情况以及自己的剩余能量来竞争簇首.为了降低簇首的能量消耗,簇首间形成一个以基站为根的最小生成树,将监测到的数据通过多跳方式直接发送到生成树的上游节点.由于监测网络的首要任务是能够对移动目标进行不间断的监测,此协议还提出了一种簇内调度方法EECTS-1,可监测到网络中的大部分区域,并在此基础上提出了改进方法EECTS-2.这两种方法在目标进入网络时都能取得较高的持续监测度.随着节点密度的提高,EECTS协议在保证监测性能的前提下,使得传感器监测网络的寿命相应于节点数量呈线性增长.仿真结果表明,在监测性能相同的情况下,运行EECTS-1协议的网络寿命与HEED协议相同,比DEEG协议的网络寿命延长了约35%。EECTS-2协议比EECTS-1和HEED协议的网络寿命延长了约70%～80%.EECTS成簇协议可应用于军事目标监测等领域,工作时间长,监测结果具有很高的可靠性.

关键词：传感器监测网络簇最小生成树持续监测度覆盖

MODIFIED CLASSIC RISK FACTORS FOR CORONARY ARTERY DISEASE IN CHINESE HAN POPULATION

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Chinese Medical Sciences Journal 2007年第4期22卷 216-223页

作者： Han-bin Cui Sheng-huang wang dong-qi wang Chang-cong Cui Xin-yi Chen Xiao-min Chen Zheng Zhang Hong-kao Zhang Feng Bai Joseph B Muhlestein Department of Cardiology Shaanxi Provincial People＇s Hospital Xi＇an Jiaotong University Xi＇an 710068 Department of Cardiology Zhejiang Provincial Ningbo City Hospital Ningbo 315012 Department of Cardiology First Hospital of Xi＇an Jiaotong University Xi＇an 710061 Department of Cardiology First Hospital of Lanzhou Medical College Lanzhou 730000 Deoartment of Cardiology Hubei Provincial Shiyan City Hospital Shiyan 442000 Cardiology Center of LDS Hospital Salt Lake City 84132 USA

Objective To investigate the levels of cardiovascular disease risk factors and their relations to clinical phenotype associated with coronary artery disease(CAD).Methods The subjects were recruited from five independent cardiovascular *** angiography was employed to define the CAD with stenosis in each major vessel ≥70% and control with stenosis 0.05).The prevalence of low HDL-C(150 g/L) were 27.2% and 41.4%,*** serum levels of HDL-C and apolipoprotein A1 were significantly higher in female subjects than in male(P<0.001).Lower HDL-C functioned as an independent risk factor for CAD only in men(RR=2.8,95%CI:1.5-4.2,P<0.001),yet increased non-HDL cholesterol combined with diabetes mellitus and obesity seemed to play a key role in the development ofCAD in *** in risk association with CAD was found for hypertension and TC/HDL ratio in male and female subjects,while family history had no relationship with the presence of *** It is remarkable that emphasis of intervention in future should be given on the prevalent low serum HDL-C and its strong risk correlation wit

关键词： classic risk factors coronary artery disease high density lipoprotein cholesterol Chinese Han population