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Frequency Effects of Fine Thin Layer

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Journal of Earth Science 1994年第1期13卷 92-96页

作者： zhang Shuangxi(department of Geophysics,{2. University of Geosciences, Wuhan 430074)Yuan Tao zhang Wenxian(Northwest Petroleum Geology Bureau, Ministry of Geology and Mineral Resources, Xinjiang 830011)Xiong Weigang(department of Geophysics,{2. Uni

One of the most important research task in reservoir engineering now is to resolve the fine thin layer. What are the characteristics of the fine thin layer? This paper gives the answer in frequency domain. The frequency feature of fine thin layer set obtained is grating. The frequence effects of rhythmic thin layer, on the other hand, is different from those of graded thin layer; the grating effect of fine layer is affected by several factors, but the thickness and its inner layer number are the most predominant factors over others affecting grating effect.

关键词： fine thin bed set grating effect frequency response.

On the Genesis of the Super-large Baguamiao Gold Deposit in Fengxian County, Shaanxi Province

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Acta Geologica Sinica(English Edition) 1997年第2期71卷 189-203页

作者： Zhong Jianhua and zhang Guowei Exploration department, Petroleum University of{2., Dongying,Shandong department of Geology, Northwest University, Xi’an, Shaanxi Exploration department Petroleum University of China Dongying Shandong department of Geology Northwest University Xi'an Shaanxi [?]Zhong Jianhua Born in April 1957 native of Nanchang City Jiangxi Province graduated from the Huainan College of Mines in 1982 granted a Master's degree from the University of Mining Industry of china in 1987 and then a DS degree from the Institute of Geotectonics Chinese Academy of Sciences in 1994 and doing post-doctoral research work in the Northwest University in 1996. He is now serving as an associate professor in the Basin Resources Institute under the Exploration department Petroleum University of China (Dongying) and is engaged mainly in researches on the structural geology of mineral deposits

The Baguamiao gold deposit in Fengxian County, Shaanxi Province, is a recentlyexplored super-large gold ore deposit. A comprehensive and deep-going study has revealedthat it is a polygenetic deposit: early-stage mineralization due to shearing, middle-stagemineralization due to hydrothermal alteration, and late-stage mineralization due toweathering, leaching and concentration at shallow depths. Shearing played a dominant role inthe formation of gold orebodies.

关键词： gold deposit mineralization due to shearing mineralization due to hydrothermal alteration Baguamiao Fengxian County Shaanxi Province

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石化公司LIMS系统升级扩展应用研究

分析仪器 2024年第3期 100-104页

作者：许峰蒋敏王剑南张利新中国石油独山子石化分公司质量检验中心独山子833699

为了让LIMS的运用更加简洁、高效,从而提高产品质量控制。本研究将石化公司原有5套旧的LIMS系统,升级改造成了一套全新LIMS系统。不仅保留了旧系统的所有在用功能,还开发了环保报告集成优化处理模块、物资管理、KPI管理等新功能,同时在... 详细信息

为了让LIMS的运用更加简洁、高效,从而提高产品质量控制。本研究将石化公司原有5套旧的LIMS系统,升级改造成了一套全新LIMS系统。不仅保留了旧系统的所有在用功能,还开发了环保报告集成优化处理模块、物资管理、KPI管理等新功能,同时在仪器数据自动上传上有了更广泛的应用。另外,在WEB页上也采用的是微服务架构模式,它是现在流行的基于Java语言开发的一种软件架构。LIMS系统的升级扩展应用,不仅提高了工作效率,也让石化企业的质量管理有了很大提升。

关键词： LIMS 升级质量管理提升

Effects of somatostatin analogues on human sphincter of Oddi pressure

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Hepatobiliary & Pancreatic Diseases International 2005年第2期4卷 302-305页

作者： Shuo-Dong Wu, Zhen-Hai zhang, Jing Kong, Yan-Jun Li, Jun-Zhe Jin, Wei Wang, Dong-Yan Li and Min-Fei Wang Shenyang, china No.2.{2. of General Surgery, Second Affilia- ted Hospital, china Medical University, Shenyang 110004, china department of General Surgery Second Affiliated Hospital China Medical University Shenyang 110004 China. wushuodong@***

BACKGROUND: Somatostatin, a neuropeptide and hor- mone , exists in the biliary tract of several species. The effects of somatostatin and its analogues on the sphincter of Oddi motility have been controversial. The aim of this study was to observe the action of stilamin and sandostatin on the sphincter of Oddi via choledochofiberscope manometry. METHODS: Twenty patients who had had'T' duct after cholecystectomy and choledochotomy were divided into 2.groups randomly: stilamin and sandostatin. They were subjected to manometry via a choledochofiberscope through the'T' duct tract. The following data recorded in- cluded duodenal pressure (DP), sphincter of Oddi basal pressure (SOBP), sphincter of Oddi contractive amplitude (SOCA), frequency of the sphincter of Oddi (SOF), dura- tion of the sphincter of Oddi, and the common bile duct pressure (CBDP). RESULTS: After intravenous administration of stilamin at a dose of 2.0 μg/h, the mean SOCA increased from 89.18 (2..50) to 12..57(54.2.) mmHg (P 2.18(42.81) mmHg (P2.(2.45) to 7.46(1.52. n/min, it was not significantly influenced. After intravenous administration of sandostatin at a dose of 100 μg, the mean CBDP increased obviously. CONCLUSIONS: Intravenous administration of stilamin at a dose of 2.0 μg/h stimulates the motility of the sphincter of Oddi whereas the injection of stilamin at a dose of 500 μg/h inhibits its motility. Intravenous injection of sandosta- tin of 100 μg has no effect on the sphincter of Oddi.

关键词： biliary manometry via choledochofiberoscopy sphincter of Oddi somatostatin stilamin sandostatin

Influence　Diagnostics　for　the　Cross－Validated　Smoothing　Parameter　in　Kernel　Smoothing

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Systems Science and Systems Engineering 1996年第4期6卷 385-390页

作者： JIANG Jiancheng(department of Probability and Statistics, Beijing University, 100871)zhang Xibin(School of Management, Tianjin University, 300072.WU Xizhi(department of mathematics, Nankai University, Tianjin 300071)

In this paper, we present influence analysis that can identify observations: which locally infulence the choice of smoothing parameter by cross-validation method when fitting a kelnel regnssion model. The diagnostic m... 详细信息

关键词： Cross-validation Kernel smoothing Bandwidth Local influence

GRAIN BOUNDARY FEATURE AND CREEP BEHAVIOR OF Fe-15Cr-2.Ni ALLOYS

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Acta Metallurgica Sinica(English Letters) 1989年第5期2卷 368-373页

作者： zhang Junshan CHEN Weixing CAO Zhiben Dalian University of Technology,Dalian,china Associate Professor,{2. of Materials Engineering,Dalian University of Technology,Dalian,china

Creep behavior of Fe-15Cr-2.Ni alloys with different grain boundary features has been in- vestigated at 850 and 950℃ and in stress range of 14.7～78.5 *** single phase alloy exhibits typical recovery creep characteristics,and for the alloy in which M_(2.)C_6 carbides densely precipitate at grain boundaries,the creep rate dramatically decreases and creep behav- ior is also significantly different from the single phase *** the carbides precipitate at grain boundaries,the dislocation density are higher and the size of subgrains near grain boundaries are smaller than those of single phase *** creep mechanisms for two grain boundary features have been discussed.

关键词： grain boundary feature recovery creep dislocation annihilation

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船舶破舱横摇数学模型及理论分析

系统仿真学报 2008年第22期20卷 6298-6301页

作者：赵为平郭晨金鸿章大连海事大学自动化与电气工程学院大连116026 沈阳航空工业学院自控系沈阳110034 哈尔滨工程大学自动化学院哈尔滨150001

船舶在航行过程中有可能发生船体破损以至船体进水的情况。因此,应该考虑船舶的抗沉性和应对措施,使船舶在一定程度损伤后仍具有足够的航行能力。在对船舶对称破舱的情况进行分析的基础上,采用槽型水舱理论建立了船舶破舱后横摇的数学模... 详细信息

船舶在航行过程中有可能发生船体破损以至船体进水的情况。因此,应该考虑船舶的抗沉性和应对措施,使船舶在一定程度损伤后仍具有足够的航行能力。在对船舶对称破舱的情况进行分析的基础上,采用槽型水舱理论建立了船舶破舱后横摇的数学模型,并对不同破舱水位和流动阻尼情况下的船舶横摇特性作了仿真和分析。最后根据船舶破舱数学模型,讨论并给出了船舶破舱情况下系统的绝对稳定条件。

关键词：船舶破舱横摇数学模型仿真

Melatonin abates liver ischemia/reperfusion injury by improving the balance between nitric oxide and endothelin

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Hepatobiliary & Pancreatic Diseases International 2006年第4期5卷 574-579页

作者： Wen-Hai zhang, Jian-Yi Li and Yong Zhou department of 5th General Surgery, Second Affiliated Hospital ,{2. Medical University, Shenyang 110004,{2. department of 5th General Surgery Second Affiliated Hospital (Shengjing Hospital) China Medical University Shenyang 110004 China. surgeonzwh@***

BACKGROUND: Melatonin exerts complex physiological and pharmacological effects on multiple systems and organs. We hypothesized that melatonin might abate ischemia/ reperfusion (I/R) injury in the liver by inhibiting excessive oxidative stress and keeping nitric oxide (NO) from being scavenged by free radicals. The aim of the present study was to investigate whether melatonin protects the liver from I/R injury and, if so, by what underlying mechanism. METHODS: Under anesthesia, Wistar rats were intraperi- toneally injected with 2. mg/kg melatonin (dissolved in physiological saline containing 4% ethanol, Mel group), 4% alcohol (Alc group), or physiological saline (NS group). The artery, portal vein and bile duct of the left lobe of the liver were clamped for 60 minutes and then released. At different time points after I/R, the rats were sacrificed and blood samples were collected to measure the levels of serum alanine aminotransferase (ALT), lactic dehydrogenase (LDH), and NO. Hepatic tissue samples were collected for measuring endothelin expression by immunohistochemical staining and for routine morphological and histological examination. RESULTS: The levels of both ALT and LDH in the Mel group were significantly reduced for up to 2. hours after I/R compared with the Alc and NS groups (P2.hours after I/R relative to the NS group (P<0.05). The NO levels were also elevated at 0.5 and 6 hours after I/R in the Alc group (P<0.05). The immunohistochemical staining of hepatic tissue showedthat endothelin-positive cells were significantly fewer in the Mel group than in the Alc and NS groups at 6 hours after I/R (P<0.01). The necrosis of hepatocytes and the destruction of hepatic cords in the Alc and NS groups were greatly improved in Mel-treated rats, which is in concert with our functional data. CONCLUSIONS: Pretreatment with melatonin increased NO bioavailability and decreased endothelin expre

关键词： melatonin liver ischemia/reperfusion nitric oxide endothelin

GRK2.inhibits Flt-1^(+)macrophage infiltration and its proangiogenic properties in rheumatoid arthritis

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Acta Pharmaceutica Sinica B 2024年第1期14卷 241-255页

作者： Xuezhi Yang Yingjie Zhao Qi Wei Xuemin Zhu Luping Wang Wankang zhang Xiaoyi Liu Jiajie Kuai Fengling Wang Wei Wei Institute of Clinical Pharmacology Anhui Medical UniversityKey Laboratory of Anti-Inflammatory and Immune MedicineAnhui Collaborative Innovation Center of Anti-Inflammatory and Immune MedicineMinistry of EducationHefei 230032China department of Clinical Pharmacology the Second Affiliated Hospital of Anhui Medical UniversityHefei 230601China

Rheumatoid arthritis(RA)is an autoimmune disease with a complex ***-derived macrophages(MDMs)infiltration are associated with RA *** have reported the deletion of G-protein-coupled receptor kinase 2.GRK2.reprograms macrophages toward an anti-inflammatory phenotype by recovering G-protein-coupled receptor ***,as more GRK2.interacting proteins were discovered,the GRK2.interactome mechanisms in RA have been ***,in the collagen-induced arthritis mouse model,we performed genetic GRK2.deletion using GRK2.(f/f)Lyz2.Cre^(+/−)*** inflammation and M1 polarization were improved in GRK2.(f/f)Lyz2.Cre^(+/−)*** experiments with RNA-seq and dual-luciferase reporter assays identified peroxisome proliferator-activated receptorγ(PPARγ)as a new GRK2.interacting *** further confirmed that fms-related tyrosine kinase 1(Flt-1),which promoted macrophage migration to induce angiogenesis,was inhibited by GRK2.PPARγ***,excess GRK2.membrane recruitment in CIA MDMs reduced the activation of PPARγligand-binding domain and enhanced Flt-1 ***,the treatment of mice with GRK2.activity inhibitor resulted in significantly diminished CIA pathology,Flt-1^(+)macrophages induced-synovial inflammation,and ***,we anticipate to facilitate the elucidation of previously unappreciated details of GRK2.specific intracellular *** GRK2.activity is a viable strategy to inhibit MDMs infiltration,affording a distinct way to control joint inflammation and angiogenesis of RA.

关键词： GRK2 Monocyte-derived macrophages Rheumatoid arthritis PPARg Flt-1