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相对波阻抗数据体约束下的多井测井参数反演方法及应用

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石油地球物理勘探 2004年第3期39卷 291-299页

作者：王西文大港油田博士后工作站中国石油勘探开发科学研究院西北分院

本文从理论上分析了基于模型的波阻抗反演主要存在的问题 :第一 ,初始波阻抗模型的建立基于经验而导致多解性 ;第二 ,合成地震记录与井旁地震记录拟合程度的不均匀性造成模型化现象。为此文中提出了一套基于相对波阻抗数据体约束的多井... 详细信息

本文从理论上分析了基于模型的波阻抗反演主要存在的问题 :第一 ,初始波阻抗模型的建立基于经验而导致多解性 ;第二 ,合成地震记录与井旁地震记录拟合程度的不均匀性造成模型化现象。为此文中提出了一套基于相对波阻抗数据体约束的多井测井参数反演方法 ,其中相对波阻抗数据体采用道积分算法来获取。文中还解释了道积分算法在频率域的物理意义——在有效频带对地震记录做 - 90°相移。通过实例 ,分析了在相对波阻抗数据体约束下的多井测井参数反演方法 ,从而证明了该方法的实用性和可操作性。

关键词：测井参数反演方法波阻抗反演技术地震记录地震波地震道地震勘探

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Relation of Sodium and Magnesium Efflux in Heart

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Relation of Sodium and Magnesium Efflux in Heart

International Conference on Computer Graphics,Simulation and Modeling(ICGSM’2012);International Conference on Production,Materials and Automobile Engineering(ICPMAE2012);International Conference on Advances in Transformers and Electronics Engineering(ICATEE’2012);International Conference on Chemical,Environmental Science and Engineering(ICEEBS’2012);International Conference on Business Intelligence and Humanities(ICBEBS’2012);International Conference on Biological,Biomedical and Pha.maceutical Sciences(ICCEPS’2012)

作者： Mun-Young Lee Sei-Jin Lee Jin-Sha.g Kim Hyung-sub Kang Sha.g-Jin Kim Department of Occupational Therapy College of Health Science Honam University Korea Basic Science Institute Jeonju Center College of Veterinary Medicine Chonbuk National University

Processes involved in regulating intracellular Mg2+ concentration （[Mg 2+ ]i） include permeability of the plasma membrane, Mg2+ transporters in the membrane, intracellular buffering by proteins and transport across organelles. Ultimately, steady-state [Mg2+]i is controlled by the first two mecha.isms, although [Mg2+]i can be altered by buffering or transport by intracellular proteins and organelles, respectively. However, the pathway of Mg2+ efflux remains unclear in guinea-pig heart. Our objective was to investigate the existence of Na+-dependent Mg2+ efflux in perfused heart of guinea-pig. The rate of total magnesium efflux （[Mg]e） in high Mg 2+-loaded hearts was faster tha. tha. in low Mg2+-loaded those. The rate of [Mg]e reversibly decreased with the low extracellular Na+ concentrations （[Na+]o） in a concentration-dependent manner, blocked by the pretreatment of imipramine. Therefore, the Mg2+ efflux could be coupled with the Na+ influx in guinea-pig heart, which might involve activation of Na+ /Mg2+ excha.ge.

关键词： Sodium Magnesium Perfused Heart

1,2,3,4,6-penta-O-galloyl-β-D-glucose up-regulates heme oxygenase-1 expression by stimulating Nrf2 nuclear translocation in an extracellular signal-regulated kinase-dependent manner in HepG2 cells

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World Journal of Gastroenterology 2006年第2期12卷 214-221页

作者： Hyun-Ock Pae Gi-Su Oh Sun-On Jeong Gil-Saeng Jeong Bok-Soo Lee Byung-Min Choi Ho-sub Lee Hun-Taeg Chung Medicinal Resources Research Institute Wonkwang UniversityIksan-ShiChunbug570-749Republic of Korea Department of Microbiology and Immunology Wonkwang University School of MedicineWonkwang UniversityIksan-ShiChunbug570-749Republic of Korea

AIM: To examine the potency of 1,2,3,4,6-penta-O-galloyl-β-D-glucose (PGG) as a hepatic heme oxygen-ase-1(HO-1) inducer and its regulation in HepG2 cells. METHODS: Expression of HO-1 and NF-E2-related factor 2 (Nrf2) and activation of mitogen-activated protein (MAP) kinases were analyzed by Western blot, immuno-fluorescence assay, and flow cytometry. Transfections of HO-1 gene, small interfering RNAs for HO-1 and Nrf2, and dominant-negative gene for MAP/extracellular signal-regulated kinase (ERK) were carried out to dissect the signaling pathways leading to HO-1 expression in HepG 2 cells. RESULTS: PGG up-regulated HO-1 expression and this expression conferred cytoprotection against oxidative injury induced by t-butyl hydroperoxide. Moreover, PGG induced Nrf2 nuclear translocation, which was found to be an upstream step of PGG-induced HO-1 expression, and ERK activation, of which pathway was involved in PGG-induced Nrf2 nuclear translocation, HO-1 expression and cytoprotection. CONCLUSION: PGG up-regulates HO-1 expression by stimulating Nrf2 nuclear translocation in an ERK-depen-dent manner, and HO-1 expression by PGG may serve as one of the important mecha.isms for its hepatoprotective effects.

关键词： 1,2,3,4,6-penta-O-galloyl-β-D-glucose Heme oxygenase-1 Oxidative stress Hepatoprotection

Thermal Beha.ior and Desorption of Robust Porous Coordination Polymer

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Thermal Behavior and Desorption of Robust Porous Coordinatio...

第三届全国化学工程与生物化工年会

作者： Xing-qiang Lüa Cheng-yong sub Bei-sheng Kangb long Xua Maa Ji-rong Songa College of Chemical Engineering Northwest UniversityXi’an 710069ShaanxiChina School of Chemistry and Chemical Engineering Sun Yat-Sen UniversityGuangzhou510275China

＜正＞Porous coordination polymer[Cu2（NTA）（4,4’-bpy）2]ClO4?4H2O was synthesized and cha.acterized by XRD in combination with PXRD, which results in the formation of the tetranuclear building block, and leads to the 3D topologically structural framework assisted by O-H???O interactions from the guest molecules and the host 2D brick-wall sketch. TGA analysis showed the guest molecules were desorbed thermally, and the hosting structure could be kept till 200 ?C.

关键词： porous coordination polymer XRD O-H???O interactions thermal desorption

The Study on Sulfur and Nickel Distribution Beha.ior of Nickel between Fe-Ni alloy and MgO-FeO-SiO2 Slag System

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The Study on Sulfur and Nickel Distribution Behavior of Nick...

Ninth International Conference on Molten Slags,Fluxes and Salts(MOLTEN12)

作者： Ki Deok Kim Hyung sub Eom Eun Jin Jung Wan Wook Huh Dong Joon Min Department of Materials Science and Engineering Yonsei UniversitySeoul 120-749Korea RIST(Research Institute of Industrial Science & Technology) Gangwon Province210-340Korea

The dissolution beha.ior of nickel in the MgO-SiO 2-FeO slag system was investigated by using the thermodynamic equilibrium *** distribution ratio between molten MgO-SiO 2-FeO slag and molten Fe-Ni alloy at 1773 K and 1873 K was measured to understand the dissolution mecha.ism of nickel into the *** dependence of oxygen partial pressure and basicity on the distribution of nickel was *** distribution beha.ior between slag and Fe-Ni alloy increased with higher oxygen partial pressure showing a dependence of 1/*** basic slag systems near the olivine saturated composition,the nickel distribution ratio increased with higher basicity showing a slope of 1 and for acidic slag systems near the cristobalite saturated composition,the nickel distribution ratio decreased with higher basicity showing a slope *** dissolution beha.ior of nickel in the MgO-SiO 2-FeO slag system showed two independent mecha.isms similar to tha. found in the CaO-SiO 2-CaF 2 *** distribution ratio of sulfur between the（CaO）-MgO-FeO-SiO 2 slag and Fe-Ni alloy at high temperature was also investigated to understand the refining ability of Ferronickel smelting slag by chemical equilibrating *** experimental results indicated tha. sulfide capacity in terms of the slag composition of MgO-FeO-SiO 2 slag and temperature was increased with increasing FeO and CaO contents as well as *** FeO is considered to work as relatively basic component in this slag system tha. ha. low *** the effect of components of slag on sulfide capacity,CaO and FeO is considered to be more effective basic oxide tha. MgO in MgO-FeO-SiO 2 slag system while the effect of FeO on sulfide capacity was gradually retarded with increasing *** effect of CaO on MgO solubility of slag and the relationship between sulfide and Ni oxide capacities was also discussed.

关键词： nickel distribution ratio basicity amphoteric beha.ior sulfide capacity

Self-reported Symptoms of Asthma and Exercise-induced Asthma in Korean National Team Athletes

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Self-reported Symptoms of Asthma and Exercise-induced Asthma...

The 6th Asian Conference on Sport Science

作者： Saejong Park Young-Soo Kim Jung-Taek Shin sub Sunoo You-Sook Cho Yeon-Mok Oh Korea Institute of Sport Science Kyung Hee University University of Ulsan/Asan Medical Center

The prevalence of exercise-induced asthma（EIA）increases markedly in elite *** ha. been extensively studied in Caucasian athletes,but little report ha. been published in Asian *** purpose of this study was to investigate the prevalence of EIA symptoms,asthma diagnosis,and asthma medication in Korean national team athletes.A validated questionnaire was used to determine the prevalence of EIA symptoms,asthma diagnosis,and asthma *** study population was composed of the year 2008 Korean national team athletes who were training in the Taeneung national training *** participants were athletes（n=285）from 16 different summer *** range of each EIA symptom positive responders was 30%to 66%.Cough and excess mucus were most often experienced while wheezing and difficulty of breathing were relatively not quite often *** of EIA symptom was self-reported by about 18%of all the subjects,and all5 EIA symptoms were reported by 9.5%.Asthma diagnosis by a physician was reported 10.9%of all the subjects and use of asthma medication was only6.7%of all the *** rhinitis diagnosis by a physician was 22.5%of all the subjects and use of allergy medication was 11.6%of the *** symptoms were analyzed by specific cha.acteristics of sports such as environment of sports participated（*** *** sports）,team *** *** of these sport cha.acteristics seems to be affecting EIA symptoms in Korean national *** prevalence of asthma diagnosis was similar to other ***,the prevalence of EIA symptoms was relatively high,which might involve undiagnosed *** investigations are needed to EIA diagnosis in Korean athletes.

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铁路分局电力网变电率的经济运行区间

铁道学报 1996年第2期18卷 92-95页

作者：刘金声伊图里河铁路分局

根据对分局电力网变损曲线的解析，提出了分局电力网变电率经济运行区间概念，并给出了这个区间。使判定分局电力网变电率的经济波动范围具有数学依据，以此指导变压器经济运行和降损节电工作。

关键词：经济运行区间变电率电力网铁路分局

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下一代网络(NGN)的实现

中国无线电 2007年第1期 12-18页

作者： Sha.-sub Lee 宋笑亭

给出了对下一代网络(NGN)标准的制订历程、定义、要求和未来趋势的一些看法。着重从较高的角度介绍了实现固定与移动融合、远程广播和涉及21世纪通信各个方面的完整的下一代网络标准制订的战略方向。

关键词：下一代网络标准制订通信 NGN

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OPTICALLY PUMPED FAR-INFRARED LASER MINIATURIZATION AND RAMAN PROCESSES INTERACTION

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OPTICALLY PUMPED FAR-INFRARED LASER MINIATURIZATION AND RAMA...

1996年第四届毫米波和远红外科学与技术国际会议

作者： Zheng Xingshi Luo Xizha.g and Lin Yikun (sub-mm Wave Laser Laboratory Zhongsha. University Guangzhou PRC.)

＜正＞As a practical source in submillimeter wave range,optically pumped far-infrared lasers ha.e advantages of spectral purity and operation facility,but the feature of bulky and cumbersome obstructs the lasers from ...

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