检索结果-南通市图书馆

Control of neotectonic movement on hydrocarbon accumulation in the Kuqa Foreland Basin,west China

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Petroleum Science 2010年第1期7卷 49-58页

作者： Jiang Zhenxue Li Lianxia Song Yan Tian Fenghua zhao Mengjun Wang Haijiang zhao zhenxing State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum Beijing 102249 China Basin and Reservoir Research Center China University of Petroleum Beijing 102249 China Exploration and Development Research Institute PetroChina Beijing 100083 China Department of Exploration ＆ Development PetroChina CBM Limited Company Beijing 100013 China Exploration Department Tarim Oilfield Company PetroChina Kuerle Xinjiang 841000 China No.8 Oil Production Plant Changqing Oilfield Company PetroChina Xi＇an Shaanxi 710018 China

Neotectonic movement refers to the tectonic movement that has happened since the Cenozoic, which is the latest movement. It has the most important influence on the basins in west China, especially on the hydrocarbon accumulation in the western foreland basins. We determined the time of neotectonic movement in the Kuqa Foreland Basin, which began from the Neogene, and analyzed the patterns of movement, which were continuous and fast subsidence in the vertical direction and intense lateral compression. The structure styles are that the faulting is weakened and the folding is strengthened gradually from north to south. We studied the control of neotectonic movement on the hydrocarbon accumulation process and model in the Kuqa Foreland Basin with basin simulation technique. The largest subsidence rate of the Kuqa Foreland Basin reached 1,200 m/Ma during the neotectonic movement, leading to rapid maturing of source rock within 5 Ma and a large quantity of hydrocarbon being generated and expelled. The thick neotectonic strata can form high quality reservoirs with the proved gas and oil reserves accounting for 5% and 27% of the total reserves, respectively. 86% of the structural traps were formed in the neotectonic movement period. The faults formed during the neotectonic movement serve as important migration pathways and they exist in the region where the hydrocarbon reservoirs are distributed. Abnormally high pressure caused by the intense lateral compression, thick neotectonic strata deposition and rapid hydrocarbon generation provide driving force for hydrocarbon migration. The accumulation elements match each other well over a short period, leading to many large gas fields formed later in the Kuqa Foreland Basin.

关键词： Kuqa Foreland Basin neotectonic movement accumulation element accumulation process accumulation model

Processability and Application of Metallocene Linear Low Density Polyethylene

在线全文

学校读者我要写书评

暂无评论

Chemical Research in Chinese Universities 2001年第Z1期17卷 61-页

作者： zhao zhenxing Research Institute of Lanzhou Petrochemical Company PetroChina

1. The structure and feature ofm-LLDPE Due to having a kind of active site in metallocene catalyst, the rate of polymerization and insertion of comonomer are very uniform. Compared with conventional LLDPE, the structure of m-LLDPE has such features: (1) a narrow molecular weight distribution, about 2.0-2.5. The conventional LLDPE, however, has a wide molecular weight distribution, about 4.0-8.0, (2) the distribution of comonomer between different m-LLDPE molecular chain is very uniform, (3) the distribution of comonomer intermolecular-chain is very uniform.

关键词： Density Polyethylene molecular weight distribution metallocene catalyst active site

The Anatomical Research on the Mental Foramen Related to the Mental Nerve Block

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Yangtze Medicine 2021年第1期5卷 54-60页

作者： Lanqian Xie zhenxing zhao Liang Huang Chao Qin Wenjuan Wang Cheng Xu Department of Nephrology Wuhan No. 1 Hospital Wuhan China Department of Pain Medicine Jingzhou First People’s Hospital The First Affiliated Hospital of Yangtze University Jingzhou China

Objective: The aim of this study was to observe and investigate the location of mental foramen, providing scientific and reasonable anatomic basic for clinical mental nerve block. Methods: The shape, orientations, relationship with teeth and number of accessory mental foramina in 50 (100 side) adult mental foramina were observed. The long and short diameters of the mental foramen and the distance between the mental foramen and the peripheral anatomical markers were measured by a vernier caliper, and statistical analysis of the data was performed to obtain the final results. Results: The probability of mental foramen being elliptical in shape accounted for 27%, circular for 73%;10% of the mental foramen openings are outward and 90% are outward and upward;The mental foramina were located under the first premolars in 20%, under the second premolars in 75%, and 5% situated in the bottom of the first molars. The incidence of accessory mental foramina was 1%;the long diameter of the mental foramen was (2.42 ± 0.71) mm, and the short diameter of the mental foramen was (2.15 ± 0.14) mm;the vertical distance from the mental foramen center to the alveolar crest and the lower margin of the mandible were (14.09 ± 3.23) mm and (14.56 ± 1.74) mm;the distance between the midpoints of the vertical line to the center of the mental foramen was (1.26 ± 0.97) mm;the horizontal distance from the center of the mental foramen to the anterior median line was (23.57 ± 1.82) mm. Conclusion: The point of mental nerve block was selected below and behind the second premolars, above the midline of the mandible. The distance from the anterior median line was 2.5 cm, and the mental foramen was explored forward and downward after the insertion.

关键词： Mental Nerve Block Mental Foramen

氢气、外给电子体及聚合温度对iPP微观结构的影响

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

合成树脂及塑料 2015年第1期32卷 40-43页

作者：赵振兴中国石油天然气股份有限公司兰州石化分公司乙烯厂甘肃省兰州市730060

用工业非均相Ziegler-Natta催化剂通过实验室制备和工业生产获得等规聚丙烯(i PP),利用高温凝胶渗透色谱仪、差示扫描量热仪等对i PP进行分析表征。在聚合温度分别为60,70℃条件下,研究了H2、外给电子体环己基-甲基-二甲氧基硅烷(CHMMS)... 详细信息

用工业非均相Ziegler-Natta催化剂通过实验室制备和工业生产获得等规聚丙烯(i PP),利用高温凝胶渗透色谱仪、差示扫描量热仪等对i PP进行分析表征。在聚合温度分别为60,70℃条件下,研究了H2、外给电子体环己基-甲基-二甲氧基硅烷(CHMMS)对i PP相对分子质量及其分布、立构规整性及结晶性能等的影响。结果表明:H2,CHMMS对i PP微观结构的影响与聚合温度有很大关系;在不加CHMMS、聚合温度为60℃时,加入H2使i PP全同立构五单元组序列结构含量从60.16%增至77.45%;H2和CHMMS通过影响丙烯分子的"头-头"或"头-尾"结合方式对i PP的微观立体缺陷分布有调整作用。

关键词：等规聚丙烯非均相齐格勒-纳塔催化剂外给电子体立构规整性

在线全文

学校读者我要写书评

暂无评论

祝融号着陆区地质背景和潜在探测目标研究

中国科学：物理学、力学、天文学 2022年第3期52卷 78-89页

作者：张朝琳刘洋吴兴刘佳赵振兴邹永廖中国科学院国家空间科学中心空间天气学国家重点实验室北京100190 中国科学院大学北京100049 中国科学院比较行星学卓越创新中心合肥230026

在行星探测任务中,地图可以提供全球性和区域性的基础地质地貌单元信息,其蕴含的地质背景信息是巡视器选取科学探测目标的重要参考依据.本文以祝融号火星车着陆点正南15 km处(109.922°E, 24.821°N)为中心,绘制了4周约25 km范围(109.90... 详细信息

在行星探测任务中,地图可以提供全球性和区域性的基础地质地貌单元信息,其蕴含的地质背景信息是巡视器选取科学探测目标的重要参考依据.本文以祝融号火星车着陆点正南15 km处(109.922°E, 24.821°N)为中心,绘制了4周约25 km范围(109.907°E–109.966°E, 24.732°N–25.241°N) 1:50000着陆区形貌分布图,进一步划分地貌亚类并描述其特征,分析地貌的科学价值.通过研究获得了祝融号着陆区形貌上的三个主要认识:(1)总体地势低平且起伏小,出露的地层单元较为单一;(2)较为显著的面状地貌有风成地貌、凹锥、撞击坑、台地和脊状平原,其中风成地貌分布广泛,凹锥分布呈现出一定的聚集特征;(3)线状及(或)条带状单元较为丰富且为分散型分布,如槽沟、脊、皱脊、叶状边缘等.本研究还总结了着陆区具有较高科学价值地貌的研究进展,可为祝融号选取探测目标和为后续的数据解译工作提供参考.

关键词：祝融号乌托邦平原地质背景探测目标

A multiplex reverse transcription PCR assay for simultaneous detection of five main RNA viruses and in nine curcubit plants

在线全文

学校读者我要写书评

暂无评论

A multiplex reverse transcription PCR assay for simultaneous...

应对岸上故障的海上风电多端柔直系统协调控制策略

中国植物病理学会2021年学术年会

作者： zhao zhenxing XIANG Jun TIAN Qian zhao Wenjun ZHANG Yongjiang Institute of Plant Inspection and Quarantine Chinese Academy of Inspection and Quarantine

Virus and bacteria diseases occur in cucurbit fruits and vegetables all around the world,causing serious yield *** rapid detection of these pathogens and provide a basis for disease control,a multiplex reverse transcription polymerase chain reaction system was established for simultaneous detection of Tobacco mosaic virus（TMV）,Zucchini yellow mosaic virus（ZYMV）,Cucumber mosaic virus（CMV）,and in 9 different cucurbit plants,with 5 pairs of specific primers being designed based on the coat protein（CP） genes of these *** elongation factor-1α（EF-1α） from tomato was added to the multiplex RT-PCR reaction system toprevent false *** concentration of the primers,annealing temperature,annealing time,extension time and amplification cycles were *** fragments of 159 bp（ToCV）,262 bp（PVY）,362 bp（EF-1α）,430 bp（TMV）,500 bp（TSWV）,600 bp（CMV） and 705 bp（PVX） were amplified by this multiplex RT-PCR system,and their origin was confirmed by DNA *** method will have a wide application in virus detection of field samples.

关键词： plant virus detection RNA viruses curcubit plants PCR

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

中国电力 2024年第8期57卷 85-95页

作者：赵平贾浩森高亨孝李振兴三峡大学电气与新能源学院湖北宜昌443002 梯级水电站运行与控制湖北省重点实验室(三峡大学) 湖北宜昌443002

针对海上风电多端柔直系统岸上交流电网故障时的盈余功率问题,提出一种采用能量控制的多个海上换流站与风电机组的协调控制策略。在故障期间,部分海上换流站先启动能量控制,根据直流电压的变化抬升能量参考值,吸收直流系统中的盈余功率... 详细信息

针对海上风电多端柔直系统岸上交流电网故障时的盈余功率问题,提出一种采用能量控制的多个海上换流站与风电机组的协调控制策略。在故障期间,部分海上换流站先启动能量控制,根据直流电压的变化抬升能量参考值,吸收直流系统中的盈余功率。剩余海上换流站对直流电压进行预测,当直流电压预测值超过限值后,剩余海上换流站启动能量控制吸收盈余功率。海上换流站在吸收盈余功率的同时对风电机组采用降压控制,根据换流站储能的增加情况降低风机侧交流电压参考值。风电机组网侧换流器根据交流电压的变化调节d轴电流参考值,减少输送到多端柔直系统的有功功率,避免多端柔直系统的直流电压越限。最后,在PSCAD/EMTDC中对不同类型的故障进行仿真,验证了所提协调控制策略的有效性。

关键词：多端柔直系统交流故障盈余功率能量控制降压控制协调控制

同方期刊数据库

在线全文

学校读者我要写书评

暂无评论

离子风飞机推进电极阵列的推力影响因素

中国电机工程学报 2022年第8期42卷 3098-3106页

作者：欧阳芳相陈赦许冬冬杨发友徐千鸣赵振兴湖南大学电气与信息工程学院湖南省长沙市410082 海鹰航空通用装备有限责任公司北京市丰台区100074 湖南工程学院电气与信息工程学院湖南省湘潭市411104

离子风推进器具有结构简单、静音性好和可微型化的特点,应用前景广阔,但缺乏对其推力和推力功率比(推功比)的多因素系统研究和多级电极阵列试验数据支撑。该文分析电极形状尺寸和电极阵列结构等对推力和推功比的影响。研究表明:当导线... 详细信息

离子风推进器具有结构简单、静音性好和可微型化的特点,应用前景广阔,但缺乏对其推力和推力功率比(推功比)的多因素系统研究和多级电极阵列试验数据支撑。该文分析电极形状尺寸和电极阵列结构等对推力和推功比的影响。研究表明:当导线电极直径为0.2~0.6mm、翼型电极弦长为50~70mm以及型号为NACA0010、NACA0020时,减小导线电极直径或增大翼型电极前缘半径,推力增大,推功比减小;增加翼型电极弦长,推力增大,推功比也增大。当电极阵列组间距为80~240mm时,间距越小,推力和推功比越大;当电极阵列对间距为100~200mm时,间距越小,推力和推功比越小。矩阵式排列中,1×n结构具有给定电极组数下的最大推力和推功比。实测推进电极阵列产生推力3.2N,为离子风飞机飞行推进试验创造了条件。

关键词：离子风电晕放电推力推力功率比飞机推进

妊娠期糖尿病患者血清TXNIP、GRP78表达与胰岛素抵抗的相关性

在线全文

学校读者我要写书评

暂无评论

中国计划生育学杂志 2022年第6期30卷 1420-1424页

作者：任鸿睿赵振兴新疆军区总医院北京路医疗区乌鲁木齐830000 新疆南山机场医院

目的:探究妊娠期糖尿病(GDM)孕妇血清硫氧还蛋白相互作用蛋白(TXNIP)、葡萄糖调节蛋白78(GRP78)水平与胰岛素抵抗(IR)关系。方法:收集本院2018年11月—2021年4月确诊的GDM孕妇94例为GDM组,正常糖耐量(NGT)孕妇94例为NGT组。比较两组孕... 详细信息

目的:探究妊娠期糖尿病(GDM)孕妇血清硫氧还蛋白相互作用蛋白(TXNIP)、葡萄糖调节蛋白78(GRP78)水平与胰岛素抵抗(IR)关系。方法:收集本院2018年11月—2021年4月确诊的GDM孕妇94例为GDM组,正常糖耐量(NGT)孕妇94例为NGT组。比较两组孕妇年龄、糖尿病家族史、空腹血糖(FBG)、孕前及孕中期体质指数(BMI)、空腹胰岛素(FINS)、稳态模型胰岛素抵抗指数(HOMA-IR)、孕周等资料;酶联免疫吸附法测定血清TXNIP、GRP78水平;Pearson法分析GDM孕妇血清TXNIP、GRP78水平与HOMA-IR关系;受试者工作特征曲线(ROC)评估血清TXNIP、GRP78诊断GDM的价值;分析GDM发生的影响因素。结果:GDM组血清TXNIP、GRP78、FINS、FBG、HOMA-IR水平及糖尿病家族史占比均高于NGT组(P<0.05);GDM孕妇血清TXNIP、GRP78水平与HOMA-IR呈正相关(r=0.557、0.584,P<0.05)。血清TXNIP、GRP78水平诊断GDM的曲线下面积(AUC)分别为0.883、0.892,对应截断值分别为48.67 pg/ml、174.22 pg/ml,其敏感度分别为87.2%、88.3%,特异性分别为77.7%、76.6%;TXNIP、GRP78联合诊断GDM的AUC为0.950,其敏感度、特异性分别为85.1%、91.5%。糖尿病家族史、HOMA-IR、TXNIP、GRP78异常升高是影响GDM发生的危险因素(95%CI 1.697-4.214、1.572-3.622、1.626-3.959、1.572-3.723,P<0.05)。结论:GDM孕妇血清TXNIP、GRP78水平异常升高,均与IR正相关,二者联合诊断GDM的价值较高。

关键词：妊娠期糖尿病葡萄糖调节蛋白78 硫氧还蛋白相互作用蛋白胰岛素抵抗相关性诊断价值