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Study of factors influencing the occurrence rate of 60 Hz power line radiation in the topside ionosphere:A systematic survey using the CSES satellite

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Science China(Technological Sciences) 2024年第6期67卷 1879-1892页

作者： MA zhenhui zhao ShuFan LIAO Li SHEN XuHui LU HengXin School of Emergency Management Science and Engineering University of Chinese Academy of SciencesBeijing100049China State Key Laboratory of Space Weather National Space Science CenterChinese Academy of SciencesBeijing100190China Key Laboratory of Solar Activity and Space Weather National Space Science CenterChinese Academy of SciencesBeijing100190China National Institute of Natural Hazards Ministry of Emergency Management of ChinaBeijing100085China Institute of Geophysics China Earthquake AdministrationBeijing100081China

We analyze the topside ionosphere power line radiation(PLR)at 60 Hz over the US using electric field data collected by CSES satellite between January 2019 and December *** study aimed to further investigate the month-to-month variation characteristic of PLR occurrence rate observed by satellite and its several influencing factors,including solar radiation,lightning activity,and try to clarify the influence of electricity *** results show that the solar radiation(solar zenith angle and F10.7)plays a major role in the variation of the PLR occurrence rate,and that there is no direct connection with the number of *** the relationship between PLR occurrence rate and electricity consumption,the low occurrence rate associated with decreased weekend electricity consumption was not observed in the ***,there is a significant difference in PLR occurrence rate between the East and West Coasts of the US at the same latitude during the same time period,suggesting that the significant difference in PLR occurrence rate is caused by the significant difference in electricity consumption between the two *** excluding the effect of solar radiation on PLR occurrence rate,we concluded that only a significant difference in regional electricity consumption could lead to a corresponding change in PLR occurrence rate detected by the Low-Earth-Orbit ***,we also found there is seasonal variation in the diurnal differences of the PLR occurrence rate caused by seasonal variation of the lower ionosphere.

关键词： CSES satellite power line radiation occurrence rate solar radiation lightning activity electricity consumption

克唑替尼靶向治疗间变性淋巴瘤激酶与C-ros原癌基因1-受体酪氨酸激酶融合基因阳性晚期非小细胞肺癌患者的效果分析

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中国医药 2023年第11期18卷 1627-1631页

作者：李莉赵振慧李妍马小平刘丹李冰玉赵兵新疆医科大学附属肿瘤医院肿瘤内科乌鲁木齐830011

目的分析克唑替尼靶向治疗间变性淋巴瘤激酶(ALK)、C-ros原癌基因1-受体酪氨酸激酶(ROS1)融合基因阳性晚期非小细胞肺癌(NSCLC)患者的效果。方法选取2020年6月至2022年6月来新疆医科大学附属肿瘤医院就诊的123例ALK阳性(ALK组)、15例ROS... 详细信息

目的分析克唑替尼靶向治疗间变性淋巴瘤激酶(ALK)、C-ros原癌基因1-受体酪氨酸激酶(ROS1)融合基因阳性晚期非小细胞肺癌(NSCLC)患者的效果。方法选取2020年6月至2022年6月来新疆医科大学附属肿瘤医院就诊的123例ALK阳性(ALK组)、15例ROS1阳性(ROS1组)晚期NSCLC患者为研究对象,所有患者均给予克唑替尼治疗,并纳入同期来本院进行健康检查的50名健康志愿者作为对照组。比较对照组入组时以及ALK组和ROS1组治疗前及治疗1、3个月后的循环肿瘤细胞(CTCs)、循环肿瘤DNA(CTDNA)、循环血液外泌体微小RNA-145(miR-145)、miR-200水平及ALK、ROS1阳性率。结果治疗前ALK组和ROS1组CTCs和CTDNA水平均高于对照组,差异均有统计学意义(均P<0.05)。治疗1、3个月后ALK组和ROS1组患者的CTCs水平逐渐降低,CTDNA水平先升高后降低,与治疗前比较差异均有统计学意义[ALK组:(7.84±0.91)、(5.17±0.87)比(11.53±3.52),(7.19±1.13)、(4.02±0.95)比(5.49±1.17);ROS1组:(8.05±1.16)、(5.86±0.92)比(12.71±4.08),(7.42±1.24)、(4.55±1.14)比(5.66±1.32)](均P<0.05)。治疗前ALK组和ROS1组miR-145水平均低于对照组、miR-200水平均高于对照组,差异均有统计学意义(均P<0.05)。治疗1、3个月后ALK组和ROS1组患者的miR-145水平均升高,miR-200水平均降低,与治疗前比较差异均有统计学意义(均P<0.05)。对照组ALK、ROS1阳性率均为0。治疗1、3个月后ALK组和ROS1组患者的ALK、ROS1阳性率均低于治疗前,差异均有统计学意义(均P<0.05)。结论克唑替尼靶向治疗ALK、ROS1融合基因阳性晚期NSCLC能够通过调节患者CTCs、CTDNA、miR-145、miR-200水平而降低ALK、ROS1阳性表达率。

关键词：非小细胞肺癌克唑替尼间变性淋巴瘤激酶 C-ros原癌基因1-受体酪氨酸激酶融合基因靶向治疗

信息化部门在高校数字化转型环境下面临的新挑战

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计算机应用文摘 2024年第20期40卷 23-27页

作者：蒲飞陈苗赵正辉杨海英谢佳欣重庆医药高等专科学校信息图书中心重庆401331

在教育数字化转型的大背景下,各高校积极开展数字化转型的研究与实践。关于高校数字化转型“转什么”和“如何转”的问题,已有大量文献进行了深入探讨。然而,具体到执行层面,“谁来转?哪个部门能够有效执行转型规划?”等问题仍需进一步... 详细信息

在教育数字化转型的大背景下,各高校积极开展数字化转型的研究与实践。关于高校数字化转型“转什么”和“如何转”的问题,已有大量文献进行了深入探讨。然而,具体到执行层面,“谁来转?哪个部门能够有效执行转型规划?”等问题仍需进一步被明确。许多高校将这一职责赋予了信息化职能部门,但传统的信息化部门在权责职能上与数字化转型的要求存在较大差距。文章首先梳理了高校网络与信息化工作的组织架构,阐述了各类架构的主要优点,并分析了高校传统信息化部门的主要职责及其在数字化转型中的权责差距。高校数字化转型应推动“六转”先行,即从决策层的理念、信息化部门的管理架构、管理机制与体制、权责划分、各类人员素养提升以及转型经费的统筹6个方面率先转型,才能为高校数字化转型的成功提供重要保障。

关键词：高校数字化转型信息化部门 “六转”先行

CO_(2)封存数值模拟研究——以西部某油田驱油为例

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钻探工程 2023年第S1期50卷 498-501页

作者：马英瑞陈晨刘祥张永田赵振辉吉林大学建设工程学院吉林长春130026 自然资源部复杂条件钻采技术重点实验室吉林长春130026 中国石化西北油田分公司采油四厂新疆乌鲁木齐830011

针对CO_(2)捕集、利用与封存(CCUS)问题,将CO_(2)注入油藏驱油,提高原油采收率的同时封存CO_(2),是一种绿色经济高效的生产模式。本研究建立了油藏开采三维三相多组分数值模型,研究了开采和封存效果。结果表明,CO_(2)能够有效降低原油粘... 详细信息

针对CO_(2)捕集、利用与封存(CCUS)问题,将CO_(2)注入油藏驱油,提高原油采收率的同时封存CO_(2),是一种绿色经济高效的生产模式。本研究建立了油藏开采三维三相多组分数值模型,研究了开采和封存效果。结果表明,CO_(2)能够有效降低原油粘度,大幅度提升产油速率和累积产油量。另外,开采结束时,有大量CO_(2)封存至储层。由此可见,注入CO_(2)的开采手段具有广阔的前景。本文的研究进一步提高了对CCUS的认识,为实现中国的碳达峰、碳中和战略目标具有重要意义。

关键词： CO_(2)驱油 CO_(2)封存原油开采数值模拟

430铁素体不锈钢薄板激光焊接背面飞溅和熔池动态的数值模拟

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电焊机 2024年第8期54卷 118-127页

作者：高天赵朋成燕国帅王自强景水秀赵振辉刘君青岛科技大学机电工程学院山东青岛266061 青岛海尔洗涤电器有限公司山东青岛266426

薄板的激光焊接对离焦量敏感,很小的离焦量偏差就会导致熔池不稳定。本文采用数值模拟的方法,研究了离焦量对0.6 mm厚430铁素体不锈钢薄板激光焊熔池动态行为的影响,分析了形成焊道背面飞溅的原因。结果表明,在目前所用的焊接工艺参数... 详细信息

薄板的激光焊接对离焦量敏感,很小的离焦量偏差就会导致熔池不稳定。本文采用数值模拟的方法,研究了离焦量对0.6 mm厚430铁素体不锈钢薄板激光焊熔池动态行为的影响,分析了形成焊道背面飞溅的原因。结果表明,在目前所用的焊接工艺参数条件下,离焦量决定着激光热输入在熔池中的位置和分布。熔池中匙孔的深度随着离焦量的降低而增大,负离焦(-0.1 mm)形成穿透的匙孔,零离焦(0 mm)和正离焦(+0.1 mm)形成的匙孔尺寸较小。不同离焦量均形成具有束腰结构的熔透熔池,熔池表面和匙孔表面的流速最大。熔池高度方向上存在由中间束腰部位向上下表面流动的两个涡流,液体金属在熔池上表面由熔池后方向前方流动。匙孔中的蒸发作用力和表面的高流速使匙孔不断闭合,在底部形成封闭的气泡。背面飞溅只在负离焦条件下形成,零离焦和正离焦不产生背面飞溅。负离焦条件下,熔透熔池形成的初期在焊道背面形成小颗粒的滴落型飞溅,主要是由熔池重力和表面流动导致;在穿透匙孔形成的末期因为气泡破裂形成大颗粒的喷射型飞溅。正离焦条件下熔池的形态、流动较为稳定,预测的焊道横断面轮廓与实验结果吻合良好。

关键词：激光焊接铁素体不锈钢离焦量熔池动态背面飞溅

Water Vapor Motion Signal Extraction from FY-2E Longwave Infrared Window Images for Cloud-free Regions:The Temporal Difference Technique

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Advances in Atmospheric Sciences 2014年第6期31卷 1386-1394页

作者： YANG Lu WANG zhenhui CHU Yanli zhao Hang TANG Min Beijing Meteorological Office (Da Xing) Collaborative Innovation Center on the Forecast and Evaluation of Meteorological Disasters Nanjing University of Information Science & Technology School of Atmospheric Physics Nanjing University of Information Science & Technology Institute of Urban Meteorology China Meteorological Administration

The aim of this study is to calculate the low-level atmospheric motion vectors （AMVs） in clear areas with FY-2E IR2 window （11.59-12.79 μm） channel imagery,where the traditional cloud motion wind technique fails.A new tracer selection procedure,which we call the temporal difference technique,is demonstrated in this *** technique makes it possible to infer low-level wind by tracking features in the moisture pattern that appear as brightness temperature （TB） differences between consecutive sequences of 30-min-interval FY-2E IR2 images over cloud-free *** TB difference corresponding to a 10％ change in water vapor density is computed with the Moderate Resolution Atmospheric Transmission （MODTRAN4） radiative transfer *** total contribution from each of the 10 layers is analyzed under four typical atmospheric conditions：tropical,midlatitude summer,***,and midlatitude *** peak level of the water vapor weighting function for the four typical atmospheres is assigned as a specific height to the TB ＂wind＂.This technique is valid over cloudfree ocean *** proposed algorithm exhibits encouraging statistical results in terms of vector difference （VD）,speed bias （BIAS）,mean vector difference （MVD）,standard deviation （SD）,and root-mean-square error （RMSE）,when compared with the wind field of NCEP reanalysis data and rawinsonde observations.

关键词： atmospheric motion vector clear sky radiative transfer temporal difference technique

Expression, purification and polyclonal antibody generation of p23, an Hsp90 cochaperone, in the amphioxus Branchiostoma belcheri

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Acta Oceanologica Sinica 2006年第6期25卷 99-105页

作者： zhao Bosheng ZHANG Shicui PANG Qiuxiang LIU zhenhui LIANG Yujun Department of Marine Biology Ocean University of China Qingdao 266003 China School of Life Sciences Shandong University of Technology Zibo 255049 China

The cDNA of amphioxus p23, a highly conserved co-chaperone for Hsp90, was cloned into a bacterial expression vector pGEX - 6P - 1 and the GST-tagged fusion protein was produced in Eschherichia coli cells. The recombinant p23 was purified by affinity purification, and its molecular mass was estimated to be approximately 22 kDa by sodium dedecyl sulfate-polyacrylamide gel electrephoresis. The N-terminus of purified p23 was sequenced, and the resulting amino acid sequence matches exactly the predicted residues deduced from the amphioxus p23 gene. Besides, pelyclonal antibodies against the recombinant p23 were generated, and these antibodies not only recognized specifically the fusion protein GST - p23 from induced E. coli cells, purified GST - p23 and p23 protein, but also reacted with the total protein extracted fi＇om the adult amphioxus and formed a single positive band. These results pave the way for identifying its tissue and subcellular localization, and may open the door to clarifying its structure and mechanisms of biological role.

关键词： amphioxus Branchiostoma p23 fusion protein purification antibody

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影响对虾性腺发育的因素

水产养殖 2020年第10期41卷 16-19页

作者：庞智予赵真慧赖晓芳张庆起高焕海洋生命与水产学院/江苏省海洋生物技术重点实验室江苏海洋大学江苏连云港222005 江苏省农业种质资源保护与利用平台江苏南京210014 连云港赣榆佳信水产开发有限公司江苏赣榆222100

影响对虾性腺发育的因素有很多,最主要的是温度、盐度、光照和饵料这4个外源因素,该文对此进行了总结和分析,以期为促进对虾类苗种繁育技术的发展提供指导帮助。

关键词：对虾性腺生长发育环境因素

Layered double hydroxide nanosheets activate CsPbBr_(3) nanocrystals for enhanced photocatalytic CO_(2) reduction

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Nano Research 2022年第7期15卷 5953-5961页

作者： Shuang zhao Qian Liang Zhongyu Li Hong Shi Zhenyu Wu Hui Huang zhenhui Kang Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology School of Petrochemical EngineeringChangzhou UniversityChangzhou 213164China Institute of Functional Nano and Soft Materials Laboratory(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials&DevicesSoochow UniversitySuzhou 215123China Macao Institute of Materials Science and Engineering Macao University of Science and TechnologyTaipa 999078MacaoChina Institute of Advanced Materials Northeast Normal UniversityChangchun 130024China

Halide perovskite nanocrystals are potential catalysts for CO_(2) photoreduction,while,the strong radiative recombination and insufficient stability limit their catalytic performance and ***,we report that layered double hydroxide nanosheets activate CsPbBr_(3) nanocrystals(CLDH)for enhanced photocatalytic CO_(2) *** CLDH heterojunctions show the remarkably enhanced CO_(2) photoreduction performance;without cocatalyst and sacrificial agent,the average electron consumption rate of CLDH(49.16μmol·g^(−1)·h^(−1))is approximately 3.7 times higher than that of pristine CsPbBr_(3).Also,CLDH catalyst exhibits a robust stability after ten cycles over 30 h.

关键词： CsPbBr_(3) NiAl-LDH CO_(2)reduction Z-scheme photocatalysis