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A Feasible Approach for Improving Accuracy of Ground Deformation Measured by D-InSAR

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Journal of China University of Mining and Technology 2007年第2期17卷 262-266页

作者： CHANG Zhan-qiang gong hui-li ZHANG Jing-fa gong li-xia College of Resource Environment ＆ Tourism Capital Normal University Beijing 100037 China Key Lab of 3D Information Acquisition and Application Ministry of Education Beijing 100037 China Institute of Crustal Dynamics National Seismological Bureau Beijing 100085 China

D-InSAR is currently one of the most popular research tools in the field of Microwave Remote Sensing. It is unrivaled in its aspect of measuring ground deformation due to its advantages such as high resolution,continuous spa-tial-coverage and dynamics. However,there are still a few major problems to be solved urgently as a result of the intrin-sic complexity of this technique. One of the problems deals with improving the accuracy of measured ground deforma-tion. In this paper,various factors affecting the accuracy of ground deformation measured by D-InSAR are systemati-cally analyzed and investigated by means of the law of measurement error propagation. At the same time,we prove that the ground deformation error not only depends on the errors of perpendicular baselines as well as the errors of the inter-ferometric phase for topographic pair and differential pair,but also on the combination of the relationship of perpen-dicular baselines for topographic pairs and differential pairs. Furthermore,a feasible approach for improving the accu-racy of measured ground deformation is proposed,which is of positive significance in the practical application of D-InSAR.

关键词： D-InSAR ground deformation perpendicular baseline interferometric phase

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目视管理在胸外科精密器械管理中的运用

中国医疗器械信息 2024年第4期30卷 170-172页

作者：熊兰兰刘珠公丽辉江西省肿瘤医院胸外科江西南昌330017

目的:研究分析将目视管理应用在胸外科精密器械管理中的使用效果。方法:选择本院在2021年1月~12月未实施目视管理的80件胸外科精密器械作为对照组,按照医院常规精密器械管理流程实施管理;将本院2022年1月~12月接受目视管理的100件胸外... 详细信息

目的:研究分析将目视管理应用在胸外科精密器械管理中的使用效果。方法:选择本院在2021年1月~12月未实施目视管理的80件胸外科精密器械作为对照组,按照医院常规精密器械管理流程实施管理;将本院2022年1月~12月接受目视管理的100件胸外科精密器械作为实验组,结合医院管理流程加上目视管理方法进行专科分类、规范使用等方式管理胸外科精密器械,对比分析两组精密器械的缺损情况、包装合格情况、使用拿取出错情况、器械分类、回收情况、使用满意情况等。结果:对照组器械取用差错率和器械损耗率均远高于实验组,包装合格率明显较实验组更低,差异有统计学意义(P<0.05)。对照组的器械不良情况发生率高于实验组,差异有统计学意义(P<0.05)。精密器械的分类以及回收消耗时间对比,对照组较实验组长(P<0.05)。医护人员对精密器械的使用满意度(器械准备、使用效果以及护士配合使用)比较,实验组均高于对照组(P<0.05)。结论:将目视管理的管理方法运用在胸外科精密器械管理过程中,可以有效提高医院对胸外科精密器械的管理水平,同时还能促进医护人员对器械的使用满意度。

关键词：目视管理胸外科精密器械管理应用效果

The characteristics of rill development and their effects on runoff and sediment yield under different slope gradients

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Journal of Mountain Science 2016年第3期13卷 397-404页

作者： HE Ji-jun SUN li-ying gong hui-li CAI Qiang-guo JIA li-juan Base of the State Laboratory of Urban Environmental Processes and Digital Modeling Capital Normal University Beijing 100048 China Laboratory for Controllable Synthesis and Application of Micro-sized Functional Materials Capital Normal University Beijing 100048 China Key Laboratory of Water Cycle and Related Land Surface Processes Institute of Geographical Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China Department of Civil Engineering University of New Mexico Albuquerque NM 87131 USA

Rill formation is the predominant erosion process in slope land in the Loess Plateau, China. This study was conducted to investigate rill erosion characteristics and their effects on runoff and sediment yielding processes under different slope gradients at a rate of 10°, 15°, 20° and 25° with rainfall intensity of 1.5 mm min-1 in a laboratory setting. Results revealed that mean rill depth and rill density has a positive interrelation to the slope gradient. To the contrary, width-depth ratio and distance of the longest rill to the top of the slope negatively related to slope gradient. All these suggested that increasing slope steepness could enhance rill headward erosion, vertical erosion and the fragmentation of the slope surface. Furthermore,total erosion tended to approach a stable maximum value with increasing slope, which implied that there is probably a threshold slope gradient where soil erosion begins to weaken. At the same time, the correlation analysis showed that there was a close connection between slope gradient and the variousindices of soil erosion: the correlation coefficients of slope gradient with maximal rill depth, number of rills and the distance of the longest rill from the top of the slope were 0.98, 0.97 and-0.98, respectively,indicating that slope gradient is the major factor of affecting the development of rills. Furthermore,runoff was not sensitive to slope gradient and rill formation in this study. Sediment concentration,however, is positively related to slope gradient and rill formation, the sediment concentrations increased rapidly after rill initiation, especially. These results may be essential for soil loss prediction.

关键词： Rill erosion Erosion processes Simulated rainfall Runoff Slope gradient

Metachronous contralateral testicular and bilateral adrenal metastasis of chromophobe renal cell carcinoma:a case report and review of the literature

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2010年第5期11卷 386-389页

作者： Hai-yang WU li-wei XU You-yun ZHANG Yan-lan YU Xin-de li gong-hui li Department of Urology Sir Run Run Shaw Hospital School of Medicine Zhejiang University Hangzhou 310016 China

Chromophobe renal cell carcinoma(ChRCC) metastatic to the testis has not,to the best of our knowledge,been reported in the *** have there been reports of delayed bilateral adrenal metastasis of *** we report a case of metachronous contralateral testicular and bilateral adrenal metastasis of ChRCC in a 70-year-old man who underwent right radical nephrectomy for RCC six years *** was admitted to the hospital because of left intrascrotal enlargement of two-month *** revealed a mass in the upper pole of the left *** tomography(CT) showed irregular masses in the bilateral adrenal *** radical orchiectomy and laparoscopic bilateral adrenalectomy were *** pathologic examination showed metastatic ChRCC in the left testis and bilateral adrenal *** follow-up showed that the patient had survived for at least 56 months without *** case highlights the unique behavior of RCC with an unusual site of metastasis and favorable survival after multiple metastasectomy.

关键词： Renal cell carcinoma(RCC) Testicular metastasis Adrenal metastasis Metastasectomy

Development of CONTHAC-3D and hydrogen distribution analysis of HPR1000

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Nuclear Science and Techniques 2024年第2期35卷 210-221页

作者： hui Wang Jing-Jing li Yuan Chang gong-lin li Ming Ding China Nuclear Power Engineering Co.LTD. Beijing 100084China Fundamental Science on Nuclear Safety and Simulation Technology Laboratory Harbin 100049China

An in-house code,CONTHAC-3D,was developed to calculate and analyze thermal-hydraulic phenomena in containments during severe ***-3D is a three-dimensional computational fluid dynamics code that can be applied to predict gas flow,diffusion,and steam condensation in a containment during a severe hypothetical accident,as well as to obtain an estimate of the local hydrogen concentration in various zones of the ***-3D was developed using multiple models to simulate the features of the proprietary systems and equipment of HPR1000 and ACP100,such as the passive cooling system,passive autocatalytic recombiners and the passive air cooling *** validate CONTHAC-3D,a GX6 test was performed at the Battelle Model Containment *** hydrogen concentration and temperature monitored by the GX6 test are accurately predicted by ***,the hydrogen distribution in the HPR1000 containment during a severe accident was *** results show that the hydrogen removal rates calculated using CONTHAC-3D for different types of PARs agree well with the theoretical values,with an error of less than 1%.As the accident progresses,the hydrogen concentration in the lower compartment becomes higher than that in the large space,which implies that the lower compartment has a higher hydrogen risk than the dome and large space at a later stage of the *** amount of hydrogen removed by the PARs placed on the floor of the compartment is small;therefore,raising the installation height of these recombiners appropriately is ***,we do not recommend installing all autocatalytic recombiners at high *** study findings in regard to the hydrogen distribution in the HPR1000 containment indicate that CONTHAC-3D can be applied to the study of hydrogen risk containment.

关键词： Hydrogen risk mitigation Pressurized water reactor HPR1000 Thermal hydraulic CONTHAC-3D

Preheating-assisted solid-state friction stir repair of Al-Mg-Si alloy plate at different rotational speeds

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International Journal of Minerals,Metallurgy and Materials 2024年第4期31卷 725-736页

作者： hui Wang Yidi li Ming Zhang Wei gong Ruilin Lai Yunping li State Key Laboratory of Powder Metallurgy Central South UniversityChangsha 410083China Research Institute of light Alloy Central South UniversityChangsha 410083China

Additive friction stir deposition(AFSD)is a novel structural repair and manufacturing technology has become a research hotspot at home and abroad in the past five *** this work,the microstructural evolution and mechanical performance of the Al-Mg-Si alloy plate repaired by the preheating-assisted AFSD process were *** evaluate the tool rotation speed and substrate preheating for repair quality,the AFSD technique was used to additively repair 5 mm depth blind holes on 6061 aluminum alloy *** results showed that preheat-assisted AFSD repair significantly improved joint bonding and joint strength compared to the control non-preheat substrate ***,increasing rotation speed was also beneficial to improve the metallurgical bonding of the interface and avoid volume *** preheating conditions,the UTS and elongation were positively correlated with rotation *** the process parameters of preheated substrate and tool rotation speed of 1000 r/min,defect-free specimens could be obtained accompanied by tensile fracture occurring in the substrate rather than the repaired *** UTS and elongation reached the maximum values of 164.2MPa and 13.4%,which are equivalent to 99.4%and 140%of the heated substrate,respectively.

关键词： additive friction stir deposition structural repair tool rotation speed Al alloy

Recent advances in the study of testicular nuclear receptor 4

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2013年第3期14卷 171-177页

作者： Xian-fan DING Shi-cheng YU Bi-de CHEN Shin-jen liN Chawnshang CHANG gong-hui li Department of Urology Sir Run Run Shaw HospitalSchool of MedicineZhejiang University George Whipple Lab for Cancer Research Departments of Pathology and UrologyUniversity of Rochester

Testicular nuclear receptor 4(TR4),also known as NR2C2(nuclear receptor subfamily 2,group C,member 2),is a transcriptional factor and a member of the nuclear receptor ***4 was initially cloned from human and rat hypothalamus,prostate,and testes *** almost two decades,its specific tissue distribution,genomic organization,and chromosomal assignment have been well investigated in humans and ***,it has been very difficult to study TR4's physiological functions due to a lack of specific *** knock-out animal techniques provide an alternative approach for defining the biological functions of *** vivo studies of TR4 gene knockout mice(TR4-/-) found that they display severe spinal curvature,subfertility,premature aging,and prostate prostatic intraepithelial neoplasia(PIN) *** modulators,downstream target gene regulation,feedback mechanisms,and differential modulation mediated by the recruitment of other nuclear receptors and coregulators have been identified in studies using the TR4-/-*** the establishment of a tissue-specific TR4-/-mouse model,research on TR4 will be more convenient in the future.

关键词：核受体睾丸前列腺癌组织分布动物技术基因敲除小鼠模型染色体分配

Recent progress in Prussian blue electrode for electrochromic devices

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Frontiers in Energy 2024年第2期18卷 160-186页

作者： Yongting ZHANG Wanzhong li hui gong Qianqian ZHANG liang YAN Hao WANG Key Laboratory for New Functional Materials of the Ministry of Education Faculty of Materials and ManufacturingBeijing University of TechnologyBeijing 100124China School of Instrument Science and Engineering Southeast UniversityNanjing 210096China Beijing Aerospace Times Laser Inertial Technology Company Beijing 100094China

Great progress has been made in the electrochromic(EC)technology with potential applications in various *** one of the most promising EC materials,Prussian blue(PB)has attracted great attention due to its excellent EC performance,such as low cost,easy synthesis,rich color states,chemical stability,suitable redox potential,and fast color-switching *** review summarizes the recent progress in PB electrodes and devices,including several typical preparation techniques of PB electrodes,as well as the recent key strategies for enhancing EC performance of PB ***,PB-based electrochromic devices(ECDs)have been widely used in various fields,such as smart windows,electrochromic energy storage devices(EESDs),wearable electronics,smart displays,military camouflage,and other *** opportunities and obstacles are suggested for advancing the development of PB-based *** comprehensive review is expected to offer valuable insights for the design and fabrication of sophisticated PBbased ECDs,enabling their practical integration into realworld applications.

关键词： Prussian blue electrochromism energy storage smart windows

line-scanning microscopy with laterally symmetric imaging using simultaneous cross-line illumination

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Photonics Research 2024年第7期12卷 1513-1521页

作者： DAN SHEN YAFENG li MENG WANG YUTONG HAN BOliN LU hui gong QINGMING LUO JING YUAN Britton Chance Center for Biomedical Photonics and MoE Key Laboratory for Biomedical Photonics Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan 430074China HUST-Suzhou Institute for Brainsmatics JITRI Institute for BrainsmaticsSuzhou 215123China School of Biomedical Engineering Hainan UniversityHaikou 570228China

Using an on-the-fly scanning scheme, line confocal microscopy can obtain complex structures of large biological tissues with high throughput. Yet, it suffers from lateral imaging asymmetry and thus introduces the potential deformations of the observation results. Here, we propose cross-line illumination microscopy (cliM) that acquires the imaging data of two perpendicular directions simultaneously through the same objective lens in a line scanning and utilizes two-direction deconvolution fusion to achieve lateral symmetric imaging *** fluorescence beads indicates that cliM reduces lateral resolution asymmetry from 46.1%to 2.5%and improves lateral resolution by 31.0%, compared with traditional line-scanning imaging. Compared with commercial point-confocal microscopy, the cliM has a 25.84×increase in imaging speed and 1.93×better background-suppressing ability when imaging an 11,306μm×7783μm×100μm mouse kidney slice. We also show the advantages of the cliM in observing direction-sensitive texture features by imaging a muscular tissue slice. cliM offers a novel solution to achieve laterally symmetric line-scanning imaging with simple modifications while maintaining high throughput and accuracy for imaging large-scale samples.

关键词： illumination simultaneous scanning