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Electrolytic properties and element migration in Ni-TiB_(2)/Al_(2)O_(3)composite cathode

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Rare Metals 2021年第1期40卷 57-64页

作者： yu-dong liang Li-Jun Wang Deng-Peng Chai Sheng-Zhong Bao Ting-Ting Niu Jun-Wei Wang Ying Liu Rare Metals and Metallurgy Materials Research Institute General Research Institute for Nonferrous MetalsBeijing 100088China Zhengzhou Nonferrous Metals Research Institute Co. LtdChaleoZhengzhou 450041China

With alumina sol as binder and Ni metal as sintering aids,the Ni-TiB_(2)/Al_(2)O_(3) composite cathode material for aluminum electrolysis was prepared by coldpressed *** mechanical properties of the composite cathode material were *** electrolytic properties were identified by a 20-A electrolysis *** samples before and after electrolysis test were measured by energy-dispersive spectroscopy(EDS).The migration behavior of various elements in the electrolysis process was studied by phase *** result shows that Ni metal can effectively fill the gap between the aggregate during the sintering process,which can improve the sintering density of the composite cathode material *** voltage of the 20-A electrolysis test is *** impurity of aluminum liquid is 0.42%.The aluminum liquid can wet the cathode surface effectively,and the Ni-TiB_(2)/Al_(2)O_(3) composite is an ideal wettable cathode *** the process of electrolysis,the alkali elements in the electrolyte penetrate the electrode,where K goes deeper than *** generated on the cathode surface will also penetrate the cathode through the gap of the composite material,while Ni in the electrode will spread into the aluminum liquid layer.

关键词： Aluminum electrolysis TiB_(2) Alumina sol Cold-pressed sintering Infiltration

High-precision,fast DEM reconstruction method for spaceborne InSAR

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Science China(Information Sciences) 2011年第11期54卷 2400-2410页

作者： WANG QingSong,HUANG HaiFeng,dong Zhen,yu AnXi & liang DianNong National University of Defense Technology,Changsha 410073,China 1. National University of Defense Technology Changsha 410073 China

The primary objective of the spaceborne interferometric synthetic aperture radar (InSAR) system is to develop a consistent global digital elevation model (DEM).The improvement of the processing speed in global interferometry missions while maintaining the accuracy is becoming an important *** reconstruction is the most time-consuming step in the data processing required for spaceborne *** on a DEM reconstruction principle analysis,we exploited two basic characteristics of the mapping relation between the interferometric phase and 3-D position of target ***,the relation between the 3-D position of the target point and the interferometric phase can be approximated using ***,the corresponding polynomials change slowly in the local SAR ***,we verified the foundations of the two mentioned characteristics ***,we proposed a fast method of DEM reconstruction based on this *** descriptions of the step and key parameters of the fast algorithm are ***,the repeat-pass interferometric data obtained using TerraSAR-X was used to test the presented *** experimental results showed that a significant reduction in computation time is achieved with only a small loss in *** effectiveness and correctness of the proposed method were also validated.

关键词： interferometric synthetic aperture radar (InSAR) spaceborne SAR DEM reconstruction fast algorithm

Fouling in offshore areas southeast of the Zhujiang(Pearl)River Delta,the northern South China Sea

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Acta Oceanologica Sinica 2003年第2期22卷 201-212页

作者： Yan Tao, Yan Wenxia, dong yu, liang Guanhe, Yan Yan, Wang Huajie South China Sea Institute of Oceanology,Chinese Academy of Sciences,Guangzhou 510301,China. Chinese Acad Sci S China Sea Inst Oceanol Guangzhou 510301 Peoples R China

In order to understand the type and extent of marine fouling in offshore areas southeast ofthe Zhujiang (Pearl) River delta, within the period form May 1986 to June 1987, two biological buoys were deployed at water depths of 95 m and 113 m located in 114 km and 160 km off the coast of Hong Kong, respectively. Moreover, the fouling community of a Marex hydrological buoy located in 115 m depth water 172 km off Hong Kong was also surveyed. The results show that a total of 78 species were collected and identified. The panels exposed for 3 months were mainly dominated by stalked barnacles Conchoderma hunteri and Lepas anatifera and hydroids Orthopyxis sp. As for the buoys, including the subsurface buoy, and their mooring systems exposed for 6 and 12 months, respectively, some hard foulers such as common oysters, pearl oysters, acorn barnacles and bryozoans were also found. The compositions of fouling communities also varied greatly with depth.

关键词： Biofouling offshore structures the South China Sea

One-stage resection of four genotypes of bilateral multiple primary lung adenocarcinoma:A case report

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World Journal of Clinical Cases 2022年第28期10卷 10301-10309页

作者： De-yuan Zhang Jing Liu Yang Zhang Jia-yue Ye Sheng Hu Wen-Xiong Zhang dong-liang yu Yi-Ping Wei Department of Thoracic Surgery The Second Affiliated Hospital of Nanchang UniversityNanchang 330006Jiangxi ProvinceChina Department of Pathology The Second Affiliated Hospital of Nanchang UniversityNanchang 330006Jiangxi ProvinceChina

BACKGROUND The incidence of multiple primary lung cancer(MPLC)in China is 0.52%-2.45%.Most primary lung cancer cases have reported two lesions or three in rare *** report a rare case of bilateral simultaneous multiple primary lung adenocarcinoma of four different *** SUMMARY A 58-year-old woman was admitted to our hospital on June 29,2021,and upon physical examination,four multiple pulmonary nodules were identified in both *** computed tomography(CT)images revealed the presence of ground glass nodules,predicted to be high-risk cancer lesions by artificial *** the guidance of three-dimensional reconstruction of preo-perative CT images,the nodules were resected under *** pathological investigation revealed that the nodule types were adenocarcinoma in situ,invasive alveolar adenocarcinoma,and microinvasive *** excised nodules were further sequenced using high-throughput sequencing(semiconductor sequencing method)of 26 lung cancer genes to confirm that the four lesions were not *** patient was discharged on postoperative day 8,that is,on July 15,*** month later,she returned to the hospital for followup and *** CT examination showed that she had re-covered well,and no obvious exudation and effusion were found in both pleural *** of postoperative pulmonary function showed that her forced vital capacity was 1.40 L(preoperative value,2.27 L)and forced expiratory volume was 1.24 L(preoperative value,2.23 L).CONCLUSION The surgical plan for multiple pulmonary nodules should be carefully *** carefully selected patients with concurrently occurring multiple lung nodules in both lungs,sublobectomy is a safe and feasible plan for concurrent bilateral resection of the *** sequencing is necessary for MPLC diagnosis and treatment.

关键词： Multiple primary lung adenocarcinoma Three-dimensional reconstruction Sublobar resections High-throughput sequencing Case report

Standard-definition White-light,High-definition White-light versus Narrow-band Imaging Endoscopy for Detecting Colorectal Adenomas:A Multicenter Randomized Controlled Trial

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Current Medical Science 2024年第3期44卷 554-560页

作者： Chang-wei DUAN Hui-hong ZHAI Hui XIE Xian-zong MA dong-liang yu Lang YANG Xin WANG yu-fen TANG Jie ZHANG Hui SU Jian-qiu SHENG Jun-feng XU Peng JIN Chinese PLA General Hospital and Medical School Beijing100853China Department of Gastroenterology Xuanwu HospitalCapital Medical UniversityBeijing100053China Department of Gastroenterology The Seventh Medical Center of Chinese PLA General HospitalBeijing100700China Senior Department of Gastroenterology The First Medical Center of Chinese PLA General HospitalBeijing100853China

Objective This study aimed to compare the performance of standard-definition white-light endoscopy(SD-WL),high-definition white-light endoscopy(HD-WL),and high-definition narrow-band imaging(HD-NBI)in detecting colorectal lesions in the Chinese *** This was a multicenter,single-blind,randomized,controlled trial with a non-inferiority *** undergoing endoscopy for physical examination,screening,and surveillance were enrolled from July 2017 to December *** primary outcome measure was the adenoma detection rate(ADR),defined as the proportion of patients with at least one adenoma *** associated factors for detecting adenomas were assessed using univariate and multivariate logistic *** Out of 653 eligible patients enrolled,data from 596 patients were *** ADRs were 34.5%in the SD-WL group,33.5%in the HD-WL group,and 37.5%in the HD-NBI group(P=0.72).The advanced neoplasm detection rates(ANDRs)in the three arms were 17.1%,15.5%,and 10.4%(P=0.17).No significant differences were found between the SD group and HD group regarding ADR or ANDR(ADR:34.5%vs.35.6%,P=0.79;ANDR:17.1%vs.13.0%,P=0.16,respectively).Similar results were observed between the HD-WL group and HD-NBI group(ADR:33.5%vs.37.7%,P=0.45;ANDR:15.5%vs.10.4%,P=0.18,respectively).In the univariate and multivariate logistic regression analyses,neither HD-WL nor HD-NBI led to a significant difference in overall adenoma detection compared to SD-WL(HD-WL:OR 0.91,P=0.69;HD-NBI:OR 1.15,P=0.80).Conclusion HD-NBI and HD-WL are comparable to SD-WL for overall adenoma detection among Chinese *** can be concluded that HD-NBI or HD-WL is not superior to SD-WL,but more effective instruction may be needed to guide the selection of different endoscopic methods in the *** study’s conclusions may aid in the efficient allocation and utilization of limited colonoscopy resources,especially advanced imaging technologies.

关键词： standard-definition white-light endoscopy high-definition white-light endoscopy narrow-band imaging colonoscopy colorectal cancer screening adenoma detection rate

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NiFe_2O_4纳米线阵列的制备与磁性

物理学报 2005年第2期54卷 930-934页

作者：于冬亮都有为南京大学物理系固体微结构国家重点实验室江苏教育学院物理系南京210013

在氧化铝模板的纳米孔洞中 ,用电化学的方法沉积铁镍合金纳米线 ,经过 5 5 0℃ 30h氧化处理 ,成功制备出NiFe2 O4 纳米线阵列 .分别用扫描电子显微镜 (SEM)、透射电子显微镜 (TEM)、x射线衍射仪 (XRD)和振动样品磁场计 (VSM)对样品的形... 详细信息

在氧化铝模板的纳米孔洞中 ,用电化学的方法沉积铁镍合金纳米线 ,经过 5 5 0℃ 30h氧化处理 ,成功制备出NiFe2 O4 纳米线阵列 .分别用扫描电子显微镜 (SEM)、透射电子显微镜 (TEM)、x射线衍射仪 (XRD)和振动样品磁场计 (VSM)对样品的形貌、晶体结构和磁学性质进行了表征测试 .SEM和TEM观察结果显示氧化铝模板的孔洞分布均匀 ,孔心距约为 110nm ;纳米线的直径约为 70nm .XRD显示纳米线阵列的物相结构为NiFe2 O4 ;VSM测试结果表明 ,NiFe2 O4 纳米线阵列膜的易磁化方向垂直于膜面 .当垂直磁化时磁滞回线的矩形比约为 0 5 ,矫顽力为 4 1×10 3A m ,比氧化处理前的铁镍合金纳米线阵列都有显著提高 .

关键词：纳米线阵列 NiFe2O4 制备物相结构 XRD SEM 氧化处理磁学性质磁性磁滞回线

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CoFe_2O_4纳米线阵列的制备与磁性

功能材料 2006年第8期37卷 1210-1212页

作者：于冬亮都有为南京大学固体微结构国家重点实验室江苏省纳米科技重点实验室

在氧化铝模板的纳米孔洞中,用电化学的方法沉积钴铁合金纳米线,经过550℃、30h氧化处理,成功制备出钴铁氧体纳米线阵列。分别用透射电子显微镜(TEM)、X射线衍射仪(XRD)和振动样品磁场计(VSM)对样品的形貌、晶体结构和磁学性质进行了表... 详细信息

在氧化铝模板的纳米孔洞中,用电化学的方法沉积钴铁合金纳米线,经过550℃、30h氧化处理,成功制备出钴铁氧体纳米线阵列。分别用透射电子显微镜(TEM)、X射线衍射仪(XRD)和振动样品磁场计(VSM)对样品的形貌、晶体结构和磁学性质进行了表征测试。TEM观察结果显示纳米线粗细均匀,直径约为70nm。XRD显示纳米线的物相结构为CoFe2O4;VSM测试结果表明,CoFe2O4纳米线阵列的磁滞回线矫顽力为1.190×105A/m,比氧化处理前的钴铁合金纳米线阵列有显著提高。

关键词：纳米线 CoFe2O4 矫顽力

Force and impulse multi-sensor based on flexible gate dielectric field effect transistor

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 214-220页

作者： Chao Tan Junling Lü Chunchi Zhang dong liang Lei Yang Zegao Wang College of Materials Science and Engineering Sichuan UniversityChengdu 610065China The 54th Research Institute of China Electronics Technology Group Corporation Shijiazhuang 050081China

Nowadays,force sensors play an important role in industrial production,electronic information,medical health,and many other ***-dimensional material-based filed effect transistor(2D-FET)sensors are competitive with nano-level size,lower power consumption,and accurate ***,few of them has the capability of impulse detection which is a path function,expressing the cumulative effect of the force on the particle over a period of *** we fabricated the flexible polymethyl methacrylate(PMMA)gate dielectric MoS_(2)-FET for force and impulse sensor *** systematically investigated the responses of the sensor to constant force and varying forces,and achieved the conversion factors of the drain current signals(I_(ds))to the detected impulse(I).The applied force was detected and recorded by I_(ds)with a low power consumption of~30 *** sensitivity of the device can reach~8000%and the 4×1 sensor array is able to detect and locate the normal force applied on ***,there was almost no performance loss for the device as left in the air for two months.

关键词： flexible gate dielectric transistor force sensor impulse sensor force sensor array

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基于证据推理的汽轮机组状态评价方法

中国电机工程学报 2007年第29期27卷 74-79页

作者：董玉亮顾煜炯马履翱华北电力大学电站设备状态监测与控制教育部重点实验室北京市昌平区102206 国网北京电力建设研究院北京市宣武区100055

针对大型汽轮机组状态信息复杂,运行状态难以准确评价的问题,提出基于证据推理的状态评价方法。该方法充分考虑评价证据的不精确性和不完全性,在构建汽轮机组状态评价多属性决策树的基础上,提出定量和定性证据相结合的方法,并分别给出... 详细信息

针对大型汽轮机组状态信息复杂,运行状态难以准确评价的问题,提出基于证据推理的状态评价方法。该方法充分考虑评价证据的不精确性和不完全性,在构建汽轮机组状态评价多属性决策树的基础上,提出定量和定性证据相结合的方法,并分别给出定性和定量2种状态决策知识的获取和转化方法。建立基于决策树的状态评价模型,给出证据推理算法,并将该方法应用于某300MW汽轮机组的状态评价。结果表明,该方法可行有效,很好地解决了部分证据不精确和不完全的状态评价问题,评价结果为维修决策提供依据。

关键词：汽轮机组证据推理决策树状态评价