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Bilateral diffuse uveal melanocytic proliferation associated with endometrial carcinoma–multimodal imaging analysis

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International Journal of Ophthalmology(English edition) 2022年第7期15卷 1209-1213页

作者： zhi-peng cai Hong Zhang Jin-Jing Zhang Chuan-Hong Jie Fang-Tian Dong Eye Hospital China Academy of Chinese Medical SciencesBeijing 100040China Department of Ophthalmology Peking Union Medical College HospitalChinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100730China

Dear Editor,We present a rare case of bilateral diffuse uveal melanocytic proliferation (BDUMP) associated with endometrial *** is a rare paraneoplastic ocular syndrome with generally poor *** features include:1) multiple subtle,round,or oval red patches in the retinal pigment epithelium (RPE) of the posterior fundus;2)multifocal areas of early hyperfluorescence corresponding to these patches;3) development of multiple,slightly elevated pigmented and non-pigmented uveal melanocytic tumours with diffuse thickening of the uveal tracts;4) exudative retinal detachment;5) rapid progression of *** patches progressively increase in size and merge into the giraffe-like pattern characteristic of *** signs may be present,including cysts in the ciliary body and iris,dilated episcleral vessels,and a shallow anterior chamber.

关键词： elevated epithelium modal

Oxidation damage and interfacial failure of dissimilar metal welds containing ferritic heat resistant steels

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Journal of Iron and Steel Research International 2021年第11期28卷 1439-1450页

作者： Xiao-gang Li zhi-peng cai Xin Chen Shu-qing Dong Wen-he cai Yu Zhang Shan-lin Li Ke-jian Li Shao-shi Rui Ji-luan Pan Department of Mechanical Engineering Tsinghua UniversityBeijing 100084China Key Laboratory for Advanced Materials Processing Technology Ministry of EducationBeijing 100084China State Key Laboratory of Tribology Tsinghua UniversityBeijing 100084China Collaborative Innovation Center of Advanced Nuclear Energy Technology Tsinghua UniversityBeijing 100084China China Datang Corporation Science and Technological Research Institute Thermal Power Technology Research InstituteBeijing 100040China

The ex-service steam tubes containing dissimilar metal weld(DMW)between high Cr ferritic steel T91 and austenitic stainless steel TP347H and the ex-service steam tubes containing DMW between low Cr ferritic steel G102 and austenitic stainless steel TP347H were obtained from coal-fired thermal power plants in China,and their microstructures at the nickel-based weld metal(WM)/ferritic steel interfaces and oxidation characteristics were *** operating for 15,000 h at steam temperature of 541 C and steam pressure of 17.5 MPa,a G102/TP347H DMW failed along the WM/G102 steel interface,which was a dangerous premature failure mode without obvious plastic *** interfacial failure was attributed to the interaction between oxidation and cracking along the interface,where fracture appeared to be related with the strain concentration at the *** notch along the WM/G102 steel interface was the precursor of premature interfacial failure of DMW involving *** the DMW involving high Cr ferritic steel T91,ferritic steel side could form a Cr-rich passive film during service and thus would not be further oxidized after operating for 67,000 h at steam temperature of 541 C and steam pressure of 3.5 *** was concluded that oxidation played a more important role in failure of these DMWs,and retarding the development of oxidation and avoiding the interfacial oxide notch would dramatically improve the service performance of steam tubes containing DMWs.

关键词： Dissimilar metal weld Ferritic heat resistant steel Nickel-based weld metal Oxidation Interfacial failure High-temperature service

Rapid enlargement of choroidal osteoma in an adult patient

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International Journal of Ophthalmology(English edition) 2022年第12期15卷 2041-2042页

作者： Xiao-Yan Zhang Xiao-Feng Hao Hong Zhang Chao Wang Bin Luo Yi-Xin Qi zhi-peng cai Li-Ke Xie Department of Ophthalmology Eye HospitalChina Academy of Chinese Medical SciencesBeijing 100040China Department of Neurosurgery Beijing Neurosurgical InstituteBeijng 100040China Department of Neuro-intervention Beijing Tiantan HospitalCapital Medical UniversityBeijing 100040China

Dear Editor,We present the first adult patient with rapid enlargement of choroidal *** osteoma is a rare benign tumor characterized by mature cancellous bone in the choroid[1].The usual progress of the tumor is not ***,we report that choroidal osteoma enlarged rapidly in an adult patient with Rosai-Dorfman disease(RDD).This study adhered to the tenets of the Declaration of Helsinki,and the written informed consent was obtained from the patient(YKEC-KT-2022-024-P002).

关键词： patient choroidal tumor

具有e指数内建电场的透射式GaAs光电阴极响应特性的理论分析

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发光学报 2018年第5期39卷 661-667页

作者：蔡志鹏姚军财黄文登何军锋陕西理工大学物理与信息工程学院陕西汉中723001

设计了具有e指数内建电场的透射式GaAs负电子亲和势阴极,利用数值计算方法研究了它的时间响应特性和量子效率特性。结果表明,当吸收区厚度L^0.2~1.5μm时,阴极的响应时间和量子效率均随L的增大而增大;尤其当L^1.1μm时响应时间达到10ps... 详细信息

设计了具有e指数内建电场的透射式GaAs负电子亲和势阴极,利用数值计算方法研究了它的时间响应特性和量子效率特性。结果表明,当吸收区厚度L^0.2~1.5μm时,阴极的响应时间和量子效率均随L的增大而增大;尤其当L^1.1μm时响应时间达到10ps,量子效率达到12.5%~20%,迄今为止,与其他GaAs光电阴极相比,在相同光谱响应条件下,该响应速度是最高的。另外,在不同L下,获得了平均时间衰减常数τ'的函数分布和能够获得最短响应时间的最优系数因子β分布,为新型高速响应GaAs光电阴极的时间响应和量子效率优化提供了必要的理论基础和数据支持。

关键词： GaAs光电阴极 e指数内建电场最优系数因子时间响应

Correlation between the rock mass properties and maximum horizontal stress:A case study of overcoring stress measurements

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 39-48页

作者： peng Li Meifeng cai Shengjun Miao Yuan Li Yu Wang Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mines University of Science and Technology BeijingBeijing 100083China State Key Laboratory of Coal Resources and Safe Mining China University of Mining and TechnologyXuzhou 221116China

Understanding the mechanical properties of the lithologies is crucial to accurately determine the horizontal stress *** investigate the correlation between the rock mass properties and maximum horizontal stress,the three-dimensional(3D)stress tensors at 89 measuring points determined using an improved overcoring technique in nine mines in China were adopted,a newly defined characteristic parameter C_(ERP)was proposed as an indicator for evaluating the structural properties of rock masses,and a fuzzy relation matrix was established using the information distribution *** results indicate that both the vertical stress and horizontal stress exhibit a good linear growth relationship with *** is no remarkable correlation between the elastic modulus,Poisson's ratio and depth,and the distribution of data points is scattered and ***,there is no obvious relationship between the rock quality designation(RQD)and *** maximum horizontal stress σ_(H) is a function of rock properties,showing a certain linear relationship with the C_(ERP)at the same *** addition,the overall change trend of σ_(H) determined by the established fuzzy identification method is to increase with the increase of C_(ERP).The fuzzy identification method also demonstrates a relatively detailed local relationship betweenσ_H and C_(ERP),and the predicted curve rises in a fluctuating way,which is in accord well with the measured stress data.

关键词： overcoring stress measurements elastic modulus Poisson's ratio rock quality designation maximum horizontal stress fuzzy identification

宋代永州、邵州农业经济发展考析——从“湘南名郡,旧称甲永乙邵”说起

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河北大学学报（哲学社会科学版） 2014年第3期39卷 1-5,159页

作者：王菱菱彭志才河北大学宋史研究中心河北保定071002 江西省博物馆江西南昌330025

永州和邵州地处宋代西南部的边远地区,与唐朝时期相比,宋代永州和邵州人口得到增长,土地资源得到开发,粮食总量增加,体现了农业经济的迅速发展。"湘南名郡,旧称甲永乙邵"一说出自杨万里为永州知州张奭所作行状,是永州、邵州在荆湖南路... 详细信息

永州和邵州地处宋代西南部的边远地区,与唐朝时期相比,宋代永州和邵州人口得到增长,土地资源得到开发,粮食总量增加,体现了农业经济的迅速发展。"湘南名郡,旧称甲永乙邵"一说出自杨万里为永州知州张奭所作行状,是永州、邵州在荆湖南路区域农业经济发展中处于领先地位的体现。

关键词：宋代湘南名郡永州邵州农业经济发展

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经济史视角下的北宋潭州“分买珠子案”

怀化学院学报 2009年第6期28卷 53-55页

作者：彭志才云南大学中国经济史研究所云南昆明650091

北宋仁宗至和年间发生在潭州"分买珠子案"是一起地方官员因产生贪猥之心、违法分买客死商人珠子,却因法律对商人的合法权益加以保护而未能得逞的民事案件。这一个案,反映了商品与市场、交通发展、商业政策等经济史信息,体现了宋代财产... 详细信息

北宋仁宗至和年间发生在潭州"分买珠子案"是一起地方官员因产生贪猥之心、违法分买客死商人珠子,却因法律对商人的合法权益加以保护而未能得逞的民事案件。这一个案,反映了商品与市场、交通发展、商业政策等经济史信息,体现了宋代财产所有权、继承权等法律制度方面的时代特色。

关键词：潭州分买珠子案经济史时代特色

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WB法分析圆柱壳与声耦合问题

武汉理工大学学报 2009年第14期31卷 57-59页

作者：李志江彭伟才李鹏何锃华中科技大学土木工程与力学学院武汉430074

描叙了圆柱壳与声耦合系统建模技术的基本概念。根据WB法(Wave based method,简称WB法)的基本原理,将结构场变量和声压展开成波函数和特解函数的叠加。应用加权余量法将结构和声学边界条件以及结构与声耦合界面上的连续性条件转换成近... 详细信息

描叙了圆柱壳与声耦合系统建模技术的基本概念。根据WB法(Wave based method,简称WB法)的基本原理,将结构场变量和声压展开成波函数和特解函数的叠加。应用加权余量法将结构和声学边界条件以及结构与声耦合界面上的连续性条件转换成近似积分,推导出一组由代数方程表示的耦合模型。通过分析二维的算例表明这种预报技术计算量小且精度高,因此可应用到中频的分析。

关键词：中频响应结构与声耦合 Trefftz法数值预报技术

Establishment of human cerebral organoid systems to model early neural development and assess the central neurotoxicity of environmental toxins

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Neural Regeneration Research 2025年第1期20卷 242-252页

作者： Daiyu Hu Yuanqing Cao Chenglin cai Guangming Wang Min Zhou Luying peng Yantao Fan Qiong Lai Zhengliang Gao Fundamental Research Center Shanghai Yangzhi Rehabilitation Hospital(Shanghai Sunshine Rehabilitation Center)School of MedicineTongji UniversityShanghaiChina Institute of Geriatrics(Shanghai University) Affiliated Nantong Hospital of Shanghai University(The Sixth People’s Hospital of Nantong)Shanghai University School of MedicineNantongJiangsu ProvinceChina Shanghai Engineering Research Center of Organ Repair Shanghai University School of MedicineShanghaiChina Key Laboratory of Arrhythmias Ministry of EducationShanghai East HospitalSchool of MedicineTongji UniversityShanghaiChina

Human brain development is a complex process,and animal models often have significant *** address this,researchers have developed pluripotent stem cell-derived three-dimensional structures,known as brain-like organoids,to more accurately model early human brain development and *** enable more consistent and intuitive reproduction of early brain development,in this study,we incorporated forebrain organoid culture technology into the traditional unguided method of brain organoid *** involved embedding organoids in matrigel for only 7 days during the rapid expansion phase of the neural epithelium and then removing them from the matrigel for further cultivation,resulting in a new type of human brain organoid *** cerebral organoid system replicated the temporospatial characteristics of early human brain development,including neuroepithelium derivation,neural progenitor cell production and maintenance,neuron differentiation and migration,and cortical layer patterning and formation,providing more consistent and reproducible organoids for developmental modeling and toxicology *** a proof of concept,we applied the heavy metal cadmium to this newly improved organoid system to test whether it could be used to evaluate the neurotoxicity of environmental *** organoids exposed to cadmium for 7 or 14 days manifested severe damage and abnormalities in their neurodevelopmental patterns,including bursts of cortical cell death and premature *** exposure caused progressive depletion of neural progenitor cells and loss of organoid integrity,accompanied by compensatory cell proliferation at ectopic *** convenience,flexibility,and controllability of this newly developed organoid platform make it a powerful and affordable alternative to animal models for use in neurodevelopmental,neurological,and neurotoxicological studies.

关键词： cadmium cell death cell proliferation cortical development environmental toxins neural progenitor cells neurogenesis neurotoxicology organoids stem cells