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不同医院之间全髋或全膝关节置换术病人针对肺栓塞的Ct检查的应用与收益差异有限

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国际医学放射学杂志 2017年第1期 94-95页

作者： K.K.Kumamaru H.Kumamaru B.t.Bateman J.Gronsbell t.cai J.Liu 耿立娜 Department of Medicine Brigham and Women ’s Hospital & Harvard Medical School

摘要目的评估美国不同医院之间全髋置换术(tHR)或全膝关节置换术(tKR)住院病人肺动脉Ct血管成像(CtPA)应用和收益的差异。材料与方法纳入Premier研究

关键词：全膝关节 CtPA Ct 置换术肺栓塞全髋病人差异收益财政管理

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多参数MRI评估慢性肾病和肾纤维化的价值

国际医学放射学杂志 2023年第5期 622-622页

作者： C.Hua L.Qiu L.Zhou Y.Zhuang t.cai B.Xu 许振华

摘要目的确定评估慢性肾脏病（CKD）和肾间质纤维化（IF）的最佳MRI参数。方法前瞻性纳入43例CKD病人和20例正常对照组。CKD组根据病理检查结果分为轻度和

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Life-Cycle Bearing Capacity for Pre-Stressed t-beams Based on Full-Scale Destructive test

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Structural Durability & Health Monitoring 2025年第1期19卷 145-166页

作者： Yushan Ye tao Gao Liankun Wang Junjie Ma Yingchun cai Heng Liu Xiaoge Liu China Construction Seventh Engineering Division Corp. Ltd.Zhengzhou450004China School of Water Conservancy and transportation Zhengzhou UniversityZhengzhou450001China

to investigate the evolution of load-bearing characteristics of pre-stressed beams throughout their service life and to provide a basis for accurately assessing the actual working state of damaged pre-stressed concrete t-beams,destructive tests were conducted on full-scale pre-stressed concrete *** on the measurement and ana-lysis of beam deﬂection,strain,and crack development under various loading levels during the research tests,combined with the veriﬁcation coefﬁcient indicators speciﬁed in the codes,the veriﬁcation coefﬁcients of bridges at different stages of damage can be *** results indicate that the t-beams experience complete,incom-plete linear,and non-linear stages during the destructive test *** the complete linear elastic stage,both the deﬂection and bottom strain veriﬁcation coefﬁcients comply with the speciﬁcations,indicating a good structural load-bearing capacity no longer adheres to the code’s *** the non-linear stage,both coefﬁcients exhi-bit a sharp increase,resulting in a further decrease in the structure’s load-bearing *** to the pro-visions of the current code,the beam can be in the incomplete linear stage when both values fall within the code’s speciﬁed *** strain veriﬁcation coefﬁcient sourced from the compression zone at the bottom of theﬂange is not recommended for assessing the bridge’s load-bearing capacity.

关键词： Pre-stressed t-beams whole process destructive test bearing capacity veriﬁcation coefﬁcient

Challenges in the Mining and Utilization of Deep Mineral Resources

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Engineering 2017年第4期3卷 432-433页

作者： Meifeng cai Edwin t. Brown Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mines University of Science and Technology Beijing Beijing 100083 China Colder Associates Pty. Ltd. Brisbane QLD 4064 Australia the University of Queensland Brisbane OLD 4072 Australia

As Mote et al. [ 1 ] have noted in this journal, advances in the fields of engineering science and technology have played an indispensable role in shaping the social and economic development of humankind. However,

关键词： Mineral resources

Scavenging of reactive oxygen and nitrogen species with nanomaterials

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Nano Research 2018年第10期11卷 4955-4984页

作者： Carolina A. Ferreira Dalong Ni Zachary t. Rosenkrans Weibo cai Department of Radiology University of Wisconsin-Madison Madison W153705 USA

Reactive oxygen and nitrogen species （RONS） are essential for normal physiological processes and play important roles in cell signaling, immunity, and tissue homeostasis. However, excess radical species are implicated in the development and augmented pathogenesis of various diseases. Several antioxidants may restore the chemical balance, but their use is limited by disappointing results of clinical trials. Nanoparticles are an attractive therapeutic alternative because they can change the biodistribution profile of antioxidants, and possess intrinsic ability to scavenge RONS. Herein, we review the types of RONS, how they are implicated in several diseases, and the types of nanoparticles with inherent antioxidant capability, their mechanisms of action, and their biological applications.

关键词： mnanomaterials reactive oxygen species(ROS) reactive nitrogen species ROS scavenging antioxidant nanoparticles

Pre-activated macrophage membrane-encased aggregationinduced emission featuring nanoparticles:a novel possibility for tuberculosis treatment

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Signal transduction and targeted therapy 2024年第7期9卷 2848-2850页

作者： Qiang cai Yihao tian Quazi t.H.Shubhra Department of Neurosurgery Renmin Hospital of Wuhan UniversityWuhanChina Department of Human Anatomy and Histology and Embryology School of Basic Medical SciencesWuhan UniversityWuhanChina Institute of Chemistry University of Silesia in KatowiceSzkolna 9KatowicePoland

In a recent study published in Nature Nanotechnology,Li et *** the synthesis of a novel photosensitizer with unique aggregation-induced emission(AIE)characteristics.1 they microencapsulated this photosensitizer inside engineered nanoparticles(NPs)coated with pre-activated macrophage cell membranes(CMs),an innovative approach marking a significant leap in nanomedicine by offering a pathway to potent tuberculosis(tB)treatments that bypass antibiotic resistance with unparalleled precision.

关键词： tuberculosis macrophage aggregation

Influence of bias on properties of carbon films deposited by MCECR plasma sputtering method

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中国有色金属学会会刊：英文版 2004年第Z1期14卷 251-254页

作者： cai Chang-long DIAO Dong-feng S.Miyake t.Matsumoto Department of Photoelectrical Engineering Xi''an Institute of Technology Xi''an 710032 China School of Mechanical Engineering Xi''an Jiaotong University Xi''an 710049 China Joining and Welding Research Institute Osaka University Osaka 567-0047 Japan Joining and Welding Research Institute Osaka University Osaka 567-0047 Japan

the mirror-confinement-type electron cyclotron resonance(MCECR) plasma source has high plasma density and high electron temperature. It is quite useful in many plasma processing, and has been used for etching and thin-film deposition. the carbon films with 40 nm thickness were deposited by MCECR plasma sputtering method on Si, and the influence of substrate bias on the properties of carbon films was studied. the bonding structure of the film was analyzed by the X-ray photoelectron spectroscopy(XPS), the tribological properties were measured by the pin-on-disk(POD) tribometer, the nanohardness of the films was measured by the nanoindenter, and the deposition speed and the refractive index were measured by the ellipse meter. the better substrate bias was obtained, and the better properties of carbon films were obtained.

关键词： MCECR plasma sputtering carbon films substrate bias films properties

Parameter identification and blanking simulations of DP1000 and Al6082-t6 using Lemaitre damage model

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Advances in Manufacturing 2021年第3期9卷 457-472页

作者： Sheng cai Lin Chen Department of Vehicle Engineering College of EngineeringChina Agricultural UniversityBeijing100083People’s Republic of China CW Bearing GmbH 22113HamburgGermany

this work provides numerical and experimental investigations of blanking process,where the shear-enhanced Lemaitre’s damage model is fully characterized and successfully applied in blanking process to predict the cutting force and cutting edge geometry under different blanking process *** high strength steel DP1000 and an aluminum alloy Al6082-t6 are selected for series of *** obtain the damage parameters in Lemaitre’s damage model the flat rectangular notched specimens tensile test was conducted and the inverse parameter identification procedure was *** characterizing the crack closure parameter h in the shear enhanced Lemaitre’s damage model,an in-plane torsion test with novel specimen design was *** finite element model(FEM)of this test was established with the minimum mesh size of 0.01 mm which was consistent with the minimum mesh size in the shear zone of the FEM for blanking process *** longitudinal strain distributions of four kinds of initial notch radius or central-hole specimen were measured and compared with simulation results to validate the FEMs for these four *** analysis of blanking of a circular work piece also was performed under three *** effects of blanking conditions on sheared part morphology were *** triaxiality distribution of the blank sheet was revealed taking advantage of the successfully established *** availability of the testing method and the determination method of the parameters was investigated.

关键词： Blanking Lemaitre damage model Stress triaxiality Finite element model(FEM)

A LINE SEARCH FILtER INEXACt SQP MEtHOD FOR NONLINEAR EQUALItY CONStRAINED OPtIMIZAtION

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Journal of Systems Science & Complexity 2012年第5期25卷 950-963页

作者： Li cai Detong ZHU Department of Mathematics Shanghai Normal University College of Business Shanghai Normal University

this paper proposes an inexact SQP method in association with line search filter technique for solving nonlinear equality constrained optimization. For large-scale applications, it is expensive to get an exact search direction, and hence the authors use an inexact method that finds an approximate solution satisfying some appropriate conditions. the global convergence of the proposed algorithm is established by using line search filter technique. the second-order correction step is used to overcome the Maratos effect, while the line search filter inexact SQP method has q-superlinear local convergence rate. Finally, the results of numerical experiments indicate that the proposed method is efficient for the given test problems.

关键词： Constrained optimization convergence filter method inexact method maratos effect.

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