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Analysis and Simulation of S-shaped Waveguide in Silicon-on-insulator

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Semiconductor Photonics and Technology 2004年第2期10卷 78-81页

作者： WANGZhang-tao FANZhong-cao XIAJin-song CHENShao-wu YuJinzhong StateKeyLaboratoryonIntegratedoptoelectronics InstituteofSemiconductorsChineseAcademyofSciencesBeijing100083CHN

The simulation and analysis of S-shaped waveguide bend are *** radius larger than 30 mm assures less than 0.5 dB radiation loss for a 4-μm-wide silicon-on-insulator waveguide bend with 2-μm etch *** angle greater than 20° provides negligible crosstalk (<-30 dB) and very low insertion *** reduction in bend radius and intersection angle is at the cost of the degradation of characteristics of bent waveguide and intersecting waveguide, respectively.

关键词： BPM S-shaped bend Silicon-on-insulator

A 400 MHz Low Noise Amplifier at Cryogenic Temperature for Superconductor Filter System

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Journal of Electronic Science and Technology of China 2007年第3期5卷 230-233页

作者： Guo-Bin Wang Xiao-Ping Zhang Bi-song cao wifla Department of Physics Tslnghua University Beijing 100084 China

A cryogenic low noise amplifier （LNA） using Agilent high electron mobility transistor （HEMT） for 380 MHzto 480 MHz is designed and fabricated, and the excellent cryogenic performance in superconducting receiver front-end for communication system is achieved. A special input impedance matching topology is implemented to provide low noise figure （NF） and good input matching in this cryogenic LNA design. The measurement results show that the NF is within 0.25 dB from the minimum NF of a single transistor, the power gain is above 20 dB, the flatness is within 1 dB, and the maximum input return loss is lower than -20 dB in bandwidth.

关键词： Cryogenic low noise amplifier HTS fiter magnetic core inductor with high Q value superconductor receiver front-end.

Electronegativity-assisted optimized electronic structure of functionalized-Pt catalysts for boosting oxygen reduction kinetics

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Rare Metals 2024年第5期43卷 1965-1976页

作者： Jin Long Kai-Wen Zhuang Wei Liao Yan An Bin Wang Chen-Zhong Wu Jian-Xin cao Qing Wang Jun-song Chen Qing-Mei Wang Guizhou University Key Laboratory of Green Chemical and Clean Energy Technology School of Chemistry and Chemical EngineeringGuizhou UniversityGuiyang 550025China Guizhou University Engineering Research Center of Effcient Utilization for Industrial Waste Guizhou UniversityGuiyang 550025China Institute of Dual-Carbon and New Energy Technology Innovation and Development of Guizhou Province Guiyang 550025China Department of Dermatology West China HospitalSichuan UniversityChengdu610041China Institute for Catalysis Hokkaido UniversitySapporo 001-0021Japan School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 611731China Interdisciplinary Materials Research Center Institute for Advanced StudyChengdu UniversityChengdu 610106China

Opportunity to harmonize aspects of oxygen reduction reaction(ORR)performance and structure,and morphology,as well as composition,is urgent for the commercialization of proton exchange membrane fuel ***,we demonstrate the design and synthesis of a functionalized-supported-Pt catalyst(Pt@HNC)featuring a hollow nitrogen-modified dodecahedral carbon substrate obtained by a stress-induced-shrink tailoring *** as-obtained Pt@HNC catalyst possesses enhanced ORR per-formance,in particular with half-wave potential,mass activity(MA)and specific activity,which greatly exceed the commercial Pt/*** density functional theory(DFT)calculations further confirmed that the charge redistribution induced by the electronegativity differences improved the electron interaction between Pt and HNC *** optimized electronic structure of Pt weakens the reaction energy barrier on the Pt@HNC surface and adsorption of^(*)OH species,thus cooperatively improving the intrinsic activity toward ***,our work indeed provides a guide for the future design of functional nanomaterials in the field of catalysts and clean energy.

关键词： Proton exchange membrane fuel cell(PEMFC) Oxygen reduction catalysis Supported Pt-based catalyst Stability

Breeding exceptionally fragrant soybeans for soy milk with strong aroma

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Journal of Integrative Plant Biology 2024年第4期66卷 642-644页

作者： Hongtao Xie Minglei song Xuesong cao Qingfeng Niu Jianhua Zhu Shasha Li Xin Wang Xiaomu Niu Jian-Kang Zhu Bellagen Biotechnology Co.Ltd. Jinan 250000China Institute of Advanced Biotechnology and School of Life Sciences Southern University of Science and TechnologyShenzhen 518055China School of Life Sciences Anhui Agricultural UniversityHefei 230036China Shandong Normal University Jinan 250000China

Soybean(Glycine max(L.)Merr.)is a major source of vegetable protein and oil in human diet and animal *** seeds have been extensively used in various food products and *** quality,particularly the aroma,affects cooking and eating,and ultimately influences consumer *** milk is particularly popular in China and has been gaining popularity in many other countries in the world.

关键词： exceptional soybean cooking

Overstory functional groups indicate the legacy of land use in a secondary tropical forest in southwestern China

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Journal of Forestry Research 2024年第5期35卷 91-105页

作者： Yun Deng Wenfu Zhang Min cao Jinlong Dong Hui Chen Xiaobao Deng Jiajia Liu Xiaoyang song Shangwen Xia Liqing Sha Shengdong Yuan Luxiang Lin CAS Key Laboratory of Tropical Forest Ecology Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesMengla 666303People’s Republic of China Center for Plant Ecology Core Botanical GardensChinese Academy of SciencesMengla 666303People’s Republic of China National Forest Ecosystem Research Station at Xishuangbanna Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesMengla 666303People’s Republic of China Department of Life Sciences Fudan UniversityShanghai 570228People’s Republic of China Department of Life Sciences University of Chinese Academy of SciencesBeijing 100049People’s Republic of China

Anthropogenic disturbances are widespread in tropical forests and influence the species composition in the ***,the impacts of historical disturbance on tropical forest overstory recovery are unclear due to a lack of disturbance data,and previous studies have focused on understory *** this study,the purpose was to deter-mine the influence of historical disturbance on the diver-sity,composition and regeneration of overstory species in present *** the 20-ha Xishuangbanna tropical sea-sonal rainforest dynamics plot in southwestern China,the historical disturbance boundaries were delineated based on panchromatic photographs from *** that drove species clustering in the overstory layer(DBH≥40 cm)were analyzed and the abundance,richness and composition of these species were compared among different tree groups based on multiple regression tree *** coefficient of variation of the brightness value in historical panchro-matic photographs from 1965 was the primary driver of spe-cies clustering in the overstory *** abundance and richness of overstory species throughout the regeneration process were similar,but species composition was always *** the proportion of large-seeded and vigorous-sprouting species showed no significant differ-ence between disturbed and undisturbed forests in the tree-let layer(DBH<20 cm),the difference became significant when DBH *** findings highlight that historical disturbances have strong legacy effects on functional group composition in the overstory and the recovery of overstory species was *** group composi-tion can better indicate the dynamics of overstory species replacement during secondary succession.

关键词： Historical disturbance Legacy effects Secondary forests Overstory species Functional groups

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极重度高胆红素血症供肝成功移植1例

实用器官移植电子杂志 2024年第2期12卷 136-138页

作者：廖吉祥董建辉苏庆东曹嵩高照刘旭阳杨东阁孙煦勇广西医科大学第二附属医院移植医学中心广西器官移植临床医学研究中心广西器官捐献与移植研究重点实验室广西南宁530007 中国人民解放军联勤保障部队第九二三医院器官移植科广西南宁530021

目前肝移植已成为治疗各种终末期肝病最有效的方法,然而,供肝短缺是制约肝移植发展最重要的原因,为缓解严峻的供需矛盾,其有效途径是扩大边缘供肝的利用。欧洲移植手册将供体总胆红素>51.3μmol/L的供肝纳为边缘供肝,移植后可能发生原... 详细信息

目前肝移植已成为治疗各种终末期肝病最有效的方法,然而,供肝短缺是制约肝移植发展最重要的原因,为缓解严峻的供需矛盾,其有效途径是扩大边缘供肝的利用。欧洲移植手册将供体总胆红素>51.3μmol/L的供肝纳为边缘供肝,移植后可能发生原发性无功能(primary nonfunction,PNF)或早期肝功能恢复不良等[1].

关键词：终末期肝病总胆红素供肝肝移植 PNF 重度高胆红素血症原发性无功能

Elimination of cracks in stainless steel casings via 3D printed sand molds with an internal topology structure

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China Foundry 2024年第4期21卷 319-326页

作者： Jun-hang Xu Bao-zhi Li Zhao-wei song Yun-bao Gao Jing-ming Li Yu Wang Qiu-lin Wen Heng cao Zeng-rui Wang National Key Laboratory of Advanced Casting Technologies Shenyang 110022China Shenyang Research Institute of Foundry Co. Ltd.CAMShenyang 110022China

The important supporting component in a gas turbine is the casing,which has the characteristics of large size,complex structure,and thin *** the context of existing 3DP sand casting processes,casting crack defects are prone to *** leads to an increase in the scrap rate of casings,causing significant resource ***,the presence of cracks poses a significant safety hazard after the casings are put into *** generation of different types of crack defects in stainless steel casings is closely related to casting stress and the high-temperature concession of the sand ***,the types and causes of cracks in stainless steel casing products,based on their structural characteristics,were systematically *** sand molds with different internal topology designs were printed using the 3DP technology to investigate the impact of sand mold structures on high-temperature *** optimal sand mold structure was used to cast casings,and the crack suppression effect was verified by analyzing its eddy current testing *** experimental results indicate that the skeleton structure has an excellent effect on suppressing cracks in the *** research holds important theoretical and engineering significance in improving the quality of casing castings and reducing production costs.

关键词： gas turbine casing crack defects 3D printed sand mold topological structure high-temperature concession

Drug-eluting bead transarterial chemoembolization as neoadjuvant therapy pre-liver transplantation for advanced-stage hepatocellular carcinoma

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World Journal of Gastrointestinal Oncology 2024年第6期16卷 2476-2486页

作者： Zhao-Dan Ye Li Zhuang Meng-Chen song Zhe Yang Wu Zhang Jing-Feng Zhang Guo-Hong cao Department of Radiology Shulan(Hangzhou)Hospital Affiliated to Zhejiang Shuren University Shulan International Medical CollegeHangzhou 310022Zhejiang ProvinceChina Department of Hepatobiliary and Pancreatic Surgery Shulan(Hangzhou)Hospital Affiliated to Zhejiang Shuren University Shulan International Medical CollegeHangzhou 310022Zhejiang ProvinceChina Diagnostic and Therapeutic Center for Difficult Diseases Hwa Mei HospitalUniversity of Chinese Academy of SciencesNingbo 315010Zhejiang ProvinceChina

BACKGROUND The objectives of this study were to assess the safety and efficacy of drug-eluting bead transarterial chemoembolization(DEB-TACE)as neoadjuvant therapy before liver transplantation(LT)for advanced-stage hepatocellular carcinoma(HCC)and to analyze the prognostic *** To determine whether DEB-TACE before LT is superior to LT for advanced-stage *** A total of 99 individuals diagnosed with advanced HCC were studied *** participants were categorized into the following two groups based on whether they had received DEB-TACE before LT:DEB-TACE group(n=45)and control group(n=54).The participants were further divided into two subgroups based on the presence or absence of segmental portal vein tumor thrombus(PVTT).The DEB-TACE group consisted of two subgroups:Group A(n=31)without PVTT and group B(n=14)with *** control group also had two subgroups:Group C(n=37)without PVTT and group D(n=17)with *** on patient demographics,disease characteristics,therapy response,and adverse events(AEs)were *** overall survival(OS)and recurrence-free survival(RFS)rates were assessed using Kaplan-Meier *** and multivariate Cox regression analyses were conducted to determine the parameters that were independently related to OS and *** The DEB-TACE group exhibited an overall response rate of 86.6%.Following therapy,there was a significant decrease in the median alpha-fetoprotein(AFP)level(275.1 ng/mL vs 41.7 ng/mL,P<0.001).The main AE was post-embolization *** 2-year rates of RFS and OS were significantly higher in the DEB-TACE group than in the control group(68.9%vs 38.9%,P=0.003;86.7%vs 63.0%,P=0.008).Within the subgroups,group A had higher 2-year rates of RFS and OS compared to group C(71.0%vs 45.9%,P=0.038;83.8%vs 62.2%,P=0.047).The 2-year RFS rate of group B was markedly superior to that of group D(64.3%vs 23.5%,P=0.002).Results from multivariate analyses showed that pre-LT DEB-TACE[hazard ratio(HR)=

关键词： Hepatocellular carcinoma Liver transplantation Portal vein tumor thrombus Drug-eluting bead transarterial chemoembolization Neoadjuvant treatment

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院级器官捐献工作体系化建设经验

中华器官移植杂志 2024年第2期45卷 110-114页

作者：廖吉祥董建辉苏庆东曹嵩高照刘旭阳杨东阁孙煦勇广西医科大学第二附属医院移植医学中心广西器官移植临床医学研究中心广西器官捐献与移植研究重点实验室南宁530007 中国人民解放军联勤保障部队第九二三医院器官移植科南宁530021

2010年开展器官捐献试点工作以来,特别是2015年自愿捐献做为器官移植唯一合法来源以后,我国器官捐献事业得到高质量快速发展,器官捐献例数于2016年超过巴西,位列全球第二。目前我国初步建立和完善了工作体系和标准流程,取得了显著成效,... 详细信息

2010年开展器官捐献试点工作以来,特别是2015年自愿捐献做为器官移植唯一合法来源以后,我国器官捐献事业得到高质量快速发展,器官捐献例数于2016年超过巴西,位列全球第二。目前我国初步建立和完善了工作体系和标准流程,取得了显著成效,并且得到国际社会的广泛认可[1]。然而,器官捐献与移植事业发展不平衡不充分和人民群众对移植服务的需求之间的矛盾仍然较为严峻,据中华人民共和国国家卫生健康委员会最新数据显示:2022年我国百万人口器官捐献率仅为3.98,与发达的欧美国家差距甚远。如何建设组织架构科学、运行规范且高效的器官捐献获取组织(Organ Procurement Organization,OPO)是我国各器官捐献团队目前面临的最大挑战。虽然各省、各地区甚至各医院的捐献管理模式不尽相同,但在OPO组织架构建设及运行管理等方面应有相似之处。下面就本院器官捐献工作的相关经验进行总结,也希望能给其他OPO建设提供一些参考。

关键词：器官捐献器官移植体系化建设数据显示自愿捐献标准流程组织架构显著成效