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A new chain-like heteropolytungstate formed by Keggin cluster units:Synthesis and structure of[H2bpy]3[SiMnW(11)O(39)].1.25H2O

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Chinese Chemical Letters 2007年第1期18卷 81-84页

作者： Jing xin Meng Ying Ma xin xin Xu Yang guang li En Bo Wang Key Laboratory of Polyoxometalate Science of Ministry of Education Department of Chemistry Northeast Normal University Ren Min Street No.5268 Changchun Jilin 130024 PR China

A new heteropolytungstate, [H2bpy]3[SiMnW11O39]· 1.25H2O （1）, has been prepared under mild hydrothermal conditions and structurally characterized by single crystal X-ray diffraction. It is the first characterized compound containing ID zigzag chain of transition metal substituted Keggin heteropolytungstate, which is connected through a common oxygen atom. The elemental analysis and IR of it are also described.

关键词： Heteropolytungstate Keggin clusters Zigzag chain

Trehalose attenuates abdominal aortic aneurysm formation by inducing autophagy in smooth muscle cells

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Journal of Geriatric Cardiology 2023年第3期20卷 214-222页

作者： Bo JIANG Xuan li Mo WANG guang-xin li Peng-Wei REN Yu-Qi WANG Shi-Jie xin ling-Feng QIN Department of Vascular Surgery the First Hospital of China Medical UniversityKey Laboratory of PathogenesisPrevention and Therapeutics of Aortic AneurysmShenyangChina Department of Surgery Yale School of MedicineNew HavenCTUSA Department of Breast and Thyroid Surgery Peking University Shenzhen HospitalShenzhenChina Yale Stem Cell Center Yale School of MedicineNew HavenCTUSA Department of Biomedical Engineering Yale UniversityNew HavenCTUSA

BACKGROUND Trehalose is a naturally occurring disaccharide,which has been identified as an autophagy inducer and ex-hibits protective effect in cardiovascular diseases such as myocardial infraction and ***,the functional role of trehalose in abdominal aortic aneurysm(AAA)remains *** To study the effect of trehalose in AAA,trehalose(1 g/kg per day)were given for 14 continuous days in a mouse model of elastase-induced abdominal aortic *** day 14,ultrasound was performed to measure aortic diameter before the abdominal aortas were harvested and processed for further ***-Van Gieson staining and TUNEL staining were performed on paraffin sections to evaluate vascular histology and apoptosis,immunofluorescence staining and Western-blot were performed to evaluate expression of autophagy *** Echocardiography and in situ pictures demonstrated that trehalose attenuated infrarenal aorta ***-Van Gieson staining showed elastin degradation was improved in trehalose-treated *** with vehicle-treated mice,trehalose treatment restored smooth muscle cell contractile phenotype with increasedα-SMA,Calponin and Myh11 ***,trehalose also attenuated cell apoptosis and leukocytes ***,trehalose induced autophagy with decrease SQSTM1/p62 accumulation,increased lamp2 expression and LC3B *** Trehalose attenuated AAA progression with decreased inflammation and restored SMC contractile phenotype by inducing *** results demonstrated the therapeutic potential of trehalose in AAA.

关键词： abdominal aneurysm protective

电动汽车电机驱动系统分布参数对传导电磁干扰影响研究

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北京理工大学学报 2016年第9期36卷 935-939页

作者：翟丽张新宇李广召北京理工大学机械与车辆学院北京100081

构建了电动汽车电机驱动系统传导电磁干扰测试平台,研究电动汽车电机驱动系统带载工况下分布参数对传导电磁干扰的影响.通过测试比较电机驱动系统带载工况下和空载工况下产生的传导电磁干扰,分析系统高低频差模干扰和共模干扰的传播路径... 详细信息

构建了电动汽车电机驱动系统传导电磁干扰测试平台,研究电动汽车电机驱动系统带载工况下分布参数对传导电磁干扰的影响.通过测试比较电机驱动系统带载工况下和空载工况下产生的传导电磁干扰,分析系统高低频差模干扰和共模干扰的传播路径,建立相应的等效电路,在频域内分析了传导电磁干扰产生的机理和分布参数对传导电磁干扰的影响.测试结果表明,适当增大电机控制器内部功率器件对地分布电容和直流动力线缆对地分布电容可减小系统产生的高频传导电磁干扰.

关键词：电动汽车电机驱动系统传导电磁干扰分布参数

Surgical management of large and giant intracavernous and paraclinoid aneurysms

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Chinese Medical Journal 2008年第12期121卷 1061-1064页

作者： XU Bai-nan SUN Zheng-hui JIANG Jin-li WU Chen ZHOU Ding-biao YU xin-guang li Bao-min Department of Neurosurgery General Hospital of People's Liberation Army Beijing 100853 China

Background Due to their location, large and giant intracavernous and paraclinoid aneurysms remain a challenge for vascular neurosurgeons, We identified characteristics, surgical indications and treatment strategies of large and giant intracavernous and paraclinoid aneurysms in 36 patients.Methods The pterional approach was routinely used. The cervical internal carotid artery was exposed for proximal control of parent vessel and retrograde suction decompression. Paraclinoid aneurysms were directly clipped, intracavernous pseudoaneurysm was repaired and the intracavernous aneurysms were trapped with extracranial-intracranial bypass of saphenous vein graft. Intraoperative electroencephalogram （EEG） and somatosensory evoked potential （SSEP） monitoring were used to detect cerebral ischemia during the temporary occlusion of parent arteries. Microvascular Doppler ultrasonography was used to assess blood flow of the parent and branch vessels. Endoscopy was helpful particularly in dealing with internal carotid artery posterior wall aneurysms. Postoperative digital subtraction angiography （DSA） was performed in 33 of the 36 patients.Results Thirty-two paraclinoid aneurysms were directly clipped, 1 intracavernous pseudoaneurysm was repaired and the other 3 intracavernous aneurysms were trapped with revascularization. Except for two patients who died in the early postoperative stage, 34 patients＇ follow-up was 6-65 months （mean 10 months） and a Glasgow Outcome Scale score of 4 to 5 at discharge. At the 6-month follow-up examination, Rankin Outcome Scale scores were 0 to 2 in 32 patients. EEG and SSEP monitoring changed in six patients. Twelve clips were readjusted when insufficient blood flow in parent and branch vessels was detected. Three posterior wall aneurysms were clipped.Conclusions Intracavernous aneurysms not amenable to endovascular treatment should be treated surgically and surgical treatment is the first option for paraclinoid aneurysms. The temporary parent v

关键词： large and giant aneurysm intracavernous paraclinoid bypass surgical management clip

Defect Engineering:Can it Mitigate Strong Coulomb Effect of Mg^(2+)in Cathode Materials for Rechargeable Magnesium Batteries?

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Nano-Micro Letters 2025年第1期17卷 135-159页

作者： Zhengqing Fan Ruimin li xin Zhang Wanyu Zhao Zhenghui Pan Xiaowei Yang School of Chemistry and Chemical Engineering Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China School of Chemistry and Chemical Engineering Taiyuan University of TechnologyTaiyuan 030024People’s Republic of China School of Materials Science and Engineering Tongji UniversityShanghai 201804People’s Republic of China

Rechargeable magnesium batteries(RMBs)have been considered a promising“post lithium-ion battery”system to meet the rapidly increasing demand of the emerging electric vehicle and grid energy storage ***,the sluggish diffusion kinetics of bivalent Mg^(2+)in the host material,related to the strong Coulomb effect between Mg^(2+)and host anion lattices,hinders their further development toward practical *** engineering,regarded as an effective strategy to break through the slow migration puzzle,has been validated in various cathode materials for *** this review,we first thoroughly understand the intrinsic mechanism of Mg^(2+)diffusion in cathode materials,from which the key factors affecting ion diffusion are further ***,the positive effects of purposely introduced defects,including vacancy and doping,and the corresponding strategies for introducing various defects are *** applications of defect engineering in cathode materials for RMBs with advanced electrochemical properties are also ***,the existing challenges and future perspectives of defect engineering in cathode materials for the overall high-performance RMBs are described.

关键词： Rechargeable magnesium battery Sluggish diffusion kinetic Defect engineering Cathode materials Ion migration

Wafer‑Scale Vertical 1D GaN Nanorods/2D MoS_(2)/PEDOT:PSS for Piezophototronic Effect‑Enhanced Self‑Powered Flexible Photodetectors

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Nano-Micro Letters 2025年第3期17卷 102-116页

作者： xin Tang Hongsheng Jiang Zhengliang lin Xuan Wang Wenliang Wang Guoqiang li State Key Laboratory of Luminescent Materials and Devices South China University of TechnologyGuangzhou 510640People’s Republic of China Department of Electronic Materials School of Materials Science and EngineeringSouth China University of TechnologyGuangzhou 510640People’s Republic of China

van der Waals(vdW)heterostructures constructed by lowdimensional(0D,1D,and 2D)materials are emerging as one of the most appealing systems in next-generation flexible ***,hand-stacked vdW-type photodetectors are not compatible with large-areaarray fabrication and show unimpressive performance in self-powered ***,vertical 1D GaN nanorods arrays(NRAs)/2D MoS_(2)/PEDOT:PSS in wafer scale have been proposed for self-powered flexible photodetectors arrays *** as-integrated device without external bias under weak UV illumination exhibits a competitive responsivity of 1.47 A W^(−1)and a high detectivity of 1.2×10^(11)Jones,as well as a fast response speed of 54/71μs,thanks to the strong light absorption of GaN NRAs and the efficient photogenerated carrier separation in type-II ***,the strain-tunable photodetection performances of device have been ***,the device at−0.78%strain and zero bias reveals a significantly enhanced photoresponse with a responsivity of 2.47 A W^(−1),a detectivity of 2.6×10^(11)Jones,and response times of 40/45μs,which are superior to the state-of-the-art self-powered flexible *** work presents a valuable avenue to prepare tunable vdWs heterostructures for self-powered flexible photodetection,which performs well in flexible sensors.

关键词： Vertical nanorod arrays van der Waals heterostructure Piezophototronic effect Self-powered photodetection Flexible sensors

A reproducible and efficient microinjection method for unfertilized eggs of amphioxus Branchiostoma belcheri

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A reproducible and efficient microinjection method for unfer...

Vector meson's spin alignments in high energy reactions

遗传资源的保护和开发利用——2012年中国青年遗传学家论坛

作者： xin liu,guang li,Feng Jun,Xi Yang and Yiquan Wang* School of life Sciences,Xiamen University,China 361005,

Amphioxus is a promising model animal for studying the evolutionary and developmental mechanisms of *** a new model organism,many techniques used in other well-developed animals are needed to be introduced into *** them, microinjection is one of the most efficient techniques for gene expression manipulation,and thus is particularly under *** this technique has been exploited in

关键词： Amphioxus microinjection β-actin promoter gene expression development

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 5-20页

作者： Jin-Hui Chen Zuo-Tang liang Yu-Gang Ma xin-li Sheng Qun Wang Key Laboratory of Nuclear Physics and Ion-beam Application (MoE) Institute of Modern PhysicsFudan University Institute of Frontier and Interdisciplinary Science Key Laboratory of Particle Physics and Particle Irradiation (MOE)Shandong University INFN-Firenze Department of Modern Physics University of Science and Technology of China School of Mechanics and Physics Anhui University of Science and Technology

The global spin alignment of vector mesons has been observed by the STAR collaboration at the Relativistic Heavy Ion Collider （RHIC） at Brookhaven National Laboratory （BNL）.It provides a unique opportunity to probe the correlation between the polarized quark and antiquark in the strongly coupled quark-gluon plasma （sQGP） produced in relativistic heavy ion collisions,opening a new window to explore the properties of s *** addition,spin alignments of vector mesons have also been observed in other high-energy particle collisions such as e+e-annihilations at high energies where hadron production is dominated by quark fragmentation *** results obtained are quite different from those obtained in heavy ion collisions where quark coalescence/combination mechanism dominates suggesting strong dependence on hadronization *** comprehensive studies in different hadronization processes are *** this article,we present a brief review of theoretical and experimental advances in the study of vector meson’s spin alignments in a variety of high-energy particle collisions,with emphasis on hadronization mechanisms.

关键词： vector meson spin alignment global polarization relativistic heavy ion collisions fragmentation

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基于滑模变结构的矿用变频器矢量控制研究

煤炭技术 2017年第5期36卷 232-234页

作者：刘建成官鑫李光新新疆工业职业技术学院乌鲁木齐830022

为提高矿井提升机变频器调速系统的响应速度和控制精度,提出了一种基于滑模变结构的矿用变频器矢量控制策略。介绍了滑模变结构的基本原理和设计了滑模速度控制器。该控制策略在煤矿异步电机转子磁链定向矢量控制的基础上将滑模变结构... 详细信息

为提高矿井提升机变频器调速系统的响应速度和控制精度,提出了一种基于滑模变结构的矿用变频器矢量控制策略。介绍了滑模变结构的基本原理和设计了滑模速度控制器。该控制策略在煤矿异步电机转子磁链定向矢量控制的基础上将滑模变结构控制器应用于矿井提升机的控制系统,在电机参数变化和负载扰动时都具有较好的鲁棒性。最后建立了仿真模型,验证了所提控制策略的可行性和有效性。

关键词：矿用变频器滑模变结构矢量控制鲁棒性