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China Ocean Engineering 2023年第1期37卷 73-84页

作者： ZHANG Pu-yang QI Xin wei yu-mo ZHANG Sheng-wei LE Cong-huan DING Hong-yan State Key Laboratory of Hydraulic Engineering Simulation and Safety Tianjin UniversityTianjin 300072China School of Civil Engineering Tianjin UniversityTianjin 300072China

The three-bucket jacket foundation is a new type of foundation for offshore wind turbine that has the advantages of fast construction speed and suitability for deep water. The study of the hoisting and launching process is of great significance to ensure construction safety in actual projects. In this paper, a new launching technology is proposed that is based on the foundation of the three-bucket jacket for offshore wind turbine. A complete time domain simulation of the launching process of three-bucket jacket foundation is carried out by a theoretical analysis combined with hydrodynamic software moses. At the same time, the effects of different initial air storage and sea conditions on the motion response of the structure and the hoisting cable tension are studied. The results show that the motion response of the structure is the highest when it is lowered to 1.5 times the bucket height. The natural period of each degree of freedom of the structure increases with the increase of the lowering depth. The structural motion response and the hoisting cable tension vary greatly in the early phases of Stages Ⅰ and Ⅲ, smaller in Stage Ⅱ, and gradually stabilize in the middle and late phases of Stage Ⅲ.

关键词： three-bucket jacket foundation time domain simulation hoisting construction motion response offshore wind turbine

Very Low Bit Rate Video Coding Using motion Compensated 3 D Wavelet Transform

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Advances in Manufacturing 1999年第4期3卷 342-344页

作者： HOU wei dong mo yu long (School of Communication and Information Engineering, Shanghai University) HU Hai ping (School of Sciences, Shanghai University) School of Communication & Information Engineering Shanghai University Shanghai China School of Sciences Shanghai University China

A new motion compensated 3 D wavelet transform (MC 3DWT) video coding scheme is presented in this paper. The new coding scheme has a good performance in average PSNR, compression ratio and visual quality of reconstructions compared with the existing 3 D wavelet transform (3DWT) coding methods and motion compensated 2 D wavelet transform (MC WT) coding method. The new MC 3DWT coding scheme is suitable for very low bit rate video coding.

关键词： video coding very low bit rate 3 D wavelet transform motion compensation

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西北五省温室气体排放核算及动态研究

干旱区资源与环境 2017年第1期31卷 32-37页

作者：韦良焕于坤莫治新鞠美庭南开大学环境科学与工程学院天津300071 喀什大学化学与环境科学学院喀什844006

在IPCC和中国《省级温室气体编制指南》的基础上,计算了新疆、甘肃、宁夏、陕西和青海五省温室气体排放清单。结果表明:2000-2012西北五省温室气体排放总量呈现快速增长趋势,且CO2的排放量最多,其次是CH4和N2O,能源消费产生的温室气体... 详细信息

在IPCC和中国《省级温室气体编制指南》的基础上,计算了新疆、甘肃、宁夏、陕西和青海五省温室气体排放清单。结果表明:2000-2012西北五省温室气体排放总量呈现快速增长趋势,且CO2的排放量最多,其次是CH4和N2O,能源消费产生的温室气体排放是温室气体排放总量中最主要的,而煤炭的消费又是能源消费中最核心的;万元GDP温室气体排放量均呈现下降趋势,说明能源利用效率在不断提高;人均温室气体、单位面积温室气体均快速增长,2012年人均温室气体排放量最多的是宁夏,其次是青海,新疆、陕西和甘肃;单位面积温室气体也是宁夏最高,其次为陕西、甘肃、新疆和青海,均高于应对全球气候目标的人均、单位面积温室气体排放量。因此,西北五省将面临严峻的节能减排任务。

关键词：温室气体排放清单西北五省

Improve Spatial Resolution of Electrical Impedance Tomography Image Based on Non-uniformity Fine Mesh

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Advances in Manufacturing 2000年第S1期4卷 42-46页

作者： ZHANG wei-min, mo yu-long School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China School of Communication and Information Engineering Shanghai University Shanghai 200072 China

In electrical impedance tomography (EIT) an approximation for the internal resistivity distribution is computed based on the knowledge of the injected currents and measured voltages on the surface of the body. Several difficulties have been identified in EIT, where the main problem is the low spatial resolution. This paper presents a fining mesh method based on finite element method (FEM), by fining the sensitive element, the most actual signal is obtained in certain electrode number. Newton-Raphson reconstruction algorithm improves the spatial solution of image. The advantages of this method are the improvement of spatial resolution and ease of implementation.

关键词： electrical impedance tomography(EIT) finite element method image reconstruction

Acute and chronic excitotoxicity in ischemic stroke and late-onset Alzheimer's disease

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Neural Regeneration Research 2025年第7期20卷 1981-1988页

作者： Shan Ping yu Emily Choi Michael QJiang Ling wei Department of Anesthesiology Emory University School of MedicineAtlantaGAUSA Center for Visual and Neurocognitive Rehabilitation Atlanta Veterans Affairs Medical CenterDecaturGAUSA

Stroke and Alzheimer's disease are common neurological disorders and often occur in the same *** comorbidity of the two neurological disorders represents a grave health threat to older *** review presents a brief background of the development of novel concepts and their clinical *** activity of glutamatergic N-methyl-D-aspartate receptors and N-methyl-D-aspartate receptor-mediated Ca^(2+)influx is critical for neuronal *** ischemic insult induces prompt and excessive glutamate release and drastic increases of intracellular Ca^(2+)mainly via N-methyl-D-aspartate receptors,particularly of those at the extrasynaptic *** Ca^(2+)-evoked neuronal cell death in the ischemic core is dominated by necrosis within a few hours and days known as acute ***,mild but sustained Ca^(2+)increases under neurodegenerative conditions such as in the distant penumbra of the ischemic brain and early stages of Alzheimer's disease are not immediately toxic,but gradually set off deteriorating Ca^(2+)-dependent signals and neuronal cell loss mostly because of activation of programmed cell death *** on the Ca^(2+)hypothesis of Alzheimer's disease and recent advances,this Ca^(2+)-activated“silent”degenerative excitotoxicity evolves from years to decades and is recognized as a unique slow and chronic *** N-methyl-D-aspartate receptor subunit GluN3A,primarily at the extrasynaptic site,serves as a gatekeeper for the N-methyl-D-aspartate receptor activity and is neuroprotective against both acute and chronic *** stroke and Alzheimer's disease,therefore,share an N-methyl-D-aspartate receptor-and Ca^(2+)-mediated mechanism,although with much different time *** is thus proposed that early interventions to control Ca^(2+)homeostasis at the preclinical stage are pivotal for individuals who are susceptible to sporadic late-onset Alzheimer's disease and Alzheimer's disease-related

关键词： Ca^(2+)hypothesis cognitive deficits hyperactivity late-onset Alzheimer's disease neurodegeneration N-methyl-D-aspartate receptors N-methyl-D-aspartate receptor subunits pathogenesis preventive treatment

Relationship between longitudinal changes in lipid composition and ischemic stroke among hypertensive patients

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World Journal of Clinical Cases 2025年第4期13卷 18-27页

作者： Cheng-Cheng wei yu-Qing Huang Cheng-Hong yu Department of Cardiology Tongxiang First People's HospitalTongxiang 314500Zhejiang ProvinceChina Department of Cardiology Guangdong Cardiovascular InstituteGuangzhou 510080Guangdong ProvinceChina

BACKGROUND Dyslipidemia was strongly linked to stroke,however the relationship between dyslipidemia and its components and ischemic stroke remained *** To investigate the link between longitudinal changes in lipid profiles and dyslipidemia and ischemic stroke in a hypertensive *** Between 2013 and 2014,6094 hypertension individuals were included in this,and ischemic stroke cases were documented to the end of *** changes of lipid were stratified into four groups:(1)Normal was transformed into normal group;(2)Abnormal was transformed into normal group;(3)Normal was transformed into abnormal group;and(4)Abnormal was transformed into abnormal *** examine the link between longitudinal changes in dyslipidemia along with its components and the risk of ischemic stroke,we utilized multivariate Cox proportional hazards models with hazard ratio(HR)and 95%*** The average age of the participants was 62.32 years±13.00 years,with 329 women making up 54.0%of the *** the course of a mean follow-up of 4.8 years,143 ischemic strokes *** normal was transformed into normal group was used as a reference,after full adjustments,the HR for dyslipidemia and ischemic stroke among abnormal was transformed into normal group,normal was transformed into abnormal group and abnormal was transformed into abnormal wei CC et *** changed and ischemic stroke WJCC https://*** 2 February 6,2025 Volume 13 Issue 4 group were 1.089(95%CI:0.598-1.982;P=0.779),2.369(95%CI:1.424-3.941;P<0.001)and 1.448(95%CI:1.002-2.298;P=0.047)(P for trend was 0.233),*** In individuals with hypertension,longitudinal shifts from normal to abnormal in dyslipidemia-particularly in total and low-density lipoprotein cholesterol-were significantly associated with the risk of ischemic stroke.

关键词： Longitudinal change Hypertension Dyslipidemia Lipid profile Ischemic stroke

Direct Photolithography of WO_x Nanoparticles for High-Resolution Non-Emissive Displays

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NANO-MICRO LETTERS 2025年第1期17卷 1-13页

作者： Gu, Chang Yang, Guojian Wang, Wenxuan Shi, Aiyan Fang, Wenjuan Qian, Lei Hu, Xiaofei Zhang, Ting Xiang, Chaoyu Zhang, yu-mo Chinese Acad Sci Ningbo Inst Mat Technol & Engn Lab Optoelect Informat Technol & Devices Ningbo 315201 Peoples R China Qianwan Inst CNITECH Hangzhou Bay Lab Adv Nanooptoelectron Mat & Device Ningbo 315336 Peoples R China Zhejiang Univ Innovat Ctr Yangtze River Delta Smart Mat Architecture Res Lab Jiaxing 314100 Peoples R China Univ Sci & Technol China Hefei 230026 Peoples R China Jilin Univ Coll Chem State Key Lab Supramol Struct & Mat Changchun 130012 Peoples R China

High-resolution non-emissive displays based on electrochromic tungsten oxides (WOx) are crucial for future near-eye virtual/augmented reality interactions, given their impressive attributes such as high environmental stability, ideal outdoor readability, and low energy consumption. However, the limited intrinsic structure of inorganic materials has presented a significant challenge in achieving precise patterning/pixelation at the micron scale. Here, we successfully developed the direct photolithography for WOx nanoparticles based on in situ photo-induced ligand exchange. This strategy enabled us to achieve ultra-high resolution efficiently (line width m, the best resolution for reported inorganic electrochromic materials). Additionally, the resulting device exhibited impressive electrochromic performance, such as fast response (modulation (55.9%), and durability (> 3600 cycles), as well as promising applications in electronic logos, pixelated displays, flexible electronics, etc. The success and advancements presented here are expected to inspire and accelerate research and development (R&D) in high-resolution non-emissive displays and other ultra-fine micro-electronics.

关键词： Electrochromic Direct photolithography WOx nanoparticles In situ photo-induced ligand exchange High-resolution displays

Precise gradient separation of nanoparticles using reduced graphene oxide-polyoxomolybdate membranes

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Science China Chemistry 2025年第01期 209-216页

作者： Yixin Yang Wanlei Zhao Ruoxuan Zheng Hongqiang Li wei Chen yu-Fei Song State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Quzhou Institute for Innovation in Resource Chemical Engineering

The purification and size sieving of nanoparticles （NPs） represents a significant scientific ***,the r GO-polyoxometalates (POMs=Pmo12,mo132and mo368) membranes were fabricated successfully via a simple and scalable POMsassisted in-situ photoreduction *** the mass ratio of r GO to Pmo12was 1:30,the resultant r GO-Pmo12membranes with highly ordered and uniform nanochannels of 1.0 nm can be obtained,which showed an accurate carbon quantum dots（CQDs） separation with a cut-off size approximately 1.0 *** increase of the size of the interlayered POMs from Pmo12（1.0 nm）,{mo132}（2.9 nm） to{mo368}（3.8 nm）,the resultant r GO-Pmo12,r GO-mo132and r GO-mo368exhibited precise gradient separation of CQDs and Au nanoparticles by size exclusion *** results pave a promising way to construct new twodimensional （2D） membranes for highly efficient size-selective separation.

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Discovery of a new family member of arsenic–vanadium polyoxometalates with high catalytic performance for one-pot coupling of CO2, epoxides and amines

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Tungsten 2025年第1期 80-87页

作者： Fang-Qian Wang Yin Zhang wei-wei Wang Mei-Qian Fu Hong-Bing mo wei-Dong yu Chao Liu Jun Yan College of Chemistry and Chemical Engineering Central South University Junior Education Department Changsha Normal University School of Science Hunan University of Technology and Business

Arsenic-vanadium polyoxometalates（POMs） represent a family of tremendous potential catalysts owing to their peculiar physical and chemical *** in CO2conversion,using POMs to catalyze the conversion of CO2and epoxide into chemical intermediates is the research ***,A new family number of arsenic-vanadium POMs,[N（CH3）4]4[As8V12O38（H2O）]·2H2O({As8V12O38}),was reported and characterized by single-crystal X-ray diffraction,fourier transform infrared spectroscopy,X-ray photoelectron spectroscopy,*** from other allotropicity,{As8V12O38}shows a different structure pattern with an I-43d *** obtained {As8V12O38} was employed as a catalyst for the *** initial catalytic reaction confirmed that {As8V12O38} can catalyze the formation of epoxy carbonate by using 1.01 kPa CO2and epoxide at 70℃.Furtherly,when added amine in the catalytic system,oxazolidinone could be obtained by high yields,which provides an efficient way to convert CO2into profitable ***,a possible catalytic reaction mechanism was proposed by using different characterization analyses.{As8V12O38} first catalyzes the epoxide and CO2to form an epoxy carbonate and then catalyzes epoxy carbonate and benzylamine into oxazolidinone.

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间充质干细胞对去除CD4^+CD25^+调节性T细胞哮喘小鼠气道炎症的影响

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中国组织工程研究 2017年第5期21卷 742-747页

作者：颛孙永勋张炜杜雨末冉丕鑫陈瑞林琳李建国中山大学孙逸仙纪念医院呼吸内科广东省恶性肿瘤表观遗传与基因调控重点实验室广东省广州市510120 深圳市第二人民医院普通内科广东省深圳市518035 广州医科大学第一附属医院广州呼吸疾病研究所广东省广州市510120

背景:间充质干细胞具有免疫调节作用,可抑制哮喘小鼠气道炎症,但其机制尚不明确。前期研究表明,间充质干细胞可上调哮喘小鼠外周血CD4^+CD25^+调节性T细胞(Treg)。目的:观察骨髓间充质干细胞移植对去除CD4^+CD25^+Treg哮喘小鼠气道炎症... 详细信息

背景:间充质干细胞具有免疫调节作用,可抑制哮喘小鼠气道炎症,但其机制尚不明确。前期研究表明,间充质干细胞可上调哮喘小鼠外周血CD4^+CD25^+调节性T细胞(Treg)。目的:观察骨髓间充质干细胞移植对去除CD4^+CD25^+Treg哮喘小鼠气道炎症的影响。方法:将40只BALB/c小鼠随机分为5组:正常对照组(A组)、哮喘模型组(B组)、去除Treg细胞哮喘模型组(C组)、MSCs处理组(D组)、去除Treg细胞哮喘模型MSCs处理组(E组)。除A组外,其余各组以卵白蛋白致敏和激发的方法建立哮喘动物模型;C组和E组在激发前1 d及激发实验第3天经尾静脉注射大鼠抗小鼠CD25^+单克隆抗体,以去除CD4^+CD25^+Treg;D组、E组于诱导哮喘的第10天尾静脉注射0.2 mL骨髓间充质干细胞(1×109 L-1)。最后1次激发后24 h,检测各组小鼠外周血CD4^+CD25^+Treg占淋巴细胞的比例,支气管肺泡灌洗液中炎症细胞总数及分类计数,并进行肺组织病理观察。结果与结论:(1)外周血CD4^+CD25^+Treg占淋巴细胞比例:B组、D组低于A组(P<0.01),D组高于B组(P<0.01);(2)支气管肺泡灌洗液中炎症细胞计数:B组﹑C组﹑D组炎症细胞总数﹑嗜酸性粒细胞计数均显著高于A组(P<0.01),C组炎症细胞总数﹑嗜酸性粒细胞计数显著高于B组(P<0.01),D组炎症细胞总数、酸性粒细胞计数显著低于B组(P<0.01),E组炎症细胞总数﹑嗜酸性粒细胞计数显著低于C组(P<0.01);(3)肺组织病理:间充质干细胞可显著抑制哮喘小鼠气道炎症;去除Treg细胞可加重哮喘小鼠气道炎症,但间充质干细胞仍能显著抑制去除外周血CD4^+CD25^+Treg哮喘小鼠的气道炎症;(4)结果表明:间充质干细胞可显著抑制去除CD4^+CD25^+Treg哮喘小鼠的气道炎症反应。

关键词：干细胞间质干细胞哮喘组织工程分化间充质干细胞调节性T细胞免疫调节