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Chinese Chemical Letters 2021年第6期32卷 1915-1919页

作者： Meng-Meng Xu Lu-Yao Kou xiao-guang bao xiao-Ping Xu Shun-Jun Ji Key Laboratory of Organic Synthesis of Jiangsu Province College of ChemistryChemical Engineering and Materials Science&Collaborative Innovation Center of Suzhou Nano Science and TechnologySoochow UniversitySuzhou 215123China

Novel and efficient Mn(OAc)_(3)·2 H_(2)O promoted radical addition-[4+1]cyclization relay of 3-indolymethanols and phosphites was disclosed,which afforded 1,2-oxaphospholoindole derivatives in moderate to good *** on the experimental and computational studies,a mechanism involving radical addition and intramolecular cyclization cascade was proposed.

关键词： 3-Indolymethanol Dual role of Mn(OAc)_(3) Four-atom building blocks Valuable products DFT calculations

Maternal investment and birth sex ratio bias of Sichuan snub-nosed monkey Rhinopithecus roxellana

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Maternal investment and birth sex ratio bias of Sichuan snub...

第二届全国野生动物生态与资源保护学术讨论会

作者： QI xiao-guang LI bao-Guo College of Life Science,Northwest University,Xi’an 710069,China

To gain a higher benefit over cost,female primates will adjust their maternal investment strategy for offspring of different sexes,which mainly means enhanced birth for a certain sex. Male Quality Model(MQ) and Local ...

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柔性贮箱内液体晃动的分析模型

上海交通大学学报 2004年第8期38卷 1412-1416页

作者：汤晓昀包光伟上海交通大学工程力学系上海200240

研究了贮箱内液体晃动建模中贮箱的柔性与刚性、液体自由面的晃动与非晃动之间的差别.利用液体晃动特征模态和容器结构振动特征模态将液体晃动和弹性结构振动这2个相互耦合的微分方程边值问题进行离散,从而导出了液固耦合系统的动力学... 详细信息

研究了贮箱内液体晃动建模中贮箱的柔性与刚性、液体自由面的晃动与非晃动之间的差别.利用液体晃动特征模态和容器结构振动特征模态将液体晃动和弹性结构振动这2个相互耦合的微分方程边值问题进行离散,从而导出了液固耦合系统的动力学方程、相应的液固耦合系统固有频率方程以及液体晃动对容器和充液容器系统对基座的作用力主矢主矩的计算表达式.通过数值计算,比较了刚性贮箱和柔性贮箱之间在液体晃动频率和晃动作用力主矢主矩上的差异;液体引入表面波假设与不计表面波动的柔性壁贮液容器在结构振动频率和作用力主矢主矩上的差别.通过对柔性贮箱内液体晃动动力学模型的无量纲化,得到了确定该动力学模型的3个基本参数,数值研究了这3个基本参数对系统固有频率、系统响应力主矢主矩的影响.

关键词：液固耦合液体晃动液动压力

De novo synthesis of atropisomeric benzofurans via Cu/SPDO complex catalyzed asymmetric formal [3 + 2] annulation

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Science China Chemistry 2025年第1期 174-180页

作者： Fan-xiao Meng Xing-Yu Wang Ka Lu Ju-Song Yang Fu-Min Zhang Ai-Jun Ma bao Du Yong-Qiang Tu State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University School of Chemistry and Chemical Engineering Shanghai Jiao Tong University School of Biotechnology and Health Sciences Wuyi University

Herein, the de novo synthesis of atropisomeric benzofurans through the Cu/spirocyclic-pyrrolidine-oxazoline(SPDO) complex catalyze asymmetric formal [3 + 2] cycloaddition between quinones and ynamides is explored, producing a range of structurally diverse axially chiral benzofurans in satisfactory yields with good to excellent enantioselectivities. Furthermore, density functional theory calculations were applied to explain the possible reaction mechanism.

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Integrating lipidomics and gut microbiota to study the anti-hyperlipidemia effect of Sargentodoxae Caulis extract

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Traditional Medicine Research 2025年第1期10卷 1-11页

作者： xiao-xiao Zhang Li Jia Xiu-Jun Zhan Charity Ngina Qing-Rui Zhang xiao-Ge Li Qi-bao Jiang Shi Bai Miao-Miao Jiang National Key Laboratory of Chinese Medicine Modernization Tianjin University of Traditional Chinese MedicineTianjin 301617China Haihe Laboratory of Modern Chinese Medicine Tianjin 301617China School of Medicine Taizhou UniversityTaizhou 318000China.

Background:Sargentodoxae Caulis(SC)is the vine stem of Sargentodoxa Cuneata(Oliv.)Rehd.&*** in ***,and it in traditional Chinese medicine has been known for promoting blood circulation and removing blood stasis as recorded in the ancient book“Illustrated Classics of Materia Medica”.It has been used effectively to treat blood stasis too in modern clinical ***,the anti-hyperlipidemia effect of SC is not fully *** paper aims at exploring the use of SC stems to improve the balance of blood lipids in the body,and its new role in treating ***:The effects of SC extract on hyperlipidemia were explored by combining lipidomics and gut ***,we explored the potential mechanism of SC in treating hyperlipidemia by pathway ***:The results showed that the stem extract of SC could restore the physiological and biochemical indices of hyperlipidemia in mice,as well as repair the morphological and structural damage to *** to the Model group,the SC extract significantly reduced the liver index,epididymal fat index,and Lee’s *** also significantly decreased serum levels of total cholesterol,triglycerides,low-density lipoprotein cholesterol,peroxisome proliferator-activated receptor gamma(PPAR-γ),D-lactate,and free fatty acids,while significantly increasing the relative content of peroxisome proliferator-activated receptor alpha(PPAR-α).These changes were statistically ***-targeted lipidomics,based on LC-MS,were utilized to investigate the lipid metabolism characteristics in serum,liver,and epididymal fat of the *** was observed that,compared to the blank group,the Model group exhibited significant changes primarily in glycerol lipids and *** treatment group also displayed alterations in these lipids.A total of 38,81,and 27 differential lipids were identified in serum,liver,and epididymal fat samples,*** these,14 common differenti

关键词： hyperlipidemia Sargentodoxae Caulis lipidomics intestinal flora

Pointwise A Priori Estimates for Solutions to Some p-Laplacian Equations

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Acta Mathematica Sinica,English Series 2022年第12期38卷 2150-2162页

作者： xiao Qiang SUN Ji guang bao School of Mathematics Sun Yat-sen UniversityGuangzhou 510275P.R.China School of Mathematical Sciences Beijing Normal UniversityLaboratory of Mathematics and Complex SystemsMinistry of EducationBeijing 100875P.R.China

In this article,we apply blow-up analysis to study pointwise a priori estimates for some p-Laplacian equations based on Liouville type *** newly developed analysis techniques,we first extend the classical results of interior gradient estimates for the harmonic function to that for the p-harmonic function,i.e.,the solution ofΔpu=0,x∈Ω.We then obtain singularity and decay estimates of the sign-changing solution of Lane-Emden-Fowler type p-Laplacian equation-Δp^(u)=|u|^(λ-1)u,x∈Ω,which are then extended to the equation with general right hand term f(x,u)with certain asymptotic *** addition,point wise estimates for higher order derivatives of the solution to Lane-Emden type p-Laplacian equation,in a case of p=2,are also discussed.

关键词： Priori estimates Blow-up analysis p-Laplacian

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事故透平机组啮合原理及试车方案

化工技术与开发 2013年第10期42卷 60-61页

作者：黄聪肖宝光姚圣兵唐福鸿中国石油广西石化公司生产四部广西钦州535008 中国石油大庆石化公司塑料厂黑龙江大庆163714

介绍了气相法流化床反应器事故透平机组的工艺功能,分析了该机组自动同步离合器的基本工作原理和两级棘爪结构的固有特点,得出了机组的试车方案,并在试车过程中确保了机组的平稳运转和设计功能的实现。

关键词：事故透平自动同步离合器两级棘爪试车方案

Interception probability simulation and analysis of salvo of two electromagnetic coil launched anti-torpedo torpedoes

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Defence Technology（防务技术） 2022年第11期18卷 2065-2073页

作者： bao-qi Wu guang-sen Wang xiao-cun Guan Biao Wu National Key Laboratory of Science and Technology on Vessel Integrated Power System Naval University of EngineeringWuhan430033China Jiangsu Automation Research Institute Lianyungang222006China

Electromagnetic coil launch is an important branch of electromagnetic launch(EML)technology,which is suitable for launching anti-torpedo torpedo(ATT).This paper focuses on the EML parameters and the interception probability of the EML two ATTs *** on the launching model of a multi-stage coil launcher,the trajectory model of the ATT and the attacking torpedo,a calculation method for the EML two ATTs salvo parameters is proposed,with the conditions of capture and interception given *** adaptive particle swarm optimization(APSO)algorithm is proposed to calculate the optimal launching parameters,by designing the adaptive inertia weight and time-varying study *** to the analysis of the simulation with Monte Carlo method,EML will improve the interception probability effectively,and the interception probability is affected by the launching *** results demonstrate good performance of the proposed APSO in calculating EML parameters for the two ATTs salvo in certain combat *** of these results are particular regarding the command and decision in the anti-torpedo combat.

关键词： Interception probability Electromagnetic coil launch Anti-torpedo torpedo Adaptive PSO

DOCK8 deficiency with mediastinal lymph node tuberculosis

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World Journal of Pediatrics 2020年第2期16卷 213-214页

作者： Lin-Qian Zhang xiao-Bing Li Yun-guang bao Jinhua Hospital of Zhejiang University Jinhua 321300China

A 12-year-old girl presented with a history of unexplained persistent fever,accompanied by paroxysmal dry cough,skin *** patient had a past medical history of recurrent fever,pneumonia(at least four times per year),eczema,accompanied by diarrhea,repeated skin Staphylococcus aureus infection since 6 months of *** examination revealed broad nasal bridge and scoliosis,and chest computed tomography(CT)showed pneumonia,partial bronchiectasis of the right lung,and multiple mediastinal lymph node enlargement with confluence(Fig.1).Laboratory studies demonstrated significantly increased blood eosinophils and serum level of total *** biopsy of the rashes on the buttocks suggested eosinophil infiltration.

关键词： diarrhea tuberculosis fever

A Qualitative Analysis of Channel Wave Functions and Widths of the Low-lying States of ^(6)Li

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Chinese Physics Letters 2000年第1期17卷 10-12页

作者： bao Cheng-guang Center of Theoretical Nuclear Physics National Laboratory of Heavy Ion AcceleratorLanzhou 730000 Department of Physics Zhongshan UniversityGuangzhou 510275

The structure of the channel wave functions of 6Li is studied *** is found that the widths of the low-lying resonances can be in general explained by using shell model wave ***,the width of the 3^(+) state is narrower than that anticipated by the shell modelf thus there is a room for the existence of other physical pictures to describe the very light nuclei.

关键词： functions wave narrow