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One-pot Synthesis and Characterization of 13-Acetyl-9-methyl-11-oxo-8- oxa- 10,12-d iazatricyclo [7.3.1.0^2,7] trideca- 2,4,6- triene

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Chinese Journal of Chemical Physics 2006年第1期19卷 84-88页

作者： Hojatollah Salehi qian-rong li Qing-xiang Guo Hefei National Laboratory for Physical Sciences at Microscale Department of Chemistry University of Science and Technology of China Hefei 230026 China Scholarship Department Ministry of Science Research and Technology P.O. Box Tehran 15875-6185 Iran

为 13-acetyl-9-methyl-11-oxo-8-oxa-10,12-diazatricyclo 的一个壶合成的一个有效、环境地友好的过程[从经由由处于一个没有溶剂的条件把镁溴化物用作便宜、容易可得到的催化剂的 Biginelli 冷凝作用和 intramolecular Michael 增加的... 详细信息

为 13-acetyl-9-methyl-11-oxo-8-oxa-10,12-diazatricyclo 的一个壶合成的一个有效、环境地友好的过程[从经由由处于一个没有溶剂的条件把镁溴化物用作便宜、容易可得到的催化剂的 Biginelli 冷凝作用和 intramolecular Michael 增加的 salicylaldehyde， acetylacetone 和脲的 7:3:1:0 2;7]trideca-2,4,6-triene 被描述。产品的结构的说明被 1 H-NMR 和 13 C-NMR 系列。产品能被它的 EI TOF 集体 spectrometry 也在 m/s 基于分子的离子识别 246 (10%) 并且在二个氮原子在被仍然是的碎片离子上。从分子的离子的三种典型破碎小径被观察。一个人是 OH 激进分子的损失在 m/z 形成 dihydropyrimidinone 阳离子 229 (48%) ，由在 m/z 形成 pyrimidinone 阳离子的分子的甲烷的消除列在后面 213 (27%) 。第二是 C 6 H 4 哦在 m/z 的 dihydropyrimidinone 阳离子的基，和形成 153 (24%) 。第三是 MeC=O 基的损失在 m/z 负担得起衔接氧的碎片离子 203 (33%) 。

关键词：一壶合成表征 13-乙酰基-9-甲基-11-氧-8-氧杂- 10,12-二氮杂三环[7.3.1.0^2,7]十三- 2,4,6- 三烯氧桥二氢嘧啶酮分子间迈克尔加成作用 NMR, EI-TOFMS

Synthesis of A Novel Fulleroaziridine Carrying 4-Deoxy-4'-demethylepipodophyllotoxin

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Chinese Chemical Letters 2003年第11期14卷 1123-1126页

作者： qian rong li Sha YANG Structure Research Laboratory University of Science and Technology of ChinaHefei 230026

A novel fulleroaziridine 2 with a closed 6,6-ring junction was synthesized from [60]fullerene and 4-azido-4-deoxy- 4?demethylepipodophyllotoxin 1 in 1, 2-dichlorobenzene at 110℃ for 45 h, in a yield of 39.3 % based o... 详细信息

关键词： Podophyllotoxin derivative azide fullerene fulleroaziridine cycloaddition.

CAUSES OF DEATH AND LONG-TERM PROGNOSIS AFTER MYOCARDIAL INFARCTION IN PATIENTS WITH DIABETES MELliTUS

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中华医学杂志(英文版) 1991年第1期104卷 18-21页

作者： qian rong-li Feng Jin-guang Department of Endocrinology the First Hospital of Beijing Medical University Beijing 100034

The long-term prognosis and causes of death of myocardial infarction (MI) in 62 diabetics were studied. The mean follow-up time was 6.2 years, 11 patients died in the acute stage of MI, 9 of them (81.8%) had anterior infarction and their major causes of death were ventricular fibrillation and cardiogenic shock (72.2%). 19 died in the follow-up period, 14 of them (73.68%) had inferior and anterior septal infarction; and most died of reinfarction and sudden death. The cumulative survival rate 1, 2 and 5 years after MI was 80.7%, 71.9% and 57.9%, respectively. The results suggest that treatment and prevention of MI in patients with diabetes be more attentive to prevent ventricnlar fibrillation and cardiogenic shock during the acute stage and in the later stage more attention should be paid to preventing reinfarction. At any stage of the disease, strict diabetic control is of vital importance.

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A high-performance lithium anode based on N-doped composite graphene

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Rare Metals 2024年第3期43卷 1030-1036页

作者： Can Jiao Hao-Bo Sun li Zhang Shang-qian Zhao Guo-Yao Pang Chun-rong Zhao Shi-Gang Lu General Research Institute for Nonferrous Metals Beijing100088China China Automotive Battery Research Institute Co.Ltd Beijing101407China

lithium(li)metal is the most promising electrode for next-gene ration rechargeable *** order to push the commercialization of the lithium metal batteries,a kind of nitrogen(N)-doped composite graphene(NCG)adopted as the li plating host was prepared to regulate li metal nucleation and suppress dendrite ***,a new kind of sandwich-type composite lithium metal(STCL)electrode was developed to improve its *** STCL electrode can be used as convenient as a piece of li foil but no dendrite *** a symmetric battery,the STCL electrode cycled for more than 4500 h with the overpotential of less than 40 *** due to the creative design,the STCL promises the li-S battery with a prolonged cycling lifespan.

关键词： lithium metal anode lithiophilic N-doped composite graphene Sandwich-type composite lithium metal electrode

Market-based solution in China to finance the clean from the dirty

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Fundamental Research 2024年第2期4卷 324-333页

作者： Haoqi qian rong Ma libo Wu Institute for Global Public Policy Fudan UniversityShanghai 200433China LSE-Fudan Research Centre for Global Public Policy Fudan UniversityShanghai 200433China School of Economics Fudan UniversityShanghai 200433China Shanghai Institute for Energy and Carbon Neutrality Strategy Fudan UniversityShanghai 200433China

Financial incentives play a key role in promoting renewable energy investments that can help China achieve the‘dual carbon’*** national emissions trading scheme(ETS)and the renewable energy portfolio standard(RPS)are two existing market-based policy instruments that can generate stable expected returns for low-carbon *** paper studies the interactive distribution effects of these two market-based *** use the micro-level thermal power plant data to investigate the abatement effects of the national ETS,in which the details show that the existing rate-based ETS will result in higher negative impacts on power units,whose installed capacities are smaller than 400 *** interactive distribution effects between the two markets will occur when the permit allocation standards of the national ETS become stricter than the existing *** in Eastern China and Northern China will face high pressure on costs in both ETS and RPS *** the levels of the permit allocation standards are set as 70%of the existing ones and the carbon price is assumed to be 200 yuan/ton in 2030,the annual market size of the national ETS will be nearly 100 billion yuan,and the annual market size is predicted to be 250 billion *** the existing rate-based national ETS,the China Certified Emission Reduction(CCER)mechanism will have an offsetting effect,which should be taken into serious consideration during the policy-making processes in the future.

关键词： Emission trading scheme Renewable energy portfolio standard Green finance Policy interactions China certified emission reduction Distribution effect

Regioselective Propargylation of Aldehydes with Propargyl Bromide Mediated by Sn-In in Aqueous Media under Microwave Irradiation

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Chinese Chemical Letters 2005年第12期16卷 1573-1576页

作者： Cheng Zhi GU qian rong li Hao YIN Structure Research Laboratory University of Science and Technology of China Hefei 230026

Tin-indium were employed in the propargylations of various aldehydes with propargyl bromide in the presence of SnCl2 and C6H5（CH3）3NBr under microwave irradiation to afford the corresponding homopropargyl alcohols exclusively in high yields. All the reactions were completed smoothly in predominantly aqueous media in 200 seconds only.

关键词： Propargylation aldehydes tin-indium regioselectivity microwave

Risk Factors of Enternal Nutrition Intolerance in Septic Patients:A Case-control Study

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Current Medical Science 2024年第2期44卷 328-332页

作者： li-zhu WANG Yan XIANG qian li Yi-rong ZHU Jue FANG Xiao-dan LU Zhao-cai ZHANG Department of Nursing The Second Affiliated HospitalZhejiang University School of MedicineHangzhou 310009China Department of Critical Care Medicine The Second Affiliated HospitalZhejiang University School of MedicineHangzhou 310009China Key Laboratory of the Diagnosis and Treatment for Severe Trauma and Burn of Zhejiang Province Hangzhou 310009China Zhejiang Province Clinical Research Center for Emergency and Critical Care Medicine Hangzhou 310009China

Objective:This study aimed to investigate the incidence of enteral nutrition intolerance(ENI)in patients with sepsis and explore potential risk ***:A case-control study was conducted in patients with sepsis who were receiving enteral nutrition(EN)at a tertiary hospital in *** included patients were divided into the ENI group and the non-ENI *** and multivariate analyses were performed to identify the risk factors for ***:A total of 859 patients were included in the *** them,288(33.53%)patients experienced symptoms of ENI,including diarrhea,vomiting,bloating,and gastric *** regression analysis revealed that the Acute Physiology and Chronic Health Evaluation H(APACHE H)score,thoracocentesis,and usage of cardiotonic drugs(namely,inotropes)were independent predictors of the ***:The incidence of ENI is relatively high in patients with sepsis,especially in those who have higher APACHE H scores,have undergone thoracocentesis,and have received inotropes.

关键词： sepsis enteral nutrition intolerance influencing factor

Vibration Control of A Flexible Marine Riser System Subject to Input Dead Zone and Extraneous Disturbances

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China Ocean Engineering 2024年第2期38卷 271-284页

作者： ZHOU li WANG Guo-rong WAN Min School of Mechatronic Engineering Southwest Petroleum UniversityChengdu 610500China Energy Equipment Institute Southwest Petroleum UniversityChengdu 610500China National Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum UniversityChengdu 610500China

An observer-based adaptive backstepping boundary control is proposed for vibration control of flexible offshore riser systems with unknown nonlinear input dead zone and uncertain environmental *** control algorithm can update the control law online through real-time data to make the controller adapt to the environment and improve the control ***,based on the adaptive backstepping framework,virtual control laws and Lyapunov functions are designed for each *** direction interference observers are designed to track the timevarying boundary *** this basis,the inverse of the dead zone and linear state transformation are used to compensate for the original system and eliminate the adverse effects of the dead *** addition,the stability of the closed-loop system is proven by Lyapunov stability *** the system states are bounded,and the vibration offset of the riser converges to a small area of the initial ***,four examples of flexible marine risers are simulated in MATLAB to verify the effectiveness of the proposed controller.

关键词： adaptive backstepping control disturbance observer flexible marine riser input dead zone vibration control

Micro-sized nanoaggregates:Spray-drying-assisted fabrication and applications

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Particuology 2024年第2期85卷 22-48页

作者： Dan-Lei Yang rong-Kun liu Yan Wei qian Sun Jie-Xin Wang School of life Sciences and Chemical Engineering Jiangsu Second Normal UniversityNanjing210013China State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical TechnologyBeijing100029China Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology School of Chemistry and Chemical EngineeringGuangxi UniversityNanning530004China

The applications of nanoparticles suffer from their extremely small size and intrinsic trend of *** nanoparticles to form micro-sized nanoaggregates(MNAs)with increased size,ordered structure,as well as controllable size,shape,and morphology is a crucial step in various fields of science and technology to maintain the unique characteristics of nanoparticles while obtaining greatly enhanced or new performance at the *** structure of MNAs prominently affects their functionality,which is determined by the arrangement of nanoparticles and the interaction between primary *** methods have been proposed to prepare the MNAs,in which spray-drying technology stands out considering the feasibility,scalability for industry,cost,and *** assembly of nanoparticles through spray-drying under tunable process parameters yields diverse physical properties and structural arrangements of nanoparticles of the MNAs,they therefore exhibit enormous potential in a wide range of application *** review presents the construction and applications of spray-dried *** factors that influence the size,morphology,and structure of the MNAs are discussed in *** addition,the outstanding application performance resulting from the tightly packed nanoparticles in regular-shaped MNAs obtained by the spray-drying process is illustrated.

关键词： Spray-drying Micro-sized nanoaggregates Applications