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Metabolism of benzo[a]pyrene in peroxynitrite/Fe(III) porphyrin system

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Journal of Environmental Sciences 2007年第4期19卷 385-386页

作者： LUO Yun-jing lin Tai-feng zhang Shu-fen LIU Rui ZHONG Ru-gang College of Life Science and Bioengineering Beijing University of Technology Beijing 100022 China.

The peroxynitrite/porphyrin biomimetic system was established to investigate the effects of peroxynitrite on benzo[a]pyrene （B[a]P） metabolism. Three model systems consisting of different iron porphyrins were compared, and the results showed that the peroxynitdte/T（p-Cl）PPFeCl system was the highest catalytic efficiency in the metabolism of B [a]P. We analyzed the B [a]P metabolites produced from this system by RP-HPLC method and firstly identified the formation of nitrobenzo[a]pyrenes which are the special metabolites of B [a]P induced by peroxynitrite.

关键词： peroxynitrite benzo[a]pyrene metabolism nitrobenzo[a]pyrenes

Shock resistance of supercharged boilers through integration with ship structure

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Journal of Marine Science and Application 2007年第4期6卷 18-26页

作者： YAO Xiong-liang feng lin-han zhang A-man ZHOU Qi-xin College of Shipbuilding Engineering Harbin Engineering University Harbin 150001 China

The non-linear finite element software ABAQUS was used to simulate the dynamic response of a marine supercharged boiler when subjected to impact loading. Shock resistance was analyzed by the time-domain simulation method. After exhaustive simulations,the effect of air pressure induced by different working conditions on the shock response of a supercharged boiler was reviewed,leading to conclusions about the variability of structural response with different loading parameters. In order to simulate the real impulsive environments of supercharged boilers,the integration of equipment and ship structure was then primarily used to analyze shock response. These distinctly different equipment shock test methods,run under equivalent work conditions,were compared and the causes of discrepancy were analyzed. The main purpose of this paper is to present references for the anti-shock design of marine supercharged boilers.

关键词： supercharged boiler numerical simulation dynamic response shock resistance integrationof equipment and ship structure

Heart failure and left ventricular dysfunction in older patients with chronic kidney disease: the China Hypertension Survey (2012‒2015)

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Journal of Geriatric Cardiology 2020年第10期17卷 597-603页

作者： Xin WANG Guang HAO Lu CHEN lin-feng zhang Zuo CHEN Yu-Ting KANG Ying YANG Cong-Yi ZHENG Hao-Qi ZHOU Zeng-Wu WANG Run-lin GAO Division of Prevention and Community Health National Center for Cardiovascular DiseaseNational Clinical Research Center of Cardiovascular DiseaseState Key Laboratory of Cardiovascular DiseaseFuwai HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina Department of Epidemiology School of MedicineJinan UniversityGuangzhouChina Department of Cardiology Fuwai HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina

Background Heart failure(HF)is a leading cause of hospitalization and mortality for older chronic kidney disease(CKD)***,the epidemiological data is *** aimed to determine the prevalence of left ventricular(LV)dysfunction and HF,and to explore the risk factors for HF among those *** This is a cross-sectional analysis of the China Hypertension Survey conducted between October 2012 and December 2015.A total of 5,808 participants aged≥65 years were included in the ***-reported history of HF and any other cardiovascular diseases was acquired.2-D and Doppler echocardiography were used to assess LV *** was defined as either estimated glomerular filtration rate(eGFR)<60 mL/min per 1.73 m2 or urinary albumin to creatinine ratio(ACR)≥30 mg/*** Among CKD patients aged≥65 years,the weighted prevalence of HF,heart failure with preserved ejection fraction(HFpEF),heart failure with mid-range ejection fraction(HFmrEF),and heart failure with reduced ejection fraction(HFrEF)was 4.8%,2.5%,0.8%,and 1.7%,*** weighted prevalence of HF was 5.0%in patients with eGFR<60 mL/min per 1.73 m2,and was 5.9%in patients with ACR≥30 mg/*** prevalence of LV systolic dysfunction was 3.1%,and while it was 8.9%for moderate/severe diastolic *** analysis showed that smoking was significantly associated with the risk of ***,age,smoking,and residents in rural areas were significantly associated with a risk of LV diastolic *** The prevalence of HF and LV dysfunction was high in older patients with CKD,suggesting that particular strategies will be required.

关键词： Chronic kidney disease Heart failure Left ventricular dysfunction Older population

A novel approach to treat combined domestic wastewater and excess sludge in MBR

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Journal of Environmental Sciences 2003年第5期15卷 674-679页

作者： HE Sheng bing, WANG Bao zhen, WANG lin, JIANG Yi feng, zhang Li\|qiu (School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China. School of Municipal and Environmental Engineering Harbin Institute of Technology Harbin 150090 Chin

Domestic wastewater was treated by combined anaerobic biofilm aerobic membrane bioreactor(MBR) process, and part biomass in MBR was withdrawn to treat with ozone, then the ozonated sludge was returned to anaerobic inlet. In aerobic MBR, MLSS and DO were controlled at 3000—3500 mg/L and 0 8 mg/L respectively. Comparing the experimental results of two stages, it was noticed that ozonation did not affect the removal efficiency for organics but had a significant influence on the removals of NH 3 N and TN. During the ozonation period of two months, no excess sludge was wasted, and a zero sludge yield was obtained.

关键词： combined anaerobic biofilm aerobic membrane(MBR) domestic wastewater ozonation excess sludge sludge yield

Advances in the Development of Gradient Scaffolds Made of Nano‑Micromaterials for Musculoskeletal Tissue Regeneration

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Nano-Micro Letters 2025年第3期17卷 455-500页

作者： Lei Fang Xiaoqi lin Ruian Xu Lu Liu Yu zhang feng Tian Jiao Jiao Li Jiajia Xue Beijing Laboratory of Biomedical Materials Beijing University of Chemical TechnologyBeijing 100029People’s Republic of China State Key Laboratory of Organic‑Inorganic Composites Beijing University of Chemical TechnologyBeijing 100029People’s Republic of China School of Biomedical Engineering Faculty of Engineering and ITUniversity of Technology SydneySydneyNSW 2007Australia

The intricate hierarchical structure of musculoskeletal tissues,including bone and interface tissues,necessitates the use of complex scaffold designs and material structures to serve as tissue-engineered *** has led to growing interest in the development of gradient bone scaffolds with hierarchical structures mimicking the extracellular matrix of native tissues to achieve improved therapeutic *** on the anatomical characteristics of bone and interfacial tissues,this review provides a summary of current strategies used to design and fabricate biomimetic gradient scaffolds for repairing musculoskeletal tissues,specifically focusing on methods used to construct compositional and structural gradients within the *** latest applications of gradient scaffolds for the regeneration of bone,osteochondral,and tendon-to-bone interfaces are ***,the current progress of testing gradient scaffolds in physiologically relevant animal models of skeletal repair is discussed,as well as the challenges and prospects of moving these scaffolds into clinical application for treating musculoskeletal injuries.

关键词： Gradient scaffolds Musculoskeletal tissues Advanced manufacturing Biomaterials Tissue regeneration

Effects of loneliness and isolation on cardiovascular diseases:a two sample Mendelian Randomization Study

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Journal of Geriatric Cardiology 2024年第3期21卷 340-348页

作者： Jia-Yin CAI Xin WANG Cong-Yi ZHENG Xue CAO Zhen HU Run-Qing GU Yi-Xin TIAN Ye TIAN Lan SHAO lin-feng zhang Zeng-Wu WANG Division of Prevention and Community Health National Center for Cardiovascular DiseaseNational Clinical Research Center of Cardiovascular DiseaseState Key Laboratory of Cardiovascular DiseaseFuwai HospitalPeking Union Medical College&Chinese Academy of Medical SciencesBeijingChina

BACKGROUND Loneliness and isolation are associated with multiple cardiovascular diseases(CVDs),but there is a lack of research on whether they were causally *** conducted a Mendelian Randomization(MR)study to explore causal relationships between loneliness and isolation and multiple *** Single nucleotide polymorphisms associated with loneliness and isolation were identified from a genome-wide association study(GWAS)of 455,364 individuals of European ancestry in the IEU GWAS *** data for 15 CVDs were also obtained from the IEU GWAS *** used three MR methods including inverse variance weighting,MR-Egger,and weighted median estimation to assess the causal effect of exposure on ***'s Q test and MR-Egger intercept test were used to evaluate the heterogeneity and *** MR analysis showed that loneliness and isolation were significantly associated with essential hypertension(OR=1.07,95%CI:1.03-1.12),atherosclerotic heart disease(OR=1.04;95%CI:1.02-1.06),myocardial infarction(OR=1.02;95%CI:1-1.04)and angina(OR=1.04;95%CI=1.02-1.06).No heterogeneity and pleiotropy effects were found in this *** Causal relationship of loneliness and isolation with CVDs were found in this study.

关键词： diseases cardiovascular angina

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大学生激情犯罪探析

福建师范大学学报（哲学社会科学版） 2007年第5期 77-80页

作者：林凤章福建师范大学公共管理学院福建福州350108

激情犯罪是近年来大学生犯罪中特殊而又常见、发案率较高的一种情绪型犯罪,具有严重的社会危害性。本文根据大学生激情犯罪的特点、产生的原因,探讨如何有效地进行大学生激情犯罪的预测和预防,有针对性地提出矫正措施,旨在解决或减少大... 详细信息

激情犯罪是近年来大学生犯罪中特殊而又常见、发案率较高的一种情绪型犯罪,具有严重的社会危害性。本文根据大学生激情犯罪的特点、产生的原因,探讨如何有效地进行大学生激情犯罪的预测和预防,有针对性地提出矫正措施,旨在解决或减少大学生激情犯罪行为,保障大学生健康成长,促进社会的稳定发展。

关键词：大学生激情犯罪特点原因对策

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论法律援助制度建立过程中的政府责任

福建师范大学学报（哲学社会科学版） 2006年第5期 68-72页

作者：林凤章福建师范大学法学院福建福州350007

法律援助是政府的责任,这在多数实行法律援助制度的国家中已形成共识。文章对法律援助制度建立过程中的政府责任进行了研讨,认为只有由政府来承担法律援助主体责任,成为法律援助制度的设计者、法律援助规范的制定者、法律援助资金的主... 详细信息

法律援助是政府的责任,这在多数实行法律援助制度的国家中已形成共识。文章对法律援助制度建立过程中的政府责任进行了研讨,认为只有由政府来承担法律援助主体责任,成为法律援助制度的设计者、法律援助规范的制定者、法律援助资金的主要提供者、法律援助实施的管理者,才能最低限度地满足公民对法律援助的制度需求。

关键词：法律援助政府责任具体内容

SYNTHESES OF METHYL-AND ETHYL-VINYL SULFOXIDES AND THEIR APPLICATIONS TO MEMBRANE MATERIALS FOR GAS SEPARATION··

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Chinese Chemical Letters 1992年第2期3卷 79-82页

作者： Dong lin JIANG, Yi feng zhang, Hong Jie FU, Zhi Quan SHEN~* Department of Chemistry, Zhejiang University, Hangzhou, 310027

Methyl- and Ethyl- vinyl sulfoxides (MVSO and EVSO) were first synthesized from common organic reagents, i.e. sulfate, thiourea and ethylene oxide in excellent yields. A new facile method for oxidation of vinyl sulfides to corresponing vinyl sulfoxides was developed. Application of those vinyl sulfoxides for synthetic gas separation membranes was acheived and that showed the high permselectivities to SO_2, N_2 and SO_2/N_2 mixture gases.

关键词： PVA SYNTHESES OF METHYL-AND ETHYL-VINYL SULFOXIDES AND THEIR APPLICATIONS TO MEMBRANE MATERIALS FOR GAS SEPARATION GAS