检索结果-南通市图书馆

Cancer Mortality--China, 2018

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

China CDC weekly 2020年第5期2卷 63-68页

作者： Yunning liu Wei wang Jiangmei liu Peng Yin Jinlei Qi jinling You Lijun wang Maigeng Zhou National Center for Chronic and Noncommunicable Disease Control and Prevention Chinese Center for Disease Control and PreventionBeijingChina.

Introduction Cancer is an important public health concern with heavy disease burden in *** 2017,cancer is the leading cause of death,with around 2.60 million deaths,which accounts for 26.07%of all *** study aims to present cancer mortality in China in 2018 to provide evidence for cancer control and *** Mortality data from China Cause of Death Reporting System(CDRS)and population data from National Bureau of Statistics are used for cancer mortality estimation.A descriptive analysis was conducted to demonstrate the results.

关键词： mortality Cancer cancer

Geomorphological regionalization theory system and division methodology of China

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Geographical Sciences 2020年第2期30卷 212-232页

作者： wang Nan CHENG weiming wang Baixue liu Qiangyi ZHOU Chenghu State Key Laboratory of Resources and Environmental Information System Institute of Geographic Sciences and Natural Resources ResearchCASBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application Nanjing 210023China Collaborative Innovation Center of South China Sea Studies Nanjing 210093China

Geomorphological regionalization(geomor-region)and geomorphological type(geomor-type)classification are two core components in the geomorphologic *** remarkable achievements have been made in the study of geomor-region,many deficiencies still exist,such as the inconsistency of landform indicators,the small quantity of division orders,disparities of geomorphological characteristics,differences of mapping results,and the small scale of zoning *** for improved national geomor-regions are therefore needed for the purpose of an enhanced national geo-information *** on theories of geomor-region in China including plate tectonics,crustal features,endogenic and exogenic forced geomorphological features,and regional differentiations of geomor-type,a three-order(major-region,sub-region,and small-region)research program on China’s geomor-regions is proposed on the basis of previous 2013 geomor-region *** major contents of the new geomor-region scheme are:(1)principles of the national multi-order geomor-regions;(2)hierarchical indicator systems of geomor-regions including characteristics of the terrain ladder under the control of tectonic setting,combinations of regional macro-form types,combinations of endogenic and exogenic forces and basic types of morphology,combinations of regional morphological types,and combinations of regional micro-morphological types;(3)naming rules and coding methods of geomor-regions;and(4)precise positioning techniques and methods of multi-order geomor-region divisions based on multi-source *** the new geomor-region theory and division methodology,the partition of national three-order geomor-regions of China was successfully *** geomor-region system divided China into six first-order major-regions,36 second-order sub-regions,and 136 third-order *** addition,a database and management information system of the national geomor-regions were *** research has an impo

关键词： geomorphological regionalization geomorphological types hierarchical system China

Off-design performance of a chemical looping combustion (CLC) combined cycle:effects of ambient temperature

在线全文

学校读者我要写书评

暂无评论

Journal of Thermal Science 2010年第1期19卷 87-96页

作者： jinling Chi Bo wang Shijie Zhang Yunhan Xiao Key Laboratory of Advanced Energy and Power Chinese Academy of Sciences (Institute of Engineering Thermophysics) P. O. Box 2706 Beijing 100190 China Graduate University of the Chinese Academy of Sciences Beijing 100049 China

The present work investigates the influence of ambient temperature on the steady-state off-design thermodynamic performance of a chemical looping combustion(CLC) combined cycle.A sensitivity analysis of the CLC reactor system was conducted,which shows that the parameters that influence the temperatures of the CLC reactors most are the flow rate and temperature of air entering the air *** the ambient temperature variation,three off-design control strategies have been assumed and compared:1) without any Inlet Guide Vane(IGV) control,2) IGV control to maintain air reactor temperature and 3) IGV control to maintain constant fuel reactor temperature,aside from fuel flow rate *** indicate that,compared with the conventional combined cycle,due to the requirement of pressure balance at outlet of the two CLC reactors,CLC combined cycle shows completely different off-design thermodynamic characteristics regardless of the control strategy *** the first control strategy,temperatures of the two CLC reactors both rise obviously as ambient temperature *** control adopted by the second and the third strategy has the effect to maintain one of the two reactors' temperatures at design condition when ambient temperature is above design *** with the second strategy,the third would induce more severe decrease of efficiency and output power of the CLC combined cycle.

关键词： Chemical looping combustion Combined cycle Off-design performance Thermodynamic analysis Ambient temperature

Incidence,Prevalence,and Mortality of Four Major Chronic Non-communicable Diseases—China,1990-2017

在线全文

学校读者我要写书评

暂无评论

China CDC weekly 2019年第3期1卷 32-37页

作者： Peng Yin Jinlei Qi Yunning liu Jiangmei liu jinling You Lijun wang Maigeng Zhou National Center for Chronic and Noncommunicable Disease Control and Prevention Chinese Center for Disease Control and PreventionBeijingChina

Introduction Chronic and non-communicable diseases(NCDs)have become an important public health concern in *** aimed to estimate the incidence,prevalence,and mortality of four major NCDs including cardiovascular disease(CVD),cancer,chronic respiratory diseases(CRD),and diabetes in China during *** The general analytic framework of Global Burden of Diseases Study 2017(GBD 2017)was *** from Disease Surveillance Point System,censuses,and Chinese Center for Disease Control and Prevention Cause-of-Death Reporting System were used for mortality *** surveys,cancer registries,and published studies were used for incidence and prevalence *** In 2017,new cases for CVD,cancer,and diabetes were 13.5,4.6,and 3.3 million,an increase of 120.4%,159.7%,and 57.3%respectively compared with *** were 9.6 million incident cases for CRD in 2017,a 4.9%decrease compared with 1990.A total of 8.1 million people died from cancer,CVD,CRD,and diabetes in China in *** was a substantial decline in age-standardized mortality rate for CRD and a steady but slow decline for CVD and *** 1990-2017,the age-standardized prevalence rate increased by 7.4%,135.2%,and 17.0%for CVD,cancer,and diabetes *** and Implications for Public Health Practice The accumulated prevalence of the four major NCDs are increasing but the age-standardized mortality rate for CVD,cancer,and CRD has been on a decline during *** effective intervention strategies should be developed to deal with the continuously increasing burden caused by NCDs in China.

关键词： prevalence mortality Diseases

The constitutes and isomer distribution of di-(potassium sulfonate)-di-phthalimidomethyl phthalocyanine zinc

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Science Bulletin 2008年第11期53卷 1657-1664页

作者： wang Jian liu Hong XUE JinPing JIANG Zhou CHEN NaiSheng HUANG jinling Institute of Research on Functional Materials Department of Chemistry College of Chemistry and Chemical Engineering FuzhouUniversity Fuzhou 350002 China

Sulfonate and/or phthalimidomethyl phthalocyanine zincs are obtained by the condensation reaction of anhydrous zinc acetate and two precursors, i.e. 4-phthalimidomethyl phthalonitrile and 4-(potassium sulfonated) phthalonitrile. The ZnPcSnPm mixture was separated into 5 components according to the number of substituted sulfonate groups and each component which has the same chemical constituent consists of different regioisomers. An HPLC method in isocratic conditions was developed to exercise quality control and make quantitative analysis of the photosensitizer, di-(potassium sulfonate)-di-phthalimidomethyl phthalocyanine zinc (abbreviated as ZnPcS2P2, here, S represents sulfonate group, P the phthalimidomethyl group and ZnPc the phthalocyanine zinc). Furthermore, by comparing the retention behavior of ZnPcS2P2 with that of ZnPcS2, positional structure of isomers of ZnPcS2P2 was speculated. Reversed-phase HPLC method with TEA-phosphate buffer and DMF as eluents in gradient conditions has been proved to be a powerful tool for the separation of such complex system.

关键词：磺酸钾异构体苯二酰亚氨基甲基酞菁锌缩合反应

Antibiotic Metabolites from the Coral-Associated Actinomycete Streptomyces sp. OUCMDZ-1703

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemistry 2013年第1期31卷 100-104页

作者： Peng Fu Fandong Kong Yuanfei wang Yi wang Peipei liu Guoying Zuo weiming Zhu Key Laboratory of Marine Drugs Ministry of Education of China School of Medicine and Pharmacy Ocean University of China Qingdao Shandong 266003 China Research Center for Natural Medicines Kunming General Hospital PLA Kunming Yunnan 650032 China Yunnan Traditional Chinese Medical College Kunming Yunnan 650500 China

From the oligotrophic culture of a soft coral-associated actinomycetes strain, Streptomyces sp. OUCMDZ-1703, we isolated and identified two new chlorinated polyketides that we named strepchloritides A and B （1 and 2）, three thiazole derivatives known as watasemycin A （3）, pulicatin G （4） and aerugine （5）, along with pyrrole- 2-carboxamide, furan-2-carboxamide and 1-（3,5-dihydroxyphenyl）ethanone. The new structures of 1 and 2 were determined by spectroscopic studies such as 1D- and 2D-NMR and MS analyses, while the known compounds were identified by comparison of the NMR data with those in literatures. The results showed that actinomycete strain OUCMDZ-1703 could use the relative high ratio of chlorine in the oligotrophic medium to synthesize chlorinated natural products. New compounds 1 and 2 displayed cytotoxicity against the MCF-7 ceils with ICs0 values of 9.9 and 20.2 ~tmoloL-1, respectively. Thiazole derivatives 3 and 5 were first found to be active against three clinical strains of methicillin-resistant Staphylococcus aureus （MRSA082, MRSA111 and MRSA234） with the same MIC/MBC values of 7.81/7.81 μg·mL-1.

关键词： coral-associated actinomycetes Streptomyces sp. polychlorinated natural products thiazole deriva-tives cytotoxicity antibiotic methicillin-resistant S. aureus

On the Relation Between Pilot Implementation and Local Legislation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

学术界 2013年第7期 281-285页

作者： wang weiming Law School Shanghai University of Political Science and Law Shanghai 201701

Pilot implementation proposed by the State Council should be taken as an incentive measure not an authorization of the State Council to local *** is the outcome of the exercise of local legislative *** long as the pilot program does not conflict with the Constitution and other Laws,to enact local regulations about pilot implementation will be more conducive to the independent local development.

关键词：地方立法地方性法规试点方案国务院法律宪法

Large electric field-induced strain in the novel BNKTAN-BNBLTZ lead-free ceramics

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2020年第10期42卷 15-22页

作者： Chao wang Qiang Li weiming Zhang Huiqing Fan State Key Laboratory of Solidification Processing School of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi'an 710072China

(1-x)Bi0.5(Na0.82K0.18)0.5Ti0.96(Al0.5Nb0.5)0.04O3-xBi0.46Na0.46Ba0.5La0.02Ti0.97Zr0.03O3 lead-free ceramics(abbreviated as BNKTAN-100x BNBLTZ)was prepared by the conventional solid *** patterns and EDS spectrums revealed that a stable solid solution had been formed between BNBLTZ and *** the introduction of BNBLTZ anti-ferroelectric content,BNKTAN relaxor ferroelectrics exhibited the excellent field-induced-strain for x=0.04 corresponding to electric field-induced strain S^0.505%and normal strain d33*~777 pm/V at 65 kV/*** large strain response was attributed to the emergence of PNRs in the relaxation ***,an excellent fatigue resistance performance was obtained within 105cycles(S=0.505%–0.495%and d33*=777–758 pm/V,65 kV/cm).It suggested that prepared ceramics had the great potential to strain sensor and actuators.

关键词： BNT-based ceramics Ferroelectric properties Strain Fatigue resistance

Precursor-driven structural tailoring of iron oxychloride for enhanced heterogeneous Fenton activity

在线全文

学校读者我要写书评

暂无评论

Frontiers of Chemical Science and Engineering 2023年第10期17卷 1533-1543页

作者： Shengshuo Xu Zhenying Lu jinling wang Guangtuan Huang Hualin wang Xuejing Yang National Engineering Laboratory for Industrial Wastewater Treatment East China University of Science and TechnologyShanghai 200237China State Key Laboratory of Chemical Engineering East China University of Science and TechnologyShanghai 200237China

Iron oxychloride(FeOCl)is a unique layered material with tunable electronic *** conventional synthetic route of chemical vapor transition involves a thermodynamics-driven gas-solid interfacial reaction which often generates macroscopic crystals with stable *** this study,through analyzing the effects of the synthetic parameters on the FeOCl synthesis,we discovered the dominant contribution of theα-Fe_(2)O_(3)precursors on the chemical property of the FeOCl product,and subsequently developed a highly-controllable synthetic route of tailoring the FeOCl structures into small sizes and exposed high-energy facets via a facile and scalable mechanical-chemical *** synthesized products could be systematically tuned by the ball-milling conditions of theα-Fe_(2)O_(3)*** increased milling time,the FeOCl crystallites demonstrated reduced sizes and more exposed(110)***,these smallsized FeOCl catalysts exhibited much faster Fenton-like kinetics than the pristine macroscopic FeOCl ***,FeOCl catalysts with a 12-hour milling time showed nearly 39 times higher efficiency toward phenol degradation than the pristine *** structure-reactivity relationship was further elucidated using the combinatory analysis via density functional theory calculation,electron paramagnetic resonance and radical quenching probe *** work provides a rationale for tailoring the surface structures of FeOCl crystallites for potential applications in environmental catalysis.

关键词： FeOCl mechanical activation heterogeneous Fenton reaction ball milling