检索结果-南通市图书馆

Journal of Environmental Sciences 2006年第2期18卷 259-262页

作者： zhang bo chen jin-long wang fan zhang wei-ming zhang quan-xing Department of Environmental Engineering Nanjing University Nanjing 210093 China

This paper presents lab-scale experiment carried out to evaluate the correlation between ammonia nitrogen （NH3-N） and p-toluidine using sequencing batch reactor treating synthetic p-toluidine wastewater. The profiles of NH3-N and p-toluidine were traced under the concentration of sucrose in the influent varied from 0 to 500 mg/L, aerated airflow varied from 0.6 to 1.2 L/min and temperature varied from 10 to 25℃, respectively. The results showed that the concentration of NH3-N turned from increase to decrease when p-toluidine was nearly completely biodegraded, so the profile of NH3-N could clearly indicate the endpoint of p-toluidine biodegradation. And the profile of NH3-N was not influenced by the sucrose in the influent, aerated airflow and temperature. It is showed that using ammonia nitrogen as monitoring and control parameter is feasible and reliable and has promising application in amine wastewater treatment by SBR.

关键词： sequencing batch reactor correlation ammonia nitrogen p-toluidine biodegradation

Wide-field auroral imager onboard the Fengyun satellite

在线全文

学校读者我要写书评

暂无评论

Light(Science & Applications) 2019年第1期8卷 776-787页

作者： Xiao-Xin zhang bo chen Fei He Ke-Fei Song Ling-Ping He Shi-Jie Liu quan-Feng Guo Jia-wei Li Xiao-Dong wang Hong-Ji zhang Hai-Feng wang Zhen-wei Han Liang Sun Pei-Jie zhang Shuang Dai Guang-xing Ding Li-Heng chen Zhong-Su wang Guang-wei Shi Xin zhang Chao Yu Zhong-Dong Yang Peng zhang jin-Song wang National Satellite Meteorological Center China Meteorological AdministrationBeijingChina Key Laboratory of Space Weather National Center for Space WeatherChina Meteorological AdministrationBeijingChina Changchun Institute of Optics Fine Mechanics and PhysicsChinese Academy of SciencesChangchunChina State Key Laboratory of Applied Optics Chinese Academy of SciencesChangchunChina Key Laboratory of Earth and Planetary Physics Institute of Geology and GeophysicsChinese Academy of SciencesBeijingChina Institutions of Earth Science Chinese Academy of SciencesBeijingChina

The newly launched Fengyun-3D(FY-3D)satellite carried a wide-field auroral imager(WAI)that was developed by Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences(CIOMP),which will provide a large field of view(FOV),high spatial resolution,and broadband ultraviolet images of the aurora and the ionosphere by imaging the N2 LBH bands of *** WAI consists of two identical cameras,each with an FOV of 68°in the along-track direction and 10°in the cross-track *** two cameras are tilted relative to each other to cover a fan-shaped field of size 130°×10°.Each camera consists of an unobstructed four-mirror anastigmatic optical system,a BaF2 filter,and a photon-counting imaging *** spatial resolution of WAI is ~10 km at the nadir point at a reference height of 110 km above the Earth’s *** sensitivity is>0.01 counts s^(−1) Rayleigh^(−1) pixel^(−1)(140-180 nm)for both cameras,which is sufficient for mapping the boundaries and the fine structures of the auroral oval during storms/*** on the tests and calibrations that were conducted prior to launch,the data processing algorithm includes photon signal decoding,geometric distortion correction,photometric correction,flatfield correction,line-of-sight projection and correction,and normalization between the two *** processed images are compared with DMSP SSUSI *** agreement between the images that were captured by two instruments demonstrates that the WAI and the data processing algorithm operate normally and can provide high-quality scientific data for future studies on auroral dynamics.

关键词： storm correction field

Singlet pairing gaps of neutrons and protons in hyperonic neutron stars

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Research in Astronomy and Astrophysics 2015年第5期15卷 725-732页

作者： Yan Xu cheng-Zhi Liu Cun-bo fan xing-wei Han Xiao-Jun zhang ming-Feng Zhu Hong-Yan wang Guang-Zhou Liu Changchun Observatory National Astronomical Observatories Chinese Academy of Sciences College of Physics Jilin University College of Physics Beihua University

The ^1 S0 nucleonic superfluids are investigated within the relativistic meanfield model and Bardeen-Cooper-Schrieffer theory in hyperonic neutron stars. The ^1 S0 pairing gaps of neutrons and protons are calculated based on the Reid soft-core interaction as the nucleon-nucleon interaction. In particular, we have studied the influence of degrees of freedom for hyperons on the ^1 S0 nucleonic pairing gap in neutron star matter. It is found that the appearance of hyperons has little impact on the baryonic density range and the size of the ^1S0 neutronic pairing gap; the ^1S0 protonic pairing gap also decreases slightly in this region where ρB = 0.0-0.393 fm^-3. However, if baryonic density becomes greater than 0.393 fm^-3, the ^1S0 protonic pairing gap obviously increases. In addition, the possible range for a protonic superfluid is obviously enlarged due to the presence of hyperons. In our results, the hyperons change the 1 So protonic pairing gap, which must change the cooling properties of neutron stars.

关键词： dense matter -- (stars) pulsars general --equation of state

Safety and immunogenicity of a recombinant COVID-19 vaccine(Sf9 cells)in healthy population aged 18 years or older:two single-center,randomised,double-blind,placebo-controlled,phase 1 and phase 2 trials

在线全文

学校读者我要写书评

暂无评论

Signal Transduction and Targeted Therapy 2021年第8期6卷 2550-2560页

作者： fan-Yue Meng fan Gao Si-Yue Jia Xiang-Hong Wu jing-Xin Li Xi-Ling Guo Jia-Lu zhang bo-Pei Cui Zhi-ming Wu ming-wei wei Zhi-long Ma Hai-Lin Peng Hong-xing Pan Lin fan jing zhang Jiu-Qin Wan Zhong-Kui Zhu Xue-Wen wang Feng-Cai Zhu NHC Key Laboratory of Enteric Pathogenic Microbiology Jiangsu Provincial Center for Disease Control and PreventionNanjingChina China National Institute for Food and Drug Control BeijingChina Sheyang County Center for Disease Control and Prevention YanchengChina Jiangdu District Center for Disease Control and Prevention YangzhouChina Taizhou Center for Disease Control and Prevention TaizhouChina Jiangsu Taizhou Peopled Hospital TaizhouChina Shanghai Canming Medical Technology Co. LtdShanghaiChina

COVID-19 vaccines from multiple manufacturers are needed to cope with the problem of insufficient *** did two singlecenter,randomised,double-blind,placebo-controlled phase 1 and phase 2 trials to assess the safety,tolerability and immunogenicity of a recombinant COVID-19 vaccine(Sf9 cells)in healthy population aged 18 years or older in *** participants were enrolled,the ratio of candidate vaccine and placebo within each dose group was 3:1(phase 1)or 5:1(phase 2).From August 28,2020,168 participants were sequentially enrolled and randomly assigned to receive the low dose vaccine,high dose vaccine or placebo with the schedule of 0,28 days or 0,14,28 days in phase 1 *** November 18,2020,960 participants were randomly assigned to receive the low dose vaccine,high dose vaccine or placebo with the schedule of 0,21 days or 0;14,28 days in phase 2 *** most common solicited injection site adverse reaction within 7 days in both trials was *** most common solicited systematic adverse reactions within 7 days were fatigue,cough,sore throat,fever and *** antibodies and neutralising antibodies increased at 14 days,and peaked at 28 days(phase 1)or 30 days(phase 2)after the last dose *** GMTs of neutralising antibody against live SARS-CoV-2 at 28 days or 30 days after the last dose vaccination were highest in the adult high dose group(0,14,28 days),with 102.9(95%Cl 61.9-171.2)and 102.6(95%Cl 75.2-140.1)in phase 1 and phase 2 trials,*** T-cell response peaked at 14 days after the last dose vaccination in phase 1 *** vaccine is safe,and induced significant immune responses after three doses of vaccination.

关键词： fatigue phase double

Direct Urca processes involving hyperons in neutron star matter

维普期刊数据库评论

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 2014年第3期59卷 273-278页

作者： Yan Xu Guang-Zhou Liu cheng-Zhi Liu Cun-bo fan xing-wei Han Xiao-Jun zhang Hong-Yan wang ming-Feng Zhu Yu Meng Changchun Observatory National Astroomical ObservatoriesChinese Academy of Sciences Center for Theoretical Physics Jilin University College of Physics Beihua University College of Optical and Electronical Information Changchun University of Science and Technology

The presence of the isovector scalar interaction in neutron star matter is considered by exchangingδmeson;we study the effects ofδmesons on the direct Urca processes involving *** calculation is based on the framework of the relativistic mean field *** our analysis,the hyperon direct Urca processes under beta equilibrium are open at lower densities due toδmesons,which create a larger energy gap between two baryons in the ***δmeson leads to an obvious enhancement of the neutrino emissivity for the hyperon direct Urca *** particular,the relativistic neutrino emissivity is found to be substantially larger than predicted in the nonrelativistic approach whetherδmesons appear in an neutron star or *** our results,δmesons not only change the baryons properties,but also result in more rapid cooling rate of neutron stars by hyperon direct Urca processes.

关键词：中子星物质超子相对论平均场理论同位旋矢量相互作用非相对论中微子发射率

^(1)S_(0) Nucleon Superfluidity in Neutron Star Matter

在线全文

学校读者我要写书评

暂无评论

Chinese Physics Letters 2013年第6期30卷 63-66页

作者： XU Yan LIU Guang-Zhou LIU cheng-Zhi fan Cun-bo HAN xing-wei ZHU ming-Feng wang Hong-Yan zhang Xiao-Jun Changchun Observatory National Astronomical ObservatoriesChinese Academy of SciencesChangchun 130117 Center for Theoretical Physics Jilin UniversityChangchun 130012 College of Physics Beihua UniversityJilin 132013

We investigate the nucleon superfluidity in the^(1)S_(0)channel in neutron star matter using the relativistic mean field theory and the BCS *** discuss particularly the influence of the isovector scalar interaction which is considered by exchangingδmeson on the nucleon *** is found that theδmeson leads to a growth of the nucleon^(1)S_(0)pairing energy gaps in a middle density range of the existing nucleon *** addition,when the densityρB>0.36 fm^(-3),the proton^(1)S_(0)pairing energy gap obviously *** density range of the proton^(1)S_(0)superfluidity is narrowed due to the presence ofδ*** our results,theδmeson not only changes the EOS and bulk properties but also changes the cooling properties of neutron stars.

关键词： theory. meson

Accumulated Clinical Experiences from Successful Treatment of 1377 Severe and Critically Ill COVID-19 Cases

在线全文

学校读者我要写书评

暂无评论

Current Medical Science 2020年第4期40卷 597-601页

作者： Yong GAO Hai-bo QIU Shu ZHOU Zhen-ning wang Jian-chu zhang Zheng-liang zhang Zhao-xin QIAN Hong-bo wang Shi-huan YU Yi-feng LUO Ya dan wang Zhuang LIU wei-ci wang ming JIA Li-ming zhang Yu zhang Yang jin Yong zhang Yong LIU Zi-hua ZHOU Ying SU Hui-qing LI wei-min XIAO Kai HUANG Ping HE Gang LI Zhao-hui FU Shi LIU Neng xing LIN fan-jun chenG Union Hospital Tongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022China Zhongda Hospital of Souheast University Nanjing 210009China The First Affiliated Hospital of China Medical University Shenyang 110001China The Second Affiliated Hospital of Xi'an Jiaotong University Xi'an 710004China Xiangya Hospital of Zhongnan University Changsha 410008China The First Afiliated Hospital of Harbin Medical University Harbin 150001China The First Affiliated Hospital of Sun Yat-sen University Guangzhou 510080China Beijing Friendship Hospital of Capital Medical University Beijing 100050China Beijing Anzhen Hospital of Capital Medical University Beijing 100029China Beijing Chaoyang Hospital of Capital Medical University Beiing 100020China

Summary:In late December 2019,COVID-19 was firstly recognized in Wuhan,China and spread rapidly to all of the provinces of *** West Campus of Wuhan Union Hospital,the designated hospital to admit and treat the severe and critically ill COVID-19 cases,has treated a large number of such patients with great success and obtained lots of valuable experiences based on the Chinese guideline(V7.0).To standardize and share the treatment procedures of severe and critically ill cases,Wuhan Union Hospital has established a working group and formulated an operational recommendation,including the monitoring,early warning indicators,and several treatment principles for severe and critically ill *** treatment experiences may provide some constructive suggestions for treating the severe and critically ill COVID-19 cases all over the world.

关键词： 2019-nCoV COVID-19 pneumonia treatment guidelines

The Lyman-alpha Solar Telescope(LST) for the ASO-S mission——Ⅱ. design of LST

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Research in Astronomy and Astrophysics 2019年第11期19卷 33-48页

作者： bo chen Hui Li Ke-Fei Song quan-Feng Guo Pei-Jie zhang Ling-Ping He Shuang Dai Xiao-Dong wang Hai-Feng wang Chun-long Liu Hong-Ji zhang Guang zhang Yunqi wang Shi-Jie Liu Hong-Xin zhang Lei Liu Shi-Lei Mao Yang Liu Jia-Hao Peng Peng wang Liang Sun Yang Liu Zhen-wei Han Yan-long wang Kun Wu Guang-xing Ding Peng Zhou Xin Zheng ming-Yi Xia Qing-Wen Wu jin-Jiang Xie Ya chen Shu-Mei Song Hong wang bo Zhu Chang-bo Chu Wen-Gang Yang Li Feng Yu Huang wei-Qun Gan Ying Li jing-wei Li Lei Lu Jian-Chao Xue Bei-Li Ying ming-Zhe Sun cheng Zhu wei-Min Bao Lei Deng Zeng-Shan Yin Changchun Institute of Optics FineMechanics and PhysicsChinese Academy of SciencesChangchun 130033China State Key Laboratory of Applied Optics Changchun 130033China Key Laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210034China School of Astronomy and Space Science University of Science and Technology of ChinaHefei 230026China Xi’an Institute of Optics and Precision Mechanics Chinese Academy of SciencesXi’an 710119China Shandong University Weihai 264209China Innovation Academy for Microsatellites Chinese Academy of SciencesShanghai 201210China

As one of the three payloads for the Advanced Space-based Solar Observatory(ASO-S)mission,the Lyman-alpha(Lyα)Solar Telescope(LST)is composed of three instruments:a Solar Corona Imager(SCI),a LyαSolar Disk Imager(SDI)and a full-disk White-light Solar Telescope(WST).When working in-orbit,LST will simultaneously perform high-resolution imaging observations of all regions from the solar disk to the inner corona up to 2.5 R⊙(R⊙stands for the mean solar radius)with a spatial resolution of 4.8′′and 1.2′′for coronal and disk observations,respectively,and a temporal resolution of 30–120 s and 1–120 s for coronal and disk observations,*** maximum exposure time can be up to20 s due to precise pointing and image stabilization *** the three telescopes of LST,SCI is a dual-waveband coronagraph simultaneously and independently observing the inner corona in the HI Lyα(121.6±10 nm)line and white light(WL)(700±40 nm)wavebands by using a narrowband Lyαbeam splitter and has a field of view(FOV)from 1.1 to 2.5 R⊙.The stray-light suppression level can attain<10^-6 B⊙(B⊙is the mean brightness of the solar disk)at 1.1 R⊙and≤5×10^-8 B⊙at 2.5 R⊙.SDI and WST are solar disk imagers working in the Lyαline and 360.0 nm wavebands,respectively,which adopt an off-axis two-mirror reflective structure with an FOV up to 1.2 R⊙,covering the inner coronal edge area and relating to coronal *** present the up-to-date design for the LST payload.

关键词： telescopes—instrumentation high angular resolution—Sun flares—Sun coronal mass ejections(CMEs)—Sun UV radiation

A tuning system for BEPC II

在线全文

学校读者我要写书评

暂无评论

Chinese Physics C 2013年第8期37卷 64-68页

作者： Mi Zheng-Hui Sun Yi Pan wei-Min wang Guang-wei Li Zhong-quan Dai Jian-Ping Ma Qiang Lin Hai-Ying Xu bo Huang Hong wang Qun-Yao Xu Yu-Fen Zhao Guang-Yuan Huang Tong-ming Sha Peng zhang Xin-Ying Meng fan-bo Li Han chen Xu Zhao Dan-Yang zhang Juan Peng Ying-Hua University of Chinese Academy of Sciences Beijing 100049 China Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China

The tuning system plays a very important role when a superconducting cavity is in operation. It cooperates with other control loops to adjust the cavity frequency with high precision, reduce the reflection power, guarantee the stability of beam, and ensure the safety of the superconducting cavity. This paper focuses mainly on the tuning system working principle, the working state and problems that Beijing Electron Positron Collider （BEPC ｜I ） has encountered during operation.

关键词： tuning system 500 MHz cavity tuner frequency tuner

Was chicken domesticated in northern China?New evidence from mitochondrial genomes

在线全文

学校读者我要写书评

暂无评论

Science Bulletin 2018年第12期63卷 743-746页

作者： Xun-He Huang Ya-Jiang Wu Yong-wang Miao Min-Sheng Peng xing chen Dan-Lin He Chatmongkon Suwannapoom Bing-wang Du Xian-Yao Li Zhuo-Xian Weng Si-Hua jin Jiao-Jiao Song ming-Shan wang Jie-bo chen wei-Na Li Newton Otieno Otecko Zhao-Yu Geng Xiang-Yong Qu Yan-Ping Wu Xiu-Rong Yang Jie-Qiong jin Jian-Lin Han Fu-Sheng Zhong Xi-quan zhang Ya-Ping zhang School of Life Sciences.flaying University.Meizhou 514015.China State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan Yunnan UniversityKunming 650091China Faculty of Animal Science and Technology.Yunnan Agricultural University.Kunming 650201.China State Key Laboratory of Genetic Resources and Evolution and Yunnan Laboratory of Molecular Biology of Domestic Animals.kunming Institute of Zoology.Chinese Academy of Sciences.Kunming 650223.China College of Animal Sciences.South China Agricultural University.Guangzhou 510642.China School of Agriculture and Natural Resources.University of Phayao.Phayao 56000.Thailand College of Agriculture.Guangdong Ocean University.Zhanjiang 524088.China College of Animal Science and Technology.Shandong Agricultural University.Taian 271018.China College of Animal Science and Technology.Hunan Agricultural University.Changsha 410128.China College of Animal Science and Technology.Anhui Agricultural University.Hefei 230036.China Institute of Animal Science.Jiangxi Academy of Agricultural Sciences.Nanchang 330200.China College of Animal Science and Technology.Guangxi University.Nanning 530004.China Kunming College of Life Science.University of Chinese Academy of Sciences.Kunming 650204.China Southeast Asia Biodiversity Research Institute.Chinese Academy of Sciences(CAS-SEABRI).Yezin 05282.Myanmar CAAS-ILRI Joint Laboratory on Livestock and Forage Genetic Resources.Institute of Animal Science.Chinese Academy of Agricultural Sciences(CAAS).Beijing 100193.China International Livestock Research Institute(ILRI).Nairobi 00100.Kenya

The timing and location of chicken(Gallus gallus domesticus)domestication have remained controversial for over a century[1].Several researchers have proposed China as one of the early centers for chicken domestication[2].This is based on a few archaeological‘‘chicken"remains discovered in China(Table S1).Recently,one investigation detected mitochondrial DNA(mt DNA)haplotypes

关键词：鸡肉中国染色体驯养证据研究人员职业人员 DNA