检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

大丽轮枝菌毒素致萎活性成分的研究

真菌学报 1990年第1期9卷 69-72页

作者：章元寿王建新方中达南京农业大学

测定大丽轮枝菌(Vertic illium dahliae)Kleb.)不同致病力类型的5个菌株毒素的成分,试验结果表明各菌株的毒素都含有蛋白质、多糖和脂类物质,并发现致病力强的菌株毒素所含的蛋白质和多糖的量高于致病力弱的菌株毒素,而脂类物质的量却... 详细信息

测定大丽轮枝菌(Vertic illium dahliae)Kleb.)不同致病力类型的5个菌株毒素的成分,试验结果表明各菌株的毒素都含有蛋白质、多糖和脂类物质,并发现致病力强的菌株毒素所含的蛋白质和多糖的量高于致病力弱的菌株毒素,而脂类物质的量却低于弱菌株毒素。经过高温(100℃,10分钟)和蛋白酶(37℃,6小时)处理后的各菌株毒素则不能使棉花致萎,说明毒素中的蛋白质组分在毒素对棉花的致萎作用中占有重要的地位。

关键词：大丽轮枝菌毒素致萎活性蛋白酶

Success of intravenous immunoglobulin and steroids in managing severe COVID-19 following lung transplantation:A case report

在线全文

学校读者我要写书评

暂无评论

World Journal of Transplantation 2025年第1期15卷 178-184页

作者： Yen-shou Kuo Kuan-Hsun Lin Ying-Yi Chen yuan-Ming Tsai Ti-Hui Wu Hsu-Kai Huang Tsai-wang Huang Division of Thoracic Surgery Department of SurgeryTri-Service General HospitalNational Defense Medical CenterTaipei 114202Taiwan

BACKGROUND Coronavirus disease 2019(COVID-19)pneumonia with severe septic shock and acute respiratory distress syndrome(ARDS)are critical illnesses for patients following *** immunoglobulin(IVIG)plays a role in both immune support and inflammation control,especially in immunocompromised *** case report describes the first successful experience using IVIG and pulse steroids to manage this critical condition following lung *** SUMMARY A 65-year-old male patient reported a history of chronic obstructive pulmonary disease and poor lung function and received bilateral sequential lung ***,he developed COVID-19 pneumonia,severe septic shock,and *** recovered from this critical condition after empirical antibiotics administration and veno-venous extracorporeal membrane oxygenation,in addition to IVIG and pulse *** IVIG is a valuable adjunct in managing severe sepsis in lung transplant recipients after COVID-19 *** aim,for the first time,to report the success of such a management approach for COVID-19 ARDS and sepsis in the post-lung transplant *** further investigations,this is a starting point for wider analysis of such an approach in this setting and consequently helps guide clinical practice for such a challenging patient population moving forward.

关键词： COVID-19 Septic shock Intravenous immunoglobulin Lung transplantation Post-transplant complications Case report

Decreasing Trend of Western North Pacific Tropical Cyclone Inner-Core Size over the Past Decades

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

Journal of Meteorological Research 2021年第4期35卷 635-645页

作者： Hanrui shou Tim LI yuan SUN Lu wang Jia LIU Key Laboratory of Meteorological Disaster Ministry of Education/Joint International Research Laboratory of Climate and Environmental ChangeNanjing University of Information Science&TechnologyNanjing 210044China International Pacific Research Center and Department of Atmospheric Sciences University of Hawaii at ManoaHonoluluHI96822USA College of Meteorology and Oceanography National University of Defense TechnologyNanjing 211101China

Studies on tropical cyclone(TC)inner-core size have become increasingly active in recent ***,few studies have investigated the trend of TC inner-core ***,we introduce a new index to measure TC inner-core size and calculate the observed *** index can greatly reduce the influence of data heterogeneity and *** also considers public concern because the new index is mainly determined by the inner-core size of strong TCs,which attract more public attention than weak *** results show that in the past decades,TC inner-core size has a significant downtrend that is significant above the 99%confidence level when the new index is *** also show that this trend is probably related to the increase in TC intensity and relatively small inner-core size of strong ***,relative sea surface temperature(SST)is assumed to make contributions to the downtrend of TC inner-core size,which has a significant negative correlation with the new index.

关键词： tropical cyclone(TC) inner-core size trend intensity

Trial application of the envelope method to the potential ambiguity problem

在线全文

学校读者我要写书评

暂无评论

Nuclear Science and Techniques 2024年第1期35卷 73-80页

作者： Li-yuan Hu Yu-shou Song Fundamental Science on Nuclear Safety and Simulation Technology Laboratory Harbin Engineering UniversityHarbin 150001China College of Nuclear Science and Technology Harbin Engineering UniversityHarbin 150001China Key Laboratory of Nuclear Safety and Advanced Nuclear Energy Technology Ministry of Industry and Information TechnologyHarbin 150001China

The optical potential ambiguity is a long-standing problem in the analysis of elastic scattering *** a specific collid-ing system,ambiguous potential families can lead to different behaviors in the nearside and farside scattering *** contrast,the envelope method can decompose the experimental data into two components with negative and positive deflection angles,***,a question arises as to whether the comparison between the calculated nearside(or farside)component and the derived positive-deflection-angle(or negative-deflection-angle)component can help analyze the potential ambiguity *** this study,we conducted a trial application of the envelope method to the potential ambiguity *** envelope method was improved by including uncertainties in the experimental *** colliding systems of 16O+28Si at 215.2 MeV and 12C+12C at 1016 MeV were considered in the *** each colliding system,the angular distribution experimental data were described nearly equally well by two potential sets,one of which is“surface transpar-ent”and the other is *** calculated angular distributions were decomposed into nearside and farside scattering *** the improved envelope method,the experimental data were decomposed into the positive-deflection-angle and negative-deflection-angle components,which were then compared with the calculated nearside and farside *** capability of the envelope method to analyze the potential ambiguities was also discussed.

关键词： Elastic scattering Optical potential ambiguities Envelope method Nearside/farside decomposition

Robust Multiparty Quantum Secret Key Sharing Over Two Collective-Noise Channels via Three-Photon Mixed States

在线全文

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2006年第4X期46卷 607-609页

作者： wang Zhang-Yin yuan Hao GAO Gan shou-Hua School of Physics and Material Science Anhui University Hefei 230039 China

We present a robust （n, n）-threshold scheme for multiparty quantum secret sharing of key over two collectivenoise channels （i.e., the collective dephasing channel and the collective rotating channel） via three-photon mixed states, In our scheme, only if all the sharers collaborate together can they establish a joint key with the message sender and extract the secret message from the sender＇s encrypted message. This scheme can be implemented using only a Bell singlet, a one-qubit state and polarization identification of single photon, so it is completely feasible according to the present-day technique.

关键词： multiparty quantum secret key sharing collective-noise channel

Multiparty-Controlled Remote Preparation of Two-Particle State

在线全文

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2009年第11期52卷 848-852页

作者： HOU Kui wang Jing yuan Hao SHI shou-Hua Department of Mathematics ＆ Physics Anhui University of Architecture Hefei 230601 China School of Physics ＆： Material Science Anhui University Hefei 230039 China Department of Mathematics and Physics West Anhui University Lu＇an 237012 China

We propose a scheme for multiparty-controlled remote preparation of the two-particle state by using two non-maximally Greenberger-Horne-Zeilinger states as quantum channel. Our scheme consists of one sender and n remote receivers. It will be shown that the sender can help either one of the n receivers to remotely preparation the original state with the appropriate probability, and the sender Alice＇s two-particle projective measurement and the controllers＇ single-particle product meazurements are needed. We also obtained the probability of the successful remote state preparation.

关键词： remote state preparation two-particle state multiparty

MOTION OF TRACER PARTICLES IN A CENTRIFUGAL PUMP AND ITS TRACKING CHARACTERISTICS

在线全文

学校读者我要写书评

暂无评论

Journal of Hydrodynamics 2012年第5期24卷 785-793页

作者： LI Ya-lin yuan shou-qi TANG Yue yuan Jian-ping Research Center of Fluid Machinery Engineering and Technology Jiangsu University Zhenjiang 212013 China

The Basset-Boussinesq-Oseen （BBO） equation can be used for most flows to trace the motion of a particle, but in a centrifugal pump, among the forces that act on the particles, one should also include those due to the impeller rotation, as additional effects. This paper firstly reviews various approximations of the BBO equation for the motion of dispersion particles in a viscous fluid. Then based on the motion equation for particles in low Reynolds number centrifugal pumps, a formula for calculating the tracking characteristics of tracer particles is deduced through the Fourier integral transformation. After that the deviations of the particle motion from the fluid motion, as predicted by the various approximations, are discussed and compared. At last, with an emphasis on the Particle Image Velocimetry （PIV） results, the tracking characteristics of particles are estimated. Also, advantages and disadvantages of different tracer particles are discussed and suitable tracer particles for application in PIV studies for flow fields in centrifugal pumps are suggested.

关键词： tracer particles equations of motion tracking characteristics centrifugal pump Particle Image Velocimetry (PIV)

The mini-QSO's contribution to cosmic reionization

在线全文

学校读者我要写书评

暂无评论

Research in Astronomy and Astrophysics 2010年第3期10卷 199-210页

作者： Ying-Ying wang Lei wang shou-Ping Xiang Yu wang Jing-Meng Hao Ye-Fei yuan Center for Astrophysics University of Science and Technology of China Hefei 230026 China Shanghai Astronomical Observatory Joint Institute for Galaxy and Cosmology （JOINGC） of SHAO and USTC Shanghai 200030 China

By employing an improved simulation of the evolution of black holes （BHs） based on the merger tree of dark matter halos, we explore the relationship between the central BH mass Mbh and velocity dispersion σ＊ at high redshift z ≥ 6 and quantify the mini-QSO＇s （with BH mass M = 200 - 105M⊙） contribution to cosmic reionization. The simulation demonstrates how seed BHs migrate onto the MBH-σ＊ relation by merging with each other and accreting gas at z ≥ 6： 1. The correlation between BHs and their host halos increases as the BHs grow; 2. The slope, i.e. Ф = dlog（Mbh）/dlog（σ＊） in the relationship, is insensitive to the redshift at z 〉 6. In agreement with previous work, we find that mini-QSOs＇ ionizing capability to the Universe lies in the range - 25% - 50% if early miniquasars have extremely high duty cycles, i.e. P（z 〉 6） - 0.9 - 1.

关键词： cosmology: theory -- galaxies: evolution

相转移催化反应研究 Ⅱ.相转移催化产生的二卤卡宾的环加成反应动力学研究

在线全文

学校读者我要写书评

暂无评论

化学学报 1986年第5期44卷 431-436页

作者：盛怀禹林守渊王执中陈耀焕中国科学院上海有机化学研究所中国科学院上海有机化学研究所上海

本文研究了在50％NaOH,CH2Cl2体系中相转移催化产生的二氯及二溴卡宾与对位取代的苯乙烯反应的相对速率常数krel,并用Brown式(lgkrel=lgk0+σ+P+)进行了线性相关分析.在此条件下,二氯及二溴卡宾都具有亲电性,其中二氯卡宾的选择性大于... 详细信息

本文研究了在50％NaOH,CH2Cl2体系中相转移催化产生的二氯及二溴卡宾与对位取代的苯乙烯反应的相对速率常数krel,并用Brown式(lgkrel=lgk0+σ+P+)进行了线性相关分析.在此条件下,二氯及二溴卡宾都具有亲电性,其中二氯卡宾的选择性大于二溴卡宾.本文还测定了上述相转移反应中,反应物烯烃、溴仿浓度随时间变化的情况,并用动力学公式对所得的曲线进行了分析,得出在此条件下,反应为二级,其中对烯烃和溴仿各为一级.溴仿过量时,反应对烯烃呈准一级.

关键词：苯乙烯峰面积环加成反应相转移催化相对速率常数二氯卡宾卡宾反应动力学研究