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47篇 您的检索式:作者名="GAN Quan"
    题名 作者 年代 出处 被引量
1Diurnal variations of the planetary boundary layer height estimated from intensive radiosonde observations over Yichang, China显示文摘By using the eight-times-daily sampling data from an intensive radiosonde observation campaign at Yichang(111°18′E,30°42′N),China in August 2006 and January 2007,the diurnal variation of the planetary boundary layer height determined by using a bulk Richardson(Ri)number approach,was studied in this paper.It was found that the boundary layer heights in both summer and winter months showed diurnal changes and the daily cycle was deeper in summer,which agreed well with the previous studies;the monthly averaged height was 103–1112 m and 89–450 m in summer and winter,respectively;the morning rise began at 0700 LT/1000 LT in summer/winter and the evening transition occurred at 1900 LT in both seasons;the maximum height occurred in the afternoon for most cases,except some peaks found in the winter night;the surface temperature and relative humidity dominated the variations of summer height,while the diurnal variation shown in January 2007 might have some connections with the dynamical processes in the lower troposphere,besides the surface effects.ZHANG YeHui ZHANG ShaoDong HUANG ChunMing HUANG KaiMing GONG Yun GAN Quan 2014Science China(Technological Sciences)2014,57,11:7
2聚合物反胶团萃取氨基酸的研究显示文摘利用德国BASF公司生产的Pluronic型和PluronicR型两类嵌段聚合物制备聚合物反胶团萃取氨基酸 (L -苯丙氨酸和L -异亮氨酸 ) ,探讨了聚合物反胶团对氨基酸的萃取平衡特性。实验表明 ,聚合物反胶团对氨基酸的萃取平衡时间与纯有机溶剂的物理萃取相比差别很小 ,溶质在反胶团外壳部分与其内部水池间的平衡分配系数K都普遍较大 ,另外 ,当氨基酸水溶液的pH值接近等电点时 ,反胶团萃取达到最佳效果。通过理论分析得到如下推断 :聚合物反胶团对两亲性氨基酸的增溶主要在其外壳部分 ,很可能是包裹在聚氧丙烯外壳内或缠绕在聚氧丙烯链之间 ;王运东 施长云 GAN Quan 戴猷元 2002四川大学学报(工程科学版)2002,34,5:7
3Climatology of global gravity wave activity and dissipation revealed by SABER/TIMED temperature observations显示文摘Gravity wave activity and dissipation in the height range from the low stratosphere to the low thermosphere(25–115 km)covering latitudes between 50°S and 50°N are statistically studied by using 9-year(January 22,2002–December 31,2010)SABER/TIMED temperature data.We propose a method to extract realistic gravity wave fluctuations from the temperature profiles and treat square temperature fluctuations as GW activity.Overall,the gravity wave activity generally increases with height.Near the equator(0°–10°),the gravity wave activity shows a quasi-biennial variation in the stratosphere(below 40 km)while from 20°to 30°,it exhibits an annual variation below 40 km;in low latitudes(0°–30°)between the upper stratosphere and the low thermosphere(40–115 km),the gravity wave activity shows a semi-annual variation.In middle latitudes(40°–50°),the gravity wave activity has a clear annual variation below 85 km.In addition,we observe a four-monthly variation with peaks occurring usually in April,August,December in the northern hemisphere and in February,June,October in the southern hemisphere,respectively,above 85 km in middle latitudes,which has been seldom reported in gravity wave activity.In order to study the dissipation of gravity wave propagation,we calculate the gravity wave dissipation ratio,which is defined as the ratio of the gravity wave growth scale height to the atmosphere density scale height.The height variation of the dissipation ratio indicates that strong gravity wave dissipation mainly concentrates in the three height regions:the stratosphere(30–60 km),the mesopause(around 85 km)and the low thermosphere(above 100 km).Besides,gravity wave energy enhancement can be also observed in the background atmosphere.SHUAI Jing ZHANG ShaoDong HUANG ChunMing YI Fan HUANG KaiMing GAN Quan GONG Yun 2014Science China(Technological Sciences)2014,57,5:5
4Observations of gravity wave activity during stratospheric sudden warmings in the Northern Hemisphere显示文摘Arctic stratospheric sudden warming(SSW) with polar vortex displacement and splitting occurred in 2008 and 2009, respectively. The temperature profiles derived from the Constellation Observing System for Meteorology, Ionosphere and Climate(COSMIC) along with NCEP/NCAR reanalysis are used to investigate the gravity wave(GW) variations during these SSW events. Some phenomena are characterized and possible mechanisms are discussed. The GW variations during both types of SSW events shared some similarities. During the warming events, enhanced zonal mean GW amplitudes are detected. The enhancements of GW amplitudes first appeared at higher altitudes and then progressed downward during the major warming events. The downward progressions correspond well with the height variations of the zonal wind reversal, and the enhancements seem to occur at the same time with the wind reversal. The spatial variations of GWs showed evident correlation to the polar vortex. Generally, GWs were enhanced at the edge of the polar vortex where the background wind was strong, whereas the areas with the largest GW amplitudes did not always correspond with those with the strongest background wind. The differences during the two types of SSW are also noticeable. In the 2008 major event, the magnitudes of the zonal mean GW enhancements during the downward progression were relatively stable, whereas in the 2009 major event, a clear reduction was detected as the GW enhancement was progressing downward. Also, the recovery time of the polar vortex was longer in 2009. These differences indicate that different types of SSWs may have different impacts on the GW.JIA Yue ZHANG ShaoDong YI Fan HUANG ChunMing HUANG KaiMing GAN Quan GONG Yun 2015Science China(Technological Sciences)2015,58,6:4
5Early Identification of the Jiangdingya Landslide of Zhouqu Based on SBAS-InSAR Technology显示文摘SBAS-InSAR technology is characterized by the advantages of reducing the influence of terrain-simulation error,time-space decorrelation,atmospheric error,thereby improving the reliability of surface-deformation monitoring.This paper studies the early landslide identification method based on SBAS-InSAR technology.Selecting the Jiangdingya landslide area in Zhouqu County,Gansu Province as the research area,84 ascendingorbit Sentinel-1A SAR images from 2015 to 2019 are collected.In addition,using SBAS-InSAR technology,the rate and time-series results of surface deformation of the landslide area in Jiangdingya during this period are extracted,and potential landslides are identified.The results show that the early landslide identification method based on SBAS-InSAR technology is highly feasible and is a better tool for identifying potential landslides in large areas.YU Haihua CAI Guolin GAN Quan SHEN Dong 2020Earthquake Research in China2020,34,4:4
6(EO_XPO_YEO_X)型嵌段共聚物反胶团形成的影响因素显示文摘通过 (EOXPOYEOX)型嵌段共聚物有机溶液的水增溶实验研究 ,探讨了溶剂、聚合物结构、离子强度和温度对增溶水量及临界胶团浓度 (CMC)的影响 .研究结果表明 ,正辛醇的加入不仅提高了嵌段共聚物 /对二甲苯体系的最大增溶水量 (Wo ,max) ,而且也增大了体系的CMC值 .lg(1/cmc)随聚合物分子单边EO数X增大而线性递增 ,表明亲水基EO的内聚能变在胶团化过程中起着重要作用 .实验研究范围内 ,溶液离子强度小于 1时 ,对反胶团的增溶作用有利 ,一定程度上增大了胶束粒径 .反胶团临界浓度的自然对数lnXCMC与温度T成线性关系 .胶团化过程是一个自发的放热过程 。施长云 王运东 戴猷元 Quan Gan 2002化工学报2002,53,3:3
7Factors Affecting Kyphotic Angle Reduction in Osteoporotic Vertebral Compression Fractures with Kyphoplasty显示文摘Shen Minjie Wang Heng Chen Guangdong Gan Minfeng Yuan Quan Wang Zhidong Liu Ling Yang Huilin 2013Orthopedics (Online)2013,,4:2
8NF-κB p65 Antisense Oligonucleotides May Serve as a Novel Molecular Approach for the Treatment of Patients with Ulcerative Colitis显示文摘Zhi Li De Kui Zhang Wen Quan Yi Qin Ouyang You Qin Chen Hua Tian Gan 2008Archives of Medical Research2008,,8:2
9Research on Data Transmission Based on CC2530 of ZigBee显示文摘Linlin Cuia Yude Liub Wentian Shi Quan Gan Qi Liu 20104th International Conference on Intelligent Information Technology Application:92-942010,4,:1
10Chitosan nanoparticle as protein delivery carrier—Systematic examination of fabrication conditions for efficient loading and release显示文摘Quan Gan Tao Wang 2007Colloids and Surfaces B: Biointerfaces2007,,1:1
11Chinese Physicians and Their Smoking Knowledge, Attitudes, and Practices显示文摘Yuan Jiang Michael K. Ong Elisa K. Tong Yan Yang Yi Nan Quan Gan Teh-wei Hu 2007American Journal of Preventive Medicine2007,,1:1
12Disease burden of adult lung Cancer and iscbaemic heart diseace from passive tobacco smoking in China显示文摘Gan Quan Smith KR Hammond SK 2007Tob Control2007,16,6:1
13Supported ionic liquid membranes in nanopore structure for gas separation and transport studies显示文摘Gan Quan Rooney D Zou Y 2006Desalination2006,199,123:1
14Intranasal immunization with autolysin (LytA) in mice model induced protection against five prevalent Streptococcus pneurnoniae se- rotypes in China显示文摘Zhu Qing Yuan Zhi Yue Lv Hui Quan Gan 2011Immunol Res2011,51,:1
15Chitosan nanoparticle as protein delivery carrier-Systematic examination of fabrication conditions for efficient loading and release 显示文摘Gan Quan Wang Tao 2007Colloids and Surfaces B : Biointerfaces2007,59,1:1
16Modulation of surface charge, particle size and morphological properties of chitosan- TPP nanoparticles intended for gene delivery 显示文摘Gan Quan Wang Tao Colette Cochrane 2005Colloids and Surfaces B : Biointerfaces2005,44,:1
17Modulation of surface charge, particle size and morphological properties of chitosan- TPP nano- particles intended for gene delivery 显示文摘Quan Gan Tao Wang Colette Cochrane 2005Colloids and Surfaces B : Biointerfaces2005,44,23:1
18The Me- thod of Developing Virtual Instrument Platform 显示文摘Kang Jitao Gan Yadong Quan Qingquan 2002Automobile Decentralized Systems2002,,1:1
19An Improved SoS Method for Generating Multiple Uncorrelated Rayleigh Fading Waveforms 显示文摘Yu Gan Quan Xu 2010IEEE Communications Letters (S1089-7798)2010,14,7:1
20Horizontal infiltration method for determining Brooks - Corey model parameters 显示文摘Wang Quan -jiu Horton R Shao Min - gan 2002Soil Science Society of America Journal2002,66,6:1
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