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| 1 | 长江入海泥沙的交换和输移过程——兼论泥质区的“泥库”效应显示文摘采用粒度谱的计算方法分析高浊度河口混合环境下悬浮泥沙和表层沉积物的交换过程,研究悬浮泥沙在河口—陆架系统的输移和归宿问题。分析表明:(1)大约有47%的悬浮泥沙沉积在长江口拦门沙海域及水下三角洲前缘,超过50%的悬浮泥沙摆脱河口的'束缚'进入杭州湾以及向南沿浙闽海岸输运,122.5°~123°E是长江悬浮泥沙向东扩散的重要界限。本文提供的粒度谱计算方法可适用于多种潮汐环境的泥沙输运和沉积的定量计算。(2)长江口悬浮泥沙与表层沉积物高交换区(交换率>0.6)主要分布在南槽口外的泥质区和杭州湾附近海域,其中长江口外泥质区的交换率高达0.9以上,说明该区域悬浮泥沙大量参与供沙和造床过程。在10~100年尺度上,长江口南槽口外的泥质区和杭州湾存在着一个显著的沉积中心,其泥沙交换速率可高达2~3cm/a以上。(3)由于受沿岸流和台湾暖流的影响,从长江口输出的大部分悬浮泥沙首先沉积在长江口南槽口外的泥质区,随后在潮流的作用下向长江口、杭州湾和沿海岸向南输运,泥质区充当了长江口系统泥沙输运和入海泥沙向南输送的'泥库'。长江口泥质区既是长江入海泥沙向口外输送的泥沙'汇',也是涨潮输入长江河口和杭州湾、浙闽沿岸泥质带的泥沙'源'。(4)由于长江口外余流向南槽口外汇聚,南槽口外含沙量较高,而且长江口水下三角洲前缘潮滩仍处于缓慢淤涨状态,上述水动力和地貌的综合分析证实了长江口外泥质区的'泥库'效应。在长江入海泥沙减少的背景下,'泥库'对河口地貌发育的贡献明显;随着流域减沙的不可逆转,口门附近的'泥库'将发挥愈来愈重要的向河口系统供沙的功能。 | 刘红 何青 Gert Jan Weltje 陈吉余 | 2011 | 地理学报2011,66,3: | 35 |
| 2 | 葡萄原花青素对感染柔嫩艾美尔球虫肉仔鸡生长性能和免疫功能的影响显示文摘本试验旨在研究饲粮中添加葡萄原花青素(GPC)对感染柔嫩艾美尔球虫肉仔鸡生长性能和免疫功能的影响。选用350只1日龄科宝-500(Cobb-500)健康肉仔鸡(公雏),随机分为5个组,每组7个重复,每个重复10只鸡。空白对照组和负对照组饲喂基础饲粮,试验组分别饲喂在基础饲粮基础上添加7.5、15.0和30.0 mg/kg GPC的试验饲粮。14日龄时,负对照组和3个试验组每只肉仔鸡经口腔攻毒5×10^4个柔嫩艾美尔球虫卵囊,空白对照组每只肉仔鸡灌服同体积的生理盐水。试验期42 d,分为前期(1-21日龄)和后期(22-42日龄)2个阶段。结果表明:1)与空白对照组相比,负对照组肉仔鸡试验各阶段的平均日增重(ADG)均显著降低(P〈0.05),22-42日龄和1-42日龄时的料重比(F/G)显著增加(P〈0.05);饲粮中添加7.5和15.0 mg/kg GPC显著改善了柔嫩艾美尔球虫攻毒引起的22-42日龄和1-42日龄时ADG的降低和F/G的增加(P〈0.05);而饲粮中添加30.0 mg/kg GPC显著降低了22-42日龄时的ADG、平均日采食量(ADFI)和1-42日龄时的ADG(P〈0.05)。2)与负对照组相比,饲粮中添加GPC显著降低了肉仔鸡的盲肠病变评分、血便堆数和球虫卵囊排出数(P〈0.05)。3)饲粮中添加GPC显著抑制了柔嫩艾美尔球虫攻毒引起的肉仔鸡脾脏指数增加(P〈0.05);柔嫩艾美尔球虫攻毒引起T淋巴细胞转化率显著增加(P〈0.05),饲粮中添加7.5和15.0 mg/kg GPC使T淋巴细胞转化率进一步增加(P〉0.05);饲粮中添加7.5和15.0 mg/kg GPC可使B淋巴细胞转化率增加(P〉0.05);柔嫩艾美尔球虫攻毒引起外周血γδT细胞比例显著增加(P〈0.05),饲粮中添加15.0 mg/kg GPC使外周血γδT细胞比例进一步增加(P〉0.05)。4)与空白对照组相比,柔嫩艾美尔球虫攻毒显著增加了回肠上皮内淋巴细胞(IEL)数量和盲肠黏膜分泌型免疫球蛋白A(s Ig A)水平(P〈0.05),饲粮中添加7.5和15.0 mg/kg GPC使IEL数量和s Ig A水平进一步增加(P〈0.05)。综上所述,饲粮中添加GPC可提高感染柔嫩艾美尔球虫肉仔鸡的免疫功能,缓解柔嫩艾美尔球虫感染造成的生长抑制,其中7.5和15.0 mg/kg GPC的抗球虫效果较好。 | 杨金玉 张海军 王晶 岳洪源 武书庚 齐广海 官堃 GERRITS Gert Jan | 2016 | 动物营养学报2016,28,9: | 7 |
| 3 | A Randomized Comparison of Percutaneous Transluminal Coronary Angioplasty by the Radial, Brachial and Femoral Approaches: The Access Study显示文摘 | Ferdinand Kiemeneij Gert Jan Laarman Diego Odekerken Ton Slagboom Ron van der Wieken | 1997 | Journal of the American College of Cardiology1997,,6: | 2 |
| 4 | Anti-tumor necrosis factor treatment restores the gut barrier in Crohn’s disease显示文摘 | Peter Suenaert Veerle Bulteel Liesbeth Lemmens Maja Noman Benny Geypens Gert Van Assche Karel Geboes Jan L Ceuppens Paul Rutgeerts | 2002 | The American Journal of Gastroenterology2002,,8: | 2 |
| 5 | Agent-based modeling of consumer decision making process based on power distance and personality显示文摘 | Omid Roozmand Nasser Ghasem-Aghaee Gert Jan Hofstede Mohammad Ali Nematbakhsh Ahmad Baraani Tim Verwaart | 2011 | Knowledge-Based Systems2011,,7: | 1 |
| 6 | No quick switch to low-carbon energy 显示文摘 | Gert Jan Kramer Martin Haigh | 2009 | Nature2009,,462: | 1 |
| 7 | Integrating the conceptualization and simulation of business process显示文摘 | Vreede D Gert Jan | 2003 | Simulation2003,79,1: | 1 |
| 8 | Reconstruction of the Late Miocene climate of Spain using rodent palaeocommunity successions:an application of end-member modeling显示文摘 | JAN A Van Dam GERT Jan Weltje | 1999 | Palaeogeography Palaeoclimatology Palaeoecology1999,151,: | 1 |
| 9 | Critical analysis of cyanoacrylate in intestinal and colorectal anastomosis显示文摘 | Zhouqiao Wu Geesien S. A. Boersema Konstantinos A. Vakalopoulos Freek Daams Cloe L. Sparreboom Gert‐Jan Kleinrensink Johannes Jeekel Johan F. Lange | 2014 | J. Biomed. Mater. Res2014,,3: | 1 |
| 10 | Stress in African catfish ( Clarias gariepinus ) following overland transportation显示文摘 | Remy Manuel Jeroen Boerrigter Jonathan Roques Jan Heul Ruud Bos Gert Flik Hans Vis | 2014 | Fish Physiology and Biochemistry2014,,1: | 1 |
| 11 | Transradial artery coronary angioplasty显示文摘 | Ferdinand Kiemeneij Gert Jan Laarman Edwin de Melker | 1995 | American Heart Journal1995,,1: | 1 |
| 12 | No quick switch to low-carbon energy显示文摘 | Gert Jan Kramer Martin Haigh | 2009 | Nature2009,,462: | 1 |
| 13 | Food safety and transparency in food chains and networks显示文摘 | Adrie J M Beulens Douwe-Frits Broens Peter Folstar Gert Jan Hofst- ede | 2005 | Food Control2005,,16: | 1 |
| 14 | Chemotherapeutic treatment of bone marrow stromal cells strongly affects their protective effect on acute myeloid leukemia cell survival显示文摘 | Bijan Moshaver Marjolein A. van der Pol August H. Westra Gert J. Ossenkoppele Sonja Zweegman Gerrit Jan Schuurhuis | 2008 | Leukemia & Lymphoma2008,,1: | 1 |
| 15 | Coor- dination of leg muscles during speed skating显示文摘 | Jos J de Koning Gert de Groot Gerrit Jan van Ingen Schenau | 1991 | Biomechanics1991,,24: | 1 |
| 16 | Introduction to the Special Issue:Water grabbing? Focus on (Re) Appropriation of Finite Water Resources显示文摘 | Mehta Lyla Gert Jan Veldwisch Jennifer Franco | | 0,,02: | 1 |
| 17 | Quantitative provenance analysis of sediments: review and outlook显示文摘 | Gert Jan Weltje Hilmar von Eynatten | 2004 | Sedimentary Geology2004,,1: | 1 |
| 18 | Transradial artery Palmaz-Schatz coronary stent implantation: Results of a single-center feasibility study显示文摘 | Ferdinand Kiemeneij Gert Jan Laarman | 1995 | American Heart Journal1995,,1: | 1 |
| 19 | Reconstruction of the Late Miocene climate of Spain using rodent palaeocommunity successions:an application of end-member modeling显示文摘 | Jan A V D Gert J W | 1999 | Palaeogeogra phy Palaeoclimatology Palaeoecology1999,151,: | 1 |
| 20 | Creative cities: Breeding places in the knowledge economy 显示文摘 | HOSPERS GERT -JAN | 2003 | Konwledge Technology & Policy Fall2003,16,3: | 1 |