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| 1 | U.S. GEOLOGICAL SURVEY PROGRAMS AND INVESTIGATIONS RELATED TO SOIL AND WATER CONSERVATION显示文摘The U.S. Geological Survey has a rich tradition of collecting hydrologic data, especially for fluxes of water and suspended sediment, that provide a foundation for studies of soil and water conservation. Applied and basic research has included investigations of the effects of land use on rangelands, croplands, and forests; hazards mapping; derivation of flood and drought frequency, and other statistics related to streamflow and reservoir storage; development and application of models of rainfall-runoff relations, chemical quality, and sediment movement; and studies of the interactive processes of overland and channel flow with vegetation. Networks of streamgaging stations and (or) sampling sites within numerous drainage basins are yielding information that extends databases and enhances the ability to use those data for interpretive studies. | W. R. OSTERKAMP and J. R. GRAY Research Hydrologist, U. S. Geological Survey, 1675 W. Anklam Road, Tucson, AZ 85745 U. S. A. Hydrologist, U. S. Geological Survey, 415 National Center, Reston, VA 20192 U. S. A. | 2001 | International Journal of Sediment Research2001，16，3： | 22 |
| 2 | Confocal microscopic evaluation of cornea after AquaLase liquefaction cataract extraction显示文摘AIM: The most recent and innovative AquaLase liquefaction technology has offered an alternative to lens extraction.Many studies have investigated its functions and advantages.This article focuses on evaluating the in vivo microscopic cornea changes after AquaLase liquefaction by using a laser confocal microscope.METHODS: In this perspective,randomized case study,37 eyes of 35 patients submitted to cataract surgery were chosen to undergo AquaLase liquefaction cataract extraction.Each patient was assessed before the operation,on the 1st,7th,and 30th postoperative days,and 6 months after the cataract extraction.The morphologies and quantitative comparisons of corneal cells and corneal nerves layer by layer were evaluated in vivo with the Heidelberg Retina Tomograph III-Rostock Cornea Module (HRT-III RCM) confocal microscope.ANOVA and Post-Hoc Bonferroni test were carried out to compare the results preand post-operation.RESULTS: ANOVA results indicated no post-operation changes for epithelium and anterior stroma cells.Irregular segments of sub-basal nerve fiber were most pronounced seven days post-operation.In the mid and posterior stroma,keratocytes were obvious compared with the preoperative condition.Corneal endothelium cells became obviously swollen in cytoplasm and nucleus.The mid and posterior stroma cell density decreased from the 1st to 7th postoperative days (P <0.05).The corneal endothelium cell density decreased (P <0.05) and did not revert to the preoperative level after six months (P <0.05).CONCLUSION: Slight microstructural abnormalities were identified in the corneal recovery process after AquaLase liquefaction.AquaLase liquefaction cataract extraction is safe for cornea. | Jiang-Yue Zhao 1,Ming-Wu Wang 2,Qi Sun 1,Jin-Song Zhang 1 1 Eye Hospital of China Medical University Department of Ophthalmology,the Fourth Affiliated Hospital of China Medical University Provincial Key Laboratory of Lens Research,Liaoning,China 2 Department of Ophthalmology and Vision Science,the University of Arizona,Tucson,Arizona,USA | 2011 | International Journal of Ophthalmology(English edition)2011，4，3： | 2 |
| 3 | Defining myocardial infarction:Will the real myocardial in infarctionplease stand up ?显示文摘 | Joseph S Alpert Tucson | 2003 | American Heart Journal2003，9，： | 1 |
| 4 | SOME RECENT PROGRESS IN STUDIES ON ACTIVE CONTROL OF WALL-JET FLOWS显示文摘Active control of wall his is important in both application and basic researches. In order to establish a solid background for the expected application,it is necessary to perform detailed studies on the base nows,on their stability characteristics and on the identification technique of coherent structures. This paper is a summarizing article rather than a detailed technical report, Its main purpose is just to introduce the recent progress in the related area. | Zhou Mingde.(Aerospace and Mechanical Engineering,The University of Arizona Tucson,Arizona 85721,USA) | 1994 | Transactions of Nanjing University of Aeronautics and Astronautics1994，11，2： | 1 |
| 5 | Obstetric emergencies and anesthetic management显示文摘 | Palmer C Tucson MD Arizona | 2008 | American Society ofAnesthesiologists Annual meeting refiesher course lecture2008，140，： | 1 |
| 6 | Defining myocardial infarction : 'Will the real myocardial infarction please stand up?' 显示文摘 | Joseph S Alpert Tucson | 2003 | American Heart Journal2003，9，： | 1 |
| 7 | Image quality man-agement for the Super Hi - Vision system at the Kyushu National Museum显示文摘 | Tucson AZ: Assoc Computing Ma- chinery Masaoka K Kawakita M Sugawara M | 2006 | IEICE Transactions2006，89，11： | 1 |
| 8 | DeFining myocardial infarction:'Wi/lthe real myocardial infarction please stand up?'显示文摘 | Joseph S Alpert Tucson | 2003 | American Heart Journa12003，9，： | 1 |
| 9 | MODELING SEDIMENT PROCESSES ON SMALL WATERSHEDS:A CONCEPTUAL FRAMEWORK Ⅰ. BROAD SHALLOW FLOW PROCESSE显示文摘A conceptual modeling framework for developing process-based mathematical models of sediment generation, transport, and deposition on broad shallow flow areas is presented. The governing equations relevant to process-based modeling of broad shallow flow sediment processes on small watersheds are presented and the effects of space and time averaging on the predictive equations are described. Starting from the most general one-dimensional, unsteady model of sediment processes, simpler model structures are obtained and the successive simplifications made on the governing equations in order to obtain simpler and less detailed formulations are described. Specific model formulations are given for illustrative purposes and applications of these models to erosion and sediment yield prediction from broad shallow flow areas are shown using sediment data from rainfall simulator plots. In spite of some progress made in the development of process-based erosion and sediment yield models from broad shallow flow areas, further developmental modeling efforts must be based on a clear separation between hydrologic and hydraulic processes, and the soil properties which are significant for each. | Vicente L. LOPES Assistant Professor, School of Renewable Natural Resources, The University of Arizona, Tucson, Arizona, 85721 Peter F. FFOLLIOTT Professor, School of Renewable Natural Resources, The University of Arizona, 85721 | 1992 | International Journal of Sediment Research1992，7，3： | 1 |
| 10 | Defin-ing myocardial infarction:“Will the real myocardial infarction please standup?”显示文摘 | Joseph S Alpert Tucson | | 0，，： | 1 |
| 11 | Defining myocardial infarction:'Will the real myocardial infarction please stand up?'显示文摘 | Joseph S Alpert Tucson | 2003 | American Heart Jour nal2003，9，： | 1 |
| 12 | DeFining myocardial infarction: 'Will the real myocardial infarction please stand up?' 显示文摘 | Joseph S Alpert Tucson | 2003 | American Heart Journal2003，9，： | 1 |
| 13 | Definig myocardial infarction:'Will the real my ocardial infarction pleasa stand up显示文摘 | Alpert Tucson | 2003 | Amedcan Heart Joumal2003，90，： | 1 |
| 14 | An integrative review:triang protocols and the effect on ED length of stay显示文摘 | Dana JR Tucson AZ | 2012 | Clinical2012，4，： | 1 |
| 15 | Defining myocardial infarction:'Will the real myocardial infarction please stand up?'显示文摘 | Joseph S Alpert Tucson | 2003 | American Heart Journal2003，9，： | 1 |
| 16 | Defining myocardial infarction :' Will the real myocardial infarction please stand up?' 显示文摘 | Joseph S Alpert Tucson | 2003 | American Heart Journal2003，，9： | 1 |
| 17 | Defining myocardial irdarc-tion:Will the real myocardial in infarction please stand up显示文摘 | Joseph S Alpert Tucson | 2003 | American Heart Journal2003，9，： | 1 |
| 18 | The Fibre Channel Consultant: Arbitrated Loop 显示文摘 | Kembel Robert W Tucson AZ | 1998 | Northwest Learning Associates1998，6，5： | 1 |
| 19 | Maturation of immune responses at the beginning of asthma显示文摘 | Martinez FD Tucson MD | 1999 | J Allergy Clin immunol1999，103，31： | 1 |
| 20 | 提高电流源性能的JFET级联技术显示文摘很多工艺控制传感器(如热敏电阻器和应变桥)都需要精确的偏置电流。增加一只电流设置电阻器R1后,电压基准电路IC1就可以构成一个恒定和精确的电流源(图1)。但是,该电流源的误差与R1和IC1的精度有关,并影响着测量精度和分辨率。虽然我们可以采用精度高于大多数常用电压基准IC1的高精度电阻器,但电压基准的误差左右了该电流源的精度。制造商会尽力减小电压基准的温度灵敏度和输出电压误差.但对电源变动的敏感性仍可影响到它的精度,尤其是对于必须工作在供电电压范围很宽的工艺控制应用场合。 | Clayton B Grantham Tucson AZ | 2006 | 电子设计技术 EDN CHINA2006，13，8： | 0 |
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