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| 1 | TIME EVOLUTION OF LOCAL SCOUR AT OBSTACLES PROTRUDING FROM CHANNEL SIDE WALLS显示文摘This paper deals with the effects of average flow velocity, obstacle length and sediment size on time evolution of scour depth near thin, vertical obstacles, protruding at right angle from movable bed channel side-walls. These effects are studied in the framework of the 'generalised equations' of Ettema (1980), Franzetti et al. (1982) and Whitehouse (1997). The results show that i) coefficients included in the first two equations depend on flow velocity as well as on obstacle length; ii) those coefficients are independent of bed material size; iii) the coefficients involved in the equation of Whitehouse (1997) are independent of flow velocity, obstacle length and bed material size. A new method for the evaluation of Whitehouse’s time scale was obtained and a new method for the characterisation of equilibrium time was established in the framework of the equation of Franzetti et al. (1982). | J. S. dos SANTOS and A. H. CARDOSO 1 Civil Engineer M. Sc. in Hydraulics and Water Resources, Project Engineer, ExxonMobil Production Company, U.S. East, P.O. Box 61707, New Orleans, Louisiana 70161-1707, U.S.A. E-mail: ahc@civil.ist.utl.pt 2 Associate | 2001 | International Journal of Sediment Research2001，16，4： | 3 |
| 2 | 机械电子学设计方法的一种框架显示文摘机械电子学是联合机械技术、电子技术和软件技术去实现一个系统的总功能。在这三种技术联合的设计方法还没有取得进展的时候,即使在工业上确定机械电子学的设计概念,也被认为是一个非常困难的问题。通过分析机械、电子和软件的设计,本文陈述了“机械软件”和“操作软件”在机械电子学中是关键的论点,并且描述了一套基本原理作为新方法发展的基础。 | Jacob Buur M. SC. E. E 刘晓明 | 1990 | 机械与电子1990，，1： | 1 |
| 3 | Microcracking and stress-strain curves for concrete in tension显示文摘 | R. H. Evans C.B.E. D. Sc. D. ès Sc. Ph. D. M.I.C.E. F. Am. Soc. C.E. M.I. Mech. E. M.I. Struct. E. M. S. Marathe B.E. D.C.T. Ph. D | 1968 | Matériaux et Constructions1968，，1： | 1 |
| 4 | 大型零件的高效涂层工艺-粉末填充埋弧焊显示文摘描述了一种对连铸辊轮表面双层熔覆的埋弧焊新工艺。它采用了两根低合金电极(Φ2.5 mm)和一种高合金填充粉末。这种工艺效率高,得到的组织细且均匀,并且根据不同要求可以灵活改变涂层成份。 | Sc. Hans Hallen Karl-Erik Johansson | 2009 | 中国表面工程2009，22，5： | 1 |
| 5 | Hepatitis TT virus infection in high-risk groups显示文摘 | Y. Poovorawan M. D. A. Theamboonlers B. Sc. P. Jantaradsamee B. Sc. N. Kaew-in B. Sc. P. Hirsch M. Sc. P. Tangkitvanich M. D | 1998 | Infection1998，，6： | 1 |
| 6 | Hepatitis TT virus infection in high-risk groups显示文摘 | Y. Poovorawan M. D. A. Theamboonlers B. Sc. P. Jantaradsamee B. Sc. N. Kaew-in B. Sc. P. Hirsch M. Sc. P. Tangkitvanich M. D | 1998 | Infection1998，，6： | 1 |
| 7 | Microcracking and stress-strain curves for concrete in tension显示文摘 | R. H. Evans C.B.E. D. Sc. D. ès Sc. Ph. D. M.I.C.E. F. Am. Soc. C.E. M.I. Mech. E. M.I. Struct. E. M. S. Marathe B.E. D.C.T. Ph. D | 1968 | Matériaux et Constructions1968，，1： | 1 |
| 8 | Brittle fracture propagation in rock under compression显示文摘 | E. Hoek M. Sc. (Eng) Z. T. Bieniawski M. Sc. (Eng) | 1965 | International Journal of Fracture Mechanics1965，，3： | 1 |
| 9 | Brittle fracture propagation in rock under compression显示文摘 | E. Hoek M. Sc. (Eng) Z. T. Bieniawski M. Sc. (Eng) | 1984 | International Journal of Fracture1984，，4： | 1 |
| 10 | Microcracking and stress-strain curves for concrete in tension显示文摘 | R. H. Evans C.B.E. D. Sc. D. ès Sc. Ph. D. M.I.C.E. F. Am. Soc. C.E. M.I. Mech. E. M.I. Struct. E. M. S. Marathe B.E. D.C.T. Ph. D | 1968 | Matériaux et Constructions1968，，1： | 1 |
| 11 | Brittle fracture propagation in rock under compression显示文摘 | E. Hoek M. Sc. (Eng) Z. T. Bieniawski M. Sc. (Eng) | 1965 | International Journal of Fracture Mechanics1965，，3： | 1 |
| 12 | Sealing of thermal spray coatings by impregnation显示文摘 | J. Knuuttila M. Sc. (Eng.) P. Sorsa T. M?ntyl? J. Knuuttila P. Sorsa | 1999 | Journal of Thermal Spray Technology1999，，2： | 1 |
| 13 | Zinc and Copper Status in Urban Thai PregnantWomen and Their Pregnancy Outcome显示文摘Zinc and copper intakes and serum concentrations were determined at the 32th and 36th week of pregnancy in 96 healthy Thai women attending a prenatal clinic. Dietary data from 3-day food records revealed that the mean dietary zinc and copper intakes in Thai pregnant women were 6. 9 and 1. 7mg/d (equivalent to 34 and 69% of Thai RDA), respectively. Fifty-five percent of zinc intake was from animal origin, whereas 59% of copper intake was from plant origin.The infants of the 64 women who were in the study until delivery, were all normal.Most (>96%) of the maternal serum zinc and copper concentrations were within normal ranges. Only one woman at 32th week had low serum zinc level (<6. 4μmol/L). There were no significant correlations between the maternal serum zinc or copper levels and pregnancy outcome (birth weight and birth length). In this study, although the zinc and copper intake in most Thai pregnant women (99 and 58%, respectively) were less than two-thirds of the Thai RDAs, they were not at risk of suffering from zinc and copper deficiencies as determined by serum zine and copper concentrations, abnormal parturition and abnormal pregnancy outcome. | SRIWATANA SONGCHITSOMBOON, D. Sc. SURAT KOMINDR,MD. WINIT PHUAPRADIT, MD.,MPH., AND JINTANA SIRIVARASAI, M. Sc.(Research Center, Department of Medicine, and Department of Obstetric and Gynecology, Faculty of Medicine, Ramathibodi Hospital, Mahidol Univer | 1998 | Biomedical and Environmental Sciences1998，11，2： | 1 |
| 14 | Live-line work on the 500 KV transmission line with a silk jack ladder显示文摘It is a common practice in China to use an insulated silk jack lad-der in the live-line work to enter the 500 kV EHV electric field.Wuhan High Voltage Research Institute has successfully carried outsuch operating performance at the meeting of ESMO-90 in Canada.(Fig.1) The operating procedure is now recommended asfollows. | Chen Jiansheng Wuhan High Voltage Research Institute,MOEHuang Jilong Dept.of Sc.& T.,CEC | 1991 | Electricity1991，，1： | 0 |
| 15 | Optimum Investment Policies for Diagnostic Equipment under a Limited Budget in Multistage Production Systems显示文摘1IntroductionAcommonrequirementofcompaniesfromtheirmaintenanceprogramsistohavethemaximumavailabilityoftheirproductionprocesses.ManufacturersnowhavediagnosticequipmentthatenablesthemtOmonitortheirpreductionprocessesatalltimes.Maintenanceplanning,there... | Banhan Lila W.J. Kennedy(Industrial Engineering Department, Clemson University, SC., USA.) | 1999 | International Journal of Plant Engineering and Management1999，4，Z1： | 0 |
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