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雪佛兰 traverse

汽车知识 2008年第7期 9-9页

作者：秋霜老车建明

通用在最近几年一直在推行节油战略,将旗下的SUV产品向Crossover过渡是其中重要的举措。在相继推出GMC Acadia,土星Outlook和别克Enclave之后,在今年初又推出了Lambda平台上的新作品雪佛兰traverse。雪佛兰traverse的外观设计许多元素来... 详细信息

通用在最近几年一直在推行节油战略,将旗下的SUV产品向Crossover过渡是其中重要的举措。在相继推出GMC Acadia,土星Outlook和别克Enclave之后,在今年初又推出了Lambda平台上的新作品雪佛兰traverse。雪佛兰traverse的外观设计许多元素来自Malibu轿车,略为生硬而没有结合SUV的特点。动力系统目前仅有一款3.6升V6汽油机,由于采用了汽油直喷技术,最大功率和最大扭矩分别达到213kW和345Nm,与之配合的是6挡自动变速器。此外,它采用集成了ABS、ETC和ESC

关键词：雪佛兰 traverse 动力系统

Friction surfacing of AISI 316 over mild steel: A characteriation study

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Defence Technology（防务技术） 2018年第4期14卷 306-312页

作者： R.George Sahaya Nixon B.S.Mohanty R.Sathish Department of Mechanical Sathyabama University Department of Mechanical Engineering St.Joseph's College of Engineering Department of Mechanical Engineering SRM Easwari

An attempt has been made with overlaying of stain-less steel on mild steel by the technique of friction surfacing. This investigation elaborates the excellence acquired by different combination of the process parameters used in friction surfacing specifically traverse speed of the cross slide, speed of rotation of the spindle and the uniaxial compressive load. Excellent overlaying has been obtained amongst the chosen materials. To which, the coating can be done with various set of process parameters. It has been observed that the bond strength of the coating was found to be at a maximum of 502 MPa by ram tensile *** upon this results the surface methodology was characterized with scanning electron *** authenticating the results, the coated specimen was subjected to salt spray test. The bonding microstructure was characterized using optical microscopy and X-ray diffraction. Corrosion resistance of surfaced coatings was found to be more inferior to that of mechtrode material and greater with the substrate.

关键词： Friction surfacing Rotational speed traverse speed Axial load Salt spray test Microstructure XRD analysis Ram tensile test

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轿车尾流移测试验研究

兵工学报 2000年第1期21卷 57-60页

作者：张群锋王望予傅立敏蔡国华吉林工业大学吉林长春130025 北京空气动力研究所

轿车的尾流结构与其空气阻力、升力与安全性有密切联系 ,为进一步研究轿车尾流结构及验证尾流场数值模拟结果的精确性提供依据 ,需通过试验得到较为全面地反映尾流结构的定量信息。为此 ,进行了红旗CA774轿车 1 10模型的七孔探针尾流移... 详细信息

轿车的尾流结构与其空气阻力、升力与安全性有密切联系 ,为进一步研究轿车尾流结构及验证尾流场数值模拟结果的精确性提供依据 ,需通过试验得到较为全面地反映尾流结构的定量信息。为此 ,进行了红旗CA774轿车 1 10模型的七孔探针尾流移测试验。

关键词：尾流结构尾流移测七孔探针 A WAKE traverse SURVEY ON PASSENGER CARS Zhang Qunfeng Wang Wangyu Fu Limin

LASER SURFACE ALLOYING OF 45 CARBON STEEL WITH Cr AND Mo

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Chinese Science Bulletin 1990年第9期35卷 790-791页

作者：马咸尧陶曾毅 Huazhong University of Science and Technology Wuhan 430074 PRC

Laser Surface alloying is a process, in which a high-power laser beam is used to scan across the surface of a material, thus forming a melting zone, and then some alloying elements are spread into the melting pool to yield an alloying layer with characteristic properties on the surface of this material. We have studied the laser surface alloying technique and the properties of the alloying layer for 45 carbon steel with the elements Cr and Mo and obtained some useful data.

关键词： SURFACE alloying melting hardness LASER alloyed traverse decreasing spread hardening

Science and exploration in the high interior of East Antarctica in the twentieth century

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Advances in Polar Science 2016年第2期27卷 65-77页

作者： Irina Gan David Drewry Ian Allison Vladimir Kotlyakov Antarctic Climate and Ecosystems Cooperative Research Centre HobartAustralia University of Hull HullUK Institute of Geography Russian Academy of SciencesMoscowRussia

The highest part of the East Antarctic Ice Sheet, more than 4000 m above sea level, has been an area that has seen a considerable scientific research effort undertaken by the Chinese National Antarctic Research Expedition, and its international collaborators, since January 2005. That includes the establishment of the most remote Of the Chinese Antarctic stations, Kunlun, at Dome A in 2009. However, the exploration and mapping of this region had been commenced many decades earlier, most notably by inland traverses of the Union of Soviet Socialist Republics during the 1957-1958 International Geophysical Year 0GY） and later; and the extensive surveys of Antarctic surface and sub-ice topography by airborne radio-echo sounding made by the US National Science Foundation-Scott Polar Research Institute-Technical University of Denmark （NSF-SPRI-TUD） in the late-1960s and the 1970s. Here we provide a history of the activities and achievements of these earlier programs. Recent topographic maps of the ice sheet surface in the Dome A region, produced using Chinese GPS data and satellite altimetry, have shown the maps compiled from the earlier data were remarkably accurate.

关键词： East Antarctica Dome A Gamburtsev Mountains traverse sub-glacial mapping seismic radio-echosounding (RES)

Application of Electrical Resistivity Imaging in Investigating Groundwater Pollution in Sapele Area, Nigeria

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Journal of Water Resource and Protection 2014年第14期6卷 1369-1379页

作者： Okezie Uchegbulam Elijah A. Ayolabi Department of Geosciences University of Lagos Lagos Nigeria

Sixty-four multi-electrode Lund imaging system coupled with ABEM SAS 4000 Terrameter was used for the electrical imaging of the study area. Wenner and Gradient arrays with 2 m minimum electrode spacing were employed which revealed resistivity changes in the vertical and horizontal directions along the survey lines. Earth imager software was employed for?the processing and the iteration of the 2-D resistivity data. The subsurface is characterized with soil material with resistivity ranging from 42 - 15,000 Ohm-m, reflective of varying degree of conductivity associated with changing lithology and fluid type. Correlation with borehole data shows that the first 10 m is composed of laterite. While sand materials occupy 10 to about 60 m beneath the surface, with anomalously high resistivity ≤15,000 Ohm-m in most parts. These high resistivity formations can be attributed to the presence of hydrocarbon within the subsurface, which is an indication that shallow aquifer in the study area has been polluted. The water level in the study area is close to the surface, between 4 - 5 m. As a result of the high resistivity formations in most parts, deep wells of about 45 m are recommended after geophysical investigations.

关键词： Electrical Resistivity Imaging Pollution traverse Lines

Two Types of Features and Their Extractions in Handwritten Chinese Character Recognition

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Journal of Harbin Institute of Technology(New Series) 1997年第2期4卷 39-42页

作者：石大明唐降龙刘家锋舒文豪

From the fact a Chinese character is usually taken as an image and related to its structural information while it is recognized, this paper discusses the extraction of statistical features from Rapid transformation of numbers of horizontal and vertical traverses and structural features from contour components. As the statistical features are insensitive to translation and slight revolution, and there is plenty of contour information in a Chinese character, a way of extracting components by sub structure detectors is proposed, and experiments on 40,000 Chinese character samples show that this approach is useful and suitable for the development of a practical Chinese character recognition system.

关键词： traverse features sub structure detector

SEMANTIC MAPPINGS ON HERBRAND BASE

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Chinese Science Bulletin 1982年第10期27卷 1042-1045页

作者： LU Rouqian Institute of Mathomatics Academia SinicaBeijing

Emden and Kowalski considered operational semantics, modeltheoretie semantics and fixpoint semantics together with their equivalence in respect to the Horn sets. But they took into account only the Horn sets without negative clauses, which are always satisfiable. Thus their results are limited. On the other hand, they did not give any construction method of the least fixpoint. This paper attempts to solve these problems with the help of a new definition of semantic mappings.

关键词： semantics equivalence operational clause instance traverse itself longs really holds

CALCULATION OF THE X-RAY SPATIAL RESOLUTION BY MONTE CARLO SIMULATION

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Chinese Science Bulletin 1984年第11期29卷 1447-1451页

作者：何延才曹立群 Shanghai Institute of Ceramic Chemistry and Technology Academia Sinica Computer Station of Material and Equipment Distribution Bureau of Shanghai

Ⅰ. INTRODUCTION The X-ray spatial resolution R_x is a very important parameter for quantitative electron probe microanalysis (EPMA). Reed, Duncumb and Castaing et al. have proposed their empirical formulae to calculate R_x. However there exist obvious discrepancies among their respective formulae, and no formula hastakenaccount of the atomic number Z, that is to say, the effect of variation in electron

关键词： formulae respective EPMA empirical unlike traverse Bethe straight excited diameters