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Corrosion of an AZ31B Magnesium Alloy by Sulfate-Reducing Prokaryotes in a Mudflat Environment 期刊论文  OAI收割
MICROORGANISMS, 2022, 卷号: 10, 期号: 5, 页码: 12
作者:  
Lan, Xiao;  Zhang, Jie;  Wang, Zaifeng;  Zhang, Ruiyong;  Sand, Wolfgang
  |  收藏  |  浏览/下载:30/0  |  提交时间:2022/07/18
Cocculina delphinicula sp nov., a new cocculinid species from whale bone in the East China Sea (Gastropoda: Cocculiniformia) 期刊论文  OAI收割
ZOOTAXA, 2018, 卷号: 4455, 期号: 1, 页码: 189-195
作者:  
Zhang, Shuqian;  Zhang, Suping
  |  收藏  |  浏览/下载:22/0  |  提交时间:2019/08/23
烟台夹河口外柱状沉积物还原性无机硫、活性铁的变化特征及其相互关系 期刊论文  OAI收割
海洋科学, 2018, 卷号: 42, 期号: 8, 页码: 90-97
作者:  
姜明;  赵国强;  李兆冉;  盛彦清
  |  收藏  |  浏览/下载:30/0  |  提交时间:2020/07/08
还原性无机硫  活性铁  深层柱状沉积物  硫化度  矿化度  Reduced inorganic sulfur  Reactive iron  Deep core sediments  Degree of pyritization  Degree of sulfidity  The distribution characteristics and coupling mechanism of reduced inorganic sulfur (RIS)and reactive iron in marine core sediments are closely related to the evolution of environment quality.In this study,an improved cold diffusion method and hydrochloric acid extraction method were applied to the acid-volatile sulfur (AVS),pyrite sulfur (CRS),elemental sulfur (ES),and reactive iron [Fe (Ⅱ)and Fe (III)] analyses.The distribution characteristics and coupling mechanism of S and Fe were investigated based on a core sediment 4 meters deep collected in the northern sea area of the mouth of Jiahe River,Yantai.The results showed that the RIS in sediments was dominated by CRS,followed by AVS and ES.The content of AVS presented a narrow range with depth,whereas the CRS and ES were higher at the top and bottom layers than the middle layer  reactive iron was dominated by Fe (II),which increased with depth,while Fe (Ⅲ)gradually decreased with depth.Most of the Fe (III)was reduced to the disssolved Fe(II),which was combined with the soluble H_2S of the sulfate-reducing bacteria to produce CRS and ES in the deep layer,resulting in their accumulation at the bottom of core sediments.Furthermore,this study showed that reactive iron was not a limiting factor for the accumulation of RIS with lower degree of pyritization and degree of sulfidity.  
Microbiologically Induced Corrosion of X80 Pipeline Steel in a Near-Neutral pH Soil Solution 期刊论文  OAI收割
Acta Metallurgica Sinica-English Letters, 2015, 卷号: 28, 期号: 1, 页码: 93-102
T. Q.; Yan Wu, M. C.; Zeng, D. C.; Xu, J.; Yu, C. K.; Sun, C.; Ke, W.
收藏  |  浏览/下载:28/0  |  提交时间:2015/05/08
Variations of Microenvironments with and without SRB for Steel Q 235 under a Simulated Disbonded Coating 期刊论文  OAI收割
Industrial & Engineering Chemistry Research, 2013, 卷号: 52, 期号: 36, 页码: 12838-12845
J. Xu; C. Sun; M. C. Yan; F. H. Wang
收藏  |  浏览/下载:14/0  |  提交时间:2014/02/19
Research on moving target tracking scene simulation technology under battlefield complicated environment based on Vega (EI CONFERENCE) 会议论文  OAI收割
4th International Congress on Image and Signal Processing, CISP 2011, October 15, 2011 - October 17, 2011, Shanghai, China
Wang S.; Wei Y.-J.
收藏  |  浏览/下载:17/0  |  提交时间:2013/03/25
In order to better simulate the real environment of the battlefield  which has moving-target and the complicated background and to simulate the tracking process of the target with 3d's simulation. This paper introduce a development platform of the Vega 3d simulation software  and how to use the Vega to simulate the complex battlefield background  which has the sky  the explosion effects in the ground  the fly parameters of fighter planes. It reappear a complete process  which contains capturing target and tracking target. Experiment indicate that the Vega development platform is convenient and fast  and can achieved the design parameters for the task's demands. It also has many advantages  that contains repeating the performance of real experiment and reducing the expenses of the military experiment. 2011 IEEE.  
Discovery of native aluminum and its possible origin from prospective gas hydrate areas in the South China Sea 期刊论文  OAI收割
SCIENCE CHINA-EARTH SCIENCES, 2010, 卷号: 53, 期号: 3, 页码: 335-344
作者:  
Chen, Z;  Huang, CY;  Wu, BH;  Zhao, MX;  Yan, W
  |  收藏  |  浏览/下载:28/0  |  提交时间:2011/07/02
Research on the support structure of the primary mirror of large-aperture telescope (EI CONFERENCE) 会议论文  OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Large Mirrors and Telescopes, July 8, 2007 - July 12, 2007, Chengdu, China
Yang W.; Jingxu Z.
收藏  |  浏览/下载:36/0  |  提交时间:2013/03/25
Large-aperture telescope can be used in surveying battlefield  researching landform  searching object  real-time monitoring  imaging  detecting and identifying spatial targets and so on. A large-aperture telescope for achieving high resolution power is designed to monitor spatial target and image in real time. Real-time monitoring plays an important role in military conflicts. The orbit parameter of object  quantity  geometrical shape parameter and so on can be obtained by detect spatial target. With the development of optical technology  people require larger aperture in optics-electronic (OE) system. By increasing optical aperture  the ability of collecting light and resolution power in the system can be enhanced. But the support structure of the primary mirror of large-aperture telescope will be a very difficult problem. With the increase of primary mirror aperture  the weight of the primary mirror will become larger than before. The root mean square (rms) of the primary mirror is affected by many factors  such as deadweight  deformation of heat  environment and so on. Due to the primary mirror of telescope is an important component of telescope system. By reducing the weight of primary mirror  precision of the system is ensured. During the designing phase  one can consider the supporting project of the primary mirror synthetically and analyze it roundly according to technical requirement of optical system and the effect factors. The final structural design can be reasonable. In an astronomical telescope  the surface of reflector is an important part for collecting dark radiation of celestial bodies. Its surface shape will have an effect on collecting efficiency of telescope radiant energy directly. So the rms must be very high. Optical system of large aperture  small wavelength and small focus can receive maximal light intensity. For ground-based optical astronomical telescope  the design proposed in the paper can satisfy the requirement of the possible minimum atmosphere seeing at astronomical observatory site and exert the use efficiency of the telescope adequately. So the accuracy of the traditional surface of reflector can assure that 90% of all the light energy can be focused on within the angle diameter range of the minimum atmosphere seeing  then 100% of light energy should be focused on the angle diameter range of minimum atmosphere seeing. Because the rms of mirror is very high  precise surface machining and accurate the support of mirror are very important tasks during designing and manufacturing the telescope. In the paper  various support techniques of a large-aperture telescope primary mirror are discussed and a 3.5 meter telescope system at the Starfire Optical Range (SOR) overviewed simply  which was operated by the Directed Energy Directorate of the Air Force Research Laboratory  Kirtland AFB  NM  USA from the ground-based O-E system for the observations of spatial target. We also analyze Theoretical elastic deformation of the Steward Observatory 2.3 meter mirror is analyzed.