安徽某高硫金矿金硫综合回收工艺研究

安徽某高硫金矿中银金矿与黄铁矿密切共生,被硫化物所包裹的金占64.51%。针对该矿石的特点,试验分别进行了抑硫选金再选硫及金硫混合浮选—浮选精矿氰化提金试验研究,研究结果表明,金硫混合浮选—浮选精矿氰化提金并回收硫的工艺为最佳方案,获得金总回收率84.90%、银总回收率36.29%、硫总回收率97.26%的金(银)精矿和硫精矿。     

动态信息

现行标准化管理体制将作改革信息产业部主管标准制定的科技司拟组建一个新型标准化组织———ＴＣ１００，全称是“全国音频、视频、多媒体设备及系统标准化委员会。据悉，该组织将在数字视听类产品方面以试点方式，改变现行的标准化管理体制，同时相应地改变现有的标准化...     

广东省揭东县合升石材机械有限公司让利酬宾

本公司在投产一系列机械设备四周年之际，开展让利酬宾活动，具体内容如下： 　　一、价格特优     

BUILDING OF THE PETROLEUM DRILLING FLUID ENGINEERING DESIGN EXPERT SYSTEM

Ｐｅｔｒｏｌｅｕｍｉｓｏｎｅｏｆｔｈｅｍｏｓｔｋｅｙｆａｃｔｏｒｓｉｎｉｎｄｕｓｔｒｙｄｅｖｅｌｏｐｍｅｎｔ，ｅｓｐｅｃｉａｌｙｆｏｒＣｈｉｎａ．Ｎｏｗａｄａｙｓ，ｔｈｅＰｅｔｒｏｌｅｕｍｅｘｐｌｏｒａｔｉｏｎｓｉｔｅｈａｓｉｎｃｒｅａｓｉｎｇｌｙ...     

A Computer Vision Method for 3D Reconstruction of Curves-Marked Free-Form Surfaces

Visual method is now broadly used in reverse engineering for 3D reconstruction. The traditional computer vision methods are feature-based, i.e., they require that the objects must reveal features owing to geometry or textures. For textureless free-form surfaces, dense feature points are added artificially. In this paper, a new method is put forward combining computer vision with CAGD. The surface is subdivided into N-side Gregory patches using marked curves, and a stereo algorithm is used to reconstruct the curves. Then, the cross boundary tangent vector is computed through reflectance analysis. At last, the whole surface can be reconstructed by jointing these patches with 1Gcontinuity.     

Explosion－insulated Full Optical Fiber Diferential－presure Measuring Instrument

Ｅｘｐｌｏｓｉｏｎ－ｉｎｓｕｌａｔｅｄＦｕｌＯｐｔｉｃａｌＦｉｂｅｒＤｉｆｅｒｅｎｔｉａｌ－ｐｒｅｓｕｒｅＭｅａｓｕｒｉｎｇＩｎｓｔｒｕｍｅｎｔ①ＺＨＥＮＧＤｅｚｈｏｎｇ，ＷＵＣｈａｎｇｑｉ，ＷＡＮＧＺｈｅｎｃｈｅｎ，ＬＩＺｕｏｆａｎｇ（Ｙａｎｓｈａ...     

Study on Carburizing and Temperature Rising of the Semi-Steel Melt with Plasma Heating

ＳｔｕｄｙｏｎＣａｒｂｕｒｉｚｉｎｇａｎｄＴｅｍｐｅｒａｔｕｒｅＲｉｓｉｎｇｏｆｔｈｅＳｅｍｉ－ＳｔｅｅｌＭｅｌｔｗｉｔｈＰｌａｓｍａＨｅａｔｉｎｇＹｕａｎＺｈａｎｇｆｕ①，ＺｅｎｇＪｉａｑｉｎｇ①，ＨｕａｎｇＤａｏｃｈａｎｇ①，ＷａｎＴｉａｎｊｉ①...