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采用On-board RAM技术的超高速数据采集系统 周熠1 (1.中南民族大学计算机学院,湖北,武汉,430074) 摘要:分析了超高速闪烁A/D转换器AD9048的主要参数和外部引脚性能,并实例介绍了以此转换器为核心的采用在板存储器技术的超高速数据采集系统的硬件构成,工作原理和软件编程方法. 关键词:数据采集; 转换器; Flash ADC; 在板存储器; [全文内容正在添加中] ......
:TF811 文献标志码:A Numerical simulation of smelting process in copper flash smelters at high loading rate CHEN Zhuo1, WANG Yun-xiao1, SONG Xiu-ming2, ZHAO Rong-sheng2, YIN Shu-gui1... and the simulation was carried out with FLUENT 6.3 to investigate the distributions of multi-fields in the reaction shaft of a flash furnace at high loading rate. The results show that the process air expands......
闪速吹炼技术评述周俊1(1.湖南省长沙市中南大学冶金科学与工程学院)摘 要:对冰铜的闪速吹炼技术进行综合评述,概述闪速吹炼技术的理论基础,介绍该技术工业应用的进展情况,对能耗,除杂能力,炉寿命,与PS转炉的比较等关键问题进行分析,并展望该技术的应用前景.关键词:铜冶炼; 闪速吹炼; 连续吹炼; PS转炉......
N型Bi2Te2.5Se0.5热电薄膜的电阻率与膜厚和温度的关系 朱文1,肖承京1,杨君友1,段兴凯1 (1.华中科技大学材料科学与工程学院材料成形与模具技术国家重点实验室,湖北,武汉,430074) 摘要:在玻璃衬底上通过瞬间蒸发法沉积了厚度为50-400nm的N型Bi2.5Se0.5热电薄膜,沉积温度为473K.采用XRD,EDXA和FESEM技术分别对薄膜的相结构,组成和表面形貌进行了分析研究,在300-350K的温度范围内,研究了薄膜的电阻率与膜厚和温度的相互关系. 关键词:电阻率; Bi2Te2.5Se0.5薄膜; 瞬间蒸发法; electrical resistivity; Bi2Te2.5Se0.5 thin film; flash evaporation; [全文内容正在添加中] ......
基于USB端口的大容量存储器的设计 张伟芹1,孙玉泉2,张建3,王传琦3,孟如3 (1.唐山市排水有限公司西郊污水处理二厂中控室;2.唐山森博自动化仪表有限公司,河北,唐山,063000;3.河北理工大学信息学院,河北,唐山,063009) 摘要:针对基于USB端口的大容量存储器设计的难点,即大容量数据存储和USB通信的要求,文章提出了一种采用C8051F021单片机与USB接口连接的大容量存储器的设计方案,详细介绍了该存储器的软硬件设计,阐述了USB数据通信的固件设计方法,并给出了主循环程序流程图.基于USB端口的大容量存储器的设计方案为USB接口的开放应用提供了一种新的解决途径. 关键词:USB; FLASH存储器; 大容量; 单片机; C8051F021; [全文内容正在添加中] ......
flash furnace WAN Zi1, LIU Chang-qing1, TAN Jun1, LI Jie1, CHEN Qi-yuan1, WANG Hui2, LIAO Zhou2, ZHANG Ping-min1 (1. Key Laboratory of Resources Chemistry of Nonferrous Metals, Ministry of Education... equilibrium principle of lead sulfide minerals smelting process in the functional area of flash furnace, Moore balance method was used to investigate the effect of smelting temperature, initial oxygen......
%左右,炉内氧气基本消耗完全. 关键词:闪速熔炼;数值仿真;正交试验;参数优化 中图分类号:TF811 文献标志码:A Optimization of operational parameters for flash... flash smelting furnace, distributions of physical fields, such as the temperature field and concentration field in the reaction shaft change significantly, and the matching scheme of operational......
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parameters on smelting process in flash furnace CHEN Zhuo1, MAO Yong-ning1, ZHAO Rong-sheng2, LIU An-ming2 (1. School of Energy Science and Engineering, Central South University, Changsha 410083, China;2. Jinlong Copper Co., Ltd., Tongling 244021, China) Abstract: With the increase of the throughput of flash furnaces, the relationship between the loading rate and the reaction air (especially the air......