Compiler compatible 5.66 Mb/mm2 8T 1R1W register file in 14 nm FinFET technology

1-read/1-write (1R1W) register file (RF) is a popular memory configuration in modern feature rich SoCs requiring significant amount of embedded memory. A memory compiler is constructed using the 8T RF bitcell spanning a range of instances from 32 b to 72 Kb. An 8T low-leakage bitcell of 0.106 μm² is used in a 14 nm FinFET technology with a 70 nm contacted gate pitch for high-density (HD) two-port (TP) RF memory compiler which achieves 5.66 Mb/mm² array density for a 72 Kb array which is the highest reported density in 14 nm FinFET technology. The density improvement is achieved by using techniques such as leaf-cell optimization (eliminating transistors), better architectural planning, top level connectivity through leaf-cell abutment and minimizing the number of unique leaf-cells. These techniques are fully compatible with memory compiler usage over the required span. Leakage power is minimized by using power-switches without degrading the density mentioned above. Self-induced supply voltage collapse technique is applied for write and a four stack static keeper is used for read Vmin improvement. Fabricated test chips using 14 nm process have demonstrated 2.33 GHz performance at 1.1 V/25 °C operation. Overall V_min of 550 mV is achieved with this design at 25 °C. The inbuilt power-switch improves leakage power by 12x in simulation. Approximately 8% die area of a leading 14 nm SoC in commercialization is occupied by these compiled RF instances.     

Optimized microwave excitation probe for general application in NDT of wall thinning in metal pipes of arbitrary diameter

Generalized approaches to developing a microwave NDT for flaws inside an arbitrary diameter pipe through optimizing a microwave-exciting probe were investigated. A microwave probe obtained from a parameter-optimizing scheme based on transmission characteristics is proposed. Three-dimensional finite element simulation of five microwave probes indicates that a larger optimization parameter enables reduced microwave reflection, as well as improved single-mode propagation inside the pipe as compared with conventional probes. Experimental verification, using straight brass pipes of various diameters confirmed that the optimized microwave probe exhibits a larger signal-to-noise ratio for internal flaws when compared with conventional probes, thereby validating the new optimization parameter.     

高硫原料条件下八钢烧结脱硫运行实践

介绍了八钢烧结在原料二氧化硫含量不断上升、烧结脱硫系统承载超负荷运行情况下,通过优化配矿结构、完善脱硫系统工艺和烧结脱硫操作等措施,提高了脱硫能力。经过一年多的运行实践,脱硫设施和烧结运转率达到98%以上,脱硫效率达到98%,粉尘排放浓度控制在10mg/m^3。     

某省粮食储备库的仓储作业流程及优化方案

在现代粮食物流快速发展的大背景下,依据仓储管理的基本内涵,以某省级粮食储备库为研究对象,从入库作业、在库作业、出库作业等方面分析其仓储作业流程现状,指出其仓储作业流程存在的问题并分析原因。提出完善仓储作业流程、更新改造仓库设施设备、强化员工岗位技能培训等适用于该省粮食储备库仓储作业流程的优化方案,以期为粮食储备库仓储作业流程改进和优化提供理论支撑。     

大型坑口电厂优化选址的分析研究

合理开发煤炭资源、优化能源生产结构、确保能源安全供应,对优化大型坑口电厂的选址具有十分重要的意义。现以山西某大型坑口电厂为例,介绍其优化选址方案,以期对大型坑口电厂在优化选址方面能起到一定的参考作用。     

钢丝绳拉丝工艺计算机辅助设计系统研发

制绳钢丝的质量对于钢丝绳的质量而言至关重要,拉丝工艺过程设计合理与否是影响制绳钢丝质量的重要因素。对拉丝工艺过程进行了分析,深入研究了拉丝工艺计算机辅助设计自动决策模型,对拉丝工艺优化设计也进行了研究。研究并开发了钢丝绳拉丝工艺计算机辅助设计程序,成功运用了863/CIMS成果应用工程"咸阳石油钢管钢绳厂CIMS应用工程"的子系统"钢丝绳CAPP集成系统"中。     

DSJ800可伸缩带式输送机技术改造

根据淄矿集团许厂煤矿和岱庄煤矿的生产准备要求,对DSJ800可伸缩带式输送机的机头部、驱动部、游动小车和机尾等进行技术改造。     

某金矿矿石浮选优化试验研究

对某金矿的浮选工艺系统地进行了参数优化试验研究 ,得到了浮选最佳药剂条件 ,最终金的回收率为89.5 1%,浮选精矿金品位为 76.67g/t。     

基于Web的多煤体CAI课件开发过程中若干问题的研究和实践

基于Web的多煤体CAI课件是多媒体CAI课件与Web技术的结合,它将成为网络教学多媒体CAI课件的主要形式。该文结合一个实例,介绍了在基于Web的多媒体CAI课件开发过程中,对课件页面进行页面优化的原则方法,并详细介绍了课件中导航、查询、测试等关键功能的JavaScript程序实现技术和方法     

冶金过程人工神经网络建模及其参数优化策略

鉴于人工神经（ANN）网络在处理复杂系统方面卓越的能力，采用人工神经网络来处理冶金过程的系统建模问题，分析并建立了人工神经网络建模的框架及应用方法。在用网络模型仿真实际系统的基础上，详细论述了基于网络模型的3种系统参数优化策略。将已建立的模型应用于冶金实际生产，结果表明，预测结果与实际生产数值相当吻合。