炼焦工艺对干煤和湿煤成焦质量的影响

为了更好地优化炼焦工艺,有效地改善配合煤炼焦的成焦质量,系统性地分析了炼焦工艺及干煤和湿煤炼焦对焦炭强度与反应性的影响.采用5 kg试验焦炉对多种工况下的干煤(水分低于3％)和湿煤(水分高于6％)分别进行炼焦试验.通过研究装炉煤的水分、干基堆密度以及装炉温度对干煤和湿煤成焦强度及焦炭反应性(CRI)的影响,并结合干煤和...     

干型山葡萄酒酿造试验

用广西都安野生毛葡萄与西北农大提供的优质野葡萄品系（西农2号）进行嫁接，用该嫁接品种进行干型山葡萄酒酿造试验，产品质量达到中档水平，但有微咸味，酒中总酸实际中降至7．8g/L，与理论降酸量7．0g/L尚有差距，有待探索。     

Evaluation of near-infrared reflectance spectroscopy for predicting stover quality trait in semi-exotic populations of maize

Near-infrared reflectance spectroscopy (NIRS) analysis was investigated as a means of predicting quality parameters in semi-exotic maize stover. These parameters included crude protein (CP), neutral detergent fibre, acid detergent fibre and in vitro dry matter digestibility (IVDMD). Samples of semi-exotic maize stover were collected during three growing seasons (1989, 1990, 1991) from three locations in Catalonia, Spain. Calibration equations were obtained by multiple linear regression of conventional laboratory values on NIRS data from 84 samples and verified with 20 additional samples. Separate NIRS calibration were developed also within year (1989 and 1990, respectively). A Bran + Luebbe InfraAnalyzer model 450 was used for the study. In the multi-year calibration the coefficients of squared multiple correlation (R²) ranged from 0–81 for IVDMD to 0–92 for CP and the standard errors of calibration (SEC) ranged from 0–35 for CP to 1–46 for IVDMD. The study showed that NIRS analysis can be used to evaluate the quality of semi-exotic maize in breeding programmes.     

多室环流反应器中模拟FCC干气制乙醛

研究了在多室环流反应器(MALR)中用模拟催化裂化干气和空气制乙醛的过程,考察了MALR中气含率和液体循环速率与上升室表观气速之间关系的同时,还考察了反应温度、反应压力、原料气中乙烯含量及催化剂溶液中Pd2+含量对乙烯单程转化率和乙醛选择性的影响。实验结果表明,MALR中气体流速在0.461~0.545cm/s内气含率较大,液体循环速率仅在2.5~3.2cm/s较窄的范围内变化;合成乙醛的最佳条件为:反应温度100~120℃、反应压力0.5~0.6M Pa、催化剂溶液中Pd2+质量浓度0.6~0.9g/L。     

高速公路路基的质量检测

指出压实度是路基填筑质量和强度的重要指标，针对南通地区填筑土方性质的复杂性、标准干容重选择的差异性、密实度控制质量可能失真的现状，探讨了用弯沉和密实度两指标进行“双控”，以控制路基的质量。     

金刚石干切片基体的激光切割

1 前言 金刚石干切片是一种广泛应用于石材、石雕、建筑、装修等行业的切削工具,用来切割、磨削大理石、花岗岩等石料。基于金刚石干切片基体(以下简称基体)的特殊形状,在使用时,能把切削下来的碎石屑等残渣由其上的槽口带走,而不需要象湿切片那样靠水冲走,大大方便了使     

内燃机车司机室吸附式空调器性能分析

一种以内燃机排气的余热驱动的机车司机室空调系统已投入试运行。该系统采用分子筛－水作为工质对，单吸附器结构，并通过蓄冷器，向外连续、稳定地供冷。本文阐述了该空调系统的工作原理、热力计算方法，并对部分试运行的结果进行了分析。     

黑龙江省移动基站动力及环境集中监控系统

介绍了黑龙江省移动基站集中监控系统网络结构、系统功能、监控对象及供电方式，并探讨了黑龙江省移动基站动力及环境集中监控系统的传输方案。     

优化技术条件 降低铝电解生产能耗

本文结合铝电解生产实际，通过科学合理的控制电解生产中的各项技术条件，来达到提高电流效率，降低直流电耗的目的。     

Processing and characterization of a-Si:H photoresists for a vacuum-compatible photolithography process

The vision of achieving a completely in-vacuum process for fabricating HgCdTe detector arrays is contingent on the availability of a vacuumcompatible photolithography technology. One such technology for vacuum photolithography involves the use of amorphous-hydrogenated Si (a-Si:H) as a photoresist. In this work, we deposit a-Si:H resists via plasma-enhanced chemical-vapor deposition (PECVD) using an Ar-diluted silane precursor. The resists are then patterned via excimer laser exposure and development etched in a hydrogen plasma where etch selectivities between unexposed and exposed regions exceed 600:1. To determine the best conditions for the technique, we investigate the effects of different exposure environments and carry out an analysis of the a-Si:H surfaces before and after development etching. Analysis via transmission electron microscopy (TEM) reveals that the excimer-exposed surfaces are polycrystalline in nature, indicating that the mechanism for pattern generation in this study is based on melting and crystallization. To demonstrate pattern transfer, underlying CdTe films were etched (after development of the resist) in an electron cyclotron resonance (ECR) plasma, where etch selectivities of approximately 8:1 have been achieved. The significance of this work is the demonstration of laser-induced poly-Si as an etching mask for vacuum-compatible photolithography.