不同类型在役抽油机机架受力分析

通过现场测试和检查,对油田特定区域内经过优化后的各种不同类型抽油机在额定载荷下的支架以及连杆受力情况进行了分析和评价。为在油田范围内进行机采设备的选型和推广提供一些参考。     

COLOR VISION SYSTEM FOR RIPENESS INSPECTION OF OIL PALM ELAEIS GUINEENSIS

In checking harvesting discipline and quality control for oil palm fruits, color has presumably been an important guide to whether the oil content has reached a maximum where the fruit bunch is ready for cutting. However, establishing a single and harmonious standard base on color is a very contentious issue in the oil palm industry because of the subjective nature of the human vision of color. This was further complicated due to the lack of information on fruit color upon which to base a definite ripeness criterion. We demonstrated in this paper that this problem can be solved using machine vision technology. Methods used were to treat color in HSI (Hue, Saturation and Intensity) color space and applied multivariate discriminant analysis. These have proven to be highly effective for color evaluation and image processing. The vision system was trained to classify oil palms into four quality grades according to PORIM (Palm Oil Research Institute of Malaysia) inspection standards. These are the unripe, the underripe, the optimally ripe and the overripe classes. Depending upon the quality feature evaluated, misclassification by the vision system varied from 5 to 12% but averaged at about 8%. Machine vision disagreement ranged from 2 to 19%.     

CO2气体保护焊在高炉炉壳焊接中的应用

通过对CO2气体保护焊在高炉炉壳组装与焊接工艺的使用，有效地控制了焊接变形及防止焊缝裂纹，阐明提高焊接质量要从多元角度出发，有机整体地考虑问题，在结论中进一步从成本，焊接质量及培训等方面分析证明推广CO2气体保护焊的必要性。     

一种快速中值滤波算法在集装箱检查系统中的应用

讨论了一种新的中值滤波算法，有效地降低了传统中值滤波算法的时间复杂度，提高了计算效率和运算速度。该算法在大型集装箱检查图像处理中的应用，取得了良好的效果，提高了图像处理的速度，增强了图像处理的实时性。     

非晶Sm5Fe74.3Nb1.5Si11.7B4.5C2.5Cu0.5合金经预退火后的晶化动力学的DTA研究

研究了非晶Sm5Fe74.3Nb1.5Si11.7B4.5C2.5Cu0.5合金经400℃，保温10min预退火后的晶化动力学。结果表明；该合金的晶化相为α-Fe固溶体和Sm2Fe17Cx金属间化合物，两相的晶化表观激活能分别为557KJ/mol和514KJ/mol，当晶化体积分数为60%时，α-Fe相的晶化激活能达极大值；Sm2Fe17Cx相晶化激活能则随其晶化体积分数的增加而逐渐减小。     

Effect of partitioning on microstructure and properties of a medium carbon Ti Mo bearing high strength Q&P steel

In order to investigate the effect of partitioning procedures on microstructure and properties of a medium carbon Ti Mo bearing steel, the salt bath experiment, field emission SEM, TEM and tensile tests as well as wear tests were utilized to clarify the microstructural evolution and property changes treated by different partitioning parameters. The results show that the microstructures consist of tempered lath martensite, cementite and (Ti, Mo)C particles. With prolonging partitioning time or increasing partitioning temperature, the amount of laths martensite decreases and thicker martensite plates with blunt boundaries appear. In addition, with increasing partitioning temperature from 310℃ to 400℃, the tensile strength, hardness and low temperature toughness are simultaneously decreased, and the reduction reaches up to about 300MPa, 100HV and 20J, respectively. Finally, the wear performance of the samples partitioned below Ms is obviously better than that of samples partitioned above Ms. The morphology of worn surface of samples partitioned below Ms is characterized by plastic fatigue morphology, while the worn surfaces of samples partitioned above Ms are mainly dominated by grooves.     

一种新的PCC-OFDM定时时偏盲估计

多项式相消编码PCC是一种编码技术，在PCC—OFDM调制中，它把将发送的信息调制到一组加权的子载波而不是单个子载波中去。PCC能够显著地降低OFDM对载波频偏的敏感性。本文对PCC—OFDM系统提出了一种新的定时盲估计，估计器是在接收机中的FFT之前进行的。基于PCC—OFDM的符号波形特征，构建定时时偏估计度量函数。最大化度量来估计定时时偏。本估计器不需要训练序列、导频信号或周期前缀。仿真表明，估计器在一个OFDM符号内收敛，且误差较小。     

自由锻锤上冷冲厚板新工艺

介绍了自由锻锤上冷冲厚板工艺的特点和模具主要结构。以及如何解决凸凹模间隙、选用小间隙冲孔时刃口磨损加剧的问题。研制出了降低磨损。提高模具寿命的润滑剂配方。设计了适合自由锻锤上厚板冲孔的模具，对在自由锻锤上厚板冲孔进行了有益的尝试。扩大了自由锻设备的加工范围。解决了不具备大型压力机情形下的生产难题。     

河南油田潜油电泵井远程无线监控系统研制

针对河南油田研制了一种潜油电泵井远程无线监控系统。详细介绍了该系统的软硬件组成及工作原理。系统研制的主要内容包括：数据及指令传输监控软件的开发。利用SQL Server实现相关数据的管理和实时数据的网络广播；该系统在河南油田建成后．缩短了开井周期。减轻了人工劳动强度，提高了采油效率。实现了电泵井的现代化管理。