一种水电站最优发电实时控制算法及其应用

作者研究了一种新的水电站最优发电实时控制迭代算法.其基本思想简单清晰,易于实 现.这种算法对水电站发电机组的负荷经济分配和机组的最优组合相当有效.以该算法为基 础的控制系统已实际应用于黄坛口水电站的微机实时监控系统中.现场运行表明,本算法具 有实时性、平稳性和最优性.     

浅谈WCDMA无线资源管理

对于WCDMA移动通信系统，系统稳定性和容量最大化都是关键的性能指标．其基石就是无线资源管理（Radio Resource Management．RRM）。无线资源的概念是很广泛的．它包括频率资源，时间资源．码资源、功率资源、空间资源、存储资源。     

香港保安产品业“商”聚一“会”掠影

[本刊讯] 7月27日，保安产品业“商”聚一“会”在香港会议展览中心召开。会议由香港贸易发展局客户服务部主管黎清雄先生主持，有36名代表列席了这次圆桌论坛会议，资料与产品展示也同时举行，亚洲防伪协会等11家企业和协会参加了这次展示会。     

油气层中常见微粒的运移程度及其与ζ电位关系的研究

微粒运移是造成油气层损害最严重和最普遍的因素之一。要防止油气层中的微粒运移，就必须先弄清楚油气层中常见微粒的运移情况和影响微粒运移的主要因素。因此，通过对国内外大量微粒分析资料的统计分析，选定了油气层中常见的地层微粒作为研究对象，用新建立的、较完善的实验方法研究了这些微粒的运移程度，对这些微粒的ζ电位进行测定，发现其运移程度与其ζ电位的大小有关。一般地说，微粒ζ电位值越大，其运移程度也越大。     

地面目标图像识别技术研究

本文以数学图像处理为重点，较详细地论述了地面目标图像识别技术中从图像分割、边界跟踪、噪声去除、边界点直线拟合到目标识别的主要过程，并以机场跑道为例，深入探讨了目标特征选取的方法。     

微悬浮氯醋共聚树脂的合成及影响因素的研究

用微悬浮聚合法合成了不同醋酸乙烯酯含量的氯醋共聚物，研究了各种影响因素对聚合反应速及粒径大小和分布的影响，用扫描电镜观察了共聚物的颗粒形态。结果表明，醋酸乙烯酯共聚单体的引入对共聚合反应速率及粒径大小和分布影响不大，由此推出微悬浮氯醋共聚反应了与氯乙烯均聚反应具有类似的成核过程。     

Minkowski结构运算与顺序滤波

本文从Minkowski结构运算出发,导出了一系列具有实际意义的几何结构函数和特征参 量,并拓广二值图象的结构运算到多值图象(即顺序滤波)和多维图象,最后略述结构运算与顺 序滤波的若干应用.     

CT features of calcifications in abdominal malignant fibrous histiocytoma

Driven by the need for a readily available, non-immunological tissue that possesses many of the characteristics of normal human skin, tissue-engineered skin has been developed. For over a decade, laboratory grown or processed skin has been under investigation and, in some cases, available as an alternative to autologous grafts. Apligraf, derived from neonatal foreskin and bovine type I collagen, is the first bi-layered living skin equivalent approved in the US and other countries for use in venous ulcers. Apligraf is effective both in the treatment of refractory venous ulcers and for acute wounds such as surgical excision sites and split thickness donor sites. Apligraf is safe and is not clinically rejected. Its ultimate fate is not known, so it may well work to aid healing in a variety of ways including graft 'take' and as a stimulus for healing.     

The adsorption of lithium onto alumina from solutions of mixed chlorides: Effects of temperature and electrolyte control

The effects of temperature, type and concentration of electrolyte on the adsorption of lithium into amorphous hydroxide have been investigated. As a consequence of this phase change lithium was desorbed. In the presence of NaCl and, more particularly, of MgCl₂ both the processes of lithium adsorption and the alumina phase change can be considerably modified.