气浮溶气新技术应用研究

介绍对炼油厂净化水车间一级浮选2^#池的改造，并与未改造的1^#池进行工业应用对比试验。试验结果表明，改造后大大提高了气浮处理效果，平均除油率达85％，且除油效果稳定，出水合格率比对比池提高20．4％。     

基于TMS320F240 DSP的电网谐波抑制全数字化控制的研究

为治理电力系统谐波污染 ,提高电力系统运行的安全稳定性 ,笔者对混合式并联有源电力滤波系统的结构和工作原理进行了分析和研究。该系统由无源滤波器和小容量有源滤波器串联构成 ,与被补偿的谐波负载并联连接。基于TMS32 0F2 4 0DSP开发套件 ,设计数字控制器主程序和中断服务子程序。实验结果表明 ,采用TMS32 0F2 4 0DSP编程方便并直观 ,运算精度高 ,控制器参数调整方便 ,易于实现各种控制策略。研究成果对DSP在有源电力滤波系统中的应用有重要参考价值。     

空中交通管制中人的可靠性模糊综合评价研究

人是空中交通管制系统中最灵活、最具适应性和最有价值的因素 ,而其行为也是最易受到不利影响的。由于空中交通管制中产生的人为失误 ,往往会导致航空器空中危险接近 ,严重的后果甚至会酿成空难。笔者从人 -机 -环境系统工程的观点出发 ,提出了空中交通管制中人的可靠性评价的指标体系结构模型。从人自身因素、软件、硬件、环境等方面指出了影响空中交通管制中人的可靠性的心理、空中环境等 17个子因素。运用模糊数学的方法 ,建立空中交通管制中人的可靠性定量评价模型 ,并用实例进行了验证。研究表明 ,该方法应用于空中交通管制中人的可靠性评价是一种新的尝试 ,其评价结果可为各级领导机构提供航空安全管理的决策依据。     

Predicting Satisfaction with Smart Irrigation Controllers and Their Long‐Term Use among Homeowners in Central Florida

Studies throughout Florida have shown smart controllers can substantially reduce irrigation under residential high‐water use conditions. However, successful promotion requires understanding the link between controller performance and the mechanisms by which they are adopted. This article compares irrigation water‐use and survey data collected from households installed with soil moisture sensor and evapotranspiration controllers. The study investigated whether the relative change in irrigation use between two years preceding and two years following installation was a reliable predictor of a homeowner's satisfaction with the device and likelihood of continuing to use it. Results indicated relative changes in irrigation use were only significantly associated with the quality of controller programming. Satisfaction with the controller was largely attributable to satisfaction with the appearance of the landscape and the perceived water‐saving effectiveness of the controller whereas the likelihood of its continued use was only significantly predicted by the level of technical knowledge regarding its functioning and whether or not challenges were experienced with it. Targeting homeowners with supplemental user‐friendly information may best support their long‐term adoption of smart controllers while providing irrigation contractors with training in implementation techniques would represent an integrated strategy for added reductions in residential outdoor water use.     

输油站库冬季消防稳高压系统的改进

介绍储运分公司北方输油站队，通过选用安全、防爆的数字显示温度控制器等技术手段，对储罐区消防给水管网裸露阀门及连接管段的防冻处理，实现冬季消防稳高压系统正常运行的施工工艺，并详细介绍了防爆数字显示温度控制器的工作原理及施工步骤。     

基于视频分析的空管员违规行为识别方法*

为利用视频数据对空管员违规行为进行智能化分析,降低不安全事件发生率,提出2阶段的违规行为识别模型（AR-ResNeXt）,基于实地调研构建空管员视频数据集,利用最小化动态多实例学习损失函数和中心损失函数,获得违规行为检测的判别特征表示,结合异常回归网络和ResNeXt网络,完成对空管员违规行为的时序区间检测与动作分类。研究结果表明:AR-ResNeXt模型在自制数据集中,其帧级AUC达到82.9%,分类准确率达到87.8%,可准确识别空管员发生违规行为的时序区间并进行分类,研究结果可为保障空中交通安全奠定基础。     

固定式可燃气体检测报警器运行管理中存在的问题及对策

针对固定式可燃气体检测报警器运行管理中存在的问题进行了分析,并提出整治措施.     

Control of TAME reactive distillation using Non-Dominated Sorting Genetic Algorithm-II

The control system performs poor in characteristics and even it becomes unstable, if improper values of the controller tuning constants are used. So it becomes necessary to tune the controller parameters to achieve good control performance with the proper choice of tuning constants. Many control problems involve simultaneous optimization of multiple variables that competing with each other. In this paper, the Non-Dominated Sorting Genetic Algorithm-II (NSGA-II) has been successfully applied to optimization of dynamic state of t-amyl-methyl-ether (TAME) reactive distillation process. This paper presents the tuning of Proportional-Integral-Derivative (PID) controllers by minimizing of two objective functions (overshoot and Integral of Absolute Error (IAE)) through the NSGA-II. Results show that genetic algorithm is more suitable method for optimal control of the TAME reactive distillation columns than traditional methods such as Tyreus-Luyben.     

管制员安全能力模型研究

为准确评价管制员安全能力,基于能力的定义和管制员工作职责,界定管制员安全能力的内涵;依据该内涵及其工作特性,建立由身体素质、业务素质和意识3个结构维度组成的管制员安全能力模型。其中,身体素质包括生理状况和心理状况;业务素质包括教育状况、培训状况、技能状况和经验状况;意识包括安全意识和工作意识。在各项指标性质差异较大情况下,利用功效系数法实现评价指标的标准化以减小误差,客观反映指标情况,同时采用G1-法和熵值法集成的主客观综合赋权法确定指标的权重,在一定程度上弥补主客观单一赋权的不足,最后通过逼近理想解排序法(TOPSIS)评价管制员安全能力。结果表明,按照从大到小排序对管制员安全能力的影响因素依次为意识、身体素质和业务素质。就对所论能力的影响而言,心理状况强于生理状况;技能状况强教育、培训和经验状况;安全意识对意识的影响大于工作意识。     

模糊控制在湿法脱硫烟气系统中的应用

介绍了石灰石-石膏湿法脱硫装置烟气系统的设计情况,重点讲述了增压风机动叶的控制,针对增压风机动叶系统时滞、非线性等特点,常规PID控制效果并不理想,设计出模糊控制器,仿真后证明了理论的正确性。