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杂拟谷盗的热适应特性  [PDF]
夏继刚,王立志,李秉一,李晓晨
应用昆虫学报 , 2007,
Abstract: 为了解杂拟谷盗triboliumconfusumjacquelinduval的热适应特性,将杂拟谷盗分别于15,25和35℃下驯化2周后,用温度梯度仪测量在不同温度驯化下杂拟谷盗的最适温度、临界低温和临界高温。结果表明,驯化温度对杂拟谷盗最适温度、临界低温和临界高温的影响极显著(p<0
直驱泵控电液位置伺服系统模糊滑模控制仿真与实验研究
Simulation and Experimental study of Fuzzy Sliding Mode Control for Direct Drive Bump-controlled Electro-hydraulic Position Servo System
 [PDF]

高岗,郑建明,章小林,李言,肖继明,肖敏
- , 2015,
Abstract: 针对直驱泵控电液位置伺服系统采用普通滑模控制存在高频抖振现象以及跟踪控制性能欠佳的问题,在普通滑模控制的基础上引入模糊控制量来柔化控制信号,从而削弱滑模切换时产生的剧烈抖振,提高电液位置伺服系统控制精度和稳定性。设计了比例切换模糊滑模控制器,实现了利用模糊控制输出项柔化滑模切换控制。采用滑模控制和模糊滑模控制对单位阶跃响应和余弦跟踪特性进行了仿真与实验研究。结果表明:模糊滑模控制能显著提高直驱泵控系统的动态响应速度和稳态控制精度,增强系统的鲁棒性,削弱普通滑模控制存在的高频抖振现象。
Because high-frequency chattering and poor tracking control performance exist in a direct drive bump-controlled electro-hydraulic position servo system when a common sliding mode control is used, we introduce a fuzzy control variable into the common sliding mode control to soften the control signal, thus weakening the severe chattering that arises from the sliding mode switching and improving the control precision and stability of the electro-hydraulic position servo system. The proportional switching fuzzy sliding mode controller is designed based on the above thought and is softened by its output. The simulation and experiments on the unit step response and cosine tracking characteristics have been carried out with the sliding mode control and fuzzy sliding mode control respectively. The results show that the fuzzy sliding mode control can remarkably increase the speed of dynamic response and steady-state control accuracy, enhance the robustness of the direct drive bump-controlled electro-hydraulic position servo system and weaken the high frequency chattering that exists in common sliding mode control
水驱油藏开发效果评价指标综述
The Evaluation Index of the Development Effect of Water Drive Reservoir
 [PDF]

汪宁宇, 王梦雨, 刘照钰, 吴东莹
Open Journal of Nature Science (OJNS) , 2016, DOI: 10.12677/OJNS.2016.44054
Abstract:
为深刻了解水驱油藏目前开发条件下的实际开发状况,进而对油田生产提出指导,阶段性的对油藏开发效果进行评价就显得十分重要。开发评价指标是整个评价的基础,主要包括:水驱储量控制程度、水驱储量动用程度、可采储量、采收率、能量的保持和利用程度、含水率与含水上升率、存水率、注水量、年产油量综合递减率。
In order to have a good grasp of water drive reservoir under the condition of actual development situation, and make guidance for oilfield production, the stage of reservoir development effect evaluation has important significance. Development of evaluation index is the basis of the evaluation, which mainly includes the degree of water drive reserve control, the degree of produced reserve by water drive, available reserves, extraction recovery, the degree of energy preservation and utilization, water content and water cut rising rate, water storage rate, water injection rate, and composite decline rate of annual oil production.
十二种药用植物乙醇提取物对谷蠹和赤拟谷盗成虫的驱避效应  [PDF]
黄衍章,卢燕会,李文静
应用昆虫学报 , 2010,
Abstract: 采用滤纸药膜选择法研究了蛇床子、茵陈、萹蓄等12种药用植物乙醇提取物对谷蠹rhizoperthadominica(fab.)和赤拟谷盗triboliumcastaneumherbst成虫的驱避效应。12种药用植物以蛇床子(cnidiummonnieri)提取物对谷蠹成虫的驱避效果最佳,786μg/cm2处理24h对谷蠹的驱避率达93%;茵陈(artemisiacapillaries)提取物对赤拟谷盗成虫的驱避效果最佳,用393μg/cm2处理72h的驱避率为95%,茵陈提取物以262μg/cm2放置7d后对赤拟谷盗成虫的驱避率可达ⅴ级水平。茵陈提取物对赤拟谷盗的驱避持效期长、效果好,具有一定的开发前景。
电子束处理对杂拟谷盗的辐照效应  [PDF]
陈云堂,张晓燕,郭东权,吕晓华,张建伟,杨保安,杜阅光,田占军
河南农业科学 , 2011,
Abstract: 利用不同剂量的电子束对杂拟谷盗幼虫、成虫进行辐照处理,研究其辐照效应。结果表明:杂拟谷盗幼虫对电子束辐照的敏感性高于成虫。幼虫经250Gy剂量辐照后,可以完全阻止其发育为成虫,在14d内全部死亡;成虫经250Gy剂量辐照后,则需42d才能全部死亡,而且不能产生下一代成虫。250Gy的剂量可以作为电子束辐照防治杂拟谷盗的参考剂量。
几种植物质杀虫剂对杂拟谷盗的毒力试验  [PDF]
华南农业大学学报 , 1993,
Abstract: 试验证实,印楝素,闹着花-Ⅲ,黄杜鹃花乙酸乙酯抽提物和藜芦植物粉均能有效地抑制杂拟谷盗种群的繁殖,有开发利用的价值。印楝素对幼虫的生长发育抑制作用较强,是防治杂拟谷盗的一种高效而安全的新型杀虫剂。
基于模糊综合评价的海上直驱风电机组运行状态评估
Fuzzy synthetic evaluation of the operational status of offshore direct-drive wind turbines
 [PDF]

黄必清,何焱,王婷艳
- , 2015,
Abstract: 直驱式技术正在成为海上风电机组传动系统采用的主流技术之一, 对其运行状态的实时正确评估显得极为迫切。该文提出一种集成了相关系数法、劣化度分析法和模糊综合评判等多种方法的风电机组运行状态评价模型。采用客观赋权法中的相关系数法来计算指标权重; 归一化指标参数采用劣化度分析法; 利用多层次模糊综合评价法, 自下而上、逐级地对风电机组各个子系统的运行状态进行评价。并对该评价模型进行实际直驱风机在线监测数据的应用分析, 评价结果符合实际运行数据的分析。该文研究结果可为海上风电场直驱式风电机组日常运行维护的管理提供决策辅助, 提高海上风电场运营效率。
Abstract:Direct drive motor systems for offshore wind turbines will improve reliability and reduce maintenance costs. This paper describes a real-time status evaluation model for offshore direct-drive wind turbines. This model integrates the correlation coefficient method, deterioration analyses and fuzzy synthetic evaluation. The correlation coefficient method determines the weights of various indexes. The deterioration analysis normalizes the indicator parameters. The bottom-up, step-by-step, multi-level fuzzy synthetic evaluation method assesses the status of each subsystem of the offshore direct-drive wind turbine. An analysis of online inspection data for a direct-drive wind turbine shows that the model results are consistent with real operational data. This model is helpful for managing routine operations and maintenance for offshore direct-drive wind turbines to improve the operational efficiency of offshore wind farms.
基于模糊综合评价的海上直驱风电机组运行状态评估
Fuzzy synthetic evaluation of the operational status of offshore direct-drive wind turbines
 [PDF]

黄必清,何焱,王婷艳
- , 2015,
Abstract: 直驱式技术正在成为海上风电机组传动系统采用的主流技术之一, 对其运行状态的实时正确评估显得极为迫切。该文提出一种集成了相关系数法、劣化度分析法和模糊综合评判等多种方法的风电机组运行状态评价模型。采用客观赋权法中的相关系数法来计算指标权重; 归一化指标参数采用劣化度分析法; 利用多层次模糊综合评价法, 自下而上、逐级地对风电机组各个子系统的运行状态进行评价。并对该评价模型进行实际直驱风机在线监测数据的应用分析, 评价结果符合实际运行数据的分析。该文研究结果可为海上风电场直驱式风电机组日常运行维护的管理提供决策辅助, 提高海上风电场运营效率。
Abstract:Direct drive motor systems for offshore wind turbines will improve reliability and reduce maintenance costs. This paper describes a real-time status evaluation model for offshore direct-drive wind turbines. This model integrates the correlation coefficient method, deterioration analyses and fuzzy synthetic evaluation. The correlation coefficient method determines the weights of various indexes. The deterioration analysis normalizes the indicator parameters. The bottom-up, step-by-step, multi-level fuzzy synthetic evaluation method assesses the status of each subsystem of the offshore direct-drive wind turbine. An analysis of online inspection data for a direct-drive wind turbine shows that the model results are consistent with real operational data. This model is helpful for managing routine operations and maintenance for offshore direct-drive wind turbines to improve the operational efficiency of offshore wind farms.
基于模糊综合评价的海上直驱风电机组运行状态评估
Fuzzy synthetic evaluation of the operational status of offshore direct-drive wind turbines
 [PDF]

黄必清,何焱,王婷艳
- , 2015,
Abstract: 直驱式技术正在成为海上风电机组传动系统采用的主流技术之一, 对其运行状态的实时正确评估显得极为迫切。该文提出一种集成了相关系数法、劣化度分析法和模糊综合评判等多种方法的风电机组运行状态评价模型。采用客观赋权法中的相关系数法来计算指标权重; 归一化指标参数采用劣化度分析法; 利用多层次模糊综合评价法, 自下而上、逐级地对风电机组各个子系统的运行状态进行评价。并对该评价模型进行实际直驱风机在线监测数据的应用分析, 评价结果符合实际运行数据的分析。该文研究结果可为海上风电场直驱式风电机组日常运行维护的管理提供决策辅助, 提高海上风电场运营效率。
Abstract:Direct drive motor systems for offshore wind turbines will improve reliability and reduce maintenance costs. This paper describes a real-time status evaluation model for offshore direct-drive wind turbines. This model integrates the correlation coefficient method, deterioration analyses and fuzzy synthetic evaluation. The correlation coefficient method determines the weights of various indexes. The deterioration analysis normalizes the indicator parameters. The bottom-up, step-by-step, multi-level fuzzy synthetic evaluation method assesses the status of each subsystem of the offshore direct-drive wind turbine. An analysis of online inspection data for a direct-drive wind turbine shows that the model results are consistent with real operational data. This model is helpful for managing routine operations and maintenance for offshore direct-drive wind turbines to improve the operational efficiency of offshore wind farms.
基于模糊综合评价的海上直驱风电机组运行状态评估
Fuzzy synthetic evaluation of the operational status of offshore direct-drive wind turbines
 [PDF]

黄必清,何焱,王婷艳
- , 2015,
Abstract: 直驱式技术正在成为海上风电机组传动系统采用的主流技术之一, 对其运行状态的实时正确评估显得极为迫切。该文提出一种集成了相关系数法、劣化度分析法和模糊综合评判等多种方法的风电机组运行状态评价模型。采用客观赋权法中的相关系数法来计算指标权重; 归一化指标参数采用劣化度分析法; 利用多层次模糊综合评价法, 自下而上、逐级地对风电机组各个子系统的运行状态进行评价。并对该评价模型进行实际直驱风机在线监测数据的应用分析, 评价结果符合实际运行数据的分析。该文研究结果可为海上风电场直驱式风电机组日常运行维护的管理提供决策辅助, 提高海上风电场运营效率。
Abstract:Direct drive motor systems for offshore wind turbines will improve reliability and reduce maintenance costs. This paper describes a real-time status evaluation model for offshore direct-drive wind turbines. This model integrates the correlation coefficient method, deterioration analyses and fuzzy synthetic evaluation. The correlation coefficient method determines the weights of various indexes. The deterioration analysis normalizes the indicator parameters. The bottom-up, step-by-step, multi-level fuzzy synthetic evaluation method assesses the status of each subsystem of the offshore direct-drive wind turbine. An analysis of online inspection data for a direct-drive wind turbine shows that the model results are consistent with real operational data. This model is helpful for managing routine operations and maintenance for offshore direct-drive wind turbines to improve the operational efficiency of offshore wind farms.
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