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燃煤电厂脱硫废水全膜法处理零排放中试试验

净水技术 2017年第5期36卷 86-90页

作者：王可辉徐志清王飞祖坤勇徐峰蒋芬赵军中国国电北京朗新明环保科技有限公司南京分公司江苏南京210019

燃煤电厂脱硫废水受煤质和脱硫工艺补充水的影响,废水水质波动较大,具体表现为废水成分复杂、高含盐量、高腐蚀性、回用困难等特点,成为制约电厂脱硫废水零排放的关键因素。通过全膜法工艺中试试验研究,即管式超滤膜(TUF)+高盐反渗透(SW... 详细信息

燃煤电厂脱硫废水受煤质和脱硫工艺补充水的影响,废水水质波动较大,具体表现为废水成分复杂、高含盐量、高腐蚀性、回用困难等特点,成为制约电厂脱硫废水零排放的关键因素。通过全膜法工艺中试试验研究,即管式超滤膜(TUF)+高盐反渗透(SWRO)+高压反渗透(DTRO)预处理和膜浓缩试验,结果表明该工艺可完全满足现行的脱硫废水零排放要求,可作为将来工程项目可行性的工艺方案。

关键词：脱硫废水膜浓缩减量全膜法零排放

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射频制导导弹全自动综合测试系统

上海航天 1998年第6期15卷 18-24页

作者：汪亚平陆克辉金玉红王辰光中国航天工业总公司八院809所

介绍用于射频制导导弹全自动综合测试系统的设计方法，论述系统测试功能及实现的关键技术，通过举例阐述系统应用软件设计。该系统从方案入手，提出并解决了几个关键技术，从而保证整个系统研制的质量，同时应用了若干项新技术，体现了... 详细信息

介绍用于射频制导导弹全自动综合测试系统的设计方法，论述系统测试功能及实现的关键技术，通过举例阐述系统应用软件设计。该系统从方案入手，提出并解决了几个关键技术，从而保证整个系统研制的质量，同时应用了若干项新技术，体现了系统设计的先进性。系统成功实现了对导弹全自动综测。试验表明，该系统集成方法先进，自动化程度高，性能稳定可靠，为系统实现导弹故障诊断目标打下了坚实的基础。

关键词：全自动综测综合测试系统射频制导导弹导弹

Double Position Servo Synchronous Drive System Based on Cross-Coupling Integrated Feedforward Control for Broacher

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Chinese Journal of Mechanical Engineering 2017年第2期30卷 272-285页

作者： Wenqi LU kehui JI Hanqing DONG Jianya ZHANG Quanwu wang Liang GUO Faculty of Mechanical Engineering and Automation Zhejiang Sci-Tech University College of Electrical Engineering Zhejiang University

Synchronization errors directly deteriorate the machining accuracy of metal parts and the existed method cannot keep high synchronization precision because of external disturbances. A new double position servo synchronous driving scheme based on semi-closed-loop cross- coupling integrated feedforward control is proposed. The scheme comprises a position error cross-coupling feedfor-ward control and a load torque identification with feed- forward control. A digital integrated simulation system for the dual servo synchronous drive system is established. Using a 20 t servo broacher, performance analysis of the scheme is conducted based on this simulation system and the simulation results show that systems with traditional parallel or single control have problems when the work- table works with an unbalanced load. However, the system with proposed scheme shows good synchronous perfor- mance and positional accuracy. Broaching tests are performed and the experimental results show that the maximum dual axis synchronization error of the system is only 8μm during acceleration and deceleration processes and the error between the actual running position and the given position is almost zero. A double position servo synchronous driving scheme is presented based on crosscoupled integrated feedforward compensation control, which can improve the synchronization precision.

关键词： Broacher Double drive system Cross coupling position servo synchronous Integrated feedforward

Synthesis of New Substituted 4-Amino-3,5-dinitropyridine Derivatives

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Chinese Journal of Chemistry 2013年第10期31卷 1299-1304页

作者： Congming Ma Yongbin wang kehui Hou Zuliang Liu Qizheng Yao School of Chemical Engineering Nanjing University of Science & Technology Nanjing Jiangsu 210094 China School of Pharmacy China Pharmaceutieal University Nanjing Jiangsu 210009 China

Facile synthetic routes for the preparation of some new 4-amino-3,5-dinitropyridine derivatives have been revealed. Nitration of 2-chloropyridin-4-amine （1） as a starting material, in an unexpected one-step reaction, to give dinitrated derivatives, followed by nucleophilic substitution reactions with sodium azide, potassium fluoride, ammonia, methylamine, and 4-nitroimidazol, respectively, gave substituted 4-amino-3,5-dinitropyridine derivatives. Meanwhile, its azide derivative underwent a ring closure conversion into 7-amino-6-nitro-[1,2,5]oxadiazolo[3,4-b]- pyridine-1-oxide. It is of significance that all of the nucleophilic substitution reactions were carried out under mild conditions.

关键词： organic chemistry synthesis 4-amino-3,5-dinitropyridine nucleophilic substitution

电力物联网背景下综合能源微网调度运行策略研究

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高压电器 2024年第6期60卷 172-180页

作者：王勉王敬华董克前山东理工大学电气与电子工程学院山东淄博255049 山东科汇电力自动化股份有限公司山东淄博255087 国网山东省电力公司山东淄博255000

在电力物联网深化综合能源系统变革的背景下,物联网从技术层面为综合能源服务提供了新的驱动力,但对其面向更多元的能源生产与消费情景提出了更多要求。传统微网系统已经难以适应新形势下调节多能耦合,及精准预测调度的愿景。文中以综... 详细信息

在电力物联网深化综合能源系统变革的背景下,物联网从技术层面为综合能源服务提供了新的驱动力,但对其面向更多元的能源生产与消费情景提出了更多要求。传统微网系统已经难以适应新形势下调节多能耦合,及精准预测调度的愿景。文中以综合能源系统为根基,提出面向电力物联网的综合能源微网框架。指出应用层面要实现经济优化调度、综合能源整体布局和能源交易。提出能源供应商面向市场的上、下两层迭代优化调度的新型策略。根据模型特点,上层是以综合能源供应商利润最大为目标函数的优化调度数学模型,采用MATLAB/CPLEX求解器求解。下层为能源市场出清的数学模型,采用粒子群算法求解。通过算例结果表明,综合能源市场能够寻优到最佳社会福利点,能源供应商能够合理分配、利用各能源设备,进一步验证了所提方法的实操性。

关键词：电力物联网综合能源微网能源市场经济优化调度

改善肿瘤缺氧耐药的血红蛋白-紫杉醇脂质体的制备及体外评价

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中国输血杂志 2024年第3期37卷 297-303页

作者：游训仪朱珂慧肖晶吴嘉康郑诗凡张阿龙钟锐王红曹晔刘嘉馨中国医学科学院北京协和医学院输血研究所四川成都610052 四川省肿瘤医院

目的制备改善肿瘤缺氧耐药的血红蛋白-紫杉醇脂质体。方法采用薄膜法制备血红蛋白-紫杉醇脂质体,通过纳米粒度仪考察其粒径、Zeta电位、多分散系数,通过高效液相色谱仪检测其包封率,并通过体外细胞实验评价其与肿瘤细胞的相互作用。结... 详细信息

目的制备改善肿瘤缺氧耐药的血红蛋白-紫杉醇脂质体。方法采用薄膜法制备血红蛋白-紫杉醇脂质体,通过纳米粒度仪考察其粒径、Zeta电位、多分散系数,通过高效液相色谱仪检测其包封率,并通过体外细胞实验评价其与肿瘤细胞的相互作用。结果血红蛋白-紫杉醇脂质体的最优制备条件为:磷脂总量为36 mM,DPPC∶DOPE∶胆固醇摩尔比为7∶2∶1,紫杉醇用量为3 mg,水化介质为3 mg·mL^(-1)Hb-PBS溶液,水化温度为室温,水化时间为0.5 h;平均粒径为(189.17±8.22)nm,多分散系数为0.14±0.023,紫杉醇包封率为(58.27±2.55)%,血红蛋白含量为(0.63±0.05)mg·mL^(-1)。体外细胞实验中,血红蛋白-紫杉醇脂质体对肿瘤细胞的杀伤作用约为紫杉醇脂质体的1.5倍、被肿瘤细胞摄取量约为紫杉醇脂质体的1.2倍及ROS生成量约为紫杉醇脂质体的1.8倍。结论制备了血红蛋白-紫杉醇脂质体,通过细胞实验证明其能通过改善缺氧、增加ROS产生促进肿瘤细胞凋亡,有望为肿瘤缺氧导致的耐药抵抗提供安全有效的新方法。

关键词：血红蛋白脂质体紫杉醇肿瘤缺氧

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便携式肠鸣音监测仪的设计与实现

中国医疗器械杂志 2019年第6期43卷 418-421页

作者：卫子然张鑫胡尊琪姜国城王克惠蔡清萍中国人民解放军海军军医大学第二附属医院普通外科上海市200003 宁波江丰生物信息技术有限公司宁波市315400

该文设计并实现了一种低功耗便携式肠鸣音监测仪。该监测仪采用骨传导传感器,可以长时间不间断地采集肠鸣音信号,通过蓝牙传输并通过手机应用程序实时记录、播放和分析数字音频。该文还设计了试用该监测仪对健康人和肠梗阻病人进行肠鸣... 详细信息

该文设计并实现了一种低功耗便携式肠鸣音监测仪。该监测仪采用骨传导传感器,可以长时间不间断地采集肠鸣音信号,通过蓝牙传输并通过手机应用程序实时记录、播放和分析数字音频。该文还设计了试用该监测仪对健康人和肠梗阻病人进行肠鸣音采集的实验,经过临床医生验证,表明该监测仪可以准确地记录和完整保存被检测人的肠鸣音信息,且不受外界环境干扰。

关键词：肠鸣音便携式骨传导:蓝牙实时监测

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侵彻弹体快速烤燃安全特性实验研究

爆炸与冲击 2020年第9期40卷 1-9页

作者：戴湘晖王可慧沈子楷段建李明古仁红李鹏杰杨慧柯明周刚西北核技术研究院陕西西安710024

为了考核大尺寸侵彻弹体的快速烤燃安全特性,利用自行研制的快速烤燃装置开展了实验。将质量为290 kg的侵彻弹体平吊在距航空燃油液面0.4 m的高度进行快速加热,实时采集弹体表面温度并拍摄实验过程,同时测量距弹体质心水平7 m处的反射... 详细信息

为了考核大尺寸侵彻弹体的快速烤燃安全特性,利用自行研制的快速烤燃装置开展了实验。将质量为290 kg的侵彻弹体平吊在距航空燃油液面0.4 m的高度进行快速加热,实时采集弹体表面温度并拍摄实验过程,同时测量距弹体质心水平7 m处的反射冲击波超压,最后从加热时间、弹体表面温度、实验后现场破坏情况、反射冲击波超压峰值、反应机理及响应类型等方面对大尺寸侵彻弹体的快速烤燃安全特性进行了详细分析。实验结果表明:侵彻弹体在537℃高温中加热16 min 4 s后开始发生剧烈反应,且弹体内腔下方炸药最先响应形成热点,逐渐积聚的高温高压气体将壳体撕裂后快速泄压,在7 m处测量得到的反射冲击波超压峰值为33.622 kPa,远小于该弹体在空气中完全爆轰产生的冲击波超压峰值。综合判断该侵彻弹体的快速烤燃响应类型为爆燃,其安全特性满足要求。

关键词：侵彻弹体快速烤燃安全特性冲击波超压

Response of spikelet water status to high temperature and its relationship with heat tolerance in rice

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The Crop Journal 2021年第6期9卷 1344-1356页

作者： Wencheng wang kehui Cui Qiuqian Hu Chao Wu Guohui Li Jianliang Huang Shaobing Peng National Key Laboratory of Crop Genetic Improvement MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze RiverCollege of Plant Science and TechnologyHuazhong Agricultural UniversityWuhan 430070HubeiChina Hubei Collaborative Innovation for Grain Industry Yangtze UniversityJingzhou 434023HubeiChina Guangxi Key Laboratory of Functional Phytochemicals Research and Utilization Guangxi Institute of Botanythe Chinese Academy of SciencesGuilin 541006GuangxiChina College of Agronomy Yangzhou UniversityYangzhou 221116JiangsuChina

In rice, high-temperature stress(HT) during flowering results in decreased grain yield via a reduction in spikelet fertility;however, the effect of plant water status on spikelet fertility under HT remains unknown. To investigate the relationship between spikelet water status and spikelet fertility under HT, two experiments were performed under temperature-controlled conditions using four genotypes with varying tolerance to HT. Rice plants were exposed to HT for seven consecutive days during the flowering stage under three soil water treatments(soil water potential 0, -20, and -40 kPa), as well as under hydroponic conditions in a separate experiment. HT significantly decreased spikelet fertility, pollen fertility, and anther dehiscence under each of the three water treatments. HT significantly increased the spikelet transpiration rate, and this change was accompanied by a significant decrease in the internal temperature of the spikelets. HT decreased pollen grain diameter in heat-sensitive genotypes. HT had varying effects on the water potential of panicles and anthers but increased anther soluble-sugar concentration. Different aquaporin genes showed different expression profiles under HT, and the expression levels of PIPs for plasma membrane intrinsic proteins and TIPs for tonoplast intrinsic proteins increased in anthers but decreased in *** analyses showed that anther dehiscence and pollen(spikelet) fertility were tightly associated with anther water status, and the expression levels of almost all anther aquaporin genes were significantly correlated with anther dehiscence under HT. In summary, an increased spikelet transpiration rate and decreased internal spikelet temperature were associated with alleviation of the effects of HT in rice genotypes with varying degrees of heat tolerance, and the response of spikelet water status to HT, involving increased total expression of aquaporins and soluble sugar content, thereby improved pollen fertility,ant

关键词： Aquaporins Heat stress Rice(Oryza sativa L.) Spikelet fertility Spikelet water status