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螺杆发电技术在热电厂高除加热蒸汽系统的应用

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上海节能 2024年第3期 475-482页

作者：朱水兴汪书华戴林祥金飞靳刚王文杰杭州临江环保热电有限公司

由于工艺需要,热电厂生产环节中存在着各种各样的节流、减压装置,如减温减压器、减压阀、调节阀。因系统设计、压力匹配方面的原因,上述设备在完成各自功能的前提下,或多或少存在着做功能力损失即“?损”,看似无形,却实实在在消耗了可... 详细信息

由于工艺需要,热电厂生产环节中存在着各种各样的节流、减压装置,如减温减压器、减压阀、调节阀。因系统设计、压力匹配方面的原因,上述设备在完成各自功能的前提下,或多或少存在着做功能力损失即“?损”,看似无形,却实实在在消耗了可用能。如何把无形的节流减压损失转化为有形的电能输出,在完成基本功能的同时回收利用部分“?损”,实现能源梯级利用,是工程技术领域值得探究的重大课题。通过螺杆膨胀机发电技术在热电厂高压除氧器进汽系统的优化设计和应用示范,推广了一种节能新技术和新理念。

关键词：螺杆膨胀机余压余热发电蒸汽系统除氧器

基于WGCNA和动物实验探究骨坏死康复丸治疗激素性股骨头坏死的作用机制

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中药新药与临床药理 2024年第9期35卷 1306-1318页

作者：李文茜田亮玉张瑾沈彩红杨志敏郭家巧曹玉举郑州中医骨伤病医院河南郑州450016 河南省骨坏死研究中医药重点实验室河南郑州450016 河南省骨伤病中医诊疗工程技术研究中心河南郑州450016

目的探讨骨坏死康复丸治疗激素性股骨头坏死(Steroid-induced osteonecrosis of the femoral head,SONFH)的主要药理学基础和作用机制。方法通过中药系统药理学数据库与分析平台(Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform,TCMSP)等数据库对骨坏死康复丸的有效成分和靶点进行筛选。基于人类在线孟德尔遗传数据库(Online Mendelian Inheritance in Man,OMIM)和GeneCards数据库筛选SONFH的靶点。采用加权基因共表达网络分析(Weighted gene co-expression network analysis,WGCNA)对SONFH基因模块和枢纽基因进行鉴定。取三者的交集,获得骨坏死康复丸治疗SONFH的潜在靶点,并利用Cytoscape软件构建的“活性成分-靶点”网络筛选关键活性成分;然后,利用STRING数据库构建蛋白相互作用网络,筛选关键靶点。进行基因组百科全书(Kyoto Encyclopedia of Genes and Genomes,KEGG)信号通路富集分析,探索“关键活性成分-关键靶点-关键信号通路”之间的关系。最后,进行了关键活性成分与关键靶点的分子对接,并使用SONFH大鼠模型进行实验验证。结果得到骨坏死康复丸的146个化合物和相应的346个靶点,获得了4187个SONFH靶点。此外,基于WGCNA筛选出SONFH的12个基因模块和2556个枢纽基因,得到槲皮素、木犀草素和山柰酚是骨坏死康复丸治疗SONFH的关键活性成分,涉及PI3K/AKT等多条信号通路。分子对接显示关键活性成分与关键靶点之间存在较好的结合活性。动物实验结果证明骨坏死康复丸可通过上调AKT1、PI3K、RUNX2,下调Caspase-3和IL-6的表达改善骨生物学改变(P<0.01),验证了网络药理学部分预测结果。结论通过网络药理学和动物实验分析了骨坏死康复丸治疗SONFH的潜在作用机制,可为进一步研究其药理基础和靶点提供参考。

关键词：激素性股骨头坏死骨坏死康复丸网络药理学加权基因共表达网络分析(WGCNA) 实验验证大鼠

企业技术标准质押融资的可行性及路径浅析——以深圳市“20+8”产业为例

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中国标准化 2024年第7期 96-103页

作者：熊冬霞刘名概温助金深圳市先进质量管理技术研究院

技术标准质押融资可以为中小科技企业的融资开辟新渠道,对于促进中小企业的发展壮大意义重大。本文通过对深圳市“20+8”产业的中小企业融资需求及技术标准现状调研,识别了在该领域开展技术标准融资的必要性和可行性。并在分析借鉴国内... 详细信息

技术标准质押融资可以为中小科技企业的融资开辟新渠道,对于促进中小企业的发展壮大意义重大。本文通过对深圳市“20+8”产业的中小企业融资需求及技术标准现状调研,识别了在该领域开展技术标准融资的必要性和可行性。并在分析借鉴国内外标准融资政策的基础上,研究提出了深圳开展企业技术标准质押融资的基本路径,探析了技术标准的价值评估方法,以期为深圳市中小科技企业的融资拓展新路径,切实缓解中小科技企业融资难问题。

关键词： “20+8”产业中小科技企业技术标准质押融资

Blue Generation in a Periodically Poled LiTaO3 by Frequency Tripling and 1342 nm ND:YVO4 Laser

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Chinese Physics Letters 2002年第7期19卷 944-946页

作者： He jing-Liang Liu Jie Luo guo-Zhen Jia Yu-Lei Du Jian-Xin guo Cheng-Shan zhu Shi-Ning Laboratory of Modern Optics Shandong Normal University Ji'nan 250014 National Laboratory of Solid State Microstructure Nanjing University Nanjing 210093

We report on an efficient blue light generation in periodically poled LiTaO3 by the frequency tripling of a quasi-continuous 1342nm Nd:YVO4 laser. The period of the sample was 14.778µm. Blue light with an average power of 138mW was generated from a 18mm long crystal in a single-pass process under an average fundamental power of 713mW. The internal conversion efficiency was 19.3%.

关键词： Tantalum compounds

Simulation of Typhoon Muifa using a mesoscale coupled atmosphere–ocean model

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Acta Oceanologica Sinica 2014年第11期33卷 123-133页

作者： SUN Minghua DUAN Yihong zhu Jianrong WU Hui ZHANG jin HUANG Wei Chinese Academy of Meteorological Sciences University of Chinese Academy of Sciences National Meteorological Center State Key Laboratory of Estuary and Coastal East China Normal University Shanghai Typhoon Institute of China Meteorological Administration

A mesoscale coupled atmosphere–ocean model has been developed based on the GRAPES（Global and Regional Assimilation and Prediction System） regional typhoon model（GRAPES_TYM） and ECOM-si（estuary, coast and ocean model（semi-implicit））. Coupling between the typhoon and ocean models was conducted by exchanging wind stress, heat, moisture fluxes, and sea surface temperatures（SSTs） using the coupler OASIS3.0. Numerical prediction experiments were run with and without coupling for the case of Typhoon Muifa in the western North Pacific. To investigate the impact of using more accurate SST information on the simulation of the track and the intensity of Typhoon Muifa, experiments were also conducted using increased SST resolution in the initial condition field of the control test. The results indicate that increasing SST resolution in the initial condition field somewhat improved the intensity forecast, and use of the coupled model improved the intensity forecast significantly, with mean absolute errors in maximum wind speed within 48 and 72 h reduced by 32% and 20%, respectively. Use of the coupled model also resulted in less pronounced over-prediction of the intensity of Typhoon Muifa by the GRAPES_TYM. Moreover, the effects of using the coupled model on the intensity varied throughout the different stages of the development of Muifa owing to changes in the oceanic mixed layer depth. The coupled model had pronounced effects during the later stage of Muifa but had no obvious effects during the earlier stage. The SSTs predicted by the coupled model decreased by about 5–6℃ at most after the typhoon passed, in agreement with satellite data. Furthermore, based on analysis on the sea surface heat flux, wet static energy of the boundary layer, atmospheric temperature, and precipitation forecasted by the coupled model and the control test, the simulation results of this coupled atmosphere–ocean model can be considered to reasonably reflect the primary mechanisms underlying the inter

关键词： coupled atmosphere-ocean model GRAPES ECOM-si TC intensity SST

Influence of Ca on microstructure and corrosion resistance of Mg-14Li alloy

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China Foundry 2018年第2期15卷 132-138页

作者： Tian-shun Dong Xiao-bing Li Bin-guo Fu guo-lu Li jin-hai Liu school of material science and engineering hebei university of technologyTianjin 300132China

In order to improve the corrosion resistance of magnesium lithium alloy, Mg-14 Li alloy with different content of Ca(0, 3, 5, 10 wt.%) was prepared with a induction melting furnace. Electrochemical test and corrosion test were carried out in NaCl solution with different Cl^-concentrations. The results indicate that the microstructure of the Mg-14 Li alloy with Ca consists of dendritic β phase and eutectic structure(β+CaMg_2). With the increase of Ca addition from 0, to 3, 5, 10 wt.%, the corrosion resistance of the Mg-14 Li alloy initially increases first and then decreases, and that of alloy with 3% Ca is the best. Therefore, the corrosion resistance of Mg-14 Li alloy in NaCl solution can be effectively improved by adding proper amount of Ca. In addition, the concentration of Cl^-was one of important factors affecting the corrosion resistance of the Mg-14 Li alloy, and the influence of Ca was slighter than that of Cl^-.

关键词： magnesium lithium alloy Ca refine electrochemistry corrosion resistance

Optimizing ef?ciency of polycrystalline p-Si anode organic light-emitting diode

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Rare Metals 2016年第11期35卷 826-830页

作者： Jian-Xing Luo Wei Wang Hu Meng Wan-jin Xu guo-Gang Qin State Key Laboratory for Mesoscopic Physics School of Physics Peking University Beijing 100871 China Key Laboratory of Semiconductor Materials Chinese Academyof Science Beijing 100083 China

Optimizing efficiency of organic light-emitting diodes（OLEDs） with a structure of Al/glass/nanometerthick polycrystalline p-Si（NPPS） anode/SiO_2/N＇-bis-（1-naphthl）-diphenyl-1,1＇-biphenyl-4,4＇-diamine（NPB）/tris（8-hydroxyquinoline） aluminum（Alq_3）/4,7-diphenyl^（-1）,10-phenanthroline（BPhen）：Cs_2CO_3/Sm/Au were studied. The NPPS anodes were fabricated by magnetron sputtering（MS）Si and Ni layers followed by Ni-induced crystallization of the amorphous Si layers. By adjusting the resistivity of the p-Si target adopted in MS, the electroluminescent efficiency of the OLED was optimized. When the resistivity of the p-Si target is 0.01 Ω·cm, the current and power efficiency of the NPPS anode OLED reach maximum values of 6.7 cd ·A^（-1）and 4.64 lm ·W^（-1）, respectively, which are 2.7 and 3.1 times those of the resistivity-optimized bulk p-Si anode counterpart and 2.9 and 3.7 times those of the indium tin oxide（ITO） anode counterpart, and then, the physical reasons were discussed.

关键词： Organic light-emitting diode Polycrystallinep-Si Magnetron sputtering Electroluminescence

“双支撑、三结合”化学安全实践育人体系的构建

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大学化学 2024年第7期39卷 69-75页

作者：闫瑾童程霞李雅洁谷月屈学俭魏士刚朱万春郭玉鹏吉林大学化学学院长春130012 吉林大学化学国家级实验教学示范中心长春130012

随着社会对化学专业人才安全素养的要求日益提高,各高校逐渐意识到化学实验室安全教育的重要性。但当前的化学安全教育普遍缺乏系统性,为了扭转这样的局面,吉林大学化学学院依托化学国家级实验教学示范中心为平台,基于OBE (Outcome-Base... 详细信息

随着社会对化学专业人才安全素养的要求日益提高,各高校逐渐意识到化学实验室安全教育的重要性。但当前的化学安全教育普遍缺乏系统性,为了扭转这样的局面,吉林大学化学学院依托化学国家级实验教学示范中心为平台,基于OBE (Outcome-Based Education)教育理念,以硬件建设和知识载体为双支撑、采取“理论与实践相结合、课内课外相结合、虚拟与现实相结合”的三结合实施路径,构建化学安全实践育人体系,使学生安全意识、安全知识和应急能力螺旋式上升,全面提升学生的化学安全素养。

关键词：化学安全实践示范中心育人体系

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Bilateral Collaborative Optimization for Cloud Manufacturing Service

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Computers, Materials & Continua 2020年第9期64卷 2031-2042页

作者： Bin Xu Yong Tang Yi zhu Wenqing Yan Cheng He jin Qi Nanjing University of Posts and Telecommunications Nanjing21000China Nanjing pharmaceutical Co. Ltd.Nanjing21000China University of New South Wales Sydney2000Australia

Manufacturing service composition of the supply side and scheduling of the demand side are two important components of Cloud Manufacturing,which directly affect the quality of Cloud Manufacturing ***,the previous studies on the two components are carried out independently and thus ignoring the internal relations and mutual *** the two components on both sides of the supply and the demand of Cloud Manufacturing services at the same time,a Bilateral Collaborative Optimization Model of Cloud Manufacturing(BCOM-CMfg)is constructed in this *** BCOM-CMfg,to solve the manufacturing service scheduling problem on the supply side,a new efficient manufacturing service scheduling strategy is ***,as the input of the service composition problem on the demand side,the scheduling strategy is used to build the ***,the Cooperation Level(CPL)between services is added as an evaluation index in BCOM-CMfg,which reveals the importance of the relationship between *** improve the quality of manufacturing services more ***,a Self-adaptive Multi-objective Pigeon-inspired Optimization algorithm(S-MOPIO)is proposed to solve the *** results show that the BCOM-CMfg model has advantages in reliability and cost and S-MOPIO can solve BCOM-CMfg effectively.

关键词： Service composition service scheduling bilateral collaborative optimization evolutionary computation PIO