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Journal of Southeast University(english Edition) 2017年第4期33卷 457-465页

作者： li en School of Architecture Xi’an University of Architecture and Technology Xi’an 710055China

The heating load simulation models of the residential buildings in Lhasa are established for enhancing the space organization’s adaptability to climate and radiation and improving its energy saving *** space organization items a e analyzed for both the existing buildings without insulation and new buildings with good *** items include orientation design,south a d north balcony design,the north and south partition wall’s position design,storey height design and window-wall ratio *** results show that orientation is the key design element for energy saving design,and adverse orientation can obviouslyincrease heating energy consumption;south and north balconies can reduce winter heating energy consumption;partition walls move to the north,which means that the south room’s big depth design leads to less heating energy consumption,but the effect is not inconspicuous;smaier storey height results in less heating *** the existing buildings,the window-wall ratio of south side has a balance point for energy saving design in the calculation *** the new buildings with good insulation,enlarging the south window-wal ratio can continuously reduce heating energy consumption,but the energy saving rate between models gets *** heating energy consumption comparison study between the common model and optimal space design model demonstrates that the energy saving design can significantly reduce heating energy consumption

关键词： residential building space organization heating energy consumption energy saving design

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粉煤气化技术气化炉挂渣操作结论

辽宁化工 2024年第1期53卷 86-88,128页

作者：李自恩张龙张胜梅雷尚敏陕煤集团榆林化学有限责任公司陕西榆林719000

气化炉在运行过程中易出现水冷壁浇注料脱落、挂渣松散等工况,会造成水冷壁泄漏频繁,严重影响气化炉安全稳定长周期运行。参考某公司1、某公司2和某公司3的气化炉在实际运行状况中的挂渣经验,结合其工艺流程和运行数据,通过对比分析不... 详细信息

气化炉在运行过程中易出现水冷壁浇注料脱落、挂渣松散等工况,会造成水冷壁泄漏频繁,严重影响气化炉安全稳定长周期运行。参考某公司1、某公司2和某公司3的气化炉在实际运行状况中的挂渣经验,结合其工艺流程和运行数据,通过对比分析不同煤灰组分和炉膛温度等操作情况,揭示气化炉采用不同煤质和煤灰熔点对挂渣效果之间的相关性。

关键词：粉煤炉气化炉水冷壁挂渣

维普期刊数据库博看期刊

“Parenchyma transection-first”strategy is superior to“tunnel-first”strategy in robotic spleen-preserving distal pancreatectomy with conservation of splenic vessels

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Hepatobiliary & Pancreatic Diseases International 2023年第6期22卷 639-644页

作者： Meng-Yang li Hao-Zhe Cui Jia-Ning Hao Da-Bin Xu en-li Zhang Zhu-Zeng Yin Zhi-Ming Zhao Faculty of Hepato-Pancreato-Biliary Surgery The First Medical CenterChinese PLA General HospitalBeijing 100853China School of Medicine Nankai UniversityTianjin 300071China

Background: Creating a tunnel between the pancreas and splenic vessels followed by pancreatic parenchyma transection(“tunnel-first” strategy) has long been used in spleen-preserving distal pancreatectomy(SPDP) with splenic vessel preservation(Kimura’s procedure). However, the operation space is limited in the tunnel, leading to the risks of bleeding and difficulties in suturing. We adopted the pancreatic “parenchyma transection-first” strategy to optimize Kimura’s procedure. Methods: The clinical data of consecutive patients who underwent robotic SPDP with Kimura’s procedure between January 2017 and September 2022 at our center were retrieved. The cohort was classified into a “parenchyma transection-first” strategy(P-F) group and a “tunnel-first” strategy(T-F) group and analyzed. Results: A total of 91 patients were enrolled in this cohort, with 49 in the T-F group and 42 in the P-F group. Compared with the T-F group, the P-F group had significantly shorter operative time(146.1 ± 39.2 min vs. 174.9 ± 46.6 min, P enic vessel preservation occurred in 10.2% patients in the TF group and 2.4% in the P-F group( P = 0.14). The grade 3/4 complications were similar between the two groups( P = 0.57). No differences in postoperative pancreatic fistula, abdominal infection or hemorrhage were observed between the two groups. Conclusions: The pancreatic “parenchyma transection-first” strategy is safe and feasible compared with traditional “tunnel-first strategy” in SPDP with Kimura’s procedure.

关键词： Pancreatic parenchyma transection-first strategy Kimura’s procedure Splenic vessel preservation Minimally invasive surgery

基于CWT-sCARS的土壤铜含量高光谱反演

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蚌埠学院学报 2024年第2期13卷 17-23页

作者：张世文李唯佳李恩伟朱曾红孔晨晨安徽理工大学地球与环境学院安徽淮南232001 安徽理工大学空间信息与测绘工程学院安徽淮南232001

光谱变量的有效程度与土壤铜含量的反演精度密切相关。基于原始反射率以及不同分解尺度下的小波系数,本研究采用连续小波变换(CWT)算法、稳定性竞争自适应重加权采样(sCARS)算法和随机森林(RF)算法对土壤铜含量进行了反演与验证。研究... 详细信息

光谱变量的有效程度与土壤铜含量的反演精度密切相关。基于原始反射率以及不同分解尺度下的小波系数,本研究采用连续小波变换(CWT)算法、稳定性竞争自适应重加权采样(sCARS)算法和随机森林(RF)算法对土壤铜含量进行了反演与验证。研究结果表明:连续小波变换可以有效提高光谱特征与土壤铜含量之间的相关性,不同分解尺度对应的最大相关系数中,最大值位于Scale 8分解尺度下1343 nm处,相关系数为0.60;使用sCARS算法可以显著减少特征变量的数量,结合CWT变换和sCARS算法可以显著减轻数据冗余,提高土壤Cu含量的反演精度。该研究可为利用高光谱遥感技术,快速、高精度反演土壤Cu含量提供重要参考。

关键词：高光谱反演连续小波变换稳定性竞争自适应重加权采样

A new chain-like heteropolytungstate formed by Keggin cluster units:Synthesis and structure of[H2bpy]3[SiMnW(11)O(39)].1.25H2O

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Chinese Chemical Letters 2007年第1期18卷 81-84页

作者： Jing Xin Meng Ying Ma Xin Xin Xu Yang Guang li en Bo Wang Key Laboratory of Polyoxometalate Science of Ministry of Education Department of Chemistry Northeast Normal University Ren Min Street No.5268 Changchun Jilin 130024 PR China

A new heteropolytungstate, [H2bpy]3[SiMnW11O39]· 1.25H2O （1）, has been prepared under mild hydrothermal conditions and structurally characterized by single crystal X-ray diffraction. It is the first characterized compound containing ID zigzag chain of transition metal substituted Keggin heteropolytungstate, which is connected through a common oxygen atom. The elemental analysis and IR of it are also described.

关键词： Heteropolytungstate Keggin clusters Zigzag chain

Medicine in Future and Advantages of Integrated Chinese and Western Medicine

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Chinese Journal of Integrative Medicine 2019年第2期25卷 87-90页

作者： ZHANG Jiang-hua WU Mi-shan WANG Yue-fen JIA Ying-min li en School of Integrated Traditional Chinese and Western Medicine Hebei Medical University Department of Calorimetry Hebei College of Traditional Chinese Medicine Department of Nephropathy Beijing Hospital of Traditional Chinese Medicine Affiliated to Capital Medical University Department of Nephrology Shunyi BranchBeijing Hospital of Traditional Chinese Medicine

The history of medical development shows that oriental medicine, or traditional medicine, was born through medical practice during the times when science and technology were immature and underdeveloped, whereas with the development of science and technology, Western medicine, or modern medicine, was born through experimental analysis and research. With the development of medicine, the pros and cons of both medical systems become increasingly evident. How to integrate them and learn from each other will be the direction of future development of medicine. The formation and development of integrated medicine will, inevitably, usher in a new era for medicine.

关键词： Chinese medicine Western medicine integrated Chinese and Western medicine advantage thinking of model

反应堆压力容器管座贯穿件与顶盖J型焊缝缺陷分析及改进

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电焊机 2024年第4期54卷 77-83页

作者：李恩何冰江国焱戴光明刘盛波东方电气(广州)重型机器有限公司广东广州511455

反应堆压力容器(reactor pressure vessel,RPV)管座贯穿件之间的J型密封焊缝的结构形式复杂,焊接难度大,极易产生焊接缺陷。针对某J型焊缝在水压试验后出现的渗透探伤显示进行了深入研究,通过金相分析、扫描电镜、能谱分析等手段对焊接... 详细信息

反应堆压力容器(reactor pressure vessel,RPV)管座贯穿件之间的J型密封焊缝的结构形式复杂,焊接难度大,极易产生焊接缺陷。针对某J型焊缝在水压试验后出现的渗透探伤显示进行了深入研究,通过金相分析、扫描电镜、能谱分析等手段对焊接缺陷产生的原因进行了深入分析,确定了缺陷产生的根本原因为焊接过程中焊缝熔池异物侵入导致的晶间夹杂而非DDC(高温失塑裂纹)裂纹,水压试验后使用钢丝刷对J型焊缝表面进行抛光,焊缝表面状态发生了变化,焊缝中埋藏的微小夹杂缺陷暴露于表面,在随后的焊缝渗透检验(PT)形成显示,该缺陷为浅表缺陷(表面1 mm以内),在余量允许的情况下,可通过打磨的方式去除,其关键工艺改进措施为焊接过程的清洁度管控(包括:工位清洁管控、避免焊接-打磨交叉作业、焊前除尘等)。

关键词： J型焊缝渗透检验夹杂改进措施

维普期刊数据库博看期刊

Coupling real-time simulation of power supply,trains and dispatching for urban rail transit

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Transportation Safety and environment 2021年第3期3卷 267-279页

作者： Yu Zhang Zhaoyang Zhang li’en Xu Ting Ying Jianghong li Huaguo Chen Yunqing Hu Guangming Qing CRRC Zhuzhou Institute Co. Ltd.Zhuzhou 412001P.R.China

In order to study the interaction among the traction power supply,the train group and the operation dispatching of urban rail transit,a coupling simulation system of power supply system,trains and dispatching management is *** order to solve the problems of different timescales and difficult cooperation operation for related subsystems,a multi-bus distributed real-time network architecture based on hierarchical management of communication data is established,and simulation management software is developed to facilitate the free expansion of the simulation ***,the track line,train operation and other large timescale subsystems are realized by the pure digital *** the time-sensitive subsystems,such as train traction system,braking system,auxiliary power supply system and network system etc.,are built by the semi-physical *** this article,the system structure and the main implementation principle of each simulation subsystem are given in detail,and the system is tested and verified at the *** results show that the simulation system can meet the expected requirements.

关键词： coupling simulation power supply train dispatch real-time simulation urban rail transit

双烯丙醇一锅法合成的有机化学综合实验教学设计

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贵州师范学院学报 2024年第6期40卷 68-75页

作者：刘长青李慧娟张恩立袁明薛洪宝蚌埠医科大学药物合成教研室安徽蚌埠233030

结合课题组的前期研究成果,介绍了一个格氏试剂、炔基砜和查尔酮的一锅法合成双烯丙醇的有机化学综合实验教学设计。产物结构经过^(1)H NMR、^(13)C NMR和HRMS表征,并通过自动熔点仪测定出产物的熔点。实验中涉及格氏试剂的制备以及化... 详细信息

结合课题组的前期研究成果,介绍了一个格氏试剂、炔基砜和查尔酮的一锅法合成双烯丙醇的有机化学综合实验教学设计。产物结构经过^(1)H NMR、^(13)C NMR和HRMS表征,并通过自动熔点仪测定出产物的熔点。实验中涉及格氏试剂的制备以及化学性质的研究,丰富了有机化学实验的教学内容。将科研成果融入到有机化学综合实验教学中,不仅能够锻炼学生的综合实验技能和提高学习兴趣,而且能够拓宽学生的科学研究视角和激发学生的创新思维能力;同时,这也能为学生本科毕业论文设计的开展打下扎实的基础。

关键词：教学设计有机化学综合实验格氏试剂炔基砜查尔酮双烯丙醇