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基于TQM理论的高职院校内部质量保证体系诊断与改进的思考

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武汉职业技术学院学报 2016年第4期15卷 30-34页

作者：刘昌喜曾珍武汉职业技术学院质量管理与教学督导处湖北武汉430074

高职院校实施内部质量保证体系诊断与改进是对高职教育质量保障体系构建的新要求,也是提高人才培养质量以及实现学校可持续发展的重要举措。高职院校应以TQM理论为指导,转变高职教育质量观,树立现代质量文化理念、构建科学高效的质量保... 详细信息

高职院校实施内部质量保证体系诊断与改进是对高职教育质量保障体系构建的新要求,也是提高人才培养质量以及实现学校可持续发展的重要举措。高职院校应以TQM理论为指导,转变高职教育质量观,树立现代质量文化理念、构建科学高效的质量保证体系和运行机制、运用信息化技术搭建校本数据平台,以切实履行好质量保证的主体责任,自我实现质量保证目标。

关键词：高职院校 TQM 质量保证体系诊断与改进

Frequency Regulation of VSC-MTDC System with Offshore Wind Farms

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Journal of Modern Power Systems and Clean Energy 2024年第1期12卷 275-286页

作者： Haoyu liu Chongru liu North China Electric Power University Beijing 102206China

Frequency regulation of voltage source converter-based multi-terminal high-voltage direct current(VSC-MTDC)system with offshore wind farms enhances the frequency stability by compensating the power for a disturbed AC ***,it is difficult to reasonably allocate frequency-regulation resources due to a lack of coordination mechanisms between wind farms and the MTDC ***,it is difficult for the frequency control of the wind farms to manage changes in wind speed;and the risk of wind-turbine stalls is ***,based on the kinetic energy of wind turbines and the power margin of the converters,the frequency-regulation capability of wind turbines is evaluated,and a dynamic frequency-support scheme considering the real-time frequency-support capability of the wind turbines and system frequency evolution is proposed to improve the frequency-support performance.A power adaptation technique at variable wind speeds is developed;the active power in the frequency-support stage and restoration stage is switched according to the wind speed.A hierarchical zoning frequency-regulation scheme is designed to use the frequency-regulation resources of different links in the MTDC system with wind *** simulation results show that the novel frequency-regulation strategy maintains frequency stability with wind-speed changes and avoids multiple frequency dips.

关键词： Wind generation voltage source converter-based multi-terminal high-voltage direct current(VSC-MTDC) frequency regulation cooperative control adaptive control variable wind speed

不同刈割茬数淮扬金花菜干粉营养成分的比较分析

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卫生研究 2015年第4期44卷 532-537页

作者：马伯艳刘长喜李雨庭魏臻武曹德明黑龙江中医药大学基础医学院哈尔滨150040 扬州大学动物科学与技术学院扬中市绿野秧草专业合作社

目的系统分析比较秋季大棚栽培淮扬金花菜（秧草）不同刈割茬数可食用嫩芽干粉营养成分。方法 2013年9月份种植的6座秧草大棚,每隔30天机器刈割一次,刈割6次,最后收集成熟期地上部分全草（种子未脱粒和脱粒后）以及干草秸,共计9茬。经... 详细信息

目的系统分析比较秋季大棚栽培淮扬金花菜（秧草）不同刈割茬数可食用嫩芽干粉营养成分。方法 2013年9月份种植的6座秧草大棚,每隔30天机器刈割一次,刈割6次,最后收集成熟期地上部分全草（种子未脱粒和脱粒后）以及干草秸,共计9茬。经低温真空干燥后超微粉碎成干粉。整个过程详细记录样品水分流失情况。采用标准食物营养成分检测方法进行系统的营养成分比较分析。结果前6茬刈割秧草嫩芽干粉中蛋白质含量〉28.5%,且含有18种氨基酸,9种必需氨基酸,氨基酸模式与人体氨基酸模式接近,限制氨基酸为色氨酸和蛋氨酸;总膳食纤维含量24.6%-28.4%,脂肪含量4.0%-6.0%;含有丰富的维生素、矿物质及微量元素。其中前3茬秧草嫩芽干粉蛋白质含量分别为38.6%、37.9%和35.9%,脂肪含量分别为4.3%、5.1%及5.0%,总膳食纤维含量为25.4%、24.6%和27.2%。结论秋季大棚栽培秧草前6茬刈割的嫩芽干粉含有丰富的营养成分,以高蛋白、高膳食纤维、低脂肪为特征,且相应营养成分及含量不因刈割茬数的增加而发生明显变化。但种子成熟期样品营养素含量急剧下降,均不具直接食用价值。

关键词：淮阳金花菜秧草营养分析茬数

陶瓷/纤维层间混杂复合材料设计制作及抗弹体冲击性能测试

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复合材料学报 2021年第8期38卷 2684-2693页

作者：王晓宏张丰发刘长喜王云龙毕凤阳张东兴黑龙江工程学院机电工程学院哈尔滨150030 特种纤维复合材料国家重点实验室北京102101 哈尔滨工业大学航天学院哈尔滨150008

掩体作为战场中指挥、防御、观察、射击的综合性军事工事,其观察口为薄弱点,防护能力的大小关系着其内部人员是否安全。本文以防护轻武器为设计目标,设计、制作一种纤维/陶瓷层间混杂复合材料,并对其防弹能力进行测试。首先,基于显式有... 详细信息

掩体作为战场中指挥、防御、观察、射击的综合性军事工事,其观察口为薄弱点,防护能力的大小关系着其内部人员是否安全。本文以防护轻武器为设计目标,设计、制作一种纤维/陶瓷层间混杂复合材料,并对其防弹能力进行测试。首先,基于显式有限元软件ABAQUS/Explicit,建立弹体冲击纤维/陶瓷层间混杂复合材料防护甲板的数值模型,研究混杂纤维与同种纤维、混杂纤维的不同比例及纤维的铺设角度对复合材料防护甲板抗冲击性能的影响。结果表明:两种纤维混杂且混杂比例为0.3~0.7、纤维铺设角度为:0°/30°/60°/90°/-60°/-30°/0°时防护效果最好。其次,根据模拟结果,利用缠绕成型和手糊工艺相结合的方式将高强玻璃纤维S-2/TDE-85环氧树脂复合材料层合板、SiC陶瓷及凯芙拉49纤维/TDE-85环氧树脂复合材料层合板依次堆叠,制作纤维/陶瓷层间混杂复合材料防护甲板试件。最后,利用改进的霍普金森压杆装置进行防护甲板的弹体冲击试验。结果表明:设计的防护甲板能够抵挡住平均速度为500 m/s子弹的贯穿,与理论计算的结果相符合。

关键词：层间混杂复合材料凯芙拉纤维玻璃纤维冲击数值模拟

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基于Kinect2.0的健身动作训练系统

智能计算机与应用 2020年第4期10卷 35-39页

作者：刘长喜付少锋西安电子科技大学计算机科学与技术学院西安710126

为减少在健身训练指导中存在的主观因素影响,促进健身运动的标准化、规范化,提出通过Kinect获取人体主要关节的运动,进一步转化为表征运动的线条图。利用Harris角点检测得到特征点,基于MOPS描述符进行特征匹配,采用等特征点比例分段法... 详细信息

为减少在健身训练指导中存在的主观因素影响,促进健身运动的标准化、规范化,提出通过Kinect获取人体主要关节的运动,进一步转化为表征运动的线条图。利用Harris角点检测得到特征点,基于MOPS描述符进行特征匹配,采用等特征点比例分段法进行分析,计算各项指标,为学员提供有效地建议。实验结果表明,对于一系列连续动作,对比结果与人为对比相比在细节方面更加优秀。

关键词： Kinect 连续动作对比训练辅助特征匹配关节姿态

A Novel Design of a Pre-separation Panel Structure to Protect Against the Impact of an Explosion in an Aircraft Plenum Chamber

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Acta Mechanica Solida Sinica 2024年第1期37卷 166-180页

作者： Zongxing liu Xiang Yang Jun liu School of Aeronautics Northwestern Polytechnical UniversityXi'an 710072China COMAC Shanghai Aircraft Design and Research Institute Shanghai 201210China

To reduce the damage of the pressurizing panel structure of a fuselage caused by an explosion at the“least risk bomb location”in an aircraft structure,a new pre-separation panel structure was designed to resist blast ***,the dynamic strain response and morphology of impact damage of the new pre-separation panel were measured in an impact damage ***,the commercial software LS-DYNA was used to calculate the propagation of the blast shock wave,and the results were compared with empirical equations to verify the rationality of the numerical calculation ***,the fluid–structure coupling method was used to calculate the damage process of the pre-separation panel structure under the impact of an explosion wave and an impact *** calculated results were in good agreement with the test results,which showed the rationality of the calculation method and the *** residual strength of the damaged pre-separation panel was significantly higher than that of the original damaged *** results show that the new pre-separation panel structure is reasonable and has certain significance for guiding the design of plenum chambers with strong resistance to implosion for aircraft fuselages.

关键词： Pre-separation panel structure Explosive response Residual strength Aircraft plenum chamber Least risk bomb location

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射孔-防砂联作防砂效果室内模拟与测试

油气井测试 2005年第2期14卷 64-66页

作者：杨胜来蒋利平刘长喜邓作庆石油大学北京102239 大庆石油管理局钻井二公司黑龙江大庆163413 大庆石油管理局射孔弹厂黑龙江大庆163853

通过测试,岩心靶防砂填充层的孔隙度达39.15%、油测渗透率为46.55μm2,说明防砂填充层的渗透性很好,能够满足油井高产要求。采用地面模拟装置、选择不同粒径的砂样进行防砂实验得出,140-200m砂样最大出砂浓度为0.07278%,更细的砂粒不出... 详细信息

通过测试,岩心靶防砂填充层的孔隙度达39.15%、油测渗透率为46.55μm2,说明防砂填充层的渗透性很好,能够满足油井高产要求。采用地面模拟装置、选择不同粒径的砂样进行防砂实验得出,140-200m砂样最大出砂浓度为0.07278%,更细的砂粒不出砂。此结果表明,对大粒径的防砂效果好。

关键词：防砂效果室内模拟联作射孔通过测试模拟装置填充层孔隙度渗透率渗透性大粒径出砂岩心油井

Effectiveness and safety of acupuncture in treatment of pregnancyrelated symptoms:a systematic review and Meta-analysis

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Journal of Traditional Chinese Medicine 2024年第1期44卷 16-26页

作者： liu Tingting liu Tongou liu Mingfu School of Traditional Chinese Medicine Clinical Medicine Hubei University of Traditional Chinese MedicineWuhan 430000China First Clinical College of Hubei University of Traditional Chinese Medicine Wuhan 430000China Department of Acupuncture and Tuina Affiliated Hospital of Hubei University of Traditional Chinese MedicineHubei Provincial Hospital of Traditional Chinese MedicineWuhan 430000China

OBJECTIVE:To systematically evaluate the efficacy and safety of acupuncture(AM)in the treatment of pregnancyrelated symptoms such as acute vomiting during ***:We comprehensively searched the available literature up to November 2021,including Pub Med,Embase,Cochrane Library,Chinese Biomedical Literature Database,and China National Knowledge Infrastructure Database,for randomized controlled trials(RCTs)on AM for the treatment of severe vomiting,insomnia,pharyngeal and pelvic pain,mood abnormalities,and dyspepsia during ***:Sixteen RCTs with a cumulative sample size of 1178 cases were *** these,964 patients were included in the *** Meta-analysis results showed that AM was more efficient than Western medicine in treating discomfort during pregnancy[odds ratio(OR)=1.19,95%confidence interval(CI)(1.11,1.28),P<0.01].AM was better than the control group in improving the visual analog scale scores[standard mean difference(SMD)=0.62,95%CI(0.53,0.71),P<0.01].AM was superior to the control group in improving Numerical Rating Scale(NRS)symptom scores[OR=7.31,95%CI(3.36,15.94),P<0.01].There was no significant difference in adverse effects between the AM and sham-AM groups and the analgesic drug group[OR=0.70,95%CI(0.39,1.28),P=0.25],but the treatment and control groups had mild adverse effects with a low ***:AM is more effective than other treatments or pharmacotherapy alone in the treatment of pregnancy-related symptoms,and is relatively ***,the quality of the included trials was rather poor,and high-quality studies are required to confirm our findings.

关键词： acupuncture pregnancy nausea vomiting sleep initiation and maintenance disorders low back pain pelvic pain mood abnormalities Meta-analysis systematic review

Stochastic Unit Commitment with High-Penetration Offshore Wind Power Generation in Typhoon Scenarios

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Journal of Modern Power Systems and Clean Energy 2024年第2期12卷 535-546页

作者： Yanqi liu Dundun liu Hongcai Zhang State Key Laboratory of Internet of Things for Smart City and Department of Electrical and Computer Engineering University of MacaoMacao 999078China University of Macao Zhuhai UM Science and Technology Research Institute ZhuhaiChina

To tackle the energy crisis and climate change,wind farms are being heavily invested in across the *** China's coastal areas,there are abundant wind resources and numerous offshore wind farms are being *** secure operation of these wind farms may suffer from typhoons,and researchers have studied power system operation and resilience enhancement in typhoon ***,the intricate movement of a typhoon makes it challenging to evaluate its spatial-temporal *** published papers only consider predefined typhoon trajectories neglecting *** address this challenge,this study proposes a stochastic unit commitment model that incorporates high-penetration offshore wind power generation in typhoon *** adopts a data-driven method to describe the uncertainties of typhoon trajectories and considers the realistic anti-typhoon mode in offshore wind farms.A two-stage stochastic unit commitment model is designed to enhance power system resilience in typhoon *** formulate the model into a mixed-integer linear programming problem and then solve it based on the computationally-efficient progressive hedging algorithm(PHA).Finally,numerical experiments validate the effectiveness of the proposed method.

关键词： Unit commitment two-stage stochastic programming offshore wind farm typhoon