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聚焦护理模式对颅内动脉瘤血管内介入栓塞术患者心理状况、自理能力、疾病不确定感的影响

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护理实践与研究 2021年第16期18卷 2459-2463页

作者：刘芬刘耀君广东省中山市小榄人民医院介入室 528415

目的分析颅内动脉瘤血管内介入栓塞术患者应用聚焦护理模式的临床效果。方法选取2018年1月—2020年10月医院行血管内介入栓塞术治疗的颅内动脉瘤患者150例,按组间基本特征匹配原则分为对照组70例和观察组80例。对照组实施常规护理,观察... 详细信息

目的分析颅内动脉瘤血管内介入栓塞术患者应用聚焦护理模式的临床效果。方法选取2018年1月—2020年10月医院行血管内介入栓塞术治疗的颅内动脉瘤患者150例,按组间基本特征匹配原则分为对照组70例和观察组80例。对照组实施常规护理,观察组实施聚焦护理模式,比较两组心理状况、自理能力及疾病不确定感改善情况。结果观察组干预后SAS评分、SDS评分低于对照组,两组比较差异有统计学意义(P<0.05)。观察组干预后MUIS评分低于对照组,自护能力及生活质量评分均高于对照组,两组比较差异有统计学意义(P<0.05)。观察组满意度高于对照组,两组比较差异有统计学意义(P<0.05)。结论聚焦护理模式应用于颅内动脉瘤介入栓塞术患者,能够有效缓解患者负性情绪,减轻患者的疾病不确定感,促进患者自护能力和生活质量提升,且满意度高。

关键词：颅内动脉瘤聚焦护理自理能力血管内介入栓塞疾病不确定感

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会计信息失真的成因及对邮政企业的启示

邮政研究 2005年第4期21卷 29-30页

作者：刘要军石家庄学院河北石家庄050035

会计信息失真会严重影响到业务部门的产品决策、市场部门的营销决策和领导层的战略决策,因此邮政企业应引起高度重视。文章主要对会计信息失真的成因作了客观和主观方面的探讨,并在此基础上提出了邮政企业解决会计信息失真的办法和措施。

关键词：会计信息失真监督法制建设会计服务

立体动画电影发展空间研究——立体动画电影,新时代中国动画发展的契机

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现代电影技术 2009年第4期 34-37页

作者：刘跃军北京电影学院

文章认为数字电影技术已经日臻成熟,为数字立体动画电影的发展提供了有利条件,数字立体动画的发展为中国动画产业的发展带来了新的契机。文章同时指出了本土企业把握这一契机需要注意的几个关键问题。

关键词：数字立体电影数字立体动画三维动画立体空间效果

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

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不同母质红壤坡面产流产沙特征比较

水土保持学报 2018年第2期32卷 34-39页

作者：徐铭泽杨洁刘窑军杨广勇江西农业大学林学院南昌330045 江西省水土保持科学研究院南昌330029 江西省土壤侵蚀与防治重点实验室南昌330029

采用人工模拟降雨的方法,研究花岗岩、第四纪红黏土、红砂岩3种母质发育的红壤坡面产流产沙特征差异。结果表明:(1)地表产流方面,3种母质红壤地表产流时间为花岗岩红壤红砂岩红壤>第四纪红壤,其中45mm/h条件下花岗岩红壤的地表径流量为... 详细信息

采用人工模拟降雨的方法,研究花岗岩、第四纪红黏土、红砂岩3种母质发育的红壤坡面产流产沙特征差异。结果表明:(1)地表产流方面,3种母质红壤地表产流时间为花岗岩红壤红砂岩红壤>第四纪红壤,其中45mm/h条件下花岗岩红壤的地表径流量为红砂岩和第四纪红壤的1.79~2.47倍,场均产流速率为后者的1.58~2.32倍。(2)地表产沙方面,在45mm/h条件下,场均泥沙浓度为第四纪红壤>花岗岩红壤>红砂岩红壤;135mm/h条件下,场均泥沙浓度为花岗岩红壤>红砂岩红壤>第四纪红壤。雨强对红壤坡面产沙的影响较大,135mm/h条件下的泥沙浓度为45mm/h条件下的8.31~11.32倍。(3)径流组成方面,3种母质红壤中壤中流所占径流比最高为第四纪红黏土发育的红壤,在2种雨强条件下为8%~44%。雨强越大,地表汇流越明显;135mm/h条件下,红壤坡面地表径流量可达到总径流的79%~90%。(4)壤中流产流方面,壤中流产流时间顺序与地表产流一致,均为花岗岩红壤<红砂岩红壤<第四纪红壤,花岗岩红壤的壤中流量最小,仅为第四纪红壤的53%~67%,峰值为后者的42%~52%;对于红壤而言,停雨后的壤中流消退过程可以用指数函数方程进行预测,在所有试验条件下,其决定系数均在0.82以上,表明具有较好的预测性。

关键词：成土母质红壤壤中流产流特征

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高强低钙硅酸盐水泥熟料煅烧动力学研究

新型建筑材料 2015年第11期42卷 1-4,14页

作者：刘姚君汪澜马腾坤中国建筑材料科学研究总院绿色建筑材料国家重点实验室北京100024

通过对高强低钙硅酸盐水泥熟料和普通硅酸盐水泥熟料煅烧动力学过程进行对比，采用化学分析、X—ray衍射等手段，探讨了高强低钙硅酸盐水泥熟料煅烧动力学过程。研究发现：高强低钙硅酸盐水泥生料的易烧性优于普通硅酸盐水泥生料，烧成... 详细信息

通过对高强低钙硅酸盐水泥熟料和普通硅酸盐水泥熟料煅烧动力学过程进行对比，采用化学分析、X—ray衍射等手段，探讨了高强低钙硅酸盐水泥熟料煅烧动力学过程。研究发现：高强低钙硅酸盐水泥生料的易烧性优于普通硅酸盐水泥生料，烧成温度降低50～100℃；运用动力学公式与Arrhenius公式相结合分别计算煅烧反应活化能，高强低钙硅酸盐水泥熟料相对于普通硅酸盐水泥熟料烧成反应活化能降低32kJ／mol：规模化生产过程中，高强低钙硅酸盐水泥熟料相对于普通硅酸盐水泥熟料节约标煤5kg／t，综合减排C0243kg／t。

关键词：高强低钙硅酸盐熟料易烧性活化能节能减排

干法脱硫灰对C3A/C4AF水化的影响研究

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新型建筑材料 2018年第7期45卷 20-23,45页

作者：刘进强刘姚君汪澜田宇娇唐山学院环境与化学工程系河北唐山063000 中国建筑材料科学研究总院有限公司绿色建筑材料国家重点实验室北京100024 灵寿冀东水泥有限责任公司河北石家庄050501

通过电导率测试、XRD分析、水化放热速率测试等性能测试方法,研究CaSO_3·0.5H_2O/CaSO_4·2H_2O溶解速度变化规律、对C_3A、C_4AF水化的影响规律以及简单水泥体系条件下干法脱硫灰对水泥强度的影响规律。结果表明,CaSO_3·0.5H_2O在水... 详细信息

通过电导率测试、XRD分析、水化放热速率测试等性能测试方法,研究CaSO_3·0.5H_2O/CaSO_4·2H_2O溶解速度变化规律、对C_3A、C_4AF水化的影响规律以及简单水泥体系条件下干法脱硫灰对水泥强度的影响规律。结果表明,CaSO_3·0.5H_2O在水中是一个缓慢溶解的过程,能延缓C_3A/C_4AF的水化反应;干法脱硫灰对水泥强度有激发作用,当掺量控制在7.62%时,能实现强度不损失,保持在40MPa。

关键词：干法脱硫灰 CaSO3·0.5H2O C3A C4F 水化

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

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