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Sexual Experience of Women after Gynecological Hysterectomy in the Department of Obstetrics and Gynecology of Yalgado Ouedraogo Teaching Hospital, Burkina Faso

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Open Journal of Obstetrics and Gynecology 2019年第9期9卷 1273-1283页

作者： Der Adolphe Somé Rélwendé barnabé Yaméogo Souleymane Ouattara Dantola Paul Kain Béwendin evélyne Komboigo Blandine Thiéba Bonané Department of Gynecology Obstetrics and Reproductive Medicine Souro Sanou University Teaching Hospital Bo-bo-Dioulasso Burkina Faso Department of Obstetrics and Gynecology Yalgado Ouedraogo University Teaching Hospital Ouagadougou Burkina Faso

Objective: To study the sexual experience of women after gynecological hysterectomy in the obstetrics and gynecology department of Yalgado Ouedraogo University Teaching Hospital in Burkina Faso. Patient and Method: We conducted a cross-sectional study from October 1, 2016 to March 30, 2017. It included any patient who had a gynecological indication for a hysterectomy in the Department of Obstetrics and Gynecology of Yalgado Ouedraogo University Teaching Hospital (CHU-YO) during the study period. A total of 85 patients were included. We collected information from the consultation records, clinical records, and operating room registries and by surveying the patients themselves. Result: The frequency of hysterectomy in the gynecological period was 3.9%. The mean age of the patients was 51.71 (extremes: 35 and 66 years) and the mean parity was 4.8. Married women were the majority. Fibromyoma and genital prolapse accounted for 56.47% and 23.53% respectively of operative indications. Regarding postintervention sexuality, 29.41% of women declared no longer having sexual desire. Also, they complained of vaginal dryness (31.8%), decreased frequency of orgasm (42.3%), dyspareunia (37.65). Sexual dysfunction was present in 82.35% of women. There was a statistically significant difference between global sexual functioning and geographic origin, educational attainment, socio-economic level, surgical approach, preintervention sexual counseling, women’s psychological profile and their emotional relationship with their spouses. Conclusion: The psychosexual soundness of hysterectomy is important. A diagnosis of sexual disorders prior to the intervention and psychological follow-up throughout the therapeutic process of the pathology indicative of a hysterectomy is necessary for successful postoperative sexuality.

关键词： Sexual Experience Gynecological Hysterectomy Satisfaction Ouagadougou Burkina Faso

Estimating Risk-aware Flexibility Areas for Electric Vehicle Charging Pools via AC Stochastic Optimal Power Flow

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Journal of Modern Power Systems and Clean Energy 2023年第4期11卷 1247-1256页

作者： Juan S.Giraldo Nataly bañol Arias Pedro P.Vergara Maria Vlasiou Gerwin Hoogsteen Johann L.Hurink Energy Transition Studies Group Netherlands Organisation for Applied Scientific Research(TNO)Amsterdam1043 NTThe Netherlands Department of Electrical Engineering Mathematics and Computer ScienceUniversity of TwenteEnschede7522 NBThe Netherlands Intelligent Electrical Power Grids Group Electrical EngineeringMathematics and Computer ScienceDelft University of TechnologyDelft2628 CDThe Netherlands

This paper introduces an AC stochastic optimal power flow(SOPF)for the flexibility management of electric vehicle(ev)charging pools in distribution networks under *** AC SOPF considers discrete utility functions from charging pools as a compensation mechanism for eventual energy not served to their charging *** application of the AC SOPF is described where a distribution system operator(DSO)requires flexibility to each charging pool in a day-ahead time frame,minimizing the cost for flexibility while guaranteeing technical *** areas are defined for each charging pool and calculated as a function of a risk parameter involving the uncertainty of the *** show that all players can benefit from this approach,i.e.,the DSO obtains a riskaware solution,while charging pools/tasks perceive a reduction in the total energy payment due to flexibility services.

关键词： Electric vehicle flexibility management stochastic optimal power flow(SOPF) risk awareness compensation mechanism

Ionization Process of Atoms by Intense Femtosecond Chirped Laser Pulses

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Journal of Modern Physics 2013年第10期4卷 20-26页

作者： Stéphane Laulan Jérémie Haché Harouna S. ba Samira barmaki Laboratoire de Physique Computationnelle et Photonique Université de Moncton Campus de Shippagan Shippagan Canada

We numerically investigate the ionization mechanism in a real hydrogen atom under intense fem to second chirped laser pulses. The central carrier frequency of the pulses is chosen to be 6.2 ev (λ = 200 nm), which corresponds to the fourth-harmonic of the Ti:Sapphire laser. Our simulation of the laser-atom interaction consists on numerically solving the three-dimensional time-dependent Schrodinger equation with a spectral method. The unperturbed wave functions and electronic energies of the atomic system were found by using an L2 discretization technique based on the expansion of the wave functions on B-spline functions. The presented results of kinetic energy spectra of the emitted electrons show the sensitivity of the ionization process to the chirp parameter. Particular attention is paid to the important role of the excited bound states involved in the ionization paths.

关键词： Hydrogen Atom Chirped Laser Multiphoton Ionization Population Transfer Nonperturbative Approach

Spectroscopic Electrochemical Properties and DFT Calculation of 1-Aryltriazenes

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International Journal of Organic Chemistry 2023年第4期13卷 109-128页

作者： Insa Seck Mohamed Lamine Sall Atoumane Ndiaye Samba Fama Ndoye Lalla Aïcha ba Matar Seck Organic Chemistry Coordination Laboratory Cheikh Anta Diop University of Dakar Dakar-Fann Senegal Organic Chemistry and Therapeutic Chemistry Laboratory Cheikh Anta Diop University of Dakar Dakar-Fann Senegal Organic Physical Chemistry and Environmental Analysis Laboratory Cheikh Anta Diop University of Dakar Dakar-Fann Senegal Department of Physics Cheikh Anta Diop University of Dakar Dakar-Fann Senegal Amadou Mahtar Mbow University Dakar Nafa VDN Senegal

Electrochromic materials are of great interest for their potential in eyewear protection and data storage devices, as they change colors in response to electrochemical switching. While many of the systems currently used are based on inorganic materials, organic materials such as triazenes have emerged as viable alternatives due to their unique properties, including optical properties. Triazenes are a class of organic compounds with three consecutive nitrogen atoms in an acyclic arrangement, and they have been used for a variety of applications in medicinal and synthetic chemistry. However, the effects of solvents on the UV-visible absorption spectrum of triazenes have not been fully investigated. The neutral molecules of 3,3-diisopropyl-1-phenyltriazene and 1-(4-chlorophenyl)-3-cyclopentyltriazene in acetonitrile, the UV-visible spectra corresponded respectively to HOMO → LUMO transitions with a large maximum absorption at 299.74 nm (4.1364 ev) and 299.57 nm (4.1387 ev) and the most intense oscillator strength (f = 0.6988) and (f = 0.7372). These results suggest that the electronic transitions of the compounds are highly influenced by the nature of the substituents on the triazene unit, as well as the solvent used in the experiment. The redox couple 0.92 and -0.44 V/Ag/AgCl is attributed to the phenyl group. Compound III showed an oxidation and reduction peak respectively -0.27 and -0.8 V/Ag/AgCl attributed to the phenyl molecule. The study concluded that all three compounds were electroactive and exhibited reversible characteristics with oxidizing/reducing couples. This study aims to contribute to research on the optical properties of triazenes compounds and the application of quantum chemical calculation methods for understanding their molecular structures. By investigating the solute-solvent interactions occurring in the solvation shell of the solutes, we aim to gain insights into the effects of solvents on the UV-visible absorption spectrum of triazenes. Our fin

关键词： Triazenes UV-Visible Spectroscopy Electrochemical DFT Calculations

选区激光熔化成形12CrNi2合金钢的显微组织和力学性能

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焊接学报 2021年第8期42卷 8-17,I0001,I0002页

作者：巴培培董志宏张炜彭晓中国科学院金属研究所师昌绪先进材料创新中心沈阳110016 中国科学技术大学合肥230026 南昌航空大学南昌330063

利用选区激光熔化(SLM)技术制备了12CrNi2合金钢.借助金相显微镜、扫描电子显微镜、透射电子显微镜、显微硬度仪、室温拉伸试验等方法研究了激光能量密度对合金钢显微组织和力学性能的影响.结果表明,成形合金钢的宏观组织可分为熔池区... 详细信息

利用选区激光熔化(SLM)技术制备了12CrNi2合金钢.借助金相显微镜、扫描电子显微镜、透射电子显微镜、显微硬度仪、室温拉伸试验等方法研究了激光能量密度对合金钢显微组织和力学性能的影响.结果表明,成形合金钢的宏观组织可分为熔池区与热影响区两部分,微观组织为回火马氏体和少量残余奥氏体.随激光能量密度(ev)增加,成形合金钢的孔洞缺陷逐渐减少,致密度逐渐增加,最高可达到99.87%;同时,熔池体积增大,寿命增加,冷却速度降低,导致回火马氏体板条宽化,热影响区变宽,合金钢的显微硬度和强度降低,塑性增加.在ev为81.34 J/mm3条件下,SLM成形12CrNi2合金钢具有最优强塑性,抗拉强度和屈服强度分别为1098和882 MPa,断后伸长率为20.07%.采用SLM技术成形12CrNi2合金钢可获得比激光熔化沉积(LMD)和铸造成形更佳的综合力学性能.创新点:(1)采用选区激光熔化(SLM)技术制备了12CrNi2合金钢,扩展了激光增材制造(LAM)技术在合金钢领域的应用,可为合金钢的激光成形提供理论和试验参考.(2)改变激光能量密度(ev)可调控成形12CrNi2合金钢的致密度和组织结构,获得不同力学性能;ev为81.34 J/mm^(3)条件下,实现最优强塑性能,成形合金钢的抗拉强度和屈服强度分别为1098和882 MPa,断后伸长率为20.07%.(3)采用SLM技术成形12CrNi2合金钢可获得比激光熔化沉积(LMD)和铸造成形更佳的综合力学性能.

关键词：激光增材制造选区激光熔化合金钢显微组织力学性能

以三聚茚为核的星型电子受体材料的合成、表征与光伏性能

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高等学校化学学报 2019年第7期40卷 1527-1534页

作者：宋美宁郝海景陈卫平顾芳巴信武河北大学化学与环境科学学院

以高度平面共轭的烷基取代三聚茚为中心核,以噻吩基团桥联,在末端连接氰基茚酮作为拉电子基团,设计合成了一类星型受体分子2,2′,2″-{[(5,5,10,10,15,15-己基-10,15-二氢-5H-二茚[1,2-a∶1′,2′-c]芴-2,7,12-三基)三(噻吩-5,2-二基)]... 详细信息

以高度平面共轭的烷基取代三聚茚为中心核,以噻吩基团桥联,在末端连接氰基茚酮作为拉电子基团,设计合成了一类星型受体分子2,2′,2″-{[(5,5,10,10,15,15-己基-10,15-二氢-5H-二茚[1,2-a∶1′,2′-c]芴-2,7,12-三基)三(噻吩-5,2-二基)]三(亚甲基)}三(3-氧杂-2,3-二氢-1H-茚-2,1-二叉)三丙二腈(NFT-C6)和2,2′,2″-{[(5,5,10,10,15,15-癸基-10,15-二氢-5H-二茚[1,2-a∶1′,2′-c]芴-2,7,12-三基)三(噻吩-5,2-二基)]三(亚甲基)}三(3-氧杂-2,3-二氢-1H-茚-2,1-二叉)三丙二腈(NFT-C10).NFT-C6和NFT-C10的最高占据轨道(HOMO)和最低未占轨道(LUMO)分别位于-5.66和-3.75ev.其薄膜在400~700nm范围内具有较大的吸收强度,最大吸收峰分别位于606和586nm.以聚[(2,6-{4,8-二[5-(2-乙基己基)噻吩-2-基]-苯并[1,2-b∶4,5-b′]二噻吩})-{5,5-(1′,3′-二-2-噻吩基-5′,7′-二(2-乙基己基)苯并[1′,2′-c∶4′,5′-c′]二噻吩-4,8-二酮)}](PBDB-T)为给体材料,以NFT-C6或NFT-C10为受体材料制备了太阳能电池器件,器件在300~700nm之间具有较宽的响应光谱,其光电转换效率(PCE)分别达到1.09%和5.23%.原子力显微镜(AFM)结果表明,PBDB-T和NFT-C10共混制备的光伏器件活性层具有合适的相分离尺寸,有利于激子的有效解离,而PBDB-T:NFT-C6器件的活性层相分离尺寸过大,增加了激子复合的几率,使器件的短路电流、填充因子和PCE降低.研究结果表明,基于三聚茚的星型光伏材料具有一定的应用前景.

关键词：非富勒烯受体材料给受体结构三聚茚光伏性能

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油田群项目海上降压变电站布置方案研究

南方能源建设 2021年第2期8卷 99-104页

作者：刘生巴砚中国能源建设集团广东省电力设计研究院有限公司广州510663 中海油研究总院有限责任公司北京100028

[目的]海上油田群电力主要来源于发电机组,存在供电可靠性差、发电效率低和节能减排压力大等问题,通过陆上向海上供电可以很好地解决上述问题。[方法]根据功能定位和工作原理,可将海上降压变电站分为220 kV开关设备区、变压器区、35 kV... 详细信息

[目的]海上油田群电力主要来源于发电机组,存在供电可靠性差、发电效率低和节能减排压力大等问题,通过陆上向海上供电可以很好地解决上述问题。[方法]根据功能定位和工作原理,可将海上降压变电站分为220 kV开关设备区、变压器区、35 kV开关设备区、10 kV开关设备区、无功补偿区和辅助房间六大区域。通过对各区域的研究给出了推荐的布置方案。[结果]给出的布置方案对提高海上降压变电站的可靠性、保障设备检修和维护便利以及最大程度减少平台尺寸具有重要作用。[结论]提出的布置方案能够对油田群项目中的海上降压变电站起到很好的指导作用,具有较高的参考价值。

关键词：油田群海上降压变电站布置方案

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PECVD镀膜机等离子体静电探针诊断

真空科学与技术学报 2009年第3期29卷 332-335页

作者：王庆巴德纯徐香坤徐化冰东北大学机械工程与自动化学院沈阳110004 沈阳理工大学应用技术学院抚顺113122 渤海船舶职业学院动力工程系葫芦岛125000

开发了一个朗缪尔探针等离子体诊断系统,对PECVD真空镀膜机进行了等离子体参数诊断。该镀膜机内的等离子体是电容偶合激发方式的氩等离子体,激发源为射频电源(13.56MHz)。在射频功率为40W到140W的范围内,使用该朗缪尔探针对镀膜机中氩... 详细信息

开发了一个朗缪尔探针等离子体诊断系统,对PECVD真空镀膜机进行了等离子体参数诊断。该镀膜机内的等离子体是电容偶合激发方式的氩等离子体,激发源为射频电源(13.56MHz)。在射频功率为40W到140W的范围内,使用该朗缪尔探针对镀膜机中氩等离子体的参数(等离子体密度和电子温度)进行了诊断分析。结果表明:电子温度在2.7ev和6.4ev之间,并且随着射频功率的增加而降低。而等离子体的密度在0.85×1015m-3到8×1016m-3的范围随着射频电源的增加而增加。

关键词：等离子体增强化学气相沉积镀膜机等离子体诊断朗缪尔探针

掺镁钛酸钡纳米棒的水热合成和光催化性能(英文)

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无机化学学报 2012年第10期28卷 2248-2256页

作者：林雪关庆丰李海波巴春华王丹丹孟繁骏江苏大学材料科学与工程学院镇江212013 吉林师范大学化学学院环境友好材料制备与应用教育部重点实验室四平136000 吉林师范大学物理学院四平136000

用水热法制备掺镁钛酸钡(ba1-xMgxTiO3(x=0,0.10,0.20,0.30,0.40),BMT)纳米粉体。运用X射线衍射仪(XRD)、场发射扫描电子显微镜(FESEM)、透射电子显微镜(TEM)、紫外可见漫反射光谱技术(DRS)等手段对样品进行了表征,并在可见光照射下于... 详细信息

用水热法制备掺镁钛酸钡(ba1-xMgxTiO3(x=0,0.10,0.20,0.30,0.40),BMT)纳米粉体。运用X射线衍射仪(XRD)、场发射扫描电子显微镜(FESEM)、透射电子显微镜(TEM)、紫外可见漫反射光谱技术(DRS)等手段对样品进行了表征,并在可见光照射下于溶液中考察了其光催化降解甲基橙反应活性。结果表明,通过控制氢氧根浓度可以得到不同形貌的纳米粉体。基于不同条件下制备的样品的微结构分析,提出了这些不同形貌的形成机制。制备出的BMT材料的带隙能约为2.61 ev。光催化反应结果表明BMT的光催化活性比掺氮TiO2高得多。OH-浓度为8 mol·L-1时制备的BMT纳米棒光催化效率最高,经可见光照射360 min,浓度为0.01 mmol·L-1甲基橙溶液的降解率可达到93.0%,且循环使用4次后,其光催化活性并没有明显降低,表明BMT是一种稳定有效的可见光催化剂.

关键词：钛酸钡掺镁纳米结构水热合成光催化降解可见光照射