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Multi-aspect analysis of ureteral access sheath usage in retrograde intrarenal surgery: a RIRSearch group study

asian Journal of Urology 2024年第1期11卷 80-85页

作者： Oktay Özman hacı M.akgül Cem Başataç Önder Çınar Eyüp B.Sancak Cenk M.Yazıcı Bülent Önal Haluk akpınar Gaziosmanpasa Training and Research Hospital Urology ClinicİstanbulTurkey TekirdağNamık Kemal University School of MedicineDepartment of UrologyTekirdağTurkey Group Florence Nightingale Hospitals Department of UrologyİstanbulTurkey Zonguldak Bulent Ecevit University School of MedicineDepartment of UrologyZonguldakTurkey Çanakkale Onsekiz Mart University School of MedicineDepartment of UrologyÇanakkaleTurkey İstanbul University-Cerrahpaşa Cerrahpaşa Medical FacultyDepartment of UrologyİstanbulTurkey

Objective:To evaluate the effect of ureteral access sheath(UaS)use and calibration change on stone-free rate and complications of retrograde intrarenal surgery(RIRS).Methods:Data from 568 patients undergoing RIRS for kidney or upper ureteral stones were retrospectively ***,patients were compared after 1:1 propensity score matching,according to UaS usage during RIRS(UaS used[+]87 and UaS non-used[−]87 patients).Then all UaS+patients(n=481)were subdivided according to UaS calibration:9.5-11.5 Fr,10-12 Fr,11-13 Fr,and 13-15 *** outcomes of the study were the success and complications of ***:Stone-free rate of UaS+patients(86.2%)was significantly higher than UaS−patients(70.1%)after propensity score matching(p=0.01).Stone-free rate increased with higher caliber UaS(9.5-11.5 Fr:66.7%;10-12 Fr:87.0%;11-13 Fr:90.6%;13-15 Fr:100%;pative complications of UaS+patients(11.5%)were significantly lower than UaS−patients(27.6%)(p=0.01).Complications(8.7%)with 9.5-11.5 Fr UaS was lower than thicker UaS(17.2%)but was not statistically significant(p=0.09).UaS usage was an independent factor predicting stone-free status or peri-and post-operative complications(odds ratio[OR]3.654,95%confidence interval[CI]1.314-10.162;OR 4.443,95%CI 1.350-14.552;OR 4.107,95%CI 1.366-12.344,respectively).Conclusion:Use of UaS in RIRS may increase stone-free rates,which also increase with higher caliber *** usage may reduce complications;however,complications seemingly increase with higher UaS calibration.

关键词： Stone Retrograde intrarenal surgery Ureteral access sheath Urolithiasis Kidney

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Decision making on financial investment in Turkey by using aRDL long-term coefficients and aHP

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Financial Innovation 2020年第1期6卷 530-551页

作者： Serkan atmaca hacıahmet Karadaş Department of Mathematics Faculty of ScienceSivas Cumhuriyet UniversitySivasTurkey Department of Economics Faculty of Economics and Administrative SciencesSivas Cumhuriyet University SivasTurkey

Mathematical modeling methods are frequently used for solving everyday *** making,one such method,can be used in every aspect of life for different scales such as micro(households),medium(companies),and macro(states)*** to the large number of parameters affecting decision,it is possible to make mistakes in the selection of the appropriate investment instrument with classical methods;hence,scarce resources may be wasted,and sometimes it may even be impossible to make a *** study seeks to answer the question“Which financial investment instrument should be selected under the current conditions?”using decision making *** affecting gold,USD,and EURO,which are selected as the financial investment instruments in Turkey,are examined using the autoregressive distributed lag(aRDL)bound *** selected variables are monthly and belong to the January 2009 to May 2018 *** aRDL results show that the selected financial investment instruments are affected by most of the factors *** using the coefficients obtained from the aRDL model,the analytic hierarchy process(aHP)model was *** to the results of the model,the EURO was determined as the most suitable financial investment for ahmet and others with the same preferences.

关键词： Decision making Financial investment instruments aRDL aHP

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Harvest optimization for sustainable agriculture:The case of tea harvest scheduling

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artificial Intelligence in agriculture 2023年第4期10卷 35-45页

作者： Bedirhan Sarımehmet Mehmet Pınarbaşı hacıMehmet alakaş Tamer Eren Department of Industrial Engineering Faculty of Architecture and EngineeringKırıkkale UniversityKırıkkaleTurkey

To ensure sustainability in agriculture,many optimization problems need to be *** important one of them is harvest scheduling *** this study,the harvest scheduling problem for the tea is *** tea harvest problem includes the creating a harvest schedule by considering the farmers'quotas under the purchase location and factory *** harvesting is carried out in cooperation with the *** man-agement is interested in using its ***,the factory capacity,purchase location capacities and number of expeditions should be considered during the harvesting *** the farmer's side is examined,it is seen that the real professions of farmers are *** harvest days,farmers often cannot attend to their primary *** the harvest day preferences of farmers in creating the harvest schedule are of great importance for sustainability in *** different mathematical models are proposed to solve this *** first model minimizes the number of weekly expeditions of factory vehicles within the factor and purchase location capacity *** second model minimizes the number of expeditions and aims to comply with the preferences of the farmers as much as possible.a sample application was performed in a region with 12 purchase locations,988 farmers,and 3392 decares of tea *** results show that the compli-ance rate of farmers to harvesting preferences could be increased from 52%to 97%,and this situation did not affect the number of expeditions of the *** result shows that considering the farmers'preferences on the harvest day will have no negative impact on the *** the contrary,it was concluded that this situation increases sustainability and encouragement in ***,the results show that models are effective for solving the problem.

关键词： Goal programming Harvest optimization Harvest scheduling Sustainable agriculture Tea

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Myxomycetes from Papua New Guinea and New Caledonia

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Fungal Diversity 2013年第2期59卷 33-44页

作者： Henrik Kylin David W.Mitchell El-hacène Seraoui Bart Buyck Department of Water and Environmental Studies Linköping UniversitySE-58183 LinköpingSweden Walton Cottage Upper HartfieldEast SussexTN74ANEnglandUK 11 rue Louis Armand74100 AmbillyFrance Department of Systematics and Evolution CP39 UMR7205Muséum national d’Histoire naturelle75005 ParisFrance

We present a compilation of all myxomycetes recorded from Papua New Guinea(PNG)and New Caledonia(NC).Specimens were collected during field trips in September 1983–January 1984 to both territories and in august 1991,October 2007,and april 2009 to *** and dung samples for moist chamber cultures were collected during the field trips in September 1983–January 1984(PNG and NC)and in august 1991 and October 2007(NC).In addition,information from previous publications and unpublished specimens in the herbarium at the Plant Protection Instituted in Port Moresby,PNG,are included.a total of 180 species are *** the 63 species from PNG 51 are new to the country,and 123 of the 149 species from NC are new to the territory.

关键词： Mycetozoa Myxomycota amoebozoa Slime moulds Southwest Pacific

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Neutronic study on the effect of first wall material thickness on tritium production and material damage in a fusion reactor

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Nuclear Science and Techniques 2022年第4期33卷 33-50页

作者： hacıMehmet S¸ahin Güven Tunc¸ alper Karakoc¸ Melood Mohamad Omar Department of Energy Systems Engineering Technology FacultyKarabuk UniversityKarabukTurkey Department of Energy Systems Engineering Technology FacultyGazi UniversityAnkaraTurkey Department of Energy Systems Engineering Institute of Graduate ProgramsKarabuk UniversityKarabukTurkey

In this study,the effects of changing first wall materials and their thicknesses on a reactor were investigated to determine the displacement per atom(DPa)and gas production(helium and hydrogen)in the first wall,as well as the tritium breeding ratio(TBR)in the coolant and tritium breeding ***,the modeling of the magnetic fusion reactor was determined based on the blanket parameters of the International Thermonuclear Experimental Reactor(ITER).Stainless steel(SS 316 LNIG),Oxide Dispersion Strengthened Steel alloy(PM2000 ODS),and China low-activation martensitic steel(CLaM)were used as the first wall(FW)*** family molten salt materials(FLiBe,FLiNaBe,FLiPb)and lithium oxide(LiO_(2))were considered the coolant and tritium production material in the blanket,*** transport calculations were performed using the wellknown 3D code MCNP5 using the continuous-energy Monte Carlo *** built-in continuous energy nuclear and atomic data libraries along with the Evaluated Nuclear Data file(ENDF)system(ENDF/B-V and ENDF/B-VI)were ***,the activity cross-section data library CLaW-IV was used to evaluate both the DPa values and gas production of the first wall(FW)*** interface computer program written in the FORTRaN 90 language to evaluate the MCNP5 outputs was developed for the fusion reactor *** results indicated that the best TBR value was obtained for the use of the FLiPb coolant,whereas depending on the thickness,the first wall replacement period in terms of radiation damage to all materials was between 6 and 11 years.

关键词： ITER First wall material Material damage Tritium breeding ratio Fluorides family molten salt materials

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Total estimated effective doses from radiologic imaging modalities of children with cancer:a single center experience

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World Journal of Pediatrics 2017年第3期13卷 242-247页

作者： Derya Ozyorük Suna Emir hacιahmet Demir Gülsah Bayram Kabacam Bahattin Tunc Division of Pediatric Oncology Ankara Children's Hematology and Oncology Education and Research HospitalAnkaraTurkey Division of Radiology Ankara Children's Hematology and Oncology Education and Research HospitalAnkaraTurkey

Background:Recently,awareness of the cumulative radiation exposure for pediatric oncology patients has been increasing,together with increased survival rates and longer life *** aim of our study was to quantify the amount of ionising radiation from imaging modalities of pediatric oncology ***:Eighty-eight patients who were diagnosed with childhood cancer and followed up for 5 years between 2004-2014 in our center were included in the ***' medical files were reviewed retrospectively for imaging history in the first 5 years after *** estimated effective doses from radiologic imaging modalities were ***,the basic demographic data,histologic type,stage,and outcomes of disease were collected for all ***:The individual total estimated effective doses ranged from 8.73 to 167 mSv,with a median of 62.92 *** tomography was the greatest contributor of total effective *** doses ranged 21.45-113.20 mSv (median:62.92 mSv) in Hodgkin lymphoma,12.53-167.10 mSv (median:52 mSv) in non-Hodgkin lymphoma,4.13-172.98 mSv (median:52 mSv) in neuroblastoma,31-149.89 mSv (median:63.10 mSv) in Wilms' tumor,11.50-73.72 mSv (median:36.90 mSv) in germ cell tumor,26.46-125.86 mSv (median:80.90 mSv) in other solid tumor and 0.02-13.31 mSv (5.25 mSv) in brain tumor ***-two children (25%) died with progressive disease during the 5-year follow-up ***:Similar to previous studies,the total estimated effective doses in children with cancer have been found various according to diagnosis,stage and clinical *** clarify the harmfull effects of radiation burden,prospective studies should be conducted in children with cancer.

关键词： children effective dose ionizing radiation

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上下导气系统对生物反应器压实垃圾中渗滤液和填埋气迁移的影响研究

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环境科学学报 2017年第6期37卷 2203-2209页

作者：杨帆 Jae hac Ko 徐期勇北京大学深圳研究生院环境与能源学院聚硅酸盐复合环保材料工程实验室深圳518055

建立了2组实验室模拟填埋场生物反应器,利用上层和下层同时导排填埋气的方法,研究了填埋气和渗滤液在垃圾体中的产生和迁移情况.并在考虑渗滤液回灌的情况下,设置了C1(渗滤液回灌前加压)、C2(渗滤液回灌后加压)2组对照实验.结果表明,C1... 详细信息

建立了2组实验室模拟填埋场生物反应器,利用上层和下层同时导排填埋气的方法,研究了填埋气和渗滤液在垃圾体中的产生和迁移情况.并在考虑渗滤液回灌的情况下,设置了C1(渗滤液回灌前加压)、C2(渗滤液回灌后加压)2组对照实验.结果表明,C1在加压后出现短暂的水位雍高现象并在第33 d后消失,而C2一直未出现水位雍高现象,上下同时导气系统能促进渗滤液和填埋气排出,#有效缓解和消除水位雍高.压力促使C1、C2的填埋气由往上迁移转变为往下迁移,C1经历了10 d的填埋气向下迁移准备期,而C2在回灌后填埋气直接往下迁移,回灌会促进孔隙通道打开,有利于气液向下排出.

关键词：城市生活垃圾上下导气填埋气渗滤液迁移

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市政污泥热解过程颗粒物中重金属分布

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中国环境科学 2018年第10期38卷 3781-3787页

作者：王经臣杨璐宁 Jae hac Ko 徐期勇北京大学深圳研究生院环境与能源学院广东深圳518055

以深圳市某污水处理厂的污泥为原料,研究了污泥热解过程产生的颗粒物及其中8种重金属的分布规律.结果表明,颗粒物的生成速率分别在400～600℃和1000℃保温30min的两个区间内达到峰值.8种重金属的热挥发性由大到小依次为Cd>Zn>as>Pb>Mn>N... 详细信息

以深圳市某污水处理厂的污泥为原料,研究了污泥热解过程产生的颗粒物及其中8种重金属的分布规律.结果表明,颗粒物的生成速率分别在400～600℃和1000℃保温30min的两个区间内达到峰值.8种重金属的热挥发性由大到小依次为Cd>Zn>as>Pb>Mn>Ni>Cu>Cr,而其在颗粒物中富集能力大小顺序为Pb>as>Mn>Zn>Cd>Ni>Cr>Cu.颗粒物重金属在热解气中的体积浓度随热解过程呈上升趋势,Zn和Cd则在升温阶段(1000℃以前)达到峰值后开始降低.研究表明,污泥热解颗粒物富集的重金属超标,因而污泥热解尾气颗粒物的去除装置十分必要.

关键词：污泥热解颗粒物重金属

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土聚水泥技术在飞灰资源化中的应用

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硅酸盐通报 2014年第3期33卷 574-582页

作者：尚宁 Ko Jae hac 徐期勇北京大学深圳研究生院环境与能源学院聚硅酸盐复合环保材料工程实验室深圳518055

固体废物焚烧处理技术在我国日益得到推广应用,这导致我国垃圾焚烧飞灰产量巨大。垃圾焚烧飞灰中含有浸出毒性较高的重金属,属危险废弃物。但飞灰中含有丰富的活性组分,可以作为合成材料的原料而加以综合利用。飞灰基土聚水泥作为一种... 详细信息

固体废物焚烧处理技术在我国日益得到推广应用,这导致我国垃圾焚烧飞灰产量巨大。垃圾焚烧飞灰中含有浸出毒性较高的重金属,属危险废弃物。但飞灰中含有丰富的活性组分,可以作为合成材料的原料而加以综合利用。飞灰基土聚水泥作为一种新型碱激活胶凝材料,可以大大降低飞灰中重金属的浸出毒性,同时具有较高的抗压强度。本文在介绍土聚水泥聚合机理的基础上,从飞灰预处理、外加硅铝原料的添加、碱激发剂浓度和掺量、水灰比、骨料、养护条件等方面阐述了对飞灰基土聚水泥强度和重金属浸出毒性的影响,最后对飞灰基土聚水泥重金属浸出毒性方面研究提出了建议。

关键词：飞灰土聚水泥聚合机理浸出毒性抗压强度

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压力对填埋垃圾产甲烷的影响研究

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环境科学学报 2015年第11期35卷 3755-3761页

作者：李明英杨帆 Jae hac Ko 徐期勇北京大学深圳研究生院环境与能源学院聚硅酸盐复合环保材料工程实验室深圳518055

压实作用被认为是影响填埋垃圾降解过程的一个重要因素,实验通过自制的压缩降解模拟填埋反应器装置,研究了阶梯增加式压力21k Pa→42 k Pa→84 k Pa(分别在垃圾填埋后的第75、103和131 d时施加)对填埋垃圾产甲烷这一资源化重要阶段的影... 详细信息

压实作用被认为是影响填埋垃圾降解过程的一个重要因素,实验通过自制的压缩降解模拟填埋反应器装置,研究了阶梯增加式压力21k Pa→42 k Pa→84 k Pa(分别在垃圾填埋后的第75、103和131 d时施加)对填埋垃圾产甲烷这一资源化重要阶段的影响,包括产气特性、渗滤液性质及固体沉降等的变化.21 k Pa和42 k Pa分别恒定了4周,垃圾最后在84 k Pa恒定压力下降解,实验总共持续了170 d.结果表明,在初始21k Pa的压力作用下,由于接种物跟垃圾接触面积的增大,甲烷日产量从第75 d的1.85 L·d-1增加到了第76 d的2.95 L·d-1,产甲烷速率提高了59.82%,42 k Pa和84 k Pa时均有所增加,但增加程度均不明显.压力还使砾石层上部积留了一定水位高度的渗滤液,渗滤液的COD和含氮量在压力作用下都有了暂时的升高.压实作用还令垃圾体产生了较大的沉降,但压力进一步增大并没有使垃圾继续发生较多的沉降.实验结果有助于更好地了解压力对填埋垃圾降解过程的影响.

关键词：压力生活垃圾(MSW) 填埋产甲烷阶段

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