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Studies on the separation treatment of high-level liquid waste by bisamide podand(Ⅰ):Extraction and separation of An(Ⅲ)from Ln(Ⅲ)

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Chinese Chemical Letters 2022年第7期33卷 3439-3443页

作者： Li-Kun Liu Shu-Bao Xie Hong-Bin lv Hu Zhang Guo-An Ye China Institute of Atomic Energy Beijing 102413China

A process for actinide(Ⅲ)and lanthanum(Ⅲ)extraction separation from high-level liquid waste(HLLW)was proposed,with N,N,N’,N’-tetraoctyl diglycolamide(TODGA)as the extractant,tri-n–butyl phosphate(TBP)as the phase modifier and 2,6-bis[1-(propan-1-ol)-1,2,3-triazol-4-yl]pyridine(PyTri-Diol or PTD)as hydrophilic stripping ***‘hot test’was successfully carried out,achieving 99.92%removal of americium-241(^(241)Am)with a separation factor SF(Eu/Am)of 3.8×10^(3)in the actinide(Ⅲ)product *** results show that bisamide podand extractants can effectively realize the extraction and separation of actinide(Ⅲ)and lanthanum(Ⅲ)from Chinese commercial HLLW and thus have a bright practical application potential for the treatment of commercial HLLW.

关键词： Bisamide podand High-level liquid waste Actinides Lanthanides Extraction separation

基于SUMO的智能网联汽车软件在环测试系统开发

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计算机仿真 2024年第6期41卷 192-197,204页

作者：秦琴吕沁元谷文军单体健上海第二工业大学智能制造与控制工程学院上海201209 联合汽车电子有限公司上海201209

针对目前智能网联汽车测试软件在环测试环节尚未成熟的问题,提出一种基于SUMO的智能网联汽车测试环境。上述测试环境依托交通流仿真软件SUMO(Simulation of Urban Mobility)平台,使用MATLAB/Simulink对车辆动力学进行仿真;使用罗技方向... 详细信息

针对目前智能网联汽车测试软件在环测试环节尚未成熟的问题,提出一种基于SUMO的智能网联汽车测试环境。上述测试环境依托交通流仿真软件SUMO(Simulation of Urban Mobility)平台,使用MATLAB/Simulink对车辆动力学进行仿真;使用罗技方向盘与Simulink采集驾驶员操作信息;在Unity3D中与SUMO同步环境场景并实现3D视觉效果。使用虚拟驾驶设备和联合汽车电子公司成熟的智能网联功能对环境进行了验证,结果表明,新开发的测试系统建立的虚拟车辆可以遵循驾驶员驾驶意图,同时能够给通用智能网联汽车软件提供软件在环测试环境,进行模块化测试,测试结果准确,试验数据可靠,整套系统反应灵敏、操作安全、沉浸感较强。

关键词：智能网联汽车软件在环虚拟仿真系统

Microwave-assisted sol-gel synthesis of hydroxyapatite nanoparticles

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北京化工大学学报（自然科学版） 2019年第3期46卷 7-15页

作者： CHEN ChunYu DING Xuan LI ShouChuan SUN BaoChang lv ShanShan State Key Laboratory of Organic-Inorganic Composite Materials College of Chemical EngineeringBeijing University of Chemical Technology State Key Laboratory of Analytical Chemistry for Life Science Nanjing University

A rapid sol-gel method for preparing hydroxyapatite nanoparticles(nHAP) has been developed. Three different sets of experimental conditions, in terms of solvents(water and ethanol), synthesis temperatures(25, 40 and 60℃), and microwave irradiation(on and off) were explored. Crystal phase composition, functional groups and morphology of the products were characterized by thermogravimetric analysis(TGA), X-ray diffraction(XRD), Fourier transform infrared spectroscopy(FT-IR), scanning electron microscopy(SEM) and transmission electron microscopy(TEM). The solvent and temperature were optimized based on product properties. Most importantly, the microwave-assisted method(with little to no ageing necessary) was much faster than the conventional methods(with slow ageing processes needing from hours to days), while affording pure nHAP with virtually identical morphological and structural properties. This study represents a practical application of the powerful microwave technique in synthesis of nHAP, offering guidance on the selection of optimum experiment conditions.

关键词： hydroxyapatite sol-gel temperature microwave

Characterization of longshore currents in southern East China Sea during summer and autumn

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Acta Oceanologica Sinica 2020年第3期39卷 1-11页

作者： Peng Li Benwei Shi yangang Li Sijian Wang Xin lv Yaping Wang Qing Tian Forecast Center for East China Sea State Oceanic AdministrationShanghai 200136China State Key Laboratory of Estuarine and Coastal Research East China Normal UniversityShanghai 200062China School of Marine Sciences Nanjing University of Information Science and TechnologyNanjing 210044China

Current characteristics and vertical variations during summer and autumn in the southern East China Sea were investigated by measuring current profile, tide, wind, and wave data for 90 d from July 28 to October 25, 2015. Our results are:(1) The current was mainly a(clockwise) rotating flow, displaying reciprocating flow characteristics,and vertically the current directions were the same throughout the vertical profile.(2) The horizontal current speed was strongest during August(summer) with an average speed of 51.8 cm/s. The average current speeds during spring tides were highest in August and weakest in September, with speeds of 59.9 and 42.8 cm/s,respectively.(3) Considerable differences exist in average current speeds in different layers and seasons. The highest average current speeds were found in the middle–upper layers in August and in the middle–lower layers in September and October.(4) The residual current speed was highest in August, when the speed was 12.5–47.1 cm/s,whereas the vertical average current speed was 34.3 cm/s. The depth-averaged residual current speeds in September and October were only 50% of that in August, and the residual current direction gradually rotated in a counter-clockwise direction from the lower to surface layers.(5) Typhoon waves had a significant influence on the currents, and even affected the middle and lower water layers at depths of >70.0 m. Our results showed that the currents are controlled by the dynamic interplay of the Taiwan Warm Current, incursion of the Kuroshio Current onto the continental shelf, and monsoonal changes.

关键词： northeast Taiwan ocean current summer and autumn typhoon

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水利枢纽上游回水段非点源污染控制策略研究

海河水利 2024年第6期 24-28页

作者：王文华孙秋慧吕红波中水北方勘测设计研究有限责任公司天津300222

水利枢纽工程上游河段形成的回水段水体流速降低,自净能力下降,易发生富营养化。本研究以六安市淠河干流城南节制闸水利枢纽上游回水段为研究对象,调查分析了流域范围内污染来源和污染负荷,提出了生态清淤、水生植物恢复、浮动湿地兴建... 详细信息

水利枢纽工程上游河段形成的回水段水体流速降低,自净能力下降,易发生富营养化。本研究以六安市淠河干流城南节制闸水利枢纽上游回水段为研究对象,调查分析了流域范围内污染来源和污染负荷,提出了生态清淤、水生植物恢复、浮动湿地兴建、EHBR等支沟污染控制措施,针对雨水径流随排水涵洞直接进入河道的特点,利用河道滩地建设生态浅塘,拦蓄、截留和净化径流污染,可为水利枢纽上游回水段河流水体富营养化防控提供参考。

关键词：水利枢纽非点源污染雨水排口支沟

CBCT评价CGF+生物骨修复材料促进颌骨囊肿术后骨缺损修复效果评价分析

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中国医疗器械信息 2024年第14期30卷 1-3,35页

作者：吕舒颖阮召伟焦雪峰宁德师范学院附属宁德市医院福建宁德352100

目的:探讨锥形束CT(Cone Beam Computed Tomography,CBCT)评价浓缩生长因子(Concentrate Growth Factors,CGF)+生物骨修复材料促进颌骨囊肿术后骨缺损修复效果。方法:选取2022年1月~2023年10月本院收治的80例颌骨囊肿术后骨缺损患者作... 详细信息

目的:探讨锥形束CT(Cone Beam Computed Tomography,CBCT)评价浓缩生长因子(Concentrate Growth Factors,CGF)+生物骨修复材料促进颌骨囊肿术后骨缺损修复效果。方法:选取2022年1月~2023年10月本院收治的80例颌骨囊肿术后骨缺损患者作为研究对象,根据修复方案不同分成对照组40例、观察组40例。对照组给予CGF修复,观察组给予CGF+生物骨修复(Bio-Oss骨粉)。比较两组骨密度灰度值、疼痛程度以及肿胀程度。结果:骨密度灰度值(Hounsfield Unit,HU)水平组间、时间及交互对比有意义(P<0.05)。两组HU值术后1月增高、术后3月下降,且观察组HU值均低于对照组(P<0.05)。视觉模拟评分法(Visual Analogue Scale,VAS)评分水平组间、时间及交互对比有意义(P<0.05)。两组VAS评分术后2d出现上升、术后5d降低,观察组均低于对照组(P<0.05)。观察组术后2d肿胀程度轻于对照组(P<0.05)。结论:在促进颌骨囊肿术后骨缺损修复中,经过CBCT评价,CGF联合生物骨修复材料与单独CGF相比,HU值更高,术后疼痛以及肿胀程度均降低,可以促进骨愈合、提高成骨质量、加快恢复颌骨形态。

关键词：颌骨囊肿锥形束CT 骨密度

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BIM在高校建筑运营维护中的应用探讨

建筑经济 2018年第6期39卷 92-95页

作者：林葎清华大学基建规划处北京100084

高校建筑在运营维护方面具有功能综合化、管理智能化、资源共享化的特征,需要BIM技术在运营维护方向更加定制化以满足高校建筑应用特点。通过阐述高校建筑的运营维护特点并针对其特点提出BIM运营维护技术需求。同时探讨满足高校建筑运... 详细信息

高校建筑在运营维护方面具有功能综合化、管理智能化、资源共享化的特征,需要BIM技术在运营维护方向更加定制化以满足高校建筑应用特点。通过阐述高校建筑的运营维护特点并针对其特点提出BIM运营维护技术需求。同时探讨满足高校建筑运营维护需求的BIM运营维护模型,从而为建立共享统一的高校建筑运营维护系统奠定基础。

关键词：校园建筑 BIM 运营维护智能化管理

Role of CAST-Drp1 Pathway in Retinal Neuron-Regulated Necrosis in Experimental Glaucoma

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Current Medical Science 2023年第1期43卷 166-172页

作者： Su-mei LIU lv-shuang LIAO Ju-fang HUANG Shu-chao WANG Department of Anesthesiology The Second Xiangya Hospital of Central South UniversityChangsha410011China Center for Medical Research The Second Xiangya Hospital of Central South UniversityChangsha410011China Department of Anatomy and Neurobiology School of Basic Medical SciencesCentral South UniversityChangsha410013China School of Physical Education Hunan Institute of Science and TechnologyYueyang430600China

Objective Numerous studies have indicated that excitatory amino acid toxicity,such as glutamate toxicity,is involved in *** addition,excessive glutamate can lead to an intracellular calcium overload,resulting in regulated *** previous studies have found that the calpastatin(CAST)-calpain pathway plays an important role in retinal neuron-regulated necrosis after glutamate *** inhibition of the calpain pathway can decrease regulated necrosis,necrotic cells *** has been suggested that there are other molecules that participate in retinal neuron-regulated *** is an important regulator of dynamin-related protein 1(Drp1)-mediated mitochondrial ***,the aim of this study was to determine whether the CAST-Drp1 pathway may be an underlying signaling axis in neuron-regulated *** Using cultured retinal neurons and in an in-vivo glaucoma model induced by glutamate overload,members of the CAST-Drp1 pathway were assessed by immunofluorescence,Western blotting,Phos-tagTM SDS-PAGE,and co-immunoprecipitation ***,the black and white box test was performed on the *** We found that more retinal neuron-regulated necrosis and Drp1 activation as well as lower CAST levels were present in the glutamate-induced glaucoma *** with glutamate-induced glaucoma exhibited impaired visual *** also observed retinal neuron-regulated necrosis and Drp1 activity decreased,and impaired vision recovered after CAST active peptide application,indicating that the CAST-Drp1 pathway plays a critical role in retinal neuron-regulated necrosis and visual *** The results of this study indicate that the CAST-Drp1 pathway protects against retinal neuron-regulated necrosis,which may expand the therapeutic targets for the treatment of neurodegenerative disorders involving dysfunction of glutamate metabolism,such as glaucoma.

关键词： retinal ganglion cells glaucoma calpastatin dynamin-related protein l central nervous system regulated necrosis glutamate

三维网状有机-无机杂化型DABCO锰配合物的合成及性能研究

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化工新型材料 2024年第10期52卷 139-145页

作者：吕美霞胡宏志刘洋夏合娜孜·吐尔逊江刘尊奇新疆农业大学化学化工学院乌鲁木齐830052 聚合物新型成型装备国家工程研究中心新疆分中心乌鲁木齐830052 新疆农业化学与生物材料重点实验室乌鲁木齐830052

室温下以1,4-二氮杂二环[2.2.2]辛烷-甲基氯化物[DABCO-CH_(2)Cl]^(+)·Cl^(-)、MnCl_(2)·4H_(2)O和氢溴酸为原料,在甲醇和水的混合溶液中以缓慢蒸发方式,得到一种氢键三维网状结构有机-无机杂化型锰配合物[HDABCO-CH_(2)Cl]·MnBr_(4)... 详细信息

室温下以1,4-二氮杂二环[2.2.2]辛烷-甲基氯化物[DABCO-CH_(2)Cl]^(+)·Cl^(-)、MnCl_(2)·4H_(2)O和氢溴酸为原料,在甲醇和水的混合溶液中以缓慢蒸发方式,得到一种氢键三维网状结构有机-无机杂化型锰配合物[HDABCO-CH_(2)Cl]·MnBr_(4)(1),通过单晶X射线衍射仪、傅里叶变换红外光谱仪、粉末X射线衍射仪、热重分析仪、介电性能测试仪对晶体材料的结构、热性能和电性能进行分析和测试。单晶结构分析表明:合成的化合物属于单斜晶系,空间群为P21/n,其中[HDABCO-CH_(2)Cl]^(2+)阳离子和[MnBr_(4)]^(2-)四面体阴离子在晶体内部通过氢键相互作用形成三维网状结构;随着温度的改变,[HDABCO-CH_(2)Cl]^(2+)阳离子发生扭动、[MnBr_(4)]2-四面体阴离子发生伸缩变形,引起晶体在240~270K范围内产生显著的可逆介电异常现象。

关键词： 1,4-二氮杂二环[2.2.2]辛烷氢键三维网状结构锰配合物介电异常

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