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Clinicopathological characteristics and typing of multilocular cystic renal neoplasm of low malignant potential

World Journal of Clinical Cases 2024年第14期12卷 2332-2341页

作者： Wen-Long Gao Gang Li Dong-sheng Zhu Yuan-jie niu Department of Urology The Second Hospital of Tianjin Medical UniversityTianjin 300211China Department of Pediatric Surgery The First People’s Hospital of LianyungangLianyungang 222000Jiangsu ProvinceChina

BACKGROUND Up until now,no research has been reported on the association between the cli-nical growth rate of multilocular cystic renal neoplasm of low malignant potential(MCRNLMP)and computed tomography(CT)imaging *** study sought to examine the correlation between them,with the objective of distin-guishing unique features of MCRNLMP from renal cysts and exploring effective management *** To investigate optimal management strategies of *** We retrospectively collected and analyzed data from 1520 patients,comprising 1444 with renal cysts and 76 with MCRNLMP,who underwent renal cyst decom-pression,radical nephrectomy,or nephron-sparing surgery for renal cystic disease between January 2013 and December 2021 at our *** of MC-RNLMP utilized the Bosniak classification for imaging and the 2016 World Health Organization criteria for clinical *** Our meticulous exploration has revealed compelling findings on the occurrence of ***,it comprises 1.48%of all cases involving simple renal cysts,5.26%of those with complex renal cysts,and a noteworthy 12.11%of renal tumors coexisting with renal cysts,indicating a statistically significant difference(P=0.001).Moreover,MCRNLMP constituted a significant 22.37%of the patient po-pulation whose cysts demonstrated a rapid growth rate of≥2.0 cm/year,whereas it only represented 0.66%among those with a growth rate below 2.0 cm/*** the 76 MCRNLMP cases studied,none of the nine patients who underwent subsequent nephron-sparing surgery or radical nephrectomy following renal cyst decompression experienced recurrence or *** the remaining 67 patients,who were actively monitored over a 3-year postoperative period,only one showed suspicious recurrence on CT *** MCRNLMP can be tentatively identified and categorized into three types based on CT scanning and growth rate *** treating MCRNLMP,partial nephrectomy is preferred,while rad

关键词： Renal cysts Multilocular cystic renal neoplasm of low malignant potential Computed tomography Diagnosis Treatment

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Broadening of cloud droplet size distributions and warm rain initiation associated with turbulence: an overview

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Atmospheric and Oceanic Science Letters 2018年第2期11卷 123-135页

作者： LU Chun-Song LIU Yan-Gang niu sheng-jie XUE Yu-Qi Key Laboratory of Meteorological Disaster Ministry of Education(KLME)/Joint International Research Laboratory of Climate and Environment Change(ILCEC)/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters(CIC-FEMD)/Key Laboratory for Aerosol–Cloud–Precipitation of China Meteorological Administration Nanjing University of Information Science & Technology Ministry of Education Key Laboratory for Earth System Modeling and Department for Earth System Science Tsinghua University Environmental and Climate Sciences Department Brookhaven National Laboratory

In the study of warm clouds,there are many outstanding *** droplet size distributions are much wider,and warm rain is initiated in a shorter time and with a shallower cloud depth than theoretical *** review summarizes the studies related to the effects of turbulent fluctuations and turbulent entrainment-mixing on the broadening of droplet size distributions and warm rain initiation,including observational,laboratorial,numerical,and theoretical *** attention is paid to studies by Chinese scientists since the 1950s,since most results have been published in *** review reveals that high-resolution observations and simulations,and laboratory experiments,are needed because knowledge of the detailed physical processes involved in the effects of turbulence and entrainment-mixing on cloud microphysics still remains *** effects of turbulent fluctuations and entrainment-mixing processes have been unrealistically separated in most theoretical *** could be unified by further advancement of a systems theory into a predictive *** parameterizations for the effects of fluctuations and entrainment-mixing processes is still in its infancy,and more studies are warranted.

关键词： Cloud droplet sizedistribution warm rain turbulent fluctuation entrainment-mixing systemstheory

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雷州半岛雷暴发生频次变化特征及其与作物布局调整的相关分析

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热带气象学报 2008年第6期24卷 649-657页

作者：张羽牛生杰南京信息工程大学大气物理与大气环境重点实验室江苏南京210044 湛江市气象局广东湛江524001

为了探究雷州半岛作物布局调整对雷暴发生的可能影响,以达到趋利避害,利用相关分析、11种模型拟合和全变量回归分析等数理统计方法进行了分析和研究。结果表明:雷州半岛年雷暴日数总的变化趋势是明显下降,一年四季均有雷暴天气,午后热... 详细信息

为了探究雷州半岛作物布局调整对雷暴发生的可能影响,以达到趋利避害,利用相关分析、11种模型拟合和全变量回归分析等数理统计方法进行了分析和研究。结果表明:雷州半岛年雷暴日数总的变化趋势是明显下降,一年四季均有雷暴天气,午后热雷雨占雷暴天气的大多数,其中5～9月雷暴日数最多,开雷、收雷年际变化差异大。随着稻田的减少,糖蔗、水果种植面积的增加,雷州半岛植被结构得到改善,雷暴天数呈明显减少趋势;蔬菜的种植改变了冬季闲田植被性质,不利于冬初、春末雷暴天气的生成;花生种植面积的调整对雷暴天数变化影响不大。雷州半岛水稻、糖蔗、水果、蔬菜等主要农作物布局调整对雷暴发生可能有明显的影响,主要农作物对雷暴天数可能影响从大到小依次为糖蔗、水稻、蔬菜和水果,农作物布局调整对年开雷、收雷的迟早没有影响。

关键词：雷州半岛雷暴频次作物布局调整

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AIRS/TOVS/TOMS反演的臭氧总量的对比分析

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遥感学报 2008年第1期12卷 54-63页

作者：潘亮牛生杰南京信息工程大学大气物理与大气环境重点实验室江苏南京210044 上海市浦东新区气象局

本文利用2003—2005年的AIRS(Atmospheric Infrared Sounder),TOVS(The TIROS Operational Vertical Sounder)和TOMS(Total ozone mapping spectrometer)卫星资料反演的大气臭氧柱总量分析了全球范围内大气臭氧的分布和变化特征。北半球大气臭氧柱总量有明显的季节变化,在春季达到最大值约为322.25DU,秋季达到最小值约为277.83DU,变化幅度约为45DU,南半球季节变化不明显;大气臭氧柱总量有明显的纬度变化,低纬度地区臭氧柱总量较低,基本维持在250—270DU,高纬度地区臭氧柱总量较高,北半球中高纬地区平均约为294DU,南半球中高纬地区平均约为279DU。几种反演结果的对比分析表明,AIRS的全球(60°N—60°S)平均臭氧柱总量的值比TOVS和TOMS的值高大约3—5DU。其反演值在南极大陆和沙漠地区出现异常。与地基观测资料相比较,AIRS和TOMS反演值与地面站观测值之间具有一致的变化趋势,并存在较好的相关性。

关键词：大气臭氧柱总量卫星遥感 AIRS TOMS TOVS

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南京一次典型雾霾天气气溶胶光学特性

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中国环境科学 2013年第2期33卷 201-208页

作者：王静牛生杰许丹于兴娜南京信息工程大学大气物理学院江苏省大气环境监测与污染控制高技术重点实验室江苏南京210044

利用太阳光度计测得的直射太阳辐射和天空扫描数据，对南京北郊2010年冬季一次雾疆天气过程中气溶胶的光学特性进行了反演研究．研究表明，雾霾影响期间气溶胶光学厚度（AOD）明显增加，在1020，870，675，440nm四个波段上雳霾前AOD为0... 详细信息

利用太阳光度计测得的直射太阳辐射和天空扫描数据，对南京北郊2010年冬季一次雾疆天气过程中气溶胶的光学特性进行了反演研究．研究表明，雾霾影响期间气溶胶光学厚度（AOD）明显增加，在1020，870，675，440nm四个波段上雳霾前AOD为0．16-0．43，雾霾影响期间为0,31-0．84，雾霾后为0．19～0．48；本次雾霾天气的局地气溶胶散射能力增强，单次散射反照率（ssA）由发生前的0．8-0．86增大到发生时的O．89-0.91。而复折射指数的虚部降低，气溶胶的吸收能力明显减弱；雾霾过程伴随了大尺度气溶胶的导入，同时也有人为排放的贡献．其中雾霾影响期间粗粒子模态的体积浓度是发生前的2．5倍，细粒子浓度也比发生前增长了90％．

关键词：太阳光度计雾霾气溶胶光学特性

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春末中国西北沙漠地区沙尘气溶胶物理特性的飞机观测

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高原气象 2005年第4期24卷 604-610页

作者：牛生杰孙照渤南京信息工程大学气象灾害与环境变化江苏省重点实验室江苏南京210044

将APS-3310型激光空气动力学气溶胶粒子谱仪安装在飞机上, 于1999年春末对中国西北沙漠地区上空气溶胶进行探测.结果表明: 沙漠地区上空沙尘气溶胶粒子数浓度一般为1～10个*cm-3, 平均直径为1.6～4.6 μm, 最大直径为13.0～28.0 μm;TS... 详细信息

将APS-3310型激光空气动力学气溶胶粒子谱仪安装在飞机上, 于1999年春末对中国西北沙漠地区上空气溶胶进行探测.结果表明: 沙漠地区上空沙尘气溶胶粒子数浓度一般为1～10个*cm-3, 平均直径为1.6～4.6 μm, 最大直径为13.0～28.0 μm;TSP质量浓度为0.01～0.08 mg*m-3, PM2.5和PM10分别占TSP的3.6%～13.8%和50.3%～88.1%.高空沙尘气溶胶数浓度与下垫面状况密切相关, 沙漠地表上空的粒子数浓度高于植被覆盖较好的地区;当在沙漠地区上空飞行轨迹为上升、平飞、下降时, 沙尘气溶胶粒子谱呈现出由单峰偏态, 双峰, 正态到单峰偏态等形式的演变.

关键词：中国西北沙漠地区飞机观测沙尘气溶胶 PM2.5

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pH-sensitive KHA/CMC-Fe^(3+)@CS hydrogel loading and the drug release properties of riboflavin

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Particuology 2024年第3期86卷 13-23页

作者： jie Song Xi Li Yuhua niu Lijun Chen Zhiqiang Wei Yidan Li Youqian Wang Shaanxi University of Science&Technology Xi'an710021China

To improve drug utilization,reduce the drug administration frequency,increase the release time,and reduce the drug side effects in the human body,we prepared(KHA/CMC-Fe^(3+))@CS hydrogel spheres using green and natural potassium humate(KHA),carboxymethyl cellulose(CMC),and chitosan(CS)as raw materials and Fe3+as a crosslinking agent,and loaded them with riboflavin for drug sustainedrelease study using the drop ball *** tests with FTIR,SEM,TG,and X-ray diffractometer showed that the coordination among KHA,CMC,and Fe^(3+)formed a three-dimensional network structure,where cs was encapsulated on the surface of the hydrogel spheres via noncovalent bonding,resulting in good thermal *** stability,drug loading,swelling,and in vitro release of the(KHA/CMC-Fe^(3+))@CS hydrogel spheres were *** results showed that the hydrogel spheres were significantly pH-sensitive,with 11.16 g/g higher swelling in an alkaline environment(pH=7.4)than that in an acidic environment(pH=1.2).The swelling and drug release process of the hydrogel spheres were analyzed using mathematical models,concluding that the hydrogel swelling follows Schott second-order swelling kinetics,and the drug release mechanism was Fickian delivery mode.

关键词： Potassium humate Hydrogel spheres pH-sensitive Drugsustained-release Drug release model

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Metal-Organic Framework Enabling Poly(Vinylidene Fluoride)-Based Polymer Electrolyte for Dendrite-Free and Long-Lifespan Sodium Metal Batteries

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Energy & Environmental Materials 2024年第1期7卷 68-76页

作者： Yusi Lei Liang Yue Yuruo Qi Yubin niu Shujuan Bao jie Song Maowen Xu Faculty of Materials and Energy Institute for Clean Energy&Advanced MaterialsSouthwest UniversityChongqing 400715China Shandong Zero-One-Four Advanced Materials Co. Ltd.Feicheng 271099China

Sodium dentrite formed by uneven plating/stripping can reduce the utilization of active sodium with poor cyclic stability and,more importantly,cause internal short circuit and lead to thermal runaway and ***,sodium dendrites and their related problems seriously hinder the practical application of sodium metal batteries(SMBs).Herein,a design concept for the incorporation of metal-organic framework(MOF)in polymer matrix(polyvinylidene fluoride-hexafluoropropylene)is practiced to prepare a novel gel polymer electrolyte(PH@MOF polymer-based electrolyte[GPE])and thus to achieve high-performance *** addition of the MOF particles can not only reduce the movement hindrance of polymer chains to promote the transfer of Na^(+)but also anchor anions by virtue of their negative charge to reduce polarization during electrochemical reaction.A stable cycling performance with tiny overpotential for over 800 h at a current density of 5 mA cm^(-2)with areal capacity of 5 mA h cm^(-2)is achieved by symmetric cells based on the resulted GPE while the Na_(3)V_(2)O_(2)(PO_(4))_(2)F@rGO(NVOPF)|PH@MOF|Nacell also displays impressive specific cycling capacity(113.3 mA h g^(-1)at 1 C)and rate capability with considerable capacity retention.

关键词： dendrite-free gel polymer electrolyte metal organic framework sodium batteries

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A single micro-LED manipulation system based on micro-gripper

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Nanotechnology and Precision Engineering 2024年第2期7卷 45-52页

作者： jie Bai Pingjuan niu Erdan Gu Jianming Li Clarence Augustine TH Tee School of Mechanical Engineering Tiangong University School of Electronic and Information Engineering Tiangong University Institute of Photonics University of Strathclyde Tianjin Key Laboratory of Micro Low Gravity Environment Simulation Technology Tianjin Aerospace Electromechanical Equipment Research Institute Department of Electrical and Information Engineering School of Physics and Electrical Information EngineeringZhejiang Normal University

Micro-LEDs(μLEDs) have advantages in terms of brightness, power consumption, and response speed. In addition, they can also be used as micro-sensors implanted in the body via flexible electronic skin. One of the key techniques involved in the fabrication of μLED-based devices is transfer printing. Although numerous methods have been proposed for transfer printing, improving the yield of μLED arrays is still a formidable task. In this paper, we propose a novel method for improving the yield of μLED arrays transferred by the stamping method, using an innovative design of piezoelectrically driven asymmetric micro-gripper. Traditional grippers are too large to manipulate μLEDs, and therefore two micro-sized cantilevers are added at the gripper tips. A μLED manipulation system is constructed based on the micro-gripper together with a three-dimensional positioning system. Experimental results using this system show that it can be used successfully to manipulate μLED arrays.

关键词： Micro-gripper Micro-LED Transfer printing Manipulation

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北方沙尘气溶胶光学厚度和粒子谱的反演

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南京气象学院学报 2006年第6期29卷 775-781页

作者：刘菲牛生杰南京信息工程大学大气物理与大气环境重点实验室江苏南京210044

利用CE-318太阳光度计在内蒙古额济纳旗、东胜、锡林浩特三地观测的2002年6月—2003年5月间的太阳直接辐射数据,应用消光法反演大气气溶胶光学厚度[AOT(λ),Aerosol OpticalThickness]和粒子谱分布,并分析其变化特征。结果表明,该地区... 详细信息

利用CE-318太阳光度计在内蒙古额济纳旗、东胜、锡林浩特三地观测的2002年6月—2003年5月间的太阳直接辐射数据,应用消光法反演大气气溶胶光学厚度[AOT(λ),Aerosol OpticalThickness]和粒子谱分布,并分析其变化特征。结果表明,该地区气溶胶光学厚度具有明显的时空变化:春季最大,冬季最小,AOT(λ=440 nm)平均最大值为0.78,最小值为0.13。3个观测点中,额济纳旗的光学厚度最大,东胜最小。光学厚度的日变化主要有4种形式:1)早晨高傍晚低;2)早晨低傍晚高;3)早晚低中午高;4)变化平缓。这主要与沙尘天气的发生、大气层结稳定度和人类活动等因素有关。气溶胶粒子谱分布基本符合Junge谱,在粒径0.3μm、0.6μm和1.0μm处出现峰值。但是在不同天气条件下粒子谱有很大差异,在沙尘暴天气中,大粒子和巨粒子数有明显的增加,粒子数浓度要比晴天背景大气大了约一个量级。春季气溶胶粒子数浓度最大,夏秋季次之,冬季最小,但相差不超过一个量级。

关键词： CE-318太阳光度计沙尘气溶胶光学厚度谱分布

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