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Sensitivity of Estimated Total Canopy SIF Emission to Remotely Sensed LAI and BRDF Products

Journal of Remote Sensing 2021年第1期2021卷 145-162页

作者： Zhaoying Zhang Yongguang Zhang Jing M.Chen Weimin ju Mirco Migliavacca Tarek S.El-Madany International Institute for Earth System Sciences Nanjing UniversityNanjingJiangsuChina Yuxiu Postdoctoral Institute Nanjing UniversityNanjingJiangsuChina Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology Key Laboratory for Land Satellite Remote Sensing Applications of Ministry of Natural ResourcesSchool of Geography and Ocean ScienceNanjing UniversityNanjingJiangsuChina Huangshan Park Ecosystem Observation and Research Station Ministry of EducationChina Department of Geography and Planning University of TorontoTorontoOntarioCanada Max Planck Institute for Biogeochemistry Department Biogeochemical Integration Germany

Remote sensing of solar-induced chlorophyll fluorescence(SIF)provides new possibilities to estimate terrestrial gross primary production(GPP).To mitigate the angular and canopy structural effects on original SIF observed by sensors(SIF_(obs)),it is recommended to derive total canopy SIF _(emission)(SIF_(total))of leaves within a canopy using canopy interception(i0)and reflectance of vegetation(R_(V)).However,the effects of the uncertainties in i_(0) and R_(V) on the estimation of SIFtotal have not been well ***,we evaluated such effects on the estimation of GPP using the Soil-Canopy-Observation of Photosynthesis and the Energy balance(SCOPE)*** SCOPE simulations showed that the R^(2) between GPP and SIF_(total) was clearly higher than that between GPP and SIFobs and the differences in R^(2)(ΔR^(2))tend to decrease with the increasing levels of uncertainties in i_(0) and *** resultantΔR^(2) decreased to zero when the uncertainty level in i0 and RV was~30%for red band SIF(RSIF,683 nm)and~20%for far-red band SIF(FRSIF,740 nm).In addition,as compared to the TROPOspheric Monitoring Instrument(TROPOMI)SIFobs at both red and far-red bands,SIF_(total) derived using any combination of i_(0)(from MCD15,VNP15,and CGLS LAI products)and RV(from MCD34,MCD19,and VNP43 BRDF products)showed comparable improvements in estimating *** this study,we suggest a way to advance our understanding in the estimation of a more physiological relevant SIF datasets(SIF_(total))using current satellite products.

关键词： BRDF estimation SCOPE

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Robust superhydrophobic polyurethane sponge functionalized with perfluorinated graphene oxide for efficient immiscible oil/water mixture, stable emulsion separation and crude oil dehydration

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Science China(Technological Sciences) 2019年第9期62卷 1585-1595页

作者： CAO Ning GUO JingYu BOUKHERROUB Rabah SHAO QingGuo ZANG XiaoBei LI Jin LIN XueQiang ju Hong LIU EnYang ZHOU ChaoFan LI HuiPing Key Laboratory of Unconventional Oil & Gas Development Ministry of EducationChina University of Petroleum (East China)Qingdao 266580China School of Materials Science and Engineering China University of Petroleum (East China)Qingdao 266580China Univ. Lille CNRSCentrale LilleISENUniv. ValenciennesUMR 8520IEMNLilleFrance School of Materials Science and Engineering Shandong University of Science and TechnologyQingdao 266590China

In recent years, graphene oxide(GO), prepared by the modified Hummers’ method, and its derivatives have become a focus of research owing to their outstanding physical and chemical properties and low cost. Drawing inspiration from the mussel protein,a facile and environmentally-friendly method was employed to fabricate superhydrophobic/superoleophilic reduced graphene oxide(rGO) derivative. The preparation comprises two steps: coating GO nanosheets with polydopamine(PDA) and subsequent reaction with 1H,1H,2H,2H-perfluorodecanethiol. Due to the excellent adhesive ability of PDA, the resulting f PDA modified rGO nanosheets(rGO-f PDA) were firmly immobilized onto polyurethane(PU) sponge skeleton by a simple drop-coating method. The as-prepared rGO-f PDA functionalized sponge exhibited superhydrophobic behavior with a water contact angle of 162°±2°, high organic adsorption capacity, recyclability and stable oil/water separation behavior under different acidic/alkaline conditions. Due to its facile fabrication technique and outstanding properties, the superhydrophobic-superoleophilic PU-rGOf PDA sponge holds great promise as an oil adsorbent for cleaning up large-scale pollution of oil and organic solvents, and dehydrating crude oil.

关键词： graphene oxide superhydrophobic sponge adsorption oil/water separation emulsion

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Fruits extracts of Hovenia dulcis *** lipopolysaccharide—stimulated inflammatory responses through nuclear factor—kappaB pathway in Raw 264.7 cells

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Asian Pacific Journal of Tropical Medicine 2016年第4期9卷 349-355页

作者： ju-Yeon Park Jin-Young Moon Sun-Dong Park Won-Hwan Park Hyuck Kim Jai-Eun Kim Department of Acupoint College of Korean Medicine.Dongguk University Department of Prescription College of Korean MedicineDongguk University Department of Diagnostics College of Korean Medicine.Dongguk University Department of Pathology College of Korean Medicine.Dongguk University

Objective:To investigate the anti-inflammatory effects and the action mechanism of the fruits of Horenia dulcis(***) in lipopolysaccharide(LPS)-induced mouse macrophage Raw ***:The extract of *** fruits(EHDF) were extracted with 70%*** macrophages were treated with different concentrations of EHDF in the presence and absence of LPS(1 μg/mL).To demonstrate the inflammatory mediators including nitric oxide,inducible nitric oxide synthase and cyclooxygenase(COX)-2 expression levels were analyzed by usingin vitro assay ***-derived pro-inflammatory cytokines including interleukin-1 β.tumor necrosis factor- α and prostaglandin F_2 were determined using ELISA *** viability,heme oxygenase-1 expression,nuclear factor-kappaB and nuclear factor F.2-related factors 2 translocation were also ***:EHDF potently inhibited the LPS-stimulated nitric oxide,inducible nitric oxide ***-2,interleukin-1 β and tumor necrosis factor- α expression in a dose-dependent *** suppressed the phosphorylation of inhibited kappaB-alpha and p65 nuclear *** of macrophage cells with EHDF alone induced the heme oxygenase-1 and nuclear translocation of nuclear factor E2-reIated factor ***:These results suggest that the ethanol extract of *** fruit exerts its anti-inflammatory effects by inhibiting inhibited kappaBalpha phorylation and nuclear translocation of nuclear factor-kappaB.

关键词： Fruits of Hovenia dulcis Inflammation Macrophage Nuclear factor-kappaB Heme oxygenase-1

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探讨胸部低剂量CT在老年体检人群肺癌早期筛查中的应用价值

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中国CT和MRI杂志 2024年第8期22卷 32-34页

作者：张巨才李海文杨金永解耀锃聊城市第二人民医院放射科山东聊城252600 山东颐养健康集团淄博医院影像科山东淄博255100 山东第一医科大学附属省立医院医学影像科山东济南250000

目的探究胸部低剂量CT在老年体检人群肺癌早期筛查中的应用价值。方法回顾性分析本院自2020年2月至2022年4月收治的248例老年肺癌患者的临床资料,全部患者均接受了胸部低剂量CT诊断,该组患者在实施病理学诊断后按照病理类型分为肺腺癌(n... 详细信息

目的探究胸部低剂量CT在老年体检人群肺癌早期筛查中的应用价值。方法回顾性分析本院自2020年2月至2022年4月收治的248例老年肺癌患者的临床资料,全部患者均接受了胸部低剂量CT诊断,该组患者在实施病理学诊断后按照病理类型分为肺腺癌(n=221)及肺鳞癌(n=27),对比不同病理类型下肺癌患者的螺旋CT征象。结果该组患者实施胸部低剂量CT检查所显示的异常病变征象如下:胸膜病变82例(33.06%)、肺门肿块45例(18.15%)、空洞和空腔病变42例(16.94%)、肺内多发性结节22例(8.87%)、弥漫性肺间质性病变35例(14.11%)、孤立结节肿块影12例(4.84%)、气管狭窄和梗阻10例(4.03%)。实施胸部低剂量CT检查时,肺腺癌与肺鳞癌相比,毛刺/棘突、胸膜凹陷征、血管连接征所占比例较高,差异有统计学意义(P0.05)。低剂量胸部CT与常规剂量胸部CT比较CTDI、DLP、ED较低,差异有统计学意义(P<0.05)。常规剂量胸部CT与低剂量胸部CT比较主动脉弓上缘分层、支气管分叉层面、膈顶上缘层面的噪声值较低,差异有统计学意义(P<0.05)。结论采用胸部低剂量CT应用在老年体检人群中进行肺癌早期筛查时具有较好的应用价值,同时可发现不同病理类型肺癌在征象上存在明显的差异性,为疾病的诊断及治疗提供可靠依据,同时胸部低剂量CT与常规剂量胸部CT比较的辐射剂量更低,安全性有保障。

关键词：胸部低剂量CT 诊断老年肺癌早期筛查病理类型

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地质岩石样品金属元素化学分析与应用

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世界有色金属 2024年第13期 202-204页

作者：张悦马梦玲杨菊刘亚芳修迪程琳河北省区域地质调查院(河北省地学旅游研究中心) 河北廊坊065000

地质岩石样品的金属元素化学分析是地质科学和资源勘探领域中的一项重要技术。地质岩石样品金属元素化学分析是通过测定岩石和矿石中的金属元素含量来研究地球内部结构、矿产资源和环境质量的关键工具。这一技术的精确性和准确性对于地... 详细信息

地质岩石样品的金属元素化学分析是地质科学和资源勘探领域中的一项重要技术。地质岩石样品金属元素化学分析是通过测定岩石和矿石中的金属元素含量来研究地球内部结构、矿产资源和环境质量的关键工具。这一技术的精确性和准确性对于地质学家、勘探者和环境科学家来说至关重要,它不仅有助于矿藏勘探和开发,还可以用于环境监测和地质研究。为此,本论文探讨了金属元素分析的方法和应用,强调了其在地质学、矿产勘探、环境保护和其他领域中的关键作用,并对分析方法的详细介绍和质量优化措施的讨论,希望能对广大同行有所助益。

关键词：地质岩石样品金属元素化学分析应用

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绵阳市土地利用类型与生态系统服务价值时空变化研究

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地理空间信息 2024年第10期22卷 66-69页

作者：巨涵周乐乐梁晓盈王源哲蔡璨樊敏西南科技大学环境与资源学院四川绵阳621010

基于土地利用类型的生态系统服务价值评估是缓解城镇化带来负面生态环境问题的有效途径之一,本研究采用单位土地利用类型面积生态系统服务价值赋值法结合土地利用程度综合指数分析,分别在行政单元与格网尺度下评估绵阳市长时间序列土地... 详细信息

基于土地利用类型的生态系统服务价值评估是缓解城镇化带来负面生态环境问题的有效途径之一,本研究采用单位土地利用类型面积生态系统服务价值赋值法结合土地利用程度综合指数分析,分别在行政单元与格网尺度下评估绵阳市长时间序列土地利用类型和生态系统服务价值变化趋势。结果表明:①研究区域土地利用程度综合指数除平武县、三台县、盐亭县以外,其余区县普遍增加。②该区域生态系统服务价值受土地利用类型分布影响显著呈递减趋势,这与建设用地面积增加有关。③草地、水域、建设用地和耕地生态系统服务价值与总生态系统服务价值分别呈正、负相关。综上,该结果可为区域基于生态系统服务的土地利用管理与规划提供理论依据与方法借鉴。

关键词：土地利用类型生态系统服务价值土地利用程度综合指数时空变化特征绵阳市

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平房仓智能扦样系统的设计

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粮食与饲料工业 2024年第1期 5-8页

作者：邱杏军向佳炬孙寿良张朝富国粮武汉科学研究设计院有限公司湖北武汉430079

平房仓储量大,人工扦样效率低且劳动强度大,为实现扦样作业的智能化,设计了一种智能扦样系统。该系统由移动装置、扦样装置、图像识别装置、翻转装置、样品收集装置5个部分组成。该系统能够根据扦样指令进行常规扦样排查,也能对粮情监... 详细信息

平房仓储量大,人工扦样效率低且劳动强度大,为实现扦样作业的智能化,设计了一种智能扦样系统。该系统由移动装置、扦样装置、图像识别装置、翻转装置、样品收集装置5个部分组成。该系统能够根据扦样指令进行常规扦样排查,也能对粮情监测异常点进行定点扦样检查。该系统将基于图像识别的在线预检和后台精检结合起来,能及时锁定粮食质变范围,以便快速采取防控措施,保障粮食安全。

关键词：平房仓扦样移动装置图像识别

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Anti-HBV hairpin ribozyme-mediated cleavage of target RNA in vitro

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World Journal of Gastroenterology 2002年第1期8卷 91-94页

作者： Yu-HuSong ju-ShengLin 等 InstituteofLiverDiseases TongjiHospitalTongjiMedicalCollegeHuazhongUniversityofScienceandTechologyWuhan430030HubeiProvinceChina InstituteofLiverDiseases TongjiHospitalTongjiMedicalCollegeHuazho

AIM: To study the preparation and cleavage activity of HpRzdirected against the transcript of HBV core gene in ***: HpRz gene designed by computer targeting thetranscript of HBV core gene was cloned into the vector p1 .5between 5'-cis-Rz and 3'-cis-Rz. 32p-labeled HpRz transcriptproved whether the vector fit for the preparation of hairpinribozyme in vitro. 32p-labeled pKC transcript containing HBVcore region as target-RNA was transcribed using T7 RNApolymerase and purified by denaturing PAGE. Cold HpRztranscript was incubated with 32p-labeled target-RNAs underdifferent conditions and radioautographed after denaturingpolyacrylamide gel ***: HpRz has the specific ability of cleavage of target-RNA at 37℃ and 12 mM MgCL2. Km = 26.31nmol/L, Kcat = 0.18/min. These results revealed that the design of HpRz ***: HpRz prepared in this study possessesspecific catalytic activity from the identification of cleavageactivity. These results indicate that hairpin ribozyme mayintracellularly inhibit the replication of HBV, therefore it maybecome a novel potent weapon for the treatment of hepatitisB.

关键词：乙型肝炎核酶 RNA分裂靶细胞抗病毒机制

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Design,synthesis and antifungal activities in vitro of novel tetralin compounds

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Chinese Chemical Letters 2008年第3期19卷 264-268页

作者： Hui Tang You jun Zhou Yao Wu Li Jia Guo Lv Can Hui Zheng jun Chen ju Zhu Department of Medicinal Chemistry School of Pharmacy Second Military Medical University Shanghai 200433 China

Novel chiral tetralin compounds were designed and synthesized, and their antifungal activities in vitro were tested. The results showed that all of target compounds had potent antifungal activities, and were stronger than that of control compounds tetrahydroisoquinolines. The binding model of lead molecules in the active site of CYP51 of Candida albicans showed that lead compound specifically interacted with the amino acids residues in the active site, without binding with the heme of CYP51, which was different from azole antifungal drugs. The present study might afford a novel lead molecule to develop non-azole CYP51 inhihitars of fungi.

关键词： Antifungal Chiral tetralins Lanosterol 14α-demethylase Design Synthesis

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Study on the Crustal Structure beneath Seismic Station Bachu and Taxkorgan in Xinjiang

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Earthquake Research in China 2015年第2期29卷 265-274页

作者： Tang Mingshuai Wang Haitao Luo ju Kong Xiangyan Yang Feng Earthquake Administration of Xinjiang Uygur Autonomous Region

Using the teleseismic waveform data recorded by the seismic station Bachu （hereafter referred to as station BCH ） in the Tarim Basin and the seismic station Taxkorgan （hereafter referred to as station TAG ） in the west Kunlun Mountains for years, we applied the receiver function H - K stacking method to study the crustal structure beneath stations BCH and TAG. The results showed that there are obvious differences in the crustal thickness beneath stations BCH and TAG, and the regional crustal thickness and terrain have a very good corresponding relationship. There are high crustal average Vp/Vs values beneath the two stations. The crustal thickness is 44km, and the crustal average wave velocity ratio is 1. 849 beneath station BCH. There is a sharp discontinuity in the middle of the crust beneath station BCH at a depth of 21km. There is a low average P wave velocity and low Vp/Vs from the surface to the discontinuity beneath station BCH. The depth of the discontinuity is consistent with the lower interface of the focal depth from accurate location in the Jiashi earthquake source area adjacent to station BCH; and may be the crustal brittle-ductile conversion boundary. The crustal thickness is 69km, and the crustal average wave velocity ratio is 1. 847 beneath station TAG, a thicker crust and high Vp/Vs may indicate that materials in the lower crustal are prone to plastic flow, which is responsible for the thickening of the crust.

关键词： Crustal thickness Poisson ratio Receiver function Brittle-ductile transitionzone Xinjiang

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