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基于O_(2)分子1.27μm气辉反演临近空间温度廓线的新方法

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红外与毫米波学报 2024年第2期43卷 215-225页

作者：王道琦王后茂胡向瑞何微微李发泉武魁军烟台大学物理与电子信息学院山东烟台264005 中国科学院国家空间科学中心北京100190 中国科学院精密测量科学与技术创新研究院湖北武汉430071

1.27μm波段O_(2)(a^(1)Δg)气辉的辐射强度高、自吸收效应弱,是反演临近空间大气温度的理想目标源。基于O_(2)分子气辉光谱理论以及“剥洋葱”算法,利用扫描成像大气吸收光谱仪(SCIAMACHY)的近红外临边观测数据,成功反演50~100 km区域... 详细信息

1.27μm波段O_(2)(a^(1)Δg)气辉的辐射强度高、自吸收效应弱,是反演临近空间大气温度的理想目标源。基于O_(2)分子气辉光谱理论以及“剥洋葱”算法,利用扫描成像大气吸收光谱仪(SCIAMACHY)的近红外临边观测数据,成功反演50~100 km区域的大气温度廓线。与SABER、ACE-FtS及激光雷达的观测结果对比表明,在55~85 km的切线高度范围内温度测量误差优于±10 K,而在55 km以下与85 km以上空间区域,由于受到自吸收效应、大气散射以及OH气辉的光谱污染等干扰,温度反演结果出现显著偏差。

关键词：临近空间 O_(2)(a^(1)Δg)气辉临边观测剥洋葱算法温度反演

driving functions and traces of the Loewner equation

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Science China Mathematics 2014年第8期57卷 1615-1624页

作者： wu HaiHua dONG XinHan College of Mathematics and Computer Science Key Laboratory of High Performance Computing and Stochastic Information ProcessingHunan Normal University

We consider the chordal Loewner differential equation in the upper half-plane,the behavior of the driving functionλ(t)and the generated hull Kt when Kt approachesλ(0)in a fixed direction or in a *** the case that the hull Kt is generated by a simple curveγ(t)withγ(0)=0,we prove some sharp relations ofλ(t)/√t andγ(t)/√t as t→0 which improve the previous work.

关键词： Loewner equation hull half-plane capacity driving function

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小兴安岭林业企业碳足迹核算及影响因素

西北林学院学报 2024年第4期39卷 284-292页

作者：王卉林文树吴金卓栾兆平东北林业大学机电工程学院黑龙江哈尔滨150040 东北林业大学土木与交通学院黑龙江哈尔滨150040 国家林业和草原局重点国有林区森林资源监测中心黑龙江加格达奇165000

准确核算林业企业的碳足迹对于推动林业碳汇交易、促进林业的绿色、低碳、可持续发展以及助力碳中和目标的实现具有重要意义。首先以小兴安岭重点国有林区17个林业企业为研究对象,基于多层次的温室气体核算标准,将碳排放源划分为3个范围... 详细信息

准确核算林业企业的碳足迹对于推动林业碳汇交易、促进林业的绿色、低碳、可持续发展以及助力碳中和目标的实现具有重要意义。首先以小兴安岭重点国有林区17个林业企业为研究对象,基于多层次的温室气体核算标准,将碳排放源划分为3个范围,构建林业企业碳足迹核算体系;然后结合IPCC方法和基于过程的生命周期评价方法,构建林业企业碳足迹核算模型,并利用2017-2021年17家林业企业调研数据,测算碳足迹总量和碳足迹强度,识别关键的碳排放环节;最后探讨林地面积、土地利用变化、造林面积、抚育面积、病虫鼠害防治面积、机械燃油消耗量、车辆燃油消耗量、雇佣劳动力、燃煤消耗量和耗电量对林业企业碳足迹的影响。研究表明,1)2017-2021年,小兴安岭国有林区平均碳足迹为58 142.81 t,年平均碳足迹强度为18.17 kg·hm^(-2),范围2占总碳足迹的65.53%,其次是范围1(19.97%),最后是范围3(14.50%)。2)各林业企业年平均碳足迹在2 539~4 619 t,其中,新青、朗乡、乌伊岭、友好、红星属于高碳足迹地区,平均碳足迹是4 054 t;南岔、美溪、汤旺河、铁力、金山屯属于中等碳足迹地区,平均碳足迹是3 551 t;上甘岭、桃山、双丰、乌马河、翠峦、五营、带岭属于低碳足迹地区,平均碳足迹是2 874 t。年平均碳足迹强度在12.73~27.53 kg·hm^(-2),呈现南高北低的趋势。3)燃煤消耗量、耗电量、林业面积、抚育面积、机械燃油消耗量和车辆燃油消耗量是林业企业碳足迹的主要显著影响因素。因此,林业企业应提高能源利用效率,提升森林经营活动中抚育作业的效率,增加清洁能源的使用比例,以减少林业企业的碳足迹。

关键词：林业企业碳足迹国有林区影响因素

Integrated evaluation of payments for ecosystem services programs in China:a systematic review

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Ecosystem Health and Sustainability 2018年第3期4卷 16-28页

作者： wu Yang Qiaoling Lu College of Environmental and Resource Sciences Zhejiang UniversityHangzhouChina

Introduction:during the past two decades,payments for ecosystem services(PES)program has become a popular conservation paradigm for realigning socioeconomic costs and benefits among different *** billions of investment flows into the natural capital pool,there is growing interest to understand the ecological,economic,and social outcomes of PES *** is one of the countries that extensively implements PES *** there is a growing interest to perform impact evaluation of China’s massive PES programs,it is unclear that what existing literature has done,has not done,and should do in the ***,to guide further research and practices,we conduct a systematic review of studies on China’s PES ***:Our review shows that there are growing impact evaluation studies of PES programs in ***,the spatial and ecosystem distributions of existing studies are quite *** case studies were poorly designed,rarely quantified,and evaluated without sophisticated *** the three dimensions of ecological effectiveness,economic efficiency,and social equity,economic efficiency is the least *** and Conclusion:We further discuss the challenges and opportunities and provide insights for future *** improve the understanding and management of natural capital,we call for mainstreaming impact evaluation of ecosystem service policies in China and beyond following the state-of-art procedures.

关键词： Effectiveness efficiency equity impact evaluation trade-off and synergy spillover effect

the chalara-like anamorphs of Leotiomycetes

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Fungal diversity 2023年第2期119卷 213-490页

作者： Wenping wu Yongzhao diao R&d Center Novozymes ChinaNo.14 Xin Xi LuShang Di ZoneHaidian DistrictBeijing 100085People’s Republic of China

the chalara-like anamorphs of Leotiomycetes are phialidic hyphomycetes with cylindrical collarettes and deeply seated sporulating loci,and hyaline,aseptate or septate,cylindrical *** are commonly found on plant litters in both terrestrial and submerged environments,and with broad geographical *** paper reports our research result of diversity,taxonomy and phylogeny of these fungi in China,which is based on a systematic study by using an integrated approach of literature study,morphological observation and phylogenetic analyses of 153 chalara-like fungal species with diversified morphology in conidiomata,setae,conidiophores,phialides and *** phylogenetic analyses employing different datasets of SSU,LSU and ItS sequences of 116 species showed that these chalara-like fungi were paraphyletic and scattered in 20 accepted genera belonging to five families of Leotiomycetes:Arachnopezizaceae,Hamatocanthoscy-phaceae,Helotiaceae,Neolauriomycetaceae and *** six genera,Ascoconidium,Bioscypha,Chalaro-dendron,didonia,Phaeoscypha and tapesina,all reported with chalara-like anamorphs in literatures,are also accepted as members of Pezizellaceae or Leotiomycetes genera incertae *** of these 26 accepted genera of chalara-like fungi in Leotiomycetes,17 genera are asexually typified genera(Ascoconidium,Bloxamia,Chalara,Chalarodendron,Constric-tochalara,Cylindrochalara,Cylindrocephalum,Leochalara,Lareunionomyces,Minichalara,Neochalara,Neolauriomyces,Nagrajchalara,Parachalara,Stipitochalara,Xenochalara and Zymochalara),and 9 are sexually typified genera(Bioscypha,Bloxamiella,Calycellina,Calycina,didonia,Hymenoscyphus,Mollisina,Phaeoscypha and tapesina).the phylogenetic significance of conidial septation in generic delimitation was further confirmed;while other morphologies such as conidi-omata,setae,conidiophores,phialides,conidial length,and conidial ornamentation have little phylogenetic significance,but could be used for speci

关键词： Leotiomycetes Chalara-like fungi Anamorphs diversity taxonomy Phylogeny China

Exact solutions of dispersion equation for MHd waves with short-wavelength modification

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Chinese Science Bulletin 2011年第10期56卷 955-961页

作者： CHEN Ling wu deJin purple Mountain Observatory Chinese Academy of Sciences Nanjing 210008 China Graduate University of Chinese Academy of Sciences Beijing 100012 China

dispersive magnetohydrodynamic (MHd) waves with short-wavelength modification have an important role in transforming energy from waves into *** this paper,based on the two-fluid mode,a dispersion equation,including the short-wavelength effect,and its exact solution are *** outcome is responsible for the short-wavelength modification versions of the three ideal MHd modes (*** fast,slow and Alfve'n).the results show that the fast and Alfve'n modes are modified considerably by the shortwavelength effect mainly in the quasi-parallel and quasi-perpendicular propagation directions,respectively,while the slow mode can be affected by the short-wavelength effect in all propagation *** the other hand,the dispersive modification occurs primarily in the finite-β regime of 0.001 the fast mode and in the high-β regime of 0.1 the slow *** the Alfve'n mode,the dispersive modification occurs from the low-β regime of β through the high-β regime of β > 1.

关键词：色散方程短波长修改精确解 d波传播方向流体模式 MHd

theoretical coupling longitudinal-transverse model and experimental verification of transverse vibration of rope for multi-rope friction hoisting system

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International Journal of Coal Science & technology 2016年第1期3卷 77-84页

作者： Juan wu Ziming Kou Mechanical Engineering College Taiyuan University ofTechnology Taiyuan 030024 China Shanxi Provincial Engineering Laboratory for Mine FluidControl Taiyuan 030024 China

Using the mass of time-varying length balance rope focused on the hoisting conveyance, the coupling longi- tudinal-transverse model of mine friction hoist was established by using of the Hamilton＇s principle. the modified Galerkin＇s method was used to discretize partial differential Eqs. the mine hoisting system was used to the example to analysis the relation between the load, velocity and transverse vibration of rope. the in situ tests were illustrated to evaluate the proposed mathematical model. the results showed that the modeling method can well represent the transverse vibration of rope.

关键词： Hoisting system Vibration Rope Longitudinal-transverse Coupling

P4HB在胶质母细胞瘤中的表达及其对临床预后和肿瘤细胞增殖与迁移的影响

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解放军医学杂志 2024年第4期49卷 459-467页

作者：黄冠又侯小红葛学成甘鸿川郝淑煜吴震贵阳市第二人民医院神经外科贵州贵阳550081 首都医科大学附属北京天坛医院神经外科北京100070

目的探讨脯氨酸4-羟化酶β多肽(P4HB)在多形性胶质母细胞瘤(GBM)中的表达及其对临床预后和肿瘤细胞增殖与迁移的影响。方法(1)根据癌症基因组图谱(tCGA)、GtEx数据库和GEPIA2数据库,应用R软件分析P4HB基因在GBM与正常脑组织的表达差异。... 详细信息

目的探讨脯氨酸4-羟化酶β多肽(P4HB)在多形性胶质母细胞瘤(GBM)中的表达及其对临床预后和肿瘤细胞增殖与迁移的影响。方法(1)根据癌症基因组图谱(tCGA)、GtEx数据库和GEPIA2数据库,应用R软件分析P4HB基因在GBM与正常脑组织的表达差异。(2)选取2017年2月-2019年12月在贵阳市第二人民医院神经外科接受手术治疗的52例GBM肿瘤标本,另选取10例正常脑组织作为对照。应用免疫组织化学方法检测GMB组织和正常脑组织中P4HB的表达水平。采用log-rank检验的Kaplan-Meier法进行生存分析;受试者工作特征(ROC)曲线分析P4HB对GBM患者生存率的预测价值。采用Cox回归模型分析P4HB表达水平及相关临床病理因素与患者预后的关系。(3)将人源性GBM U87细胞随机分为对照组、NC-siRNA组和P4HB-siRNA组。P4HB-siRNA组转染siRNA干扰P4HB表达。采用实时荧光定量PCR(qRt-PCR)检测U87细胞中P4HB mRNA含量;CCK-8法和免疫荧光染色检测P4HB对U87细胞增殖活力的影响;划痕实验检测P4HB对U87细胞迁移能力的影响。结果与正常脑组织比较,P4HB在GBM组织中表达明显上调(Pt细胞(r=-0.227)和滤泡辅助性t细胞(r=-0.226)与P4HB表达呈负相关,而自然杀伤(NK)细胞(r=0.417)、巨噬细胞(r=0.374)、中性粒细胞(r=0.344)和未成熟树突状细胞(r=0.263)与P4HB表达呈正相关。Kaplan-Meier生存分析结果显示,P4HB高表达组GBM患者中位生存期和中位疾病特异生存期均短于低表达组(PtERt启动子突变是GBM患者预后的独立危险因素(P<0.05)。与对照组和NC-siRNA组比较,P4HB-siRNA组U87细胞转染siRNA后P4HB表达减少(P<0.01),细胞增殖能力和细胞划痕愈合率降低(P<0.001)。结论P4HB在GBM中高表达并提示患者预后不良;敲除P4HB可抑制GBM U87细胞的增殖和迁移。P4HB可能成为GBM的相关预测标志物和潜在治疗靶点。

关键词：脯氨酸4-羟化酶β多肽胶质母细胞瘤预后增殖迁移

Automatic facade recovery from single nighttime image

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Frontiers of Computer Science 2020年第1期14卷 95-104页

作者： Yi ZHOU Qichuan GENG Zhong ZHOU Wei wu State Key Laboratory of Virtual Reality technology and Systems Beihang UniversityBeijing 100083China

Nighttime images are difficult to process due to insufficient brightness,lots of noise,and lack of ***,they are always removed from time-lapsed image *** is interesting that nighttime images have a unique and wonderful building features that have robust and salient lighting cues from human *** variation depicts both the statistical and individual habitation,and it has an inherent man-made repetitive structure from architectural *** by this,we propose an automatic nighttime fa?ade recovery method that exploits the lattice structures of window ***,a simple but efficient classification method is employed to determine the salient bright regions,which may be lit *** we groupwindows into multiple lattice proposals with respect to fa?ades by patch matching,followed by greedily removing overlapping *** the horizon constraint,we solve the ambiguous proposals problem and obtain the correct ***,we complete the generated fa?ades by filling in the missing *** method is well suited for use in urban environments,and the results can be used as a good single-view compensation method for daytime *** method also acts as a semantic input to other learning-based 3d image reconstruction *** experiment demonstrates that our method works well in nighttime image datasets,and we obtain a high lattice detection rate of 82.1%of 82 challenging images with a low mean orientation error of 12.1±4.5 degrees.

关键词： facade recovery nighttime images lattice detection