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Quantifying Inter-regional Trade Inequality of China's Cities Based on Environmental-economic Benefits in Virtual Built-up Land Flow

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China & World Economy 2024年第5期32卷 226-246页

作者： Pengfei Wang hongbo li Zhenbin Huang College of Public Administration Huazhong Agricultural UniversityChina

The development of spatial interactions of land resources enhances virtual built-up land flow,which contributes to China's inter-regional trade *** is known about the degree of inequality among *** work seeks to estimate the degree of inter-regional trade inequality through environmental-economic *** combined a multiregional input-output model at the city level with a new classification to calculate the virtual built-up land flow among cities and analyzed its implications for the regional economy and carbon *** results indicate that developed regions were the main beneficiaries of inter-regional trade,as reflected in land-use ***'s economic hub has been progressively shifting southward,and the inter-regional trade inequality has continuously *** flow of virtual service industry land among developed regions rose,while underdeveloped regions remained suppliers of raw materials,further increasing inter-regional trade inequality.

关键词： built-up land carbon neutrality multiregional input-output model trade inequality

A comprehensive review on the development of data-driven methods for wind power prediction and AGC performance evaluation in wind–thermal bundled power systems

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Energy and AI 2024年第2期16卷 450-463页

作者： Shuai Wang Bin li Guanzheng li Botong li hongbo li Kui Jiao Chengshan Wang National Industry-Education Platform for Energy Storage Tianjin UniversityTianjin300350China Key Laboratory of Smart Grid of Ministry of Education Tianjin UniversityTianjin300072China Power Dispatching and Control Center Inner Mongolia Power(Group)Co.LtdHohhot010020China

The wind–thermal bundled power system achieves energy complementarity and optimized scheduling, which is an important way to build a new type of energy system. For the safe and stable operation of the wind–thermal bundled power system, accurate data-driven analysis is necessary to maintain real-time balance between electricity supply and demand. By summarizing the development and characteristics of wind–thermal bundled power system in China and different countries, current research in this field can be clearly defined in two aspects: short-term wind power prediction for wind farms and performance evaluation of automatic generation control (AGC) for thermal power generation units. For short-term wind power prediction, it is recommended to focus on historical data preprocessing and artificial intelligence methods. The technical characteristics of different data-driven wind power prediction methods have been compared in detail. For performance evaluation of AGC units, a comprehensive analysis was conducted on current evaluation methods, including the “permitted-band” and “regulation mileage” methods, as well as the issue of evaluation failure in traditional evaluation methods in practical engineering. Finally, the relative optimal dynamic performance of AGC units was discussed and the future trend of data-driven research in wind–thermal bundled power system was summarized.

关键词： Wind power prediction Automatic generation control Performance evaluation Data-driven Feature analysis

Disruption of a microvitellogenin gene impairs eggshell formation in Mythimna separata

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Journal of Integrative Agriculture 2024年第11期23卷 3801-3811页

作者： lingling li Junhong Fu Changgeng Dai Yuhang Zhou Yang Hu hongbo li Institute of Plant Protection Guizhou Academy of Agricultural Sciences Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region School of Agriculture Institute of Entomology Guizhou University Crop Genetic Resources and Germplasm Innovation in Karst Region Ministry of Agriculture and Rural Affairs

Microvitellogenin(mVg) belongs to the lepidopteran-specific lipoprotein＿11 super family and is thought to be involved in insect reproduction. However, the function of mVg in reproduction has not been established. In this study, we identified and characterized MsmVg in Mythimna separata, a destructive insect pest of grain crops. MsmVg is comprised of a 1,310 bp open reading frame(ORF) encoding 437 amino acids. Structural analysis showed that MsmVg contains three conserved domains in the lipoprotein＿11 super family, including the all-α-N-terminal domain(NTD), a Pseudomonas putida homologous domain(PPD), and an all-β-C-terminal domain(CTD). MsmVg was highly expressed in mature female adults and enriched in the ovaries of 3-day-old female adults. Disruption of MsmVg by RNA interference did not change the expression of MsmVg, vitellogenin(MsVg) or the vitellogenin receptor(MsVgR) in fat bodies, but it inhibited their transcription in ovaries. Phenotype analysis showed that knockdown of MsmVg did not affect yolk deposition in ovaries, but impaired eggshell formation and led to a reduction in the reproductive capacity. Furthermore, knockdown of MsmVg significantly inhibited the expression of genes associated with eggshell formation(MsChP1-3 and MsFcP3C). Taken together, these data suggest that MsmVg plays an important role in female reproduction by affecting eggshell formation in M. separata, which provides a potential target for managing this insect pest.

关键词： microvitellogenin Mythimna separata reproduction RNA interference

Efficient and stable hybrid perovskite-organic light-emitting diodes with external quantum efficiency exceeding 40 per cent

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light(Science & Applications) 2024年第7期13卷 1364-1371页

作者： lingmei Kong Yun Luo Qianqian Wu Xiangtian Xiao Yuanzhi Wang Guo Chen Jianhua Zhang Kai Wang Wallace CHChoy Yong-Biao Zhao hongbo li Takayuki Chiba Junji Kido Xuyong Yang Key Laboratory of Advanced Display and System Applications of Ministry of Education Shanghai UniversityShanghai 200072China. Institute of Nanoscience and Applications Department of Electrical and Electronic EngineeringSouthern University of Science and TechnologyShenzhen 518055China. Department of Electrical and Electronic Engineering The University of Hong KongHong KongChina. Department of Physics and Lakeside AR/VR Laboratory International Joint Research Center for Optoelectronic and Engineering ResearchYunnan UniversityKunming 650091China. Experimental Center of Advanced Materials School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing 100081China. Graduate School of Organic Materials Science Frontier Center for Organic MaterialsYamagata University4-3-16 JonanYonezawa 992–8510Japan

light-emitting diodes(LEDs)based on perovskite semiconductor materials with tunable emission wavelength in visible light range as well as narrow linewidth are potential competitors among current light-emitting display technologies,but still suffer from severe instability driven by electric ***,we develop a stable,efficient and highcolor purity hybrid LED with a tandem structure by combining the perovskite LED and the commercial organic LED technologies to accelerate the practical application of *** LED and organic LED with close photoluminescence peak are selected to maximize photon emission without photon reabsorption and to achieve the narrowed emission *** designing an efficient interconnecting layer with p-type interface doping that provides good opto-electric coupling and reduces Joule heating,the resulting green emitting hybrid LED shows a narrow linewidth of around 30 nm,a peak luminance of over 176,000 cd m^(−2),a maximum external quantum efficiency of over 40%,and an operational half-lifetime of over 42,000 h.

关键词： diodes narrow quantum

Virus-Host Interactions Drive Contrasting Bacterial Diel Dynamics in the Ocean

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Research 2024年第2期6卷 389-399页

作者： Xiaowei Chen Chen Hu Wei Wei Yunlan Yang Markus G.Weinbauer hongbo li Shiying Ren Ruije Ma YVibin Huang Tingwei Luo Nianzhi Jiao Rui Zhang State Key Laboratory of Marine Environmental Science College of Ocean and Earth SciencesFujian Key Laboratory of Marine Carbon SequestrationXiamen UniversityXiamen 361102PR China College of the Environment and Ecology Xiamen UniversityXiamen 361102PR China Research Center for Environmental Ecology and Engineering School of Environmental Ecology and Biological EngineeringWuhan Institute of TechnologyWuhan 430205PR China Sorbonne Universités UPMCUniversitéParis 06CNRSLaboratoire d'Oceanographie de Villefranche(LOV)Villefranche-sur-Mer 06230France National Marine Environmental Monitoring Center Ministry of Ecological EnvironmentDalian 116023PR China Department of Ocean Sciences University of CaliforniaSanta CruzCAUSA NOAA/OAR Pacific Marine Environmental Laboratory SeattleWAUSA Institute for Advanced Study Shenzhen UniversityShenzhen 518055PR China

Marine organisms perform a sea of diel *** diel dynamics have been shown to be driven by light,energy resources,circadian rhythms,and the coordinated coupling of photoautotrophs and heterotrophic ***,we explore the diel fluctuation of viral production and decay and their impact on the total and active bacterial community in the coastal and open seawaters of the South China *** results showed that the night-production diel pattern of lytic viral production was concurrent with the lower viral decay at night,contributing to the accumulation of the viral population size during the night for surface *** diel variations in bacterial activity,community composition,and diversity were found highly affected by viral *** was revealed by the finding that bacterial community diversity was positively correlated to lytic viral production in the euphotic zone of the open ocean but was negatively related to lysogenic viral production in the coastal *** distinct but contrasting correlations suggest that viral life strategies can not only contribute to diversifying bacterial community but also potentially piggyback their host to dominate bacterial community,suggesting the tightly synchronized depth-dependent and habitat-specific diel patterns of virus-host *** further implies that viruses serve as an ecologically important driver of bacterial diel dynamics across the ocean,highlighting the viral roles in bacterial ecological and biogeochemical processes in the ocean.

关键词： coastal ocean Marine

Consensus linkage map construction and QTL mapping for eight yield-related traits in wheat using the BAAFS Wheat 90K SNP array

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Journal of Integrative Agriculture 2024年第11期23卷 3641-3656页

作者： lihua liu Pingping Qu Yue Zhou hongbo li Yangna liu Mingming Zhang liping Zhang Changping Zhao Shengquan Zhang Binshuang Pang Institute of Hybrid Wheat Beijing Academy of Agriculture and Forestry Sciences The Municipal Key Laboratory of Molecular Genetic of Hybrid Wheat Beijing Academy of Agriculture and Forestry Sciences Key Laboratory of Crop DNA Fingerprinting Innovation and Utilization (Co-construction by Ministry and Province) Ministry of Agriculture and Rural Affairs

Identifying stable quantitative trait loci （QTLs） for yield-related traits across populations and environments is crucial for wheat breeding and genetic *** maps also play important roles in wheat genetic and genomic *** the present study,a wheat consensus map was constructed using a doubled haploid （DH） population derived from Jinghua 1×Xiaobaidongmai （JX）,an F2population derived from L43×Shanxibaimai （LS） and the BAAFS Wheat 90K SNP array single nucleotide polymorphism （SNP） array.A total of 44,503 SNP markers were mapped on the constructed consensus map,and they covered 5,437.92 cM across 21 *** consensus map showed high collinearity with the individual maps and the wheat reference genome IWGSC RefSeq *** data on eight yield-related traits were collected in the JX population,as well as the F2:3and F2:4populations of LS,in six,two and two environments,respectively,and those data were used for QTL *** composite interval mapping （ICIM） identified 32 environmentally stable QTLs for the eight yield-related *** them,four QTLs（***-4B,***-4B,***-4B,and ***-5A.3） were detected across mapping populations and environments,and nine stable QTLs （***-1D,***-2B,***-3D,***-3D,***-4B,***-5D,***-6A.1,***-6A,and ***-6D） are likely to be *** physical region of 17.25–44.91 Mb on chromosome 4B was associated with six yield-related traits,so it is an important region for wheat *** physical region around the dwarfing gene Rht24 contained QTLs for kernel length （KL）,kernel width （KW）,spike length （SL）,and thousand-grain weight （TGW）,which are either from a pleiotropic effect of Rht24 or closely linked *** the stable QTLs,254 promising candidate genes were *** them,TraesCS5A03G1264300,TraesCS1B03G0624000 and TraesCS6A03G0697000 are particularly noteworthy since their homologous genes have similar functions for th

关键词： consensus map QTL yield-related traits wheat ( Triticum aestivum L.)

240 nm AlGaN-based deep ultraviolet micro-LEDs:size effect versus edge effect

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Journal of Semiconductors 2024年第1期45卷 55-62页

作者： Shunpeng Lu Jiangxiao Bai hongbo li Ke Jiang Jianwei Ben Shanli Zhang Zi-Hui Zhang Xiaojuan Sun Dabing li State Key Laboratory of Luminescence and Applications Changchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesChangchun 130033China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Key Laboratory of Electronic Materials and Devices of Tianjin School of Electronics and Information EngineeringHebei University of TechnologyTianjin 300401China

240 nm AlGaN-based micro-LEDs with different sizes are designed and ***,the external quantum efficiency(EQE)and light extraction efficiency(LEE)are systematically investigated by comparing size and edge ***,it is revealed that the peak optical output power increases by 81.83%with the size shrinking from 50.0 to 25.0μ***,the LEE increases by 26.21%and the LEE enhancement mainly comes from the sidewall light *** notably,transversemagnetic(TM)mode light intensifies faster as the size shrinks due to the tilted mesa side-wall and Al reflector ***,when it turns to 12.5μm sized micro-LEDs,the output power is lower than 25.0μm sized *** underlying mechanism is that even though protected by SiO2 passivation,the edge effect which leads to current leakage and Shockley-Read-Hall(SRH)recombination deteriorates rapidly with the size further ***,the ratio of the p-contact area to mesa area is much lower,which deteriorates the p-type current spreading at the mesa *** findings show a role of thumb for the design of high efficiency micro-LEDs with wavelength below 250 nm,which will pave the way for wide applications of deep ultraviolet(DUV)micro-LEDs.

关键词： AlGaN deep ultraviolet micro-LEDs light extraction efficiency size effect edge effect

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常宁市古树资源特征及空间分布

中南林业科技大学学报 2024年第5期44卷 84-92页

作者：李泓伯陈政中南林业科技大学湖南长沙410004 湖南工学院湖南衡阳421002

【目的】古树是森林资源的重要组成部分,见证了自然地理和人文历史的变迁,与一个地区的自然环境与文化涵养密切相关。为更有效地推进湖南省常宁市的古树资源保护工作,对常宁市的古树资源特征及其空间分布进行调查分析。【方法】以常宁... 详细信息

【目的】古树是森林资源的重要组成部分,见证了自然地理和人文历史的变迁,与一个地区的自然环境与文化涵养密切相关。为更有效地推进湖南省常宁市的古树资源保护工作,对常宁市的古树资源特征及其空间分布进行调查分析。【方法】以常宁市古树为研究对象,通过实地调研获取研究数据,结合常宁市古树名木信息最新纠偏数据,对常宁市古树名木资源的种类组成、结构特征、生境与生长状况特征以及空间分布格局进行分析。【结果】常宁市现有古树共489株,隶属于27科43属62种,主要以樟科、壳斗科、大戟科为优势科,以樟属、秋枫属、枫香树属为优势属,以樟树、枫香树、重阳木为优势种,常宁市古树名木资源丰富,且具有一定的研究价值。从古树年龄结构来看,常宁市三级古树占比最大,为386株(占总数的78.94%),二级古树和一级古树次之,分别为73株(占总数的14.93%)和30株(占总数的6.13%);古树的树龄总体偏小,其中最大的树龄为815 a。从径级结构来看,常宁市古树的平均胸径为95.86 cm,平均树高为16.92 m,平均冠幅为11.67m。从空间分布格局来看,常宁市古树中分布于平坡、缓坡和斜坡的分别有306、131和21株;生长在红壤、黄壤和紫色土的分别有103、310和76株;有378株分布于海拔0~200m,有65株分布于海拔201~400m,有30株分布于海拔401~600 m,有16株分布于海拔601~800 m;生长于城区、乡村街道和远郊野外的分别有8、133和348株。从常宁市各乡镇古树分布数量来看,西岭镇、塔山乡和庙前镇是拥有古树数量最多的乡镇。从生长状况来看,生长势为正常株的古树共有472株,衰弱株的古树共有14株,濒危株的古树共有3株。【结论】通过对常宁市古树资源进行深入分析,掌握了常宁市古树资源特征与空间分布格局,其分布特征与坡度、土壤、海拔、人口密度有关,为提高古树资源保护工作效率提供了条件和依据。

关键词：常宁市古树资源特征分布

鄂尔多斯盆地上古生界煤系烃源岩三环萜烷成因探讨

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沉积学报 2024年第4期42卷 1433-1446页

作者：林舒敏张敏李洪波油气地球化学与环境湖北省重点实验室(长江大学资源与环境学院) 武汉430100 油气资源与勘探技术教育部重点实验室(长江大学) 武汉430100

【目的】鄂尔多斯盆地煤系烃源岩发育,其饱和烃中三环萜烷含量丰富,但其三环萜烷分布模式在研究区表现出较大的差异性,因此探讨其差异性的主控因素具有重要意义。【方法】利用气相色谱和色谱—质谱分析技术,对鄂尔多斯盆地上古生界26个... 详细信息

【目的】鄂尔多斯盆地煤系烃源岩发育,其饱和烃中三环萜烷含量丰富,但其三环萜烷分布模式在研究区表现出较大的差异性,因此探讨其差异性的主控因素具有重要意义。【方法】利用气相色谱和色谱—质谱分析技术,对鄂尔多斯盆地上古生界26个煤系烃源岩样品饱和烃进行了详细地剖析。【结果】根据三环萜烷(TT)的分布特征将研究区烃源岩样品划分为三种不同类型的分布模式。Ⅰ类烃源岩以C_(19)TT为主峰,C_(19)TT、C_(20)TT、C_(21)TT含量逐渐减小的变化趋势,同时该类样品中Pr/Ph比值高,介于1.19~3.84,平均值为2.99、C_(24)四环萜烷含量也较丰富,C_(24)四环萜烷/C_(26)TT比值介于2.39~32.54,平均值为9.80、C_(28)三环萜烷和C_(29)三环萜烷缺失,这类样品主要是腐殖煤和炭质泥岩,揭示出湖沼相沉积环境之特征;与之相反的Ⅱ类烃源岩的三环萜烷以C_(23)TT为主峰,C_(19)TT、C_(20)TT、C_(21)TT含量是逐渐增大的,而Pr/Ph比值低,比值主要介于0.34~0.90,平均值为0.61、C_(24)四环萜烷含量不丰富,C_(24)四环萜烷/C_(26)TT比值主要介于0.42~0.77,平均值为0.54、C_(28)三环萜烷和C_(29)三环萜烷含量丰富,这类样品除了煤系泥岩之外还有腐殖煤和炭质泥岩,其沉积环境与Ⅰ类烃源岩迥然不同;Ⅲ类烃源岩的三环萜烷分布介于Ⅰ类和Ⅱ类烃源岩之间,一方面三环萜烷的主峰碳为C_(23)TT,另一方面C_(19)TT、C_(20)TT、C_(21)TT相对含量又依次降低并呈阶梯状分布的特征,此外Pr/Ph比值为2.07、C_(24)四环萜烷/C_(26)TT比值为3.53,两者均介于Ⅰ类烃源岩和Ⅱ类烃源岩之间。【结论】随着烃源岩热演化程度的增加,三环萜烷的总量展示了逐渐增大的变化趋势,但不同类型烃源岩的三环萜烷分布模式并没有发生明显变化,说明研究区煤系烃源岩三环萜烷的不同分布模式受有机质热演化程度影响较小,而主要受控于沉积环境和母质类型。

关键词：三环萜烷主控因素沉积环境煤系烃源岩鄂尔多斯盆地