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热湿气候下蒸发冷却式冷凝器系统的节能特性对比研究

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暖通空调 2024年第8期54卷 90-99页

作者：杨洋曾俊杨博宇尹林茂贺天友南华大学衡阳南华大学建筑环境控制技术湖南省工程实验室衡阳南华大学装配式建筑节能技术湖南省重点实验室衡阳

为评估和提高蒸发冷却式冷凝器系统(MVC-EC)在热湿气候条件下的应用潜力,提出了一种结构优化的两级蒸发冷却式双冷凝器系统(MVC-TSEC),并基于详细的能耗分析模型进行了性能对比研究。首先,建立了各系统中所有组件的分布式参数模型,并进... 详细信息

为评估和提高蒸发冷却式冷凝器系统(MVC-EC)在热湿气候条件下的应用潜力,提出了一种结构优化的两级蒸发冷却式双冷凝器系统(MVC-TSEC),并基于详细的能耗分析模型进行了性能对比研究。首先,建立了各系统中所有组件的分布式参数模型,并进行了实验数据验证。其次,分析了室外空气温度和相对湿度及房间显冷负荷对2种系统COP和节能率的影响。最后,评估了2种系统在典型热湿城市的节能潜力。结果显示:相较于MVC-EC系统,MVC-TSEC系统在高温、中高湿度和高负荷工况下具有更好的节能优势,节能率约提高4.3%~10.9%,并且可提高制冷剂系统适应温度约0.8~1.9℃;在广州市和长沙市夏季6—8月,MVC-TSEC系统的节能率分别为12.7%和21.1%,高于MVC-EC系统(8.5%和14.9%)。

关键词：热湿气候蒸发冷却式冷凝器两级蒸发冷却式双冷凝器结构优化节能

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低磷胁迫对麻竹幼苗叶片非结构性碳水化合物及抗氧化保护酶系统的影响

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福建农林大学学报（自然科学版） 2024年第1期53卷 56-61页

作者：江瑞熠朱梦恬杨靖韩永振何天友荣俊冬郑郁善陈礼光福建农林大学林学院福建福州350002 福建农林大学园林学院福建福州350002

【目的】通过研究磷胁迫下麻竹幼苗叶片的生理变化探究麻竹幼苗对低磷环境的耐受性。【方法】以麻竹幼苗为研究对象,采用水培法进行室内控制条件下的低磷胁迫试验。按照霍格兰配方配制营养液,用KH2PO4分别配制0、0.2、0.4、0.8和1.6 mmo... 详细信息

【目的】通过研究磷胁迫下麻竹幼苗叶片的生理变化探究麻竹幼苗对低磷环境的耐受性。【方法】以麻竹幼苗为研究对象,采用水培法进行室内控制条件下的低磷胁迫试验。按照霍格兰配方配制营养液,用KH2PO4分别配制0、0.2、0.4、0.8和1.6 mmol·L^(-1)磷溶液,其他营养元素含量保持相同。【结果】麻竹幼苗叶片还原糖和可溶性糖含量随磷含量的提高而提高;淀粉、纤维素、MDA含量及抗氧化酶(CAT、POD、SOD)活性随磷含量的提高而降低。相比于缺磷处理(0 mmol·L^(-1)),磷浓度为1.6 mmol·L^(-1)时麻竹幼苗叶片的各个生理指标均呈显著差异,还原糖及纤维素含量分别上升了56.45%和67.08%,淀粉、可溶性糖、MDA含量及抗氧化酶(CAT、POD、SOD)活性分别下降了34.86%、14.61%、73.89%、64.19%、89.99%和65.34%;在不同浓度磷胁迫下MDA含量均呈显著差异,可溶性糖含量差异最小,而POD酶活性差异最大。【结论】麻竹幼苗对低磷胁迫具有较强的抗逆性,在苗期能适应低磷环境。

关键词：麻竹低磷胁迫非结构性碳水化合物抗氧化酶活性

不同施氮量对麻竹光合特性和氮代谢关键酶活性的影响

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山东农业科学 2024年第4期56卷 87-91页

作者：林美霞苏建霖朱芃铠陈凌艳何天友陈礼光荣俊冬郑郁善福建农林大学风景园林与艺术学院福建福州350002 福建农林大学林学院福建福州350002

本试验以麻竹为材料,分别设置0 g/丛(N0,对照)、11.2 g/丛(N1)、13.5 g/丛(N2)、22.5 g/丛(N3)共4个施氮量水平,于盆栽条件下研究不同施氮量对笋期麻竹叶片光合特性、氮代谢关键酶活性及出笋数量的影响,并分析出笋数量与各出笋期叶片光... 详细信息

本试验以麻竹为材料,分别设置0 g/丛(N0,对照)、11.2 g/丛(N1)、13.5 g/丛(N2)、22.5 g/丛(N3)共4个施氮量水平,于盆栽条件下研究不同施氮量对笋期麻竹叶片光合特性、氮代谢关键酶活性及出笋数量的影响,并分析出笋数量与各出笋期叶片光合特性、氮代谢关键酶活性的相关性。结果表明,施用氮肥可显著增强笋期麻竹叶片光合特性、氮代谢关键酶活性,显著提高出笋数量。麻竹叶片净光合速率(Pn)、气孔导度(Gs)、蒸腾速率(Tr)和硝酸还原酶(NR)、谷氨酰胺合成酶(GS)、谷氨酸合成酶(GOGAT)活性及出笋数量均随施氮量的增加而增加,N3处理即施氮量为22.5 g/丛时各指标达到最大值,而胞间二氧化碳(Ci)则呈相反趋势。相关性分析表明,各出笋期叶片Pn、Gs、Tr和NR、GS、GOGAT活性与出笋数量呈极显著正相关关系。综上看出,施氮量22.5 g/丛(N3)能够更好地协调碳氮代谢水平,增强麻竹光合特性,提高氮代谢关键酶活性,增加麻竹出笋数量。

关键词：麻竹施氮量光合特性氮代谢出笋数量

Allele-aware chromosome-scale assembly of the allopolyploid genome of hexaploid Ma bamboo(Dendrocalamus latiflorus Munro)

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Journal of Integrative Plant Biology 2022年第3期64卷 649-670页

作者： Yushan Zheng Deming Yang Jundong Rong Liguang Chen Qiang Zhu tianyou he Lingyan Chen Jing Ye Lili Fan Yubang Gao Hangxiao Zhang Lianfeng Gu College of Forestry Fujian Agriculture and Forestry UniversityFuzhou 350002China College of Landscape Architecture Fujian Agriculture and Forestry UniversityFuzhou 350002China Basic Forestry and Proteomics Research Center College of ForestryFujian Provincial Key Laboratory of Haixia Applied PlantSystems BiologyFujian Agriculture and Forestry UniversityFuzhou 350002China

Dendrocalamus latiflorus Munro is a woody clumping bamboo with rapid shoot *** genetic transformation and clustered regularly interspaced short palindromic repeats(CRISPR)/CRISPR-associated protein 9(Cas9)gene editing techniques are available for ***,enabling reverse genetic ***,*** has the potential to be a model bamboo ***,the genome sequence of *** has remained unreported due to its polyploidy and large genome ***,we sequenced the *** genome and assembled it into three allele-aware subgenomes(AABBCC),representingthe largest genome of a major bamboo *** assembled 70 allelic chromosomes(2,737 Mb)for hexaploid *** using both singlemolecule sequencing from the Pacific Biosciences(Pac Bio)Sequel platform and chromosome conformation capture sequencing(Hi-C).Repetitive sequences comprised 52.65%of the *** *** annotated 135231 protein-coding genes in the genome based on transcriptomes from eight different *** sequencing using RNA-Seq and Pac Bio singlemolecule real-time long-read isoform sequencing revealed highly differential alternative splicing(AS)between non-abortive and abortive shoots,suggesting that AS regulates the abortion rate of bamboo *** high-quality hexaploid genome and comprehensive strand-specific transcriptome datasets for this Poaceae family member will pave the way for bamboo research using *** as a model species.

关键词： alternative splicing bamboo shoots chromosome conformation capture sequencing D.latiflorus genome assembly single-molecular sequencing

An optimal flow rate allocation model of the oilfield treated oil pipeline network

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Petroleum 2024年第1期10卷 93-100页

作者： Hai Li tianyou Fan Kun Wang Xueyuan Long Yu he Meng Wang Wen Cheng Qian Huang Huirong Huang Weichao Yu PetroChina Southwest Oil & Gasfield Company China Petroleum Planning & Engineering Institute School of Petroleum Engineering Chongqing University of Science and Technology PipeChina Oil & Gas Control Center

Oilfield treated oil pipeline network is the link connecting the upstream oilfields and the downstream refineries. Due to the differences in operating costs and transportation fee between different pipelines and the fluctuation in the demand and sales prices of the treated oil, there is an optimal flow allocation plan for the pipeline network to make the oilfield company obtain the highest social and economic benefit. In this study, a mixed integer nonlinear programming(MINLP) model is developed to determine the optimal flow rate allocation plan of the large-scale and complex treated oil pipeline network, and both the social and economic benefits are considered simultaneously. The optimization objective is the multi-objective which includes the largest user satisfaction and the highest economic benefit. The model constraints include the oilfield production capacity, refinery demand, pipeline transmission capacity,flow, pressure, and temperature of the node and station, and the pipeline hydraulic and thermal calculations. Python 3.7 is utilized for the programming of the off-line calculation procedure and the MINLP model, and GUROBI 9.0.2 is served as the MINLP solver. Moreover, the model is applied to a real treated oil pipeline network located in China, and three optimization scenarios are analyzed. For social benefit,the values of the user satisfaction of each refinery and the total network are 1 before and after optimization for scenarios 1, 2, and 3. For economic benefit, the annual revenue can be increased by 0.227,0.293, and 0.548 billion yuan after the optimization in scenario 1, 2, and 3, respectively.

关键词： Treated oil pipeline network Flow rate allocation Optimal User satisfaction Economic benefit

Error-based adaptive optimal tracking control of nonlinear discrete-time systems

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Science China(Information Sciences) 2024年第1期67卷 154-167页

作者： Chun LI Jinliang DING Frank L.LEWIS tianyou CHAI State Key Laboratory of Synthetical Automation for Process Industries Northeastern University UTA Research Institute The University of Texas at Arlington

In this paper,for the output tracking problem of nonlinear discrete-time systems,a performance index is newly defined using the adaptive dynamic programming(ADP) technique to completely eliminate tracking errors in *** contrast to traditional definitions of performance indices in other ADP-based methods,the proposed performance index is not only designed from the perspective of output tracking errors but also introduced errors of system states and control inputs at adjacent stages,which is suitable for practical situations in many industrial applications,such as the alumina production,the flotation process,and the mineral grinding *** proved that the obtained controller can make the system output fully track the given reference trajectory by applying the iterative criteria of the ADP *** addition,the proposed algorithm was implemented using a data-driven technique and neural networks to avoid analyzing and deducing the complicated dynamics of actual industrial ***,using historical data for a forced-circulation evaporation system in the alumina production process,the effect of the proposed approach was verified through a numerical simulation and compared with that of the proportional-integral controller.

关键词： adaptive dynamic programming iterative criteria performance index tracking errors tracking problem

HUNK inhibits cargo uptake and lysosomal traffic in the caveolar pathway via the AGAP3/ARF6

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Science Bulletin 2024年第2期69卷 173-178页

作者： Siyuan Jiang Xiaoqi Han Tihui Liu Ying he Zidong Zhao Tongfeng Liu Shuwen Cheng Jihang Zhang Liqiang Duan Yajuan Liu tianyou Cheng Yong Liu Qinong Ye Shan Gao Zhongda Hospital Medical SchoolAdvanced Institute for Life and HealthSoutheast UniversityNanjing 20096China Medical School of Guizhou University Guiyang 550025China Shanxi Academy of Advanced Research and Innovation Taiyuan 030032China Zhongda Hospital School of Life Sciences and TechnologyAdvanced Institute for Life and HealthSoutheast UniversityNanjing 210096China Nanjing University Medical School Nanjing 210046China Hubei Key Laboratory of Cell Homeostasis College of Life SciencesTaiKang Center for Life and Medical SciencesWuhan UniversityWuhan 430072China Department of Medical Molecular Biology Beijing Institute of BiotechnologyCollaborative Innovation Center for Cancer MedicineBeijing 100850China

Endocytosis is a crucial cellular process that takes up cargos by enclosing them in membrane-bound vesicles,and transports cargos to different parts of the cell,such as the lysosomes[1].Endocytosis is classified into several mechanistically and morphologically pathways,including clathrin-mediated endocytosis(CME)and caveolae-mediated endocytosis(CavME)[1,2].

关键词： endocytosis cargo uptake

A growth-regulating factor 7(GRF7)-mediated gene regulatory network promotes leaf growth and expansion in sugarcane

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The Crop Journal 2024年第2期12卷 422-431页

作者： Qiaoyu Wang Yihan Li Dadong Lin Xiaoxi Feng Yongjun Wang tianyou Wang Hongyan Ding Jisen Zhang State Key Lab for Conservation and Utilization of Subtropical AgroBiological Resources and Guangxi Key Lab for Saccharum Biology Guangxi UniversityNanning 530005GuangxiChina Center for Genomics and Biotechnology/Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology/Key Laboratory of Saccharum Biology and Genetic Breeding/National Engineering Research Center for Saccharum Fujian Agriculture and Forestry UniversityFuzhou 350002FujianChina

Knowledge of the function of growth-regulating factors(GRFs)in sugarcane(Saccharum officinarum and ***)growth and development could assist breeders in selecting desirable plant ***,limited information about GRFs is available in Saccharum due to their *** this study,22 GRFs were identified in the two species and their conserved domains,gene structures,chromosome location,and synteny were ***7 expression varied among tissues and responded to diurnal ***7-YFP was localized preferentially in the nucleus and appears to act as a transcriptional ***7 positively regulated the size and length of rice leaves,possibly by regulating cell size and plant *** seven potential transcription factors binding to the SsGRF7 promoter in ***,four showed positive expression patterns,and two showed negative expression patterns relative to SsGRF7.

关键词： Expression analysis Growth-regulating factor Leaf development Sugarcane Transcription factors

Recent advances in two-dimensional photovoltaic devices

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Journal of Semiconductors 2024年第5期45卷 26-40页

作者： Haoyun Wang Xingyu Song Zexin Li Dongyan Li Xiang Xu Yunxin Chen Pengbin Liu Xing Zhou tianyou Zhai State Key Laboratory of Materials Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China Research Institute of Huazhong University of Science and Technology in Shenzhen Shenzhen 518057China Optics Valley Laboratory Wuhan 430074China

Two-dimensional(2D)materials have attracted tremendous interest in view of the outstanding optoelectronic properties,showing new possibilities for future photovoltaic devices toward high performance,high specific power and *** recent years,substantial works have focused on 2D photovoltaic devices,and great progress has been ***,we present the review of recent advances in 2D photovoltaic devices,focusing on 2D-material-based Schottky junctions,homojunctions,2D−2D heterojunctions,2D−3D heterojunctions,and bulk photovoltaic effect ***,advanced strategies for improving the photovoltaic performances are demonstrated in ***,conclusions and outlooks are delivered,providing a guideline for the further development of 2D photovoltaic devices.

关键词： two-dimensional materials photovoltaic devices photodetectors solar cells heterostructures