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西葫芦嫩瓜皮叶绿素合成代谢与其皮色形成的关联性研究

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植物遗传资源学报 2024年第8期25卷 1336-1346页

作者：李可悦王丹丹刘江涛申琼盖少杰武峻新山西农业大学园艺学院

为了挖掘优异西葫芦（Cucurbita pepo L.）种质资源，提高外观品质优的嫩瓜选择效率，本研究利用色差仪对本单位创制的54份西葫芦自交系进行不同嫩瓜皮色分类，并以其中7份（重点4份）代表性材料为研究对象，对西葫芦嫩瓜皮叶绿素合成... 详细信息

为了挖掘优异西葫芦（Cucurbita pepo L.）种质资源，提高外观品质优的嫩瓜选择效率，本研究利用色差仪对本单位创制的54份西葫芦自交系进行不同嫩瓜皮色分类，并以其中7份（重点4份）代表性材料为研究对象，对西葫芦嫩瓜皮叶绿素合成代谢与其皮色形成的关联性进行分析。结果表明，叶绿素是决定偏白色、浅绿色、翠（青）绿色、绿色和深绿色西葫芦嫩瓜皮色的主要色素。其中，叶绿素a含量占总含量的49.20%～60.58%，是决定嫩瓜皮色深浅的主要因素。颜色最鲜艳且更加偏绿色的翠（青）绿色嫩瓜皮材料，其色度值（C）显著大于其他皮色，而叶绿素a/叶绿素b和红绿值（a*）分别显著大于和小于偏白色、浅绿色和深绿色皮色。深绿色、翠（青）绿色和偏白色嫩瓜皮叶绿素合成存在胆色素原转化为尿卟啉原Ⅲ和粪卟啉原Ⅲ转化为原卟啉IX两个受阻点，且后一转换阶段是导致偏白色和翠（青）绿色嫩瓜皮叶绿素合成受阻、叶绿素含量骤降的主要原因。叶绿素合成减弱与叶绿素代谢中的叶绿素酶降解活性增强以及抗氧化酶中的超氧化物歧化酶和过氧化氢酶活性减弱之间呈显著相关，这也证明了嫩瓜皮偏白色的成因。超氧化物歧化酶和过氧化氢酶活性与嫩瓜皮叶绿素含量呈显著相关，这两种酶延缓了翠（青）绿色和深绿色嫩瓜皮叶绿素含量降低速率。本研究结果为深入解析不同嫩瓜皮色，特别是翠（青）绿色嫩瓜皮呈色机理以及挖掘、利用相关优异特异资源提供了理论依据和技术支撑。

关键词：西葫芦嫩瓜皮色翠(青)绿色叶绿素合成代谢

腐皮镰刀菌根腐病对砧用南瓜根系形态特征及生理指标的影响

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西北农业学报 2024年第9期33卷 1690-1697页

作者：王丹丹李可悦刘江涛盖少杰武峻新申琼山西农业大学园艺学院太原030031

根腐病严重影响瓜类生产,通过比较苗期接种腐皮镰刀菌后抗病和高感砧用南瓜材料根系形态及生理响应,为解析根系响应机理及创制抗根腐病材料提供理论基础。抗病和高感自交系两叶一心时伤根接种法接种,0 d、2 d、4 d、6 d、8 d检测根系总... 详细信息

根腐病严重影响瓜类生产,通过比较苗期接种腐皮镰刀菌后抗病和高感砧用南瓜材料根系形态及生理响应,为解析根系响应机理及创制抗根腐病材料提供理论基础。抗病和高感自交系两叶一心时伤根接种法接种,0 d、2 d、4 d、6 d、8 d检测根系总根长、根表面积、平均根系直径、总根体积等形态学指标;同一时期测定根部过氧化氢酶(CAT)活性、过氧化物酶(POD)活性、苯丙氨酸解氨酶(PAL)活性及丙二醛(MDA)含量。结果表明,在接菌0~8 d,抗病材料总根体积极显著高于高感材料,总根长和根表面积极显著或显著高于高感材料,根构型参数较好。同一时期抗病材料根部的CAT、POD、PAL活性(除0 d)显著高于高感材料,而MDA含量显著低于高感材料。根系吸收功能评价及过氧化物酶系统调节酶的测定可以作为早期抗根腐病砧用南瓜材料的评价指标。

关键词：砧用南瓜腐皮镰刀菌根腐病根系形态生理指标

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Explainable-AI-based two-stage solution for WSN object localization using zero-touch mobile transceivers

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Science China(Information Sciences) 2024年第7期67卷 27-45页

作者： Kai FANG junxin CHEN Han ZHU Thippa Reddy GADEKALLU Xiaoping wu Wei WANG School of Mathematics and Computer Science Zhejiang A&F University School of Software Dalian University of Technology Faculty of Applied Sciences Macao Polytechnic University Department of Electrical and Computer Engineering Lebanese American University School of Information Engineering Huzhou University Guangdong-Hong Kong-Macao Joint Laboratory for Emotional Intelligence and Pervasive Computing Artificial Intelligence Research Institute Shenzhen MSU-BIT University

Artificial intelligence technology is widely used in the field of wireless sensor networks(WSN).Due to its inexplicability, the interference factors in the process of WSN object localization cannot be effectively eliminated. In this paper, an explainable-AI-based two-stage solution is proposed for WSN object localization. In this solution, mobile transceivers are used to enlarge the positioning range and eliminate the blind area for object localization. The motion parameters of transceivers are considered to be unavailable,and the localization problem is highly nonlinear with respect to the unknown parameters. To address this,an explainable AI model is proposed to solve the localization problem. Since the relationship among the variables is difficult to fully include in the first-stage traditional model, we develop a two-stage explainable AI solution for this localization problem. The two-stage solution is actually a comprehensive consideration of the relationship between variables. The solution can continue to use the constraints unused in the firststage during the second-stage, thereby improving the performance of the solution. Therefore, the two-stage solution has stronger robustness compared to the closed-form solution. Experimental results show that the performance of both the two-stage solution and the traditional solution will be affected by numerical changes in unknown parameters. However, the two-stage solution performs better than the traditional solution, especially with a small number of mobile transceivers and sensors or in the presence of high noise. Furthermore,we have also verified the feasibility of the proposed explainable-AI-based two-stage solution.

关键词： explainable AI object localization semidefinite relaxation mobile transceiver two-stage solution closed-form solution

Recombinant adenovirus-p53(Gendicine) sensitizes a pancreatic carcinoma cell line to radiation

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Chinese Journal of Cancer Research 2013年第6期25卷 715-721页

作者： Jinluan Li Jianji Pan Xianggao Zhu Ying Su Lingling Bao Sufang Qiu Changyan Zou Yong Cai junxin wu Ivan W.K.Tham Department of Radiation Oncology Teaching Hospital of Fujian Medical UniversityFujian Provincial Cancer Hospital Department of Radiation Oncology Peking University People's Hospital Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education) Department of Radiation OncologyPeking University Cancer Hospital & Institute Department of Radiation Oncology National University Cancer Institute

Objective： In this study, we examine the effects of recombinant adenovirus-p53 （rAd-p53） on the pancreatic carcinoma cell line SW1990. Specifically, we determine if expression of rAd-p53 sensitizes these cells to radiation. Methods： Following transfection of SW1990 cells with rAd-p53, we measured expression of P53, P21 and Bax by immunocytochemistry. Both transfected and control cell lines were irradiated with a range of doses, and the survival fractions （SF） were calculated. Dose survival cttrves were constructed and modeled for comparison. Results： Transfection of SW1990 cells with rAd-p53 resulted in increased expression of P53, P21 and Bax in a time-dependent manner. At 96 h after transfection, 89.92% of cells expressed P53, 56.8% expressed P21, and 76.50% expressed Bax. The SF following radiation was lower in the rAd-p53 transfected cells compared to the control cells, suggesting that rAd-p53 sensitizes SW1990 cells to radiation （Do for the experimental and control groups was 2.199 and 2.462, respectively）. Conclusions： Use of the adenoviral vector is an effective means of transfecting SW1990 cells with wild-type P53, and this sensitizes the cell line to irradiation. This work suggests that combining rAd-p53 with radiation therapy in pancreatic cancer may be therapeutically beneficial.

关键词： Pancreatic carcinoma recombinant adenovirus-p5 3 (rAd-p 5 3 ) transfection radiosensitization

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蔬菜耐未熟抽薹性的研究及利用

北方园艺 2005年第6期 4-6页

作者：武峻新山西省农业科学院蔬菜研究所太原030031

蔬菜中如大白菜、甘蓝、萝卜、胡萝卜、芹菜、菠菜、洋葱、葱、莴笋等在四季生产中,尤其春夏等季节常因环境条件与自身遗传因素,易产生未熟抽薹,给生产带来极大损害.对抽薹性进行有效的鉴定,探明其作用机理、识别及分离与抽薹有关的基因... 详细信息

蔬菜中如大白菜、甘蓝、萝卜、胡萝卜、芹菜、菠菜、洋葱、葱、莴笋等在四季生产中,尤其春夏等季节常因环境条件与自身遗传因素,易产生未熟抽薹,给生产带来极大损害.对抽薹性进行有效的鉴定,探明其作用机理、识别及分离与抽薹有关的基因,选育出耐抽薹品种显得尤其重要.国外的许多学者对此做了大量研究,已有许多研究报道.近几年,在我国,蔬菜春夏生产增多,耐未熟抽薹性研究已备受关注,并已进行了许多有益的工作,但总体仍有许多问题尚待研究和探讨.

关键词：未熟抽薹蔬菜耐抽薹品种遗传因素胡萝卜大白菜生产洋葱春夏

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提高西葫芦采种质量的技术措施

中国种业 2005年第6期 47-48页

作者：武峻新山西省农业科学院蔬菜研究所太原030031

在西葫芦制种过程中,及时防治病虫害将有利于西葫芦种子发育和提高结籽率.

关键词：西葫芦技术措施质量采种防治病虫害制种过程种子发育结籽率

Characteristics of rural domestic sewage discharge and their driving mechanisms: evidence from the Northern Region, China

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Frontiers of Environmental Science & Engineering 2024年第7期18卷 47-58页

作者： Jianguo Liu Ziyu Zhou Pengyu Li Zixuan Wang Ying Yan Xuezheng Yu Wenkai Li Tianlong Zheng Yingnan Cao Wenjun wu Wenqian Cai Zhining Shi junxin Liu Key Laboratory of Environmental Pollution Control and Remediation at Universities of Inner Mongolia Autonomous Region College of Resources and Environmental EngineeringInner Mongolia University of TechnologyHohhot 010051China State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China University of Chinese Academy of Sciences Beijing 100049China SCEGC No.12 Construction Engineering Group Co. Ltd.Ankang 725000China State Environmental Protection Key Laboratory of Environmental Planning and Policy Simulation Chinese Academy of Environmental PlanningBeijing 100041China Technical Centre for Soil Agriculture and Rural Ecology and EnvironmentMinistry of Ecology and EnvironmentBeijing 100012China Sustainable Infrastructure and Resource Management(SIRM) UniSA STEMUniversity of South AustraliaSouth AustraliaMawson LakesSA 5095Australia

The traits of rural domestic sewage emission are unclear,negatively affecting rural domestic sewage treatment and sewage *** study used data from the Second National Pollution Source Census Bulletin to establish a data *** spatial distribution characteristics and main factors influencing rural sewage discharge in the Northern Region were studied using spatial autocorrelation analysis and structural *** findings demonstrated that(l)a significant Spearman correlation between drainage water volume(DwV),chemical oxygen demand(COD),ammonia nitrogen(NH_(3)-N),total nitrogen(TN),and total phosphorus(TP)and that the correlation coefficients between DWV and COD,NH,-N,TNand TP were 0.87**,1.0**,0.99**,0.99**,respectively;(2)rural sewage discharge showed spatial autocorrelation,and rural domestic sewage discharge in the districts and counties with an administration was significantly higher than in the surrounding areas;and(3)social development was the main driver rural domestic sewage changes(path coefficient was 0.407**),and the main factors influencing rural domestic sewage discharge were the urbanization rate,years of education,and population age *** study obtained the spatial variation law and clarified the main influencing factors of rural domestic sewage to provide data support and a theoretical basis for subsequent rural sewage collection and *** of the Inner Mongolia Autonomous Region in northern China as a typical case,provides a theoretical foundation for scientific decision-making on rural domestic sewage treatment at the national and regional levels and offers new perspectives for managing pollutants.

关键词： Rural domestic sewage Emission characteristics Spatial autocorrelation analysis Influencing factors

A Class of Active Queue Management Algorithm Based on BP Neural Network

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A Class of Active Queue Management Algorithm Based on BP Neu...

2009中国控制与决策会议

作者： wu junxin,Liu Jianchang,Guo Zhe School of Information Science and Engineering,Northeastern University,Shenyang 110004

＜正＞As an end-to-end congestion control mechanism,Active Queue Management（AQM） technology maintains smaller queue length and higher link utilization through discarding packets in intermediate network *** paper discussed some previous AQM algorithms,RED,BLUE and RLGD,and found out shortcomings in which by comparing with *** the Basis of Artificial Intelligence（AI） theory and technology,a new AQM algorithm based on BP neural network is *** the end,the implement of the new Active Queue Management algorithm is presented,and the convergence is proved.

关键词： Active Queue Management Congestion control RED BP neural network

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日光温室西葫芦秋冬栽培低产原因与对策

农业科技通讯 2007年第2期 42-43页

作者：武峻新山西省农业科学院蔬菜研究所太原030031

西葫芦在棚室蔬菜栽培中占有重要地位，随着经济效益的不断提高，秋冬茬日光温室的栽种比例逐年增加。但是产量一至徘徊不前，因此探明造成栽培中低产的原因，采取相应的增产措施，对日光温室西葫芦生产十分重要。

关键词：低产原因日光温室秋冬栽培西葫芦蔬菜栽培经济效益秋冬茬棚室