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Phenotypic plasticity and genetic variation of cotton yield and its related traits under water-limited conditions

The Crop Journal 2020年第6期8卷 966-976页

作者： Baoqi Li Qin Tian xuwen Wang Bei Han Li Liu Xianhui Kong Aijun Si Juan Wang Zhongxu Lin Xianlong zhang Yu Yu Xiyan Yang National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhan 430070HubeiChina Cotton Institute Xinjiang Academy of Agriculture and Reclamation ScienceShihezi 832000XinjiangChina

Global warming is limiting availability of water resources in arid and semi-arid regions,and so understanding water use efficiency(WUE)is increasingly important for agricultural production in those *** China is the largest cotton producing area,the problem of balancing WUE and efficient cotton production is a major *** this study,we used a natural population of 517 Upland cotton accessions to conduct a water-controlled trial in south and north of Xinjiang over two years.A total of 18 traits including agronomic traits,fiber yield indices and fiber quality indices,were investigated for broad-sense heritability and coefficient of *** water limitation was found to promote the establishment of favorable agronomic traits in cotton,associated with an increased cotton yield of 8.46%in Xinjiang,at the expense of a certain degree of fiber quality,such as decreased fiber length and an over-higher micronaire *** detected 33 QTL related to response to water limitation using a drought resistance coefficient(DRC),and 6 QTL were found using a comprehensive indicator of CIDT(comprehensive index of drought tolerance)at the genetic level by integrating resequencing *** novel QTL-hotspots including six differentially expressed genes(DEGs)were further identified related to the drought response of *** findings not only suggested a new approach to irrigation of cotton fields in Xinjiang,but also provided abundant genetic evidence for genetic breeders to study drought improvement of crops.

关键词： Upland cotton Water-limited conditions Fiber yield Fiber quality QTL hotspot

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Geochemistry and sources of hydrate-bound gas in the Shenhu area, northern south China sea: Insights from drilling and gas hydrate production tests

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JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING 2022年第PartC期208卷 109459-109459页

作者： Liang, Qianyong Xiao, Xi Zhao, Jing zhang, Wei Li, Yun Wu, Xuemin Ye, Jianliang Qin, xuwen Qiu, Haijun Liang, Jinqiang Lu, Jing'an Dong, Yifei zhang, Tingting Xiong, Yongqiang Jiang, Wenmin Guo, Binbin China Geol Survey Guangzhou Marine Geol Survey Guangzhou 510075 Peoples R China China Geol Survey Nat Gas Hydrate Engn Technol Ctr Guangzhou 510075 Peoples R China Southern Marine Sci & Engn Guangdong Lab Guangzho Guangzhou 511458 Peoples R China Chinese Acad Sci Guangzhou Inst Geochem State Key Lab Organ Geochem Guangzhou 510640 Peoples R China

Research on the origin and source of hydrate-bound gas and its relationship to deep conventional oil and gas accumulation in a basin is critical to understanding the accumulation mechanism of gas hydrates and to resource evaluation of gas hydrate accumulation. In this study, the hydrate-bound gas obtained via pressure coring and the production gas recovered during a production test on a gas hydrate reservoir in the Shenhu area offshore of Southern China were tested and discussed. The geochemical analysis results indicate that methane is the predominant gas, and heavier hydrocarbons (C2+) are also present but in low concentrations. The molecular compositions of the hydrate gas recovered from two production test sites are similar to those of the hydrate-bound gas acquired via pressure coring. In addition to the isotopic composition of the methane, the carbon and hydrogen isotopes of the C2+ hydrocarbons were obtained for the first time. The delta C-13 isotopes of the methane range from -66.6 parts per thousand to -46.2 parts per thousand, indicating that the hydrate-bound gases have a mixed origin, containing both biogenic and thermogenic gases. The plot of delta C-13(1) versus delta C-13(2) suggests that the biogenic and thermogenic hydrocarbons were derived from marine organic matter and terrestrial organic matter, respectively. The isotopic characterization of the hydrate-bound gas reveals that the thermogenic hydrate gas contains both humic-type gas and sapropel-type gas, but the sapropel-type gas is predominant. The source rocks of the thermogenic hydrate gas are interpreted to be both the gas-prone coal measure strata of the Enping Formation and the oil-prone medium-deep lacustrine strata of the Wenchang Formation, the latter of which contributed more to the hydrocarbon supply of the gas hydrates. In addition, the maturity of the source rocks of the thermogenic hydrate gas may be lower than that of the deeply buried conventional hydrocarbons discovered in the Ba

关键词： Gas hydrates Pressure core Production test Hydrate-bound gas Source rocks Migration Shenhu area Northern South China Sea

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Cobalt-decorated 3D hybrid nanozyme: A catalytic amplification platform with intrinsic oxidase-like activity

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ELECTROCHIMICA ACTA 2021年 395卷 139197-139197页

作者： Lu, Nannan Yan, Xiaoyi Gu, Yue zhang, Tingting Liu, Yu Song, Yu Xu, Zhiqian Xing, Yue Li, xuwen zhang, Zhiquan Zhai, Shengyong Jilin Univ Coll Chem Changchun 130012 Peoples R China Anhui Univ Chinese Med Sch Pharm Hefei 230013 Peoples R China Qingdao Univ Qingdao Canc Inst Qingdao 266071 Peoples R China Changchun Univ Chinese Med Jilin Ginseng Acad Changchun 130117 Peoples R China

Research about constructing multi-dimensional carbon nanomaterials is of great significance in electrocatalytic and sensing fields in order to integrate structural merits of each individual unit. Also, nano-materials with enzyme-like activities are prospective candidates for artificial enzyme design and electrochemical application. Herein, we fabricate Co, N co-doped hierarchical hybrid (Co@NCNTs/NC) nanozyme, which integrates of both N-doped carbon nanotubes (NCNTs) and N-doped carbon sheets (NC). The three-dimensional (3D) porous carbon composite is prepared by thermal treatment of metal-organic framework (MOF) which was synthesized by growing of ZIF-67 on ZIF-L at room temperature. The obtained nanomaterial not only possesses an improved oxidase-like activity that can catalyze 3,3',5,5'-tetramethylbenzidine (TMB) in the absence of hydrogen peroxide (H2O2), but also constructs a signal amplification platform towards dopamine (DA) due to the synergistic catalysis of Co species and N-doped porous carbon architecture. The electrocatalytic performance for DA detection shows a broad linear range from 30 nM to 710 mu M and a detection limit of 9 nM. The Co@NCNTs/NC/GCE is employed to practically detect DA in human serum and artificial cerebrospinal fluid (aCSF) samples with satisfactory results. The present work exhibits a great promising in colorimetric and electrochemical sensing fields and presents a new sight for the fabrication of MOF-derived nanozyme. (C) 2021 Elsevier Ltd. All rights reserved.

关键词： Metal-organic frameworks Oxidase-like activity Nanozyme Electrochemical sensing Dopamine

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Predictive models of hypertensive disorders in pregnancy based on support vector machine algorithm

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TECHNOLOGY AND HEALTH CARE 2020年第S1期28卷 S181-S186页

作者： Yang, Lin Sun, Ge Wang, Anran Jiang, Hongqing zhang, Song Yang, Yimin Li, xuwen Hao, Dongmei Xu, Mingzhou Shao, Jing Beijing Univ Technol Coll Life Sci & Bioengn Intelligent Physiol Measurement & Clin Translat Beijing Int Base Sci & Technol Cooperat Beijing 100024 Beijing Peoples R China Chinese Acad Med Sci Inst Med Informat Beijing 100020 Peoples R China Haidian Maternal & Children Hlth Hosp Beijing 100080 Peoples R China Beijing Aerosp ChangFeng Co Ltd Beijing 100071 Peoples R China Beijing Yes Med Devices Co Ltd Beijing 100152 Peoples R China

BACKGROUND: The risk factors of hypertensive disorders in pregnancy (HDP) could be summarized into three categories: clinical epidemiological factors, hemodynamic factors and biochemical factors. OBJECTIVE: To establish models for early prediction and intervention of HDP. METHODS: This study used the three types of risk factors and support vector machine (SVM) to establish prediction models of HDP at different gestational weeks. RESULTS: The average accuracy of the model was gradually increased when the pregnancy progressed, especially in the late pregnancy 28-34 weeks and >= 35 weeks, it reached more than 92%. CONCLUSION: Multi-risk factors combined with dynamic gestational weeks' prediction of HDP based on machine learning was superior to static and single-class conventional prediction methods. Multiple continuous tests could be performed from early pregnancy to late pregnancy.

关键词： Support vector machine algorithm machine learning model research

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T1ρ和T2 mapping成像观察青少年尺桡骨远端骺板

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中国医学影像技术 2022年第5期38卷 739-742页

作者：张慈慈梁治平刘琼冯友珍钟敏之曾旭文暨南大学附属广州红十字会医院放射科广东广州510220 暨南大学附属第一医院影像中心广东广州510632

目的以T1ρ和T2 mapping成像观察青少年尺、桡骨远端骺板表现,分析其可行性。方法前瞻性纳入20名健康青少年志愿者,采集双侧腕关节T1ρ和T2 mapping,观察尺、桡骨远端骺板形态,测量尺骨远端骺板内、外侧区和桡骨远端骺板内侧区、中间区... 详细信息

目的以T1ρ和T2 mapping成像观察青少年尺、桡骨远端骺板表现,分析其可行性。方法前瞻性纳入20名健康青少年志愿者,采集双侧腕关节T1ρ和T2 mapping,观察尺、桡骨远端骺板形态,测量尺骨远端骺板内、外侧区和桡骨远端骺板内侧区、中间区及外侧区T1ρ和T2值;比较不同侧别、性别间尺、桡骨远端骺板总体及不同区域的T1ρ和T2值差异,分析尺、桡骨和远端骺板T1ρ及T2值与年龄的相关性。结果尺、桡骨远端骺板于T1ρ和T2 mapping原始图中均呈板状高信号。不同侧别、性别之间,尺、桡骨远端骺板总体及不同区域T1ρ和T2值差异均无统计学意义(P均>0.05)。桡骨远端骺板T1ρ值与年龄呈正相关(r=0.596,P=0.006),其余参数均与年龄无明显相关性(P均>0.05)。结论T1ρ及T2 mapping成像可直观显示青少年尺、桡骨远端骺板形态,定量观察骺板生化改变,可行性好。

关键词：尺骨桡骨生长板磁共振成像 T1ρ T2 mapping 前瞻性研究

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“哨兵-2”卫星影像及C2RCC算法在太湖冬春季水色分析中的应用

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中国环境监测 2024年第3期40卷 271-282页

作者：李旭文张悦姜晟王甜甜崔嘉宇纪轩禹陈冰魏玉强陈栋江苏省环境监测中心江苏省太湖水质监测中心站江苏南京210019 南京信息工程大学遥感与测绘工程学院江苏南京210044

利用太湖2019—2022年冬春季“哨兵-2”卫星10 m分辨率的MSI影像和SNAP软件C2RCC(Case 2 Regional CoastColour)模块,以适合浑浊、富营养程度较高、光学复杂的“二类水体”的C2X-nets为模式,开展太湖叶绿素a、总悬浮物浓度、透明度等水... 详细信息

利用太湖2019—2022年冬春季“哨兵-2”卫星10 m分辨率的MSI影像和SNAP软件C2RCC(Case 2 Regional CoastColour)模块,以适合浑浊、富营养程度较高、光学复杂的“二类水体”的C2X-nets为模式,开展太湖叶绿素a、总悬浮物浓度、透明度等水色参数反演。结果表明:冬春季太湖各湖区叶绿素a浓度处于较低水平,但4月中旬起有明显抬升;太湖西部沿岸区、南部沿岸区和湖心区总悬浮物浓度较高,表明这些湖区易受风浪影响,造成沉积物再悬浮;太湖东部沿岸区、北部湖湾及东太湖遥感反演的水体清澈度较高,可能与这些湖区冬春季沉水植物菹草的分布有关,菹草生长对水质有较好的净化效果。总体来看,基于C2X-nets模式的C2RCC反演算法从较高分辨率卫星遥感影像中提取的水色信息,能有效反映太湖冬春季水色指标的空间分布特征,可为湖体生态状况及动态变化的长期监测评估提供有价值的参考。

关键词：哨兵-2 遥感 C2RCC算法水色反演太湖

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面动脉穿支筋膜蒂皮瓣与任意皮瓣修复面中部皮肤肿瘤切除后缺损的疗效比较

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中华全科医学 2023年第4期21卷 576-580页

作者：宋培军李旭文李薇王怀谷霍继武张硕徐静蚌埠医学院第一附属医院整形烧伤科安徽蚌埠233004

目的探讨面中部皮肤肿瘤切除后采用面动脉穿支筋膜蒂皮瓣修复缺损的临床应用价值。方法选取2019年1月—2021年12月于蚌埠医学院第一附属医院整形烧伤科治疗的40例面中部皮肤肿瘤患者,根据术中切除肿瘤后遗留创面的大小及位置分为观察... 详细信息

目的探讨面中部皮肤肿瘤切除后采用面动脉穿支筋膜蒂皮瓣修复缺损的临床应用价值。方法选取2019年1月—2021年12月于蚌埠医学院第一附属医院整形烧伤科治疗的40例面中部皮肤肿瘤患者,根据术中切除肿瘤后遗留创面的大小及位置分为观察组和对照组,每组各20例,观察组行面动脉穿支筋膜蒂皮瓣修复术,而对照组行传统皮瓣修复术,比较2组患者皮瓣修复后皮瓣的色泽评分、美观度评分、功能评分、术后瘢痕宽度、瘢痕弹性、瘢痕的平整度、瘢痕颜色以及术后6个月患者的效果满意度。结果观察组患者术后6个月在皮瓣的色泽评价(7.54±0.17)、美观评价(7.85±1.17)以及功能评价(8.20±0.89)评分方面均高于对照组患者术后6个月在皮瓣的色泽评价(4.85±1.73)、美观评价(5.23±1.50)以及功能评价(6.00±0.93),均P<0.05;观察组患者在瘢痕宽度(0.40±0.13)、瘢痕弹性(0.33±0.12)以及瘢痕平整度(0.24±0.09)以及瘢痕颜色评分(0.20±0.06)方面低于对照组在瘢痕宽度(0.58±0.18)、瘢痕弹性(0.57±0.13)、瘢痕平整度(0.38±0.16)以及瘢痕颜色评分(0.36±0.08);观察组的总体满意度(95%)高于对照组(65%);差异均有统计学意义(P<0.05)。结论在面部皮肤肿瘤术后组织缺损皮瓣修复手术中,相较于传统的任意皮瓣修复术,面动脉穿支筋膜蒂皮瓣修复术可使患者在术后外形及功能方面获得更大的满意度,具有较高的临床应用价值。

关键词：面动脉穿支筋膜蒂皮瓣肿瘤组织缺损

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Modeling and Analysis of the Reliability of Machining Process of Diesel Engine Blocks Based on PFMECA

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IEEE ACCESS 2019年 7卷 124759-124773页

作者： Tian, Guizhong zhang, Wei Ma, Zhengyu Zhou, Honggen Jing, xuwen Li, Guochao Jiangsu Univ Sci & Technol Sch Mech Engn Zhenjiang 212003 Jiangsu Peoples R China Jiangsu Univ Sci & Technol Jiangsu Prov Key Lab Adv Mfg Marine Mech Equipmen Zhenjiang 212003 Jiangsu Peoples R China

Due to its difficulty in maintenance, the diesel engine have special requirements on process reliability of the engine block, which is one of the most important and hard-to-machining components of the engine, and will directly affects the performance and service life of the engine. With continuous improvements to the engine quality, the process reliability of the engine block have become more and more important. However, the previous researches mainly focus on the reliability of products, machine tools, or cutting tools, while the researches on the reliability of machining process, which lead to unstable quality of the machined engine block, have been little discussed. Therefore, this paper proposes an integrated method to analyze the process reliability of DEB (Diesel Engine Blocks). First, the reliability model of the DEB machining process is established by using reliability block diagram method. The model is mainly concerned with the process reliability and error-free judgment probability of the key features of DEB, which is deduced by using the PFMECA (Process Failure Mode, Effects and Criticality Analysis) method. Then, the response surface and FEM method is used to establish a mathematical model for the key features and its key influencing factors, and the process reliability of the key features is evaluated by Monte Carlo simulation. The reliability of the machining process is evaluated by substituting the process reliability of the key features into the reliability model of the DEB machining process. The method is applied to evaluate the reliability of the machining process of a certain type of DEB and solves the problem that the actual machining data are insufficient for reliability evaluation.

关键词： Process reliability PFMECA FEM Monte Carlo simulation

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Effect of Pre-Coagulation on Catalytic Ozonation in the Tertiary Treatment of Coking Wastewater: Kinetic and Ozone Consumption Analysis

SSRN

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SSRN 2022年

作者： Wang, Hao zhang, Siyu He, Can Yuan, Run Wu, Xu Guo, Shaoqing He, xuwen Van Hulle, Stijn W.H. Beijing100083 China LIWET Department of Green Chemistry and Technology Ghent University Campus Kortrijk Graaf Karel De Goedelaan 5 KortrijkB-8500 Belgium KU Leuven Department of Chemical Engineering PET Lab J. De Nayerlaan 5 Sint-Katelijne-WaverB-2860 Belgium

The ozone-based advanced oxidation process in wastewater effluent degrades refractory organics efficiently and significantly. Nevertheless, high energy consumption is a challenge that hinders its widespread application. In this work, the pre-coagulation enhanced catalytic ozonation process for the treatment of biologically treated coking wastewater (BTCW) was investigated. The chemical oxygen demand (COD) removal results indicated that catalytic ozonation has an inadequate removal effect on the organic pollutants in BTCW. Moreover, the two-stage degradation occurred in the COD ozonation process, of which the slow reaction rate in the second stage was the main reason that limited its overall effect. The pre-coagulation overcame the obstacle of the limited effect of catalytic ozonation treatment of BTCW because of its ability to remove hydrophobic organics. The combination of pre-coagulation and catalytic ozonation was significantly beneficial for reducing the COD content in BTCW and increased the COD removal of BTCW from 45% to 69%. There was a linear relationship between specific ozone consumption and ozone dosage regardless of whether BTCW was subjected to pre-coagulation. The fact that the slope of this linear relationship with pre-coagulation was much smaller than that without pre-coagulation. It indicates that pre-coagulation could significantly reduce ozone consumption. The primary role of pre-coagulation was to reduce ozone consumption considerably in the second stage of the ozonation process. The ozone consumption per unit mass of COD in the second stage reached 24.3 gO 3 /gCOD without pre-coagulation, while that was only 6.8 gO 3 /gCOD with pre-coagulation. © 2022, The Authors. All rights reserved.

关键词： Chemical oxygen demand

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Occurrence, fate and impact of steroidal estrogens and xenoestrogens in plants: A review

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Journal of Environmental Management 2025年 389卷

作者： Junyue Wang Yang Chen Zikang zhang Jiayi Yan Wanting Ling xuwen Chen Yanzheng Gao Institute of Organic Contaminant Control and Soil Remediation College of Resources and Environmental Sciences Nanjing Agricultural University Nanjing 210095 China

Estrogens encompass both steroidal estrogens and xenoestrogens. Natural steroidal estrogens, as hormones secreted by animals, regulate physiological activities within organisms. Synthetic steroidal estrogens and xenoestrogens are also widely utilized as pharmaceutical agents and industrial materials. Globally, due to the incomplete reduction of estrogens during the aerobic composting process, most commercially available manure-based fertilizers contain residual estrogens. The application of these fertilizers and wastewater irrigation lead to the migration of estrogens into agricultural soil. Exposure to estrogen concentrations exceeding safety levels can severely disrupt the reproductive, nervous, and endocrine systems. As emerging contaminants, it is imperative to in investigate the behavior of estrogen in any environment. As part of the agricultural system, plants influence the fate of estrogens in farm field through uptake and accumulation, especially in vegetables and crops closely related to human health. The transport and translocation of estrogens throughout the entire growth cycle of plants relate to the flow of estrogens in ecosystems and biological threats. Therefore, it is urgent to elucidate the mechanisms by which plants uptake, transport, and translocation estrogens. Additionally, the impact of estrogens on plant physiology and biochemistry is worth investigating. Unlike other pollutants, the effect of estrogens on plant growth is dose-dependent. Therefore, while addressing estrogen pollution, Finally, this paper proposes some new future research needs for estrogens in plants.

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