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Optimization of nitrogen fertilizer rate under integrated rice management in a hilly area of Southwest China

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Pedosphere 2020年第6期30卷 759-768页

作者： yujiao dong Jiang YUAN Guangbin ZHANG Jing MA Padilla HILARIO Xuejun LIU Shihua LU Soil and Fertilizer Research Institute/Key Laboratory of Agricultural Environment in Southwest Mountain Areas of Ministry of Agriculture and Rural Affairs Sichuan Academy of Agricultural SciencesChengdu 610066China State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China Kadoorie Farm and Botanic Garden Hong Kong 999077China Key Laboratory of Plant-Soil Interactions of Ministry of Education College of Resources and Environmental SciencesChina Agricultural UniversityBeijing 100193China

China has the world’s highest nitrogen(N)application rate,and the lowest N use efficiency(NUE).With the crop yield increasing,serious N pollution is also *** in-situ field experiment(2011–2015)was conducted to examine the effects of three N levels,0(i.e.,no fertilizer N addition to soil),120,and 180 kg N ha-1,using integrated rice management(IRM).We investigated rice yield,aboveground N uptake,and soil surface N budget in a hilly region of Southwest *** to traditional rice management(TRM),IRM integrated raised beds,plastic mulch,furrow irrigation,and triangular transplanting,which significantly improved rice grain yield,straw biomass,aboveground N uptake,and *** rice management significantly improved 15N recovery efficiency(by 10%)and significantly reduced the ratio of potential15N loss(by 8%–12%).Among all treatments,the 120 kg N ha-1 level under IRM achieved the highest 15N recovery efficiency(32%)and 15N residual efficiency(29%),with the lowest 15N loss ratio(39%).After rice harvest,the residual N fertilizer did not achieve a full replenishment of soil N consumption,as the replenishing effect was insufficient(ranging from-31 to-49 kg N ha-1).Furthermore,soil surface N budget showed a surplus(69–146 kg N ha-1)under all treatments,and the N surplus was lower under IRM than *** results indicate IRM as a reliable and stable method for high rice yield and high NUE,while exerting a minor risk of N *** the hilly area of Southwest China,the optimized N fertilizer application rate under IRM was found to be 100–150 kg N ha-1.

关键词： N input N output ^(15)N recovery efficiency N surplus N use efficiency plastic mulch soil surface N budget

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辅助剂环氧大豆油对软质PVC性能的影响

山东化工 2024年第5期53卷 38-40页

作者：董玉娇李进何坤陆伟韦余康帝高力装饰材料(江苏)有限公司江苏镇江212000

通过热稳定分析研究了环氧大豆油作为辅助热稳定剂对软质PVC性能的影响。结果表明,当环氧大豆油单独使用时,不能改善PVC体系的热稳定性,软质PVC很快变色。当环氧大豆油与软质PVC的主热稳定剂钙锌复合稳定剂并用时,能发生良好的协同作用... 详细信息

通过热稳定分析研究了环氧大豆油作为辅助热稳定剂对软质PVC性能的影响。结果表明,当环氧大豆油单独使用时,不能改善PVC体系的热稳定性,软质PVC很快变色。当环氧大豆油与软质PVC的主热稳定剂钙锌复合稳定剂并用时,能发生良好的协同作用,使软质PVC具有良好的热稳定性。同时,研究了不同用量的环氧大豆油对软质PVC透明度、白度和力学性能的影响,环氧大豆油的用量不应高于2份,否则软质PVC的透明度、白度和力学性能下降。

关键词：环氧大豆油聚氯乙烯热稳定性透明度力学性能

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Frontiers of Computer Science 2024年第3期18卷 227-229页

作者： Qianwen GOU Yunwei dong yujiao WU Qiao KE School of Computer Science Northwestern Polytechnical UniversityXi’an 710129China School of Mathematics and Statistics Northwestern Polytechnical UniversityXi’an 710129China

1 Introduction Program retrieval aims to enable the flexible retrieval of program snippets based on a natural language query,significantly accelerating software development *** shows that over 60%of developers perform program retrieval daily[1].Recent years have witnessed an increasing interest in deep learning-based program retrieval,which aims to construct embedding representations for program snippets and ***,the distribution of natural languages and programs is inconsistent,resulting in a semantic *** critical challenge is to bridge the semantic gap between the programming language and natural language,and accurately measure their similarity.

关键词： semantic similarity retrieval

Integrated rice management simultaneously improves rice yield and nitrogen use efficiency in various paddy fields

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Pedosphere 2020年第6期30卷 863-873页

作者： yujiao dong Fanwen ZENG Jiang YUAN Guangbin ZHANG Yuanxue CHEN Xuejun LIU Padilla HILARIO Tusheng REN Shihua LU College of Resources and Environmental Sciences China Agricultural UniversityBeijing 100193China Soil and Fertilizer Institute Sichuan Academy of Agricultural SciencesChengdu 610066China Bureau of Agriculture in Shehong County Suining CitySichuan ProvinceShehong 629200China State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China Sichuan Agricultural University Wenjiang 611130China Kadoorie Farm and Botanic Garden Hong Kong 999077China

The hilly area of Southwest China is a typical rice production area which is limited by seasonal droughts and low temperature in the early rice growth period.A field experiment was conducted on three typical paddy fields(low-lying paddy field,medium-elevation paddy field,and upland paddy field)in this ***(N)treatment(180 kg N ha-1 year-1)was compared to a control treatment(0 kg N ha-1 year-1)to evaluate the effects of integrated rice management(IRM)on rice growth,grain yield,and N *** rice management integrated raised beds containing plastic mulch,furrow irrigation,and triangular *** comparison to traditional rice management(TRM),IRM promoted rice tiller development,with 7–13 more tillers per cluster at the maximum tillering stage and 1–6 more tillers per cluster at the end of tillering *** rice management significantly increased the rice aboveground biomass by 34.4%–109.0%in different growth periods and the aboveground N uptake by 25.3%–159.0%.Number of productive tillers significantly increased by 33.0%,resulting in a 33.0%increase in grain yield and 8.0%improvement of N use efficiency(NUE).Grain yields were significantly increased in all three paddy fields assessed,with IRM being the most important factor for grain yield and productive tiller *** of paddy field type and N level on N uptake by aboveground plants were reflected in the rice reproductive growth period,with the effects of IRM more striking due to the dry climate *** conclusion,IRM simultaneously improved rice yield and NUE,presenting a valuable rice management technique in the paddy fields assessed.

关键词： grain yield hilly area nitrogen uptake paddy field type plastic mulch traditional rice management

Alleviatory effect of isoquercetin on benign prostatic hyperplasia via IGF-1/PI3K/Akt/mTOR pathway

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Food Science and Human Wellness 2024年第3期13卷 1698-1710页

作者： Young-Jin Choi Meiqi Fan Nishala Erandi Wedamulla yujiao Tang Eun-Kyung Kim Department of Food Science and Nutrition Dong-A UniversityBusan 49315Republic of Korea Center for Silver-targeted Biomaterials Brain Busan 21 Plus programDong-A UniversityBusan 49315Republic of Korea Department of Health Sciences the Graduate School of Dong-A UniversityBusan 49315Republic of Korea Division of Food Bioscience College of Biomedical and Health SciencesKonkuk UniversityChungju 27478Republic of Korea Department of Export Agriculture Faculty of Animal Science and Export AgricultureUva Wellassa UniversityBadulla 90000Sri Lanka School of Bio-Science and Food Engineering Changchun University of Science and TechnologyChangchun 130600China Nutritional Education Major Graduate School of EducationDong-A UniversityBusan 49315Republic of Korea Nutrinomics Lab.Co. Ltd.Busan 49315Republic of Korea

We evaluated the effect of isoquercetin(quercetin-O-3-glucoside-quercetin,IQ)as a functional component of Abeliophyllum disistichum Nakai ethanol extract(ADLE)on prostate cell proliferation and apoptosis and its effects on the IGF-1/PI3K/Akt/mTOR pathway in benign prostatic hyperplasia(BPH).Metabolites in ADLE were analyzed using UHPLC-qTOF-MS and *** was orally administered(1 or 10 mg/kg)to a testosterone propionate-induced BPH rat model,and its effects on the prostate weight were *** effect of IQ on androgen receptor(AR)signaling was analyzed in LNCaP *** IGF-1 and IQ affect the IGF-1/PI3K/Akt/mTOR pathway in BPH-1 cells was also *** metabolites in ADLE were identified and quantified,which confirmed that ADLE contained abundant IQ(20.88 mg/g).IQ significantly reduced the prostate size in a concentration-dependent manner in a BPH rat model,and significantly decreased the expression of AR signaling factors in the rat prostate tissue and LNCaP cells in a concentration-dependent *** also inhibited the PI3K/AKT/mTOR pathway activated by IGF-1 treatment in BPH-1 *** BPH-1 cells,IQ led to G0/G1 arrest and suppressed the expression of proliferation factors while inducing ***,IQ shows potential for use as a pharmaceutical and nutraceutical for BPH.

关键词： Isoquercetin Benign prostatic hyperplasia Androgen receptor signaling PI3K/Akt/mtor pathway

Clinical efficacy and identification of factors confer resistance to afatinib(tyrosine kinase inhibitor)in EGFR-overexpressing esophageal squamous cell carcinoma

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Signal Transduction and Targeted Therapy 2024年第7期9卷 3130-3140页

作者： Yanni Wang Chang Liu Huan Chen Xi Jiao yujiao Wang Yanshuo Cao Jian Li Xiaotian Zhang Yu Sun Na Zhuo Fengxiao dong Mengting Gao Fengyuan Wang Liyuan dong Jifang Gong Tianqi Sun Wei Zhu Henghui Zhang Lin Shen Zhihao Lu Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education/Beijing) Department of Gastrointestinal OncologyPeking University Cancer Hospital and InstituteBeijingChina Genecast Biotechnology Co. LtdWuxiPR China State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers Beijing Key Laboratory of Carcinogenesis and Translational ResearchDepartment of Gastrointestinal OncologyPeking University Cancer Hospital and InstituteBeijingChina Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education) Department of PathologyPeking University Cancer Hospital and InstituteBeijingChina Precision Scientific(Beijing)Co. Ltd.BeijingChina Generulor Company Bio-X Lab ZhuhaiGuangdongChina Biomedical Innovation Center Beijing Shijitan HospitalCapital Medical UniversityBeijingChina Beijing Key Laboratory for Therapeutic Cancer Vaccines Beijing Shijitan HospitalCapital Medical UniversityBeijingChina

Epidermal growth factor receptor(EGFR)is reportedly overexpressed in most esophageal squamous cell carcinoma(ESCC)patients,but anti-EGFR treatments offer limited survival *** preclinical data showed the promising antitumor activity of afatinib in EGFR-overexpressing *** proof-of-concept,phase II trial assessed the efficacy and safety of afatinib in pretreated metastatic ESCC patients(n=41)with EGFR overexpression(NCT03940976).The study met its primary endpoint,with a confirmed objective response rate(ORR)of 39%in 38 efficacy-evaluable patients and a median overall survival of 7.8 months,with a manageable toxicity *** analysis of pretreatment tumors revealed that neurotrophic receptor tyrosine kinase 2(NTRK2)was negatively associated with afatinib sensitivity and might serve as a predictive biomarker,irrespective of EGFR ***,knocking down or inhibiting NTRK2 sensitized ESCC cells to afatinib *** study provides novel findings on the molecular factors underlying afatinib resistance and indicates that afatinib has the potential to become an important treatment for metastatic ESCC patients.

关键词： esophageal squamous expressing

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基于数值模拟的液滴式微混合器性能研究

北京化工大学学报（自然科学版） 2016年第5期43卷 22-26页

作者：张宇姣董力群张亚军庄俭北京化工大学机电工程学院北京100029

基于有限体积法,建立了直通道、V形通道和U形通道3种不同结构的液滴式微混合器模型,并采用流体体积函数(VOF)和用户自定义标量方程(UDS)模型模拟微混合器的混合过程。模拟结果表明,在经过10 ms混合之后V形微通道的混合效果最好,混合度高... 详细信息

基于有限体积法,建立了直通道、V形通道和U形通道3种不同结构的液滴式微混合器模型,并采用流体体积函数(VOF)和用户自定义标量方程(UDS)模型模拟微混合器的混合过程。模拟结果表明,在经过10 ms混合之后V形微通道的混合效果最好,混合度高达99.5%,但其单位长度消耗的能量最多;U形和V形微混合器均利用弯道对液滴内部造成扰动,从而促进混合并且明显提升了混合效率;直通道微混合器仅靠扩散作用进行混合,混合效率低。

关键词：液滴 user defined scalar(UDS) 微混合器

Current Situation and Suggestions on the Development of Diagnosis Related Group(DRG)Policy in China

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Asian Journal of Social Pharmacy 2022年第4期17卷 367-375页

作者： dong yujiao Wang Shuling School of Business Administration Shenyang Pharmaceutical UniversityShenyang 110016China

Objective To implement the national diagnosis related group(DRG)policy smoothly,and gradually move towards value medicine and fine management,some suggestions are put forward for improving medical service efficiency,saving medical insurance fund,and reducing the burden of patients,so as to realize the win-win situation of medical insurance and *** Based on the experience of the United States,Australia,and Germany,the policy implementation background and development process in China were *** advantages and disadvantages of single disease payment method,disease score payment method,and diagnosis related groups-prospective payment system(DRG-PPS)method were compared,and then the problems were found *** and Conclusion In view of the imperfect information system,lack of professional talents,and uneven progress of each pilot,it is proposed that relevant departments should pay more attention to the construction and improvement of coding and other information systems,cultivate professional talents,promote the reform of DRG payment technology specification and grouping technology combined with national pilot project,thus enhancing the application and in-depth development of DRG policy in China.

关键词： diagnosis related group(DRG) DRG policy DRG payment system

冬季水分管理和水稻覆膜栽培对川中丘陵地区冬水田CH_4排放的影响

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生态学报 2016年第4期36卷 1095-1103页

作者：张怡吕世华马静徐华袁江董瑜皎土壤与农业可持续发展国家重点实验室中国科学院南京土壤研究所南京210008 四川省农业科学院土壤肥料研究所成都610066 江苏农药检定所南京210036

采用静态箱-气相色谱法观测冬季水分管理和水稻覆膜栽培对川中丘陵地区冬水田全年的CH_4排放通量。试验设置持续淹水(CF)、冬季直接落干+稻季淹水(TF)与冬季覆膜落干+稻季覆膜(PM)3个处理。结果表明,冬季休闲期,CF、TF和PM处理CH_4排放... 详细信息

采用静态箱-气相色谱法观测冬季水分管理和水稻覆膜栽培对川中丘陵地区冬水田全年的CH_4排放通量。试验设置持续淹水(CF)、冬季直接落干+稻季淹水(TF)与冬季覆膜落干+稻季覆膜(PM)3个处理。结果表明,冬季休闲期,CF、TF和PM处理CH_4排放分别为16.1、1.4 g/m^2和2.7 g/m^2;水稻生长期,CF、TF和PM处理CH_4排放分别为57.7、27.7 g/m^2和13.5 g/m^2。相较于CF处理,TF与PM处理分别减少其全年CH_4排放60.6%和78.0%。TF与PM处理水稻生长期CH_4排放峰值分别较CF处理低33.0%和56.1%。休闲期,TF、PM处理厢面与厢沟区域CH_4排放与土壤温度显著正相关(P<0.05),与土壤氧化还原电位(土壤Eh)显著负相关(P<0.05),而CF处理CH_4排放仅与土壤温度显著正相关(P<0.05)。水稻生长期,CF处理CH_4排放与土壤温度显著正相关(P<0.05),与土壤Eh显著负相关(P<0.05),TF处理CH_4排放仅与土壤Eh显著负相关(P<0.05),PM处理厢沟CH_4排放与土壤Eh显著正相关(P<0.05)。各处理水稻生长期土壤可溶性有机碳含量(DOC)与微生物生物量碳含量(MBC)显著高于休闲期(P<0.05)。研究结果为进一步研究冬水田全年CH_4排放规律及寻求有效的减排措施提供数据支撑和科学依据。

关键词：冬水田(常年淹水的稻田) 水分管理覆膜栽培 CH4排放