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宽度和载荷对沟槽地表火蔓延特性的影响

湖北理工学院学报 2024年第2期40卷 15-21页

作者：丁超马双阳肖康尉锦超刘思雨焦艳安徽建筑大学环境与能源工程学院安徽合肥230601

为探究燃料床的宽度和燃料载荷对沟槽地表火蔓延燃烧特性的影响,设计了宽度分别为10、15、20 cm的燃料槽,分析了不同宽度和载荷条件下地表火蔓延速度、火焰高度和夹角、质量损失、滞留时间等燃烧特性的变化规律。结果表明,载荷越高,燃... 详细信息

为探究燃料床的宽度和燃料载荷对沟槽地表火蔓延燃烧特性的影响,设计了宽度分别为10、15、20 cm的燃料槽,分析了不同宽度和载荷条件下地表火蔓延速度、火焰高度和夹角、质量损失、滞留时间等燃烧特性的变化规律。结果表明,载荷越高,燃料的质量损失速率越大;相同载荷下,沟槽宽度越小,燃料消耗率越高。燃料槽侧壁使卷吸受限,火线成线性。火蔓延速率随宽度增加而增大,火焰高度随宽度和载荷增大而增大。在高载荷的情况下,火蔓延过程中产生大量可燃烟气,火焰形成向火蔓延方向的火焰夹角。

关键词：地表火燃料床宽度载荷火蔓延速率质量损失

Origin of superior pseudocapacitive mechanism of transition metal nitrides

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Journal of Energy Chemistry 2022年第6期31卷 561-568,I0016页

作者： chao Huang Ping Qin Dan Li Qingdong Ruan hao Song Liangliang Liu Yuzheng Wu Yinghe Ma Qingwei Li Kaifu Huo Paul K.Chu Department of Physics Department of Materials Science and Engineeringand Department of Biomedical EngineeringCity University of Hong KongHong Kong 999077China Department of Physics Hong Kong Baptist University(HKBU)Kowloon TongHong Kong 999077China The State Key Laboratory of Refractories and Metallurgy Institute of Advanced Materials and NanotechnologyWuhan University of Science and TechnologyWuhan 430081HubeiChina Wuhan National Laboratory for Optoelectronics(WNLO) School of Optical and Electronic InformationHuazhong University of Science and TechnologyWuhan 430074HubeiChina Advanced Research Institute for Multidisciplinary Science Qilu University of Technology(Shandong Academy of Sciences)Jinan 250307ShandongChina

Large-scale deployment of Internet of Things (IoT),a revolutionary innovation for a better world,is hampered by the limitation of energy *** transition metal nitride (TMN)-based micro-supercapacitors is a possible solution by taking advantage of the high conductivity,large specific capacitance,and large tap density of the ***,the pseudocapacitive storage mechanism of TMNs is still unclear consequently impeding the design of ***,the functions and mechanism of TMNs with different metal oxynitride (TMNO_(x)) concentrations in pseudocapacitive electrodes are investigated systematically by in situ Raman scattering,ex situ X-ray photoelectron spectroscopy,as well as ion isolation and substitution cyclic *** is found that the specific capacitances of TMNs depend on the TMNO_(x) concentrations and the N–M–O site is responsible for the large pseudocapacitance via the Faradic reaction between TMNO_(x) and OH^(-).Our study elucidates the mechanism pertaining to pseudocapacitive charge storage of TMNs and provides insights into the design and optimization of TMNO_(x) as well as other electrode materials for pseudocapacitors.

关键词： Internet of Things(IoT) Transition metal nitride(TMN) Metal oxynitride Supercapacitors

基于RTOPSIS的集成学习的综合评价研究

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计算机技术与发展 2024年第9期34卷 159-166页

作者：左胜勇冯立超陈学斌张春艳华北理工大学理学院河北省数据科学与应用重点实验室河北唐山063210

Stacking集成学习被认为是一种“黑盒”模型,采用多个基学习器的预测结果输入,通过元学习器来生成最终的预测。这种复杂性使得难以准确了解每个基学习器对最终结果的贡献。为解决此问题,该文提出了RTOPSIS方法。该方法结合了灰色关联度... 详细信息

Stacking集成学习被认为是一种“黑盒”模型,采用多个基学习器的预测结果输入,通过元学习器来生成最终的预测。这种复杂性使得难以准确了解每个基学习器对最终结果的贡献。为解决此问题,该文提出了RTOPSIS方法。该方法结合了灰色关联度系数计算和优劣解距离方法,为决策者提供了一种有效的工具,以清晰地揭示每个基学习器在Stacking模型中对最终结果的贡献程度。具体而言:采用RTOPSIS算法替代传统的判别方法,综合考虑基学习器和元学习器之间的关系,提供更客观和合理的模型排名结果;应用灰色关联分析算法计算各个基学习器在Stacking模型中的权重,并反映其对最终结果的贡献程度。实验证明,相对于单一指标如Accuracy、AUC和F1-score等,在Stacking模型综合评价中,RTOPSIS算法为该文6个模型提供了更为合适的排名,且与经典优劣解距离算法的排序结果基本一致。因此,RTOPSIS算法在Stacking模型评价中展现出更全面的评价效果。

关键词：优劣解距离灰色关联度权重 Stacking模型综合评价

Rapidly growing extensive polypoid endometriosis after gonadotropin-releasing hormone agonist discontinuation:A case report

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世界临床病例杂志 2023年第27期11卷 6631-6639页

作者： De-Yu Zhang chao Peng yan Huang Jia-Chen Cao Ying-Fang Zhou Department of Obstetrics and Gynecology Peking University First HospitalBeijing 100034China Department of Pathology Beijing Chao-yang HospitalCapital Medical UniversityBeijing 100020China

BACKGROUND Polypoid endometriosis(PEM)is a rare and unique type of *** date,no article has provided a systematic report of this *** current article provides a complete report on rare PEM based on ultrasound,magnetic resonance imaging,intraoperative findings and postoperative pathology *** SUMMARY A 38-year-old female patient was admitted to our hospital after complaining of“vague pain in the right lower quadrant with an aggravated menstrual period for 8 mo”.The patient underwent laparoscopic exploratory surgery on January 7,*** postoperative pathology revealed extensive *** PEM is a type of endometriosis that is a benign disease but has biological properties similar to malignant tumours.

关键词： Polypoid endometriosis Ultrasonography Magnetic resonance imaging Case report

Drip Irrigation Scheduling for Tomato Grown in Solar Greenhouse Based on Pan Evaporation in North China Plain

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Journal of Integrative Agriculture 2013年第3期12卷 520-531页

作者： LIU hao DUAN Ai-wang LI Fu-sheng SUN Jing-sheng WANG yan-cong SUN Chi-tao Key Laboratory for Crop Water Requirement and Regulation of Ministry of Agriculture Farmland Irrigation Research Institute Chinese Academy of Agricultural Sciences (CAAS) College of Agriculture Guangxi University

This study has investigated the suitable drip irrigation scheduling for tomato grown in solar greenhouse based on 20-cm pan evaporation （Epan） in North China Plain. Irrigation treatments included three irrigation frequencies （11 10, 12 20 and 13 30 mm, and irrigation interval of 2-6 d for 11, 4-9 d for 12 and 8-12 d for 13） based on accumulated pan evaporation （Epan）, and four plant-pan coefficients （Kcp1 0.5, Kcp2 0.7, Kcp3 0.9 and Kcp4 1.1）. Results indicate that total irrigation amount, seasonal crop evapotranspiration （ET） and tomato yield （Y） were 185.1-365.8 mm, 249.1-388.0 mm and 99.6-151.8 t ha^-1, respectively. Irrigation frequency and amount increased the yield, and second-degree polynomial relationship was found between Y and ET （R2=0.8671）. Irrigation frequency did not increase mean fruit weight, diameter and length significantly but increased fruit number, total soluble solids content （TSS）, TSS yield, fruit firmness and water use efficiency （WUE） and irrigation WUE （IWUE） significantly. Irrigation amount increased external quality of tomato but reduced TSS content, TSS yield, fruit firmness, WUE and IWUE significantly. Kep3 and gep4 treatments had the highest fruit yield, but Kep2 and Kep3 treatments had the highest WUE. 11Kcp3 treatment （irrigation interval of 2-6 d, and Kop=0.9） had higher IWUE, WUE, external quality, yield, and TSS yield, so it is recommended as the suitable irrigation scheduling for tomato grown in solar greenhouse in North China Plain.

关键词： drip irrigation fruit quality irrigation scheduling tomato water use efficiency yield

In-situ investigation on the microstructure evolution of Mg-2Gd alloys during the V-bending tests

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Journal of Materials Science & Technology 2022年第36期131卷 167-176页

作者： chao He Jianxin Zhou yan yang Bin Jiang Ming Yuan Zhihua Dong yanfu Chai Weijun He Guangsheng Huang Dingfei Zhang Fusheng Pan State Key Laboratory of Mechanical Transmissions College of Materials Science and EngineeringChongqing UniversitySha Zheng Street 174#Sha Ping Ba DistrictChongqing 400044China National Engineering Research Center for Magnesium Alloys Chongqing UniversityChongqing 400044China School of Mechanical and Electrical Engineering Shaoxing UniversityShaoxing 312000China School of Chemistry and Materials Science Hubei Engineering UniversityXiaogan 432000China

In this work,the in-situ observation of the microstructure in the Mg-2Gd(wt%)alloys during V-bending tests was *** microstructure and texture evolutions were characterized by the in-situ electron backscatter diffraction(EBSD),scanning electron microscopy(SEM)and the high-angle annular dark-field scanning transmission electron microscopy(HAADF-STEM)*** results revealed a unique microcracks nucleation mechanism in the Mg-Gd alloys compared with the traditional Mg alloy(AZ31 alloy).The microcrack was nucleated at the grain boundary for the Mg-2Gd alloy and in the intragranular for the AZ31 alloy during the bending *** difference mode between the Mg-Gd and the AZ31 alloys was mainly attributed to the more random topology of the grain boundary network,the lower grain boundary cohesion and the enhanced hinder ability for the dislocations due to the segregated Gd atoms in the Mg-Gd ***,the microcracks that had a large angleθwith the extruded direction(ED)in the Mg-Gd alloys were preferred nucleated since grain boundaries had the larger normal stress during the bending process.

关键词： Magnesium In-situ V-bending Microstructure Texture Microcracks

Recovery and separation of rare earth elements by molten salt electrolysis

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International Journal of Minerals,Metallurgy and Materials 2021年第6期28卷 899-914页

作者： Tai-qi Yin Yun Xue Yong-de yan Zhen-chao Ma Fu-qiu Ma Mi-lin Zhang Gui-ling Wang Min Qiu yantai Research Institute&Graduate School Harbin Engineering UniversityYantai 264006China College of Science Heihe UniversityHeihe 164300China Zhongkexin Engineering Consulting(Beijing)Co. LtdBeijing 100039China

With the increasing demand of rare earth metals in functional materials,recovery of rare earth elements(REEs)from secondary resources has become important for the green economy *** salt electrolysis has the advantages of low water consumption and low hazardous waste during REE *** review systematically summarizes the separation and electroextraction of REEs on various reactive electrodes in different molten *** also highlights the relationship between the formed alloy phases and electrodeposition parameters,including applied potential,current,and ion ***,the feasibility of using LiF–NaF–KF electrolyte to recover REEs is evaluated through thermodynamic *** related to REE separation/recovery the choice of electrolyte are discussed in detail to realize the low-energy and high current efficiency of practical applications.

关键词： rare earth element molten salt reactive electrode electrochemical separation

Effect of resveratrol in gestational diabetes mellitus and its complications

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World Journal of Diabetes 2023年第6期14卷 808-819页

作者： Hui-Zhong Ma Yuan Chen hao-hao Guo Jing Wang Xiu-Lan Xin yan-Cheng Li Yu-Feng Liu School of Pharmaceutical Sciences Liaoning UniversityShenyang 110036Liaoning ProvinceChina College of Bioengineering Beijing PolytechnicBeijing 100176China Department of Epidemiology University of FloridaGainesvilleFL 32608United States School of Pharmaceutical Sciences Natural Products Pharmaceutical Engineering Technology Research Center of Liaoning ProvinceLiaoning UniversityShenyang 110036Liaoning ProvinceChina

The incidence rate of diabetes in pregnancy is about 20%,and diabetes in pregnancy will have a long-term impact on the metabolic health of mothers and their *** may have elevated blood glucose,which may lead to blood pressure disease,kidney disease,decreased resistance and secondary infection during *** offspring may suffer from abnormal embryonic development,intrauterine growth restriction,obesity,autism,and other adverse ***(RSV)is a natural polyphenol compound,which is found in more than 70 plant species and their products,such as Polygonum cuspidatum,seeds of grapes,peanuts,blueberries,bilberries,and *** studies have shown that RSV has a potential beneficial effect on complex pregnancy,including improving the indicators of diabetes and pregnancy diabetes *** article has reviewed the molecular targets and signaling pathways of RSV,including AMP-activated protein kinase,mitogen-activated protein kinases,silent information regulator sirtuin 1,miR-23a-3p,reactive oxygen species,potassium channels and CX3C chemokine ligand 1,and the effect of RSV on gestational diabetes mellitus(GDM)and its *** improves the indicators of GDM by improving glucose metabolism and insulin tolerance,regulating blood lipids and plasma adipokines,and modulating embryonic oxidative stress and ***,RSV can ameliorate the GDM complications by reducing oxidative stress,reducing the effects on placentation,reducing the adverse effects on embryonic development,reducing offspring's healthy risk,and so ***,this review is of great significance for providing more options and possibilities for further research on medication of gestational diabetes.

关键词： Gestational diabetes mellitus Complication Resveratrol Polyphenol Pathway

Volatiles of Shiraia fruiting body-associated Pseudomonas putida No.24 stimulate fungal hypocrellin production

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Synthetic and Systems Biotechnology 2023年第3期8卷 427-436页

作者： Rui Xu Qun yan Huang Wen hao Shen Xin Ping Li Li Ping Zheng Jian Wen Wang College of Pharmaceutical Sciences Soochow UniversitySuzhou215123China Department of Horticultural Sciences Soochow UniversitySuzhou215123China

Hypocrellins are major bioactive perylenequinones from Shiraia fruiting bodies and have been developed as efficient photosensitizers for photodynamic *** is the second dominant genus inside Shiraia fruiting bodies,but with less known actions on the host *** this work,the effects of bacterial volatiles from the Shiraia-associated Pseudomonas on fungal hypocrellin production were *** putida No.24 was the most active to promote significantly accumulation of Shiraia perylenequinones including hypocrellin A(HA),HC,elsinochrome A(EA)and *** analysis of the emitted volatiles revealed dimethyl disulfide as one of active compounds to promote fungal hypocrellin *** bacterial volatiles induced an apoptosis in Shiraia hyphal cell,which was associated with the generation of reactive oxygen species(ROS).ROS generation was proved to mediate the volatile-induced membrane permeability and up-regulation of gene expressions for hypocrellin *** the submerged volatile co-culture,the bacterial volatiles stimulated not only HA content in mycelia,but also HA secretion into the medium,leading to the enhanced HA production to 249.85 mg/L,about 2.07-fold over the *** is the first report on the regulation of Pseudomonas volatiles on fungal perylenequinone *** findings could be helpful to understand the roles of bacterial volatiles in fruiting bodies and also provide new elicitation method using bacterial volatiles to stimulate fungal secondary metabolite production.

关键词： Shiraia Pseudomonas putida Volatiles Reactive oxygen species Hypocrellins Elicitation