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Journal of Landscape Research 2015年第4期7卷 25-28页

作者： CHEN Qi wang zhousuo ZHU Zhanbin Yangling Vocational & Technical College

Based on the overall planning of environmental cultural construction of Yangling Vocational & Technical College and the college–enterprise co-construction of Doucun Farm, this paper combined environmental cultural reformation inside and outside the college and reform of off-campus teaching experiment farm in view of outstanding agricultural characteristics of the bioengineering branch, with environmental health preservation as the fundamental goal and "health-preserving agriculture" as the link. In addition, four major characteristic landscape frameworks of "point, line, surface, and body" were established, and the effective construction approaches of health-preserving environmental cultural landscapes in vocational colleges were explored.

关键词： Bioengineering Branch Health-preserving agriculture Environmental cultural construction

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农村公共产品供给及模式创新研究

陕西农业科学 2005年第3期51卷 111-113页

作者：王周锁西北农林科技大学经济管理学院

农村公共产品是指由范围不同的农村居民消费、享用的,具有'非排它性'和'非竞争性'的各类公共产品和公共服务.具有弱替代性、外部性、规模经济性、成本集聚性、多样性、层次性、分散性特征.从农村发展的现实情况和根据在消费过程中的不... 详细信息

农村公共产品是指由范围不同的农村居民消费、享用的,具有'非排它性'和'非竞争性'的各类公共产品和公共服务.具有弱替代性、外部性、规模经济性、成本集聚性、多样性、层次性、分散性特征.从农村发展的现实情况和根据在消费过程中的不同性质看,又可区分为纯公共产品和准公共产品(混合产品).农村纯公共产品,应当由政府免费提供的产品,其典型的有:农村基层政府、村组织的行政服务、农村综合发展规划、农村信息系统、农业基础科学研究及技术推广、生态环境建设和保护、大江大河治理、农业和农村基础设施建设、农村抗灾救灾、农村公共卫生防疫、农村扶贫开发、社会治安等.农村准公共产品,是指介于纯公共产品和私人产品之间,在消费过程中具有不完全非竞争性和非排他性的产品.主要包括:在性质上近乎纯公共产品的准公共产品,如农村基础教育、农村医疗救助、农村科技文化、供电、供水、农业科技推广、农村社会保障等.

关键词：农村公共产品供给模式创新组织领导财政投入农村合作医疗法制建设中国

基于个性化教育理念的高素质农民学历教育教学模式——以果树生产技术课程为例

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农业工程 2024年第3期14卷 137-140页

作者：张雯范学科王周锁杨凌职业技术学院生物工程学院陕西杨凌712100

全面推进乡村振兴,人才队伍是关键,如何培养扎得深、用得上、留得下的农业人才是高等职业院校的重要使命和责任。以高素质农业人才培养为目标,强调个性化教育培养,注重深化产教融合,针对高素质农民学历教育中存在的教学问题,探索构建适... 详细信息

全面推进乡村振兴,人才队伍是关键,如何培养扎得深、用得上、留得下的农业人才是高等职业院校的重要使命和责任。以高素质农业人才培养为目标,强调个性化教育培养,注重深化产教融合,针对高素质农民学历教育中存在的教学问题,探索构建适合高素质农民的个性化教学模式,为涉农高校开展高素质农民学历教育提供模式借鉴,助力农业农村现代化建设。

关键词：高素质农民个性化教育果树生产技术学历教育教学改革

利用传统节庆文化加强社会主义核心价值观建设——以杨凌职业技术学院“十大节庆”主题教育活动为例

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黄冈职业技术学院学报 2017年第1期19卷 61-64页

作者：孙承俊赵曼王周锁张迪杨凌职业技术学院陕西杨凌712100

将中华优秀传统节庆文化融入到培育和践行社会主义核心价值观教育的全过程,融入到学生思想政治教育工作的全过程,融入到校园文化建设的全过程,融入学生素质教育的全过程、融入到学团工作的全过程,使广大学生在弘扬和传承中华优秀传统文... 详细信息

将中华优秀传统节庆文化融入到培育和践行社会主义核心价值观教育的全过程,融入到学生思想政治教育工作的全过程,融入到校园文化建设的全过程,融入学生素质教育的全过程、融入到学团工作的全过程,使广大学生在弘扬和传承中华优秀传统文化中自觉践行社会主义核心价值观,达到内化于心、外化于行的效果。

关键词：中华传统节庆文化教育社会主义核心价值观研究与实践

Normal Contact Model for Elastic and Plastic Mechanics of Rough Surfaces

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Acta Mechanica Solida Sinica 2019年第2期32卷 148-159页

作者： Dong wang zhousuo Zhang Fan Jin Xuanhua Fan State Key Laboratory for Manufacturing and Systems Engineering School of Mechanical Engineering XVan Jiaotong University Xi'an 710049 China Institute of Systems Engineering China Academy of Engineering Physics Mianyang 621999 China

An elastic and plastic mechanical model is proposed to characterize the normal contact of rough surfaces. The contact process is considered as three separated contact regimes, i.e., the fully elastic, mixed elastic一plastic and fully plastic ones. The Hertzian elastic contact solutions and the classical fully plastic contact model of Abbott and Fires tone are used to model the contact behaviors of fully elastically deformed asperities and fully plastically deformed ones, respectively. For the mixed elastic-plastic regime, an improved Hermit interpolation method is applied to enforce the continuity and smoothness at the critical contact interference, and to decrease the interpolation waving effect by transforming the physical quantities of contact load into logarithmic coordinates. The contac t model of rough surfaces is formula ted by using the Greenwood and Williamson^ statistics analysis. Comparisons with the CEB, ZMC and KE models are then performed to examine the effects of plasticity index and mean separation. Agreeing well with the ZMC model, our results show that the total contact load of rough surfaces decreases with the increase in mean separation, and the difference between the prediction results of elastic models and the plastic ones also decreases, indicating that the contact behaviors mainly dominated by plastically deformed asperities have been changed to be controlled by elastically deformed ones. Larger plasticity index represents more plastically deformed asperities, inducing normal contact behaviors mainly dominated by plastic solutions.

关键词： Rough surfaces Elastic plastic Asperity contact Logarithm transformation Statistics analysis

Constraints on holographic QCD phase transitions from PTA observations

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 71-78页

作者： Song He Li Li Sai wang Shao-Jiang wang Center for Theoretical Physics and College of Physics Jilin University School of Physical Science and Technology Ningbo University Max Planck Institute for Gravitational Physics (Albert Einstein Institute) CAS Key Laboratory of Theoretical Physics Institute of Theoretical Physics Chinese Academy of Sciences School of Fundamental Physics and Mathematical Sciences Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of Sciences (UCAS) School of Physical Sciences University of Chinese Academy of Sciences (UCAS) Theoretical Physics Division Institute of High Energy Physics Chinese Academy of Sciences

The underlying physics of QCD phase transition in the early Universe remains largely unknown due to its strong-coupling nature during the quark-gluon plasma/hadron gas transition, yet a holographic model has been proposed to quantitatively fit the lattice QCD data while with its duration of the first-order phase transition(FoPT) left undetermined. At specific baryon chemical potential, the first-order QCD phase transition agrees with the observational constraint of baryon asymmetry. It, therefore, provides a scenario for phase transition gravitational waves(GWs) within the standard model of particle physics. If these background GWs could contribute dominantly to the recently claimed common-spectrum red noise from pulsar timing array(PTA) observations, the duration of this FoPT can be well constrained, and the associated primordial black holes are still allowed by current observations.

关键词： pulsar timing array QCD phase transition gravitational waves primordial black holes

Rational modulation of fluorophosphate cathode by anionic groups to reduce the polarization behavior for fast-charging sodium-ion batteries

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Journal of Energy Chemistry 2025年第1期100卷 509-521页

作者： Xinyuan wang Fan Zhang Xingyu Zhou Qian wang Changyu Liu Yangyang Liu Hui wang Xiaojie Liu Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science Northwest University

Na3V2（PO4）2O2F （VP） is recognized as a promising cathode material for sodium-ion batteries due to its stable structural framework and high specific *** functional theory （DFT） and finite element simulations show that incorporating SO42-into VP decreases its band gap,lowers the migration energy barrier,and ensures a uniform Na+concentration gradient and stress distribution during charge and discharge ***,the average Na+diffusion coefficient of Na3V2（PO4）1.95（SO4）0.05O2F（VPS-1） is roughly double that of VP,leading to enhanced rate capability (80 C,75.5 mAh g-1) and cycling stability (111.0 mAh g-1capacity after 1000 cycles at 10 C current density) for ***-1 exhibits outstanding fast-charging capabilities,achieving an 80%state of charge in just 8.1 *** assembled VPS-1//SbSn/NPC full cell demonstrated stable cycling over 200 cycles at a high 5 C current,maintaining an average coulombic efficiency of 95.35%.

关键词： Anionic group modulation Polarization behavior Fast-charging Sodium-ion battery Fluorophosphate Cathode

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不同年龄级别皂荚树土壤肥力的综合评价

贵州农业科学 2023年第10期51卷 30-38页

作者：余鸽陈思慧王周锁龙凤来郑健刘炼红杨凌职业技术学院生态环境工程分院陕西杨凌712100 西安市鄠邑区森林资源管理中心陕西鄠邑710300 西安市林木种苗工作站陕西鄠邑710300

【目的】探明不同年龄级别皂荚树的土壤肥力状况,并对其土壤质量进行综合评价,为制定适宜的古树保护策略提供科学依据。【方法】以西安市鄠邑区不同年龄级别皂荚树树冠范围内0~40 cm土壤为研究对象,采用野外调查与室内分析相结合的方法... 详细信息

【目的】探明不同年龄级别皂荚树的土壤肥力状况,并对其土壤质量进行综合评价,为制定适宜的古树保护策略提供科学依据。【方法】以西安市鄠邑区不同年龄级别皂荚树树冠范围内0~40 cm土壤为研究对象,采用野外调查与室内分析相结合的方法,测定土壤pH、电导率(EC)、容重(BD)、有机质(OM)、全氮(TN)、全磷(TP)、全钾(TK)、碱解氮(AN)、有效磷(AP)和速效钾(AK)含量,并运用主成分分析法对不同年龄级别皂荚树土壤质量进行综合评价。【结果】鄠邑区皂荚树土壤pH为8.03~8.88,属碱性土壤;不同年龄级别皂荚树土壤的TK含量差异均不显著;土壤BD依次为二级古树>一级古树>非古树>三级古树;不同年龄级别皂荚树土壤的EC值、OM、TN、TP、AN、AP和AK含量表现出不同程度差异,其中,非古树土壤各肥力指标含量均最低,随着树龄增加,三级古树各指标含量增加至最大,除TP和AP外,其余指标含量均显著高于一级古树。以全国第二次土壤普查分类标准为依据,皂荚树土壤TK含量均为三级标准,属中上水平;AN含量均为四级及以下标准,属中低水平;古皂荚树土壤TP、AP、AK、OM和TN整体含量较高,均为三级及以上标准,属中高水平;非古皂荚树土壤各指标含量较低,均为四级及以下标准,属中低水平。皂荚树土壤综合肥力依次为三级古树(0.771)>二级古树(0.591)>一级古树(0.584)>非古树(0.281)。【结论】鄠邑区不同年龄古皂荚树的土壤肥力呈较大差异,其中,三级古皂荚树土壤肥力优于二级和一级,古皂荚树土壤肥力优于非古皂荚树,可实行分级养护,并通过增施有机质改良土壤,提高碱解氮含量。

关键词：皂荚树古树土壤肥力综合评价隶属度函数主成分分析

Role of iron ore in enhancing gasification of iron coke:Structural evolution,influence mechanism and kinetic analysis

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 58-69页

作者： Jie wang Wei wang Xuheng Chen Junfang Bao Qiuyue Hao Heng Zheng Runsheng Xu School of Chemistry and Materials Science Hubei Engineering UniversityXiaogan 432000China Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education Wuhan University of Science and TechnologyWuhan 430081China Institue of Ironmaking Technology Baosteel Central Research InstituteShanghai 201999China State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

The utilization of iron coke provides a green pathway for low-carbon *** uncover the influence mechanism of iron ore on the behavior and kinetics of iron coke gasification,the effect of iron ore on the microstructure of iron coke was ***,a comparative study of the gasification reactions between iron coke and coke was conducted through non-isothermal thermogravimetric *** findings indicate that compared to coke,iron coke exhibits an augmentation in micropores and specific surface area,and the micropores further extend and *** provides more adsorption sites for CO_(2) molecules during the gasification process,resulting in a reduction in the initial gasification temperature of iron *** the heating rate in non-isothermal gasification can enhance the reactivity of iron *** metallic iron reduced from iron ore is embedded in the carbon matrix,reducing the orderliness of the carbon structure,which is primarily responsible for the heightened reactivity of the carbon *** kinetic study indicates that the random pore model can effectively represent the gasification process of iron coke due to its rich pore ***,as the proportion of iron ore increases,the activation energy for the carbon gasification gradually decreases,from 246.2 kJ/mol for coke to 192.5 kJ/mol for iron coke 15wt%.

关键词： low-carbon ironmaking iron coke gasification structural evolution kinetic model

Dual modulation of homogeneous nanomaterialization and electrochemical activation enhancing zinc ion storage

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Science China Chemistry 2025年第01期 385-393页

作者： Jianwei wang Huan wang Kangning wang Wenhui wang Wenlin Zhang Yanzhong Zhen School of Chemistry & Chemical Engineering Yan'an University

Vanadium-based electrode materials are widely investigated,but the low specific capacity and slow electrochemical kinetics in aqueous zinc-ion batteries still limit their commercial ***,the VS2/Ca V4O9material with the morphology of nanoflower was synthesized by a one-step hydrothermal *** to the blocky structure of pure VS2material,the VS2/Ca V4O9material is composed of thinner homogeneous *** open structures could provide abundant electrochemical active sites and ion transport channels,and then promote the electrochemical reaction *** addition,they can also buffer the bulk strain during the reaction *** improve the utilization of vanadium elements,an in-situ electrochemical activation strategy is used to explore the storage performance of the VS2/Ca V4O9material,the different activation voltage range of 0.4–1.6 and 0.4–1.4 V are selected,*** with the longer activation plateau of activated-VS2,the VS2/Ca V4O9cathode could quickly reach the activation state in the range of 1.4–1.6 V and cause the release of additional Zn storage sites *** VS2/Ca V4O9cathode delivers a higher power density of 37,000 W kg-1and a significant energy density of 423 Wh *** the high current density of 15 A g-1,the VS2/Ca V4O9cathode still has a discharge capacity of 183.9m Ah g-1after 5,000 cycles,and the capacity decay rate per cycle is only 0.0042%.Continuous cyclic voltammetry （CV） curves,electrochemical impedance spectroscopy （EIS） measurements,density functional theory （DFT） calculation and galvanostatic intermittent titration technique （GITT） measurements demonstrate that the VS2/Ca V4O9cathode has a faster ion diffusion/charge transfer ***,the assembled flexible device has an excellent mechanical stability.

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