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Hydrodynamic Characteristics of Undular Tidal Bores in the Qiantang River Based on Field Observations

China Ocean Engineering 2024年第3期38卷 505-518页

作者： ZHANG Shu-yu PAN Cun-hong ZHANG Shen-yang LI Ruo-hua CHENG Wenlong XIE Dong-feng Zhejiang Tongji vocational college of Science and Technology Hangzhou 311231China Zhejiang Institute of Hydraulics and Estuary Hangzhou 310020China

Understanding the undular tidal bores in the Qiantang River is essential for effective river management and *** breaking tidal bores have been studied extensively, reports on undular tidal bores in the Qiantang Riverremain limited. Furthermore, observed data on undular tidal bores fulfilling the requirements of short measurementtime intervals, and spring, medium, and neap tide coverage, and providing detailed data for the global vertical stratificationof flow velocity are quite limited. Based on field observations at Qige in the Qiantang estuary, we analyzedthe characteristics of undular tidal bores. The results showed that the flooding amplitude (a) of the first wave isalways larger than its ebbing amplitude (b). Moreover, the vertical distribution of the maximum flood velocity exhibitesthree shapes, influenced by the tidal range, while that of the maximum ebb velocity exhibites a single shape. Duringthe initial phase of the flood tide in the spring and medium tides, the upper water body experiences multiple oscillatingchanges along the flow direction, corresponding to the alternating process of the crest and trough of the tide levelupon the arrival of the tidal bore. The tidal range is a crucial parameter in tidal bore hydrodynamics. By establishingthe relationship between hydrodynamic parameters and tidal range, other hydrodynamic parameters, such as the tidalbore height, maximum flood depth–averaged velocity, maximum flood stratified velocity at the measurement points,and duration of the flood tide current, can be effectively predicted, thereby providing an important reference for rivermanagement and maintenance.

关键词： tidal bores Qiantang Estuary tidal bore height tidal bore velocity propagation speed

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Effect of Micro-electrolysis and Micro-nano Bubbles Coupled with Peroxymonosulfate Treatment of Rural Domestic Sewage

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Meteorological and Environmental Research 2024年第4期15卷 54-57页

作者： Peng ZHOU Yixin XU Dongmei CHEN Cheng WU Xiaosi LEI Li FENG guangxi Logistics vocational and technical college Guigang 537100China

With the continuous deepening of rural revitalization strategy and the increasingly strict sewage discharge standards,rural domestic sewage treatment technology is facing higher challenges and *** combined process of micro-electrolysis+micro-nano bubbles coupled with peroxymonosulfate was constructed in this study,and the treatment effect and application value of this technology were explored with the actual rural domestic sewage as the treatment *** experimental results showed that under the conditions of HRT of 120 min,PMS dosage of 0.15 mmol/L,pH=7,MBs air intake of 15 ml/min,current intensity of 15 A,and Fe/C mass ratio of 1:1,the removal rates of COD,ammonia nitrogen and total phosphorus can reach 88.55%,77.18%and 74.67%,*** the condition that the pH value of sewage was not adjusted,the non-biochemical simultaneous decarbonization,denitrification and phosphorus removal of rural domestic sewage can be achieved by micro-electrolysis and micro-nano bubbles coupled with *** concentrations of effluent COD,ammonia nitrogen and total phosphorus met the requirements of the first level standard of the Discharge Standard of Water Pollutants for Rural Domestic Sewage Treatment Facilities(DB45T2413-2021).And the comprehensive operating cost was about 1.15 yuan/m 3.

关键词： Integrated equipment Rural domestic sewage Micro-nano bubbles Peroxymonosulfate Micro-electrolysis

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Loading Stress Analysis of Cement Concrete Pavement in Mountainous Areas

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Journal of Architectural Research and Development 2024年第4期8卷 32-39页

作者： Yu Pei Ziyi Lv Jiatao Sun Shichen Liu Xinyong Liu Hebei Jiaotong vocational and technical college Shijiazhuang 050091Hebei ProvinceChina

The suitable cement concrete pavement for mountainous areas is a form of low-cost cement concrete pavement that uses unconventional graded stones in different proportions in ordinary concrete,allowing the concrete to fully contact the stones and form a stable and well-bonded slab with large particle *** large particle stones replace a certain volume of cement concrete,they have good economic performance and are a low-cost form of cement concrete *** study researches the use of ANSYS tools to analyze the influence of geometric dimensions and material properties of rigid pavement structural layers on the mechanical properties of pavement structures.

关键词： Pavement engineering Suitable cement concrete pavement for mountainous areas Finite element analysis Mechanical property

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Study of The technical Index of Online Learning Behavior Analysis of Nursing Majors on The Superstar Platform Based on The Kirkpatrick Evaluation Model

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Journal of Clinical and Nursing Research 2024年第4期8卷 284-291页

作者： Yi Zhang Xiaohua Zhao Jie Li Suzhou Health vocational and technical college Suzhou 215009Jiangsu ProvinceChina

Objective:To analyze the technical indexes of students’online learning behavior analysis based on Kirkman’s evaluation model,sort out the basic indexes of online learning behavior,and extract scientific and efficient evaluation indexes of online learning effect through statistical ***:The online learning behavior data of Physiology of nursing students from 2021-2023 and the first semester of 22 nursing classes(3 and 4)were collected and *** preset learning behavior indexes were analyzed by multi-dimensional analysis and a correlation analysis was conducted between the indexes and the final examination scores to screen for the dominant important indexes for online learning effect ***:The study found that the demand for online learning of nursing students from 2021-2023 increased and the effect was statistically *** with the stage assessment results,the online learning effect was statistically ***:The main indicators for evaluating and classifying online learning behaviors were *** two indicators can help teachers predict which part of students need learning intervention,optimize the teaching process,and help students improve their learning behavior and academic performance.

关键词： Kirkpatrick assessment model Superstar platform Online learning behavior Analyzing technical indicators Research

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Research on the Implementation Path of Ideological and Political Education in the“Horticultural Plant Production Technology”Course under the Rural Revitalization Strategy

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Journal of Contemporary Educational Research 2024年第8期8卷 32-37页

作者： Yuhong Yuan Fujian Forestry vocational technical college Nanping 353000Fujian ProvinceChina

The horticultural industry plays an important role in the rural revitalization *** the core course of horticultural technology,“Horticultural Plant Production Technology”shoulders an important mission in serving the rural revitalization strategy and cultivating a group of rural revitalization talents who truly love agriculture,know agricultural techniques,and understand *** the dimension of ideological and political education in the curriculum,based on the strategy of rural revitalization,the implementation path of ideological and political education in the curriculum is expanded and improved from the construction of education models,curriculum team building,excavation of ideological and political elements,and construction of evaluation systems,in order to improve the level of ideological and political education in horticultural plant production technology courses and provide certain reference and guidance for the ideological and political construction of similar agricultural vocational education courses.

关键词： Rural revitalization Agricultural vocational education Ideological and political education Implementation path

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Field Study of HPTRM Combined with Vegetation and Anchor to Protect Newly Excavated Expansive Soil Slope

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Journal of Earth Science 2024年第4期35卷 1277-1288页

作者： Yingzi Xu Xuhang Liao Linqiang Tang Lin Li college of Civil&Architectural Engineering Guangxi UniversityNanning530004China guangxi Key Laboratory of Disaster Prevention and Engineering Safety Nanning530004China guangxi Transport vocational and technical college Nanning530004China Department of Civil&Architectural Engineering Tennessee State UniversityTennessee37209NashvilleUSA

Anchor reinforced vegetation system(ARVS)comprises high performance turf reinforcement mats(HPTRM),vegetation and *** is a new attempt to apply the system in expansive soil slope *** goal of this paper was to evaluate the effectiveness of ARVS in protecting newly excavated expansive soil *** field tests on the bare slope,grassed slope and ARVS protective slope were carried out,including natural and artificial *** the test,the soil water content,soil deformation,and anchor axial force were monitored,and then the slope protection mechanism of ARVS was *** was found that ARVS can effectively protect expansive soil slopes compared with bare slopes and grassed *** vegetation and HPTRM form a reinforced turf,and the anchors fix it to the slope surface,thus restraining the expansion *** axial force on the anchor of ARVS includes frictional resistance and tensile force transmitted by HPTRM,which is maximum at the early stage of *** neutral point of the anchor of ARVS moves deeper under atmospheric action,but the vegetation and HPTRM on the slope surface can limit this movement.

关键词： expansive soil slope anchor reinforced vegetation system high performance turf reinforcement mats field test slope protection

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Campus Construction Featuring Plant Landscapes: A Case Study of guang'an vocational & technical college

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Journal of Landscape Research 2019年第2期11卷 4-7页

作者： YAO Dequan guang'an vocational & technical college

SStarting from the analysis of the significance of characteristic plant landscapes in the campus, this paper took guang'an vocational & technical college for example, combined with the greening practice of the college, designed the planning layout of "one axis, two phases, three rings, and five areas" of the college, and put forward suggestions for campus construction featuring plant landscapes.

关键词： Plant landscapes Characteristics Campus

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A Case Study on the Effectiveness of Pre-Class Activities in Higher vocational English Classes: Taking Pingliang vocational and technical college as an Example

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Journal of Contemporary Educational Research 2024年第8期8卷 233-237页

作者： Liuna Yang Pingliang vocational and technical college Pingliang 744000Gansu ProvinceChina

Based on Bloom’s“effective teaching theory,”this paper proposes pre-class activities to improve students’enthusiasm and autonomy in English *** include sentence construction,situational dubbing,famous quotes,English songs,English games,Chinese stories,regional cultures,and theme debates,which combine life,interest,and inspiration as the main *** activities can enhance the sense of participation and achievement of all students to achieve the purpose of effective teaching.

关键词： Higher vocational college English class Pre-class activity Effectiveness

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The Insights and Influence of the Sydney Accord on the Teaching Reform of vocational Education in China: A Case Study of Professional Curriculum Achievement Evaluation

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Journal of Contemporary Educational Research 2024年第8期8卷 209-214页

作者： Weijian Zhou Qijun Zhan Liu Yang Dan Wang Ping Yin Na Liu Hunan vocational college of Engineering Changsha 410151Hunan ProvinceChina Hunan Nonferrous Metals vocational and technical college Zhuzhou 412006Hunan ProvinceChina

Scientific curriculum evaluation methods are critical for achieving talent training *** Sydney Accord,one of the three major engineering education certification agreements,focuses on the training of“engineering technologists.”Its logical system and three core principles align well with the connotation development of professional construction in China’s higher vocational colleges,offering significant insights for promoting reform and development in engineering education in Chinese colleges and *** incorporating the core principles,elements,and graduate quality defined in the Sydney Accord and focusing on the evaluation of curriculum achievement against“graduation requirements,”the quality of vocational education can be enhanced,making it an important direction for future teaching reforms in vocational education.

关键词： Educational and teaching reform Curriculum achievement Sydney Accord vocational education

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Chain Rule for Extracting Resilience Procurement Costs from Locational Marginal Prices

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CSEE Journal of Power and Energy Systems 2024年第3期10卷 1342-1355页

作者： Yifei Wang Tong Zhu Tiancong Chen Mohammad Shahidehpour Qingshan Xu college of Electrical Engineering Southeast UniversityNanjing 210096China Henan Mechanical&Electrical vocational college Xinzheng 451191China Illinois Institute of Technology ChicagoIllinois 60616USA IEEE CSEE

Power system resilience procurement costs in N-k contingencies have gained more prominence as number of extreme events continues to increase.A chain rule is presented in this paper for extracting resilience procurement costs from a fully decomposed locational marginal price(LMP)***,power transfer distribution factor(PTDF)matrices with AC power flow(i.e.,AC-PTDF)are ***-PTDF and AC-LODF(line outage distribution factor)equations are derived for N-k contingencies and a fully decomposed LMP model is developed where generation and transmission security components are established for specific ***,resilience procurement costs can be measured at different buses for the proposed security *** of N-k contingencies on resilience procurement costs at specific buses can be determined as proposed security components will gain more insight for resilience procurement in power *** modified IEEE 6-bus and 118-bus systems are adopted to verify effectiveness of the proposed resilience procurement method.

关键词： Line outage distribution factors locational marginal price power system resilience power transfer distribution factor security components

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