bluuebunny/crossref_metadata_2025 huggingface dataset:
Influence of Die Temperature on Microstructure and Strength-Toughness of B1500HS Steel
Authors: She Jianli , Song Yanli , Liu Yujian , Lu Jue , Liu Peng
Published: September 2023

In order to optimize the strength-toughness matching of auto body components. Taking B1500HS steel as the research object. The influence of die temperature on the microstructure and properties was studied by hot stamping tests of flat die, mechanical properties tests and microstructure observation tests. The study shows that the microstructure and properties of B1500HS is not sensitive to die temperature below 250°C. When the die temperature is 20–250°C, the tensile strength of B1500HS is above 1400 MPa, while the plastic-toughness is poor; When the die temperature is above 300°C, B1500HS steel begins to generate martensite-bainite phase. As the die temperature increases from 300°C to 550°C, the strength and hardness of B1500HS decrease significantly, while the plastic and toughness have the opposite trend. When the die temperature in 300°C, B1500HS has good strength-toughness. The tensile strength, percentage elongation after fracture, Vickers hardness, and impact toughness values are 1308.26 MPa, 8.18%, 436Hv, and 800.41 KJ·m–2 respectively.
Compression-After-Impact Analysis of Recyclable Epoxy Resin Matrix Composites
Authors: Li Qian , Bai Ruixiang , Bai Heshan , Lei Zhenkun , Li Xuwei , Yan Cheng
Published: September 2023

Traditional thermoset composites were difficult to remodel and recycle after curing, which significantly increased the cost of composites. In response to these difficulties, the booming development of bond exchange reactive resins have provided a new direction for composites. Traditional composites were vulnerable to damage under low-velocity impact loading, which led to the failure of the overall structure, however, the research on the impact damage of recyclable resins was still insufficient. In order to investigate the damage form of recyclable epoxy resin matrix composites under impact loading, a macroscopic low-velocity impact (LVI) and compression-after-impact (CAI) model based on ABAQUS/Explicit considering the interaction between matrix and fiber damage in composites was established. The paper adopted a multi-scale simulation framework, focusing on the influence of matrix elastic parameters on the structure, and predicted the effective elastic parameters of the matrix composite by constructing a preliminary microscopic representative volume element model. Subsequently, the complex damage modes of laminates at various impact energies and the damage failure mechanism after compression were investigated.
Exploring the Hysteresis Effect of Li-Ion Batteries: Principle and Applications
Authors: Sun Yifei , Zhang Chenxin , Shi Yuye , Li Wenyun , Zhu Ren
Published: September 2023

In the process of research on lithium-ion batteries, it is found that the existence of hysteresis effect leads to errors in the research results. This paper focuses on the hysteresis effect of lithium-ion batteries. Firstly, the hysteresis phenomenon and polarization phenomenon of lithium-ion battery are explained, the principle of hysteresis effect is analyzed, and the main influencing factors of hysteresis effect are the thermodynamic entropy effect, mechanical stress and microscopic deformation inside lithium-ion particles. Then, the application of hysteresis effect in the estimation of various parameters (internal parameters, SOC, SOH) of lithium-ion batteries is introduced. Finally, the paper concludes and proposes an outlook for future research.
Assembly Tooling Design of Automobile Engine Crankshaft and Piston Based on Positioner
Authors: Feng Zhixin , Lv Shixia , Wang Xuelei , Han Jianrui
Published: September 2023

With the vigorous development of modern manufacturing industry, all kinds of traditional manufacturing industries are undergoing rapid transformation and upgrading. As a traditional manufacturing industry in China, most of the production processes have been automated, such as welding, painting and stamping. However, there are still a large number of manual participation in the assembly line of automobile manufacturing, especially the assembly of automobile engine, which has high labor intensity and low efficiency. Based on this, this paper designs a set of automobile engine crankshaft piston assembly tooling based on positioner and industrial robot. The tooling is controlled by PLC system and equipped with industrial robot for automobile engine assembly. At the same time, the assembly tooling of engine crankshaft and piston is composed by pneumatic technology. The tooling can realize the automatic assembly of automobile engine and greatly improve the production efficiency.
Innovation Research on Construction Safety Management of Civil Engineering Based on Machine Learning
Authors: Li Daihong , Kang Qian
Published: September 2023

The neural network based on the deep learning theory has a profound theoretical basis and broad application prospects in the field of bridge structure damage identification. The comparison and analysis are made from three aspects of input vector, finite element model and neural network, which provides reference for further research on neural network in bridge structure damage identification. Through analysis, it is found that the ability of neural network to extract relevant information can be effectively improved by selecting the finite element model or the original data obtained in the actual situation as far as possible for the input vector. When the stress of bridge structure is simple, neural network with shallow layers and simple network structure can be selected. When the stress of bridge structure is complex, the neural network model with strong complexity should be selected first.
Analysis of Influence of Geotechnical Dynamics Characteristics on Tunnel Engineering Design
Authors: Wang Qi , Wang Xuan , Wang Keyao
Published: September 2023

Based on the study of geotechnical dynamics characteristics, this paper analyzes its influence on tunnel engineering design. Tunnel engineering is an important part of underground engineering construction, and the characteristics of geotechnical dynamics are important factors affecting the design of tunnel engineering. It is found that the geotechnical dynamics characteristics have obvious influence on tunnel engineering design, including influence on tunnel technology selection, influence on tunnel construction safety, influence on tunnel design specifications, etc. Therefore, the study of geotechnical dynamic characteristics not only provides important technical support for the design of tunnel engineering, but also has important significance for the safety and stability of tunnel engineering. The research of this paper provides important theoretical guidance for tunnel engineering design and helps to improve the level of tunnel engineering design.In summary, the construction design of a tunnel project requires not only specialised technical the construction progress and the quality of the work, but also Large equipment and tools are also required to work together with the construction personnel to complete the construction of the tunnels. Before construction, specialised units are required to carry out specialised geological forecasts and The construction of the tunnels will require specialised geological forecasting and advanced exploration work to inform the construction requirements. Timely feedback on the construction situation to geological survey and design and construction units, especially in the case of rock mechanics in tunnels. The need for experts in the field of mechanics to carry out multifaceted investigations, only through the rational use of Only by making reasonable use of the rock mechanics in the tunnel can the tunnel be designed in a reasonable way and the use of the tunnel in the Only by making reasonable use of the rock structure of the tunnel can the design of the tunnel be rationalised and the frequency of accidents be reduced.
Study on the Reasonable Clear Distance of Ultra-Shallow Buried Tunnel Group Through Expressway
Authors: Zheng Qiqi , Li Chuanlin , Yan Xinyu
Published: September 2023

Under the condition of super-shallow coverage and small spacing, the tunnel construction is easy to cause large structural deformation. The mechanical properties and supporting effect of tunnel with small spacing are summarized. Finite element software is used to simulate the effect on construction of tunnel group by changing the distance. The results show that with the increase of the distance, the settlement value of the middle tunnel has a smaller and smaller distribution law, when the distance exceeds 3 m, the maximum main stress reduction changes less as the distance increases further, and the research results can provide a reference for the design and construction of similar tunnel group.
Static Load Test of Single Beam of a Simply Supported to Continuous Small Box Beam Skew Bridge
Authors: Li Bochen , Jian Jiashuo , Xie Ying , Gao Hongshuai
Published: September 2023

In this paper, a simple supported to continuous small box beam skew bridge is taken as an example to conduct static load tests. Firstly, a finite element model of the bridge is established by using Midas Civil to obtain the theoretical bending moment of the precast beam. Then, the measurement point arrangement and loading program of the precast beam are designed. Finally, the load is applied to the precast beam in multiple stages, and displacement and strain data are measured. Through the analysis of displacement and strain, the research results show that the precast beam is in an elastic working state, the strain conforms to the assumption of a flat section, and the bearing capacity and stiffness meet the use requirements.
Numerical Simulation Research on Coupling Mechanism of Shield-Support-Surrounding Rock in Complex Loess Geology
Authors: Liu Guoping , Feng Jun , Liu Heyi
Published: September 2023

The tunneling machine for the Hanjiang to Weihe River Water Diversion Project is expected to encounter complex and unpredictable geological conditions, which could result in accidents such as large deformations of soft rock and segment failure. To address this, a refined numerical simulation model using FLAC3D was utilized to study the coupling mechanism of shield-support-surrounding rock under loess geological conditions. Results show that the overall rock deformation is significant, but due to the support effect of the face, displacement at the cutter head is minimal. Deformation of the surrounding rock increases gradually from the back of the face to the pipe segment. Stress redistribution occurs within a certain range of the gap reserved at the shield, with the maximum principal stress in the secondary stress located near the tail of the shield. A typical cave section of Bailu Tableland exhibits a layered stress distribution phenomenon, with stress release from the cave wall to the outer rock mass. This includes zones of concentration, transition zones, and non-interference zones. In the excavation direction of the tunnel, the maximum principal stress is relatively high at the junction of the shield tail and the segment structure, as well as at the entrance of the tunnel.
Research on the Influence of External Water Pressure on the Construction of Shield Tunneling in Complex Loess Geology
Authors: Feng Jun , Liu Heyi , Pei Jiangrong
Published: September 2023

This study aimed to investigate the effect of external water pressure on the construction of shields in complex loess geological conditions. The Hanjiang to Weihe River Water Diversion Project water conveyance tunnel was used as an engineering case, and a seepage-mechanics coupling model was developed using Phase2 finite difference software. The model was based on the geological parameters of typical tunnel sections in Bailu Tableland. The results of the calculations indicate that the external water pressure outside the lining is distributed unevenly, with high pressure on the lower side of the tunnel, low pressure on the upper side, and equal pressure on the left and right sides. The maximum external water pressure of the lining increases significantly with the rise of the underground water level. Although the maximum principal stress of the segment structure decreases as the underground water level increases, the difference between the maximum and minimum values is only 1.015 times. The maximum deformation and the maximum principal stress of the surrounding rock increase with the distance between the underground water level and the caving roof but are not sensitive to changes in the groundwater level. As the surrounding rock in the collapsible loess stratum lacks self-stability, its overall displacement remains high even after lining is applied. Therefore, appropriate measures need to be taken during construction to prevent potential environmental and hydrogeological issues.
Failure Analysis of a Soft Broken Roadway and a New Bolt-Grouting Support Technology
Authors: Zhang Jianguo , Wang Hongtao , Guo Jianwei , Li Jianjian , Yang Zhanbiao , Chen Jiacai , Li Xiaojing , Zhao Mingzhu , Gao Guanglong
Published: September 2023

In this paper, taking a typical roadway in broken and soft rock strata in No. 10 Mine of Pingdingshan coal field as an example, the deformation and failure mechanism of rock mass was deeply analyzed based on field testing. Then the technology of high-strength prestressed bolt-grouting support, such as the new combined high-strength grouting bolt, high-strength hollow grouting anchor cable, were developed. Based on this, a repair support scheme using the new technology was designed for on-site roadway, and was successfully implemented in the field. The monitoring results after the repair of field roadway show that the maximum of roadway surface convergence deformation is 56 mm. The maximum force of the grouting bolt is 122 kN, the grouting anchor cable is 256 kN. The new technology can fill the cracks of rock mass and the borehole interstice at the free part by using grouting materials. It can effectively enhance the self-bearing performance of soft broken rock mass on the premise of ensuring the diffusion of prestressed active supporting effect in rock mass, and then suppress the deformation and failure of roadway. The research works can provide references for the stable control and support design for roadways in soft and broken rock strata.
Long Term Mechanical Performance Analysis of Long-Span Prestressed Concrete Continuous Rigid Frame Bridge Based on Compressive Stress Ratio of Top and Bottom Plates
Authors: Yu Qianhua , Zhou Zhiyu , Bao Hao , Yue Zhipeng
Published: September 2023

In order to explore the influence of different ratios of compressive stress to roof and floor on the long-term performance of the bridge, this paper takes a long-span PC continuous rigid-frame bridge in Xiangxi Autonomous Prefecture as the research object, establishes the whole bridge model by Midas/Civil, and analyzes the changes of long-term stress and deflection of the main beam with different ratios of compressive stress to roof and floor by changing the longitudinal prestressed steel tendons. The results show that the greater the ratio of compressive stress between top and bottom plates, the better the long-term mechanical properties of the bridge.
Deformation Characteristics and Control Methods of Deep Foundation Pit Excavation in Watery Sandy Soil Area
Authors: Liu Wenjie , Zhan Yequan , Zheng Shuang , Li Jichao , Qiu Yunjun , Wei Dong , Liu Chao
Published: September 2023

This paper investigates the deformation characteristics and control methods of support structures during deep foundation pit excavation, using the foundation pit at the Diejiao Station of Foshan Metro Line 3 as a case study. A 3D nonlinear finite element software is employed for excavation simulation, adopting coupled pore fluid diffusion and stress analysis. The numerical model is verified by comparing the field monitoring data with the finite element results. The study systematically analyzes the influence of reinforcement position, reinforcement parameters, and reinforcement depth on the maximum lateral displacement of the diaphragm wall of the foundation pit. The research results reveal that reinforcing the soil on both sides of the diaphragm wall can effectively reduce the lateral deformation of the foundation pit. Furthermore, the study shows that external reinforcement of the diaphragm wall can reduce the maximum lateral displacement of the wall to a certain extent, but the reinforcement effect is limited. The reinforcement effect of the inner side of the diaphragm wall improves with the increase of the excavation depth. Properly increasing the Young’s modulus of the reinforcement can reduce the adverse effect of excavation on the foundation pit. Finally, the optimal depth of reinforcement is found to be the excavation depth of the foundation pit of 28.2 m. The research results can provide a reference for the foundation pit reinforcement scheme in watery sandy soil areas.
Research on Design Optimization of Long-Span Hybrid Girder Cable-Stayed Bridge with Two Unequal-Height Towers
Authors: Zhang Wei , Liu Deyun , Bai Xiaoyu , Li Chong
Published: September 2023

The cable-stayed bridges (CSBs) with high-low towers have obvious asymmetry in structural layout and mechanical behavior. The stiffness and vibration mode of CSBs with high-low towers are obviously different. In order to optimize the mechanical performance of CSBs with high-low towers, taking the Shunxing Bridge with the main span of 626 m as example, a design optimization study is carried out from the suitable structural system, the ratio of side span to main span, and the setting of auxiliary piers. The results show that temperature load is a key factor in determining the unconsolidated system of the CSB with high-low towers, and it is also related to the height of the lower pylon. A reasonable ratio of side span to main span can decrease the static and dynamic response of the CSB with high-low towers; The setting of auxiliary pier can increase the structural rigidity and greatly reduce the stress and vertical deformation of the main beam on the side span. The research results can provide reference for the design of long-span CSB with high-low pylons.
Structural Optimization Analysis of Poroelastic Road Surface Based on Finite Element Technology
Authors: Zhao Zhenhua , Du Lianping , Guo Jing , Sun Mingzhi
Published: September 2023

Tire road noise is the main component of traffic noise. Therefore, it is of great significance to develop functional pavement which can reduce tire road noise. Poroelastic road surface (PERS) is one kind of high-efficiency noise reduction road structure. In this paper, with the help of finite element technology, the mechanical manners of PERS is simulated, and the flexibility, bending tensile stress/strain, shear stress/strain with different thickness structures were studied and evaluated. The mechanical control indicators of PERS were obtained, meanwhile the semi-flexible pavement structure thickness meeting the demands of pavement mechanics was improved. The conclusion shows that PERS structure can reduce the tensile stress at the foot of the surface layer and improve the driving comfort. It can be used in various structural layers of the highway.
Research on Welding Parameters of Steel Fabric for High-Speed Railway Simply-Supported Box Girder
Authors: Niu Yuanzhi , Zhang Shaopeng , Zhang Shang , Du Chuang , Gao Qihui , Huang Yimiao , Zhang Ning
Published: September 2023

The intelligent construction technology of the steel skeleton of high-speed railway simply-supported box girders upgrades the steel fabric from manual construction to automatic welding construction. The welding parameters of cross-welded steel bars in steel fabric are directly related to the static welding strength and the fatigue performance. To determine the welding parameters of cross-welded steel bars, five groups of specimens were designed and the welding time was used as the welding parameter. Through the static tensile and fatigue test, the results show that it is not that the longer the welding time, the greater the static strength and fatigue life of the specimen. There is an optimal value of welding time. Finally, the welding time corresponding to the N3 was selected as the best welding parameter. The research results of this paper provide technical support for the subsequent steel welding fatigue test.
Study on the Influence Law of Deep Displacement on Anchor Cable Internal Force Under Pile and Anchor Support System of Deep Foundation Pit
Authors: Zhang Yaxin , Gu Chuanyao , Wang Junpeng , Xie Wenzhuo
Published: September 2023

Numerous advances in the understanding of the deformation law of deep foundation pit excavation have been accomplished recently. However, there hasn’t been much investigation into how deep displacement laws affect the internal pressures of anchor cables. In order to better understand how deep displacement impacts the internal force of the anchor cable beneath the pile anchoring system of the deep foundation pit, this essay will look into that issue. Using finite element analysis software and the findings of a study of a deep foundation pit project in Jinan City, a two-dimensional model of the deep foundation pit project was produced. In order to replicate the internal force of the anchor cable and the deep soil movement during foundation pit excavation. The findings indicate that there is high agreement between measured values and the numerical simulation results for internal forces and deep soil displacement. In normal situations, the deep displacement of soil caused by excavation causes the internal force of the anchor cable to increase at the start of construction but decrease as work progresses. With the gradual increase of the soil’s deep displacement, the anchor cable’s internal force also increases, and its variation trend is approximately in line with the linear law, which provides theoretical support for the actual engineering construction.
Analysis of the Influence of Different Factors in Foundation Pit Excavation on the Underlying Shield Tunnel
Authors: Li Junqiang , Yang Zheng , Dang Yike , Zhou Zhijun
Published: September 2023

In order to explore the effect of foundation pit excavation on the adjacent metro, through numerical simulation, the factors such as excavation depth, counterweights thickness and the cement soil attribute in foundation pit engineering are analyzed. The research results show that: Excavation of the foundation pit can affect the displacement of the nearby tunnel; Among the above factors, the excavation depth and the thickness of counterweights have a significant effect on the tunnel displacement; The increase of elastic modulus of cement soil is helpful to control the tunnel displacement. Therefore, special attention should be paid to the foundation reinforcement work in the similar project to improve the safety level of the project.
Analysis of High Slope Stability Supported by Rainfall Conditions for Multi-Stage Excavation
Authors: Ruan Haodong , Chen Yelin , Zheng Xiaodong , Fu Jianbao , Shen Yiming , Zhao Yibo
Published: September 2023

In order to study the stability of the high slope after multi-stage excavation support by rainwater infiltration under different rainfall conditions, relying on the high slope project of the First People’s Hospital of Dazhou City, Sichuan, and the method of combining numerical analysis and on-site monitoring were adopted, based on ABAQUS software, the role of different rainfall intensity and different rainfall duration was considered, the conceptual model of high slope supported by multi-stage excavation under rainfall conditions was established, and the calculation method of multi-layer unsaturated soil was introduced, and then the stability of the slope of unsaturated soil was summarized, and the pore water pressure and pore water pressure were obtained. The volumetric water content was positively correlated with rainfall intensity and rainfall duration, and the influence of long-term high-intensity rainfall on the high slope supported by multi-stage excavation, the maximum shear stress of the soil increased, and the displacement at the top and foot of the slope was large, which was easy to produce damage instability, which was consistent with the actual situation. The effect of rainfall intensity on slope stability is revealed, which can provide a theoretical reference for the study of high slope stability supported by multi-layer excavation.
Study on the Stability of Elastic Thin Plates
Authors: Zhao Shengbing , Luo Xianyan , Yao Qi
Published: September 2023

This paper discusses the buckling stability of elastic thin plates, deduces the critical load calculation formula in detail, calculates the critical load of simply supported rectangular thin plates using the energy calculation method, and calculates and analyzes the critical longitudinal load of buckling stability of elastic thin plates using the finite element software ANSYS. The results show that the finite element software analysis and calculation can not only solve the engineering problem of the buckling critical load of the elastic thin plate quickly, but also the accuracy of the results is reliable.
Research on the Differences in Bearing Characteristics Between Single Pile Composite Foundations and Pile Group Composite Foundations
Authors: Zhang Liang , Wang Tiehang , Zhao Zaikun , Ruan Jiabin
Published: September 2023

In the loess area, the bearing capacity of rigid pile composite foundation is mainly determined based on the load test of single pile composite foundation. However, it has been observed that there is a significant difference in settlement between on-site loading tests in settlement between on-site loading tests and the actual settlement of the building. In order to identify the reasons for the difference in settlement between single-pile composite foundation and pile group composite foundation, and to lay a foundation for revising the results of loading tests for single-pile composite foundation, this article studies the bearing differences between single pile composite foundation and group pile composite foundation under high-rise building loads. Based on an example of a first-class high-rise building, it was found that although the settlement results of the loading test were smaller, the high-rise building experienced excessive settlement. Therefore, it is necessary to further establish a finite element model considering the pile-soil interaction for single pile composite foundation and pile group composite foundation, and compare and analyze the differences in pile axial force and side friction. The difference in bearing capacity is due to the higher load borne by the soil between piles in the pile group composite foundation. The soil around piles generates downward movement relative to the surface of the pile. This will lead to a decrease in the lateral friction resistance of the pile, thereby weakening its bearing capacity and increasing its vertical settlement. Resulting in the difference in settlement between the loading test and the actual post-construction settlement.
Stability Study on Super Large Section Tunnel Crossing Fault Zone
Authors: Miao Dan , Wu Fucheng , Ye Jianxin , Zeng Qiqi , Chen Yang , Liang Douhui , Liu Quan
Published: September 2023

The existence of fault zone always intends to bring about potential engineering risks to mountain tunnel construction. Due to the large excavation area and the low flattening rate, it is necessary to pay special attention to the stability of super large section tunnels while constructing across a fault zone. 2 tunnel displacement indexes of super large cross section tunnel are defined: SR1, based on arch crown settlement and SR2, based on tunnel convergence. By the finite difference software FLAC3D, numerical calculation models of a practical three-lane super large section tunnel is established. Corresponding data of the models with and without a fault zone are picked out and the values of SR1 and SR2 are calculated and compared, thus, the influence zone of the tunnel is determined. Further, based on the above analysis method, SR1 and SR2 are used to analyze the influence of the inclination and thickness variation of the fault on the stability of the tunnel. The results show that: as the inclination of the fault changes from 75° to 30°, the influence length increases by 3.7 times along the axial direction of the tunnel; as the fault thickness increases from 6 m to 12 m, the influence length increases 2 times along the axial direction of the tunnel. The above-mentioned quantitative influence range would be adopted as a reference value for the precise design and construction in similar super large section tunnel.
Exploiting Structure: A Survey and Analysis of Structures and Hardness Measures for Propositional Formulas
Authors: Adamy Rick , Kuiter Elias , Saake Gunter
Published: September 2023

The Boolean satisfiability problem (SAT) and its many variations lie at the core of many algorithmic problems in both academia and industry. Due to being NP-complete, general instances of SAT cannot be solved efficiently. However, exploiting certain structures or properties of a formula can greatly accelerate the computation of solutions or serve as a measure for the hardness of a SAT instance. In this paper, we describe and discuss such exploitable properties and structures. First, we describe known exploitable structures found in propositional formulas like blocked clauses, unit clauses, pure literals, backbones, and autark assignments. Second, we describe hardness indicators for propositional formulas such as the variable-to-clause ratio, as well as advanced structural measures like centrality, modularity, and self-similarity. In particular, we give an overview on the selected structures and measures and discuss their applications. We also identify relationships between them to clarify their complex interactions and potential for use in solvers.
Could geographical features of green spaces influence physical exercise? Examining the roles of neighbourhood diversity and single status
Authors: Guan Ming
Published: September 2023

BACKGROUND: A rapidly growing body of research suggests that exposure to green space has been associated with better physical and mental health. This study aimed to examine whether the neighbourhood diversity and single status simultaneously mediated associations between geographical features of green spaces and green physical exercise. 

METHODS: Data were from a sample of 1387 full-time employees from the green exercise. Using hierarchical regressions, logistic regressions, and linear regressions with multiple fixed effects, this study investigate the associations of geographical features of green spaces with transport modes, travel duration to green space, and visiting and exercise time, respectively. 

RESULTS: The sample was dominated by middle-aged, British nationality, male, and employees walking to green space. Neighbourhood diversity and single status moderated the association with daily visit. Neighbourhood diversity moderated the associations with choices of car, bus, and walk, hours visiting LGS, and vigorous exercise time, respectively. Likewise, single status moderated the associations with vigorous exercise time.  

CONCLUSION: This population-based study underscores the importance of neighbourhood diversity and single status in the transport modes and vigorous exercise time. These findings indicate that the residential environment and marital status could influence the choices of transport modes and vigorous exercise time. Additional research is needed to determine how work time can influence level and time of green physical exercise.
Застосування інновацій у процесі організації освітнього процесу здобувачів вищої освіти в умовах магістратури
Authors: Кучер Віталій , Рожнова Тетяна
Published: September 2023

У статті розглянуто ключові аспекти інноваційного підходу до організації освітнього процесу та підготовки здобувачів вищої освіти другого рівня навчання, а також описано методи використання новітніх технологій у процесі організації освітнього процесу, а саме: використання інтерактивних технологій, віртуальних лабораторій, спеціальних програмних засобів та вебсерверів, електронних платформ, створення електронної бази та ін.Досліджено та охарактеризовано можливості інформатизації освітнього простору та вказано на необхідність введення інноваційного підходу щодо організації освітнього процесу підготовки здобувачів вищої освіти другого рівня навчання. Розкрито доцільність використання новітніх технологій у процесі організації навчання у закладах вищої освіти, зокрема описано доцільність створення електронної бази даних.Описано використання нових інформаційних технологій при підготовці та організації освітнього процесу у закладах вищої освіти на прикладі Житомирського державного університету імені Івана Франка. Проведено аналіз електронної системи документообігу «Е‑портфоліо» у цьому ж університеті.
Система освітнього партнерства закладу загальної середньої освіти України в умовах війни
Authors: Топузов Олег , Данко Антоніна
Published: September 2023

У статті визначено, обґрунтовано й узагальнено найсуттєвіші зміни в системі освітнього партнерства вітчизняного закладу загальної середньої освіти, що спричинені повномасштабною агресією Росії проти України, виникли в умовах війни. Визначено нові умови функціонування і розвитку закладів системи повної загальної середньої освіти України (соціокультурні, соціально-демографічні, соціально-економічні, інформаційні, соціально-психологічні), виникнення яких зумовила російська агресія. Виокремлено й обґрунтовано основні тенденції функціонування вітчизняної системи закладів системи повної загальної середньої освіти в умовах російсько-української війни. Описано вплив умов воєнного стану на структурні компоненти системи освітнього партнерства вітчизняного закладу загальної середньої освіти, а саме: кількісний та якісний склад його суб’єктів, пріоритетність об’єктів, оновлення і нові критерії ранжування цілей і завдань освітнього партнерства української школи, нові пріоритетні напрями й засоби (інструменти) освітньої співпраці, очікувані результати.
Концепція базової фізичної освіти: основні положення та умови реалізації
Authors: Головко Микола
Published: September 2023

У статті висвітлюються основні положення Концепції базової фізичної освіти, розробленої науковими співробітниками відділу біологічної, хімічної та фізичної освіти Інституту педагогіки НАПН України. Наголошується, що Концепція є важливим складником процесу імплементації Державного стандарту базової середньої освіти третього покоління в освітню практику та розвиває ідею переходу від стандарту змісту до стандарту обов’язкових результатів навчання. Її запровадження сприятиме утвердженню компетентнісної парадигми формування та реалізації змісту фізичного складника природничої освітньої галузі, пріоритетом якої є розвиток у здобувачів базової освіти здатності використовувати набуті знання на практиці. Відтак освітній процес із фізики орієнтується не на розширення та поглиблення змісту навчання, а, насамперед, на вдосконалення в учнів умінь і навичок досліджувати явища природи, аналізувати та інтерпретувати результати як основу формування дослідницької компетентності та ключової компетентності в галузі природничих наук.Обґрунтовуються теоретичні підходи, покладені в основу Концепції, їх відповідність сучасному стану психолого-педагогічної науки, дидактики та методики навчання фізики, світовим тенденціях розвитку освітньої практики. Акцентується увага на механізмах, що забезпечують можливість реалізації у шкільній практиці варіативних моделей базового курсу фізики залежно від особистісних уподобань здобувачів, умов конкретного закладу освіти та методичної майстерності педагогів.Аналізуються шляхи та визначаються умови реалізації Концепції як системи положень, що визначають освітню стратегію реалізації фізичного складника природничої освітньої галузі, спрямовану на формування та розвиток у здобувачів базової освіти умінь досліджувати навколишній світ та гармонійно й відповідально взаємодіяти з природою та суспільством.
Розвиток професійної майстерності спеціалістів медсестринства через організацію післядипломного освітнього процесу
Authors: Шарлович Зоя
Published: September 2023

Організація освітнього процесу післядипломної підготовки спеціалістів медсестринства здійснюється на підставі законодавчих актів, нормативних документів і спрямована на виконання навчальних планів і навчальних програм відповідно до циклів спеціалізації і удосконалення. Для досягнення навчальних цілей, необхідним є використання сучасних організаційних підходів, новітніх освітніх і цифрових технологій, що забезпечить потреби слухачів в оновленні, отриманні нових знань; формуванні практичних умінь, оволодінні навичками, формуванні загальних і професійних компетенцій, які б відповідали міжнародним медсестринським стандартам і протоколам. Тісна співпраця закладів післядипломної медичної освіти і закладів практичної хорони здоров’я забезпечує можливість досягнення потреби суміжних галузей у безперервному навчанні спеціалістів медсестринства та розвитку їх професійної майстерності.Зазначено, що для досягнення мети щодо розвитку професійної майстерності спеціалістів медсестринства необхідно опиратися на законодавчу і нормативну базу, яка регулює діяльність у сфері післядипломної освіти. Водночас у закладах медичної освіти та їх структурних підрозділах, які надають післядипломні послуги, необхідно вивчати попит закладів практичної охорони здоров’я; швидко реагувати, постійно оновлювати і доповнювати навчальні плани і навчальні програми, відповідно до вимог часу та інтенсивних змін і розвитку медицини; удосконалювати практичну складову на доклінічному етапі з розгортанням сучасних, добре обладнаних доклінічних симуляційних кабінетів і центрів; залучати до викладання фахівців, які мають досвід практичної роботи на медсестринських посадах в закладах практичної охорони здоров’я.Ефективна організації післядипломного навчання спеціалістів медсестринства, створення інноваційного освітнього простору, спрямування на пошук продуктивних форм, методів і засобів організації безперервної професійної освіти, сприятиме розвитку професійної майстерності спеціалістів медсестринства.
Derecho del consumo y protección del consumidor sustentable en la sociedad digital del siglo XXI
Authors: Barona Vilar Silvia , Barcia Lehmann Rodrigo , Espluges Mota Carlos , Masbernat Patricio , Pacheco Hellen , Lucas Garín Andrea , Isler Soto Erika , Bedecarratz Scholz Francisco , Cornejo Plaza María Isabel , Bozzo Hauri Sebastián , Remeseiro Reguero Rebeca , Blanco García Ana Isabel , Sanz Hermida Ágata María , Martínez García Elena , Colmenero Guerra José Antonio , Montesinos García Ana , Marcos Francisco Diana , Palao Moreno Guillermo , Martínez-Cárdenas Betty , Catalán Chamorro María José , Planchadell-Gargallo Andrea , Contardo González Juan Ignacio
Published: September 2023

Si bien el origen del consumo puede encontrarse a partir del siglo XVII, con la producción y comercialización de bienes y productos, emergiendo el denominado «consumo de necesidad», su imparable y volcánica evolución ha promovido el paso de ese consumo de subsistencia al consumo como bienestar y su posterior sentido de consumo = pócima de la felicidad. Seductoras oportunidades, que atraen, embaucan, manipulan y convencen al destinatario no sólo del objeto a consumir, sino de su necesidad indiscutible, han ido favoreciendo un consumo masivo, propulsado en la sociedad economicista y tecnológica del siglo XXI, que plantea problemas al planeta en general, como la pérdida de recursos para el medioambiente o las patologías mentales (a ello se ha referido Naciones Unidas con los ODS 2015), además de suscitar la necesidad de conjugar límites y regulaciones que permitan controlar el consumo líquido que nos acompaña. Son numerosas e interesantes las cuestiones que se van planteando en torno a un derecho del consumo en constante mudanza, activo, impulsivo, expansivo. De este modo, la obra que el lector tiene entre sus manos ofrece esa mirada poliédrica, asimétrica, de numerosas cuestiones que provoca en el siglo XXI el análisis acerca del sobredimensionalismo del consumo en la vida y de sus consecuencias en el derecho del consumo.
Microwave Real-Time and High-Resolution Imaging System Development for NDT Applications: A Chronology
Authors: Reza Zoughi
Published: September 2023

In the past four decades, microwave imaging has experienced a renaissance. This has happened because of new technology development, improved and robust image reconstruction algorithms, expansion of imaging modalities, and operational friendliness, particularly for nondestructive testing (NDT) applications (e.g., high-resolution, real-time, portable systems). Efforts to push the envelope forward continues. This paper provides a brief background on some of the key works that laid the foundation for these advancements. Next, the focus of the paper shifts to the author’s research group’s contributions to the field since the early 1990s to the present day in developing new imaging methodologies and tools specifically for NDT applications. This paper gives a chronology of these specific developments and illustrates how the desire to address NDT needs and requirements have kept these developmental processes moving forward.
Influence of the Transverse Stress Component of Ferromagnetic Materials on MBN Signals Under Bidirectional Stress Conditions
Authors: Di Jingyu
Published: September 2023

This paper studies the effect of the transverse stress component of magnetically isotropic ferromagnetic materials on the magnetic Barkhausen noise (MBN) testing signals under planar bidirectional stress states. Based on the logistic distribution function, a model that can be used to describe the effect of the planar bidirectional stress level on MBN characteristic signals is proposed; the formulated model works within the elastic limit of the magnetically isotropic ferromagnetic materials. Then, the characteristics of the proposed regression model are analyzed by computer simulation. Finally, to validate the proposed regression model, the bidirectional stress experimental data extracted from the published paper is used. The results show that there is a high linear correlation between the actual data and the predicted data of the formulated model. Therefore, it can be proved that the proposed planar bidirectional stress regression model based on the logistic distribution function is feasible, applicable, and valuable.
Evaluation of Communication Sciences and Disorders Graduate Student Attitudes Related to Trauma-Informed Client Interactions
Authors:   ,   Andrews University, Joseph Jenica
Published: September 2023

Problem Communication sciences and disorders (CSD) graduate students may have trauma histories and may be ill-equipped to identify and manage trauma responses in clients. This mixed-methods study examined graduate student attitudes towards implementing trauma-informed educational practice (TIEP) methods and trauma-informed patient care. Method The Attitudes Related to Trauma-Informed Care (ARTIC) Scale (Baker et al., 2016) quantitatively measured pretest/posttest changes in CSD graduate student attitudes towards use of trauma-informed care with clients. Participants (n=43) were assigned to non-equivalent experimental and control groups. Groups received the pre/posttest and either an immediate (experimental) or delayed (control) trauma-informed educational session. Twenty-one participants completed focus group interviews. Interviews were conducted following quantitative data analysis. A transcendental phenomenological approach was implemented. Results ANCOVA comparisons between ARTIC-45 subtest variables when controlling for the pretest was not significant. However, according to effect size findings, student attitudes towards implementation and use of trauma-informed care (TIC) in clinical settings suggested moderate improvements in ARTIC-45 scores when comparing experimental and control groups. Five qualitative themes of (a) felt-safety, (b) application, (c) coping, (d) relationship development, and (e) felt-need emerged from focus group interviews. Conclusions Inclusion of TIEP into graduate CSD programming may support student mental health, confidence, clinical practicum performance, and efforts towards greater diversity, equity, and inclusion. This study represents an initial step toward understanding how graduate students who have had TIC training may be better equipped to meet the needs of current and future clients with trauma histories and their own self-care needs as health and human service providers.
The Perceived Results of Feedback and Evaluation of Teaching Effectiveness on Adjunct Faculty Professional Development and Growth
Authors:   ,   Andrews University, Vine Luda
Published: September 2023

Problem While full-time faculty at any institution of higher learning undergo an established system of evaluation of teaching effectiveness, adjunct faculty members' experience varies greatly from institution to institution. There is little in the relevant academic literature about an effective feedback mechanism for evaluating teaching effectiveness among adjunct faculty members. Limited qualitative research has been done to understand the effects of teaching evaluations on the professional development and growth of individual adjunct faculty members. Developing an understanding of effective evaluation of teaching that will result in improved adjunct faculty professional development and growth will impact not only the faculty members' morale and retention but also student learning and student success. Method The researcher used a grounded theory approach based on the data collected from semi-structured interviews with eight adjunct faculty members to understand a) what type of feedback of their teaching effectiveness adjunct faculty currently receive; b) what types of feedback of their teaching effectiveness adjunct faculty find to be helpful for professional development and growth; c) how adjunct faculty use the feedback of their teaching to shape their professional development decisions; and d) how the feedback of teaching effectiveness is perceived by adjunct faculty. Results The results of the study led the researcher to form a substantive theory, Feedback Mechanisms for Sustainable Adjunct Faculty Growth, which states that the feedback that leads to sustainable adjunct faculty growth is (a) inspiration-led through exhibiting inspirational leadership; (b) relationship-building through promoting collegial collaboration; (c) learning-centered through fostering student success; (d) instructor-oriented through upholding the instructor agency; and (e) support-imparting through nurturing a culture of support. This model includes the multiplicity of voices and processes of the effective assessment of teaching and is framed in the context of contributing not only to the advancement of each individual adjunct faculty but also to the greater good of the academic community. Conclusions The present study examined the results of feedback and evaluation of teaching effectiveness on adjunct faculty professional development and growth. The findings suggest that feedback that leads to sustainable adjunct faculty growth is inspiration-led, relationship-building, learning-centered, instructor-oriented, and support-imparting. The results have important implications for both teachers and administrators as they help adjunct faculty develop professionally, contribute towards a higher quality of teaching instruction, and improve student learning.