Home / Advanced Search

  • Title/Keywords

  • Author/Affliations

  • Journal

  • Article Type

  • Start Year

  • End Year

Update SearchingClear
  • Articles
  • Online
Search Results (3,678)
  • Open Access

    ARTICLE

    Study on the Dynamic Mechanical Damage Behavior of Concrete Based on the Phase-Field Model

    Zhishui Sheng1, Hong Jiang1, Gang Liu2, Fulai Zhang3, Wei Zhang3,*

    Structural Durability & Health Monitoring, Vol.19, No.3, pp. 531-548, 2025, DOI:10.32604/sdhm.2024.059662 - 03 April 2025

    Abstract Concrete materials are employed extensively in a variety of large-scale structures due to their economic viability and superior mechanical properties. During the service life of concrete structures, they are inevitably subjected to damage from impact loading from natural disasters, such as earthquakes and storms. In recent years, the phase-field model has demonstrated exceptional capability in predicting the stochastic initiation, propagation, and bifurcation of cracks in materials. This study employs a phase-field model to focus on the rate dependency and failure response of concrete under impact deformation. A viscosity coefficient is introduced within the phase-field model… More >

  • Open Access

    ARTICLE

    The Impact of Chinese Teachers’ Career Calling on Job Burnout: A Dual Path Model of Career Adaptability and Work Engagement

    Huaruo Chen1,2, Wanru Song1, Jian Xie1, Huadi Wang3, Feifei Zheng3, Ya Wen4,*

    International Journal of Mental Health Promotion, Vol.27, No.3, pp. 379-400, 2025, DOI:10.32604/ijmhp.2025.060370 - 31 March 2025

    Abstract Objectives: Teachers are facing unprecedented new challenges leading them to face an increasing number of tasks that are not part of their job, as well as having to cope with the additional skills acquisition that comes with non-traditional forms of teaching and learning, and increased work pressure leading to an increase in the rate of teachers leaving the profession. Therefore, this study aims to explore the mechanism of the career calling on job burnout through career adaptability and work engagement. Methods: This study conducted a cross-sectional survey of 465 primary and secondary school teachers (PSST)… More >

  • Open Access

    ARTICLE

    The Growth Trajectory of Moral Disengagement in Junior High School Students: Influence of Trait Aggressiveness and Gender

    Xuezhi Liu1,2, Jianxiao Wu3, Lingjing Guo4, Ronghuan Wang5, Qiang Yang1, Baojuan Ye1,*, Xiufeng Guo6

    International Journal of Mental Health Promotion, Vol.27, No.3, pp. 303-318, 2025, DOI:10.32604/ijmhp.2025.060117 - 31 March 2025

    Abstract Objectives: The aim of this study was to verify the causal relationship between trait aggressiveness (TA) and moral disengagement (MD), know more about the growth trajectory of MD, and explore the effects of gender and TA on the growth trajectory. Methods: We used the Buss-Perry Aggression Questionnaire and Moral Disengagement Scale to survey 433 Chinese junior high school students longitudinally three times. Results: The results of the random intercept cross-lagged panel model (RI-CLPM) analysis indicated that TA positively predicted MD, while MD did not predict TA at the within-person level. Thus, TA could be considered an… More >

  • Open Access

    ARTICLE

    Potential Effect of Short Video Usage Intensity on Short Video Addiction, Perceived Mood Enhancement (‘TikTok Brain’), and Attention Control among Chinese Adolescents

    Jian-Hong Ye1,2, Junpeng Zheng3, Weiguaju Nong4, Xiantong Yang5,*

    International Journal of Mental Health Promotion, Vol.27, No.3, pp. 271-286, 2025, DOI:10.32604/ijmhp.2025.059929 - 31 March 2025

    Abstract Objectives: Short video addiction has emerged as a significant public health issue in recent years, with a growing trend toward severity. However, research on the causes and impacts of short video addiction remains limited, and understanding of the variable “TikTok brain” is still in its infancy. Therefore, based on the Stimulus-Organism-Behavior-Consequence (SOBC) framework, we proposed six research hypotheses and constructed a model to explore the relationships between short video usage intensity, TikTok brain, short video addiction, and decreased attention control. Methods: Given that students are considered a high-risk group for excessive short video use, we… More >

  • Open Access

    ARTICLE

    GC-MS Analysis, Antimicrobial Activity, and Genotoxicity of Pimpinella anisum Essential oil: In Vitro, ADMET and Molecular Docking Investigations

    Ahmed Qasem*

    Phyton-International Journal of Experimental Botany, Vol.94, No.3, pp. 809-824, 2025, DOI:10.32604/phyton.2025.062683 - 31 March 2025

    Abstract Pimpinella anisum, commonly known as anise, is generally used in both folk medicine and the culinary world. In traditional medicine, it is valued for its digestive, respiratory, and antispasmodic properties. This study aims to examine the volatile compounds and antibacterial effect of P. anisum essential oil (PAEO) as well as for the first time its genotoxicity employing both in vitro and computational approaches. Gas chromatography-mass spectrometry (GC-MS) analysis identified anethole as the principal compound, which comprises 92.47% of PAEO. PAEO was tested for its potential antibacterial properties against Bacillus subtilis ATCC 6633, Listeria innocua ATCC 33090, Staphylococcus aureus ATCC 29213, Klebsiella aerogenesMore >

  • Open Access

    ARTICLE

    Total Phenolic and Flavonoid Contents of Cymbocarpum widemannii and Their Antioxidant, Antimicrobial, DNA Damaging Activities

    Mehmet Fidan1, Behcet Inal2,*, Mesut Sırrı3, Bülent Hallaç4, Ulutas Mehmet Sefa1

    Phyton-International Journal of Experimental Botany, Vol.94, No.3, pp. 781-791, 2025, DOI:10.32604/phyton.2025.062171 - 31 March 2025

    Abstract The use of conventional herbal medicines is a rapidly expanding phenomenon in developed nations. For instance, 30%–50% of all drug use in China is attributed to traditional herbal preparations. Current study evaluated the antioxidant (DPPH, FRAP), total phenolic and flavonoid content, antibacterial activity, and DNA damage protective potential of aqueous and methanolic extracts obtained from the aerial parts and roots of Cymbocarpum wiedemannii Boiss., an endemic plant in Turkey. In antioxidant analyses, the methanolic extract of the aerial parts showed the highest %DPPH (73.38) and IC50 (3.46 mg/mL) values. The FRAP analysis revealed the highest iron-reducing… More > Graphic Abstract

    Total Phenolic and Flavonoid Contents of <i>Cymbocarpum widemannii</i> and Their Antioxidant, Antimicrobial, DNA Damaging Activities

  • Open Access

    ARTICLE

    Effects of Surface Herbs on the Growth of Populus L. Cutting Seedling, Soil Property and Ammonia Volatilization

    Chang Liu1,3, Chengcheng Yin1, Jinjin Zhang2, Haijun Sun1,3,*

    Phyton-International Journal of Experimental Botany, Vol.94, No.3, pp. 695-707, 2025, DOI:10.32604/phyton.2025.061790 - 31 March 2025

    Abstract To promote the growth of cutting seeding of poplar (Populus L.), nitrogen (N) fertilizer and surface weed managements were required. We here conducted a pot experiment to examine the effects of natural vegetation, barnyardgrass (Echinochloa Beauv.), and sesbania (Sesbania cannabina pers.) on the growth of poplar cutting seedlings, soil properties, and ammonia (NH3) volatilization under three N inputs (0, 0.5, and 1.5 g/pot, i.e., N0, N0.5, and N1, respectively). Results showed that N application promoted the growth of poplar cutting seedlings, including plant height, ground diameter, and biomass, compared with N0 treatment. Moreover, under N0, sesbania significantly increased… More >

  • Open Access

    ARTICLE

    Study on Optimization of Two-Stage Phase Change Heat Storage Coupled Solar-Air Source Heat Pump Heating System in Severe Cold Region

    Xueli Wang1, Yan Jia2,*, Degong Zuo3

    Energy Engineering, Vol.122, No.4, pp. 1603-1627, 2025, DOI:10.32604/ee.2025.062908 - 31 March 2025

    Abstract The development of efficient and clean heating technologies is crucial for reducing carbon emissions in regions with severe cold regions. This research designs a novel two-stage phase change heat storage coupled solar-air source heat pump heating system structure that is specifically designed for such regions. The two-stage heat storage device in this heating system expands the storage temperature range of solar heat. The utilization of the two-stage heat storage device not only makes up for the instability of the solar heating system, but can also directly meet the building heating temperature, and can reduce the… More > Graphic Abstract

    Study on Optimization of Two-Stage Phase Change Heat Storage Coupled Solar-Air Source Heat Pump Heating System in Severe Cold Region

  • Open Access

    ARTICLE

    Characterizing and Stage-Wise Differentiation of Coal Spontaneous Combustion in Deep Mines

    Haitao Wang1,2,*, Pengxin Zhang2, Weihao Li2, Baogang Li1, Xianghui Xiong1

    Energy Engineering, Vol.122, No.4, pp. 1561-1580, 2025, DOI:10.32604/ee.2025.062844 - 31 March 2025

    Abstract Deep mining, characterized by high stress, elevated geothermal gradients, and significant moisture content, significantly increases the risk of Coal Spontaneous Combustion (CSC), posing a major threat to mine safety. This study delves into the impact of these factors on the self-ignition properties of coal, leveraging data from four distinct mines in Heilongjiang Province, China: Shuangyashan Dongrong No. 2 Mine, Hegang Junde Coal Mine, Qitaihe Longhu Coal Mine, and Jixi Ronghua No. 1 Mine. We have honed the theoretical framework to account for variations in gas content during CSC. Our investigation, conducted through programmed temperature rise More >

  • Open Access

    REVIEW

    Research of Low-Carbon Operation Technologies for PEDF Parks: Review, Prospects, and Challenges

    Ziwen Cai1,2, Yun Zhao1,2, Zongyi Wang1,2, Tonghe Wang3,*, Yunfeng Li1,2, Hao Wang3

    Energy Engineering, Vol.122, No.4, pp. 1221-1248, 2025, DOI:10.32604/ee.2025.061452 - 31 March 2025

    Abstract With the severe challenges brought by global climate change, exploring and developing clean and renewable energy systems to upgrade the energy structure has become an inevitable trend in related research. The comprehensive park systems integrated with photovoltaic, energy storage, direct current, and flexible loads (PEDF) is able to play an important role in promoting energy transformation and achieving sustainable development. In order to fully understand the advantages of PEDF parks in energy conservation and carbon reduction, this paper summarizes existing studies and prospects future research directions on the low-carbon operation of the PEDF park. This… More >

Displaying 1-10 on page 1 of 3678. Per Page