Yuhang Li¹, Li Sun¹, Tao Wang¹, Bingjun Yu², Zhihong Gao³, Xiaochun Shu¹, Tengyue Yan¹, Weibing Zhuang^1,2,*, Zhong Wang^1,*

Phyton-International Journal of Experimental Botany, DOI:10.32604/phyton.2025.063647

Abstract bHLH transcription factors, widely exist in various plants, and are vital for the growth and development of these plants. Among them, many have been implicated in anthocyanin biosynthesis across various plants. In the present study, a PdbHLH57 gene, belonging to the bHLH IIIf group, was characterized, which was isolated and cloned from the colored-leaf poplar ‘Zhongshancaiyun’ (ZSCY). The cDNA sequence of PdbHLH57 was 1887 base pairs, and the protein encoded by PdbHLH57 had 628 amino acids, the isoelectric point and molecular weight of which were 6.26 and 69.75 kDa, respectively. Through bioinformatics analysis, PdbHLH57 has been classified… More >

Pelita Ningrum¹, Sri Hidayati^1,*, Wahyu Hidayat², Samsul Rizal¹, Erika Ayu Agustiany³, Emma Rochima^4,5, Lee Seng Hua⁶, Antonio Di Martino⁷, Apri Heri Iswanto⁸, Widya Fatriasari^3,5,*

Journal of Renewable Materials, DOI:10.32604/jrm.2025.02025-0006

Abstract Biodegradable plastics are types of plastics that can decompose into water and carbon dioxide the actions of living organisms, mostly by bacteria. Generally, biodegradable plastics are obtained from renewable raw materials, microorganisms, petrochemicals, or a combination of all three. This study aims to develop an innovative bioplastic by combining chitosan and lignin. Bioplastic was prepared by casting method and characterized by measuring the mechanical properties like tensile strength, Young’s modulus, and elongation at break. The chemical structure, together with the interactions among chitosan and lignin and the presence of new chemical bonds, were evaluated by… More > Graphic Abstract

Jun Qiu¹, Jinling Wang^2,*

International Journal of Mental Health Promotion, DOI:10.32604/ijmhp.2025.059951

Abstract Objectives: Suicidal ideation (SI) among university students is a growing concern, influenced by anxiety, depression, and bullying. However, family closeness and peer support may act as protective factors, reducing the risk of SI. Therefore, this study aims to investigate the key factors influencing SI among university students, focusing on the effects of anxiety, depression, and bullying, along with the roles of family closeness and peer support. The research also explores the interactions and mechanisms between these variables. Methods: A sample of 318 university students was surveyed, evaluating six main factors: anxiety, depression, bullying, family closeness, peer… More >

Sadaf Gul Unar¹, Shoaib Ahmed Khatri^1,*, Nayyar Hussain Mirjat¹, Muhammad Faraz Arain¹, Syed Rafay Ahmed Zaidi¹, Laveet Kumar²

Frontiers in Heat and Mass Transfer, DOI:10.32604/fhmt.2025.063937

Abstract This research focuses on developing innovative hybrid solar dryers that combine solar Photovoltaic (PV) and solar thermal systems for sustainable food preservation in Pakistan, addressing the country’s pressing issues of high post-harvest losses and unreliable energy sources. The proposed active hybrid solar dryer features a drying cabinet, two Direct Current (DC) fans for forced convection, and a resistive heating element powered by a 180 W solar PV panel. An energy-storing battery ensures continuous supply to the auxiliaries during periods of low solar irradiance, poor weather conditions, or nighttime. Tomatoes, a delicate and in-demand crop, were… More >

Yiming Rongyang¹, Chengyu Ji¹, Xiangdong Ding^2,*, Jun Gao¹, Jianjian Wei^2,3

Frontiers in Heat and Mass Transfer, DOI:10.32604/fhmt.2025.063785

Abstract The effect of gradient exhaust strategy and blind plate installation on the inhibition of backflow and thermal stratification in data center cabinets is systematically investigated in this study through numerical methods. The validated Re-Normalization Group (RNG) k-ε turbulence model was used to analyze airflow patterns within cabinet structures equipped with backplane air conditioning. Key findings reveal that server-generated thermal plumes induce hot air accumulation at the cabinet apex, creating a 0.8°C temperature elevation at the top server’s inlet compared to the ideal situation (23°C). Strategic increases in backplane fan exhaust airflow rates reduce server 1’s inlet… More >

Sajjad Tariq A. Shafi, Mohammed K. Al-Saadi, Ameer Abed Jaddoa^*

Frontiers in Heat and Mass Transfer, DOI:10.32604/fhmt.2025.063118

Abstract To improve the heat transfer rate and thermal performance of the solar air heater due to low efficiency, new techniques, such as artificial roughness, barriers, and obstacles, should be used to increase the heat exchange between the fluid and the absorber. In this research, perforated V-shaped blockages with new geometric shapes, which are circular, hexagonal, square, rectangular, and triangular, were used. They were fixed on the absorber plate inside the channel with dimensions of 1.5 m × 0.5 m × 0.05 m, which increased the exit temperature of the air passing through the channel. The… More >

Guoguang Li, Qi Wu, Hanli Bi, Zhichao Jia, Hongxing Zhang^*, Jinyin Huang, Jianyin Miao

Frontiers in Heat and Mass Transfer, DOI:10.32604/fhmt.2025.062191

Abstract The loop heat pipe with a flat evaporator is mainly divided into two forms: rectangular evaporator and disk-shaped evaporator. The rectangular evaporator has advantages such as low heat leakage, a thin shell, and a large contact area compared to the disk-shaped evaporator. However, most of the research on rectangular evaporators focuses on working fluids such as water, methanol, and acetone, when these working fluids are in operation, the internal pressure of the evaporator is less than atmospheric pressure. Ammonia, propylene, and other working fluids can also be utilized in the loop heat pipe, these working… More >

Jacob Manyuon Deng^1,*, Cyrus Wabuge Wekesa², Khan Jean De Dieu Hakizimana¹, Joseph Nzabahimana³

Energy Engineering, DOI:10.32604/ee.2025.063398

Abstract Energy access remains a critical challenge in rural South Sudan, with communities heavily relying on expensive and unfriendly environmental energy sources such as diesel generators and biomass. This study addresses the predicament by evaluating the feasibility of renewable energy-based decentralized electrification in the selected village of Doleib Hill, Upper Nile, South Sudan. Using a demand assessment and the Multi-Tier Framework (MTF) approach, it categorizes households, public facilities, private sector, Non-Governmental Organizations (NGOs) and business energy needs and designs an optimized hybrid energy system incorporating solar Photovoltaic (PV), wind turbines, batteries, and a generator. The proposed… More >

Linlan Chang¹, Win-Jet Luo^1,2, Indra Permana², Bowo Yuli Prasetyo³, Alya Penta Agharid¹, Fujen Wang^2,*

Energy Engineering, DOI:10.32604/ee.2025.062209

Abstract Heating, Ventilation, and Air Conditioning (HVAC) systems are critical for maintaining thermal comfort in office environments which also crucial for occupant well-being and productivity. This study investigates the impact of integrating ceiling fans with higher air conditioning setpoints on thermal comfort and energy efficiency in office environments. Field measurements and questionnaire surveys were conducted to evaluate thermal comfort and energy-saving potential under varying conditions. Results show that increasing the AC setpoint from 25°C to 27°C, combined with ceiling fan operation, reduced power consumption by 10%, achieving significant energy savings. Survey data confirmed that 85% of… More >

Danijel Pavković^*, Pietro Kristović, Mihael Cipek, Dragutin Lisjak

Energy Engineering, DOI:10.32604/ee.2025.061916

Abstract In deep drilling applications, such as those for geothermal energy, there are many challenges, such as those related to efficient operation of the drilling fluid (mud) pumping system. Legacy drilling rigs often use paired, parallel-connected independent-excitation direct-current (DC) motors for mud pumps, that are supplied by a single power converter. This configuration results in electrical power imbalance, thus reducing its efficiency. This paper investigates this power imbalance issue in such legacy DC mud pump drive systems and offers an innovative solution in the form of a closed-loop control system for electrical load balancing. The paper… More >