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  • Open Access

    ARTICLE

    Investigating Transport Properties of Environmentally Friendly Azeotropic Binary Blends Based on Evaporation in Auto-Cascade Refrigeration

    Zhenzhen Liu, Hua Zhang*, Zilong Wang, Yugang Zhao

    Frontiers in Heat and Mass Transfer, Vol.22, No.4, pp. 1087-1105, 2024, DOI:10.32604/fhmt.2024.053851

    Abstract The exploration of performance and prediction of environmentally friendly refrigerant physical properties represents a critical endeavor. Equilibrium molecular dynamics simulations were employed to investigate the density and transport properties of propane and ethane at ultra-low temperatures under evaporative pressure conditions. The results of the density simulation of the evaporation conditions of the blends proved the validity of the simulation method. Under identical temperature and pressure conditions, increasing the proportion of R170 in the refrigerant blends leads to a density decrease while the temperature range in which the gas-liquid phase transition occurs is lower. The analysis More >

  • Open Access

    ARTICLE

    Exergy Analysis of a Solar Vapor Compression Refrigeration System Using R1234ze(E) as an Environmentally Friendly Replacement of R134a

    Zakaria Triki1, Ahmed Selloum1, Younes Chiba1, Hichem Tahraoui1,2, Dorsaf Mansour3, Abdeltif Amrane4,*, Meriem Zamouche5, Mohammed Kebir6, Jie Zhang7

    Frontiers in Heat and Mass Transfer, Vol.22, No.4, pp. 1107-1128, 2024, DOI:10.32604/fhmt.2024.052223

    Abstract Refrigeration plays a significant role across various aspects of human life and consumes substantial amounts of electrical energy. The rapid advancement of green cooling technology presents numerous solar-powered refrigeration systems as viable alternatives to traditional refrigeration equipment. Exergy analysis is a key in identifying actual thermodynamic losses and improving the environmental and economic efficiency of refrigeration systems. In this study exergy analyze has been conducted for a solar-powered vapor compression refrigeration (SP-VCR) system in the region of Ghardaïa (Southern Algeria) utilizing R1234ze(E) fluid as an eco-friendly substitute for R134a refrigerant. A MATLAB-based numerical model was… More >

  • Open Access

    ARTICLE

    Seed Priming with Potassium Nitrate Can Enhance Salt Stress Tolerance in Maize

    Bushra Rehman1, Asma Zulfiqar1, Houneida Attia2, Rehana Sardar3, Muneera A. Saleh2, Khalid H. Alamer4, Ibtisam M. Alsudays5, Faisal Mehmood6, Qamar uz Zaman7,*

    Phyton-International Journal of Experimental Botany, Vol.93, No.8, pp. 1819-1838, 2024, DOI:10.32604/phyton.2024.048780

    Abstract Salinity is a major abiotic stress that hinders plant development and productivity and influences agricultural yield. Seed priming is a technique used to boost germination and seedling growth under abiotic stress. A pot experiment was conducted to evaluate the impact of seed priming with potassium nitrate (KNO3) at various levels (0%, 0.50%, 1.00% and 1.50%) under salt stress (0, 75, 100 mM NaCl) on two maize verities (MNH360 and 30T60) for the growth, development and metabolic attributes results revealed that in maize variety MNH360, KNO3 priming’s significantly enhanced growth parameters than in maize variety 30T60 under… More >

  • Open Access

    ARTICLE

    Thermo-Mechanical, Physico-Chemical, Morphological, and Fire Characteristics of Eco-Friendly Particleboard Manufactured with Phosphorylated Lignin Addition

    Apri Heri Iswanto1,*, Harisyah Manurung1, Asma Sohail2, Lee Seng Hua3,9, Petar Antov4, Deded Sarip Nawawi5, Sarah Latifah5, Dewi Shafa Kayla5,6, Sukma Surya Kusumah6, Muhammad Adly Rahandi Lubis6, Linda Makovická Osvaldová7, Mohd. Hazwan Hussin8, Rangabhashiyam Selvasembian9, Lum Wei Chen10, Puji Rahmawati Nurcahyani6, Nam Hun Kim11, Widya Fatriasari6

    Journal of Renewable Materials, Vol.12, No.7, pp. 1311-1341, 2024, DOI:10.32604/jrm.2024.052172

    Abstract Lignin, lignosulfonate, and synthesized phosphorylated lignosulfonate were introduced as green fillers in citric acid-sucrose adhesives for bonding particleboard fabricated from areca leaf sheath (ALS). The characteristics of particleboards were compared to that of ultralow emitting formaldehyde (ULEF-UF). The fillers derived from Eucalyptus spp. kraft-lignin were added for flame retardancy enhancement. 10% of each lignin and modified lignin was added into the ULEF-UF and citric acid-sucrose bonded particleboards. Analyses applied to particleboards included thermal characteristics, X-ray diffraction analysis (XRD), morphological properties, Fourier transform infrared spectroscopy (FTIR), as well as physical, mechanical, and fire resistance characteristics of the… More > Graphic Abstract

    Thermo-Mechanical, Physico-Chemical, Morphological, and Fire Characteristics of Eco-Friendly Particleboard Manufactured with Phosphorylated Lignin Addition

  • Open Access

    ARTICLE

    Impact of Varying Blower Opening Degrees on Indoor Environment and Thermal Comfort

    Shengqiang Shi1,2,*, Abdelatif Merabtine3, Rachid Bennacer4, Julien Kauffmann2

    FDMP-Fluid Dynamics & Materials Processing, Vol.20, No.8, pp. 1703-1716, 2024, DOI:10.32604/fdmp.2024.050547

    Abstract At present, air handling units are usually used indoors to improve the indoor environment quality. However, while introducing fresh air to improve air quality, air velocity has a certain impact on the occupants’ thermal comfort. Therefore, it is necessary to explore the optimization of air-fluid-body interaction dynamics. In this study, the indoor air flow was changed by changing the opening and closing degree of the blower, and the thermal manikin is introduced to objectively evaluate the human thermal comfort under different air velocities. The main experimental results show that the air change rate increases with… More >

  • Open Access

    ARTICLE

    Impacts of Defoliation on Morphological Characteristics and Non-Structural Carbohydrates of Populus talassica × Populus euphratica Seedlings

    Mengxu Su1, Zhanjiang Han1,*, Zhen Zhao2, Xiaofeng Wu1, Jiaju Wu1

    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1689-1703, 2024, DOI:10.32604/phyton.2024.052814

    Abstract Leaves are important ‘source’ organs that synthesize organic matter, providing carbon sources for plant growth. Here, we used Populus talassica × Populus euphratica, the dominant species in ecological and timber forests, to simulate carbon limitation through artificial 25%, 50%, and 75% defoliation treatments and explore the effects on root, stem, and leaf morphology, biomass accumulation, and carbon allocation strategies. At the 60th d after treatment, under 25% defoliation treatment, the plant height, specific leaf weight, root surface area and volume, and concentrations of non-structural carbohydrates in stem and root were significantly increased by 9.13%, 20.00%, 16.60%,… More >

  • Open Access

    ARTICLE

    Summer Warming Limited Bud Output Drives a Decline in Daughter Shoot Biomass through Reduced Photosynthetis of Parent Shoots in Leymus chinensis Seedlings

    Song Gao1, Ruocheng Xu2, Lin Li3, Jiao Wang2, Nian Liu2, Johannes M. H. Knops4, Junfeng Wang2,*

    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1667-1675, 2024, DOI:10.32604/phyton.2024.051548

    Abstract Understanding how summer warming influences the parent and daughter shoot production in a perennial clonal grass is vital for comprehending the response of grassland productivity to global warming. Here, we conducted a simulated experiment using potted Leymus chinensis, to study the relationship between the photosynthetic activity of parent shoots and the production of daughter shoots under a whole (90 days) summer warming scenario (+3°C). The results showed that the biomass of parents and buds decreased by 25.52% and 33.45%, respectively, under warming conditions. The reduction in parent shoot biomass due to warming directly resulted from decreased… More >

  • Open Access

    ARTICLE

    Genome-Wide Discovery and Expression Profiling of the SWEET Sugar Transporter Gene Family in Woodland Strawberry (Fragaria vesca) under Developmental and Stress Conditions: Structural and Evolutionary Analysis

    Shoukai Lin1,3,4,*, Yifan Xiong2, Shichang Xu1,2, Manegdebwaoaga Arthur Fabrice Kabore2, Fan Lin5, Fuxiang Qiu1,2,*

    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1485-1502, 2024, DOI:10.32604/phyton.2024.050990

    Abstract The SWEET (sugar will eventually be exported transporter) family proteins are a recently identified class of sugar transporters that are essential for various physiological processes. Although the functions of the SWEET proteins have been identified in a number of species, to date, there have been no reports of the functions of the SWEET genes in woodland strawberries (Fragaria vesca). In this study, we identified 15 genes that were highly homologous to the A. thaliana AtSWEET genes and designated them as FvSWEET1FvSWEET15. We then conducted a structural and evolutionary analysis of these 15 FvSWEET genes. The phylogenetic analysis enabled us… More >

  • Open Access

    ARTICLE

    White Matter Lesions in Young-Middle Aged Migraineurs with Patent Foreman Ovale: A Case-Control Study

    Yang Hua#, Jinyu Sun#, Yuxuan Lou, Hao Zhang, Jing Shi*, Wei Sun*

    Congenital Heart Disease, Vol.19, No.3, pp. 279-291, 2024, DOI:10.32604/chd.2024.051190

    Abstract Background: White matter lesion (WML) is common in aging brain and is associated with cognitive impairment and dementia. However, recent studies reported an association between patent foramen ovale (PFO) and WML in migraineurs, especially in young, middle-aged migraineurs. Our retrospective, case-control study aims to describe the clinical characteristics of WML in this population and to explore potential risk factors. Methods: 226 patients with migraine and PFO were consecutively initially screened. Relevant factors were selected by the least absolute shrinkage and selection operator (LASSO) regression and multivariable logistic regression model. A Nomogram was employed to visualize… More >

  • Open Access

    ARTICLE

    Abaca Fiber as a Potential Reinforcer for Acoustic Absorption Material at Middle-High Frequencies

    Susilo Indrawati*, Lila Yuwana, Suyatno, Mochamad Zainuri, Darminto*

    Journal of Renewable Materials, Vol.12, No.5, pp. 909-921, 2024, DOI:10.32604/jrm.2024.048452

    Abstract Recently, abaca fibers have become the focus of specialized research due to their intriguing characteristics, with their outstanding mechanical properties being a particularly notable. In the conducted study, the abaca fibers underwent a preliminary treatment process involving an alkaline solution, which was composed of 0.5% sodium hydroxide (NaOH) and 50% acetic acid (CHCOOH). This process entailed immersing each fiber in the solution for a period of one hour. This treatment led to a 52.36% reduction in lignin content compared to the levels before treatment, resulting in a dramatic decrease in the full width at half… More > Graphic Abstract

    Abaca Fiber as a Potential Reinforcer for Acoustic Absorption Material at Middle-High Frequencies

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