ABDUL SAMAD¹, KANVAL SHAUKAT^1,*, MAHMOOD-UR-REHMAN ANSARI², MEREEN NIZAR¹, NOREEN ZAHRA³, AMBREEN NAZ⁴, HAFIZ MUHAMMAD WALEED IQBAL⁵, ALI RAZA⁶, VLADAN PESIC⁷, IVICA DJALOVIC⁸

BIOCELL, Vol.47, No.3, pp. 523-532, 2023, DOI:10.32604/biocell.2023.023704

Abstract Salinity is one of the major abiotic factors that limit the growth and productivity of plants. Foliar application of plant growth regulators (PGRs) may help plants ameliorate the negative impacts of salinity. Thus, a field experiment was conducted at the Botanical Garden University of Balochistan, Quetta, to explore the potential role of PGRs, i.e., moringa leaf extract (MLE; 10%), proline (PRO; 1 µM), salicylic acid (SA; 250 µM), and thiourea (TU; 10 mM) in ameliorating the impacts of salinity (120 mM) on Plantago ovata, an important medicinal plant. Salinity hampered plant photosynthetic pigments and metabolites but elevated oxidative parameters. However,… More >

Jianqiao Yu^1,*, Hongxia Qiao^1,2, Theogene Hakuzweyezu¹, Feifei Zhu¹

Journal of Renewable Materials, Vol.10, No.11, pp. 2973-2987, 2022, DOI:10.32604/jrm.2022.019620

Abstract This study was designed to solve the problem of magnesium hazards due to potash extraction in the salt lake region. Using basalt fiber (BF) as the reinforcement material and magnesium oxychloride cement (MOC) as the gelling material, a BF/MOC composite material was prepared. Firstly, the effect of BF addition content on the basic mechanical properties of the composites was investigated. Then, through the salt spray corrosion test, the durability damage deterioration evaluation analysis was carried out from both macroscopic and microscopic aspects using mass change, relative dynamic modulus of elasticity (RDME) change, SEM analysis and FT-IR analysis. Finally, a GM(1,… More >

Zhongjia Li¹, Jianfeng Pan^1,*, Hongjun Liu¹, Baowei Fan¹, Wenming Yang², Abiodun Oluwaleke Ojo¹

Energy Engineering, Vol.118, No.3, pp. 581-603, 2021, DOI:10.32604/EE.2021.014378

Abstract In order to improve the performance of the rotary engine, this paper has designed a new type of dual-pit rotary engine combustion chamber structure, and compares the combustion and emission characteristics with the rotary engine with a traditional combustion chamber. The existence of the dual-pit combustion chamber strengthens the overall vortex intensity in the cylinder, effectively promotes the mixing process of fuel and air in the cylinder, the maximum combustion pressure in the cylinder increased by 8.6%, significantly increases the diffusion combustion speed, and significantly improves the dynamic performance of the rotary engine. On this basis, the effects of fuel… More >

Yu Liu, Hongtao Kao^*

Journal of Renewable Materials, Vol.9, No.2, pp. 269-294, 2021, DOI:10.32604/jrm.2021.012015

Abstract In order to study the combustion characteristics, NOx emission and NH₃ slip in a new trinal-sprayed precalciner, the simulations of combustion and aqueous urea solution based selective non-catalytic reduction (SNCR) process were conducted by computational fluid dynamics in this precalciner, the effects of different injection heights, different injection flow rates and stratified injection under different flow rates on SNCR process were studied. The results showed that the flow field was symmetrically distributed in the precalciner, and the flue gas from the rotary kiln formed the recirculation region on both sides of the cone body, which increased the residence time of… More >

Yanju Wei^1,*, Jie Zhang¹, Shengcai Deng¹, Yajie Zhang¹, Yajing Yang², Hao Chen³

Energy Engineering, Vol.118, No.1, pp. 73-87, 2021, DOI:10.32604/EE.2020.012482

Abstract The diffusion of fuel spray in swirl flow is vital for the combustion of diesel engine, however, the researches on this is still mysterious due to the obstacles on direct investigations on a real engine. The research of intake swirl in engine at present normally use CFD simulation or based on data analysis of combustion and exhaust emission, the specific mixing process of fuel in swirl flow still not very clear. In this paper, a rapid compression machine (RCM) with an optical combustion chamber was established with the mean compression velocity of 7.55 m/s. Three kinds of flow fields, including… More >

Chang Su^1,2, Qiangqiang Zheng^3,*, Wukun Zhao⁴

FDMP-Fluid Dynamics & Materials Processing, Vol.16, No.5, pp. 947-960, 2020, DOI:10.32604/fdmp.2020.09676

Abstract In this research, the dynamics of wet spray nozzles with different geometries, used to accelerate shotcrete, are investigated on the basis of a suitable three-dimensional mathematical model and related numerical method. Simulations have been conducted in the frame of the SIMPLEC algorithm. The k-ε turbulence model has been used to account for turbulent effects. The study shows that when the angle of the convergent section is less than 3°, it has a scarce effect on the dynamics of the jet of shotcrete; with the increase of the convergence angle, the shotcrete jet velocity decreases and the nozzle wear increases; when… More >

Yuli D. Chashechkin, Andrey Y. Ilinykh^*

FDMP-Fluid Dynamics & Materials Processing, Vol.16, No.4, pp. 801-811, 2020, DOI:10.32604/fdmp.2020.09168

Abstract The interaction of a falling drop (diluted aqueous solution of ink in various concentrations) with a target fluid (partially degassed tap water) has been tracked by means of high-resolution video recording and photography. The experimental setup has carefully been prepared in order to preserve the axial symmetry of initial conditions. Three regimes of interaction have been identified accordingly (depending on the drop velocity as controlled by the distance of fall): rapid droplet coalescence, rebound with the conservation of the drop volume and shape, and partial coalescence. Previous findings are recovered and confirmed, and enriched with heretofore unseen observations of complex… More >

Khan A¹, I Ahmad¹, A Shah¹, F Ahmad², A Ghani¹, M Nawaz¹, F Shaheen¹, HU Fatima¹, F Pervaiz¹, S Javed¹, F Hayat¹, H Nawaz¹, R Zubair¹

Phyton-International Journal of Experimental Botany, Vol.82, pp. 281-287, 2013, DOI:10.32604/phyton.2013.82.281

Abstract Salinity adversely affects physiological and biochemical processes in plants. Plants might have different methods to decrease the harmful effects of salinity, such as the accumulation of osmolytes and antioxidant compounds. An experiment was conducted in the Department of Biological Sciences, University of Sargodha, Pakistan to determine the effect of different levels of phosphorus (P) on wheat under saline conditions. Data of shoot and root fresh and dry weights, chlorophyll contents, different ion accumulation and yield components of wheat were collected. When different levels of phosphorus were applied on wheat plant under saline conditions, phosphorus reduced the effect of salinity. Applications… More >

Muñoz FF, VE Ruiz, CA Bouzo

Phyton-International Journal of Experimental Botany, Vol.86, pp. 131-136, 2017, DOI:10.32604/phyton.2017.86.131

Abstract The aim of this work was to study the effect of preharvest foliar spraying with calcium nitrate solutions on the fruit melon quality. Treatments included a combination of five solutions with Ca(NO₃)₂ (0.0; 1.3; 2.6; 5.2 and 10.5 g/L) and two postharvest storage environments [(24.0 ± 1.5 °C and 6.4 ± 0,8 mbar of vapor pressure deficit (VPD), and 10.0 ± 0.5 °C and 3.0 ± 0.5 mbar (VPD)]. Fruits stored at 24 °C for 11 days had the lowest water loss with treatments 1.3 and 2.6 g/L Ca (NO₃)₂. It was observed that at both 24 °C and 10… More >

R. Ghelichi¹, S. Bagherifard¹, I. Fernandez Parienete², M.Guagliano^1,3, Simone Vezzù⁴

Structural Durability & Health Monitoring, Vol.6, No.1, pp. 17-30, 2010, DOI:10.3970/sdhm.2010.006.017

Abstract Coating deposition processes such as cold spraying are commonly employed to increase wear and fatigue resistance and consequently to enhance longevity of engineering components. Such processes typically introduce residual stresses into the coated surface, which in turn affect efficiency of coatings and play an important role in coating durability. In fact residual stresses are the key parameter to obtain compact and well-adherent coatings. They can modify several coating properties such as adhesion, structure, toughness, hardness reflecting on the macroscopic chemical and mechanical behavior of the coating.
Present study describes alteration of residual stress state of two types of aluminum coatings… More >