Feng Shen^1,*, Yang Zhao¹, Bingyi Li¹, Kai Wu²

CMES-Computer Modeling in Engineering & Sciences, Vol.138, No.1, pp. 221-243, 2024, DOI:10.32604/cmes.2023.029159 - 22 September 2023

Abstract The calculation of the factor of safety (FOS) is an important means of slope evaluation. This paper proposed an improved double strength reduction method (DRM) to analyze the safety of layered slopes. The physical properties of different soil layers of the slopes are different, so the single coefficient strength reduction method (SRM) is not enough to reflect the actual critical state of the slopes. Considering that the water content of the soil in the natural state is the main factor for the strength of the soil, the attenuation law of shear strength of clayey soil… More >

Wankui Ni¹, Jiaxin Zhong^1,2, Haiman Wang^1,*

Journal of Renewable Materials, Vol.11, No.4, pp. 1699-1814, 2023, DOI:10.32604/jrm.2022.023805 - 01 December 2022

Abstract Fiber-reinforced soils have been of great interest to experimenters for building foundations’strength performance, time, and economy. This paper investigates the effects of water content and polypropylene fiber dosage and length on loess’s unconfined compressive strength (UCS) according to the central composite response surface design test procedure. The water content is 11%–25%, the mass ratio of fiber to soil is 0.1%–0.9%, and the fiber length ranges from 6–18 mm. The response surface method (RSM) developed full quadratic models of different variables with response values. After analysis of variance (ANOVA), the mathematical model developed in this study More > Graphic Abstract

Tingting Huo¹, Jiaquan Xue^2,*, Zhi’an Fu³

FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.2, pp. 437-450, 2023, DOI:10.32604/fdmp.2022.020696 - 29 August 2022

Abstract The properties of polyurethane concrete containing a large amount of fly ash are investigated, and accordingly, a model is introduced to account for the influence of fly ash fineness, water ratio, and loss of ignition (LOI) on its mechanical performances. This research shows that, after optimization, the concrete has a compressive strength of 20.8 MPa, a flexural strength of 3.4 MPa, and a compressive modulus of elasticity of 19.2 GPa. The main factor influencing 28 and 90 d compressive strength is fly ash content, water-binder ratio, and early strength agent content. More >

Abdul Awal Chowdhury Masud¹, Md. Fazlul Karim¹, M. H. M. Borhannuddin Bhuyan², Jubayer Al Mahmud³, Kamrun Nahar⁴, Masayuki Fujita⁵, Mirza Hasanuzzaman^1,*

Phyton-International Journal of Experimental Botany, Vol.90, No.2, pp. 353-372, 2021, DOI:10.32604/phyton.2021.013259 - 07 February 2021

Abstract Drought is the most common form of abiotic stress that reduces plant growth and productivity. It causes plant injuries through elevated production of reactive oxygen species (ROS). Potassium (K) is a vital plant nutrient that notably ameliorates the detrimental effect of drought stress in the plant. A pot experiment was conducted at the Laboratory of Plant Stress Responses, Faculty of Agriculture, Kagawa University, Japan, under controlled environment of green house to explore the role of K in mitigating drought severity in wheat (Triticum asevitum L.) seedlings. Three days after germination, seedlings were exposed to three water… More >

Shaozhi Zhang, Ruoyi Xie, Mengjie Xu, Guangming Chen^*

FDMP-Fluid Dynamics & Materials Processing, Vol.16, No.6, pp. 1177-1189, 2020, DOI:10.32604/fdmp.2020.010352 - 17 December 2020

Abstract Pre-freezing is an important stage in freeze-drying processes. For the lyophilization of a cell, freezing not only plays a role for primary dehydration, but it also determines the amount of residual (intracellular or extracellular) water, which in turn can influence the solution properties and the choice of operation parameters. The freezing of human platelets in lyoprotectant solution is theoretically investigated here. A two-parameter model and an Arrhenius expression are used to describe cell membrane permeability and its temperature dependency. It is assumed that the intracellular solution is composed of four components: sodium chloride, trehalose, serum… More >

Monika Sood¹, Shanti S. Sharma¹, Joginder Singh¹, Ram Prasad^2,3,*, Dhriti Kapoor^1,*

Phyton-International Journal of Experimental Botany, Vol.89, No.1, pp. 71-86, 2020, DOI:10.32604/phyton.2020.07180 - 01 March 2020

Abstract The heavy metals present in the environment accumulate in the plants and affect their productivity and yield. By entering the food chain, metals cause several serious health problems in human beings as well as in other organisms. Indole acetic acid (IAA) is known to act as a signaling molecule between symbiotic association of metal accumulating plants and plant growth promoting rhizobacteria (PGPR). Present study demonstrated a protective role of IAA against surplus Zinc (Zn)-induced toxicity to Hordeum vulgare seedlings. Elevated Zn concentrations suppressed the plant growth, caused a reduction in leaf relative water contents (RWC) and More >

Naz N¹, F Durrani¹, Z Shah², NA Khan¹, I Ullah¹

Phyton-International Journal of Experimental Botany, Vol.87, pp. 225-230, 2018, DOI:10.32604/phyton.2018.87.225

Abstract The progress and development of crops like potato are harmfully affected by increased heat stress throughout the world. Stress caused by increased heat adversely affects germination and seedling growth which result in a reduced crop development and yield. The present research was carried out to know the influence of heat stress on growth indices and physiological processes of potato (Solanum tuberosum L.). The heat stresses C- Control (25 °C); T1-45 °C, and T2-40 °C were applied in separate growth chambers to the plants, after 25 days from their germination. Increased heat stress considerably decreased the chlorophyll More >

Jabbari H¹, M Gholamhosseini¹, M Naeemi², A Nasiri³

Phyton-International Journal of Experimental Botany, Vol.87, pp. 133-142, 2018, DOI:10.32604/phyton.2018.87.133

Abstract Two experiments were performed in 2011-2012 to investigate the response of three oilseed rape cultivars to drought stress, grown under two climate conditions in Iran (cold and hot climates). The experiments were conducted using a randomized complete-block design arranged in split-plot with three replicates. The irrigation treatments (FI: full irrigation; WIF: withholding irrigation at flowering stage, and WIS: withholding irrigation at the silique formation stage until physiological maturity) were allocated to main plots, whereas subplots consisted of the oilseed rape cultivars: early maturating (GKH2005), relatively late maturing (Opera) and late maturing (Okapi). Drought caused a… More >

Wenqi Zhang¹, Yunqing Gu^1,*, Jiegang Mou¹

FDMP-Fluid Dynamics & Materials Processing, Vol.14, No.4, pp. 243-258, 2018, DOI:10.32604/fdmp.2018.03836

Abstract It is of great significance for the production of micro robots and new sensors to develop actuators with “muscle” properties. As a kind of electroactive polymers (EAPs), IPMC (ionic polymer-metal composite) can exhibit significant deformation for very low electrical excitation. These composites, known as the “artificial muscle”, can be regarded as intelligent bionic materials. With regard to the mechanism of deformation of IPMC, a large number of experimental studies have proved that the variety of electrodes and water contents relating to IPMC have great influence on its electro-mechanical and mechanical properties. Recent research results about… More >

Taein Ohm^1*, Jongseong Chae¹, Younghyo Kim¹, Seunghyun Moon²

Journal of Renewable Materials, Vol.5, Suppl.1, pp. 13-21, 2017, DOI:10.7569/JRM.2017.634127

Abstract With the dramatic increase in the quantity of organic wastes, economic and environmentally friendly technologies are urgently required for reducing the volume of sludge and remediating its harmful impacts. In this study, drying experiments were performed on sludge through fry-drying technology and the characteristics of the resulting fuels were investigated to identify proper methods for treating sewage sludge, wastewater sludge, swine excreta, and food waste and converting them into fuels. The four types of organic wastes were fry-dried, and the best drying conditions were found to be 140 °C for 8 min for sewage sludge More >