Tech Science Press

Time 2020-10-09 13:04:56

Web Name: Tech Science Press

WebSite: http://www.techscience.com

ID:75917

Keywords:

Tech,Science,Press,

Description:

Feiyu Li1, Siqi Zuo1, Yongzhou Chi1, Chunying Du1, Zhaopeng Shen1, Xihong Han2,3, Xiaohui Wang2,*, Peng Wang1,* Journal of Renewable Materials, Vol.8, No.11, pp. 1519-1529, 2020, DOI:10.32604/jrm.2020.011453 Abstract Drought is one of the major abiotic stresses that affect plant growth andreduce agricultural productivity. Use of algal extract as a biostimulant is gainingincreased attention from researchers. This study aimed to investigate the potentialof Ulva prolifera extract (UE) as a biostimulant when enzymatically extractedunder conditions of water deficit. UE treatments (0.02%, 0.06%, and 0.1%) significantly improved the shoot length, root length, and dry weight of roots after120 h of drought stress relative to that in treatment with the negative control.An increase in catalase (CAT) and peroxidase (POD) activity was also observedthat resulted in Yanrong Zhao1,2,3,#, Ping Chen1,4,*,#, Shifeng Wang5, Yaxiong Ji3,4, Yuanhao Wang3,4,*, Bolin Wu1,2, Rongjin Liu1 Journal of Renewable Materials, Vol.8, No.11, pp. 1531-1541, 2020, DOI:10.32604/jrm.2020.011462 Abstract Bayer red mud (BRM) is a kind of industrial solid waste characterizedby huge volume and high alkalinity. Its disposal generates serious environmentalpollution and occupies a large number of farmland. The utilization and recyclingof BRM is currently a crucial issue and needs to be addressed as soon as possible.The chemical composition of BRM is similar to cement clinker. In this study, thefeasibility of preparing Belite-ferroaluminate clinker (BFAC) with different BRMwas explored. The physical properties, mechanics performance, radioactivitylevels and trace harmful metals leaching were measured. XRD, BEI and EDSwere used to characterize the mineral Ling Wang1,2, Shenglong Jiang2, Chenchen Huang2, Pengyuan Dai2, Fenghua Liu2,*, Xiaopeng Qi1, Gaojie Xu2 Journal of Renewable Materials, Vol.8, No.11, pp. 1505-1518, 2020, DOI:10.32604/jrm.2020.010544 Abstract The paper discusses the mechanical and thermal performance manifested in natural nanorods attapulgite (ATP) reinforced Acrylonitrile butadienestyrene (ABS) nanocomposites in the process of fused deposition modeling(FDM). Molten extrusion technique was taken to manufacture the filaments ofABS/organic-attapulgite (OAT) nanocomposites with different mass fractionand the printing operation was made by one commercial FDM three-dimensional(3D) printer. Results indicate that the mechanical performance of these FDM 3Dprinted specimens are improved obviously via the introduction of OAT, and tensile strength of the ABS/OAT nanocomposites parts with only 2 wt% OAT addition is enhanced by 48.1%. At the same time, Raimundo N. Lima Júnior1, João L. I. O. Almeida1, Jones de Andrade2, Flávia O. M. S. Abreu1,* Journal of Renewable Materials, Vol.8, No.11, pp. 1489-1504, 2020, DOI:10.32604/jrm.2020.011629 Abstract Biocoagulants emerges as a promising technology in water treatment,in order to exploit renewable and biodegradable materials. The present work aimsto study the coagulant action of chitosan and carboxymethylchitosan on waterwith very high turbidity (above 300 NTU), contrasting the physicochemicalresults with those obtained for aluminum sulphate. Carboxymethylchitosan wasproduced by the Williamson’s ethers synthesis and characterized by potentiometric titration, FTIR and 1H-NMR. The coagulant tests were performed usingsynthetic water in a Jar-test equipment, through the induction of high and lowvelocity gradients, followed by sedimentation. The results showed turbidity andcolor removal efficiencies above 99% Yuan Zhang1, Ping Li1, Yiqiang Wu1,2, Guangming Yuan1,2, Xianjun Li1,2, Yingfeng Zuo1,2,* Journal of Renewable Materials, Vol.8, No.11, pp. 1473-1488, 2020, DOI:10.32604/jrm.2020.011788 Abstract The Chinese fir wood was impregnated using a cyclic increasingpressure method (CIPM) with phenolic prepolymers as the impregnating modifier.Unmodified Chinese fir and progressive increasing-pressure method (PIPM)impregnated Chinese fir were used as reference samples and were compared andanalyzed. The product’s chemical structure, internal morphology, crystal structure,and heat resistance were characterized. The transversal and longitudinal sectionsshowed better filling effects, so that it bore greater external loading and reducedthe water storage space. CIPM infused more phenolic prepolymer into the Chinesefir. Not only producing more physical filling but also forming more hydrogen bondassociations and chemical bond Journal of Renewable Materials, Vol.8, No.11, pp. 1443-1472, 2020, DOI:10.32604/jrm.2020.012113 Abstract CeO2, as a significant functional material, Has a widespread applicationin many fields due to its excellent properties. In this review, we sum up a seriousof methods to prepare and differentiate nanostructured cerium oxide with variousmorphologies based on dimensionality and its main applications in industry. Wemainly summary the different strategies to synthetic the CeO2 with 0-D, 1-D, 2-Dand 3-D and the key parameters which may affect the nanostructures. We hopethat this review helps researchers master can look up CeO2 related knowledgemore quickly upon the synthetic methods and comparing various morphologiesor fabricating ways to Xiangao Jiang1, Megan Coffee2, 3, *, Anasse Bari4, *, Junzhang Wang4, Xinyue Jiang5, Jianping Huang1, Jichan Shi1, Jianyi Dai1, Jing Cai1, Tianxiao Zhang6, Zhengxing Wu1, Guiqing He1, Yitong Huang7 CMC-Computers, Materials & Continua, Vol.63, No.1, pp. 537-551, 2020, DOI:10.32604/cmc.2020.010691 20 March 2020 Abstract The virus SARS-CoV2, which causes coronavirus disease (COVID-19) has become a pandemic and has spread to every inhabited continent. Given the increasing caseload, there is an urgent need to augment clinical skills in order to identify from among the many mild cases the few that will progress to critical illness. We present a first step towards building an artificial intelligence (AI) framework, with predictive analytics (PA) capabilities applied to real patient data, to provide rapid clinical decision-making support. COVID-19 has presented a pressing need as a) clinicians are still developing clinical acumen to this novel disease and b) resource limitations Abstract This study determines the natural frequencies of the lock gate structure,considering the coupled effect of reservoir fluid on one side using the finite element method (FEM). The gate is assumed to be a uniformly thick plate, and itsmaterial is isotropic, homogeneous, and elastic. The reservoir fluid is assumedto be inviscid and incompressible in an irrotational flow field. The length of thereservoir domain is truncated using the far boundary condition by adopting theFourier series expansion theory. Two different assumptions on the free surface,i.e., undisturbed and linearized, are considered in the fluid domain analysis.The computer CMC-Computers, Materials & Continua, Vol.62, No.3, pp. 1053-1075, 2020, DOI:10.32604/cmc.2020.08675 24 February 2020 Abstract Web information system (WIS) is frequently-used and indispensable in daily social life. WIS provides information services in many scenarios, such as electronic commerce, communities, and edutainment. Data cleaning plays an essential role in various WIS scenarios to improve the quality of data service. In this paper, we present a review of the state-of-the-art methods for data cleaning in WIS. According to the characteristics of data cleaning, we extract the critical elements of WIS, such as interactive objects, application scenarios, and core technology, to classify the existing works. Then, after elaborating and analyzing each category, we summarize the descriptions and challenges CMC-Computers, Materials & Continua, Vol.62, No.2, pp. 679-694, 2020, DOI:10.32604/cmc.2020.08552 19 January 2020 Abstract Assessing the age of an individual via bones serves as a fool proof method in true determination of individual skills. Several attempts are reported in the past for assessment of chronological age of an individual based on variety of discriminative features found in wrist radiograph images. The permutation and combination of these features realized satisfactory accuracies for a set of limited groups. In this paper, assessment of gender for individuals of chronological age between 1-17 years is performed using left hand wrist radiograph images. A fully automated approach is proposed for removal of noise persisted due to non-uniform illumination during FDMP-Fluid Dynamics & Materials Processing, Vol.15, No.5, pp. 545-555, 2019, DOI:10.32604/fdmp.2019.01793 31 December 2019 Abstract Numerical simulation using Ansys Fluent code is performed, to investigate droplet generation in cross-junction based VOF method. Droplets of water are generated by the shear stress applied by continuous phase (oil), two configurations of cross-junction are suggested; the first is a simple model no modification is performed at the outer channel, while the second model is characterized by a lateral obstacle. we study the effect of velocity ratio, viscous parameter, interfacial tension, flow condition on droplet size and frequency, the effect of lateral obstacles on droplets generation is also focused and analysed. The numerical simulations showed that the velocity ratio Molecular & Cellular Biomechanics, Vol.17, No.1, pp. 19-24, 2020, DOI:10.32604/mcb.2019.07817 22 January 2020 Abstract Kinematic and dynamic characteristics of pulsating flow in a model of human aortic arch are obtained by a computational analysis. Three-dimensional flow processes are summarized by pressure distributions on the symmetric plane together with velocity and pressure contours on a few cross sections for systolic acceleration and deceleration. Without considering the effects of aortic tapering and the carotid arteries, the development of tubular boundary layer with centrifugal forces and pulsation are also analyzed for flow separation and backflow during systolic deceleration. 871 Coronado Center Drive, Suite 200, Henderson, Nevada, 89052, USA General Contact Email: office@techscience.com Office Locations

TAGS:Tech Science Press 

<<< Thank you for your visit >>>

description

Hot Websites