Jianxin Hu, Xin Huang, Yuzhen Jin^*

FDMP-Fluid Dynamics & Materials Processing, Vol.17, No.3, pp. 597-614, 2021, DOI:10.32604/fdmp.2021.014249 - 29 April 2021

Abstract By studying the characteristics of the flow field around a swimming fish, useful insights can be obtained into the superior swimming capabilities developed by nature over millions of years, in comparison to what can be achieved using the standard engineering principles traditionally employed in naval and ocean engineering. In the present study, the flow field related to a single joint fish model is simulated in the framework of a commercial computational fluid dynamics software (ANSYS Fluent 18.0). The principle of the anti-Kármán vortex street is analyzed and the relationship between the direction of the tail More >

Song Gao^1,*, Xin Jin¹, Qiaohong Liu²

FDMP-Fluid Dynamics & Materials Processing, Vol.17, No.3, pp. 511-529, 2021, DOI:10.32604/fdmp.2021.012741 - 29 April 2021

Abstract The signals generated by electromagnetic flow sensors used for slurry fluids are often affected by noise interference produced by interaction with the slurry itself. In this study, the power spectrum characteristics of the signal are studied, and an attempt is made to determine the relationship between the characteristics of the related noise and the velocity and concentration of the slurry fluid. Dedicated experiments are conducted and the related power spectrum curve is obtained processing the signal measured by the sensor with Matlab. Numerical simulations are also carried out in the frame of an Eulerian approach More >

Baocheng Shi^*, Ruomeng Ying, Lijuan Wu, Jianpeng Pan, Xingkai Zhang, Kai Liu, Yindi Zhang

FDMP-Fluid Dynamics & Materials Processing, Vol.17, No.3, pp. 667-682, 2021, DOI:10.32604/fdmp.2021.012693 - 29 April 2021

Abstract In oil drilling processes, sand production in the oil layer is a common issue, generally mitigated by means of sand control screens. To prevent or reduce the risk of damage of these screens and to improve the related service life, it is necessary to investigate the related erosion dynamics. In this study, a screen mesh model based on the flow field similarity theory is proposed to overcome the otherwise too complex geometric structure of this type of equipment. Such model is optimized using experimental data. The predicted results are in good agreement with the measured More >

Haoyu Wan, Heng Zhang, Zhizhu He^*

FDMP-Fluid Dynamics & Materials Processing, Vol.17, No.3, pp. 639-651, 2021, DOI:10.32604/fdmp.2021.012106 - 29 April 2021

Abstract Treating coronary bifurcation stenosis is still a challenging task. Existing procedures still display a relatively small rate of success. This paper aims to investigate numerically the effect of bifurcation lesions with different structures on the dynamics of blood flow and related temperature. The problem geometry is parametrically varied by changing the bifurcation angle and radius. A finite volume method is used to simulate the three-dimensional flow. The effects induced by the structure of the stenosis, the artery bifurcation angle and radius, and the inlet velocity of blood are discussed in terms of flow pattern, pressure More >

Adi Azriff Basri^1,6,*, Mohammad Zuber², Ernnie Illyani Basri¹, Muhammad Shukri Zakaria⁵, Ahmad Fazli Abd Aziz³, Masaaki Tamagawa⁴, Kamarul Arifin Ahmad^1,6

FDMP-Fluid Dynamics & Materials Processing, Vol.17, No.3, pp. 531-553, 2021, DOI:10.32604/fdmp.2021.010925 - 29 April 2021

Abstract Paravalvular Leakage (PVL) has been recognized as one of the most dangerous complications in relation to Transcathether Aortic Valve Implantation (TAVI) activities. However, data available in the literature about Fluid Structure Interaction (FSI) for this specific problem are relatively limited. In the present study, the fluid and structure responses of the hemodynamics along the patient aorta model and the aortic wall deformation are studied with the aid of numerical simulation taking into account PVL and 100% TAVI valve opening. In particular, the aorta without valve (AWoV) is assumed as the normal condition, whereas an aorta… More >

Yasir Iftikhar^1,*, Mazhar Abbas², Mustansar Mubeen³, Muhammad Zafar-ul-Hye^4,*, Faheema Bakhtawar¹, Sonum Bashir¹, Ashara Sajid¹, Muhammad Asif Shabbir¹

Phyton-International Journal of Experimental Botany, Vol.90, No.4, pp. 1063-1074, 2021, DOI:10.32604/phyton.2021.015508 - 27 April 2021

Abstract Tristeza is a devastating viral disease in all the citrus growing countries throughout the world and has killed millions of citrus trees in severely affected orchards. The citrus species grafted on sour orange rootstock are affected by this disease. Predominantly, the sweet orange, grapefruit and lime trees grafted on sour orange exhibit severe symptoms like quick decline, vein clearing, pin holing, bark scaling and degeneration leading to variable symptoms. Symptomatic expression of Citrus tristeza virus (CTV) in different hosts has been attributed to virus isolates which are from severe to mild. Different serological and molecular… More >

Na Kuang, Huabin Zheng, Qiyuan Tang^*, Yuanwei Chen, Xiaomin Wang, Youyi Luo

Phyton-International Journal of Experimental Botany, Vol.90, No.4, pp. 1119-1230, 2021, DOI:10.32604/phyton.2021.014637 - 27 April 2021

Abstract Rice ratooning, or the production of a second rice crop from stubble after the harvest of the main crop, is considered to be a green and resource-efficient rice production system. The present study was conducted to examine variance in amylose content (AC), grain morphology, crystal structure, and thermal properties of starch between main- and ratoon-season rice of seven varieties. Ratoon-season rice grains had higher ACs and significantly lower transition gelatinization temperatures (To, Tp, and Tc) than did main-season rice grains. The relative crystallinity and lamellar peak intensity of ratoon-season rice starch were 7.89% and 20.38% lower, respectively, More >

Wei Zheng, Zheng Shi, Mei Long, Yuncheng Liao^*

Phyton-International Journal of Experimental Botany, Vol.90, No.4, pp. 1147-1159, 2021, DOI:10.32604/phyton.2021.015916 - 27 April 2021

Abstract Enhancing photosynthesis efficiency is considered as one of the most crucial targets during wheat breeding. However, the molecular basis underlying high photosynthesis efficiency is not well understood up to now. In this study, we investigated the protein expression profile of wheat Jimai5265yg mutant, which is a yellow-green mutant with chlorophylls b deficiency but high photosynthesis efficiency. Though TMT-labeling quantitative proteomics analysis, a total of 72 differential expressed proteins (DEPs) were obtained between the mutant and wild type (WT). GO analysis found that they significantly enriched in thylakoid membrane, pigment binding, magnesium chelatase activity and response More >

Maricela Apáez-Barrios¹, José Alberto Salvador Escalante-Estrada², Patricio Apáez-Barrios^1,*, Yurixhi Atenea Raya-Montaño³, Juan Carlos Álvarez-Hernández¹

Phyton-International Journal of Experimental Botany, Vol.90, No.4, pp. 1193-1203, 2021, DOI:10.32604/phyton.2021.014567 - 27 April 2021

Abstract Chickpea contains high levels of protein, vitamins and minerals. Acceptable chickpea yield is the result of meeting nitrogen and phosphorus requirements. The effect of appropriately meeting such requirements reflects on growth and can easily be evaluated using growth analysis. This research determined: (a) The effect of nitrogen and phosphorus fertilization on phenology, net assimilation rate, number of green leaves, leaf area, leaf area index and leaf area duration; (b) Green chickpea yield and number of pods due to fertilization; and (c) The combination of nitrogen and phosphorus fertilization that yields the most net revenue. Nitrogen… More >

Luis Alfonso Aguilar Pérez^1,*, Daniel Nieto Ángel^1,*, Moisés Roberto Vallejo Pérez², Daniel Leobardo Ochoa Martínez¹, David Espinosa Victoria³, Andrés Rebolledo Martinez⁴, Abel Rebouças São José⁵

Phyton-International Journal of Experimental Botany, Vol.90, No.4, pp. 1205-1216, 2021, DOI:10.32604/phyton.2021.015109 - 27 April 2021

Abstract The development and implementation of sustainable and environmentally friendly agricultural practices are indispensable as alternatives to pesticide use and to keep populations of soil-borne plant pathogens at levels that do not affect crop productivity. The present research evaluates the incidence of soil-borne phytopathogens on the pineapple variety MD-2, which was subjected to different treatments: Incorporation of Crotalaria juncea into the soil (organic amendment), application of dolomitic lime to soil (inorganic amendment), and the use of plastic mulch covering the soil. During the crop cycle (15 months), the following variables were evaluated: plant height (cm), fruit weight (kg·plant⁻¹… More >