Nawaf N. Hamadneh¹, Waqar A. Khan², Ilyas Khan^{3, *}

CMC-Computers, Materials & Continua, Vol.65, No.2, pp. 1015-1032, 2020, DOI:10.32604/cmc.2020.011476 - 20 August 2020

Abstract One of the most significant considerations in the design of a heat sink is thermal management due to increasing thermal flux and miniature in size. These heat sinks utilize plate or pin fins depending upon the required heat dissipation rate. They are designed to optimize overall performance. Elliptical pin fin heat sinks enhance heat transfer rates and reduce the pumping power. In this study, the Firefly Algorithm is implemented to optimize heat sinks with elliptical pin-fins. The pin-fins are arranged in an inline fashion. The natureinspired metaheuristic algorithm performs powerfully and efficiently in solving numerical… More >

Yukun Lv, Jiaxi Yang^*

FDMP-Fluid Dynamics & Materials Processing, Vol.16, No.4, pp. 827-835, 2020, DOI:10.32604/fdmp.2020.010343 - 11 August 2020

Abstract On the basis of a macro flow resistance method and the Darcy Theory, a mathematical model is elaborated to characterize the flow resistance of a bag filter serving a coal-fired power plant. The development of the theoretical model is supported through acquisition of relevant data obtained by scanning the micro structure of the bag filter by means of an electron microscope. The influence of the running time and boiler load on the flow resistance and the impact of the flow resistance on the efficiency of the induced draft fan are analyzed by comparing the results More >

M. F. Elettreby^{1, 2, *}, Ali S. Alqahtani¹, E. Ahmed²

CMES-Computer Modeling in Engineering & Sciences, Vol.124, No.2, pp. 665-682, 2020, DOI:10.32604/cmes.2020.09194 - 20 July 2020

Abstract Drug resistance is one of the most serious phenomena in financial, economic and medical terms. The present paper proposes and investigates a simple mathematical fractional-order model for the phenomenon of multi-drug antimicrobial resistance. The model describes the dynamics of the susceptible and three kinds of infected populations. The first class of the infected society responds to the first antimicrobial drug but resists to the second one. The second infected individuals react to the second antimicrobial drug but resist to the first one. The third class shows resistance to both of the two drugs. We formulate More >

Chongchong Yan¹, Qianqian Wang¹, Nan Zhang², Jiajia Wang¹, Xuexiang Ren¹, Bingjie Xue³, Xiaojing Pu⁴, Zhihong Xu⁴, Huajun Liao^1,*

Phyton-International Journal of Experimental Botany, Vol.89, No.3, pp. 561-586, 2020, DOI:10.32604/phyton.2020.010322 - 22 June 2020

Abstract Since potato cultivars are sensitive to low temperature, cold injury severely affects the geographical distribution and yield of potato. Although some miRNAs have been identified in response to cold stress in plants, there is no report about the role of miRNAs in the response to cold stress in potato. Here, via high throughput sequencing, we described the profiling of cold stress response to miRNA and mRNA in potato. Two small RNA and six mRNA libraries were constructed and sequenced. 296 known and 211 novel miRNAs were identified, in which 34 miRNAs in Cold Group (CG)… More >

HAIFENG WANG^1,2,*, JUAN GUO¹, LIJING ZHENG¹, SHUYING LIU¹, ZHERONG WANG¹, HONGXUAN HE²

BIOCELL, Vol.44, No.2, pp. 217-224, 2020, DOI:10.32604/biocell.2020.09051 - 27 May 2020

Abstract The Escherichia coli (E. coli) is prevailing worldwide, but the epidemiology of E. coli infections feature regional distribution characteristics to some extent. E. coli, as a zoonotic pathogen, can be transferred from animals to humans through food chain or via contact with wounds, causing a public health risk. We reported the swelling of proventriculus and tracheal bleeding following the death in two broiler chickens (Gallus gallus domesticus) from Beijing, China. To investigate whether a virus was involved in the infection, Madin Darby Bovine Kidney (MDCK) cells were co-cultured with supernatants of proventriculus, trachea and spleen homogenates. The avian leucosis virus… More >

Tianyu Xu, Lixiang Zhang^*

FDMP-Fluid Dynamics & Materials Processing, Vol.16, No.3, pp. 525-536, 2020, DOI:10.32604/fdmp.2020.09618 - 25 May 2020

Abstract In this article, computational fluid dynamics (CFD) are used to explore the dynamics of water transport inside the pitted thickening of a plant xylem vessel. A pitted thickening model combined with the Bernoulli equation is used to analyze the influence of various factors (namely, the inner diameter, thickening width, thickening height, thickening spacing, number of laps and adjacent pit axial rotation). The pressure drop and the flow resistance coefficient are the variable parameters for our analysis. The results show that these two parameters are proportional to the thickening height and thickening width, and inversely proportional More >

Fatih M. Tok¹, Sibel Dervis^2,*, Halit Yetisir³

Phyton-International Journal of Experimental Botany, Vol.89, No.2, pp. 303-314, 2020, DOI:10.32604/phyton.2020.08801 - 22 April 2020

Abstract Forty-four V. dahliae isolates were collected from symptomatic vascular tissues of okra plants each from a different field in eight provinces located in the eastern Mediterranean and western Anatolia regions of Turkey during 2006- 2009. Nitrate-nonutilizing (nit) mutants of V. dahliae from okra were used to determine heterokaryosis and genetic relatedness among isolates. All isolates from okra plants were grouped into two vegetative compatibility groups (VCGs) (1 and 2) and three subgroups as 1A (13.6%, 6/44), 2A (20.5%, 9/44) and 2B (65.9%, 29/44) according to international criteria. Pathogenicity tests were performed on a susceptible local okra (A. esculentus) landrace… More >

Xin YANG^*, Liqun LU, Li HUANG, Jing HE, Jie LV

BIOCELL, Vol.44, No.1, pp. 101-110, 2020, DOI:10.32604/biocell.2020.08324 - 01 March 2020

Abstract T-cell acute lymphoblastic leukemia (T-ALL) is a hematological tumor caused by the malignant transformation of immature T-cell progenitor cells. Emerging studies have stated that microRNAs (miRNAs) may play key roles in T-ALL progression. This study aimed to investigate the roles of miR-145-3p in T-ALL cell proliferation, invasion, and apoptosis with the involvement of the nuclear factor-kappaB (NF-κB) signaling pathway. T-ALL Jurkat cells were harvested, and the expression of miR-145-3p and NF-κB-p65 was measured. Gain- and loss-of-functions of miR-145-3p and NF-κB-p65 were performed to identify their roles in the biological behaviors of Jurkat cells, including proliferation,… More >

Wensong LIU¹, Yunjie LU¹, Dong ZHANG¹, Longqing SHI¹, Guangchen ZU¹, Haijiao YAN^2,*, Donglin SUN^1,*

BIOCELL, Vol.44, No.1, pp. 73-80, 2020, DOI:10.32604/biocell.2020.08613 - 01 March 2020

Abstract Pancreatic cancer is one of the most aggressive malignancies with poor prognosis and high mortality. Recent studies showed that microRNAs are dysregulated and involved in the initiation and progression of pancreatic cancer. In this study, we found that miR-708 was significantly downregulated in pancreatic cancer tissues and cell lines. Lentivirus-mediated overexpression of miR-708 could significantly inhibit the proliferation and invasion, while enhanced chemosensitivity to gemcitabine in both Panc-1 and SW1990 cells. Luciferase reporter assay showed that miR-708 bound the 3’-untranslated region of survivin and suppressed the expression of survivin in pancreatic cancer cells. In pancreatic More >

Ning Xuan¹, Hua Zhang¹, Xu Liu¹, Qiang Guo¹, Jian Liu², Fangyin Yao^1,*

Phyton-International Journal of Experimental Botany, Vol.89, No.1, pp. 45-55, 2020, DOI:10.32604/phyton.2020.08548 - 01 March 2020

Abstract Rice blast disease is one of the most devastating diseases of rice (Oryza sativa L.) caused by the fungus Magnaporthe oryzae (M. oryzae), and neck blast is the most destructive phase of this illness. The underlying molecular mechanisms of rice blast resistance are not well known. Thus, we collected 150 rice varieties from different ecotypes in China and assessed the rice blast resistances under the natural conditions that favoured disease development in Jining, Shandong Province, China in 2017. Results showed that 92 (61.3%) and 58 (38.7%) rice varieties were resistant and susceptible to M. oryzae, respectively. Among the 150… More >