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137 articles for “Single Factor”
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Research ArticleOpen accessEvery word in the titleDesign of a Single-Phase Rectifier with Improved Power Factor and Low THD using Boost Converter TechniqueIsmail Daut, Rosnazri Ali, Soib TaibThe method of using Boost type of converter was proposed for a 300W single-phase rectifier in this paper. By designing the necessary techniques and methodology, the overall Power Factor (PF) and Total Harmonic Distortion would be improved to the expectation. The cause of having low PF and high THD for a diode-capacitor type of rectifiers is related to non-linearity of … …American Journal of Applied Sciences, Vol. 3, Issue 9 · 30 Sep 2006 · 7,127 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleImpact of Dispositional Factors and Work-Family Conflict on Job Satisfaction among Single Mother EmployeesAminah Ahmad, Noryati NgahProblem statement: Few studies have tested the indirect effects of dispositional factors including perfectionism and locus of control on job satisfaction through work-family conflict. Approach: This study examined the indirect effects of perfectionism and locus of control on job satisfaction through work-family conflict. The sample consisted of 159 single mother employees. Data were gathered using self-administered questionnaires. The data were … …American Journal of Applied Sciences, Vol. 8, Issue 11 · 1 Oct 2011 · 7,592 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleFactors Affecting the Synthesis and Formation of Single-Phase Barium Hexaferrite by a Technique of Oxalate PrecursorQ. MohsenProblem statement: Barium hexaferrite (BaFe12O19), is of great importance as permanent magnets, particularly for magnetic recording as well as in microwave devices. Approach: The aim of this study was to synthesize Stoichiometric and single-phase barium hexaferrite through a technique of oxalate precursor. Effects of different Fe3+/Ba2+ mole ratio and annealing temperature on the particle size, microstructure and magnetic properties of … …American Journal of Applied Sciences, Vol. 7, Issue 7 · 31 Jul 2010 · 7,922 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleA Low Cost Design Solution - DSP Based Active Power Factor Corrector for SMPS/ UPS( Single Phase)Samia Pillai Pitchai, B. UmamaheswariAs per international agency regulation (IEC 1000-3-2/EN 61000-3-2) and market expectation, it is important to reduce current harmonics in the AC line current drawn by SMPS/ UPS connected to AC Mains as source and also it is desired by the user to deliver maximum power output by achieving unity power factor. To achieve the above objectives in SMPS/ UPS, APFC … …American Journal of Applied Sciences, Vol. 3, Issue 1 · 31 Jan 2006 · 6,896 accessesView PDFCite
Research ArticleOpen accessIn the keywordsOptimization of Chelating Process of Polysaccharides of Lyophyllum decastes with Zinc and Its Antioxidant ActivityBing Xu, Yi Dai, Jing Hong, Yiyong ChenIn this study, polysaccharides of Lyophyllum decastes (LDS) were used as raw material. The chelating rate was set as the index, the effect of chelating time, mass ratio and initial mass concentration on chelating rate was investigated. Response surface method was used to optimize the preparation technology of LDS and Zinc (Ⅱ) chelate (LDS-Zn) based on single factor experiments. LDS-Zn … …Current Research in Bioinformatics, Vol. 9, Issue 1 · 26 Aug 2020 · 11,761 accessesView PDFCite
Review ArticleOpen accessIn the keywordsVascular Endothelial Growth Factor: An Overview Across Multiple Disease ConditionsMiriam CanaveseVascular Endothelial Growth Factor (VEGF) is the major player in the regulation of physiological angiogenesis as well as it has also been implicated in pathological angiogenesis, associated with cancers and other conditions, among which psoriasis, autoimmune diseases and visual loss in macular degeneration. Interestingly, three regulatory Single Nucleotide Polymorphisms (rSNPs) in the promoter region of VEGF-A gene have been significantly … …American Journal of Pharmacology and Toxicology, Vol. 10, Issue 1 · 6 May 2015 · 7,099 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA Genetic Algorithm for Scheduling n Jobs on a Single Machine with a Stochastic Controllable Processing, Tooling Cost and Earliness-Tardiness PenaltiesMohamed Ali Abdel-Fattah MansourProblem statement: In this research, we addressed the problem of minimizing the earliness-tardiness penalties and manufacturing costs of a single machine with a stochastic controllable processing and tooling cost. Approach: We developed a mathematical non-linear integer programming model and its linearised version to find the optimal solution. We introduced a new genome representation in single machine scheduling literature that evolved … …American Journal of Engineering and Applied Sciences, Vol. 4, Issue 3 · 18 Aug 2011 · 7,587 accessesView PDFCite
Research ArticleOpen accessIn the abstractCytocompatibility and Antimicrobial Properties of Silver Nanoparticles-Loaded AMPs in the Oral CavityYanli Lv, Weikai ZhangPostoperative infection following oral metal implantation is a key factor that affects the success rate of surgery. This infection is mainly caused by bacterial biofilms. Traditional single antibacterial coatings have limitations, including a narrow antibacterial spectrum and poor cytotoxicity or stability. This study combined silver nanoparticles (AgNPs) and the synthetic antimicrobial peptide GL13K using electrostatic self-assembly technology to create a … …American Journal of Biochemistry and Biotechnology, Vol. 22, Issue 1 · 24 Apr 2026 · 1,685 accessesView PDFCite
Review ArticleOpen accessIn the abstractGoats’ Litter Size Concerning Bone Morphogenetic Protein 15 Gene VariationsTebogo Letsukulo Percy Thepa, Thobela Louis Tyasi, Jones Ng’ambiBone morphogenetic protein 15 (BMP15), a member of the transforming growth factor-β (TGF-β) superfamily, plays essential roles in follicular development and ovulation. Single nucleotide polymorphisms (SNPs) in the BMP15 gene have been associated with litter size in multiple livestock species, yet no comprehensive systematic review has synthesized findings across goat breeds. This systematic review aimed to evaluate the association between … …American Journal of Animal and Veterinary Sciences, Vol. 20, Issue 4 · 18 Feb 2026 · 1,405 accessesView PDFCite
Research ArticleOpen accessIn the abstractDiscovery of a New Thermostable Chitinase from Streptomyces No. 6Xiaowen Que, Yonghong Bao, Qing Liu et al.Chitinases are a class of hydrolases that hydrolyze the β-1, 4-glycosidic bonds between N-acetyl-D-glucosamine (GlcNAc) in chitin. Among chitinases, thermophilic chitinases and thermostable chitinases have received extensive attention in recent years due to their ability to tolerate higher temperatures and maintain enzyme stability for a longer period of time. However, it has previously been observed that not all chitinases are … …American Journal of Biochemistry and Biotechnology, Vol. 20, Issue 3 · 1 Aug 2024 · 5,115 accessesView PDFCite