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734 results for “Mechanical”
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Research ArticleOpen accessEvery word in the titleMechanical Scarification and Sucrose Priming Overcome Physical Dormancy in Caesalpinia spinosa (Tara) Seeds from the Peruvian HighlandsWilfredo Ruiz-Camacho, Ítalo Maldonado Ramirez, Juan Eduardo Suarez Rivadeneira et al.Caesalpinia spinose (tara) is a leguminous tree native to the Peruvian Andes-Amazon region, valued for soil restoration and high tannin content. However, its large-scale propagation is constrained by physical seed dormancy caused by a hard and impermeable seed coat. This study evaluated six pre-germination treatments to break dormancy and enhance early seedling development under local agroclimatic conditions in Magdalena District, … …OnLine Journal of Biological Sciences, Vol. 26, Issue 3 · 12 Aug 2026 · 1,204 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffect of Mechanical Properties of Sweet Potato Seedlings on Quality of Mechanized Processing and Recycling WorkJunming Liu, Tao Zhang, Jian Sun et al.To research and understand the mechanical properties of sweet potato seedlings, and to provide relevant data for the development of machinery related to sweet potato seedlings processing and recycling, this paper used Shangshu 19 sweet potato seedlings in harvesting period as the test material, the shear test and moisture content of sweet potato seedlings were tested, the influence of moisture … …American Journal of Biochemistry and Biotechnology, Vol. 21, Issue 2 · 22 May 2025 · 6,619 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleMechanical and Microstructural Characterization of Plasma Welded Joints of 18 Ni-300 Maraging Steels Subjected to RepairsPaulo Roberto Sakai, Deivid Ferreira da Silva, Milton Sérgio Fernandes de Lima et al.Among the ultra-high strength structural steels, 18Ni-300 Maraging steel is one of the most important for the naval and aerospace industries. For example, in the manufacture of motor envelopes Plasma Arc Welding-PAW processes are used with the keyhole technique. The joints are regions of high responsibility and undergo a non-destructive inspection according to the standardized technical criteria. If there is … …Journal of Aircraft and Spacecraft Technology, Vol. 5, Issue 1 · 19 Apr 2021 · 7,599 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleProduction of Al based Composites Reinforced with FeAl Intermetallic Particles by Mechanical AlloyingSergio Rubèn Gonzaga Segura, Arturo Molina Ocampo, Renè Guardián Tapia, Alejandro Sedano AguilarIn this research project, Al matrix composite materials reinforced with 5 and 10 (wt. %) of FeAl intermetallic particles were synthesized by Mechanical Alloying (MA) at a speed of 250 RPM for 2, 5, 10 and 15 h of milling time. The results showed that composite materials can be obtained at low energy conditions with improved dispersion of the reinforcement … …American Journal of Applied Sciences, Vol. 18, Issue 1 · 24 Mar 2021 · 6,886 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThe Effects of Moisture Content and Loading Orientation on Some Physical and Mechanical Properties of Tiger NutLong Wang, Can Hu, Wensong Guo et al.The physical and mechanical properties of the newly “Zhongyousha No.1” and the traditional “Yousha” Chinese tiger nut varieties are studied. Several physical and mechanical properties of the two tiger nut varieties were determined as a function of moisture content (at five levels of 40.0, 32.0, 24.0, 16.0 and 8.0% wet basis). The physical and mechanical properties including length, width, thickness, … …American Journal of Biochemistry and Biotechnology, Vol. 17, Issue 1 · 19 Mar 2021 · 6,587 accessesView PDFCite
Research ArticleOpen accessEvery word in the titlePreparation of Collagen Casings with High Mechanical Properties using Response Surface MethodologyZhike Xie, Ming He, Yuhan Zhai et al.Usages of plastic casing have a number of drawbacks like generation of waste associated with the materials used to package foods and the source of natural casings is limited. So, the interest in the development of biodegradable collagen casing is increasing. For this reason, the present study aimed at developing a new type of collagen casing sprayed with Tea Polyphenols … …American Journal of Biochemistry and Biotechnology, Vol. 17, Issue 1 · 16 Jan 2021 · 7,506 accessesView PDFCite
Research ArticleOpen accessEvery word in the titlePreparation of Antimicrobial Collagen Casings with High Mechanical PropertiesZhike Xie, Shuyan Yu, Ming He et al.Tea Polyphenols (TP) has received much attention for their excellent antioxidant and antibacterial activities. Some additives (such as sodium alginate and sodium pyrophosphate) have good hydrophobicity which have influence on the mechanical properties of food. The effect of TP on the antibacterial activity of collagen casing was investigated, the effect of addition of TP, sodium pyrophosphate and sodium alginate on … …American Journal of Biochemistry and Biotechnology, Vol. 16, Issue 3 · 2 Sep 2020 · 6,627 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleFabrication of Ni, Si and Mg Supersaturated Solid Solutions in Al by Mechanical AlloyingA. Sedano, A. Molina, S.A. Serna et al.In this work, a comparison between the synthesis process of nanostructured Al base alloys modified with Si, Ni and Mg and the formation of their respective supersaturated solid solution is presented. The samples were obtained via Mechanical Alloying (MA) at a speed of 300 RPM for 2, 5, 10, 20 and 30 h under an inert Ar atmosphere. Lattice parameter … …American Journal of Engineering and Applied Sciences, Vol. 13, Issue 1 · 23 Feb 2020 · 7,260 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffect of Parameters of Selection and Replacement Drilling Bits Based on Geo-Mechanical Factors: (Case Study: Gas and Oil Reservoir in the Southwest of Iran)Arzhang NabilouThe purpose of the present study was to explore the effect of drill bit selection parameters on enhanced oil and gas recovery fin Iranian oil and gas fields. In this study, many methods and parameters were discussed. These parameters are practically tested on many wells in southwestern field of Iran. Out of common drill bit selection methods, length unit drilling … …American Journal of Engineering and Applied Sciences, Vol. 9, Issue 2 · 9 May 2016 · 8,362 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleDynamic Mechanical Properties of Fused Deposition Modelling Processed Polyphenylsulfone MaterialBolin Huang, S.H. Masood, Mostafa Nikzad et al.Fused Deposition Modelling (FDM) has attained its reputation due to the capability of rapidly fabricating prototypes from concept design to real parts in shorter time and lower cost than traditional manufacturing processes. This study sheds light on the dynamic mechanical properties of Polyphenylsulfone (PPSF) material fabricated by FDM additive manufacturing process considering the effect of its various process parameters. Three … …American Journal of Engineering and Applied Sciences, Vol. 9, Issue 1 · 16 Jul 2015 · 8,340 accessesView PDFCite