Research ArticleOpen accessIn the abstractWellbore Surveying While Drilling Based on Kalman FilteringMahmoud ElGizawy, Aboelmagd Noureldin, Jacques Georgy et al.Problem statement: Oil and gas are global fuels obtained primarily from drilling wells in underground terrestrial reservoirs. Vertical drilling is preferred because of its simplicity and therefore low cost, but subsurface targets can often be procured only by directing the wellbore along predefined non-vertical trajectories. For instance, directional drilling must be employed to reach locations inaccessible to the drilling rig, … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 2 · 30 Jun 2010 · 8,577 accessesView PDFCite
Research ArticleOpen accessIn the abstractPreparation of WO3 Nanoparticles Using Cetyl Trimethyl Ammonium Bromide Supermolecular TemplateNilofar Asim, S. Radiman, M. Ambar bin YarmoProblem statement: WO3 is one of the most interested metal oxides because of its application as catalysts, sensors, electrochromic devices, ceramic, solar cell, pigments and so on. More investigation is needed to find the good and low cost method for preparation of WO3 nanoparticles with uniform morphology and narrow distribution using a surfactant mediated method. Approach: In this study, the … …American Journal of Applied Sciences, Vol. 6, Issue 7 · 31 Jul 2009 · 7,699 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordDesign and Fabrication of Arduino-Based Automated Cradle Rocking and Moisture Detection MechanismCanute Sherwin, Raju K., Manish V. K. et al.Anew, inexpensive domestic electronic cradle that can compete with currentimported, expensive models has been a long-time need. This study describes thedesign and implementation of a new indigenous low-cost E-Baby Cradle thatswings automatically when the baby cries. The cry analyzing system recognizesthe sound of a baby's cry and swings the cradle appropriately until the babystops crying. According to the user's needs, … …Journal of Mechatronics and Robotics, Vol. 6, Issue 1 · 30 Aug 2022 · 5,751 accessesView PDFCite