Micro/nanocantilevers have been employed as sensors in many applications including chemical and biosensing. Due to their high sensitivity and potential for scalability, miniature sensing systems are in wide use and will likely become more prevalent in micro/nano-electromechanical systems (M-NEMSs). This paper is mainly focused on the use of sensing systems that employ micro/nano-size cantilever...

Introduction Ultrasound is widely applied in the clinical field today, such as ultrasound contrast agent imaging, High Intensity Focused Ultrasound (HIFU), Extracorporeal Lithotripsy, sonodynamic therapy. Some of these have a close relation to the dynamic behavior of micro bubbles and that of a bubble cloud. In an ultrasound imaging, micro bubbles are used as contrast agents. Extracorporeal Foc...

Water saturation (Sw) is one of the most important petro-physical parameter for evaluating the clastic horizons of hydrocarbon reservoir, which can be calculated using Archie's equation. The Archie's parameters (m, a) are the major source of uncertainty in the calculation of Sw. In order to obtain Archie's parameters, a total number of 117 sandstone samples, having resistivity measurements from...

Micro-outsourcing is the process of sourcing work to smaller firms or individuals using online sites. Several websites provide a platform to match clients and vendors for sourcing jobs. A typical issue with micro-sourcing is information asymmetry regarding the actual expertise of vendors. Online platforms bridge this gap using vendors’ prior histories and client evaluations. In this study, we e...

Consider a unit sphere on which are placed N random spherical caps of area 4rip(N). We prove that if lim (p(N).N/log N) < 1, then the probabil i ty that the sphere is completely covered by N caps tends to 0 as N--" 0% and if lim (p(N).N/ log N) > 1, then for any integer n > 0 the probabili ty that each point of the sphere is covered more than n times tends to 1 as N--* oo.

A methodology to miniaturize mechanical tests of metal alloys based on membrane deformation was developed in this investigation. The buildup new path for miniaturization requires small amounts material testing. This is particular interest irradiated structural nuclear materials. Micrometric metallic circular membranes were fabricated starting from thin alloy foils and using two different paths....

The observational and measurement system in the micro environments to manipulate objects in the micro world is becoming necessary in many fields, such as manufacturing; “Micro Factory (Fig.1)”;one of the past Japanese national project, and medical usages; the micro surgery. Most of the past researches in the micro environments might be only focused on the micro manipulation but not on the micro...

To overcome the low lithium ion diffusion and slow electron transfer, a hollow micro sphere LiFePO₄/C cathode material with a porous interior structure was synthesized via a solvothermal method by using ethylene glycol (EG) as the solvent medium and cetyltrimethylammonium bromide (CTAB) as the surfactant. In this strategy, the EG solvent inhibits the growth of the crystals and the CTAB surfacta...

In this paper we describe a technique based on radio frequency plasma treatment in H2O vapour to reproducibly clean and modify the surface energy of clastic and carbonate core material allowing the establishment of well defined wettability conditions. We present micro-tomographic observations of the pore-scale fluid distributions in strongly water wet clastic and carbonate cores. We then establ...