TIlls paper describes the design and manufacture of a multifunctional space structure. The analytical techniques used in this project included thermal analyses of structures in various earth orbits, determination of structural requirements from optical performance calculations, designing of near zero Coefficient of Thermal Expansion (CTE) laminates, consideration of manufacturing and material v...

We study the influence of von Karman nonlinearity, van der Waals force, and a athermal stresses on pull-in instability and small vibrations of electrostatically actuated mi-croplates. We use the Galerkin method to develop a tractable reduced-order model for elec-trostatically actuated clamped rectangular microplates in the presence of van der Waals forcesand thermal stresses. More specifically,...

Continued emphasis on development of thermal cooling systems is being placed that can cycle low grade heat. Examples include solar powered unmanned aerial vehicles (UAVs) and data storage servers. The power efficiency of solar module degrades at elevated temperature, thereby, necessitating the need for heat extraction system. Similarly, data centres in wireless computing system are facing incre...

(EMG) studies are critical for the detection, diagnosis, and characterization of peripheral neuropathy (PN). Although NCS and EMG abnormalities are often compared to clinical findings, these data are not always concordant. Examples of this discordance include patients with small fiber PN having severe deficits of nociceptive and thermal function but normal NCS1, or patients with Charcot-Marie-T...

Hexagonal ice (Ih) is the most common form of ice, consisting of water molecules with their oxygen atoms arranged in a tetrahedral lattice. Both in the crystal and in the liquid form, oxygen atoms are spaced by 0.275 nm, but the density of ice is 8% lower than that of water. This well-known property gives ice the ability to crack rocks or break a bottle of beer in the freezer. Each water molecu...

Abstract In this present study, the nonlinear thermal-magneto-mechanical stability and vibration of branched nanotube conveying nano-magnetic fluid embedded in linear elastic foundations are analyzed. The governing equations established via Euler–Bernoulli theory, Hamilton’s principle, nonlocal theory elasticity. flow thermal behaviors nanofluid described using modified Navier–Stokes conservati...

background: deficiency of attention and concentration is one of great reasons of traffic incidents and it covers between 20 to 50 percent of events due to careless and mindedness. studies show that attention and concentration are considered as one of important cognitive components in safe driving. vibration is an important physical effect in all vehicles. till now has not been any organized stu...

In recent years, there has been made significant progress in developing microand nanomechanical systems that display slowly decaying vibrations. For different types of such systems, the ratio of the vibration eigenfrequency to the decay rate, the quality factor Q, has reached 105.1–3 This has allowed studying new physics, including quantum phenomena,4,5 and opened a way for numerous application...

It’s been known for many years that thermal temperature gradients across a rotor can alter the amplitude and phase of synchronous vibration. This is due to bowing of the shaft caused by a temperature difference between one side of the shaft and the other. The earliest published recognition of this phenomenon was by Newkirk [1], where the temperature difference was a result of frictional heating...