The work presents the analysis and synthesis of an eight-link mechanism for industrial seat suspension, followed by a numerical optimization design under specific technical requirements. Even though eight-bar linkage is well-known architecture, it has few applications in suspensions, shows interesting features compared with more traditional scissor systems. It possible to exploit this mechanism...

We extend the McPherson model for silicon-oxygen bond-breakage in a way to capture the impact of the O-Si-O angle fluctuations on the breakage rate. It is shown that the mean rate is more than 5 times higher and its standard deviation is comparable to the nominal rate corresponding to the fixed angle (typical for α-quartz). The mean rate has appeared to grow exponentially with the electric fiel...

Agnes Binagwaho, M.D., Ph.D., Patrick Kyamanywa, M.D., M.P.H., Paul E. Farmer, M.D., Ph.D., Tej Nuthulaganti, M.P.H., Benoite Umubyeyi, R.N., M.Sc.N., Jean Pierre Nyemazi, M.D., Soline Dusabeyesu Mugeni, M.Sc., Anita Asiimwe, M.D., M.P.H., Uzziel Ndagijimana, Ph.D., Helen Lamphere McPherson, B.A., Jean de Dieu Ngirabega, M.D., Ph.D., Anne Sliney, R.N., Agnes Uwayezu, M.Sc.N., Vincent Rusanganwa...

Michael R Elashoff ([email protected]) James A Wingrove ([email protected]) Philip Beineke ([email protected]) Susan E Daniels ([email protected]) Whittemore R Tingley ([email protected]) Steven Rosenberg ([email protected]) Szilard Voros ([email protected]) William E Kraus ([email protected]) Geoffrey Ginsburg ([email protected]) Robert ...

It is shorn that the dielectric method is a valid way of monitoring cellular viability in situations where the mechanism causing death leads rapidly to gross cell lysis. We also show that the monitoring of capacitance at a single low radio frequency does reflect the actual dielectric properties of the cell suspension as judged from frequency scanning methods. It is tentatively suggested that th...

The ability of UAV’s (Unmanned Aerial Vehicles) to land on unknown and uneven terrain is an important area of research, particularly for applications such as field surveillance. This paper presents a novel solution to this problem using mechanical design, with a legged landing gear design that provides both suspension and stability on uneven terrain. The key features of this design are differen...

This paper presents a novel concept of active pneumatic suspension which uses an accumulator, airspring, and smart control system to actuate a variable orifice mechanism which connects the airspring to the accumulator. The main objective is to obtain a linear model for this pneumatic suspension so as to use existing advanced linear control methodologies to ascertain the closed loop performance ...

We propose a color-tunable light emitting diode (LED) consisting of a blue LED as the light source and quantum dot (QD) suspension as the color-conversion medium. The LED color temperature can be controlled by varying the liquid volume of each QD suspension with different photoluminescence colors. We simulate and optimize the light efficiency and color quality of the color-tunable LED and also ...

A vibration isolation module with zero-power magnetic suspension is developed to retrofit a passive vibration isolation system to improve the performance against direct disturbance. In the module, the zero-power magnetic suspension mechanism is connected in series with a normal spring through a middle mass. This structure can generate zero compliance to direct disturbance while the transmitted ...