With the scaling of technology, need for high performance and more functionality, power dissipation becomes a major bottle neck for microprocessor systems design, because clock power can be significant in high performance systems. We propose a low power ALU for high performance systems, which make use of clock gating to reduce clock power. This low-power ALU based on the observation that while ...

Mechanically, the most economical gait for slow bipedal locomotion requires walking as an 'inverted pendulum', with: I, an impulsive, energy-dissipating leg compression at the beginning of stance; II, a stiff-limbed vault; and III, an impulsive, powering push-off at the end of stance. The characteristic 'M'-shaped vertical ground reaction forces of walking in humans reflect this impulse-vault-i...

In Robust control design of nonlinear uncertain systems, stability theory plays an important role in engineering systems. For any given control system, it is crucial to have a stable system since an unstable control system is useless. Lyapunov . stability criterion is a general and useful procedure for studying the stability of nonlinear systems. The Lyapunov stability theory include two method...

This thesis presents a backgate coupled QVCO with current reused structure, and complementary cross-coupled differential Colpitts VCO and QVCO. The formally proposed QVCO not only dissipates significantly lower power but also improves 1/ƒ close-in phase noise, compared to the conventional QVCO. For verification of the suggested idea, the proposed QVCO designed for 2 GHz operation based on a 0.1...

Energy absorption and dissipation features of mechanical metamaterials have widespread applications in everyday life, ranging from absorbing shock impacts to vibrations. This article proposes novel bioinspired friction-based with a zero Poisson's ratio behavior inspired parrot's beaks manufactured additively. The performances the corresponding are studied at both macro micro scales by experimen...