This paper presents a hybrid control of active suspension system for quarter-car model with two-degree-of-freedom by using H∞ and nonlinear adaptive control method. Suspension dynamics is linear and treated by H∞ method which guarantees... more
This paper presents a hybrid control of active suspension system for quarter-car model with two-degree-of-freedom by using H∞ and nonlinear adaptive control method. Suspension dynamics is linear and treated by H∞ method which guarantees the robustness of closed loop system under the presence of uncertainties and minimizes the effect of road disturbance to the system. The nonlinearity of the hydraulic actuator is treated by a nonlinear adaptive controller based on back-stepping control method. Simulation results are given both frequency and time domains to verify the effectiveness of the designed controllers
This paper examines the effects of forest devolution on the livelihoods of the rural poor. The paper analyzes changes in forest endowments and entitlements among households brought about by “forestland allocation” in two villages of... more
This paper examines the effects of forest devolution on the livelihoods of the rural poor. The paper analyzes changes in forest endowments and entitlements among households brought about by “forestland allocation” in two villages of Vietnam’s Central Highlands. Its results indicate that not only the nature of devolved rights but also broader political and economic processes influence the extent and distribution of benefits. Even where devolution generates benefits to local people in poor areas, local power relations and the institutions regulating access to productive resources may constrain the ability of the “poorest of the poor” to take advantage of devolution.
