This study is to increase the efficiency of air conditioning system under actual conditions use. In order improve in energy consumption due control without considering indoor cooling load fluctuations, we review it compared conventional methods two respects. First, examined method reduce by varying evaporative pressure according load, and secondly, further reducing controlling revolutions per m...

OBJECTIVES To determine the effect of differing modes of left ventricular assist device (LVAD) operation: synchronous, independent (asynchronous or pseudosynchronous) or counter pulsation (antisynchronous), on left atrial pressure, pulmonary artery pressure, pulmonary blood flow and right ventricular work load, utilizing a previously published electrical analogy of the systemic and pulmonary ci...

Based on energy variation methods we calculated the deflection of membranes under the combined load of an external pressure and an internal lateral stress. A lateral load gives rise to buckling once a critical load is exceeded. The combination of transversal loads and lateral loads changes the properties of the membrane (and other structures) in the vicinity of the buckling load: The membrane d...

The use of a set of new end points obtained from ambulatory blood pressure monitoring, in addition to the blood pressure values themselves, has been advocated to improve sensitivity and specificity in the diagnosis of hypertension and the evaluation of a patient's response to treatment. Among these parameters is the use of blood pressure load, the percentage of values above a given constant ref...

This work studies an innovate working hydraulic system design for mobile applications, referred to as flow control. The fundamental difference compared to load sensing systems is that the pump is controlled based on the operator’s command signals rather than feedback signals from the loads. This control approach enables higher energy efficiency since the pressure difference between pump and loa...

BACKGROUND Compared to standing posture, sitting decreases lumbar lordosis, increases low back muscle activity, disc pressure, and pressure on the ischium, which are associated with occupational LBP. A sitting device that reduces spinal load and low back muscle activities may help increase sitting comfort and reduce LBP risk. The objective of this study is to investigate the biomechanical effec...

Objectives To test the usefulness of continuous assessment of arterial load based on a 3-element Windkessel model by a combined analysis of the esophageal Doppler derived-blood flow and arterial pressure waveform, against standard frequency-domain analysis of arterial impedance. Methods Time-domain variables of arterial impedance were obtained by the simultaneous analysis of the Doppler derived...

Hemispherical asymmetry in core dynamics induces degree-1 pressure variations at the core mantle boundary (CMB), which in turn deforms the overlaying elastic mantle, at the same time keeps center of mass of the whole Earth stationary in space. We develop a systematic procedure to deal with the degree-1 CMB pressure loading. We find by direct calculation a surprisingly negative load Love number ...

The purpose of the study was to investigate the effects of load weight and load configurations upon postural sway of Soldiers. Measuring postural sway may complement analyses of walking with loads, allowing for quick and efficient determination of how load carriage gear will impact the Soldier. Fourteen Army enlisted men participated in the study. Postural sway was measured while participants s...

This thesis studies an innovative working hydraulic system design for mobile applications. The purpose is to improve the energy efficiency and the dynamic characteristics compared to load sensing systems without increasing the complexity or adding additional components. The system analysed in this thesis is referred to as flow control. The fundamental difference compared to load sensing systems...