Estimation of soil hydraulic and solute transport parameters is important to provide input parameters for numerical models simulating transient water ̄ow and solute transport in the vadose zone. The Levenberg±Marquardt optimization algorithm in combination with the HYDRUS-1D numerical code was used to inversely estimate unsaturated soil-hydraulic and solute transport parameters from transient m...

The subject of the presented research project is the exact knowledge about the parameters influencing the operating characteristics and limiting the maximum power of low pressure hydraulic vane type machines, used as drives for ship-deck machinery, to obtain a full utilisation of the potential of these motor type, and the intera ction between biodegradable hydraulic fluids and hydrostatic units...

[1] Hydraulic diffusivity controls fluid pressure and hence affects effective normal stress during rupture. Models suggest a particularly spectacular example of fluid pressurization during the Mw = 7.6 1999 Chichi earthquake when pressurization may have reduced highfrequency shaking in the regions of large slip if the fault was sufficiently sealed. We investigate in situ hydraulic diffusivity w...

Plants can be highly segmented organisms with an independently redundant design of organs. In the context of plant hydraulics, leaves may be less embolism resistant than stems, allowing hydraulic failure to be restricted to distal organs that can be readily replaced. We quantified drought-induced embolism in needles and stems of Pinus pinaster using high-resolution computed tomography (HRCT). H...

This paper presents a modeling approach based on Bond Graph (BG) method for offshore hydraulic crane focusing on its hydraulic system characteristics. A hydraulic library is built in the modeling software tool 20-sim using BG elements. The hydraulic submodels are designed according to one specific type of offshore crane, however, they can be easily modified and reused for other similar systems....

The study of the performance dynamic hydraulic throttling under condition stable fluid is great significance. effect a step change in pressure differences on valve studied. This paper studies and static hydraulic-valve-outlet throttling-speed regulation system, builds more accurate mathematical model, considers linear factors flow hydraulic-valve throttling, analyzes influence step-load differe...

[1] We describe the response of a compressible submarine hydrologic monitoring instrument to formation pressure changes in low-diffusivity rock. The measured pressure depends on the frequency of the pressure signal, the hydraulic diffusivity, and the wellbore storage. The Nankai advanced circulation obviation retrofit kits (ACORKs) (offshore Japan) record tide-induced formation pressure changes...

2014 The first theoretical study of optical absorption in aluminium under hydraulic pressure, based on a self-consistent ab initio band scheme, is presented. The shifts of the absorption peaks under high pressure, in agreement with the experimental data, are observed The relevant changes in the band structures are pointed out to explain these shifts. J. Physique 47 (1986) 453-460 MARS 1986, :

The vasa recta are thought to play an important role in the transfer of water andsolutes within the renal medulla. Hydraulic pressures were measured in vasa recta onthe surface of the exposed papilla in young Munich Wistar rats, and blood was collected from these microvessels for determination of total protein concentration and calculation of colloid oncotic pressure. In descending vasa recta...