Extracellular fluid volume, plasma electrolyes, and plasma angiotensin II (A II) were individually controlled to determine their influence on the acute pressor responsiveness to A II. Hemodialysis of nephrectomized dogs was used to simulate and control the changes of major variables which occur in the intact state during changes in sodium balance. A II dose-pressure response curves were determi...

From the data given above the following explanation of the effects of continued loss of the external secretion of the pancreas may be offered. The underlying event is a steadily increasing deficit of sodium and of chloride ion due to the large requirement for these electrolytes in the construction of pancreatic juice. In consequence there is continued loss of water, chiefly from the body fluids...

The assessment and maintenance of perioperative blood volume is important because fluid therapy is a routine part of intraoperative care. In the past, patients undergoing major surgery were given large amounts of fluids because health-care providers were concerned about preoperative dehydration and intraoperative losses to a third space. In the last decade it has become clear that fluid therapy...

Controlled-stress rheology is used to investigate the viscoelastic parameters of human biological fluids and simulants. These fluids include human airway secretions (mucus), and a simulant of human meconium, specifically a vegetable-based food product. In light of volume restrictions of viable specimens, analyses are performed on <30 μL of material. This small volume of sample makes it difficul...

The volume flow rates of Eyring-fluids inside the wavy-rough nanoannulus were obtained analytically (up to the second order) by using the verified model and boundary perturbation method. Our results show that the wavy-roughness could enhance the flow rate especially for smaller forcing due to the larger surface-to-volume ratio and slip-velocity effect. Meanwhile, the phase shift between the out...

The liquid-vapor interfacial tension of various simple, polar, and ionic fluids is studied in a corresponding-states analysis originally suggested by Guggenheim [1]. The results for real fluids are compared to the corresponding ones for model fluids of each of the three types. For simple and weakly polar fluids, the data is mapped onto a master curve, as already demonstrated by Guggenheim. For ...

Designing drilling fluids for drilling in deep gas reservoirs and geothermal wells is a major challenge. Cooling drilling fluids and preparing stable mud with high thermal conductivity are of great concern. Drilling nanofluids, i.e. a low fraction of carbon nanotube (CNT) well dispersed in mud, may enhance the mixture thermal conductivity compared to the base fluids. Thus, they are potentially ...

Viscoelastic materials containing bubbles or drops are encountered in numerous application fields, and presently the object of much interest. The motion these matrices can be significantly different than Newtonian fluids. This review is restricted to case quiescent fluids (or small Reynolds number) drops, that not appreciably deformed during their motion. It includes a brief description propert...

Drilling mud is a dense, viscous fluid mixture used in oil and gas drilling operations to bring rock cuttings the earth's surface from boreholes as well lubricate cool drill bit. Water-based commonly due its relatively inexpensive easy dispose of. However, several components additives muds become increasingly cautious restricted. Starch was introduced safe biodegradable additive into water-base...