Modulating action

As inlet pressure rises above set pressure, dome pressure reduction will be such as to provide modulating action of the main valve piston proportional to the process upset. The spool/feedback piston combination will move, responding to system pressure, to alternately allow pressure in the main valve dome to increase or decrease, thus moving the main valve piston to the exact lift that will keep system pressure constant at the required flow. Full main valve lift, and therefore full capacity, is achieved with 5% overpressure. As system pressure decreases below set pressure, the feedback piston moves downward and opens the inlet seat to admit system pressure to the dome, closing the main valve. 

Adrenergic receptor 2 Amino acid variants appear to be associated with receptor function and agonist induced down regulation. Some variants may predispose to some types of asthma and modulate action of (3-2-adrenergic drugs. 

The positive influence of the Grinization on thrombocyte number is caused by the immune-modulating, cytoprotecting, antioxidant and apoptosis-modulating action of the biologically active components of the Grinization multi-nutrient complex. 

Modulating action A gradual opening and closing characteristic of some SRVs, particularly some pilot-operated types, in which the main valve opens in proportion to the relief demand at that time. This proportionality is not necessarily linear. 

Snap Modulating action action POSRV POSRV... 

Pop or modulating action available O-ring and soft seals limiting chemical and temperature compatibility... 

One can also consider replacing the chattering valve with a pilot-operated safety valve with modulating action. This option would require a new capac-... 

Long blowdown required due to inlet pressure losses above 3% On gas service, a pop or modulating action POSRV can be used. On some pilot valves, blowdowns between 3% and 25% can be achieved. In case of very high pressure losses, pilot-operated valves with a remote sensor should be considered. 

Harvey BH, Meyer CL, Gallicchio VS. The hemopoietic and immuno-modulating action of lithium salts an investigation into the chemotherapy of HTV infection in South Africa. In Lucas KC, Becker RW, Gallicchio VS, editors. Lithium-50 Years Recent Advances in Biology and Medicine. Cheshire, Connecticut Weidner Publishing, 1999 137-52. 

Volume therapy with etherified starches in trauma patients results in a reduction in circulating adhesion molecules, an effect that is not observed with albumin infusion (51). Continuous infusion of pentoxifylline did not have a beneficial modulating action on circulating adhesion molecules. Adhesion molecules appear to play an important role in tissue damage secondary to the inflammatory process. Besides neutrophil- and endothelium-bound adhesion molecules, soluble forms have been detected in the circulating blood in trauma patients. They seem to be markers of endothelial damage, but they may also have other biological functions. 

Tanko, L.B., Warming, L., Bagger, Y.Z., Byrjalsen, I., Jensen, S. and Christiansen, C. (2002) Serum placental protein 14 a novel marker of selective oestrogen receptor modulator action on the postmenopausal endometrium. Biomarkers, 7, 257—266. 

Such evidence as is available concerning the possible modulator action of individual neurohumours is discussed in the appropriate sections of this review. 

The modulating action of 5-n-alk(en)ylresorcinols upon the activity of membrane proteins may result not only from direct interaction with a protein molecule but also from alterations of their lateral mobilities. This suggestion is supported by results indicating a significant decrease of fibrinogen affinity for its receptor in platelet membranes after incubation with micromolar concentrations of various alkylresorcinol homologues... 

An effective refractory period (ERP) [See Fig. 11.1 (Z>)]. Comprising of several hundred milliseconds follows during which no further stimulus may propagate an impulse effectively. However, the impulse initiation happens to be an inherent characteristic features of the cardiac fibres which evidently enables them to modulate action potentials almost spontaneously, and hence, the corresponding impulses. 

Ion Channels Modulating Action Potential Threshold and Rate of Discharge. 137... 

In chloroplasts of higher plants the ferredoxin-thioredoxin system links light-triggered events in thylakoid membranes with the regulation of enzymes in the stroma (1,2). If the conformation of enzymes changes because of modulators action then the surface exposed to the solvent will be different from the native state (3). As a consequence, interactions of modified enzymes with supramolecular structures (membranes, protein complexes) will differ respect to native forms. Since thylakoid membranes are complex structures they are not adequate for uncovering molecular mechanisms that participate in protein interactions(4). In thfe respect, the well-defined structure of micelles of non-ionic detergents constitute model compounds for the analysis of hydrophobic interactions in proteins (5,6). We report herein that chloroplast fructose-1,6-bisphosphatase interacts with micelles of Triton X-114 in a pH-dependent process. 

J. Skommer, D. Wlodkowic, M. Mvttc, M. Eray, J. Pelkonen, HA14-1, a small molecule Bcl-2 antagonist, induces apoptosis and modulates action of selected anticancer drugs in follicular lymphoma B cells, Leuk. Res. 30 (2006) 322-331. 

---