pore diffusion
41Gel Permeation Chromatography — Chromatographie d exclusion stérique Chromatographie d exclusion stérique Appareil de chromatographie d exclusion stérique. Le pompage de l éluant dans la colonne de droite est contrôlé par l ordinateur …
42Dispersion (Hydrologie) — Als Dispersion bezeichnet man in der Hydrologie einen Prozess, der ähnlich der Diffusion zu einem Ausgleich von Konzentrationsgradienten im Wasser führt. Im Porenraum eines Grundwasserkörpers herrscht eine sehr heterogene Verteilung der… …
43separation and purification — ▪ chemistry Introduction in chemistry, separation of a substance into its components and the removal of impurities. There are a large number of important applications in fields such as medicine and manufacturing. General principles… …
44BYZANCE — La délimitation dans le temps de l’Empire byzantin a toujours été flottante. Non pour la date de sa fin: l’Empire est mort avec son dernier souverain, Constantin XI, au matin de la chute de Constantinople, le 29 mai 1453, sur la brèche de la… …
45Adsorption — is a process that occurs when a gas or liquid solute accumulates on the surface of a solid or a liquid (adsorbent), forming a film of molecules or atoms (the adsorbate). It is different from absorption, in which a substance diffuses into a liquid …
46Kaliumkanal — Ansicht von oben auf einen Kaliumkanal, die violetten Kaliumionen passieren den Kanal (PDB code = 1BL8) Der Kaliumkanal (engl. potassium channel) bezeichnet einen Ionenkanal, der in spezifischer Weise den Durchtritt für Kaliumionen gestattet. Der …
47Darcy's law — is a phenomenologically derived constitutive equation that describes the flow of a fluid through a porous medium. The law was formulated by Henry Darcy based on the results of experiments[1] on the flow of water through beds of sand. It also… …
48Porin (Protein) — Porine Schematische Darstellung eines Sucrose spezifischen Porins aus Salmonellen …
49Hemodialysis — In medicine, hemodialysis (also haemodialysis) is a method for removing waste products such as potassium and urea, as well as free water from the blood when the kidneys are in renal failure. Hemodialysis is one of three renal replacement… …
50gas — gasless, adj. /gas/, n., pl. gases, v., gassed, gassing. n. 1. Physics. a substance possessing perfect molecular mobility and the property of indefinite expansion, as opposed to a solid or liquid. 2. any such fluid or mixture of fluids. 3. any… …
