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114 results about "Reabsorption" patented technology

In renal physiology, reabsorption or tubular reabsorption is the process by which the nephron removes water and solutes from the tubular fluid (pre-urine) and returns them to the circulating blood. It is called reabsorption (and not absorption) both because these substances have already been absorbed once (particularly in the intestines) and because the body is reclaiming them from a postglomerular fluid stream that is well on its way to becoming urine (that is, they will soon be lost to the urine unless they are reclaimed). Substances are reabsorbed from the tubule into the peritubular capillaries. This happens as a result of sodium transport from the lumen into the blood by the Na⁺/K⁺ATPase in the basolateral membrane of the epithelial cells. Thus, the glomerular filtrate becomes more concentrated, which is one of the steps in forming urine. Reabsorption allows many useful solutes (primarily glucose and amino acids), salts and water that have passed through Bowman's capsule, to return to the circulation. These solutes are reabsorbed isotonically, in that the osmotic potential of the fluid leaving the proximal convoluted tubule is the same as that of the initial glomerular filtrate. However, glucose, amino acids, inorganic phosphate, and some other solutes are reabsorbed via secondary active transport through cotransport channels driven by the sodium gradient.

Backlight module of display device and white light LED

The invention discloses a backlight module of a display device and a white light LED. The backlight module comprises a lamp bar and a light guide plate, wherein the lamp bar is provided with a plurality of ultraviolet light LEDs, and the light-entering face of the light guide plate and the ultraviolet light LEDs are arranged oppositely. A path of the process from light emitted by the ultraviolet light LEDs to the light shot from the light-exiting face of the light guide plate at least comprises an RGB quantum dot fluorescent powder layer. The RGB quantum dot fluorescent powder layer comprises a red light quantum dot fluorescent screen, a green light quantum dot fluorescent screen and a blue light quantum dot fluorescent screen, wherein the red light quantum dot fluorescent screen, the green light quantum dot fluorescent screen and the blue light quantum dot fluorescent screen are sequentially arranged. The RGB quantum dot fluorescent powder layer generates high-purity white light under excitation of ultraviolet light emitted by the ultraviolet light LEDs. As the RGB quantum dot fluorescent powder layer is formed by sequentially arranging the red light quantum dot fluorescent screen, the green light quantum dot fluorescent screen and the blue light quantum dot fluorescent screen, color saturation of the backlight module is improved, and the problem of reabsorption of RGB quantum dot fluorescent powder is solved.
Owner:SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD

Separation system of saturated hydrocarbon cracking gas and utilization method of rich ethane/propane saturated hydrocarbon

The invention belongs to the field of refinery saturated resource utilization, and relates to a separation system of saturated hydrocarbon cracking gas and a utilization method of rich ethane/a propane saturated hydrocarbon. The separation system of the saturated hydrocarbon cracking gas includes a cracking furnace, a waste heat boiler, a quenching water tower, a compressor, an absorption tower, adesorption tower, a reabsorption tower, a drying tower, a deethanization tower, a carbazide hydrogenation reactor and an ethylene rectifying tower, wherein the cracking furnace is connected successively with the waste heat boiler, the quenching water tower and the compressor and then connected with the absorption tower, the tower top of the absorption tower is connected with the reabsorption tower, and the tower kettle of the absorption tower is connected with the desorption tower; the tower top of the desorption tower is connected with the drying tower and then connected with the deethanization tower, and the tower kettle of the desorption tower is connected with the top of the absorption tower; the tower top of the deethanization tower is connected successively with the carbazide hydrogenation reactor and the ethylene rectifying tower; and the tower top of the ethylene rectifying tower is connected with the compressor, the tower kettle of the ethylene rectifying tower is connected with the cracking furnace, and the side part of the ethylene rectifying tower is connected with the production line of polymer grade ethylene products. According to the separation system of the saturated hydrocarbon cracking gas and the utilization method of the rich ethane/the propane saturated hydrocarbon, investment is low, energy consumption is low, the process is simple, and the investment recovery rate is high.
Owner:CHINA PETROLEUM & CHEM CORP +1

Mn<4+> doped fluoroaluminate red fluorescent powder as well as preparation method and application thereof

The invention discloses Mn<4+> doped fluoroaluminate red fluorescent powder as well as a preparation method and an application thereof. The method comprises steps as follows: hydrofluoric acid and water are added to a polytetrafluoroethylene container, K2MnF6 is added and stirred to be dissolved, and then KF is added; after KF is dissolved, K3AlF6 is added and continuously stirred to be completely dissolved, and then the mixture is continuously stirred for 30 min; the mixture is left to stand after stirring is stopped, suction filtration is performed, a filter cake is dried under the vacuum condition at the temperature of 70 DEG C, and the Mn<4+> doped fluoroaluminate red fluorescent powder is obtained. Compared with the prior art, the K3AlF6:Mn<4+> red fluorescent powder is synthesized in a hydrofluoric acid aqueous solution, and the diluted aqueous solution has a function of purifying the K3AlF6 phase; excessive KF.2H2O is added, so that the K3AlF6 phase is crystallized and separated to be purified in the aqueous solution; the obtained fluorescent powder has a narrow emission spectrum range, and the reabsorption phenomenon is effectively avoided; the phase of the synthesized fluorescent powder is pure, and the light emitting efficiency and collection rate are high; the color gamut range of a white light LED device packaged by the fluorescent powder is wide.
Owner:HEFEI UNIV OF TECH

Carbon dioxide capture system

The invention provides a carbon dioxide capture system. The carbon dioxide capture system comprises an air blower, an absorption tower, a rich solution pump, a first heat pump system, a second heat pump system, a lean and rich solution heat exchanger, a desorption tower, a reboiler, a carbon dioxide cooler, a gas-liquid separator, a lean solution pump and a lean solution cooler. According to the carbon dioxide capture system provided by the invention, based on the arrangement of the air blower, the absorption tower, the rich solution pump, the first heat pump system, the second heat pump system, the lean and rich solution heat exchanger, the desorption tower, the reboiler, the carbon dioxide cooler, the gas-liquid separator, the lean solution pump and the lean solution cooler, through the repeated heat exchange of the first heat pump system, the second heat pump system and the lean and rich solution heat exchanger, idle residual heat inside the carbon dioxide capture system can be effectively and adequately utilized, the energy loss of the carbon dioxide capture system is lowered, and the energy utilization ratio of the carbon dioxide capture system, the desorption capacity of a rich solution, the reabsorption capacity of a lean solution and the purity of capture of carbon dioxide are improved.
Owner:CHINA PETROCHEMICAL CORP +3

Two-stage low temperature gasification device based on low-order fuel autocatalysis, and two-stage low temperature gasification method based on low-order fuel autocatalysis

The invention relates to a two-stage low temperature gasification device based on low-order fuel autocatalysis, and a two-stage low temperature gasification method based on low-order fuel autocatalysis, belonging to the field of clean energy utilization of low-order fuel. A pyrolysis reactor is communicated with a fluidized-bed gasifier and a cyclone separator, and the cyclone separator is sequentially communicated with a primary back feeding pipe, a spiral back feeder, a secondary back feeding pipe and the pyrolysis reactor. A moving bed pyrolysis system is replenished with non-carrier gas, high alkaline metal low-order fuel and alkaline earth metal low-order fuel are pyrolyzed by being heated together with a heat carrier in a mixing way, and part of pyrolysis products are gasified and reformed; the pyrolysis products are directly conveyed into a fluidized-bed gasifying system so as to be subjected to in situ low temperature gasification, and most coke and all tar are involved in the reaction; the heat carrier at an outlet of the fluidized-bed gasifying system is separated from synthesis gas by means of a cyclone separation system, the heat carrier enters to the moving bed pyrolysis system, and the synthesis gas discharged outside. The device and the method which are provided by the invention utilize pyrolysis coke to carry out in situ catalytic pyrolysis on part of tar and utilize reabsorption alkali metal and alkali earth metal to catalyze coke gasification at low temperature, thus realizing high efficient low temperature autocatalytic gasification of the low-order fuel.
Owner:哈尔滨丰瀛投资有限公司
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