摘要:
A heat exchanger for a refrigerator is disclosed, which has a simple structure, an improved heat exchanging efficiency, and an operating reliability. In the heat exchanger including a refrigerant tube (10) having a plurality of straight parts (11) and a plurality of curved parts (12) which connect the straight parts; and a plurality of fins (20) coupled to the straight parts (11) respectively through a plurality of inner through holes (21), the refrigrant tube (10) has a joining portion of the curved parts (12) and the straight parts (11) coated with a metal layer (110).
摘要:
An internal antenna of a wireless communication terminal, in which internal style folded monopole antenna is installed, is provided. The internal antenna of a wireless communication terminal includes a folded monopole antenna. The folded monopole antenna includes two folded radiation planes having a quarter wavelength, and reactances loaded to predetermined positions of the two radiation planes. Therefore, a space for installing the antenna in the terminal is minimized, and due to the no directional characteristics, the internal antenna can be applied to a wireless communication system of dual bandwidths.
摘要:
Disclosed is a rotary compressor having two compression capacities. The rotary compressor includes: a driving shaft (13) being rotatable clockwise and counterclockwise, and having an eccentric portion (13a) of a predetermined size; a cylinder (21) forming a predetermined inner volume; a roller (22) installed rotatably on an outer circumference of the eccentric portion (13a) so as to contact an inner circumference of the cylinder (21), performing a rolling motion along the inner circumference and forming a fluid chamber (29) to suck and compress fluid along with the inner circumference; a vane (23) installed elastically in the cylinder to contact the roller (22) continuously; a first bearing (24) installed in the cylinder (21), for rotatably supporting the driving shaft (13); a second bearing (300) installed in the cylinder (21), for rotatably supporting the driving shaft (13) and guiding the fluid into the fluid chamber (29); discharge ports (26) communicating with the fluid chamber (29); and a valve assembly (400) having openings (411, 412) separated by a predetermined angle from each other, for allowing the openings (411, 412) to selectively introduce the fluid into the fluid chamber (29) through the second bearing (300) at a predetermined position of the fluid chamber (29) according to rotation direction of the driving shaft (13), the valve assembly (400) having a center (410a) which is eccentrically installed by a predetermined distance from a center of the cylinder (29).
摘要:
A process for producing a procatalyst for the production of linear low density ethylene polymers comprising the steps of contacting: (a) an inorganic support; (b) an aluminium compound of formula (1): R3-N,AlCln (1) wherein R is a C1-C20 hydrocarbyl group or a C1-C20 hydrocarboxy group, n is 1 or 2; (c) a compound/mixture comprising hydrocarbyl and/or hydrocarbyl oxide linked to magnesium; (d) a titanium compound of formula (2): (OR′)4-xTiClx (2) wherein R′ is a C2-C20 hydrocarbyl group and X is an integer from 0 to 4; (e) an electron donor. The invention also included a method for preparing a polymerisation catalyst, components thereof, and polyethylene produced using said catalysts.
摘要:
Provided is a method of fabricating a passivation layer for an organic device, including: forming the organic device on a substrate; and forming a passivation layer on the organic device. Here, forming the passivation layer on the organic device includes forming an inorganic thin film by thin film deposition using pulsed plasma.
摘要:
Multi-ply tissue products are disclosed. The multi-ply tissue products contain tissue webs that have raised areas and depressed areas. The tissue webs may be constructed so as to be relatively non-compressive and may have a resilient three-dimensional structure. During production, in one embodiment, the tissue webs may be produced without being subjected to any substantial compression, such as a calendering process. Although not necessary in all applications, in one embodiment, the tissue webs may be combined such that the depressed areas contact each other to form the multi-ply product. The tissue webs, for instance, may comprise a through-air dried web in which the raised areas and the depressed areas are molded into the web. Tissue products made according to the present invention have enhanced absorption characteristics. For instance, the tissue products can have an interply absorbency of greater than about 3 g/g after 30 seconds.
摘要:
A soft, layered, single-ply wet-pressed tissue can be made with improved softness by providing one or both outer layers of the tissue with polysiloxane-treated pulp fibers. A particularly suitable wet-pressing process includes pressing a wet tissue web between a felt and a transfer belt to dewater the web, followed by transfer of the dewatered web to a texturizing fabric where the wet web is provided with a three-dimensional texture. Thereafter the texturized web is transferred to a Yankee dryer, dried and creped. The combination of the polysiloxane fibers and the texturizing step provides a particularly effective combination of surface feel, low stiffness and high bulk (caliper).
摘要:
An air conditioning system, comprising: a channel to carry a flow of refrigerant, and a first noise reducer to change at least one property of the refrigerant as the refrigerant flows through the channel.
摘要:
This invention provides compositions and methods for the treatment of cancer. An inhibitor cocktail buffer includes at least one sugar, a non-potassium containing buffer, and an inhibitor having the general formula: Such an inhibitor cocktail buffer allows for the efficacious and safe delivery of various compounds, including halopyruvates and derivatives thereof, to human cancer patients.
摘要:
A method of forming twisted, curly fibers from a wet wood pulp without the aid of a wet fluffing process or a chemical cross-linker. The method includes forming the wet wood pulp into fiber bundles and subsequently thermally drying the fiber bundles. The invention also includes curly fibers derived from the method of the invention.