Abstract:
A cool air feeding system that senses a temperature of each part of a refrigerator compartment, compares the sensed temperature with a reference temperature, determines which part is to be cooled, and redistributes cool air to better cool a part of the refrigeration having a greater need to be cooled. Cool air redistribution is achieved using a single value having multiple openings. Such a valve can take the form of cylindrical manifold and a corresponding cylindrical, unitary-body flow distributor, for example.
Abstract:
A process is provided which allows economical production of polyolefin separation membranes having various structures, porosities and pore sizes. The process involves using a melt blend solution consisting of a polyolefin such as polypropylene or polyethylene and a diluent selected from the group consisting of natural soybean oil, pure linoleic acid, or a mixtures of oleic acid, linoleic acid and palmitic acid.
Abstract:
Current techniques for measuring chemical expansion in thin film structures are too slow, too imprecise, or require synchrotrons. In contrast, nanoscale electrochemomechanical spectroscopy (NECS) can be used to make nanoscale measurements at time scales of seconds with simple contact or non-contact sensors. In a NECS measurement, a sample, such as thin-film oxide structure, is subjected to a temporally modulated stimulus, such as a sinusoidally alternating voltage. The stimulus causes the sample to expand, contract, deflect, or otherwise deform. A sensor, such as a contact probe or optical sensor, produces an electrical signal in response to this deformation that is correlated with the temporal modulation of the stimulus. Because the stimulus and deformation are correlated, the temporal modulation of the stimulus can be used to filter the deformation signal produced by the sensor, producing a precise, sensitive measurement of the deformation.
Abstract:
The present invention relates to an intelligent porous biodegradable polymer scaffold for in situ tissue regeneration in which two kinds of physiologically active substances having high differentiation potential and biocompatibility are introduced into the polymer scaffold and conjugated to the surface thereof, respectively, and a method for the preparation thereof. Since the intelligent porous biodegradable polymer scaffold exhibits improved biocompatibility and differentiation potential due to the introduction of physiologically active substances capable of efficiently inducing cell proliferation and differentiation into both the surface and the inside thereof, it can directly induce in situ tissue regeneration of the musculoskeletal system from stem cells in a living tissue after transplanting the polymer scaffold and stem cells into a human body without additional in vitro cultivation. Therefore, the intelligent porous biodegradable polymer scaffold according to the present invention can be effectively used in the regeneration of various kinds of tissues and organs including the musculoskeletal system.
Abstract:
A lighting device may be provided that includes: a light emitting module; a heat sink disposed on the light emitting module; a heat radiating fan disposed on the heat sink; and a housing which receives the light emitting module, the heat sink and the heat radiating fan, and includes an air inlet port and an air outlet port which are separated from each other, and includes a partition separating the air inlet port from the air outlet port, wherein the air inlet port is connected to a space between the heat radiating fan and the housing, and wherein the air outlet port is connected to a space between the heat sink and the heat radiating fan.
Abstract:
The present invention enables a user to receive a financial service anywhere through a mobile terminal equipped with a UIM (User Identification Module) electronic card. In the present invention, a user enters his or her password to a mobile terminal with a UIM card including subscriber telephone number, finance, authorization, and personal information, then, if the entered password is correct, authorization is processed with a remote authorizing server based on the authorization information. After authorization, user's requesting service, e.g., payment service, transaction particulars inquiry service, prepaid card recharging service is conducted through a mobile network.
Abstract:
An apparatus and method for delay time computation and delay compensation between a Base Station (BS) and a remote Radio Frequency (RF) unit in a broadband wireless access system are provided. In a method of operating an apparatus for determining a delay time to compensate for delay between a BS modem card and a remote RF unit in a wireless access system, the method includes determining a process delay time required when traffic data is output from the BS modem card to an antenna of the remote RF unit in a state where a reference cable having a length short enough to neglect a cable delay time is connected between the BS modem card and the remote RF unit, determining a cable delay time required when a sync pulse signal is transmitted through a cable used in actual system operation between the BS modem card and the remote RF unit, and determining a time for outputting traffic data at an earlier time from a modem included in the BS modem card by using the determined process delay time and cable delay time.
Abstract:
A lighting device may be provided that includes: a light emitting module; a heat sink disposed on the light emitting module; a heat radiating fan disposed on the heat sink; and a housing which receives the light emitting module, the heat sink and the heat radiating fan, and includes an air inlet port and an air outlet port which are separated from each other, and includes a partition separating the air inlet port from the air outlet port, wherein the air inlet port is connected to a space between the heat radiating fan and the housing, and wherein the air outlet port is connected to a space between the heat sink and the heat radiating fan.
Abstract:
A method for high resolution ink-jet print using a pre-patterned substrate employs an ink-jet printing device including an ink-jet head for discharging conductive ink droplets and a driving stage for supporting a substrate to which the conductive ink droplets are hit, to draw a fine line width pattern on the substrate. The method includes (A) forming a stripe pattern with repeated stripes on a substrate surface on which a fine line width pattern will be formed, thereby preparing a pre-patterned substrate; (B) loading the substrate to the ink-jet printing device; and (C) injecting conductive ink droplets to a substrate region where the stripe pattern is formed. An equivalent interval (d) of the stripe pattern and a fine line width (D) of the drawn fine line width pattern satisfy a relation of d
Abstract:
A light guide plate having a pattern to minimize generation of a dark zone and a backlight unit including the same are disclosed. The light guide plate includes an intaglio pattern consisting of recesses formed in a surface opposite to a light emitting surface thereof to have a cross section having major-axis and minor-axis diameters and depth, the recesses being spaced apart from one another in first and second directions by first and second distances respectively. The density of the intaglio pattern is directly proportional to the major-axis and minor-axis diameters and depth, and is inversely proportional to the first and second distances. The intaglio pattern has the minimum density in a first region adjacent to a light source, and the maximum density in a second region that is the maximum distance from the light source. A density ratio of the maximum density to the minimum density is 900.