摘要:
This invention includes a composition of Agastache rugosa and tilianin obtained by separation-purification for anti-inflammation and anti-atherosclerosis, and more particularly, an extract of Agastache rugosa and tilianin obtained therefrom by separation-purification which are effective in preventing and treating not only inflammatory diseases but also atherosclerosis related to inflammatory responses and disease in the circulatory system caused by atherosclerosis because they are excellent in inhibiting the activity of complement systems as a factor of inflammatory responses, the expression of intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecular-1 (VCAM-1), and the production of nitric oxide (NO). They can also significantly reduce the development of atherosclerosis due to the inflammatory response.
摘要:
The present invention relates generally to a phase change memory device and, more particularly, to a phase change memory cell array suitable for the implementation of a high-density memory device. The phase change memory cell array includes a first access transistor pair and a second access transistor pair formed on a semiconductor substrate to be adjacent to each other while each of the first and second access transistor pairs having a common drain, phase change resistance elements formed on source regions of the access transistors, respectively, and a semiconductor region formed on the same plane as the common drains to electrically connect the common drains of the first and second transistor pairs. The phase change memory cell array and the memory device of the present invention are suitable for the implementation of a high-density semiconductor device, and capable of improving the reliability of a contact forming process by securing a sufficient space for the contact forming process.
摘要:
Disclosed is a method of preparing sustained release microspheres by spray-drying liquids with different compositions for preparation the sustained release microspheres through an ultrasonic dual-feed nozzle. Unlike conventional methods of preparing sustained release microspheres by spray-drying a single liquid containing a biodegradable polymer, a drug, an additive and a solvent through a single-feed nozzle, the present method is characterized by simultaneously spray-drying two liquids with different compositions for preparation of the sustained release microspheres respectively through internal and external channels of an ultrasonic dual-feed nozzle to coat sprayed droplets through the internal channel with other sprayed droplets through the external channel. The present method is effective in achieving a low initial release and a desired continuous release.
摘要:
An OFDM transmission apparatus having minimal transmission delay comprises a training symbol storage and generation unit, a delay unit and a controller. The training symbol storage and generation unit stores training symbols for the preamble, and outputs the stored training symbols when a training symbol output request signal is received. The delay unit receives data for the signal field from the MAC layer, delays the received data by the data processing time of the scrambler, and outputs the delayed data to the convolution encoder. The controller outputs the training symbol output request signal, requesting the preamble of the frame, to the training symbol storage and generation unit when a frame transmission request is received from the MAC layer, and outputs a data request signal, requesting the signal field and the data field, to the MAC layer in consideration of total data processing time (TPROCESS).
摘要:
Non-activated tissue-regeneration polypeptides (TRPs) and their preparation methods are disclosed. The TRPs include: a protein transduction domain (PTD) making the polypeptides to permeate a cell membrane without cell membrane receptors; a furin activation domain (FAD) which has at least one proprotein convertase cleavage site and which can be cleaved by the proprotein convertase and activate a tissue regeneration domain (TRD) in cells; and a tissue regeneration domain (TRD) which can be activated by the proprotein convertase cleavage of the FAD to stimulate the growth or formation of tissues or to induce the regeneration of tissues. The TRPs can be mass-produced by cultured bacteria, such as recombinant E. coli, are in a non-activated state before in vivo administration, and their separation, purification, handling, storage and administration are simple and convenient. The in vivo administration of the TRPs is useful to stimulate the formation or regeneration of tissues, such as bones or cartilages, or to improve the fibrosis and cirrhosis of organs, such as kidneys, liver, lungs and heart by pharmacological mechanisms completely different from those of prior rhBMPs or TGF-β proteins.
摘要:
Non-activated tissue-regeneration polypeptides (TRPs) and the preparation methods thereof are disclosed. The TRPs contain: a protein transduction domain (PTD) making the polypeptides to permeate a cell membrane without cell membrane receptors; a furin activation domain (FAD) which has at least one proprotein convertase cleavage site and which can be cleaved by the proprotein convertase and activate a tissue regeneration domain (TRD) in cells; and a tissue regeneration domain (TRD) which can be activated by the proprotein convertase cleavage of the FAD to stimulate the growth or formation of tissues or to induce the regeneration of tissues. The TRPs can be practically mass-produced by the culture of bacteria, such as recombinant E. coli, and are in a non-activated state before in vivo administration. Thus, their production cost is only a few tenths of the prior active proteins having uses similar thereto, and processes for their separation, purification, handling, storage and administration are significantly simple and convenient. The in vivo administration of the TRPs can stimulate the formation or regeneration of tissues, such as bones or cartilages, or improve the fibrosis and cirrhosis of organs, such as kidneys, liver, lungs and heart by pharmacological mechanisims completely different from those of prior rhBMPs or TGF-β proteins. Accordingly, the TRPs will be useful as drugs having new mechanisms.
摘要:
Embodiments for providing a plurality of 3-dimensional ultrasound images by using a plurality of volume slices in an ultrasound system are disclosed. The ultrasound system comprises: an ultrasound data acquisition unit configured to transmit and receive ultrasound signals to and from a target object to acquire ultrasound data; a volume data forming unit configured to form volume data by using the ultrasound data; a user input unit for allowing a user to input a user instruction; and a processing unit configured to set a plurality of volume slice regions having different widths in the volume data in response to the user instruction and form a plurality of 3-dimensional ultrasound images by using volume slices defined by the volume slice regions.
摘要:
Embodiments for providing an ultrasound spatial compound image are disclosed. In one embodiment, by way of non-limiting example, an ultrasound system comprises: an ultrasound data acquisition unit configured to transmit and receive ultrasound signals to and from a target object to output first ultrasound data and a plurality of sets of second ultrasound data corresponding to a region of interest (ROI); a user input unit configured to receive input information for defining the ROI; and a processing unit in communication with the ultrasound data acquisition unit and the user input unit, the processing unit being configured to form volume data based on the plurality of sets of second ultrasound data, compare the first ultrasound data with the volume data to detect geometric information therein, form a two-dimensional (2D) ultrasound image based on the first ultrasound data, and a first three-dimensional (3D) ultrasound image and a second 3D ultrasound data based on the volume data in consideration of the geometric information, and perform a spatial compound upon the 2D ultrasound image, the first 3D ultrasound image and the second 3D ultrasound image based on the geometric information to form an ultrasound spatial compound image.
摘要:
The tactile transmission device includes a plurality of cells arranged at regular intervals, each having a storage space therein. A contact member is installed in each of the cells, an upper portion of the contact member protruding out of the cell. An elastic member is installed in each of the cells, and biases the contact member upwards. A sensor is installed in each of the cells, and measures displacement of the contact member. A magneto-rheological fluid is contained in each of the cells. A coil is installed in each of the cells and generates a magnetic field in the cell. A control means compares a shape information value of the image with a displacement value of the contact member output from the sensor, thus controlling a quantity of current applied to the coil. According to the present invention, the shape information of an image displayed on a screen is corrected to be suitable for a user's characteristics, thus more precisely transmitting the shape information on the screen to the user. Further, a transmission medium for transmitting a tactile sensation to a user has a simple construction, so that miniaturization of the tactile transmission device is very easily realized.
摘要:
A thin film transistor (TFT) array substrate and a transflective LCD device include a gate line and a data line which cross each other; a pixel region which has a transmissive region and a reflective region; a TFT electrically connected to the gate line and the data line; a pixel electrode formed in the pixel region to be electrically connected to the TFT; and a reflective electrode formed in the reflective region, wherein the distance between adjacent pixel electrodes or between the adjacent reflective electrodes with the data line interposed therebetween is in the range of about 3.5 to about 6 μm.