摘要:
There are provided a method of forming a solid microstructure, comprising: (a) preparing a viscous composition on a substrate; (b) contacting a contact protrusion of a lifting support with the viscous composition; (c) blowing air on the viscous composition to condensate and solidify the viscous composition; and (d) cutting the resultant material of step (c) to form the microstructure, and a solid microstructure prepared thereby. A solid microstructure may be manufactured, which can easily include drugs without denaturation or deactivation, has microscale diameters and sufficient effective length and hardness and is also sensitive to heat, and a solid microstructure with desired characteristics (for example, effective length, top diameter and hardness) may also be easily and quickly manufactured at a lower production cost.
摘要:
Disclosed herein are biodegradable solid microneedles and a fabrication method thereof. The microneedles are small in diameter and are long and hard enough to pass through the stratum corneum. Thus, the biodegradable solid microneedles can be used for painless transdermal drug delivery, the detection of biological samples such as blood, and biopsy.
摘要:
The present invention relates to a washing machine having legs at a base to adjust the height thereof. The washing machine includes a base, a plurality of legs, and an over-unscrewed prevention member. The base is formed at a bottom of the washing machine. The legs are disposed at the base and each having a bolt unit that is height-adjustably assembled at the base. The over-unscrewed prevention member is disposed at the bolt unit of each leg and caught by the base when the legs are unscrewed so as to set a maximum unscrew height of the legs.
摘要:
The present invention relates to an apparatus for manufacturing compacted irons of the reduced materials containing fine reduce irons and an apparatus for manufacturing molten irons provided with the same. The apparatus for manufacturing compacted irons according to the present invention includes a couple of rollers for compacting reduced materials containing fine reduced irons and manufacturing compacted irons, a guide chute for guiding compacted irons which are discharged from the couple of rollers; and crushers for crushing compacted irons which are guided into the guide chute. A guiding surface of the guide chute, which guides the compacted irons, includes a straight slanted surface and a curved slanted surface.
摘要:
Provided is a method of preparing an optically pure compound having formula 1 or its salts. The method includes: reacting (R)-2-(4-methoxy-3-aminosulfonyl-phenyl)-1-methylethylamine or its salts with a compound selected from the group consisting of chloroacetic acid, bromoacetic acid, fluoroacetic acid, iodoacetic acid, α-halogenoacetic acid anhydride, and α-halogenoacetyl halide in the presence of a base or an acylating agent.
摘要:
An electroluminescent display device, including M anode electrodes, N cathode electrodes intersecting the M anode electrodes at right angles, a light emitting layer disposed at each intersection of the M anode electrodes and N cathode electrodes, a testing line positioned at a peripheral position with respect to an outer-most cathode electrode of the N cathode electrodes, wherein the testing line being in communication with the M anode electrodes, and a testing emission layer disposed between the testing line and each of the M anode electrodes. Grounding the testing line and applying inverse voltage to the cathode electrodes facilitates detection of shorts in the display device.
摘要:
The present invention discloses a submerged hollow fiber membrane module which is of such a structure that it is easy to expand a module processing capability according to a treatment capacity, provides convenient module coupling properties and module manufacturing properties, maintains a stable flux under an efficient air diffusion condition and prevents the damage of membranes and water leakage caused by the loosening of module connecting regions. The submerged hollow fiber membrane module comprises [I] two module headers (2 and 2′) having a filtrate water collecting portion (3) for collecting filtrate water filtered through hollow fiber membranes and a filtrate water outlet (7), [II] an air diffusion unit 8 consisting of support tubes (9 and 9′) fixing the two module headers (2 and 2′) while keeping them spaced a predetermined distance and air diffusion tubes (11 and 11′) having air diffusion holes (13), and [III] a bundle of hollow fiber membranes (1) having both opposite ends fixed to the insides of the module headers (2 and 2′) by an adhesive (6) so as to form a water collecting space within the module headers (2 and 2′), the ends (5) of the hollow portions of the hollow fiber (20) membranes being opened and disposed in parallel to a filtrate water discharge surface (4).
摘要:
The present invention relates to an optical recording medium. The optical recording medium according to one embodiment of the present invention includes a substrate and an information recording layer located on the substrate. The information recording layer includes a first recording layer containing at least one element selected from the group consisting of Ag, In, Ge, Sb and Te, a second recording layer containing at least one element selected from the group consisting of Si, Sn, Sb and Ge, and a third recording layer containing at least one element selected form the group consisting of Ni, Ag, Au, W, Cr and Mo. Therefore, the optical recording medium of the present invention may reduce the thickness and manufacturing cost by consisting of three recording layers and eliminating the reflective layer and the dielectric layer.
摘要:
The present invention relates to an optical recording medium. The optical recording medium according to one embodiment of the present invention includes a substrate, a reflective layer located on the upper side of the substrate and reflecting an incident laser beam, and an information recording layer located on the reflective layer. The information recording layer includes a first recording layer containing a compound in the form of AXB1-X (0.1≦X≦0.9), wherein A is one element selected from the group consisting of Ni, Ag, W and Cr, and B consists of at least one element selected from the above group except for the one element corresponding to A, and a second recording layer containing at least one element selected from the group consisting of Si, Sn, Sb and Ge. The laser beam is irradiated on the first recording layer prior to the second recording layer. Therefore, the optical recording medium of the present invention may provide high recording density and transmittance velocity suitable for BD system by combining the recording layer materials.
摘要翻译:本发明涉及光记录介质。 根据本发明的一个实施例的光记录介质包括基板,位于基板上侧的反射层并反射入射激光束,以及位于反射层上的信息记录层。 信息记录层包括含有A 1 X 1-X X(0.1 <= X <= 0.9)形式的化合物的第一记录层,其中A为1 选自由Ni,Ag,W和Cr组成的组的元素,B由除了对应于A的一个元素之外的上述组中的至少一种元素和包含至少一种选自以下的元素的第二记录层 由Si,Sn,Sb和Ge组成的组。 激光束在第二记录层之前照射在第一记录层上。 因此,通过组合记录层材料,本发明的光记录介质可以提供适用于BD系统的高记录密度和透射率。
摘要:
A porous low-dielectric constant thin film with controlled solvent diffusion into pores of the porous thin film. The porous thin film i s formed from a composition including a porogen containing at least one π-π interacting functional group, a thermostable matrix precursor, and a solvent dissolving the porogen and the matrix precursor. The porous thin film thus formed has mesopores not smaller than 10 nm in size and has a solvent diffusion rate not higher than 30 μm2/sec. Due to the presence of the large pores, the porous thin film can greatly inhibit solvent diffusion into the pores of the thin film, which is encountered during wet processes, without substantial changes in dielectric constant, elastic modulus and hardness depending on the porosity of the thin film.