摘要:
The present invention relates to an automatic fire extinguishing system for small spaces using fire extinguishing agents comprising the automatic fire extinguishing system to be installed in a small space, wherein the moving member is moved by an elastic body installed in the housing when the glass bulb installed in the housing is broken by heat from a fire; the fire extinguishing agents breaks the membrane of the tank storing the pressurized fire extinguishing agents with the striking member connected with the moving member; the striking member connected with the moving member breaks the membrane of the tank which stores pressurized fire extinguishing agents; and the pressurized fire extinguishing agents are spread to the small space, which leads to suppressing the fire at an early stage. When a fire breaks out in a small space susceptible for a fire such as distribution boxes, substation boxes, refrigerators, server racks, etc., the glass bulb installed inside the housing will be broken by heat; the moving member is moved by the elastic force of the elastic body; the striking member breaks the membrane blocking the opening of the tank; and the fire extinguishing agents pressurized in the tank are dispersed, which makes it easier to suppress a fire at an early stage.
摘要:
The present invention provides a method for synthesizing cationic bleach activators via a single-bath reaction, comprising steps of: separately dissolving 4-chloromethylbenoyl chloride and lactam in its respective solvent, adding an acid-binding agent to the lactam solution, next adding dropwisely 4-chloromethylbenoyl chloride solution into the lactam/acid binding-agent solution, and finally adding tertiary amine to the solution above to make a reaction solution, which is further treated with mixing and refluxing. The washed and dried final product is TBLC cationic bleach activator. The method of the present invention greatly simplifies the synthesizing process and lowers the stringency of reaction conditions for preparing cationic bleach activators (TBLC). At the same time, the present method produces TBLC cationic bleach activators with high yields, making it a suitable option for industrial production of these bleach activators.
摘要:
A portable device for alleviating menstrual pain through transcutaneous electrical nerve stimulation (TENS) and thermal stimulation includes a transcutanous electrical nerve stimulating electrode pad and a planar heater embedded in the stimulating electrode pad. The stimulating electrode pad is a patch type one which is attachable/detachable to/from any body part with menstrual pain. The device further includes a power portion for supplying power to the menstrual pain alleviating unit, and an operation processing portion for generating a transcutaneous stimulating electrode control signal for controlling the transcutaneous stimulating electrode pad and a planar heater control signal for controlling the planar heater. The device further includes a temperature sensor mounted on the planar heater to sense the temperature of the planar heater, and an A/D converter for converting the signal output from the temperature sensor into a digital signal.
摘要:
A method of guiding a menu, including storing route information generated based on hierarchical relationships of menus according to a tree structure, and displaying menu items using an on screen display and displaying a location and a function of a menu a user would like to find through a simulated menu using route information.
摘要:
Disclosed is coated paper having a coating structure in which styrene-butadiene latex distribution of a paper coating layer is controlled in order to reduce fold cracking of the coated paper and a method for manufacturing the same. The coated paper in which different types of latexes are separately applied to two coating layers exhibits considerably improved stiffness and reduced fold crack, as compared to the existing coated paper.
摘要:
The present invention provides a latex resin composition for rubber gloves without sulfur and a vulcanization accelerator and a method of manufacturing dip-formed article using the composition. The composition comprises a conjugated diene monomer; an ethylenically unsaturated nitrile monomer; an ethylenically unsaturated acid monomer; an ethylenically unsaturated monomer copolymerizable with the ethylenically unsaturated nitrile monomer and the ethylenically unsaturated acid monomer; and a reactive compound including two or more reactive groups. According to the manufacturing method, productivity is improved by omitting a long maturation process included in a traditional glove manufacturing process; not only an adverse effect caused by traditional sulfur and vulcanization accelerator is reduced but also rubber gloves with excellent physical properties can be provided.
摘要:
The present invention relates to a preparation method of a superabsorbent polymer, and specifically to a method of preparing a superabsorbent polymer including the steps of: preparing a hydrous gel phase polymer by thermal polymerizing or photo-polymerizing a monomer composition including a water-soluble ethylene-based unsaturated monomer and a polymerization initiator; drying the hydrous gel phase polymer; milling the dried polymer; classifying the milled hydrous gel phase polymer into two or more grades by particle size; adding a surface cross-linking agent to each hydrous gel phase polymer classified into two or more grades; and carrying out a surface cross-linking reaction of the hydrous gel phase polymer to which the surface cross-linking agent is added.
摘要:
Disclosed is a binder, which comprises polymer particles obtained by polymerization of: (a) 1˜80 parts by weight of a (meth)acrylic acid ester monomer; (b) 1˜20 parts by weight of an unsaturated carboxylic acid monomer; and (c) 0.001˜40 parts by weight of a vinyl monomer, based on 100 parts by weight of the binder polymer, and which allows electrode active material particles capable of lithium intercalation/deintercalation to be fixed and linked among themselves, and between the particles and a collector. An electrode comprising the binder, and a lithium secondary battery having the electrode are also disclosed. Further, a method for evaluating interrelation between wettability of a binder to an electrolyte and quality of a battery comprising the binder is disclosed. The binder shows excellent adhesion as well as excellent wettability to an electrolyte, and thus can improve rate characteristics and lifespan characteristics of a battery, when used in an electrode for a lithium secondary battery.
摘要:
Provided is a time-domain voltage comparator including a voltage-time converter. The voltage-time converter includes a conversion unit and an output unit. The conversion unit includes a first MOS transistor which shifts a voltage level of the first detection node according to an external first voltage signal, and a second MOS transistor which shifts a voltage level of the second detection node according to an external second voltage signal. The output unit generates first and second output signals in response to voltages of the first and second detection nodes. The output unit determines a shifted time of the first output signal according to a voltage level of the first detection node and determines a shifted time of the second output signal according to a voltage level of the second detection node.
摘要:
The present invention relates to a portable device for alleviating menstrual pain through transcutaneous electrical nerve stimulation (TENS) and thermal stimulation. More particularly, the present invention relates to a portable device for alleviating menstrual pain by applying transcutaneous electrical nerve stimulation to the abdominal and back area of a user through the use of a planar heart embedded in the stimulating electrode pad. The stimulating electrode pad is a patch type one which is attachable/detachable to/from any body part with menstrual pain. The portable device for alleviating menstrual pain in the public area of the user according to the present invention comprises, a menstrual pain alleviating unit and a main body unit. The menstrual pain alleviating unit includes a transcutaneous stimulating electrode pad portion provided with a transcutaneous stimulating electrode to apply transcutaneous stimulation to the abdominal or back area of the user, and a planar heater portion provided with a planar hater to apply thermal stimulation to the abdomen of the user. The main body unit includes a power portion for supplying power to the menstrual pain alleviating unit, and an operation processing portion for generating a transcutaneous stimulating electrode control signal for controlling the transcutaneous stimulating electrode pad portion and a planar heater control signal for controlling the planar heater portion. The menstrual pain alleviating unit further includes a temperature sensing portion provided with a temperature sensor mounted on the planar heater portion to sense the temperature of the planar heater portion, and an A/D converting portion for converting the signal output from the temperature sensing portion into a digital signal.