Abstract: A window system according to an aspect of the invention includes: a window frame; an inner window installed at an indoor side of the window frame; an outer window fixed to the window frame and spaced apart from the inner window with a predetermined distance at an outdoor side to form a hollow layer between the outer window and the inner window; an air-flowing opening formed between the outer window and the window frame to form a flow path in which air in the hollow layer flows or circulates; and an opening and closing device provided at one side of the inner window to open and close the inner window from the window frame. The outer window may include a tinted glass or a glass having a high absorption rate and a bracket for fixing the tinted glass to the window frame.

Abstract: The present disclosure described herein pertain generally to a method for stabilizing and improving a soil by using a high-molecular viscous biopolymer, a soil composition for promoting germination or growth of vegetation, a composition for preventing soil erosion, and a soil construction material and member.

Abstract: Disclosed is a smoke control system provided in a high-rise building for separately supplying leakage air flow and supplementary air flow, including: a blowing means for supplying air into a building; a ventilating means having a leakage air flow supplying passage and a supplementary air flow supplying passage connected to the blowing means for introducing air; and an air supply damper connected to the leakage air flow supplying passage and the supplementary air flow supplying passage to supply air into each lobby of a building according to the leakage air flow and supplementary air flow.

Abstract: Disclosed herein is a hybrid ventilation apparatus capable of both natural and forced ventilation. In the case of a natural ventilation mode, a worm gear is rotated in a normal direction by drive force of a drive unit under control of a control unit so that a pressing member engages with a rotation guide protrusion and rotates a damper, thus opening a flow passage, and then the worm gear is reversely rotated by drive force of the drive unit to return the pressing member to its original position, thus allowing a user to rotate a roller upwards and downwards and rotate the damper so that the degree of opening of the flow passage can be adjusted. Thereby, rapid inflow of outdoor air can be blocked, and a cold graft phenomenon, in which the temperature of indoor air rapidly drops, can be prevented.

Abstract: According to one aspect of the invention, an inlet of an underground reservoir having a multiple-stage structure includes: a flow portion, wherein water flowing in the flow portions; a drop portion transporting the water to a underground reservoir from the flow portion; and an inlet portion having a multiple-stage structure to generate a vortex in the water to be transported to the drop portion.

Abstract: A filling material according to an embodiment of the invention includes: an outer cover material having elasticity; an expansion material being inserted into an inside of the outer cover material, wherein the expansion material being compressed when the inside of the outer cover material is evacuated; a nozzle being provided at one end of the outer cover material, wherein air is evacuated from the inside of the outer cover material or air is injected to the inside of the outer cover material to expand the outer cover material through the nozzle; and a stopper for blocking the nozzle in a state that the inside of the outer cover material is evacuated to maintain the inside of the outer cover material to be vacuous.

Abstract: Disclosed herein is a meteorological observation system using vehicles. The meteorological observation system using vehicles includes a meteorological observation device embedded in each of the vehicles and configured to periodically detect surrounding weather information and to photograph weather conditions, the vehicle configured to run on a road using radar devices for detecting the front and right and left sides of the vehicle, that is, sensors for supporting driving and prevent a collision, and to provide mobility to the meteorological observation device, a meteorological server configured to collect pieces of the weather information from the meteorological observation devices moving in respective areas through wireless communication and to provide the pieces of weather information to a meteorological observation center, the meteorological observation center configured to use information, received from the meteorological server, as statistical data or meteorological observation and forecast data.

Abstract: The present invention provides a porous material having micropores capable of storing and releasing heat by phase change, which comprises a phase change material inserted into the micropores of a porous material medium such as activated carbon or silica gel so as to be capable of storing and releasing energy, and a preparation method thereof. The method comprises the steps of: pre-treating a porous material medium to remove impurities from the micropores of the porous material medium, thereby opening the micropores; pre-treating a phase change material to make it possible to insert the phase change material into the micropores of the porous material medium; inserting the pretreated phase change material into the pretreated porous material medium; filtering the porous material medium filled with the phase change material to remove the phase change material remaining after the insertion step; and washing the filtered material.

Abstract: A rod-shaped FRP bar is manufactured with a fiber and a resin by using a nozzle 100 which includes an outer nozzle 11 having a penetration hole at its center and a plurality of middle nozzles 12 disposed at an inlet of the outer nozzle 11 so that one middle nozzle is located inside another middle nozzle with an interval. Fibers are supplied through a center hole of the middle nozzle located at an innermost location, through intervals between the middle nozzles and through intervals between the middle nozzles and the outer nozzle, thereby making a hybrid FRP bar 1 having a section in which the fibers configure a plurality of fiber distribution layers from the center of the FRP bar toward the outside.

Abstract: An integrated rainfall calculation method using X-band dual-polarimetric radar measurement data includes a precipitation classification step of classifying hydrometeors into four types of snow, rain/snow, rain and non-meteorological target through a fuzzy logic technique using a correlation coefficient (cross correlation coefficient, ?hv), features of a measured differential propagation phase (?dp(r)) or differential propagation phase (?dp) and a signal-to-noise ratio (SNR) as input variables (input feature vector); a specific differential phase calculation step of separately calculating a specific differential phase by applying a specific differential phase using a total difference of differential phase and signal-attenuation corrected reflectivity for the rain among the classified hydrometeors and applying a specific differential phase calculated using a filtering method for the other hydrometeors; and a rainfall calculation step of calculating rainfall by using a relation between the specific differential

Abstract: A rod-shaped FRP bar is manufactured with a fiber and a resin by using a nozzle (100) which includes an outer nozzle (11) having a penetration hole at its center and a plurality of middle nozzles (12) disposed at an inlet of the outer nozzle 11 so that one middle nozzle is located inside another middle nozzle with an interval. Fibers are supplied through a center hole of the middle nozzle located at an innermost location, through intervals between the middle nozzles and through intervals between the middle nozzles and the outer nozzle, thereby making a hybrid FRP bar (1) having a section in which the fibers configure a plurality of fiber distribution layers from the center of the FRP bar toward the outside.

Abstract: Provided are a method of semi-quantitatively evaluating concrete carbonation including the steps of a specimen preparing step of preparing a concrete specimen for identifying a degree of carbonation, a carbonation depth measuring step of measuring a carbonation depth of the specimen by a method of promoting carbonation of the specimen using a carbonation promoting tester and applying an indicator, an X-ray diffraction (XRD) analyzing step of qualitatively analyzing components of the specimen by an XRD method after cutting the specimen from a top end to a predetermined depth and crushing the specimen. Thus, the method of the present invention may calculate the exposure time of concrete carbonation by converting the analysis result value of XRD to the result value of TG-DTA.

Abstract: Disclosed is a method of enhancing fire resistance of high-strength concrete by mixing a spalling reducer (fiber cocktail) into the concrete to control spalling and performing shear reinforcement of main steel bars using shear stiffeners based on a wire rope and spacers.

Abstract: The present invention provides an activated carbon which is used in an activated carbon electrode plate and a method of preparing an activated carbon electrode plate prepared using the same, in which the activated carbon electrode plate functions to remove gas and gaseous air pollutants at the same time. The method comprises the steps of: providing a raw pure activated carbon or an impurity-containing raw activated carbon; processing the raw activated carbon into a powdered activated carbon; treating the pores of the powdered activated carbon to maintain the pores; filtering the powdered activated carbon whose pores were treated, and mixing the filtered activated carbon with a binder to form a binder/activated carbon mixture; forming the binder/activated carbon mixture into a flowable activated carbon slurry; applying the activated carbon slurry to the surface of a conductive material; and drying the conductive material having the activated carbon slurry applied thereto.

Abstract: Provided are a method of semi-quantitatively evaluating concrete carbonation including the steps of a specimen preparing step of preparing a concrete specimen for identifying a degree of carbonation, a carbonation depth measuring step of measuring a carbonation depth of the specimen by a method of promoting carbonation of the specimen using a carbonation promoting tester and applying an indicator, an X-ray diffraction (XRD) analyzing step of qualitatively analyzing components of the specimen by an XRD method after cutting the specimen from a top end to a predetermined depth and crushing the specimen. Thus, the method of the present invention may calculate the exposure time of concrete carbonation by converting the analysis result value of XRD to the result value of TG-DTA.

Abstract: A method for preparing pellets from rice husk includes: grinding rice husk; adding ammonia water to a mixture of ethylene vinyl acetate and poly(vinylacetate) to prepare a mixed liquid binder; mixing the mixed binder with the ground rice husk to obtain a binder/rice husk mixture; extruding the binder/rice husk mixture through an extruder; and cooling the extruded mixture at room temperature.

Abstract: Provided are a low carbon additive for a warm-mix asphalt (WMA) mixture, in which vegetable wax based on modified palm wax is mixed into polyethylene wax so as to be able to promote high-temperature physical properties of the WMA mixture as well as solve problems on low-temperature physical properties of the WMA mixture, warm-mix asphalt produced using the same, and a method of producing the WMA mixture using the using the warm-mix asphalt. The low carbon additive contains polyethylene wax and vegetable wax at a weight ratio of 20:1 to 1:2. The modified palm wax employs palm wax that melt-reacts with sodium hydroxide (NaOH) and stearic acid (CH3(CH2)16COOH). This low carbon additive enables the WMA mixture to be efficiently produced, and thus makes it possible to reduce heating energy required when the WMA mixture is produced. Thereby, it is possible to remarkably reduce the emission of carbon dioxide that is a principal factor of global warming.

Abstract: A horizontal resistance of an underwater pile is measured using a horizontal load applying apparatus which applies a horizontal load to the underwater pile to measure a horizontal resistance of the underwater pile by changing a direction of a penetration force generated when a suction pile penetrates an underwater ground.

Abstract: Provided is a method for fire-proofing a composite slab constructed of beams installed between columns, a deck plate installed between the beams and slab concrete poured on the beams and the deck plate using a wire rope. Fire-proofing performance of the composite slab manufactured according to the present invention can be enhanced by transferring the load transferred from the deck plate to the upper portion of the beam via the wire rope.

Abstract: Disclosed herein is a meteorological observation system using vehicles. The meteorological observation system using vehicles includes a meteorological observation device embedded in each of the vehicles and configured to periodically detect surrounding weather information and to photograph weather conditions, the vehicle configured to run on a road using radar devices for detecting the front and right and left sides of the vehicle, that is, sensors for supporting driving and prevent a collision, and to provide mobility to the meteorological observation device, a meteorological server configured to collect pieces of the weather information from the meteorological observation devices moving in respective areas through wireless communication and to provide the pieces of weather information to a meteorological observation center, the meteorological observation center configured to use information, received from the meteorological server, as statistical data or meteorological observation and forecast data.