Abstract

The present invention relates to an energy management system and method in a flexible energy community, and the energy management system in a flexible energy community according to an embodiment of the present invention comprises: a community agent which is linked to energy resources and facilities located in a building in a flexible energy community on the basis of an interface, and collects energy data or transfers a control signal via the interface-based linkage; and a community energy management device which monitors community resources via association with the community agent, analyzes energy efficiency for the monitored community resources, and manages flexible energy according to demand and supply conditions of the flexible energy community on the basis of a multi-energy sharing grid topology using at least one of distributed resources, sector coupling facilities, energy supply facilities, common facilities, and sub-meters.

IPC Classes  ?

• G06Q 50/06 - Energy or water supply
• H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks
• H02J 3/14 - Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading

Abstract

A desalination aquaculture facility comprises: a desalination apparatus which filters and desalinates brackish water to provide filtered fresh water; a first circulation filtration apparatus which re-filters the filtered fresh water provided from the desalination apparatus; and a second circulation filtration apparatus which receives non-desalinated, concentrated brackish water from the desalination apparatus and re-filters the received concentrated brackish water. The desalination apparatus comprises: a brackish water supply unit for supplying brackish water; a brackish water filtration unit which filters out foreign substances from the brackish water supplied from the brackish water supply unit; and a desalination unit which desalinates the filtered brackish water filtered in the brackish water filtration unit, supplies the desalinated filtered fresh water to the first circulation filtration apparatus, and supplies the non-desalinated, concentrated brackish water to the second circulation filtration apparatus.

IPC Classes  ?

• A01K 63/04 - Arrangements for treating water specially adapted to receptacles for live fish
• A01K 61/10 - Culture of aquatic animals of fish
• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
• C02F 1/32 - Treatment of water, waste water, or sewage by irradiation with ultraviolet light
• C02F 1/78 - Treatment of water, waste water, or sewage by oxidation with ozone
• A01G 31/02 - Special apparatus therefor
• C02F 1/00 - Treatment of water, waste water, or sewage
• C02F 3/30 - Aerobic and anaerobic processes

Abstract

This releasable quick connector comprises: a connector body formed such that the cross-sectional area of the inner peripheral surface thereof is gradually reduced toward one side thereof; a plurality of fixing members arranged to correspond to the inside of the connector body, and aligned such that an insertion space is formed therein; an insert that moves from one side of the connector body to the other side, which is opposite to the one side, so as to be inserted into the insertion space and engage with the inner peripheral surfaces of the fixing members; a first elastic member for providing elastic force to press the plurality of fixing members in the direction of moving same toward the one side; and a remover connected to the first elastic member such that the first elastic member is in a pressing-maintenance state of pressing the plurality of fixing members toward the one side or in a pressing-release state of not pressing the fixing members, wherein, in the pressing-maintenance state, the plurality of fixing members press the insert toward the center of the insert so as to block movement of the insert toward the one side while the outer peripheral surfaces of the plurality of fixing members are in contact with the inner peripheral surface of the connector body and the distance therebetween is reduced and, in the pressing-release state, the plurality of fixing members have increased distance therebetween while moving toward the other side so as to permit movement of the insert toward the one side.

IPC Classes  ?

• E04C 5/16 - Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups

Abstract

The present invention relates to a joint structure of a modular building coupled without fastening. Specifically, an embodiment of the present invention may provide a joint structure of a modular building coupled without fastening, the joint structure comprising: a first frame assembly having a first fastening hole formed therein; a second frame assembly having a second fastening hole formed therein and disposed at one side of the first frame assembly; and a connector for connecting the first frame assembly and the second frame assembly, wherein the connector includes an insert extending in a first direction and inserted into the first frame assembly through the second fastening hole and the first fastening hole, and an insert fixing piece engaging with the insert, and the insert fixing piece is eccentric with respect to the center of the first fastening hole in a second direction deviated from the first direction so that the insert fixing piece engages with the insert.

IPC Classes  ?

• E04B 1/343 - Structures characterised by movable, separable, or collapsible parts, e.g. for transport
• E04B 1/41 - Connecting devices specially adapted for embedding in concrete or masonry
• F16B 2/06 - Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action

Abstract

The present invention relates to a modular building connector that couples without fastening. Particularly, according to one embodiment of the present invention, provided is a modular building connector that couples without fastening, comprising: a body unit including a connector body formed such that the inner peripheral surface thereof has a cross-sectional area that becomes smaller toward one side thereof; one or more fixing members, which are disposed in the connector body, have outer peripheral surfaces corresponding to the inner peripheral surface of the connector body, and are aligned such that an insertion space is formed therein; and an insert, which moves from one side of the connector body toward the other side opposite to the one side, so as to be inserted into the insertion space and engage with the inner peripheral surface of the fixing member, wherein when the one or more fixing members are applied, while having the inert inserted a predetermined length into the insertion space, with external force in the direction of moving same toward the one side, the outer peripheral surfaces of the one or more fixing members come in contact with the inner peripheral surface of the connector body and the distance between the fixing members is reduced so as to press the insert toward the center of the insert, thereby blocking the movement of the insert toward the one side.

IPC Classes  ?

• E04B 1/41 - Connecting devices specially adapted for embedding in concrete or masonry
• F16B 2/06 - Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
• E04B 1/343 - Structures characterised by movable, separable, or collapsible parts, e.g. for transport

Abstract

A recirculating aquaculture facility comprising: a recirculation system for purifying the circulating water discharged from a water tank; and a water intake system for supplying feed water to the recirculation system so as to replenish the feed water. The water intake system comprises: a feed water intake part for supplying feed water; a feed water filtration part for filtering out foreign matter of a predetermined size or more from the feed water supplied from the feed water intake part; a particle counter part for counting particles of a predetermined range size in the filtered feed water; a microparticle filtration part for filtering out microparticles of predetermined size or more from the feed water if particles of a predetermined range size are counted in the feed water by means of the particle counter part; and a feed water sterilization part which receives the feed water from the particle counter part and the microparticle filtration part and sterilizes same, and which supplies the sterilized feed water to the recirculation system.

IPC Classes  ?

• A01K 63/04 - Arrangements for treating water specially adapted to receptacles for live fish
• C02F 3/34 - Biological treatment of water, waste water, or sewage characterised by the microorganisms used
• C02F 1/20 - Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
• C02F 1/32 - Treatment of water, waste water, or sewage by irradiation with ultraviolet light
• C02F 3/30 - Aerobic and anaerobic processes

Abstract

A complex desalination system using a seawater desalination pressure retarded osmosis technology may comprise: a pretreatment facility for pre-filtering seawater; a first pressure exchange device for receiving the seawater supplied from the pretreatment facility to increase pressure thereof; a second pressure exchange device for receiving at least a portion of the seawater supplied from the first pressure exchange device to increase pressure thereof; a first pressure adjustment device for receiving the remaining portion of the seawater supplied from the first pressure exchange device to pressurize same; a second pressure adjustment device for receiving the seawater supplied from the second pressure exchange device to pressurize same; a seawater reverse osmosis facility for producing product water by filtering out salt from the seawater supplied from the first pressure adjustment device and the second pressure adjustment device through a seawater desalination reverse osmosis membrane and transferring, to the second pressure exchange device, seawater reverse osmosis brine from which salt has not been removed; a brackish water reverse osmosis facility for receiving effluent supplied from a sewage treatment plant, filtering same through a brackish water desalination reverse osmosis membrane, and discharging unfiltered brackish water reverse osmosis brine; and a pressure retarded osmosis facility for supplying pressure retarded osmosis produced water filtered by performing a pressure retarded osmosis process on the seawater reverse osmosis brine and the brackish water reverse osmosis brine supplied from the second pressure exchange device and the brackish water reverse osmosis facility, respectively, to the first pressure exchange device.

IPC Classes  ?

• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
• B01D 61/02 - Reverse osmosisHyperfiltration
• B01D 61/08 - Apparatus therefor
• B01D 61/10 - AccessoriesAuxiliary operations
• C02F 103/08 - Seawater, e.g. for desalination

Abstract

Disclosed in the present invention is a pile pressing method comprising: a primary pressing step of transporting a first pile (11) of a plurality of piles (10) so as to support same in an erect state on the pressing point of the ground, and pressurizing the first pile (11) so as to press same into the ground; a secondary pressing step of transporting a second pile (12) of the plurality of piles (10) so as to support same in an erect state on the pressing point of the ground, coupling the lower end of the second pile (12) to the upper end of the first pile (11), and pressurizing the second pile (12) so as to press same into the ground; a continuous pressing step of pressing, by means of a method which is the same as that of the secondary pressing step, the plurality of piles (10) into the ground while sequentially coupling same; a target load (W1) and target speed setting step of respectively setting, as a target load (W1) and a target speed (v1), a pressing load (W) and a pressing speed (v) when a state in which the support strength of a pile base structure is ensured is reached; and a pressing operation completion step of completing the continuous pressing step when the measured pressing load (W) of the pile (10) reaches the preset target load (W1) and the measured pressing speed (v) of the pile (10) reaches the preset target speed (v1) during the continuous pressing step, and thus the present invention can easily ensure the structural stability of all of the plurality of constructed pile base structures.

IPC Classes  ?

• E02D 7/20 - Placing by pressure or pulling power

Abstract

The present invention relates to evaporation gas compression equipment. Specifically, according to an embodiment of the present invention, the evaporation gas compression equipment may comprise: a rotation shaft member including a first locking unit and a second locking unit; a first compression unit including a first engagement unit engaged with and driven by the first locking unit and a first compression cylinder unit for compressing evaporation gas therein by power transmitted from the first engagement unit; a second compression unit including a second engagement unit engaged with and driven by the second locking unit and a second compression cylinder unit for compressing evaporation gas therein by power transmitted from the second engagement unit; a first supply passage having an end connected to the first compression cylinder unit and configured to provide a fluid channel for the evaporation gas supplied to the first compression cylinder unit; and a first connecting passage configured to provide a fluid channel through which the compressed evaporation gas flows from the first compression unit to the second compression unit.

IPC Classes  ?

• F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
• F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
• F25B 1/10 - Compression machines, plants or systems with non-reversible cycle with multi-stage compression
• F04B 41/06 - Combinations of two or more pumps

Abstract

The present disclosure relates to an LNG regasification facility which processes LNG gasified at an LNG terminal and is configured to be dividable. A dividable LNG regasification facility comprises: a condensation part for receiving LNG in a gas state gasified at an LNG terminal and condensing the LNG into a liquid state; a first gasification transmitter for receiving first LNG condensed into a liquid state by the condensation part, pressurizing the first LNG, and then gasifying and discharging the first LNG in a gas state; at least one second gasification transmitter for receiving second LNG condensed into a liquid state by the condensation part, pressurizing the second LNG, and then gasifying and discharging the second LNG in a gas state, wherein the at least one second gasification transmitter is configured to be capable of being selectively connected to the first gasification transmitter; and an LNG passage unit for connecting the condensation part and the first gasification transmitter. In addition, the second LNG condensed into a liquid state is supplied from the condensation part to the second gasification transmitter through the first gasification transmitter.

IPC Classes  ?

• F17C 9/02 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
• F17C 13/00 - Details of vessels or of the filling or discharging of vessels
• F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures

Abstract

Provided, according to the present invention, is a column and foundation connection structure comprising a precast column (1) and a foundation (2), the column and foundation connection structure comprising: column embedded reinforcing bars (100) embedded in a column (1); foundation embedded reinforcing bars (200) each having one portion thereof embedded in a foundation (2) and the upper end portion (210) thereof exposed; and connection parts (300) for integrating the column embedded reinforcing bars (100) and the foundation embedded reinforcing bars (200), wherein the connection parts (300) are formed at an end portion of the column (1), and each comprise a lead-in space (310) in which the upper end portion (210) is inserted. According to the present invention, an effect is achieved whereby construction time may be reduced, and safety in construction may be increased.

IPC Classes  ?

• E02D 27/42 - Foundations for poles, masts, or chimneys
• E04B 1/04 - Structures consisting primarily of load-supporting, block-shaped or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
• E04B 1/21 - Connections specially adapted therefor
• E04C 3/34 - ColumnsPillarsStruts of concrete or other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings

Abstract

Provided according to the present invention is a connection structure of a precast beam (1) and a precast column (2), the connection structure comprising a coupling part (100) formed at the end of the beam (1), wherein the coupling part (100) comprises: an exposure part (110) in a stepped shape at an end of the beam (1); a first connection rebar (120), a part of which is buried in the beam (1) with the remaining part thereof exposed to the exposure part (110); and a first coupling plate (130) coupled to the first connection rebar (120) and bolt-coupled to a second coupling plate (230) exposed from a surface of the column (2). The present invention has the effect of reducing a construction time and improving construction safety.

IPC Classes  ?

• E04B 1/21 - Connections specially adapted therefor
• E04B 1/41 - Connecting devices specially adapted for embedding in concrete or masonry
• E04C 3/20 - JoistsGirders, trusses, or truss-like structures, e.g. prefabricatedLintelsTransoms of concrete or other stone-like material, e.g. with reinforcements or tensioning members

Abstract

A soil remediation facility includes a first screen apparatus including a vibratory screen, a drum mixer apparatus mixing the contaminated soil with a diluent, a saturated steam and hot water, a scrubbing apparatus including a mixing container and an impeller, a second screen apparatus including a vibratory screen. The facility further includes a floatation apparatus which adds a chemical agent for generating bubbles to the soil mixture, injects an air into the soil mixture to desorb contaminants from the soil mixture, and separates the desorbed contaminants by causing the desorbed contaminants to float. The facility further includes a hydro-cyclone apparatus which swirls substances contained in the soil mixture to sort the substances depending on a particle size and a desilter which swirls substances in the soil mixture at a higher angular velocity than an angular velocity in the hydro-cyclone apparatus to sort the substances.

IPC Classes  ?

• B09C 1/04 - Flotation
• B03D 1/02 - Froth-flotation processes
• B09C 1/02 - Extraction using liquids, e.g. washing, leaching
• B03B 5/34 - Applications of hydrocyclones
• B08B 3/04 - Cleaning involving contact with liquid
• B08B 3/10 - Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
• B03B 9/00 - General arrangement of separating plant, e.g. flow sheets
• B02C 23/20 - Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating

Abstract

A resource management system according to the present invention, in managing the resources of a water treatment plant, allows more accurate management of maintenance and maintenance cycles for each water treatment-related apparatus and allows abnormal changes in each apparatus to be sensed and managed on the basis of actual operation and malfunction histories for each water treatment-related apparatus collected from an operation apparatus (SCADA) of a water treatment plant system, the resource management system being linked to the operation apparatus. Additionally, maintenance cycle information for each apparatus is provided to a worker terminal to allow timely maintenance to be performed, and in times of repair or replacement due to apparatus malfunction, the level of importance is calculated considering the ripple-effect of each apparatus in the operation of the water treatment plant system as a weighted value, thus allowing a more systematic budgetary operation when estimating the priority of a repair or replacement.

IPC Classes  ?

• G06Q 50/26 - Government or public services
• G06Q 50/06 - Energy or water supply

Abstract

The present invention relates to a low activation cement material for a protective wall of a nuclear power plant having excellent low activation characteristics by minimizing the contents of europium (Eu) and cobalt (Co) which are main components activated by neutrons in cement, and a manufacturing method therefor. The low activation cement material of the present invention is produced by pulverizing, together with gypsum, a clinker made by mixing 79 to 81% by weight of limestone, 12 to 18% by weight of a clay raw material, 2 to 5% by weight of a ladle slag, and the remainder comprising silica, and is characterized in that the contents of Co and Eu are 7 ppm and 0.5 ppm or less, respectively.

IPC Classes  ?

• C04B 7/00 - Hydraulic cements
• C04B 7/04 - Portland cement using raw materials containing gypsum
• C04B 7/34 - Hydraulic lime cementsRoman cements
• C04B 7/14 - Cements containing slag
• C04B 7/44 - BurningMelting

Abstract

A liquid distributor for a column is introduced. The liquid distributor for a column comprises: an input part for supplying liquid; a receiving part for temporarily storing the liquid supplied from the inlet part; a drain part which has a plurality of holes for discharging the liquid; and a distribution part which connects the receiving part and the drain part so that the liquid inside the receiving part can be evenly provided to the drain part.

IPC Classes  ?

• B01D 3/16 - Fractionating columns in which vapour bubbles through liquid
• B01D 3/32 - Other features of fractionating columns
• B01D 3/42 - RegulationControl

Abstract

A gas separation system, comprising a buffer tank that stores therein a source gas and supplies the source gas; a pressurizing unit configured to receive the source gas from the buffer tank and pressurize the received source gas; a first refining unit configured to produce a first refined gas by refining the source gas pressurized by the pressurizing unit, and discharge a first waste gas; a second refining unit configured to produce a second refined gas by refining the first refined gas, and discharge a second waste gas; a third refining unit configured to produce a third refined gas by refining the first waste gas; a first collection line configured to guide the second waste gas to the buffer tank, and including a second flow rate control valve for controlling a flow rate of the second waste gas.

IPC Classes  ?

• B01D 53/047 - Pressure swing adsorption
• B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
• B01D 53/04 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
• C10L 3/10 - Working-up natural gas or synthetic natural gas

Abstract

An energy efficient membrane based desalination process, which utilizes an osmotically driven energy recovery sub-process. Energy recovery sub-process involves the extraction of water from low salinity first aqueous solution by using a high salinity content, pressurized second aqueous solution to draw the water from first aqueous solution across a semi-permeable membrane. High salinity content, pressurized second solution can be used to generate osmotic pressure on the low salinity content first solution to drive water from first solution to the second solution with respect to chemical potential differences. The process also harvests the Gibbs free energy of mixing in terms of pressure conservation in the second solution, while the volume of second solution is increasing by the drawn water from the first solution.

IPC Classes  ?

• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
• B01D 61/02 - Reverse osmosisHyperfiltration
• B01D 61/06 - Energy recovery

Abstract

The present invention relates to a desalination method based on a membrane in which an osmotic energy recovery is possible. Specifically, according to an aspect of the present invention, a desalination method based on a membrane in which an osmotic energy recovery is possible can be provided, the method including the steps of: supplying a draw solution acquired from raw water containing a salt to a first semi-permeable membrane thereby obtaining product water; supplying concentrated water discharged from the first semi-permeable membrane to a second semi-permeable membrane; and supplying a supply solution having a lower salinity than the concentrated water to the second semi-permeable membrane so that a transfer of water takes place in the second semi-permeable membrane due to a difference in salinity of the supply solution and the concentrated water and the salinity of the concentrated water decreases and the volume increases, wherein the draw solution flows into a pressure exchange unit before being supplied to the first semi-permeable membrane, and the concentrated water the volume of which has increased after passing through the second semi-permeable membrane flows into the pressure exchange unit, the pressure is then applied to the draw solution and thus the pressure of the draw solution increases.

IPC Classes  ?

• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
• B01D 61/06 - Energy recovery
• B01D 61/02 - Reverse osmosisHyperfiltration
• C02F 103/08 - Seawater, e.g. for desalination

Abstract

A steel frame structure includes brackets connected to columns to allow the columns to be connected to a girder. Each bracket includes a U-shaped plate having a bottom plate, side plates extended upwardly perpendicularly from both ends of the bottom plate, and base plates extended outwardly from the side plates, a vertical plate welded perpendicularly to the center of the bottom plate of the U-shaped plate in such a manner as to be parallel to the side plates, and a horizontal plate welded to the top end of the vertical plate in such a manner as to be parallel to the bottom plate of the U-shaped plate. The girder has a generally U-shaped section.

IPC Classes  ?

• E04B 1/24 - Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal

Abstract

Provided are partially and fully earth-anchored cable-stayed bridges, each of which uses a prestressing unit including anchor units and a prestressing member from deck segments installed at its main span such that the prestressing unit serves as a conventional windproof cable and can simultaneously introduce a tensile stress. Thereby, a magnitude of the maximum compressive stress acting on a cross section of each main-span deck segment is reduced, so that it is possible to reduce a cross-sectional area of each main-span deck segment and thus to ensure economical construction. All or part of the compressive stress generated at the main span can be offset by the tensile stress caused by the prestressing member.

IPC Classes  ?

• E01D 11/04 - Cable-stayed bridges
• E01D 21/00 - Methods or apparatus specially adapted for erecting or assembling bridges
• E01D 21/10 - Cantilevered erection

Abstract

Provided is a method for constructing an extendable cable-stayed girder bridge having a single span. In the cable-stayed girder bridge having the single span in which a girder is hung between both main towers (a main span) using a stayed cable, a construction process for converting a compression force applied to the girder to an elongation force is performed to more economically construct the cable-stayed girder bridge. According to the construction process, deck segments hung at a central portion of the main span by the stayed cable and affected by the compression force are rigidly coupled and connected to each other using key segments and jacks, and then the compression force is offset by a tensile force generated between the deck segments connected to each other while the jacks are removed.

IPC Classes  ?

• E01D 11/04 - Cable-stayed bridges
• E01D 11/00 - Suspension or cable-stayed bridges
• E01D 21/00 - Methods or apparatus specially adapted for erecting or assembling bridges

Abstract

A reverse osmosis (RO) desalination apparatus with pH control of feed water includes an RO desalination module for receiving a feed water through an inlet pipe to desalinate the received feed water into a product water discharged through a product pipe. Further, the RO desalination apparatus includes a mixer for injecting alkaline material into an end of the RO desalination module to control pH of the feed water. Furthermore, the RO desalination apparatus includes a controller for monitoring properties of a target material to be removed from the product water in real time and controlling flow rates of the feed water supplied to the RO desalination modules and the alkaline material injected by the mixer. Here, concentration of the target material to be removed from the product water is regulated within a preset regulation based on the monitored properties of the target material to be removed.

IPC Classes  ?

• B01D 61/12 - Controlling or regulating
• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
• B01D 65/08 - Prevention of membrane fouling or of concentration polarisation
• B01D 65/10 - Testing of membranes or membrane apparatusDetecting or repairing leaks

Abstract

A two-pass reverse osmosis (RO) desalination apparatus includes a first RO module for receiving feed water through an inlet pipe to desalinate the feed water; and a second RO module for receiving primarily treated water to desalinate the primarily treated water. Further, the two-pass RO desalination apparatus includes a bypass pipe through which bypass water branched from the first RO module or the inlet pipe bypasses such that the bypass water may not be desalinated in the first or the second RO module. Furthermore, the two-pass RO desalination apparatus includes a product water pipe through which a product water in which the secondarily treated water is blended with the bypass water passes; and a controller for controlling the flow rate of the water passing through the first or second RO module, or the pipes.

IPC Classes  ?

• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
• B01D 61/02 - Reverse osmosisHyperfiltration
• B01D 61/58 - Multistep processes
• B01D 61/12 - Controlling or regulating

Abstract

According to the invention, a deck segment installed at a main span of a cable-stayed bridge is provided with a tensioning means including a tensioning device and a tensioning member functioning as a typical wind-resistant cable and providing tensile stress, whereby the maximum compressive stress applied to a cross-section of the deck segment is decreased, and thus the cross-section of the deck segment can be decreased. Accordingly, the cable-stayed bridge is economically constructed, and either a portion or the entirety of the compressive stress applied to the main span is counterbalanced by the tensile stress from the tensioning member.

IPC Classes  ?

• E01D 11/04 - Cable-stayed bridges
• E01D 21/00 - Methods or apparatus specially adapted for erecting or assembling bridges

Abstract

Disclosed is a surface plasmon resonance (SPR) gas sensor chip manufacturing method of depositing a metal layer on a substrate and depositing a thin film sensing layer on the metal layer. The method includes depositing self-assembled monolayers (SAMs) on the metal layer, depositing a radical initiator for depositing a molecularly imprinted polymer (MIP) on the SAMs, and mixing a template monomer, a functional monomer and a cross linker and optically reacting and removing the template monomer through the irradiation of ultraviolet (UV) light based on an absorption wavelength of the radical initiator, thereby forming an imprinted space in the thin film sensing layer.

IPC Classes  ?

• G01N 27/12 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluidInvestigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon reaction with a fluid
• G01N 21/27 - ColourSpectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
• H01L 21/027 - Making masks on semiconductor bodies for further photolithographic processing, not provided for in group or

Abstract

The present invention relates to a food waste packaging apparatus for an automatic waste collection system, and more particularly, to a food waste packaging apparatus for an automatic waste collection system which automatically performs, when food waste is injected into a food waste inlet port, the processes of putting the food waste into a packaging bag, sealing the packaging bag, and discharging the packaging bag. The food waste packaging apparatus for an automatic waste collection system according to the present invention comprises: a loading unit arranged below the food waste inlet port such that a plurality of packaging bags are laid in the horizontal direction and loaded into a layer on the loading unit; supply means for sucking the top packaging bag from among the packaging bags loaded on the loading unit, placing, by means of rotation, the sucked top packaging bag in the vertical direction below a hopper of the waste inlet port, and opening the upper portion of the packaging bag to ready the packaging bag for receiving food waste therein; sealing means arranged at the upper portion of the waiting packaging bag to heat seal the upper portion of the packaging bag when food waste is received in the packaging bag; and discharging means for supporting the bottom of the packaging bag and discharging, by means of rotation, the packaging bag to a storage chute arranged below the discharging means after the completion of the sealing of the packaging bag.

IPC Classes  ?

• B65B 43/18 - Feeding individual bags or carton blanks from piles or magazines by grippers by suction-operated grippers
• B65B 41/06 - Feeding sheets or wrapper blanks by grippers by suction-operated grippers
• B65B 51/10 - Applying or generating heat or pressure or combinations thereof
• B65F 5/00 - Gathering or removal of refuse otherwise than by receptacles or vehicles

Abstract

The present invention relates to a top-down construction method which directly withstands earth pressure by means of an underground part (beam, slab) of a building while excavating, to construct the underground part of the building. More particularly, the present invention relates to a method for constructing the underground part of the building in a top-down method and continuously constructing an underground retaining wall in a bottom-up method using a branch-type steel frame with channels. The top-down construction method according to the present invention is technically characterized in that the branch-type steel frame with channels assembled thereto is installed between an earth-retaining wall and a slab in the construction of the underground part of the building so as to effectively transfer earth pressure, and the underground retaining wall is continuously constructed in a bottom-up method after ensuring the space for construction of the underground retaining wall.

IPC Classes  ?

• E02D 29/045 - Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location lineMethods of making them
• E21D 9/04 - Driving tunnels or galleries through loose materialsApparatus therefor not otherwise provided for

Abstract

The present invention is provided to construct a geogrid-attached structure to prevent bulging failure in a process of forming a uniform stone column to provide an economical reinforcement construction because the geogrid-attached structure for preventing bulging failure is simple and a reinforcement work and drawing-out work is easy and efficient and to surely prevent bulging failure and shear failure of the stone column by reinforcing only the shallow layer of 2.5D-5D under an upper end of the stone column with a circular geogrid having a high rigidity, easily inducing the geogrid into a ground and placing the geogrid in a predetermined position. The present invention relates to a geogrid-attached structure for preventing bulging failure of a stone column wherein a circular geogrid is contacted to an outer circumference of a round hollow pipe, a fixing portion of a hook shape is formed in a lower end of the circular geogrid towards an inner circumference of the round hollow pipe, the diameter of the round hollow pipe is larger than that of the auger casing, and the length of the round hollow pipe is 2.5D-5D when the diameter of the stone column is D.

IPC Classes  ?

• E02D 3/08 - Improving by compacting by inserting stones or lost bodies, e.g. compaction piles

Abstract

Provided is a cleaner for a duct for cleaning an inner wall of the duct. The cleaner includes: a head entered into the duct, and including one or more cleaning injection holes through which a cleaning source for cleaning an inner wall of the duct is injected toward the inner wall of the duct and one or more propulsion injection holes through which a propulsion source for propulsion is injected into the inner wall of the duct; a supply unit for supplying the cleaning source and the propulsion source to the head; and a head movement unit for rotating and moving the head. Therefore, the cleaner can thoroughly clean the entire inner portion of the duct and reduce costs for equipments for cleaning the duct and a problem in safety management for the equipments.

IPC Classes  ?

• B08B 9/04 - Cleaning the internal surfacesRemoval of blockages using cleaning devices introduced into and moved along the pipes