Abstract: The invention relates to a refrigerator unit and/or freezer unit having at least one chilled inner space for receiving refrigerated goods or frozen goods, wherein the refrigerator unit and/or freezer unit is designed with at least one lighting means and with at least one receiver for holding one or more information labels, in particular price labels, preferably related to the refrigerated good or frozen good. In accordance with the invention, the lighting means are arranged relative to the receiver such that they illuminate the information label located in the receiver or such that the refrigerator unit and/or freezer unit is designed with at least one display on which at least on piece of information, preferably related to the refrigerated good or frozen good, is reproduced or can be reproduced, with the lighting means and the receiver or the display forming integral components of the refrigerator unit and/or freezer unit.

Abstract: An outdoor unit of an air-conditioner and two-pipe and three-pipe air-conditioning systems having the same are provided. The outdoor unit includes a compressor defining an outlet and an inlet; a first four-way valve defining a first valve communicated with the outlet, second and third ports communicated with the inlet; a second four-way valve defining second and third ports communicated with the inlet; an outdoor heat exchanger defining a first refrigerant valve Communicated with the fourth port of the first four-way valve; a first gas pipe defining a first end connected with the second and third ports of the first and second four-way valves and, the inlet; a second gas pipe defining a first end connected with the fourth port of the second four-way valve; a third gas pipe defining a first end connected with the outlet and a second end connected with the first port of the second four-way valve.

Abstract: A thermal management system includes a case; an insulation material provided within the case, the insulation material defining an interior volume of the insulation material; a liner arranged in the interior volume, the liner having an inner surface that extends toward a center of the case; an outer container of phase change material provided in the liner, the outer container comprising a plurality of outer panels containing a first phase change material, the plurality of outer panels comprising a bottom outer panel, a top outer panel, and side outer panels; and an inner container of phase change material provided in the outer container, the inner container comprising a plurality of inner panels containing a second phase change material; wherein an outer surface of each of the side outer panels is parallel with the inner surface of the liner.

Abstract: A magnetic bearing system (120) includes a first active magnetic bearing (AMB) (202) including a first group of electromagnetic actuators (306, 310, 314, 318) to support a shaft and a second AMB (204) including a second group of electromagnetic actuators (308, 312, 316, 320) to support the shaft. A controller for the two AMB's includes a multi-phase topology (400) with a plurality of active current switches for controlling the electromagnetic actuators (306-320) of each of the first AMB (202) and the second AMB (204). Each electromagnetic actuator (306, 310, 314, 318) of the first AMB (202) is electrically coupled to an electromagnetic actuator (308, 312, 316, 320) of the second AMB (204).

Abstract: A plate fin includes a slit structure formed by cutting and raising a portion of the plate fin to form an opening facing a flow direction of a fluid and a waffle structure formed by bending a portion of the plate fin to form a protrusion having an angle-shaped cross section which protrudes in a stack direction and having a ridge substantially perpendicular to the air flow direction, and the waffle structure is disposed on the upstream side on the plate fins with respect to the slit structure and a slant length L1 on the upstream side of the waffle structure is smaller than a slant length L2 on the downstream side of the waffle structure.

Abstract: Condensation occurs on an indoor fan. In an air conditioner of the present invention, an indoor heat exchanger includes an auxiliary heat exchanger 20 and a main heat exchanger 21 disposed leeward from the auxiliary heat exchanger 20. The auxiliary heat exchanger 20 is disposed forward of a front heat exchanger 21a of the main heat exchanger 21. In an operation in a predetermined dehumidification operation mode, a liquid refrigerant supplied to the auxiliary heat exchanger 20 all evaporates midway in the auxiliary heat exchanger 20. Then, the refrigerant having flowed through a superheat region of the auxiliary heat exchanger 20 flows through a portion of the front heat exchanger 21a which portion is located leeward from an evaporation region of the auxiliary heat exchanger 20.

Abstract: A device (HS) is provided with a refrigeration cycle unit (R) and a liquid hydrogen generation unit (P) for generating liquid hydrogen by cooling high-pressure raw material hydrogen by means of the refrigeration cycle unit (R) and by adiabatically expanding said raw material hydrogen by means of a Joule-Thomson valve (12). A first and second heat exchanger (E1, E2) are disposed along the refrigeration cycle unit (R) and the liquid hydrogen generation unit (P). The device (HS) is provided with a mechanism for generating liquid hydrogen by re-liquefying the boil-off gas generated in a liquid hydrogen storage tank. The boil-off gas is introduced into a hydrogen circulation path (1) at a section at which circulating hydrogen having an extremely low temperature flows, and the excessive circulating hydrogen generated therefrom is discharged to a raw material hydrogen path (11) from a section at which the circulating hydrogen is at room temperature.

Abstract: A distillation apparatus of the present invention includes: a distillation column group in which a plurality of distillation columns (D1, D2, D3), which are respectively equipped with a reboiler (R1, R2, R3), is connected in the form of a distillation cascade; feed-gas condensers (C?2, C?3) which liquefy feed gases from respective former distillation columns (D1, D2) and feed said liquefied feed gases to respective latter distillation columns (D2, D3); gas-feeding lines (QA2, QA3) which connect the respective former distillation columns (D1, D2) and the respective feed-gas condensers (C?2, C?3); and liquid-feeding lines (QG2, QG3) which connect the respective feed-gas condensers (C?2, C?3) and the respective latter distillation columns (D2, D3).

Abstract: An article of manufacture for use during the practice of yoga or meditation is provided. The apparatus is a triangular-based pyramid having at least one gemstone, chakra stone or crystal affixed to or embedded at the apex of the pyramid. Additional stones can be affixed to or embedded in the panels forming the sides of the pyramid structure. The article can have additional gemstones, chakra stones or crystals embedded in or affixed to a side panel of the article and can be suspended from an overhead structure or hung from the ceiling employing a suspending rope, cable or chain.

Abstract: This invention relates to lead free and cadmium free copper-containing glass frits that can be used as pigments to color other glass frits or to impart color to solid substrates such as glass, ceramic or metals, or to impart color to a thermoplastic mass. The compositions comprise silica, alkali metal oxides, alkaline earth metal oxides, tin oxide and copper oxide. The resulting compositions can be used to decorate and protect automotive, beverage, architectural, pharmaceutical and other glass substrates, generally imparting a red color.

Abstract: The invention relates to a method for producing glass on a metal melt and can be used for improving the quality of float glass. The invention makes it possible to increase the quality of the lower surface of the float glass by removing micro-defects. To do this, a glass strip is raised above draw-in shafts of a slag chamber and kept in a raised position during transport in the slag chamber area by reducing the atmospheric pressure above the glass strip in relation to the pressure acting on the glass strip from below.

Abstract: A method for producing a glass strip is provided. The method includes providing a glass preform with flat cross section, wherein the width of the cross section is at least five times greater than its thickness, wherein the cross section tapers into the edge regions in such a way that the thickness of the glass preform relative to its side edges amounts to at most two-thirds of the maximum thickness of a plate-shaped center region of the glass preform; heating the glass preform within a deformation zone, so that the glass found in the deformation zone softens; and applying a tensile force onto the glass preform in the direction perpendicular to the cross section, so that the glass preform is drawn in length in the deformation zone.

Abstract: Provided is an optical fiber drawing apparatus and optical fiber drawing method using the same. The apparatus may include a crucible accommodating core and clad sources and having a bottom hole through which the core and clad sources pass, and a plug disposed under the crucible, the plug passing through the bottom hole. The plug may include a bottom plug disposed under the crucible to close the bottom hole, and a first upper plug disposed on the bottom plug to pass through the bottom hole.

Abstract: Apparatus, systems and methods for monitoring and controlling the amount of moisture introduced into the forming hood area in the manufacture of mineral fiber insulation products. Moisture from coolant liquids, binder dispersions and binder diluents are all introduced deliberately into a forming hood; ambient moisture and water from combustion are additional sources. A series of global variable control valves, one for each fluid system; as well as individual variable control valves for each fiberizing unit are provided with associated meters. Sensors monitor fibrous pack conditions and ambient conditions and provide inputs to the valve control system. A specific 3-ring liquid dispensing system is also disclosed.

Abstract: A method of manufacturing a polyester fabric with inherent color, the method including: providing a polyester fiber with inherent color; spinning polyester yarn from the fiber with inherent color; knitting the colored polyester yarn into knitted fabric which can combine with other yarn according to a requirement; wishing the colored polyester fabric and heat-setting the fabrics with add-on functional finish to the fabric. The providing of polyester fiber with inherent color may include: cleaning and drying polyester bottles; recycling polyester chips from clean bottles; mixing chips with pigment evenly and melting the chips with pigment; extruding the filament fiber with color; and drawing and cutting filament fiber into staple fiber. Further aspects of the present invention are directed to a colored polyester fabric and a method of manufacturing an article of clothing, using a colored polyester fabric produced using the above-described method.

Abstract: A balancer of a washing machine including a balancer housing mounted to a front surface of a drum and having an annular channel therein, a plurality of masses movably disposed along the channel, at least one magnet coupled to the balancer housing so as to restrict the masses from moving along the channel when a revolution per minute value of the drum is within a specific revolution per minute range, and at least one guide groove which is formed on an inner surface of the balancer housing and guides movement of the plural masses when the drum rotates.

Abstract: A manacle configured to detain or arrest a person by placing pressure on a spring-loaded handle which closes a clamp. The clamp dynamically adjusts to the wrist size of a target individual or subject. When the clamp is open, the first end and the second end are systematically disposed on either side. When the clamp is closed around the wrist of an individual, they provide a maximum gripping force capable of detaining the individual from movement. Furthermore, the ratchet portion of the tool allows for the device to close around a wrist in an adjustable fashion, meaning the tool will automatically adjust to the circumference of an individual's wrist upon deployment.

Abstract: In one embodiment, a lock mechanism includes a control element arranged for rotation about an axis between an active position and an inactive position. The control element includes a control head having one or more axially extending projection(s). The lock mechanism further includes a lock element that is axially aligned with the control element and includes a lock element head. The lock element head has one or more axially extending projection(s). The projection(s) of the control head and the projection(s) of the lock element head are arranged such that in the active position, the lock element and control element are held apart by the projections, and such that in the inactive position, the projections can mesh together to permit axial movement of the lock element relative to the control element.

Abstract: The current disclosure discloses certain embodiments of a key holder assembly. A key holder assembly may include one or more key holders of different shapes or sizes attached to one another. A secure locking mechanism for the carabineer was invented to prevent it from accidentally opening. Each key holder assembly forms a tree structure through the fastening mechanisms and the attachment mechanism of key holders. The tree structure can be dynamically configured to reflect the relationship of the keys. Keys are attached to the tree structure which facilitates the organization of the keys. The current invention helps owners or managers of one or more residential or commercial properties to better organize keys to their properties by mapping the relationship of the keys to a tree structure and storing the keys accordingly.

Abstract: The invention relates to a bioreactor for methanizing biomass, a biogas plant having a plurality of such bioreactors, and a method for operating such a bioreactor. Because the elongated reactor vessel includes both a loading gate and an unloading gate that are arranged at opposite ends of the elongated reactor vessel, it is possible to remove consumed biomass, which is harmless in terms of epidemiologic hygiene and plant hygiene due to thermophilic process control during the fermentation, from the reactor vessel through the unloading gate and to transfer this consumed biomass directly to the composting process. The bioreactor thus has a “clean” unloading gate and an “unclean” loading gate.

Abstract: The invention provides a method for enhancing solid-liquid separation by using a low molecular weight alcohol, such as isopropanol. The methods can be used in a variety of settings to facilitate solid-liquid separation, such as that in anaerobic digestion and treatment of tailing pond sludge.

Abstract: This invention concerns an active reconfigurable stretch forming tool, and in another aspect the invention is a method of stretch forming. The tool comprises an array of extensible shape forming elements which are driven in extension to produce the same force per unit area across a workpiece during shape forming. An array of limit switches are located in front of the array of shape forming elements, such that each shape forming element is driven in extension towards a respective limit switch during shape forming. In use, each limit switch is activated by the workpiece as it is shaped and each switch, upon activation, prevents further extension of the respective driven element. The tool and method are useful in the forming of three dimensional shapes in solid sheet metal or mesh, to produce panels for reflector antennas.

Abstract: An apparatus for shot peening blade mounting areas on a disc of a rotor includes a peening nozzle unit which streams shot peening media along a longitudinal axis. The unit includes a nozzle outlet which extends at least partially in a circumferential direction of the unit, and a deflection arrangement with a deflection area for the media. The deflection area is at least partially cone or half-hyperboloid shaped, such that the media passes the nozzle outlet over an angle range in circumferential direction after being deflected by the deflection arrangement. A method for shot peening the blade mounting areas positions the unit in a slot profile of a blade mounting area and guides the unit along the contour of the slot profile with the nozzle outlet facing the contour of the slot profile to approximately uniformly peen the contour of the slot profile.

Abstract: A corrugating unit is used which presses a first corrugation into the pipe which is moved in its longitudinal direction through the corrugating device. The spacing between the wave peaks is subsequently reduced, for obtaining a second corrugation, by a clamping unit composed of two separately arranged clamping devices resting against the pipe. The pipe provided with a first corrugation is pressed continuously by the first clamping device against a fixed point realized by the second clamping device, which, in the position of operation, is arranged, in relation to the clamping device, in axial direction. behind the first clamping device. Both clamping devices are removed cyclically from the pipe and are moved back into a new position in the opposite direction of the direction of movement of the pipe and, in this new position, again rest in the two different areas against the pipe.

Abstract: When the column-shaped raw material 10 is subjected to an upsetting process, a simultaneous forward-backward extrusion process, a punching process, a rolling process and a finishing process in order, to obtain an outer ring 3 that constitutes a back-to back double-row angular ball bearing 3, in the simultaneous forward-backward extrusion process, using a floating die 31 having a bottom plate section 35 with a circular convex section 34 and a punch 33 having a punch side convex section 37 provided on an distal end thereof, the section closer to the center in the radial direction of the first intermediate material 11a is compressed in the axial direction, causing the metal material of the first intermediate material 11a to move outward in the radial direction and move approximately uniformly in both extrusion (forward and backward) direction of the punch 33, whereby the middle metal material 29 having a high degree of cleanliness of the column-shaped raw material 10 is exposed over the entire portion that will

Abstract: A rebar processing station taking the form of an hydraulically powered rebar cutting, bending, and shaping table is disclosed. A rebar cutting assembly comprises a pair of slotted, hardened plates or dies that cooperatively function to shear a rebar. A rebar grasping, bending, and shaping assembly comprises rebar grasping and clamping means, a shaping plate or die, and a movable former, such as a roller. For convenient transport, the table may be provided with appropriate features allowing cooperative engagement with appropriate attachments and/or implements associated with on-site construction equipment.

Abstract: Systems, devices, and methods are described for extruding a material. In certain embodiments, an extrusion press system includes an extrusion die supported by a first support structure and a centering insert supported by a second support structure, wherein the centering insert guides a material to be extruded into the extrusion die. A positive stop may be coupled to the first support structure and extend towards the second support structure, wherein the positive stop defines a travel distance between the first support structure and the second support structure. In certain embodiments, movement of the second support structure towards the first support structure is limited by the positive stop to the travel distance. In certain embodiments, the positive stop is configured to adjust the travel distance.

Abstract: A computer numerical control (cnc) bending machine used to bend and then cut a specific programmed profile from a long length of cable comprising: a base, a carriage, a bend head and a saw; the carriage includes a spindle to rotate the cable, the carriage is also able to transport the cable in a linear fashion; the bend head comprises a clamp and a wiper roller and a bend die; after a last bend is formed, the clamp and wiper roller are retracted away from the bend die; the carriage is then able to then transport the cable forward away from the saw, the spindle is then able to rotate the cable out of the plane of the bend, the carriage is then able to transport the cable back toward the saw; the saw is then able to sever the cable such that a last leg length adjacent to the last bend which is shorter than the fixed distance between the saw and the bend die.

Abstract: An actuator for a redraw sleeve that operates independently of the ram drive mechanism is provided. The actuator utilizes an eccentric journal coupled to a drive shaft of a servomotor. The servomotor is structured to provide its output shaft with a variable rotation speed so as to accommodate the need for the redraw sleeve to be in selected locations at specific times. Further, the redraw sleeve includes a collapsing redraw cylinder to allow the redraw sleeve to dwell in a forward position.

Abstract: A locking collar assembly for metal forming dies includes a disc-shaped locking collar with a cylindrical outer surface closely received in a collar bore in one face of a first die member. A circular recess in the outer face of the locking collar has an internal retainer ring groove. A counterbored shaped fastener hole extends through the collar and a part of the recess, and has shank, head and shoulder portions. A socket head cap screw is inserted in the fastener hole with a threaded end anchored in a threaded end aperture in one of the guide pins, with the head seated on the shoulder of the fastener hole. A retainer ring is mounted in the collar ring groove and overlies the cap screw head to positively prevent the cap screw from unintentionally unfastening from the guide pin.

Abstract: A method and apparatus for background cancellation for electronic noses to make automated aroma analysis practical in complex field environments. The system and methods compensate for background contaminants while automatically emphasizing all constituents, be they chemically identified or not, which represent information content in the sample being tested.

Abstract: A method for calibrating a multiple flow conduit flow meter (200) is provided according to an embodiment of the invention. The multiple flow conduit flow meter (200) includes a first flow conduit (201) conducting a first flow stream and a pair of first pickoff sensors (215, 215?) affixed to the first flow conduit (201). The multiple flow conduit flow meter (200) further includes at least one additional flow conduit (202) conducting at least one additional flow stream and at least one pair of additional pickoff sensors (216, 216?) affixed to the at least one additional flow conduit (202).

Abstract: An interference determination method for machine tools which determines whether or not there will be interference between elements that move relative to each other, the method including: a setting procedure for setting a machine tool model obtained by combining the shape model of each of the elements including a work model corresponding to the work; a measurement procedure for measuring the position of the work attached to the work attachment part; a correction procedure for acquiring, at a predetermined timing, the position of the work measured in the measurement procedure, and correcting the machine tool model set in the setting procedure; and a determination procedure for determining whether or not there will be interference between the elements on the basis of the machine tool model corrected in the correction procedure.

Abstract: A method and a device determine tribological measured values of samples with a rheometer. Wherein the measuring parts of the rheometer are replaced by samples and the surfaces of the samples are moved into frictional contact relative to each other. Accordingly, it is provided that all parts of the rheometer holding the samples in frictional connection and frictional contact or forming the rheometer power circuit, including the spring unit pressing the samples against each other, are regarded as an oscillatory circuit. The oscillation properties of the spring unit are regarded as relevant to the oscillation properties of the oscillatory circuit, and that the oscillation properties of the spring unit are adjusted taking into consideration the resonance oscillations or effects produced by changing, different measurement conditions expected with the respective measurement.

Abstract: A system for measuring golf swing parameter data on impact of a club face of a user's golf club with a target surface includes an absorber bag having a front facing surface with target image thereon for receiving an impact of the user's club face therewith, an anchor frame to which the bag is attached thereto, and an electronics module removably attachable to the anchor frame. The system further includes a plurality of shock mounts positioned between the absorber bag and anchor frame, and at least one accelerometer in electrical communication with the electronics module and arranged on a rear surface of the bag that measures acceleration upon impact of the club face with the absorber bag, providing a signal that is converted by the electronics module into golf swing parameter data for display to the user.

Abstract: The invention relates to a test device for simulating motor vehicle crashes, with a slide arrangement which is arranged displaceably along a rail arrangement, a test rig which is arranged on the slide arrangement and on which at least one motor vehicle component to be tested is arranged or is mountable, and with an acceleration unit via which a force is transmittable to the slide arrangement in order to accelerate the latter. With the aim of providing a test device with which the test reproducibility and the test simulation accuracy can be improved and the number of required iteration steps reduced, the test device has at least one sensor element for continuously detecting motion measured values of the slide arrangement.

Abstract: The present invention relates to an apparatus and method of preparing a reference solution of a gaseous substance necessary for calibration of various measuring instruments used in measurement of the gaseous substance, such as radon (Rn-220) or a volatile substance, contained in seawater, subsurface water, surface water or the like. An apparatus of preparing a reference solution according to the present invention includes a gas component detector having two ports and configured to measure a concentration of a predetermined gaseous substance; a gas vessel having two ports and configured to accommodate the predetermined gaseous substance; a reference solution preparation vessel having two ports and configured to accommodate a predetermined liquid substance; pipe lines connecting the ports of the gas component detector, the gas vessel and the reference solution preparation vessel; and valves installed on the pipe lines.

Abstract: Active compensation designs to offset the impact of gas diffusion sources and sinks in a photosynthesis and transpiration measurement system are disclosed. A sensor head for use in a gas exchange analysis system includes an active, piezoelectric flow splitting device for splitting a flow between a sample chamber and bypass pathway. The active flow splitting device is controlled by feedback from a downstream flow meter. A continuous measurement system for rapidly and accurately surveying large numbers of samples is described.

Abstract: A load drive apparatus (1) includes a pulse drive circuit (51) which applies a pulse voltage PS to a resistive load (4); current detection means (S14) for detecting the current flowing to the resistive load (4) through the pulse drive circuit (51); level detection means (S1, S7) for determining whether an output terminal voltage VD of the pulse drive circuit (51) is a high potential level or a low potential level; anomaly detection means (S8, S9, S18) for detecting a wire breakage anomaly, a short-to-power anomaly, and a short-to-ground anomaly based on the level of the output terminal voltage VD detected by the level detection means (S1, S7) and the current detected by the current detection means (S14), when the pulse drive circuit 51 is turned on and off.

Abstract: The electro-enhanced solid-phase microextraction (EE-SPME) method involves extraction that is performed with an SPME fiber, preferably made of polydimethylsiloxane (PDMS), in the presence of an applied electric potential for a predetermined period of time. Polar analytes are extracted onto the fiber, which is the stationary phase. The solid-phase microextraction fiber is then inserted into an injection port of a gas chromatograph coupled with a mass spectrometer. The polar analytes are desorbed in the injection port, and are analyzed by GC-MS to detect and quantify the individual components.

Abstract: A device for extraction of at least one analyte contained in a liquid sample, including an extraction and desorption zone of the analyte with a stationary phase as the extraction zone, a liquid supply inlet to the extraction zone, a gas supply inlet to the extraction zone, an evacuation outlet from the extraction zone that will be connected to either a collection tank, or a device for analysis of the analytes, a valve configured to connect the extraction zone to one of the supply inlets, a valve configured to connect the extraction zone to one of the evacuation outlets, a mechanism heating the valve zone such that when the extraction zone is supplied with liquid, evacuation from the extraction zone takes place to the collection tank.

Abstract: An improved temperature sensor assembly (15) comprising a temperature sensing probe (16) having a temperature sensing portion (18), a terminal portion (21), and an intermediate portion (20) between the temperature sensing portion and the terminal portion; a mounting element (28) in sliding engagement along a first axis (x-x) with the intermediate portion of the temperature sensing probe such that the temperature sensing probe is movable linearly relative to the mounting element in an axial direction; the mounting element configured to attach to an open tip thermowell (100) such that the temperature sensing portion of the probe is exposed to a process environment (104); the temperature sensing probe comprising a stop (19) configured to bear against a seat (108) in the thermowell; and a spring element (24) arranged between the stop and the mounting element and configured to bias the stop and the mounting element linearly away from each other in the axial direction.

Abstract: The Portable Ultrafine Particle Sizer (PUPS) invention is provided. The PUPS is an instrument which can measure particle number concentration for particle sizes under 200 nanometers in-situ. The PUPS is a compact design for quick mounting on vehicles. Size discrimination is accomplished using a compact reverse Differential Mobility Analyzer (rDMA). Particle charging is accomplished using corona ionization. Concentration measurements are completed using a unique flexible printed circuit board electrode which can be removed for cleaning, disposal or chemical analysis of collected particles at the end of its in situ measurement life.

Abstract: A hygrometer includes a heat transfer section extending from a measurement space toward an outside space separated from the measurement space, a heat release amount control unit that causes heat to be released to the outside space from the heat transfer section such that an amount of heat released to the outside space is made constant, and a computation device that calculates a humidity of the measurement space. The computation device calculates the humidity from a heat transfer section temperature and a measurement space temperature using a relational expression based on a heat balance in the heat transfer section when condensation is occurring in a portion, of the heat transfer section, located within the measurement space in a state where the amount of heat released to the outside space from the heat transfer section is made constant by the heat release amount control unit.

Abstract: The present invention is aimed to improve the conventional plane-opened hydrodynamic testing device, one or more than one reverse pumping return units (201) are installed with a parallel or substantially parallel manner at the periphery of an active fluid pumping unit (101), so a part of the fluid discharged from the outlet port of the active fluid pumping unit (101) is enabled to be sucked and reversely pumped for being returned to an adjacent space defined at the fluid inlet port of the active fluid pumping unit (101), thereby structuring a semi-opened hydrodynamic testing device having reverse pumping return unit.

Abstract: The present invention relates to an apparatus and method of measuring effective porosity of various media such as rock or soil using radon that is an inert gas. An apparatus of measuring porosity according to the present invention includes: a gas component detector having two ports and configured to measure a concentration of a predetermined gas; a gas vessel having two ports and configured to accommodate the predetermined gas; a medium vessel having two ports and configured to accommodate a medium, of which the porosity is desirous to be measured; pipe lines connecting the ports of the gas component detector, the gas vessel and the medium vessel; and valves installed on the pipe lines.

Abstract: A hose leakage detection system includes a ring configured to be disposed within a hose. The ring has a lateral slot formed in an outer surface, defining a first slot wall and a second slot wall. A sensor is disposed on one of the first slot wall and the second slot wall and a power source is electrically connected to the leakage detection system.

Abstract: A gas monitoring system for continuously detecting leakage of at least one gas and being operable in an extreme climate condition, the system involving a processor; at least one emergency shutdown valve responsive to a set of instructions from the processor; and a user interface in communication with the processor. The system further involves a weather-proof enclosure for housing system components. The weather-proof enclosure is adapted to operate at a temperature range of ambient temperature to a below-freezing temperature, wherein the at least one emergency shutdown valve comprises at least one latch valve.

Abstract: The present application pertains to a method of detecting and locating leaks in pipes having a secondary containment vessel. More particularly, the present application pertains to a method of leak detection whereby a tracer gas is introduced into the secondary containment vessel and detected in the primary pipe to determine the location of a leak in a primary pipe.

Abstract: The present invention relates to a system and method for monitoring lubricant of an engine. The system for monitoring lubricant of an engine comprises: a lubricant sensor, which measures lubricant quantity of the engine; a data acquisition unit, which collects the lubricant quantity of the engine from the lubricant sensor at a fixed time interval; and a message generation unit, which generates lubricant quantity monitoring messages according to the lubricant quantity of the engine collected by the data acquisition unit.