Abstract: A method for preparing a polyolefin resin powder has the steps of a) heat dissolving a polyolefin resin in an organic solvent having a solubility parameter less than or equal to the solubility parameter of the polyolefin resin to obtain a polyolefin resin solution; b) cooling the polyolefin resin solution to precipitate a solid, thereby obtaining a solid-liquid mixture; c) optionally adding an adjuvant to the solid-liquid mixture and mixing; and d) conducting solid-liquid separation and drying to obtain a polyolefin resin powder suitable for selective laser sintering. The difference between the solubility parameters of the organic solvent and of the polyolefin resin is within 0-20% of the solubility parameter of the polyolefin resin. The polyolefin resin powder obtained according to this method has good antioxidant property, good powder flowability, moderate size, smooth surface, suitable bulk density, and suitable dispersibility and particle size distribution.

Abstract: Provided are system and method thereof for desulfurization and dedusting of flue gas from a coke oven. The system for desulfurization and dedusting of flue gas from a coke oven includes a heat exchanger, a desulfurization reaction unit, a dedusting unit, and a blower; the heat exchanger includes a raw flue gas duct and a clean flue gas duct; the raw flue gas duct, the desulfurization reaction unit, and the dedusting unit are coupled in sequence, a clean flue gas outlet of the dedusting unit communicates with an inlet of the clean flue gas duct, and an outlet of the clean flue gas duct is coupled to the blower. The raw flue gas is heated in the heat exchanger by using temperature difference between clean flue gas and the raw flue gas, and then the raw flue gas is delivered into the desulfurization reaction unit for a desulfurization reaction.

Abstract: A cushioning device and a packaging assembly for a base station antenna includes an inner cushioning member and an outer cushioning member. Each cushioning member comprises an inflated airbag. The inner cushioning member is configured to abut an end cover of the housing of the base station antenna and to surround at least one protruding member that is provided on the end cover within a cavity defined by the inner cushioning member. The outer cushioning member is configured to cover both ends of the base station antenna.

Abstract: Provided are system and method thereof for desulfurization and dedusting of flue gas from a coke oven. The system for desulfurization and dedusting of flue gas from a coke oven includes a heat exchanger, a desulfurization reaction unit, a dedusting unit, and a blower; the heat exchanger includes a raw flue gas duct and a clean flue gas duct; the raw flue gas duct, the desulfurization reaction unit, and the dedusting unit are coupled in sequence, a clean flue gas outlet of the dedusting unit communicates with an inlet of the clean flue gas duct, and an outlet of the clean flue gas duct is coupled to the blower. The raw flue gas is heated in the heat exchanger by using temperature difference between clean flue gas and the raw flue gas, and then the raw flue gas is delivered into the desulfurization reaction unit for a desulfurization reaction.

Abstract: The present disclosure provides an effective stress cell for direct measurement of effective stress in saturated soil. The effective stress cell comprises a sensing diaphragm, a porous diaphragm, a connector and a strain sensor. The porous diaphragm allows pore-water to enter the interior space between the sensing diaphragm and the porous diaphragm to provide complete balance of pore-water pressures in the front and back of the sensing diaphragm. Thus, the effective stress cell can directly and accurately measure the effective stress in saturated soil using only one diaphragm at one location without measuring pore-water pressure.

Abstract: The present disclosure relates to a pharmaceutical composition or food composition including Evans blue for prevention or treatment of chronic pain diseases. The administration of Evans blue according to the present disclosure can effectively reduce chronic pain, such as neuropathic pain. In particular, Evans blue targets mainly VNUT protein of dorsal root ganglia, which plays an important role in the secretion of ATP from the distal end of the afferent nerve and can relieve the pain using drugs continuously without side effects so that it can be efficiently used as an analgesic for various kinds of pain caused by chronic pain diseases.

Abstract: The present disclosure relates to a pharmaceutical composition or food composition including Evans blue for prevention or treatment of chronic pain diseases. The administration of Evans blue according to the present disclosure can effectively reduce chronic pain, such as neuropathic pain. In particular, Evans blue targets mainly VNUT protein of dorsal root ganglia, which plays an important role in the secretion of ATP from the distal end of the afferent nerve and can relieve the pain using drugs continuously without side effects so that it can be efficiently used as an analgesic for various kinds of pain caused by chronic pain diseases.

Abstract: An electrical connector assembly includes a first connector and a second connector inserted to a front of the first connector. The second connector has a casing. A latch portion is protrudingly provided above the casing. The first connector includes a shell. A locking arm is pivoted to the shell by a pivoting portion, and is provided with a buckling portion for buckling the latch portion. The locking arm includes at least one first position limiting portion and a second position limiting portion in front of the buckling portion. In a separation process of the first and second connectors, the locking arm is actuated, the buckling portion is detached from the latch portion and moves backward, and the latch portion firstly stops the first position limiting portion. After the latch portion is detached from the first position limiting portion, the latch portion stops the second position limiting portion from moving backward.

Abstract: An electrical connector assembly includes a first connector and a second connector inserted to a front of the first connector. The second connector has a casing. A latch portion is protrudingly provided above the casing. The first connector includes a shell. A locking arm is pivoted to the shell by a pivoting portion, and is provided with a buckling portion for buckling the latch portion. The locking arm includes at least one first position limiting portion and a second position limiting portion in front of the buckling portion. In a separation process of the first and second connectors, the locking arm is actuated, the buckling portion is detached from the latch portion and moves backward, and the latch portion firstly stops the first position limiting portion. After the latch portion is detached from the first position limiting portion, the latch portion stops the second position limiting portion from moving backward.

Abstract: A method for preparing a polyolefin resin powder has the steps of a) heat dissolving a polyolefin resin in an organic solvent having a solubility parameter less than or equal to the solubility parameter of the polyolefin resin to obtain a polyolefin resin solution; b) cooling the polyolefin resin solution to precipitate a solid, thereby obtaining a solid-liquid mixture; c) optionally adding an adjuvant to the solid-liquid mixture and mixing; and d) conducting solid-liquid separation and drying to obtain a polyolefin resin powder suitable for selective laser sintering. The difference between the solubility parameters of the organic solvent and of the polyolefin resin is within 0-20% of the solubility parameter of the polyolefin resin. The polyolefin resin powder obtained according to this method has good antioxidant property, good powder flowability, moderate size, smooth surface, suitable bulk density, and suitable dispersibility and particle size distribution.

Abstract: A polyethylene composition comprising an ethylene/?-olefin copolymerized linear low density polyethylene, wherein the polyethylene composition has a Mw of from 100,000 g/mol to 200,000 g/mol, a Mw/Mn of from 4.0 to 9.0, a Mz/Mw of from 4.0 to 7.0, and a Mz+1/Mw of from 4.5 to 13.5, is provided. A film formed of the polyethylene composition is also provided.

Abstract: A universal locking device for stabilizing and fixing bones, including: a steel plate including a threaded hole, and a locking screw including a threaded rod and a screw head. The screw head includes a universal groove. The screw head includes a periphery having an external thread. The external thread corresponds to the threaded hole of the steel plate.

Abstract: An air water agricultural system includes: an agricultural green house defining an air inlet, an air outlet and a water supply inlet therein; a gaseous water recovery apparatus defining a vapour inlet communicated with the air outlet of the agricultural green house, a vapour outlet, and a liquid water outlet communicated with the water supply inlet of the agricultural green house; and a power source communicated with the gaseous water recovery apparatus.

Abstract: A polyethylene composition comprising an ethylene/?-olefin copolymerized linear low density polyethylene, wherein the polyethylene composition has a Mw of from 100,000 g/mol to 200,000 g/mol, a Mw/Mn of from 4.0 to 9.0, a Mz/Mw of from 4.0 to 7.0, and a Mz+1/Mw of from 4.5 to 13.5, is provided. A film formed of the polyethylene composition is also provided.

Abstract: A toughened plastic and its preparation method, with the toughened plastic being obtained by rubber-plastic blending of brittle or less brittle plastics and a rubber mixture. The rubber mixture consists of powdery rubbers having a cross-linked structure and an average particle size of not more than 0.50 ?m, and at least one selected from the group consisting of unvulcanized rubbers and thermoplastic elastomers. The morphology and the particle size distribution of the rubber phase contained in the toughened plastic can be controlled by changing the particle size of the powdery rubbers having a cross-linking structure and choosing proper unvulcanized rubbers or thermoplastic elastomers. The toughened plastic has good toughness and processability while keeping better strength and stiffness.

Abstract: An electronic card includes a housing, a plurality of contacts retain on the housing and a slider movably retained on the housing. The housing has a mating surface. The contacts are arranged in two rows along a length direction of the housing. Each contact in a first row has a flat first contact portion exposed to the mating surface. Each contact of a second row has a raised elastic second contact portion behind the first contact portion. The slider can move along the length direction of the housing to drive the second contact portions alternatively hiding below the mating surface or protruding out of the mating surface.

Abstract: An automatic assembly jig adapted for assembling an electronic component and a case is provided. The jig includes a working platform, a carrier, a pressure exerting device and at least a gear. The working platform has a guiding rail. The carrier is disposed on the working platform and is slidably mounted on the guiding rail. The pressure exerting device is disposed above the working platform. The gear is disposed on the working platform and connected with the carrier, so as to drive the carrier moving along the guiding rail to the position under the pressure exerting device.

Abstract: An electronic card includes a housing, a plurality of contacts retain on the housing and a slider movably retained on the housing. The housing has a mating surface. The contacts are arranged in two rows along a length direction of the housing. Each contact in a first row has a flat first contact portion exposed to the mating surface. Each contact of a second row has a raised elastic second contact portion behind the first contact portion. The slider can move along the length direction of the housing to drive the second contact portions alternatively hiding below the mating surface or protruding out of the mating surface.

Abstract: An electrical card connector includes an insulative housing, a plurality of terminals retained in the insulative housing, a slide carrier slidable in the insulative housing, an eject mechanism mounted in the insulative housing for pushing the slide carrier, and a locking body attached to the slider for locking the slier carrier with the slider together while an electrical card is inserted into therein. The locking body defines an engaging portion protruding into the insertion slot. The engaging portion is deflectable to release locking engagement between the slider and the slide carrier while another electrical card being inserted into the insertion slot.

Abstract: A card connector (100) for connecting an electronic card (200) includes an insulative housing (1), a plurality of contacts (2) retained in the insulative housing (1), and an ejector (3). The insulative housing (1) defines a receiving space (10) for receiving the electronic card (200). The ejector (3) includes a slider (31) retained in the insulative housing (1), a spring (32) and a pole (33) mounted between the slider (31) and a rear end of the insulative housing (1). The slider (31) has an inner side wall (310), an inclined face (3100) angled with respect to the inner side wall (3100) to abut against the electronic card (200), and a protrusion (3102) projecting inwardly from the inner side wall (310) to resist the electronic card (200) sideward. Thereby the electronic card (200) can be inserted in or ejected from the card connector (100) smoothly.