Abstract: The present disclosure provides a method and an apparatus for information transmission, the method including: transmitting a Physical Random Access Channel (PRACH) or a Physical Uplink Shared Channel (PUSCH) over an uplink narrow band to a wireless communication node, wherein the uplink narrow band is selected from a set of narrow bands based on a coverage level of each narrow band in the set of narrow bands; and receiving a downlink control channel or a Physical Downlink Shared Channel (PDSCH) over a downlink narrow band corresponding to the uplink narrow band or an anchor carrier, wherein the set of narrow bands is configured by the wireless communication node.

Abstract: The present invention provides a method and admixture composition for making hydratable cementitious compositions, ones believed to have much less stickiness in comparison to prior methods. Decreased stickiness in concrete mixes means that they are easier to pour or to cast into place, as well as easier to finish. Dispersant carboxylate polymers of the invention having this ability are characterized by possessing two different, relatively short chain lengths of polyalkyleneoxide units and low weight-average molecular weights.

Abstract: The present invention relates to modification of hydratable cement and cementitious materials, such as mortar cement and masonry or ready-mix concrete using ketone alcohol oil waste (“KAOW”) material, obtained as an alkali-soluble liquor waste byproduct at a certain stage in the commercial production of cyclohexanol and cyclohexanone. Preferred applications for KAOW are in chemical admixture formulations whereby KAOW is used to substitute for a portion of a cement dispersant such as sodium lignosulfonate, sodium gluconate, or other conventional dispersant. Another preferred use is in mortar cement and masonry concrete units such as blocks, pavers, curbstones, and other concrete masonry units wherein air void systems advantageously foster freeze-thaw durability.

Abstract: The present invention provides a method for treating clay-bearing aggregates, particularly those used for construction purposes, which involve introducing to clay-bearing aggregates an ion-exchanged polycondensate of dialkylamine and epichlorohydrin having anionic groups comprising both acetate and chloride ionic groups, wherein the acetate is present in an amount of 51-99 percent, and more preferably in the amount of 60-95 percent, based on molar concentration of the anionic groups, whereby chloride ionic groups are minimally present.

Abstract: The present invention provides a method and admixture composition for making hydratable cementitious compositions, ones believed to have much less stickiness in comparison to prior methods. Decreased stickiness in concrete mixes means that they are easier to pour or to cast into place, as well as easier to finish. Dispersant carboxylate polymers of the invention having this ability are characterized by possessing two different, relatively short chain lengths of polyalkyleneoxide units and low weight-average molecular weights.

Abstract: The present invention relates to modification of hydratable cement and cementitious materials, such as mortar cement and masonry or ready-mix concrete using ketone alcohol oil waste (“KAOW”) material, obtained as an alkali-soluble liquor waste byproduct at a certain stage in the commercial production of cyclohexanol and cyclohexanone. Preferred applications for KAOW are in chemical admixture formulations whereby KAOW is used to substitute for a portion of a cement dispersant such as sodium lignosulfonate, sodium gluconate, or other conventional dispersant. Another preferred use is in mortar cement and masonry concrete units such as blocks, pavers, curbstones, and other concrete masonry units wherein air void systems advantageously foster freeze-thaw durability.

Abstract: A graded refractive index bending-resistant multimode optical fiber includes a core layer and claddings. The core layer has a radius in a range of 20-50 ?m; refractive indexes being a graded refractive index distribution with a distribution exponent ? in a range of 1.89-1.97; and a maximum relative refractive index difference (RRID) ?1% max in a range of 0.9%-2.72%. The claddings has an inner cladding surrounding the core layer, an intermediate cladding surrounding the inner cladding and an outer cladding surrounding the inner cladding. The inner cladding has a radius in a range of 22-57 ?m, and an RRID ?2% in a range of ?0.02%-0.02%. The intermediate cladding is a pure quartz glass layer, and has a radius in a range of 32-60 ?m, and an RRID ?3% in a range of ?0.01%-0.01%.

Abstract: A graded refractive index bending-resistant multimode optical fiber includes a core layer and claddings. The core layer has a radius in a range of 22.5-27.5 ?m; refractive indexes being a gradient-graded refractive index distribution with a distribution exponent ? in a range of 1.99-2.06; and a maximum relative refractive index difference (RRID) ?1% max in a range of 0.9%-1.3%. The claddings has an inner cladding surrounding the core layer, an intermediate cladding surrounding the inner cladding and an outer cladding surrounding the inner cladding. The inner cladding has a radius in a range of 25.5-34.5 ?m, and an RRID ?2% in a range of ?0.02%-0.02%. The intermediate cladding is a pure quartz glass layer, and has a radius in a range of 30.5-49.5 ?m, and an RRID ?3% in a range of ?0.01%-0.01%. The outer cladding has a radius in a range of 61.5-63.5 ?m, and an RRID ?4% is in a range of ?0.20%-0.30%.

Abstract: A dispersion compensation fiber comprises a fiber core and cladding. The fiber core is a core layer mainly doped with germanium and having a positive relative refractive index difference. The cladding covering the fiber core comprises a trench cladding mainly doped with fluorine, an annular cladding mainly doped with germanium, a matching cladding mainly doped with fluorine, and an outermost mechanical cladding in order. Relative refractive index differences of the fiber core and the claddings are respectively: ?1% being 1.55% to 2.20%, ?2% being ?0.55% to ?0.30%, ?3% being 0.40% to 0.65%, ?4% being ?0.20% to ?0.01%, and ?5% being 0. Radius ranges, from R1 to R5, of the fiber core and the claddings are respectively: R1 being 1.4 to 1.7 ?m, R2 being 4.1 to 4.8 ?m, R3 being 6.7 to 8.8 ?m, R4 being 10 to 17 ?m, and R5 being 38 to 63 ?m.

Abstract: A bending-resistant large core diameter high numerical aperture multimode fiber includes a core and a cladding surrounding the core. The core has a radius R1 in a range of 28 to 50 microns, a refractive index profile of a parabola shape with ? being in a range of 1.9 to 2.2, and a maximum relative refractive index difference ?1% max being in a range of 1.9% to 2.5%. The cladding includes an inner cladding and/or a trench cladding, and an outer cladding disposed from the inner to the outer in sequence. The radius R2 of the inner cladding is in a range of 28 to 55 microns, and the relative refractive index difference ?2% is ?0.1% to 0.1%. The radius R3 of the trench cladding is in a range of 28 to 60 microns, and the relative refractive index difference ?3% is in a range of ?0.15% to ?0.8%.

Abstract: A graded refractive index bending-resistant multimode optical fiber includes a core layer and claddings. The core layer has a radius in a range of 22.5-27.5 ?m; refractive indexes being a gradient-graded refractive index distribution with a distribution exponent ? in a range of 1.99-2.06; and a maximum relative refractive index difference (RRID) ?1% max in a range of 0.9%-1.3%. The claddings has an inner cladding surrounding the core layer, an intermediate cladding surrounding the inner cladding and an outer cladding surrounding the inner cladding. The inner cladding has a radius in a range of 25.5-34.5 ?m, and an RRID ?2% in a range of ?0.02%-0.02%. The intermediate cladding is a pure quartz glass layer, and has a radius in a range of 30.5-49.5 ?m, and an RRID ?3% in a range of ?0.01%-0.01%. The outer cladding has a radius in a range of 61.5-63.5 ?m, and an RRID ?4% is in a range of ?0.20%-0.30%.

Abstract: A graded refractive index bending-resistant multimode optical fiber includes a core layer and claddings. The core layer has a radius in a range of 20-50 ?m; refractive indexes being a gradient-graded refractive index distribution with a distribution exponent a in a range of 1.89-1.97; and a maximum relative refractive index difference (RRID) ?1% max in a range of 0.9%-2.72%. The claddings has an inner cladding surrounding the core layer, an intermediate cladding surrounding the inner cladding and an outer cladding surrounding the inner cladding. The inner cladding has a radius in a range of 22-57 ?m, and an RRID ?2% in a range of ?0.02%-0.02%. The intermediate cladding is a pure quartz glass layer, and has a radius in a range of 32-60 ?m, and an RRID ?3% in a range of ?0.01%-0.01%.

Abstract: A dispersion compensation fiber comprises a fiber core and cladding. The fiber core is a core layer mainly doped with germanium and having a positive relative refractive index difference. The cladding covering the fiber core comprises a trench cladding mainly doped with fluorine, an annular cladding mainly doped with germanium, a matching cladding mainly doped with fluorine, and an outermost mechanical cladding in order. Relative refractive index differences of the fiber core and the claddings are respectively: ?1% being 1.55% to 2.20%, ?2% being ?0.55% to ?0.30%, ?3% being 0.40% to 0.65%, ?4% being ?0.20% to ?0.01%, and ?5% being 0. Radius ranges, from R1 to R5, of the fiber core and the claddings are respectively: R1 being 1.4 to 1.7 ?m, R2 being 4.1 to 4.8 ?m, R3 being 6.7 to 8.8 ?m, R4 being 10 to 17 ?m, and R5 being 38 to 63 ?m.

Abstract: The present invention relates to the use of polycationic compound in combination with a hydroxycarboxylic acid or salt thereof to enhance slump retention in cements and concretes having clay-bearing aggregates, wherein the clay otherwise absorbs or diminishes the dosage efficiency of polycarboxylate superplasticizers.

Abstract: A bending-resistant large core diameter high numerical aperture multimode fiber includes a core and a cladding surrounding the core. The core has a radius R1 in a range of 28 to 50 microns, a refractive index profile of a parabola shape with ? being in a range of 1.9 to 2.2, and a maximum relative refractive index difference ?1% max being in a range of 1.9% to 2.5%. The cladding includes an inner cladding and/or a trench cladding, and an outer cladding disposed from the inner to the outer in sequence. The radius R2 of the inner cladding is in a range of 28 to 55 microns, and the relative refractive index difference ?2% is ?0.1% to 0.1%. The radius R3 of the trench cladding is in a range of 28 to 60 microns, and the relative refractive index difference ?3% is in a range of ?0.15% to ?0.8%.

Abstract: An electrical connector for connecting with an electrical card comprises a plurality of signal terminal modules and at least one ground terminal. Each of the plurality of signal terminal modules having a pair of signal terminal and an insulation body. Each of the pair of signal terminals include a first contact portion, a first securing portion, and a first connection portion positioned between the first contact portion and the first securing portion. The insulation body is overmolded to each first connection portion of the pair of signal terminals. The ground terminal includes a pair of second contact portions, a second securing portion, and a second connection portion positioned between the pair of second contact portions and the second securing portion. The insulation body includes openings positioned to correspond to each of the pair of signal terminals, with a portion of each of the pair of signal terminals is exposed.

Abstract: The present invention discloses an electrical connector having an insulator body, a shield, and an upper and a lower rows of terminals. The shield is constructed to enclose the insulator body. The upper and a lower rows of terminals are held in the insulator body, wherein one of the two rows of terminals is a row of low speed circuit terminals and the other is a row of high speed circuit terminals having two pairs of high speed differential signal terminals and a first ground terminal. At least a portion of the first ground terminal has a width larger than a corresponding portion of each of high speed differential signal terminals. The ground terminal of the high speed circuit is widened compared with high speed differential signal terminals, and it can effectively reduce the inductive coupling crosstalk between the high speed differential signal terminals.

Abstract: An electrical connector including an insulator body, a shield, and an upper and lower rows of terminals held in the insulator body. One of the two rows of terminals is a row of low speed circuit terminals, and the other one is a row of high speed circuit terminals. The row of high speed circuit terminals includes two pairs of high speed differential signal terminals, and each of the high speed differential signal terminals has a contact portion, an insertion portion and a connection portion between the contact portion and the insertion portion. A part of the connection portion of the high speed differential signal terminal is folded away from the low speed circuit terminal to form a folding section. It increases the space between the high speed differential signal terminal and the low speed circuit terminal and effectively reduces the capacitive coupling crosstalk therebetween.

Abstract: An electrical connector for connecting with an electrical card comprises a plurality of signal terminal modules and at least one ground terminal. Each of the plurality of signal terminal modules having a pair of signal terminal and an insulation body. Each of the pair of signal terminals include a first contact portion, a first securing portion, and a first connection portion positioned between the first contact portion and the first securing portion. The insulation body is overmolded to each first connection portion of the pair of signal terminals. The ground terminal includes a pair of second contact portions, a second securing portion, and a second connection portion positioned between the pair of second contact portions and the second securing portion. The insulation body includes openings positioned to correspond to each of the pair of signal terminals, with a portion of each of the pair of signal terminals is exposed.

Abstract: The present invention discloses an electrical connector having an insulator body, a shield, and an upper and a lower rows of terminals. The shield is constructed to enclose the insulator body. The upper and a lower rows of terminals are held in the insulator body, wherein one of the two rows of terminals is a row of low speed circuit terminals and the other is a row of high speed circuit terminals having two pairs of high speed differential signal terminals and a first ground terminal. At least a portion of the first ground terminal has a width larger than a corresponding portion of each of high speed differential signal terminals. The ground terminal of the high speed circuit is widened compared with high speed differential signal terminals, and it can effectively reduce the inductive coupling crosstalk between the high speed differential signal terminals.