Abstract: The invention relates to a system for determining surroundings in a wireless network, the system including first and second nodes, each node being programmed to periodically detect the nodes located in the surroundings thereof every time period ?, characterized in that: the first node comprises a transmitter (1) and control means (3) for activating the transmitter (1) for a transmission time ? less than the time period ?, the transmitter transmitting an identification signal during the transmission time ?; the second node comprises a receiver (2) and control means (3) for activating the receiver (2) for a reception time ? less than the time period ?, the receiver (2) listening for the signals from the adjacent nodes during the reception time a, the control means (3) of the second node activating the receiver once per time period ?.

Abstract: A vanadium-based hydrogen permeation alloy for a membrane, a method of manufacturing the same, and a method of using a membrane including the same are provided. The vanadium-based hydrogen permeation alloy for a membrane includes nickel (Ni) at more than 0 atm % and 5 atm % or less, iron (Fe) at 5 atm % to 15 atm %, yttrium (Y) at more than 0 atm % and 1 atm % or less, and a remainder of vanadium and impurities.

Abstract: A Ti-based bulk amorphous matrix composite including a composition represented by Formula 1, in at %: TiaZrbBecCudNieMfIg??Formula 1 where M is at least one of Nb and Ta, I is an impurity, and a, b, c, d, e, and f vary within the ranges 38?a?50, 11?b?18, 12?c?20, 6?d?10, 6?e?9, 1?f?20 and 0.01?g?0.5, with a+b+c+d+e+f+g=100.

Abstract: The invention relates to a system for determining surroundings in a wireless network, the system including first and second nodes, each node being programmed to periodically detect the nodes located in the surroundings thereof every time period ?, characterized in that: the first node comprises a transmitter (1) and control means (3) for activating the transmitter (1) for a transmission time ? less than the time period ?, the transmitter transmitting an identification signal during the transmission time ?; the second node comprises a receiver (2) and control means (3) for activating the receiver (2) for a reception time ? less than the time period ?, the receiver (2) listening for the signals from the adjacent nodes during the reception time a, the control means (3) of the second node activating the receiver once per time period ?.

Abstract: A radiation detector comprising a metal-carbon junction wherein a layer of carbon (11) is deposited on a layer of metal (12) having a work function higher than the work function of carbon (11), the junction having electrical characteristic of a diode.

Abstract: The present invention relates to an amorphous alloy and a method for manufacturing thereof. The amorphous alloy according to the present invention includes has a chemical formula of Ni100-a-b-c-d-e-fNbaZrbTicTadMeIf, wherein the M is at least one selected from a group of Sn and Si, wherein the I is at least one selected from a group of C and O, and wherein the a, b, c, d, e, and f are satisfied with the compositions of 10.0 wt %?a?25.0 wt %, 5.0 wt %?b?25.0 wt %, 5.0 wt %?c?10.0 wt %, 0.0 wt %?d?25.0 wt %, 0.0 wt %?e?6.5 wt %, 0.0 wt %?f?0.5 wt %, respectively.

Abstract: The present invention relates to an amorphous alloy and a method for manufacturing thereof. The amorphous alloy according to the present invention includes has a chemical formula of Feioo-a-b-c-d-e-f-gCraMobCcBaYeMflg. Here, the M is at least one selected from a group consisting of Al, Co, N1 and Ni, and the I is at least one selected from a group consisting of Mn, P, S, and O as impurities. The a, b, c, d, e, f, and g are satisfied with the compositions of 16.0 wt %?a<22.0 wt %, 15.0 wt %<b?27.0 wt %, 2.0 wt %?c<3.5 wt %, 1.0 wt %<d?1.5 wt %, 1.0 wt %<e?3.5 wt %, 0.25 wt %<f?3.0 wt %, and 0.01 wt %?g<0.5 wt %, respectively.

Abstract: A nanometer-sized porous metallic glass and a method for manufacturing the same are provided. The porous metallic glass includes Ti (titanium) at 50.0 at % to 70.0 at %, Y (yttrium) at 0.5 at % to 10.0 at %, Al (aluminum) at 10.0 at % to 30.0 at %, Co (cobalt) at 10.0 at % to 30.0 at %, and impurities. Ti +Y+Al+Co+the impurities=100.0 at %.

Abstract: The present invention relates to an amorphous alloy and a method for manufacturing thereof. The amorphous alloy according to the present invention includes has a chemical formula of Feioo-a-b-c-d-e-f-gCraMobCcBaYeMflg. Here, the M is at least one selected from a group consisting of Al, Co, N1 and Ni, and the I is at least one selected from a group consisting of Mn, P, S, and O as impurities. The a, b, c, d, e, f, and g are satisfied with the compositions of 16.0 wt %?a<22.0 wt %, 15.0 wt %<b?27.0 wt %, 2.0 wt %?c<3.5 wt %, 1.0 wt %<d?1.5 wt %, 1.0 wt %<e?3.5 wt %, 0.25 wt %<f?3.0 wt %, and 0.01 wt %?g<0.5 wt %, respectively.

Abstract: A nanometer-sized porous metallic glass and a method for manufacturing the same are provided. The porous metallic glass includes Ti (titanium) at 50.0 at % to 70.0 at %, Y (yttrium) at 0.5 at % to 10.0 at %, Al (aluminum) at 10.0 at % to 30.0 at %, Co (cobalt) at 10.0 at % to 30.0 at %, and impurities. Ti+Y+Al+Co+the impurities=100.0 at %.

Abstract: In Cu-based bulk amorphous matrix composite materials, comprising a Cu-based amorphous alloy containing high fusion point element(s) selected from a group of Ta, W or combination thereof, wherein the high fusion point element(s) has(have) a shape of crystalline grain and is(are) dispersed around a Cu-based amorphous matrix. Cu-based bulk amorphous matrix composite materials have the composition expressed as the following Chemical formula 1; CuaZrbTicRd??[Chemical formula 1] where R is Ta, W or combination thereof, a, b, c and d are atomic weight ratio, a+b+c+d equals 100, a, b, c, and d have the range of 45?a?65, 10?b?35, 5?c?30, and 5?d?10, respectively.

Abstract: A nanometer-sized porous metallic glass and a method for manufacturing the same are provided. The porous metallic glass includes Ti (titanium) at 50.0 at % to 70.0 at %, Y (yttrium) at 0.5 at % to 10.0 at %, Al (aluminum) at 10.0 at % to 30.0 at %, Co (cobalt) at 10.0 at % to 30.0 at %, and impurities. Ti+Y+Al+Co+the impurities=100.0 at %.

Abstract: A nanometer-sized porous metallic glass and a method for manufacturing the same are provided. The porous metallic glass includes Ti (titanium) at 50.0 at % to 70.0 at %, Y (yttrium) at 0.5 at % to 10.0 at %, Al (aluminum) at 10.0 at % to 30.0 at %, Co (cobalt) at 10. at % to 30.0 at %, and impurities. Ti+Y+Al+Co+the impurities=100.0 at %.

Abstract: The present invention relates to a Cu-based amorphous alloy composition having a chemical composition represented by the following general formula, by atomic %: Cu100-a-b-c-dZraAlb(M1)c(M2)d, where a, b, c and d satisfy the formulas of 36?a?49, 1?b?10, 0?c?10, and 0?d?5, respectively, and c and d are not zero at the same time, and M1, the 4th element added to a ternary alloy of Cu—Zr—Al, is one metal element selected from the group consisting of Nb, Ti, Be and Ag, and M2, the 5th element added to the ternary alloy of the Cu—Zr—Al, is one amphoteric element or non-metal element selected from the group consisting of Sn and Si.

Abstract: The present invention relates to a Cu-based amorphous alloy composition having a chemical composition represented by the following general formula, by atomic %: Cu100-a-b-c-dZraAlb(M1)c(M2)d, where a, b, c and d satisfy the formulas of 36?a?49, 1?b?10, 0?c?10, and 0?d?5, respectively, and c and d are not zero at the same time, and M1, the 4th element added to a ternary alloy of Cu—Zr—Al, is one metal element selected from the group consisting of Nb, Ti, Be and Ag, and M2, the 5th element added to the ternary alloy of the Cu—Zr—Al, is one amphoteric element or non-metal element selected from the group consisting of Sn and Si.