Abstract: Provided are a methane-selective composite membrane comprising: a UiO-66 type organic-inorganic composite nanoporous material, a MIL-100 type organic-inorganic composite nanoporous material, or a ZIF-8 type organic-inorganic composite nanoporous material to which a methane-selective functional group is introduced for selectively separating methane from a gas mixture containing methane/nitrogen, a use thereof, and a method of preparing the same.

Abstract: An electronic package, a packaging substrate, and methods for fabricating the same are disposed. The electronic package includes a circuit structure having a first side and a second side opposing the first side, an electronic component disposed on the first side of the circuit structure, an encapsulation layer formed on the first side of the circuit structure and encapsulating the electronic component, a metal structure disposed on the second side of the circuit structure, and a plurality of conductive elements disposed on the metal structure. The plurality of conductive elements are disposed on the metal structure, rather than disposed on the circuit structure directly. Therefore, the bonding between the conductive elements and the circuit structure is improved, to avoid the plurality of conductive elements from being peeled.

Abstract: The present invention relates to a BCDA-based semi-alicyclic homo- or co-polyimide membrane material for gas separation and a preparation method thereof. The polyimide material prepared according to the present invention has high solubility in casting solvents, particularly in polar organic solvents, by interrupting asymmetry in the polyimide chain structure and formation of polyimide complexes compared with aromatic polyimides, and has higher heat resistance than the conventional aromatic polyimides and aliphatic polyimides, so that it is useful for the process of a high-selective permeable composite membrane or a asymmetric hollow fiber membrane used for commercial purposes, suggesting that it can be effectively used as a membrane for gas separation in various fields. In addition, the polyimide material membrane for gas separation of the present invention is useful because it has superior gas separation properties to the conventional commercialized aromatic polyimides or semi-alicyclic polyimides.

Abstract: A Raman probe provided includes a light source part configured to emit light on a sample, and further configured to adjust at least one of an incident angle of the light, a position of an emission point of the light, and a focal point of the light source part, a light collector configured to collect Raman scattered light from the sample, and further configured to adjust a field of view of Raman measurement and a focal point of the light collector, and a photodetector configured to receive the collected Raman scattered light, wherein the light source part comprises a reflection mirror configured to rotate to adjust the position of the emission point of the light.

Abstract: A delay locked loop circuit includes a duty detector configured to detect a duty cycle of a clock signal, and to determine whether to perform a coarse duty cycle correction based on the detected duty, and a delay locked loop core. The delay locked loop core is configured to selectively perform the coarse duty cycle correction for the clock signal according to the determination of the duty detector, perform a coarse lock for the clock signal during a first time period different from a second time period in which the coarse duty cycle correction is performed, and perform a fine duty cycle correction and a fine lock for the clock signal.

Abstract: Provided are a Raman probe and a bio-component analyzing apparatus using the same. The Raman probe according to an embodiment of the present disclosure may include: a probe head having a concave part configured to receive skin of an object being inserted into the concave part when the probe head comes into contact with the skin of the object; a light source part configured to emit light onto the skin inserted into the concave part; and a light collector formed above the concave part and configured to collect Raman scattered light from the skin inserted into the concave part. The light source part may be disposed on a side of at least one of the light collector and the concave part.

Abstract: A spectral image correcting apparatus includes: an image acquirer configured to acquire a spectral image; and a processor configured to detect a peak wavelength corresponding to a characteristic wavelength based on a differential value of a spectrum of the spectral image, and correct a curvature of the spectral image based on the detected peak wavelength.

Abstract: The present invention provides a anion-exchange composite membrane comprising a copolymer containing a vinylbenzyl trialkylammonium salt repeating unit, a styrene repeating unit and a divinylbenzene derived repeating unit; an olefin additive; a plasticizer; and a polyvinyl halide polymer. The anion-exchange composite membrane comprising a copolymer containing a vinylbenzyl trialkylammonium salt repeating unit, a styrene repeating unit and a divinylbenzene derived repeating unit; an olefin additive; a plasticizer; and polyvinylidene fluoride of the present invention not only displays low electrical resistance, excellent ion exchange capability, excellent ionic conductivity, excellent mechanical properties, excellent chemical properties, and processability, but also is easy to regulate its ion exchange capacity and ionic conductivity. Also, the composite membrane of the invention is easier to produce and cheaper to manufacture than the conventional anion-exchange composite membrane.

Abstract: A apparatus for estimating concentration may include: a spectrum obtainer configured to obtain Raman spectra of an object; and a processor configured to extract, from the Raman spectra, at least one analyte spectrum related to an analyte and at least one non-analyte spectrum related to a biological component other than the analyte, and estimate concentration of the analyte based on a first area under a curve of the at least one analyte spectrum and a second area under a curve of the at least one non-analyte spectrum.

Abstract: A Raman probe includes: a light source configured to emit light onto an object; a light collector configured to collect Raman-scattered light from the object by reflecting the Raman-scattered light, the light collector including a light incident port, a light emitting port, and a reflective surface including a light incident port portion and a light emitting port portion, a slope of the light incident port portion with respect to an optical axis of the light collector being smaller than a slope of the light emitting port portion with respect to the optical axis; a condenser lens configured to collect the Raman-scattered light collected by the light collector; and a photodetector configured to detect the Raman-scattered light collected by the condenser lens.

Abstract: The present invention provides a cation-exchange composite membrane comprising a copolymer containing a styrene repeating unit introduced with a sulfonation group, a tert-butylstyrene repeating unit and a crosslink repeating unit, an olefin additive, a plasticizer and a polyvinyl halide polymer. The cation-exchange composite membrane comprising a copolymer containing a styrene repeating unit introduced with a sulfonation group, a tert-butylstyrene repeating unit and a crosslink repeating unit, an olefin additive, a plasticizer and a polyvinyl halide polymer of the present invention not only displays low electrical resistance, excellent ion exchange capability, excellent ionic conductivity, excellent mechanical properties, excellent chemical properties, and processability, but also is easy to regulate its ion exchange ability and ionic conductivity. Also, the composite membrane of the invention is easier to produce and cheaper to manufacture than the conventional cation-exchange composite membrane.

Abstract: A spectral image correcting apparatus includes: an image acquirer configured to acquire a spectral image; and a processor configured to detect a peak wavelength corresponding to a characteristic wavelength based on a differential value of a spectrum of the spectral image, and correct a curvature of the spectral image based on the detected peak wavelength.

Abstract: A separation membrane for olefin separation and olefin separation method using the same are provided.

Abstract: Provided is a pressure tank having a lattice structure, including: a tank body that has a high-pressure fluid accommodated therein and is manufactured to have a prismatic shape; and cell structures that are disposed in the prismatic tank body, are manufactured in a lattice form, arrive from one side wall of the tank body to the other side wall thereof facing it, and are orthogonally arranged regularly.

Abstract: A Raman probe provided includes a light source part configured to emit light on a sample, and further configured to adjust at least one of an incident angle of the light, a position of an emission point of the light, and a focal point of the light source part, a light collector configured to collect Raman scattered light from the sample, and further configured to adjust a field of view of Raman measurement and a focal point of the light collector, and a photodetector configured to receive the collected Raman scattered light, wherein the light source part comprises a reflection mirror configured to rotate to adjust the position of the emission point of the light.

Abstract: Provided are a Raman probe and a bio-component analyzing apparatus using the same. The Raman probe according to an embodiment of the present disclosure may include: a probe head having a concave part configured to receive skin of an object being inserted into the concave part when the probe head comes into contact with the skin of the object; a light source part configured to emit light onto the skin inserted into the concave part; and a light collector formed above the concave part and configured to collect Raman scattered light from the skin inserted into the concave part. The light source part may be disposed on a side of at least one of the light collector and the concave part.

Abstract: A delay locked loop circuit includes a duty detector configured to detect a duty cycle of a clock signal, and to determine whether to perform a coarse duty cycle correction based on the detected duty, and a delay locked loop core. The delay locked loop core is configured to selectively perform the coarse duty cycle correction for the clock signal according to the determination of the duty detector, perform a coarse lock for the clock signal during a first time period different from a second time period in which the coarse duty cycle correction is performed, and perform a fine duty cycle correction and a fine lock for the clock signal.

Abstract: An amplifying circuit includes a first gain adjusting circuit, a second gain adjusting circuit, a load circuit and a switch module. When the amplifying circuit operates in a first mode, the first gain adjusting circuit receives a first input signal, and generates a first output signal to a second output terminal of the amplifying circuit via the load circuit and the switch module; and when the amplifying circuit operates in a second mode, the second gain adjusting circuit receives a second input signal, and generates a second output signal to a first output terminal of the amplifying circuit via the load circuit and the switch module.

Abstract: An amplifying circuit includes a first gain adjusting circuit, a second gain adjusting circuit, a load circuit and a switch module. When the amplifying circuit operates in a first mode, the first gain adjusting circuit receives a first input signal, and generates a first output signal to a second output terminal of the amplifying circuit via the load circuit and the switch module; and when the amplifying circuit operates in a second mode, the second gain adjusting circuit receives a second input signal, and generates a second output signal to a first output terminal of the amplifying circuit via the load circuit and the switch module.

Abstract: A fluid storage tank according to an embodiment of the present invention comprises: a first outer wall section that forms a front face in the length direction, the width direction and the height direction so as to form a space portion in which a fluid is stored; a plurality of partition plates arranged along the length direction of the first outer wall portion to divide the space portion into the plurality of sub-space portions; and an end portion located between the outermost partition plate of the plurality of partition plates and the first outer wall portion, wherein each of the partition plates is formed with a fluid through hole comprising: a gas through hole located on the top of the partition plate; and a liquid through hole located on the bottom of the partition plate so that fluids between the sub-pace portions are in communication with each other.