Abstract: A liquid crystal composition having a nematic phase that includes a compound represented by Formula (1), a compound represented by Formulas (2-1) and (2-2), and a compound represented by Formulas (3-1) and (3-2), and a liquid crystal display device containing the composition: wherein, for example, R1 is alkenyl having approximately 2 to approximately 12 carbons; R2 is alkyl having approximately 1 to approximately 12 carbons; Y1 is fluorine or chlorine; Y2 is fluorine or trifluoromethoxy; X1 and X2 are each independently hydrogen or fluorine; and Z1 and Z2 are each independently a single bond or —CH2CH2—.

Abstract: A liquid crystal composition having a nematic phase and including a compound represented by Formula (1), a compound represented by Formulas (2-1) and (2-2), and a compound represented by Formulas (3-1), (3-2) and (3-3), and a liquid crystal display device including the composition: wherein, for example, R1 is alkenyl having approximately 2 to approximately 12 carbons; R2, R3, R4, R5 and R6 are alkyl having approximately 1 to approximately 12 carbons; Y1 and Y2 are fluorine; X1 and X5 are hydrogen; and X2, X3 and X4 are hydrogen or fluorine, provided that at least one of X2, X3 and X4 is fluorine.

Abstract: A liquid crystal composition having a nematic phase that includes three components, wherein the first component is at least one compound selected from the group of compounds represented by formula (1), the second component is at least one compound selected from the group of compounds represented by formulas (2-1) to (2-3), and the third component is at least one compound selected from the group of compounds represented by formula (3): wherein R1, R2 and R4 are each independently alkyl having 1 to 12 carbons or alkenyl having 2 to 12 carbons; R3 is fluorine, alkyl having 1 to 12 carbons or alkenyl having 2 to 12 carbons; R5 is fluorine, chlorine, alkyl having 1 to 12 carbons or alkenyl having 2 to 12 carbons; R6 is alkenyl having 2 to 12 carbons; Y1 is fluorine, chlorine or trifluoromethoxy; X1, X2, X3 and X4 are each independently hydrogen or fluorine; and one of X5 and X6 is fluorine, and the other is hydrogen.

Abstract: A liquid crystal composition having a nematic phase that includes two components, wherein the first component is at least one compound selected from the group of compounds represented by formula (1), and the second component is at least one compound selected from the group of compounds having a group represented by formula (2) as a partial structure: wherein R1 and R2 are each independently hydrogen, fluorine, alkyl having 1 to 12 carbons, alkenyl having 2 to 12 carbons or alkoxy having 1 to 12 carbons; R4 is hydrogen, alkyl having 1 to 12 carbons or alkoxy having 1 to 12 carbons; R5, R6, R7 and R8 are each independently alkyl having 1 to 12 carbons; ring A and ring B are each independently 1,4-cyclohexylene, 1,4-phenylene, 3-fluoro-1,4-phenylene or 3,5-difluoro-1,4-phenylene; Z1 and Z2 are each independently a single bond or ethylene; and n and m are each independently 0, 1 or 2, provided that the sum of n and m is 1, 2, 3 or 4.

Abstract: An antenna for receiving electromagnetic waves in a desired frequency band, includes a radiating conductor and a ground conductor, a feeder part, a wavelength-shortening section, and a magnetic field applying section. The radiating conductor and a ground conductor resonate at a resonance point frequency. The feeder part is configured to feed the radiating conductor with electricity. The wavelength-shortening section in which a magnetic body having both a dielectric property and a magnetic property is disposed close to the radiating conductor shifts the resonance point frequency into a band lower than the desired frequency band by a wavelength-shortening effect obtained based on the dielectric property and the magnetic property. The magnetic field applying section is configured to apply a magnetic field to the magnetic body so as to reduce a magnetic loss due to the magnetic body.

Abstract: A liquid crystal composition having a nematic phase and containing at least one compound selected from a group of compounds represented by formula (1) as a first component and at least one compound selected from a group of compounds represented by formula (2-1) or (2-2) as a second component: wherein R1 is alkyl or alkenyl; R2 and R3 are independently; Z1 and Z2 are independently a single bond or ethylene; Y1 is fluorine or chlorine; and X1 and X2 are independently hydrogen or fluorine.

Abstract: A zipper 3 (translator's comment: the zipper should be coded as 11 instead of 3) is stuck on the opening part 2 side of a packaging bag 1 and a heat-sealed part 12 is formed in the outer side from the zipper 3 (translator's comment: the zipper should be coded as 11 instead of 3) to seal the packaging bag 1. A band-shaped unsealing tape 3 is stuck, in parallel to the opening part 2, on one inner surface of the packaging bag 1 in an area between the zipper 3 (translator's comment: the zipper should be coded as 11 instead of 3) and the heat-sealed part 12. A cutout part 4 is formed on a surface opposite to the surface with the unsealing tape 3 stuck thereon at the end part of the unsealing tape 3. A pair of cut-in parts 5 are formed on the packaging bag 1 at the end part of the unsealing tape 3.

Abstract: A deaerator-carrying compression bag (1) capable of deaerating even when a deaerating pump nozzle is not inserted deep into a bag body, comprising a resin bag body (10) formed at one edge of the outer peripheral edge (1) thereof with an opening (11A) for storing an article to be stored (16), a fastener (12) provided on the inner surface of the bag body (10) and acting as an occluding tool for blocking the opening (11A), and a resin deaerator (13) for exhausting the air inside the bag body (10), wherein the deaerator (13) is welded to the bag body (10) at the base end (13A) of the deaerator (13), and the deaerator (13) has a back-flow preventing means (15) for preventing the back-flow of air into the bag body (10).

Abstract: A snap-fastener bag according to the present invention is composed of a quadrilateral bag body, a deaerating passage provided along a bottom-seal and a snap fastener provided along the opening. The deaerating passage is provided by configurating a deaerating passage opening as a non-adhesive part through one side-seal and along the bottom-seal and by configurating an adhesive part near the bottom of the side-seal to near the other side-seal positioned at a predetermined interval from the bottom-seal in parallel to adhere between the top and bottom films. A paint film coated with a sticky substance having the kinematic-viscosity of 4-5,000.times.10.sup.-6 m.sup.2 /s (100.degree. C.) such as polybutene is applied in the deaerating passage.

Abstract: In a weather radar system wherein echo signals are linear-detected from the waves received at the radar, each one of echo signals being compared with the later one to derive AC component, and the mean power of the weather echo estimated from the power of the AC component, the linear-detected echo signals are amplitude suppressed before compared. The amplitude suppression effectively removes the errors due to the fluctuation of ground clutter, and the variation of AC power of weather echo due to the existence of ground clutter. An amplitude suppressor is used which has an amplitude suppressing property expressed by Y=X.sup.k, where X is an amplitude of the input signal, Y is an amplitude of the output signal, and k is a constant (0<k<1). The value of k is advantageously 0.3-0.9, and, more advantageously 0.6-0.7. If the echo signals are obtained in a form of a logarithmic signal, an amplitude suppressor which has an input-output characteristic expressed by, for example, Y=10.sup.

Abstract: Disclosed is a monostable multivibrator in which an output voltage of an integrating circuit and a reference voltage from a reference voltage source are compared by means of a comparator, and a flip-flop is set in response to a comparison voltage of the comparator and reset in response to an external reset signal. The output of the flip-flop operates a transistor for controlling the discharge of a capacitor of the integrating circuit, and is taken out as an output pulse of the monostable multivibrator.

Abstract: Ground clutter is automatically eliminated from echo signals in a weather pulse radar system to provide signals having an amplitude corresponding to the average intensity of the weather echo over a number of pulses. The reflected waves received in the receiver are linear-detected to provide echo signals. Each one of successive echo signals is compared with another later one which is apart from the each one echo signal by a predetermined time period during which fluctuation of weather target becomes independent, to derive an AC component signal corresponding to the fluctuation. The variance of the amplitude of the derived signal is proportional to the mean power of the weather echo. Thus, the ground clutter and the DC component of the weather echo are eliminated. The AC component signals are unipolarized and, thereafter, averaged. The averaged signals have an amplitude corresponding to the average intensity of the weather echo.

Abstract: In a method of manufacturing a permeable seat cushion, a permeable fabric material is pressed between a pair of dies while being heated and wetted with steam to render the fabric temporarily unpermeable to provide a seat covering of bag-like structure. A first precut filler pad is bonded to the seat covering, and a second precut filler pad is then bonded to the first filler pad. A frame is mounted together with springs and other necessary elements on the thus obtained assembly, and the seat covering is anchored at its pheripheral edges to the frame to complete the seat cushion.