摘要:
An electrically driven hermetic compressor comprises a hermetic casing, an electric motor unit encased in the casing, and a compression mechanism encased by the casing and drivingly connected to the electric motor unit through a crankshaft. The compression mechanism includes a cylinder, a piston reciprocatingly slidable in the cylinder, a valve plate having formed therein a suction port and a discharge port and providing valve seats around the ports, suction valve and a discharge valve cooperating with the suction and discharge ports. The cylinder, the piston and the valve plate cooperate to define a compression chamber. The compressor further has a passage system providing separate passages for a gas to be compressed and the gas after compression, and a motion converting mechanism for converting rotary motion of the crankshaft into linear reciprocating motion of the piston. A frusto-conical projection is formed on the top of the piston at a point offset from the axis of the piston so as to be receivable in the discharge port which also is offset from the axis of the piston, thus minimizing dead volume when the piston has reached its top dead center of its stroke.
摘要:
An information broadcasting method for a communication system including a plurality of stations. The communication system enables any two of the stations to communicate with one another. The communication system includes a conference trunk having at least four channels. One of the channels is an information broadcasting channel for use only in an information broadcasting operation wherein any one of the stations broadcasts information to all of the stations simultaneously via the information broadcasting channel. All other ones of the channels are conference communication channels for use in conference communication wherein any three or more of the stations communicate with one another simultaneously via any three or more of the conference communication channels. During an information broadcasting operation, any one of the stations which is receiving broadcast information from another one of the stations can transmit information to all of the stations in the system, including the station which is broadcasting information, via a vacant conference communication channel in the conference trunk, thereby engaging in bidirectional communication with the station which is broadcasting information during the information broadcasting operation.
摘要:
A method and apparatus for encoding a picture with improved prediction accuracy in predicting the basic quantization step. The apparatus for encoding a picture includes a picture data storage unit, a picture information evaluating unit, an inter-picture correlation detection unit, an orthogonal transform unit for orthogonally transforming the picture data for generating orthogonal transform coefficients, a quantization unit for quantizing the orthogonal transform coefficients produced by the orthogonal transform unit at a pre-set quantization step, an adaptive compression method selection unit and a quantization step control unit. The information quantity is evaluated from stored picture data of plural pictures, and the inter-picture correlation is detected. A picture data compression method is adaptively selected based upon the evaluated value of the information quantity and the inter-picture correlation information. The basic quantization step is predicted from the evaluated value and a pre-set compressed data quantity obtained on compressing one-picture picture data by the selected compression method and the evaluated value.
摘要:
An encoding system which prevents deterioration of a picture quality and provides a high encoding efficiency even when the size of a block is increased to enhance an encoding efficiency. An input image which is divided into blocks by a blocking unit, is supplied to a plurality of encoders which perform encoding in different numbers of tone levels respectively. Respective pieces of encoded image information from the respective encoders are supplied in common to a selector. A block classification unit determines the degree of the tone gradient of an input block and then outputs the classification result to the selector. The selector, in accordance with the block classification result, selects one of the respective pieces of the encoded image information and outputs the selected one as selected encoded image information. For example, when the tone varies greatly, there is selected the encoder which has a small number of tone levels and a high resolution.
摘要:
A grain oriented silicon steel sheet which exhibits reduced iron loss and which contributes excellent noise characteristics when used as a material of a stacked transformer. The sheet is produced by applying electron beam irradiation a finish-annealed grain oriented silicon steel sheet, along scan paths which cross the rolling direction at a scanning speed v(cm/s) and a spacing L(cm) in the rolling direction, with an electron beam of a beam diameter d (cm) generated by a current I.sub.b (mA) and acceleration voltage V.sub.k (kV);wherein the surface energy density .alpha. (J/cm.sup.2) on the surface of said steel sheet as determined by the following formula (1) is about 0.16 J/cm.sup.2 or more, and said surface energy density .alpha. (J/cm.sup.2) and the surface energy density .beta. (J/cm.sup.2) on the scan paths meet the approximate condition of the following formula (3):.alpha.=(V.sub.k .multidot.I.sub.b)/(L.multidot.v) (1).beta.=(V.sub.k .multidot.I.sub.b)/(d.multidot.v) (2) 0.6-0.06 .beta..ltoreq..alpha..ltoreq.0.90-0.08.beta. (3)Disclosed also is a stacked transformer produced from this grain oriented silicon steel sheet.
摘要翻译:一种晶粒取向的硅钢片,其表现出减少的铁损,并且当用作堆叠式变压器的材料时具有优异的噪声特性。 沿着沿轧制方向扫描速度v(cm / s)和轧制方向上的间隔L(cm)的扫描路径,通过对精轧退火晶粒取向硅钢片施加电子束照射来制造片材, 由电流Ib(mA)和加速电压Vk(kV)产生的光束直径d(cm)的电子束; 其中由下式(1)确定的所述钢板表面上的表面能密度α(J / cm 2)为约0.16J / cm 2以上,所述表面能密度α(J / cm 2) 扫描路径上的能量密度β(J / cm 2)符合以下公式(3)的近似条件:α=(VkxIb)/(Lxv)(1)β=(VkxIb)/(dxv)(2) 0.06 beta(3)还公开了由该晶粒取向硅钢板制成的堆叠式变压器。
摘要:
A refrigerating cycle machine characterized by comprising hardware or software means for raising the speed of rotation of the compressor or stopping the fan for producing an air current through the condenser when the operation of the machine is turned off and stopping the operation of the machine when a predetermined time has elapsed. This increases the suction and discharge pressure difference to such an extent that generates a sufficiently high pressure difference between both sides of the valve body to move the valve body toward the closing position surpassing the sticking force when the machine stops.
摘要:
An image data compressing method of the type in which a multi-valued image data signal read by an image input unit is compressed by an image data compressing circuit to be stored into a memory. In the image data compressing method, the image input unit performs a prescan, thereby to obtain prescan image data containing pixels smaller in number than those contained in image data of an original image Next, a definition of the original image is estimated on the basis of the prescan image data, thereby to obtain coding parameters for the image data compressing circuit. Then, the image input unit performs a regular scan, thereby to obtain regular scan image data containing all of pixels of the original image data. Finally, the regular scan image data is compressed using the coding parameters previously obtained.
摘要:
Cosmetic comprising (A) a specific acryl-silicone graft copolymer having an organosiloxane side chain is disclosed. The copolymer is prepared by radical polymerization of (i) a dimethylpolysiloxane compound having a polymerizable radical group on one of the molecular chain terminals and (ii) a radically polymerizable monomer comprising as major components an acrylate or methacrylate, or both. Various cosmetics including makeup cosmetics, o/w emulsion cosmetics, and w/o emulsion cosmetics, are prepared by using the copolymer in combination with (B) a low-viscosity silicone oil, (C) a partially cross-linked organopolysiloxane polymeric compound, (D) a low-boiling-point oil, (E) a volatile solvent, (F) a cosmetic powder material, (G) a polyacrylic acid, (H) a volatile hydrocarbon, (I) a surface active agent, or (J) water. The cosmetic compositions give a good sensation upon use, and exhibit superior water-repellency, water-resistance, oilresistance, and good retentiveness of the makeup.
摘要:
The anchoring assembly comprises a sleeve to be coaxially fixed to one end of a conduit of a push-pull control cable from which an operating end of an inner cable projects, and having an external thread on an outer surface thereof. A locknut has an internal thread on the inner surface thereof engaging with the external thread of the sleeve, and is capable of being rotated and accordingly moved axially by an external force along an axis of the sleeve. A brake piece is movably passed through slidably by the sleeve in such a manner that a rotating movement thereof is restricted, which prevents the locknut from rotating. An outer cap comprises a holder and a snap-in device. The holder holds the brake piece and the locknut. The snap-in device has a snap portion. The brake piece and the locknut can be pressed against a rear side periphery of a penetrating hole of a bracket when the outer cap is inserted into the penetrating hole from the rear side and the snap portion expands to catch a front side periphery of the penetrating hole of the bracket.
摘要:
An actuator for an automatic cruising system comprising a control shaft rotatably provided in a casing, an electromagnetic clutch connected to the control shaft at input side thereof, a Ferguson's type reduction gear having a static internal gear the rotation of which is restricted or permitted according to on-off operation of the electromagnetic clutch, a pinion connected to a motor, a rotary internal gear fixed to the control shaft, and an external linkage mechanism having an output drum for transmitting the motion of the control shaft through an output cable and an input drum for receiving and transmitting an acceleration signal provided by the accelerator pedal through an input cable with the accelerator signal overriding the motor's motion.