Abstract: The gallium nitride compound semiconductor light emitting element includes: a substrate; a first semiconductor multilayer structure including, at least, an active layer, a first cladding layer of a first conductivity type, and a second cladding layer of a second conductivity type, the first and second cladding layers sandwiching the active layer therebetween; a dry etching stop layer of the second conductivity type formed on the first semiconductor multilayer structure; and a second semiconductor multilayer structure formed on the dry etching stop layer.

Abstract: Cyclic pentapeptides are disclosed having the following formula (I) --Cyclo(-A.sub.1 -A.sub.2 -A.sub.3 -A.sub.4 -A.sub.5 -)-- wherein A.sub.1, A.sub.2, A.sub.3, A.sub.4 and A.sub.5, are amino acid residues. The pentapeptide has amino acid residues in positions 1-2-3 to form a .gamma.-turn, and amino acid residues in positions 3-4-5-1 to form a .beta.-turn in combination with the .gamma.-turn. D-.alpha.-amino acid residues are selected for A.sub.1, A.sub.3, and A.sub.5 and L-.alpha.-amino acid residues are selected for A.sub.2 and A.sub.4. Compounds having .gamma.-turns and .beta.-turns can be synthesized, regardless of the kinds of amino acid residues, and it is possible to synthesize compounds in which desired amino acid residues are introduced into sites of .beta.-turn and .gamma.-turn based on their importance from the viewpoint of biological activity. The present invention is therefore available for design of compounds having biological activity.

Abstract: An apparatus according to the present invention includes a stepping motor (5) and a motor drive circuit (4) for first moving a lamp unit to hit the unit against a reference object opposite to an origin and then moving the unit toward the origin, a CPU (3) for measuring the distance through which the lamp unit is moved from the reference object toward the origin, and the CPU (3) for controlling the lamp unit so that the lamp unit stops at the origin according to the distance measured from the reference object.

Abstract: The present invention provides a pressure-sensitive adhesive sheet for surface protection which has been laminated the following three layers of:(A) a layer which contains 60-100% by weight of an elastomer, containing 100-50% by weight of a hydrogenated random copolymer consisting of 1-50% by weight of styrene and 99-50% by weight of a diene hydrocarbon and 0-50% by weight of a low-molecular-weight elastomer, and 40-0% by weight of a polyolefin;(B) a layer which contains 3-95% by weight of a hydrogenated random copolymer consisting of 1-50% by weight of styrene and 99-50% by weight of a diene hydrocarbon and 97-5% by weight of a polyolefin; and(C) a layer which has at least one layer of a polyolefin,which has good adhesion to an object to be adhered, which can be easily removed (peeled off) from an object to be adhered after exposure to carbon arc, which has also good adhesion between the respective layers and which neither stains the surface to which the adhesive sheet is adhered nor leaves any adhesion mark

Abstract: An image forming apparatus includes control power source section for controlling a potential to be supplied to a control electrode so that the potential becomes closer to a potential of the holder than a potential on center portions of gates caused by a potential difference across the holder and a counter electrode formed by a high voltage power source section when the charged toner is allowed to pass the gates. In accordance with the above arrangement, the toner receives electric force directing towards the center portions of the gates, and thus a prescribed-shaped dot having a smaller diameter than of the gates is formed on a recording medium. Moreover, since toner does not scatter, a dot to be formed on a recording medium has a clear outline and obtains sufficient density. Therefore, a clear image with high contrast can be obtained. Quality of an image formed on a recording medium can be improved only by controlling the potential to be supplied to the control electrode.

Abstract: A bone plate having an elongated intermediate portion and at least a hole at each end for receiving an anchoring screw 10 is created. The bone plate should be usable for different lengths and should allow the possibility of contraction and distraction of parts to be connected during the operation in a simple manner. For this purpose, the intermediate portion comprises a first portion 1 having an elongated hole 3, 4 extending in the longitudinal direction of the intermediate portion and a second portion 2 having bores 13, 14 and being connectable with the first portion 1. A screw connecting the two portions is provided being guided through the elongated hole 3, 4 for connecting the two portions. One of the portions comprises a structured surface 18, and the other portion comprises a recess for registering therewith. Further, a fixing element 19 is provided for engagement with the structure for locking the relative position of the two portions 1, 2 relative to each other.

Abstract: A combinatorial weighing apparatus is provided with a distributing device (1) for distributing products to be supplied and a plurality of weighing receptacles (4) arranged substantially in a plane around the distributing device, a plurality of feeding devices (2, 3) for feeding the products from the distributing device (1) to a corresponding one of the weighing receptacles (4) and an apparatus which is arranged below the weighing receptacles (4) and comprises a central discharge opening (7). The apparatus is formed as a conveying apparatus having a conveying member (5, 6) and a drive member, the conveying member (5, 6) being disposed below the weighing receptacles (4) substantially parallel to the first plane and drivable by the drive member in such a manner that the products dropped from the weighing receptacles (4) are transported to the discharge opening (7). The combinatorial weighing apparatus can process delicate weighing goods without damaging the same.

Abstract: The viscometer of the present invention comprises a chamber, and inside the chamber is secured a measuring tube and a falling piston. The piston has a lift plate secured to its top by means of a short small shaft. There are one or more lifting fingers, which operate through a defined distance large enough to raise the piston up and then drop back down to a base position thus leaving the piston free to fall by gravity to its lowermost position. However, the mechanical design is such that these fingers when lowered will not touch the actual piston itself. Mounted underneath the piston, when it is in its lowermost position, is a proximity switch that is used to sense when the piston is in its lowermost position. The time it takes to travel from its raised position to its lowermost position is a function of viscosity. The present invention combines the concept of a "falling member" with a compact bi-directional flow concept and an easily opened and cleaned measuring chamber.

Abstract: The present invention relates to a polyester ether film comprising a polyester ether comprising a dicarboxylic acid moiety comprising principally terephthalic acid, its ester derivative or a mixture thereof, and a diol moiety comprising principally tetramethylene glycol and polytetramethylene oxide glycol, the percentage of the polytetramethylene oxide glycol residue in said polyester ether being 1 to 30% by weight based on the weight of said polyester ether.

Abstract: A purification process of N-vinylformamide, which comprises: providing a crude N-vinylformamide having an acetone-insoluble component content of not more than 400 ppm; and continuously feeding the crude N-vinylformamide into a fractionating tower, to obtain an N-vinylformamide having high purity. Also disclose is a continuous purification process of N-vinylformamide, which comprises the steps of: providing a crude N-vinylformamide; feeding the crude N-vinylformamide into a thin film evaporator to remove un-evaporated fraction from the system, and feeding the evaporated fraction containing N-vinylformamide into a fractionating tower, distilling the purified N-vinylformamide from the tower head, and discharging a bottom liquid containing N-vinylformamide from the tower bottom, and recycling the bottom liquid into the thin film evaporator to remove un-evaporated fraction from the system, and feeding the evaporated fraction into the fractionating tower.

Abstract: According to this invention, antibodies which are useful and novel in that they have binding specificity to .beta.-amyloids or derivatives thereof, namely recognize the N-terminal, the C-terminal or central portions of the .beta.-amyloids, respectively, were obtained. By combining these antibodies, determination methods by which the .beta.-amyloids could be determined sensitively and specifically are provided. These determination methods are useful for diagnosis of diseases to which the .beta.-amyloids or their derivatives are related (for example, Alzheimer's disease), and the antibodies of this invention are useful for the development of preventive-therapeutic compositions for Alzheimer's disease.

Abstract: This invention provides a liquid crystal display device including a display medium layer containing at least a liquid crystal material sandwiched between a pair of substrates. In this liquid crystal display device, at least one of the pair of substrates is a plastic substrate having first irregularities on a surface facing the display medium layer, and a polymer wall of a photocurable resin is formed in the display medium layer.

Abstract: The present invention provides a cathepsin L inhibitor containing a compound of the formula: ##STR1## wherein R.sup.1 is a hydrogen atom or an arylalkyl, heterocyclic-alkyl or lower alkyl group which may be substituted; R.sup.2 and R.sup.3 independently are a hydrogen atom or a hydrocarbon residue which may be substituted; R.sup.4 is an alkanoyl, sulfonyl, carbonyloxy, carbamoyl or thiocarbamoyl group which may be substituted; X is formula: --CHO or --CH.sub.2 OB (wherein B is a hydrogen atom or a protecting group of hydroxyl group); m and n independently are an integer of 0 or 1; provided that R.sup.4 is an alkanoyl group substituted by aryl, a sulfonyl group substituted by aryl having more than 9 carbon atoms or by lower alkyl, or a carbamoyl or thiocarbamoyl group which may be substituted when R.sup.1 is an unsubstituted lower alkyl, arylalkyl on methylthioethyl group, R.sup.2 and R.sup.3 independently are a lower alkyl or arylalkyl, X is --CHO, m is 1 and n is 0 or 1, or a salt thereof.

Abstract: The present invention provides therapeutically useful substituted guanidines and methods of treatment and pharmaceutical compositions that utilize or comprise one or more of such guanidines.

Abstract: In a DMA controller in accordance with the present invention, in the case of memory-to-memory data transfer using the DMA process (transfer for changing addresses inside the memory), one channel for carrying out the data transfer is provided. In the case of data transfer between the I/O device and a memory using the DMA process, two channels for carrying out the data transfer are, on the other hand, provided by using a circuit that constitutes said one channel. Thus, it is possible to provide multiple channels in the DMA controller by using a compact, inexpensive circuit construction.

Abstract: In a method of processing 16:9 pictures for display on a screen with a 4:3 aspect ratio, each line of the television signal is compressed and/or expanded so that the ratio of the length of a segment of unprocessed signal to the length of the resultant signal derived from it, varies along the line. Preferably, each line is subject to "cylindrical" processing such that it is compressed as though the line were extended along an arc of a circle and projected along a direction onto a flat plane joining the ends of the arc. The picture may also be subject to slight vertical stretching to give a final image which is subject to distortion at an acceptable level while retaining a good level of vertical detail.

Abstract: The diffusion optical guide plate of this invention includes a transparent plate having the first plane, the second plane and side faces; and a light scattering controlling means for scattering incident light from said side face so as to allow the light to go out through the second plane, and transmitting incident light from said first plane so as to allow the light to go out through said second plane.

Abstract: Enabling to perform the pressurization release and the fixture release simultaneously by one action when taking out the fixing device from the image forming device for removing the jammed paper and the like. In a fixing device comprising a pressurization roll being pressurized by the act of a pressurization lever and a spring against a heat roll, a release lever is further mounted rotatably which comprises a cam for rotating the pressurization lever against the direction of force from the spring. On the release lever is mounted a connecting pin, and the connecting pin is linked to and rotates the fixing lever which is also mounted rotatably. The fixing lever is forced toward the fixing direction by a spring, wherein a fixing piece is inserted to a fixing slit of a mounting stage formed on the image forming device body for positioning thereto.

Abstract: Non-linear picture transformations in a video image motion compensation system are caused by camera zooms or rotations. Sets of trial vectors are derived for each block of the image representing peak correlation values between adjacent images in the sequence. A constant representing the non-linear transformation is estimated using the sets of trial vectors and this enables a vector representing the non-linear transformation to be added to the trial vector list for each block.

Abstract: In an image processing method, an image is read by an image processing apparatus such as a digital copying machine and the read image is divided into blocks composed of a plurality of picture elements. Thereafter, interpolation is performed on a target picture element so that the image is scaled. Then, in the above image processing method, region segmentation data, which represent possibilities of characters, photographs and mesh dots of the target picture element of the image, are detected in a region segmentation section of the image processing apparatus, and the interpolated picture element data of the target picture element are computed by a variable scaling section according to an equation in which density of a plurality of adjacent picture elements in the vicinity of the target picture element are inputted. At this time, a weights of the density of each adjacent picture element in the equation is adjusted based upon the result detected by the region segmentation means.