摘要:
A supercharged internal combustion engine is provided with a double-link type piston crank mechanism connecting between a piston and a crankshaft. The piston crank mechanism causes the piston to move at a speed which is smaller around a top dead center (TDC) and larger around a bottom dead center (BDC) as compared with respective corresponding piston speeds attained by a comparable single-link type piston crank mechanism. The double-link type piston crank mechanism variably controls a compression ratio by varying an angular position of one of links constituting the piston crank mechanism.
摘要:
A variable compression ratio mechanism for a reciprocating engine includes a connecting rod split into upper and lower connecting rod portions linked to each other through a first connecting pin. A rockable arm is oscillatingly linked at one end to the lower connecting rod portion through a second connecting pin. A control mechanism shifts the center of oscillating motion of the rockable arm to vary a compression ratio of the engine. A piston stroke is set to be greater than two times a crank radius of a crank, irrespective of variations in the compression ratio. A linkage is dimensioned and laid out, so that its crankpin load is less than a crankpin load produced by a linkage that the crankpin is located on a perpendicular line at substantially the midpoint of a line segment between and including the centers of the first and second connecting pins.
摘要:
A variable compression-ratio, multiple-link type reciprocating internal combustion engine has at least three links, namely an upper link, a lower link and a third link, for each engine cylinder. The upper link is connected to a piston pin, the lower link connects the upper link to a crank pin, and the third link is pivoted at one end to a body of the engine and connected at its other end to either of the upper and lower links to permit oscillating motion of the third link on the engine body. The upper link, the lower link, and the third link are dimensioned and laid out, so that the amplitude of a second-order vibration component of a vibrating system of reciprocating motion of the piston, synchronizing rotary motion of the crankshaft, is suppressed and reduced to below a predetermined threshold value, while realizing the same piston stroke and engine-cylinder height as a single-link type reciprocating internal combustion engine in which a piston pin and a crank pin are connected to each other by a single link.
摘要:
According to one embodiment, an image processing apparatus includes: a reduction module configured to reduce image data that is input to output reduced data; an extraction module configured to extract a diffuse reflection component from the reduced data; an enlargement module configured to enlarge the diffuse reflection component to a size before reduction of the input image data to output enlarged data; a high-frequency acquisition module configured to acquire a high-frequency component removed by reduction from difference between the input image data and the reduced data; a high-frequency addition module configured to output first data obtained by adding the high-frequency component acquired to the enlarged data; and a gloss component acquisition module configured to acquire a gloss component from difference between the input image data and the first data.
摘要:
A knitting structure model generation program, apparatus and method are provided to generate a three-dimensional model of a warp knit to reproduce a realistic knitting structure. An initial model generation portion (160) generates in a virtual three-dimensional space an initial model of a warp knit representing one column of yarn path in a warp direction and array information representing an array position in a weft direction of one column of yarn path. A position correction portion (170) sets mass points of a yarn on the yarn path, generates a dynamic model of the warp knit by connecting the mass points, and corrects the position of each mass point. A three-dimensional model generation portion (180) forms a surface expressing a yarn surface on a yarn path represented by the edge connected to the mass points whose positions are corrected, and thereby generates a three-dimensional model of the warp knit.
摘要:
A pressure-sensitive adhesive layer of pressure-sensitive adhesive sheet is formed by using: a pressure-sensitive adhesive composition comprising (A) a polyrotaxane having a linear-chain molecule passing through opening portions of at least two cyclic molecules, the cyclic molecules having a reactive group, the polyrotaxane having blocking groups at both ends of the linear-chain molecule, and (B) a pressure-sensitive adhesive polymer having two or more functional groups capable of reacting with the reactive group; or, a pressure-sensitive adhesive composition comprising (A) a polyrotaxane having a linear-chain molecule passing through opening portions of at least two cyclic molecules, the cyclic molecules having a reactive group, the polyrotaxane having blocking groups at both ends of the linear-chain molecule, (B′) a pressure-sensitive adhesive polymer having two or more reactive groups, and (C) a compound having two or more functional groups capable of reacting with the reactive group of the polyrotaxane (A) and the reactive groups of the polymer (B′). As a result there can be provided a pressure-sensitive adhesive sheet comprising a pressure-sensitive adhesive layer excellent in flexibility and having high gel fraction and durability, and a pressure-sensitive adhesive composition that constitutes the pressure-sensitive adhesive layer.
摘要:
A biodegradable biopolymer material consists of silk fibroin from domesticated silkworm; silk fibroin from wild silkworm; a composite material comprising silk fibroin from domesticated silkworm and silk fibroin from wild silkworm; or a composite material comprising either silk fibroin from domesticated silkworm or silk fibroin from wild silkworm and at least one secondary substance selected from the group consisting of cellulose, chitin, chitosan, chitosan derivatives, keratin from wool and polyvinyl alcohol. The material may be prepared by, for instance, casting an aqueous solution of domesticated silkworm silk fibroin on the surface of a substrate and then cast drying the applied solution. The biodegradable biopolymer material is effectively used as, for instance, a metal ion-adsorbing material, a sustained release substrate for a useful substance such as a medicine, a biological cell-growth substrate and a biodegradable water-absorbing material.
摘要:
There are disclosed a silicone rubber based pressure sensitive adhesive sheet comprising a transparent substrate film and a silicone rubber layer which is formed by coating the surface of the transparent substrate film with silicone rubber in an amount of 5 to 100 g/m2 (after drying) containing addition type organopolysiloxane composed of organopolysiloxane having a siloxane bond as a principal skeleton and bearing an alkenyl group and of organohydrogenpolysiloxane, the silicone rubber further containing 0.01 to 3.0 parts by mass of a platinum catalyst based on 100 parts by mass of the addition type organopolysiloxane, and then by curing the resultant coating, and which has adhesion for float glass in accordance with JIS Z 0237 being in the range of 10 to 1000 mN/25 mm, holding power (load of one kg) of at least 24 hours and a 100% modulus in the range of 0.3 to 1.5 MPa. The resultant silicone rubber based pressure sensitive adhesive sheet is imparted with strong holding power, sufficient adhesiveness to the substrate film and sufficient removability from an adherend enabling repeated sticking even if an additive such as an adhesion improving agent is not blended, and at the same time which makes it possible to use as a releasing film, an inexpensive film not subjected to a releasing treatment.
摘要翻译:公开了一种硅橡胶基压敏粘合片,其包括透明基底膜和硅橡胶层,该硅橡胶层通过以5至100g / m 2的量用硅橡胶涂覆透明基底膜的表面而形成 (干燥后)含有由硅氧烷键作为主骨架并具有烯基的有机聚硅氧烷和有机氢聚硅氧烷构成的加成型有机聚硅氧烷,该硅橡胶还含有0.01〜3.0质量份的铂催化剂,基于100 加成型有机聚硅氧烷质量份,然后固化所得涂层,并且根据JIS Z 0237具有的浮法玻璃粘合力在10至1000mN / 25mm的范围内,保持力(负荷1kg )为至少24小时,100%模量为0.3〜1.5MPa。 所得到的硅橡胶基压敏粘合片具有很强的保持力,对基材膜具有足够的粘附性,并且即使不掺入添加剂如粘合改进剂也能够反复粘贴的被粘附体的足够的可除去性,同时 这使得可以用作脱模膜,不经受脱模处理的廉价膜。
摘要:
Provided in the present invention are an image pickup lens and a design method thereof which can achieve miniaturization of the system and capable of remarkably improving the optical characteristic with a simple structure. By forming a second face on the image pickup surface side of a lens body into a Fresnel face and unifying a diffraction element with at least a first face on the object face side or the second face on the image pickup surface side of the lens body, it becomes possible to correct the Petzval sum and reduce the curvature of the field so that an excellent image plane can be obtained. Also, due to the color dispersion characteristic of the diffraction element, chromatic aberration can be well corrected. Thereby, the optical characteristic of the image pickup lens can be remarkably improved.
摘要:
Provided are a CVD system and a CVD process which can grow excellent compound semiconductor thin films of two or more components having least defects and which enjoy high source gas utilization efficiency and increased productivity. According to the CVD system and the CVD process, at least two kinds of source gases are introduced parallel to the surface of a substrate 11 placed in a reactor 10 to grow a compound semiconductor thin film of two or more components on the surface of the substrate 11. The CVD system contains two separators 18, 19 disposed in the reactor 10 on the upstream side of the substrate mounting section to be parallel to the surface of the substrate 11 so as to define in the reactor three parallel layers of passages consisting of a first passage 20, a second passage 21 and a third passage 22; a first CVD gas introducing pipe 23 communicating to the first passage 20; a second CVD gas introducing pipe 24 communicating to the second passage 21; and a deposition accelerating gas introducing pipe 25 communicating to the third passage 22.