摘要:
An image processing apparatus includes a storing section which stores data of a digital image, a rotation processing section which generates a plurality of rotated digital images having different rotation angles from the digital image, an image processing section which generates a plurality of image-processed digital images from the rotated digital images, a reverse processing section which generates a plurality of reversed digital images from the image-processed digital images, and a combining section which combines the reversed digital images into one digital image.
摘要:
An aluminum nitride sintered body is provided, including a polycrystalline structure in which grain boundary fracture toughness KICgb is 1.6 MPa·m1/2 or more. The grain boundary fracture toughness KICgb is determined by the equation KICgb=KIC·cos2(π·PIF/200), wherein KIC is fracture toughness (MPa·m1/2), and PIF is a percentage of the intergranular fracture (%).
摘要翻译:提供了一种氮化铝烧结体,其包括其晶界断裂韧性K u> u>> b>>为1.6MPa.m 1/2的多晶结构, 或者更多。 晶界断裂韧性K IC b b>>>> IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC (pi.PIF / 200),其中K是断裂韧性(MPa.m <0.01) ,PIF是晶间骨折的百分比(%)。
摘要:
A seed crystal is formed of a rod-like aluminum nitride single crystal whose length direction is oriented to the c-axis direction. Exposed surface on the side portion thereof on which an aluminum nitride material is grown into a crystal has an inclination of 90° relative to a {0001} surface. With this configuration, an aluminum nitride single crystal with excellent crystallinity can be manufactured.
摘要:
There is provided a method for manufacturing an aluminum nitride single crystal, the method including the steps of: preparing a raw material composition containing: aluminum oxide and/or an aluminum oxide precursor which is converted into aluminum oxide by heating, and aluminum nitride and/or an aluminum nitride precursor which is converted into aluminum nitride by heating; heating the raw material composition at 1600 to 2400° C. to synthesize aluminum nitride; and causing crystal growth of the aluminum nitride to obtain an aluminum nitride single crystal. The method is capable of obtaining an aluminum nitride single crystal which is sufficiently large for practical use at low cost in a short time and has high productivity and wide usability.
摘要:
The present invention relates to an optically active .alpha.-substituted carboxylic acid derivative represented by the general formula (I): ##STR1## (wherein R.sub.1 is a hydroxyl group, ##STR2## R.sub.2 is a methyl group or a chlorine atom; R.sub.3 is a hydrogen atom or an alkyl group with 1-6 carbon atoms; n is an integer of 1 or 2; and * represents an asymmetric carbon atom, provided that R.sub.2 is a chlorine atom when R.sub.1 is a hydroxyl group); and a method for producing the optically active .alpha.-substituted carboxylic acid derivative represented by the general formula (I) and antipodes thereof using a culture, cells or a material obtainable from cells of a microorganism having an ability to asymmetrically hydrolyze ester bonds. The optically active .alpha.-substituted carboxylic acid derivatives and antipodes thereof provided by the invention are useful as raw materials for various liquid crystals and as synthetic intermediates for various optically active medicines or agricultural chemicals.