摘要:
The optical resolution of DL-pantolactone is effected by reacting DL-pantolactone or its alkali salt derived therefrom, respectively, with an optically active N-substituted aminophenylpropanol of the general formula: ##STR1## wherein R.sub.1 is a phenyl group which may be substituted and R.sub.2 is an aralkyl group in which the benzene ring may bear a substituent, or its mineral acid addition salt; separating the resulting diastereomers by the aid of difference in their dissolubility; and decomposing them to give the corresponding optical antipodes. This method can provide the antipodes in high purity and yield and can be carried out with ease.
摘要:
An osteotomy assistance kit includes a bone treatment assistance device and an attaching position confirmation device. The attaching position confirmation device includes a feature point indication rod to be applied via a tip portion to a feature point of the bone, a rod support unit that removably supports the feature point indication rod such that the tip portion is indicating the feature point of the bone, and a second support member that movably supports the rod support unit and indicates one of scales on the rod support unit. The bone treatment assistance device includes cutting slits, and first guide holes that guides first rods set to a predetermined positional relation. The second support member of the attaching position confirmation device is attached to the protrusion of the bone treatment assistance device.
摘要:
A manufacturing method of a bone cutting assist device includes generating a bone cutting assist device model representing the bone cutting assist device including a fitting surface that fits a surface of a bone model, a cutting slit that guides a cutting jig, a first guide hole for inserting a first rod model, and second guide holes for inserting second rod models. The manufacturing method also includes outputting three-dimensional manufacturing data representing the generated bone cutting assist device model, and manufacturing the bone cutting assist device according to the outputted three-dimensional manufacturing data.
摘要:
The present invention provides a lubricating oil comprising an alicyclic compound represented by a general formula (I): wherein n is an integer of 0 or 1; one of R1 and R2 represents —CH2OR4 (wherein R4 represents a carboxylic acid residue) while the other one represents alkyl, lower alkyl-substituted or unsubstituted cycloalkyl, aryl, or aralkyl; and R3 represents —CH2OR5 (wherein R5 represents a carboxylic residue) and the like. The lubricating oil of the present invention has an excellent traction coefficient, excellent heat resistance, or the like. For the lubricating oil of the present invention, the alicyclic compound represented by the general formula (I) can be directly used as it is, and other base oils such as ester oil, poly-α-olefin, mineral oil, or silicone oil may be included therein, if necessary.
摘要翻译:本发明提供一种润滑油,其含有通式(I)表示的脂环族化合物:其中n为0或1的整数; R 1和R 2之一表示-CH 2 OR 4(其中R 4表示羧酸残基),而另一个表示烷基,低级烷基取代或未取代的环烷基,芳基或芳烷基; 和R 3表示-CH 2 OR 5(其中R 5表示羧基残基)等。 本发明的润滑油具有优异的牵引系数,优异的耐热性等。 对于本发明的润滑油,可以直接使用由通式(I)表示的脂环族化合物,其它基油如酯油,聚-α-烯烃,矿物油或硅油可以 如果有必要的话。
摘要:
In order to melt snow and prevent freezing without consuming energy wastefully and to monitor a road surface state remotely, a road surface sensor includes: a rotating stand provided so as to be reciprocatingly rotatable upward on the road surface; a snow-melting/freezing heat quantity measurement dummy road surface having an electric heater buried therein and to use as a reference road surface for heat quantity measurement to derive a melting heat quantity for snow falling on the surface and a heat quantity required for freezing prevention; a reference light irradiating/reflected light receiving device that is attached so as to be rotatable with the rotating stand; a space reflected light receiving device; a non-contact road temperature measuring device; a non-contact snow cover depth measuring device; a road surface image pickup device; and a moisture sensor. The reference light irradiating/reflected light receiving device includes a reference light irradiating device for irradiating reference light and a reflected light receiving device for receiving reflected light of the reference light from the road surface, and the reflected light receiving device separates and receives only reflected light of the reference light out of the reflected light from the road surface.
摘要:
Plural pictures recorded on an optical film are read, in frame units, by a scanner 11 to convert them into electric picture data to store those picture data into a main memory 21. A memory control section 2 controls read-out and write-in operations of the picture data obtained from the scanner 11 with respect to the main memory 21. Further, the memory control section 2 controls the write-in and read-out operations of the picture data to thereby obtain inverted picture data in which (relative position of) the picture data is inverted in regard to upper and lower directions thereof. A system control section 5 controls the memory control section 2 in accordance with inverting command from a keyboard 6 so as to obtain inverted picture data. Since the write-in or read-out operation of the picture data with respect to the main memory 21 is controlled by the system control section 5 so as to invert (relative position of) picture data in regard to upper and lower directions thereof in accordance with the inverting command from the keyboard 6, in the case where inverted picture in which the upside is turned down is displayed on a display section 7, the inverting command is given, thereby making it possible to display, on the display section 7, erecting (normally standing) pictures of respective frames in which relative position in regard to upper and lower directions is inverted, and to record the erecting pictures of respective frames onto a recording medium by a disc drive 42.
摘要:
The digital signal recording apparatus of the invention for recording a video signal on a recording medium, includes: a mode setting section for setting a recording mode, the recording mode being one of a standard recording mode and a long-time recording mode having a longer recording time than that of the standard recording mode; a sampling section for sampling the video signal at a sampling number corresponding to the recording mode set by the mode setting section, the sampling number when the selected recording mode is the long-time recording mode being smaller than the sampling number when the selected recording mode is the standard recording mode; a coding section for coding the video signal sampled by the sampling section at a compression rate corresponding to the recording mode set by the mode setting section, the compression rate when the selected recording mode is the long-time recording mode being higher than the compression rate when the selected recording mode is the standard recording mode; and a recording section for recording the video signal coded by the coding section on a recording medium.
摘要:
Using a mobile display having ordinary degree of resolution which is directly held by a user's hand or supported by a supporter, a three-dimensional virtual world is projected on a two-dimensional plane while varying the positional relations between the viewpoint and the image plane according to the position and orientation of the mobile display, and the resulting two-dimensional image is displayed on the mobile display and presented to the user.
摘要:
A pilot signal is superposed and recorded on data at the beginning of each track. The beginning portion of the track is constituted only of codewords having a disparity of each 10 bits which is +2, 0 or -2. Also, the cumulative value of the disparities of every 10 bits may fluctuate in a period coinciding with the period of the pilot signal to be superposed. Therefore, the frequency spectrum in the beginning part of the track has a peak at the frequency of pilot signal, and using this peak as the pilot signal, tracking is controlled during reproduction.
摘要:
There is disclosed a process for producing L-alanine by reacting in a single reaction tank, in an aqueous reaction mixture having a pH of 6 to 10 and containing at least one .alpha.-keto acid, fumaric acid or a salt thereof with ammonia or ammonium ions in the presence of two microorganisms having fumarase inactivity.