摘要:
A cheap industrial method for making trans-2-bromoindan-1-ol. Trans-2-bromoindan-1-ol represented by Formula (II) is made by hydrolysing 1,2-dibromoindane represented by General Formula (I) (where the configuration of the bromine atoms on position 1 and position 2 can be trans or cis, or it can be a mixture of trans and cis isomers). Trans-2-bromoindan-1-ol represented by Formula (II) can also be made by brominating indene to synthesize 1,2-dibromoindane, and then continuously hydrolysing this 1,2-dibromoindane without isolating it. 1,2-Dibromoindane can also be made by reacting indene with hydrogen bromide in the presence of hydrogen peroxide.
摘要:
The present invention relates to a novel peptide having a pharmacologically useful activity and a producing method thereof. The peptide is prepared by altering a part of amino acids which constitute a peptide having a normal protease inhibitory activity.
摘要:
A magnetic recording medium comprising an undercoat layer formed on one side or both sides of a non-magnetic substrate and a magnetic layer formed on the undercoat layer, characterized in that the undercoat layer contains powders having an average particle size of 0.5 to 5.0 .mu.m and an aspect ratio of 5.0 or more and a magnetic recording medium comprising a magnetic layer formed on a non-magnetic substrate, characterized in that the non-magnetic substrate contains powders having an average particle size of 0.5 to 5.0 .mu.m and an aspect ratio of 5.0 or more.
摘要:
A high-safety constant-speed running apparatus for an automobile which periodically provides an OFF signal for a small time having no effect on driving an actuator. The OFF signal is located in a signal controlling the actuator which is outputted from a micro-computer by a control signal OFF device. Presence or absence of this OFF signal is monitored by a control signal monitor, and when the OFF signal is not detected for a predetermined time or more a determination is made that the micro-computer is abnormal, which drives the actuator in the direction of closing a throttle valve through a throttle close control signal output, and thereby closes the throttle valve when the micro-computer is abnormal. This can reliably return the car to operating based on the driver's commands.
摘要:
A rewritable indication device layer on which visible information is rewritably recorded and erased, is formed on a label base layer. A protection layer for protecting the rewritable indication device layer is formed on the rewritable indication device layer. The rewritable indication label for a recording medium having such structure, is adhered to a recording medium or a recording medium case.
摘要:
A method of manufacturing the useful substance 1-indanone from easily obtainable materials consists of reacting an indanyl ether represented by the generic formula ##STR1## under basic conditions to give a novel substance which is the indenyl ether derivative represented by the generic formula ##STR2## and hydrolyzing this to give the 1-indanone represented by the generic formula ##STR3##
摘要:
The present invention relates to an apparatus for running a car at constant speed, the apparatus controlling the car to run at a desired speed, wherein by a control circuit (21), both a car-speed deviation and an acceleration are taken as variables, and a pulse-width of pulse signals having a predetermined period is computed from a function for defining pulse-width, and the above-mentioned pulse is given to an actuator (12) for adjusting opening of a throttle valve (13), thereby quickening to settle down to a set car-speed, to enable to stably run at constant speed. Moreover, resetting device (9), (220), second constant-speed-running canceling device (11), (219) which cancel a state of constant-speed-running only by operation of a canceling switch (8), (28), and checking device (10) for checking memory data are provided, thereby improving safety and reliability of control.
摘要:
A magnetic recording medium comprising a back coat layer formed on a non-magnetic support on one side which is opposite to a side where a magnetic recording layer is formed. The back coat layer is made of a dispersion of a fluorine-modified organosiloxane in a binder resin. The organosiloxane is of the following formula ##STR1## in which R.sub.1 represents a saturated or unsaturated monohydrocarbon group having from 7 to 21 carbon atoms, R.sub.2 represents a saturated monohydrocarbon group having from 1 to 4 carbon atoms, k is an integer of from 1 to 12, l is an integer of from 2 to 6, m is an integer of 1 or 2, n is an integer of 1 or 2 provided that m+n.ltoreq.3.
摘要翻译:一种磁记录介质,包括在与形成磁记录层的一侧相对的一侧上的非磁性载体上形成的背涂层。 背涂层由粘合剂树脂中的氟改性有机硅氧烷的分散体构成。 有机硅氧烷具有下式(A),其中R 1表示具有7至21个碳原子的饱和或不饱和单烃基,R 2表示具有1至4个碳原子的饱和单烃基,k是 1至12,l是2至6的整数,m是1或2的整数,n是1或2的整数,条件是m + n <3。
摘要:
The present invention is intended to provide novel genes participating in acetic acid tolerance of acetic acid bacteria, and a method of improving acetic acid tolerance of microorganisms, particularly that of acetic acid bacteria by using the genes, further a method of efficiently producing vinegar with acetic acid at higher concentration by using acetic acid bacteria whose acetic acid tolerance is improved. In the present invention, novel genes having a function for improving acetic acid tolerance on practical level were cloned from practical acetic acid bacteria belonging to the genus Gluconacetobacter by a method of obtaining genes from chromosomal DNA library that enable to grow on the medium at a high concentration of acetic acid. Further, in transformants in which the genes were introduced into acetic acid bacteria, acetic acid tolerance was remarkably increased, and when the transformants are subjected to aeration culture in the presence of ethanol, the growth lag-time can be shortened, and the growth rate can also be improved, moreover the final acetic acid concentration can be remarkably improved.
摘要:
A microwave oven and automatic cooking system uses a food package provided with a noncontact IC tag storing information about a food contained in the food package, where the information about the food includes information about a method of heating the food and an amount of heat energy for cooking the food, the information about the amount of heat energy being expressed in a form of an absolute amount of heat energy. The microwave oven receives the food package and cooks the food contained in the food package. The microwave oven includes a reader that reads the information stored in the noncontact IC tag, and a ccontroller that controls the cooking of the food contained in the food package under optimum cooking conditions on the basis of the information read from the noncontact IC tag by the reader, the controller being programmed to automatically set an absolute amount of heat energy to be provided by the microwave oven on the basis of the information read by the reader, and set a heating time in accordance with an output capacity of the microwave oven and a type of the microwave oven so that the absolute amount of heat energy from the microwave oven conforms with the absolute amount of heat energy information read from the noncontact IC tag.