摘要:
A grinding apparatus for grinding a spline ball groove on a workpiece comprises a rod-shaped grindstone, having a distal end portion with a curved surface corresponding to the groove to be ground, and a spindle mechanism for rotating the grindstone. The spindle mechanism and the grindstone are supported by means of a supporter in a manner such that they are inclined at a given angle to an axis of the workpiece. A rotary dresser, which has a dress groove corresponding to the curved surface of the distal end portion of the grindstone, is disposed near the grinding apparatus. The grindstone can be reciprocated along the axis of the workpiece by a drive mechanism between the workpiece and the dresser without changing its angle of inclination.
摘要:
A high voltage MOSFET device (100) has a well region (113) with two areas. The first area (110) has a high dopant concentration and the second area (112) has a low dopant concentration. Inside the well region a region of a secondary conductivity type (108) is formed. The second area (110) is typically underlying a gate region (105). The lower doping concentration in that area helps to increase the breakdown voltage when the semiconductor device is blocking voltage and helps to decrease the on-resistance when the semiconductor device is in the “on” state. The MOSFET device further has a p-top layer (108) which is disposed on the top surface of the well region and then driven into the well region by annealing the MOSFET device at a high temperature in an inert atmosphere.
摘要:
A method of reading a bar code having guard bars at both sides thereof without fail even if the bar code image is highly distorted. An image region taken in by a CCD camera is scanned in horizontal and/or vertical directions to find out a first guard bar in the bar code. Then, a first scanning line for reading the bar code is set in a direction perpendicular to the first guard bar. The bar code is scanned along the first scanning line. If the first scanning line goes out of the bar code region, the first scanning line is traced back to a bar which is last read. Another scanning line starting from the last read bar and extending perpendicularly thereto is set to read the rest of the bar code. This process is repeated until the second guard bar is detected and a whole bar code is completely read. The first scanning line may be set, so that it only reads a predetermined number of bars and the rest of the bar code is read by new scanning lines starting from the last read bar. Alternatively, the bar code region is searched by preliminarily scanning the image region divided into plural rectangular sections. The bar code region is determined based on the number of brightness changes in each divided section. The first guard bar in the bar code can be easily found in this manner.
摘要:
A lower leg protection garment is compressingly worn on the surface of a human body, having a tube-like shape from the vicinity of the region just below the knee joint to the vicinity of the ankle. The garment has a portion with a strong straining force which covers at least a part of tuber calcaneus across the sole and extends to the vicinity of the region just below the knee joint covering at least a part of the both sides of the lower leg region, and a portion with a weak straining force in the portion at least one third of the area of the portion having the tube-like shape below the knee joint, reinforcing the lower leg region to provide protection against the ankle sprain or recurrence thereof, enabling anyone to wear appropriately to the proper orientation without skill, providing good wearing comfort.
摘要:
Adjustment is made of the position of a marine transportation system including a boat having a drive, a trimmable port tab and a trimmable starboard tab. The operation of the marine transportation system is monitored to provide an output distinguishing boat operation in an on-plane condition and boat operation in an off-plane condition, to provide an output distinguishing boat travel in a straight forward condition and boat travel in a turning condition and to provide an output distinguishing boat operation in a first heel condition in which the boat tilts to port and boat operation in a second heel condition in which the boat tilts to starboard. The port and starboard tabs are positioned at desired positions in response to the outputs. According to the embodiment, a heel adjustment operation of the boat is carried out during boat operation in an on-plane straight forward travel condition, only.
摘要:
Disclosed is an electronic magnetic compass which is to be mounted on a small ship and which is reduced in cost and improved in performance. The electronic magnetic compass is provided with an angle sensor interlocked with a compass card so as to produce a code signal at every predetermined angle, a code converter for converting the code signal into a compass indication angle, and a signal conversion circuit for producing a deviation signal indicating a deviation between an azimuth angle signal and an indication angle signal. The compass azimuth measurement is performed with a simple configuration of an open loop system, so that the structure of an encoder for the angle sensor is so simple that the cost can be reduced so much. The azimuth angle signal and the indication angle signal can be automatically calibrated so that the measurement accuracy can be improved.
摘要:
A comapct zoom lens system for video camera is provided which comprises from the object side to the image side; a first lens group of a positive refractive power fixed on the optical axis of the lens system; a second group of a negative refractive power shiftable along the optical axis in the zooming operation; a third lens group of a negative refractive power shiftable in the zooming operation and in the focusing operation; a fourth lens group of a positive refractive power fixed on the optical axis and consisting of at most two positive lens components; an aperture diaphragm; and a fifth lens group including, a front lens unit consisting of a positive lens component having a stronger refractive surface on the object side and a negative lens component having a stronger refractive surface on the object side, and a rear lens unit of a positive refractive power consisting of a positive lens component, a negative meniscus lens component having an objective side surface convex to the object side and a positive lens component having a stronger refractive surface on the object side.
摘要:
Novel organic compounds useful as a component of liquid crystal compositions are provided which compounds are 5-substituted-2-(4'-substituted biphenylyl)pyrimidines and 5-substituted-2-[4'-(trans-4"-substituted cyclohexyl) phenyl]pyrimidines expressed by the general formula ##STR1## wherein R.sub.1 and R.sub.2 each represent an alkyl group or an alkyloxy group having 1 to 10 carbon atoms and ##STR2## represents cyclohexane ring or benzene ring.
摘要:
A garment is provided with a main part which consists of a front body section, a back body section and sleeves extending from front and back body sections toward both arm sides over shoulders, and a pair of first tightening parts separately placed in right and left areas located at the positions of right and left deltoid muscles covering the boundary of the wearer's shoulder and upper arm in the back side, wherein the front and back body sections and the upper arm sections of the sleeves comprise at least two kinds of stretch materials, which differ in stretchability from each other, including a material for the main part and a material for the first tightening parts having a lower stretchability than the main part.
摘要:
A polymer represented by Formula (7): wherein all variables are defined in the specification, including P1 which is a polymer chain obtained by polymerizing an addition-polymerizable monomer, which makes it possible to control the structure of the polymer as a molecular aggregate.