Abstract: A surgical ink is suitable for medical devices that ensure safety in accordance with the sterilization validation and can be widely distributed on the market, and has biocompatibility and writing property, and a surgical pen has good writing convenience. A surgical pen having radiation resistance includes: a cylindrical shaft body portion having a storage part for a surgical ink; and a pen tip portion for discharging the ink at a distal end of the shaft body portion, and the pen tip portion is made of a synthetic resin, and has a bending strength of 1.0 N or more after irradiation with ?-rays of 25 kGy to 70 kGy.

Abstract: A data collection apparatus, including: a data reception part that receives sensor data from a vehicle capable of photographing a road surface, the sensor data being acquired by a sensor mounted on the vehicle; and a control part that evaluates a goodness degree of a road surface photographing environment on a basis of the sensor data and control a transmission from the vehicle of a road surface photographed image on a basis of the goodness degree of the road surface photographing environment.

Abstract: A partition plate for multiple-stage adsorption separator includes a planar body member having opposing external surfaces and a peripheral edge with conduits providing fluid communication between the opposing surfaces and different points on the peripheral edge. Each of the opposing surfaces is provided with a peripheral rim and covered with a perforated plate whereby an open chamber is defined between the body member and a perforated plate at each of the external faces.

Abstract: An adsorbent is charged into a horizontal type packed column having a multiplicity of packed vessels each of which is composed of a partition plate and a cylindrical body and which are connected through the partition plates, from an opening formed on the upper wall of each cylindrical body. Then, each opening is closed tightly with a detachable plug cover. The partition plate is provided with a first fluid passage through which a fluid is passed in the direction of the axis of the cylindrical body and a second fluid passage which is in communication with the first fluid passage, which extends toward the peripheral wall of the cylindrical body and which opens at the cylindrical body. This apparatus is suitable for use as a multiple-stage adsorption separator directed to a simulated moving-bed system.