Abstract: An apparatus includes a developer container to and from which a replenishment container is attachable and detachable and which includes an accommodating portion and a replenishment port, a transfer portion configured to transfer a developer image on an image bearing member onto a recording material, a supporting tray including a supporting surface configured to support the recording material thereon, and a discharge portion configured to discharge the recording material, onto which the developer image has been transferred, on the supporting surface, wherein the supporting surface has an opening portion opening such that the replenishment port is exposed through the supporting surface, and wherein an opening/closing member configured to be movable between a closed position where the opening/closing member covers the replenishment port and serves as a part of the supporting surface and an open position where the replenishment port is exposed is provided.

Abstract: A fast reactor comprises a reactor vessel to be arranged vertically in a reactor building, a reactor vessel upper structure disposed on an upper portion in the reactor vessel, a drum structure suspended from the reactor vessel structure into a central portion in the reactor vessel so as to define an annular portion between an outer periphery of the drum structure and an inner periphery of the reactor vessel, and a reactor core disposed in the drum structure. A reflector is disposed in the reactor vessel and is vertically movable along an outer periphery of the reactor core. The reflector may be composed of grain materials movable by gravity. An intermediate heat exchanger is further disposed at a portion above the reactor core and an electromagnetic pump is disposed in the reactor vessel for circulating coolant. The reactivity of the reactor core can be controlled by the reflector to thereby reduce the neutron irradiation amount to the reactor vessel.

Abstract: A method is provided for fractionating an oil to separate high melting components thereof, which comprises the steps of:(a) adjusting the temperature of an oil or fat to a temperature from the complete melting point to thirty Celsius degrees above the slip melting point of the oil or fat;(b) seeding the temperature-adjusted oil or fat with seed crystals of the high melting point components of said oil or fat;(c) cooling said seeded oil or fat below said temperature to crystallize said high melting point components; and(d) separating the crystals of said high melting point components from the slurry obtained in step (c).

Abstract: Hemi-alkali metal salts of 2-pyrrolidone-5-carboxylic acid, believed to have the formula: ##SPC1##Wherein Me is an alkali metal, is formed by reaction of 0.75 to 0.99 moles of an alkali metal hydroxide per mole of 2-pyrrolidone-5-carboxylic acid.