摘要:
Disclosed is a melanin production inhibitor which has an excellent inhibitory activity on the production of melanin and is highly safe. The melanin production inhibitor is represented by general formula (1) (excluding clotrimazole) and/or a pharmacologically acceptable salt thereof. In the formula, A1, A2 and A3 are independently selected from a hydrogen atom, an aryl group which may have a substituent, and an aromatic heterocyclic group which may have a substituent. At least one of A1, A2 and A3 is selected from the aryl group and the aromatic heterocyclic group, the total number of carbon atoms contained in A1, A2 and A3 is 6 to 50 and, when at least two of A1, A2 and A3 represent the aryl groups or the aromatic heterocyclic groups, the adjacent two aryl or aromatic heterocyclic groups may be bound to each other via an alkyl chain or an alkenyl chain to form a ring; m represents an integer of 0 to 2; X represents a hetero atom, a hydrogen atom, or a carbon atom; R1 and R2 are independently selected from a hydrogen atom and an oxo group. When one of R1 and R2 is an oxo group, the other is not present. R3 is selected from a hydrogen atom, and a C1-8 hydrocarbon group in which one or some of hydrogen atoms or carbon atoms may be substituted by a hetero atom or hetero atoms. The number of R3's present in the compound corresponds to X and, when two or more R3's are present, the R3's are independently present and the adjacent two R3's may be bound to each other to form, together with X, a ring, and the terminal of R3 may be bound to a carbon atom to which A1, A2 and A3 are bound, thereby forming a ring.
摘要:
An open/close control system for an inspection lid adapted not to open while a vehicle travels. An emergency release device is provided behind the inspection lid, where the emergency release device disables power transmission of a driver which opens and closes a side entrance/exit door of a railway vehicle. The emergency release device is installed in a space inside a wall surface inside the vehicle, and the space can be opened and closed by the inspection lid. The open/close control system has a locking device provided in the space inside the wall surface in order to restrict rotation of the inspection lid, and also has an open/close controller which detects traveling of the railway vehicle to actuate the locking device.
摘要:
Each movable contact 15 is given a first force by a drive mechanism along a direction for bringing the movable contact into contact with a fixed contact 5 and given a second force through a leg 14b by deformation of a supporting member 14c resulted from an overtravel of the movable plate 14. The fixed contact and the movable contact are arranged such that a resultant force of the first and the second forces acts in a direction normal to a contact surface defined between the fixed contacts and the movable contacts. So, a component force of the resultant force parallel to the contact surface is not generated, therefore, a side slip of the movable contact can be prevented when the contacts are opened or closed.
摘要:
Each movable contact 15 is given a first force by a drive mechanism along a direction for bringing the movable contact into contact with a fixed contact 5 and given a second force through a leg 14b by deformation of a supporting member 14c resulted from an overtravel of the movable plate 14. The fixed contact and the movable contact are arranged such that a resultant force of the first and the second forces acts in a direction normal to a contact surface defined between the fixed contacts and the movable contacts. So, a component force of the resultant force parallel to the contact surface is not generated, therefore, a side slip of the movable contact can be prevented when the contacts are opened or closed.
摘要:
A contact structure having a spring with electro conductivity. The spring is fixed at one inner end side of a battery housing by engaging a plurality of inflection parts of the spring to one end side of the battery housing. The spring urges the battery to the other end side of a battery housing. An end portion on movable side end of the spring is extended toward an opening on a lateral face of the battery housing. The end portion is formed on a contact side end of the spring that is contacted with the battery, and is connected to one end side of a bypassing lead wire. An end portion on the fixed side end of the spring is connected to the other end side of the bypassing lead wire. The end portion of the fixed side end of the spring is connected to a power source lead wire.