摘要:
Processes for producing an aromatic/aliphatic copolycarbonate which has excellent impact resistance, excellent heat resistance, a high Abbe's number, a low photoelastic coefficient, and an excellent color tone. The processes include those in which: an aromatic/aliphatic copolycarbonate having a nitrogen content of 9 ppm or lower is produced from an aliphatic dihydroxy compound having a nitrogen content of 10 ppm or lower; an aromatic/aliphatic copolycarbonate is produced from an aliphatic dihydroxy compound having an iron content of 1 ppm or lower; an aromatic/aliphatic copolycarbonate is produced from an aliphatic dihydroxy compound having a content of aldehyde groups and/or formyl groups of 100 ppm or lower; an aromatic/aliphatic copolycarbonate is produced by subjecting an aromatic dihydroxy compound and an aliphatic dihydroxy compound having a content of free chlorine of 5 ppm or lower to polycondensation with heating and melting; and an aromatic/aliphatic copolycarbonate is produced from an aliphatic dihydroxy compound which has a melt Hazen unit of 40 or smaller after having been maintained at 260° C. for 5 hours in the air.
摘要:
Aldehyde compounds contained in polycyclic diols as impurities are effectively removed by distilling the polycyclic diols in the presence of an alkali metal compound and/or a alkaline earth compound. The distilled polycyclic diols are useful as a diol component of a polymer such as polycarbonate with less yellowing.
摘要:
An electronic device includes: an operation receiving unit to receive operation from a user; a sensor to sense the user existing in a detection range of the electronic device to output detection information indicating that the user exists in the detection range; and processing circuitry to output content for assisting the user in operating the electronic device, when the processing circuitry has determined that the user exists in the detection range based on the detection information and when an elapsed time in which the operation of the user is not received at the operation receiving unit has exceeded a threshold time.
摘要:
An information processing apparatus includes a provider identification information acquiring unit that acquires a piece of provider identification information for each of a plurality of devices that cooperatively execute a plurality of functions, based on device identification information of the device, the piece of provider identification information allowing identification of whether a provider of the device is a predetermined provider as a provider of a cooperating function; a determining unit that determines whether a non predetermined-provider device provided by a provider other than the predetermined provider exists among the devices based on pieces of the provider identification information; a charge processing unit that performs charge processing to profit the predetermined provider when the non predetermined-provider device exists; and a cooperation controlling unit that controls the devices to cooperatively execute the functions based on the cooperating function.
摘要:
A roll for a hot-dip metal coating bath has a substantially cylindrical shape. At least an outer peripheral surface of the roll is formed of a ceramic material. A relatively coarse groove is formed on the outer peripheral surface of the roll in a direction crossing the rotation axis. A plurality of relatively fine grooves is formed in the bottom surface of the coarse groove along the longitudinal direction of the coarse groove. In place of the fine grooves extending in the longitudinal direction of the coarse groove, a plurality of rows of fine grooves may be formed along the crosswise direction of the coarse groove.
摘要:
A communication terminal includes: a first receiving unit configured to receive a communication signal in a first communication system; a second receiving unit configured to receive a communication signal in a second communication system; a position information obtaining unit configured to obtain position information of a user; a mode determination unit configured to activate the second receiving unit if the position information obtaining unit obtains position information of the user in a case where the first receiving unit cannot receive a communication signal; and a user interface unit configured to provide the user with warning information extracted from the communication signal received by the second receiving unit.
摘要:
Each of first and second material substrates made of single crystal silicon carbide has first and second back surfaces, first and second side surfaces, and first and second front surfaces. The first and second back surfaces are connected to a supporting portion. The first and second side surfaces face each other with a gap interposed therebetween, the gap having an opening between the first and second front surfaces. A closing portion for closing the gap over the opening is formed. A connecting portion for closing the opening is formed by depositing a sublimate from the first and second side surfaces onto the closing portion. The closing portion is removed. A silicon carbide single crystal is grown on the first and second front surfaces.
摘要:
A color processing apparatus includes the following elements. A point group generator generates a point group existing in a color gamut of an output apparatus. A design point group extracting unit extracts, from the point group, a design point group that satisfies predetermined design conditions. A corresponding point group setting unit sets, on the basis of the design point group, a corresponding point group indicating a boundary of a color gamut represented by the design point group, such that points of the corresponding point group are associated with individual points of a boundary point group existing on a boundary of the color gamut of the output apparatus. A design color gamut boundary generator generates a boundary of a design color gamut that satisfies the predetermined design conditions, by using a set of the boundary point group and the corresponding point group.
摘要:
An SiC substrate includes the steps of preparing a base substrate having a main surface and made of SiC, washing the main surface using a first alkaline solution, and washing the main surface using a second alkaline solution after the step of washing with the first alkaline solution. The SiC substrate has the main surface, and an average of residues on the main surface are equal to or larger than 0.2 and smaller than 200 in number.
摘要:
A communication terminal includes a receiver that receives a one-segment signal from a broadcasting station among plural broadcasting stations that provide terrestrial digital broadcasting, an output unit that outputs the one-segment signal received by the receiver to a user; a channel search unit that searches for a specific broadcasting station that transmits the one-segment signal including an auxiliary information signal which is likely to include warning information, among the one-segment signals which are transmitted from the corresponding broadcasting stations, and a determination unit that determines, subsequent to termination of viewing with respect to the broadcasting station which is selected by the user, whether the auxiliary information signal included in the one-segment signal received from the specific broadcasting station by the receiver includes the warning information. When the auxiliary information signal includes the warning information, the output unit outputs the warning information to the user.