摘要:
A process for producing calcium silicate of the rational formula 2CaO.3SiO.sub.2.nSiO.sub.2.mH.sub.2 O wherein m is a number of more than 0, and n is a number of 0.1 to 10 from a silicate compound and a calcium compound, which comprises contacting a water-soluble silicate compound with a calcium compound in an aqueous medium, and heating them to a temperature of 150.degree. to 250.degree. C., the amount of the aqueous medium being 5 to 100 times the weight of the calcium silicate obtained, and a process for producing calcium silicate or a calcium silicate-gypsum composite, which comprises adding a water-soluble silicate or its aqueous solution gradually to an aqueous suspension of gypsum, and heating the mixture to a temperature of 150.degree. to 250.degree. C. The calcium silicate and the calcium silicate-gypsum composite, which have a structure composed of an assembly of petal-like flakes, are useful as an adsorbent carrier, a delusterant or a filtration aid.
摘要:
Disclosed is a liquid-absorbing shaped body comprising a fibrous material and an inorganic powder in which the volume of fine pores having a pore radius less than 0.5.mu. is at least 2.5 cc/g. This shaped body is excellent in the liquid-absorbing capacity and liquid-retaining property to various kinds of liquids.
摘要:
Disclosed is an alkali calcium silicate having two different X-ray diffraction patterns: (1) with diffraction peaks at spacings (d) of 11.8-12.2 A, 6 A and 3 A or (2) with diffraction peaks at spacings (d) of 13.0-13.4 A, 6.7 A and 3.1 A. This silicate is in the fibrous or micaceous form and is valuable as a drying agent or an ion exchange agent. This silicate is prepared by hydrothermal reaction of an aqueous suspension having a specific composition of the starting components.
摘要:
Disclosed is an alkali calcium silicate having two different X-ray diffraction patterns (1) with diffraction peaks at spacings (d) of 11.8-12.2 A, 6 A and 3 A or (2) with diffraction peaks at spacings (d) of 13.0-13.4 A, 6.7 A and 3.1 A. This silicate is in the fibrous or micaceous form and is valuable as a drying agent or an ion exchange agent. This silicate is prepared by hydrothermal reaction of an aqueous suspension having a specific composition of the starting components.
摘要:
A process of producing ketone condensation products which comprises condensing at a temperature of from 60.degree. to 300.degree.C. a ketone having 3-19 carbon atoms in the presence of, as a catalyst, at least one metal phosphate selected from titanium phosphate, zirconium phosphate, hafnium phosphate, and tin phosphate; dimeric condensation or trimeric condensation can be achieved depending upon the reaction conditions.
摘要:
Provided is an image editing device that enables a user to easily assign images to a plurality of pages of an album or the like so as to satisfy editorial restrictions. The image editing device acquires a plurality of pieces of image data; determines, based on respective photographed times of the plurality of pieces of image data and a reference time interval, details of an assignment of the plurality of pieces of image data to each of the plurality of pages so that an interval between photographed times of pieces of image data to be assigned to the each of the plurality of pages is the reference time interval or smaller; and outputs image output data on the each of the plurality of pages based on a result of the assignment.
摘要:
The disclosed is an arteriosclerosis evaluating apparatus capable of easily separating pulse wave data detected at one measurement site into an incident wave and a reflected wave and capable of easily determining and evaluating the degree of arteriosclerosis. The pulse wave transmitted through an artery is detected at one site of a living body by a pulse wave detection device, and the detected pulse wave is fitted with a fitting function by a breakdown device so that the detected pulse wave can be broken down into an incident wave and a reflected wave. The degree of arteriosclerosis is evaluated from the amplitude intensities (i.e., peak intensities) of the incident wave and the reflected wave broken down from the pulse wave.
摘要:
A recording apparatus includes a platen that guides a sheet, restraining members disposed on the platen at respective side edges of the sheet to restrain the side edges of the sheet from being raised, a sheet width detector that detects the width of the sheet, and a restraining member detector that detects the positions of the restraining members. At least one of the restraining members is moved in accordance with the information obtained by the sheet width detector regarding the positions of the side edges of the sheet and the information obtained by the restraining position detector regarding the positions of the restraining members.
摘要:
An apparatus control system. apparatus and computer-readable recording medium for enabling different operators to perform apparatus and network settings independently and to easily confirm a setting status. An apparatus setter at least one of a setting on a connection between a water heater and a remote controller, and a test run of the water heater using the remote controller. A network setter performs setting on a connection between the remote controller and a server. A setting status monitoring section monitors an apparatus setting status representing whether or not the setting by the apparatus setter is ended and a network setting status representing whether or not the setting by the network setter is ended. A setting status display controlling section displays the apparatus setting status and the network setting status.
摘要:
A surface emitting semiconductor laser which can perform laser oscillation in a single peak beam like that in a single lateral mode and a manufacturing method which can easily manufacture such a laser at a high yield are provided. When a surface emitting semiconductor laser having a post type mesa structure is formed on an n-type semiconductor substrate, a mesa portion is formed and up to a p-side electrode and an n-side electrode are formed. Thereafter, a voltage is applied across the p-side and n-side electrodes and the laser is subjected to a steam atmosphere while extracting output light, thereby forming an Al oxide layer onto a p-type AlwGa1-wAs layer as a top layer of a p-type DBR layer and forming refractive index distribution like that of a concave lens.