Abstract: A composite substrate according to includes: a support substrate; and a piezoelectric layer arranged on one side of the support substrate, wherein an amplitude of a waviness having a spatial frequency of more than 0.045 cyc/mm according to a shape of the support substrate is 10 nm or less.

Abstract: A membrane reactor includes a catalyst layer, a separation membrane, and a buffer layer. The catalyst layer contains a catalyst for promoting a conversion reaction from a feed gas containing hydrogen and carbon oxide to a liquid fuel. The separation membrane is permeable to water vapor which is a byproduct of the conversion reaction. The buffer layer is disposed between the separation membrane and the catalyst layer, and permeable to the water vapor toward the separation membrane.

Abstract: A sensor element is equipped with a main body including a cavity for taking in a gas on a distal end side thereof, and a porous protective layer covering an outer peripheral surface of the main body at the distal end side thereof. The porous protective layer is equipped with a water droplet blocking structure covering at least a part of a distal end surface, the part overlapping the cavity in a longitudinal direction, and a thin portion covering the distal end surface around the water droplet blocking structure.

Abstract: The ceramic heater includes: a plate; a resistance heating element built in the plate; and a shaft configured to support the plate. The shaft includes: a first end portion bonded to the plate and formed as a flange; a second end portion opposite the first end portion; a root portion extending from the first end portion between the first end portion and the second end portion; a main body portion connecting to the second end portion between the first end portion and the second end portion; and a connecting portion which connects the root portion and the main body portion. The main body portion has an inner diameter and an outer diameter being smaller than an inner diameter and an outer diameter of the root portion A thickness of at least a portion on the first end portion side in the root portion gradually increases toward the first end portion.

Abstract: The waveguide element includes: a dielectric portion having holes periodically formed in a substrate made of a ceramics material; a low-dielectric constant portion having a dielectric constant smaller than a dielectric constant of the dielectric portion; and a support substrate arranged below the dielectric portion, the support substrate being configured to support the dielectric portion. The waveguide element is configured to guide an electromagnetic wave having a frequency of 30 GHz or more and 20 THz or less, and a frequency range of the electromagnetic wave in which an absolute value of a propagation loss becomes 1 dB/cm or less is 50 GHz or more.

Abstract: An analysis apparatus includes: an acceptance unit adapted to accept parameters that affect precipitation of a crystal of an analyte; a prediction unit adapted to predict a type of crystal form to be precipitated, based on the accepted parameters; an evaluation unit adapted to evaluate a relationship between the type of crystal form to be precipitated and the parameters, based on a degree of influence that represents an extent to which each of the parameters affects the precipitation of the crystal of the analyte; and a providing unit that provides the type of crystal form to be precipitated and a precipitation condition to a user as information about a crystal form of a crystal to be precipitated. Thus, the type of crystal form to be precipitated and precipitation conditions of each crystal form can be predicted, with regard to an analyte that exhibits crystal polymorphism.

Abstract: A drying method for a separation membrane includes supplying a gas for drying to the separation membrane so that a value obtained by dividing the difference between a maximum value and a minimum value of a flow rate of the gas for drying on a membrane surface of the separation membrane by the minimum value of the flow rate is less than or equal to 15%. The gas for drying is less than or equal to 40 degree C. and contains a water-soluble gas that has a solubility in 1 cm3 of water of greater than or equal to 0.5 cm3 in conditions of 40 degree C. and 1 atmosphere.

Abstract: An object orientation adjusting device 10 in a roller hearth kiln includes: a first roller group 18 including a plurality of rollers 17 configured to rotate in a direction perpendicular to a conveying direction; a second roller group 20 comprising a plurality of rollers 19 configured to rotate in the direction perpendicular to the conveying direction; a lifting apparatus configured to simultaneously lift the first roller group 18 and the second roller group 20; and first sensors A, A, second sensors B, B, third sensors C, C, fourth sensors D, D configured to detect an orientation of a saggar K on a plane and arranged on both sides of a conveying path in pairs.

Abstract: A sensor element includes a base part including a plurality of oxygen-ion-conductive solid electrolyte layers stacked; a measurement-object gas flow part for introduction and flow of a measurement-object gas through a gas inlet; an inner oxygen pump electrode disposed on an inner surface of the measurement-object gas flow part; and a measurement electrode disposed on the inner surface of the measurement-object gas flow part. The inner oxygen pump electrode includes: a region (A) including an electrode end close to the gas inlet, and a region (B) including an electrode end far from the gas inlet. A content rate of an activity reducing metal in a metal material in the region (A) is higher than that in the region (B). A ratio of the length of the region (A) of the inner oxygen pump electrode to the length of the inner oxygen pump electrode is 15% to 90%.

Abstract: A member for semiconductor manufacturing apparatus includes: a ceramic plate having a wafer placement surface on its upper surface and a built-in electrode; a base plate provided on a lower surface of the ceramic plate; a base plate through-hole that penetrates the base plate in an up-down direction; an insulating tube inserted into the base plate through-hole; an adhesive agent pool provided in at least one of an inner circumferential surface of the base plate through-hole or an outer circumferential surface of the insulating tube, and disposed at a position down away from an upper surface of the insulating tube; and an adhesive layer including an insulating tube outer circumferential surface adhesion part formed from the lower surface of the ceramic plate to an intermediate point of the adhesive agent pool.

Abstract: A honeycomb structure includes: a pillar shaped honeycomb substrate 10 having porous partition walls 12 that define a plurality of cells 11, each of the cells 11 extending from an inflow end face 14 to an outflow end face 15 of the honeycomb substrate 10 to form a flow path for a fluid; and a porous outer peripheral coating layer 13 disposed on an outer peripheral surface of the honeycomb substrate 10, wherein the honeycomb substrate 10 includes pores having a pore diameter that causes capillary action in the partition walls 12, and wherein, when an average pore diameter of the honeycomb substrate is B [?m], and an average pore diameter of the outer peripheral coating layer is A [?m], a relationship of B<A is satisfied.

Abstract: A pillar-shaped honeycomb structure includes an outer peripheral side wall, and a plurality of partition walls disposed on an inner peripheral side of the outer peripheral side wall, partitioning a plurality of cells penetrating from a first end surface to a second end surface and forming flow paths each having an opening at both ends, wherein an average porosity of the plurality of partition walls measured according to a mercury porosimetry method specified in JIS R1655: 2003 is 50 to 60%; and wherein a ratio of a volume occupied by pores having a pore diameter of 6 ?m or more to a total pore volume of the plurality of partition walls measured according to the mercury porosimetry method specified in JIS R1655: 2003 is 40% or less.

Abstract: A segment joint body includes a plurality of honeycomb structure segments having at least one planar side face, in which the plurality of honeycomb structure segments are joined to each other at their planar side faces via a joining material, wherein for each of the plurality of honeycomb structure segments, among bending amount(s) of the at least one planar side face used to join the adjacent honeycomb structure segment, assuming a maximum bending amount is Smax (unit: mm), and a length of a line segment connecting a center of gravity of the first segment end face and a center of gravity of the second segment end face is L (unit: mm), Smax/L?0.010 is satisfied.

Abstract: A ceramic body mainly based on BaTiO3-based crystalline particles in which a part of Ba is substituted with at least one rare earth element and at least one alkaline earth metal element. The ceramic body contains from 1.0 to 8.0% by mass of Ba6Ti17O40 crystalline particles. The BaTiO3-based crystal particles have a substituted amount of one mol of the Ba with the alkaline earth metal element of 0.01 to 0.10 mol.

Abstract: A waveguide device includes: a line substrate having holes periodically formed in a semiconductor substrate; a waveguide configured to propagate an electromagnetic wave while confining the electromagnetic wave therein with the holes; a low-dielectric constant portion having a dielectric constant smaller than a dielectric constant of the line substrate, the low-dielectric constant portion overlapping the waveguide in a thickness direction of the line substrate; and a support substrate arranged below the line substrate, the support substrate being configured to support the line substrate. The waveguide device is configured to guide an electromagnetic wave having a frequency of 30 GHz or more and 20 THz or less.

Abstract: A gas sensor includes an element body, an adjustment pump cell, a preliminary pump cell, a measurement electrode, a reference electrode, a specific gas concentration detection device. The element body provides a measurement-object gas flow section to allow a measurement-object gas to be introduced into and flow through the measurement-object gas flow section. The adjustment pump cell adjusts an oxygen concentration of an oxygen concentration adjustment chamber in the measurement-object gas flow section. The preliminary pump cell pumps oxygen into a preliminary chamber to prevent the measurement-object gas in a low-oxygen atmosphere from reaching the oxygen concentration adjustment chamber, the preliminary chamber being provided upstream of the oxygen concentration adjustment chamber in the measurement-object gas flow section.

Abstract: Provided is a semiconductor film having a corundum-type crystal structure composed of ?-Ga2O3 or an ?-Ga2O3 solid solution, and an X-ray rocking curve full width at half maximum of a (104) plane on at least one surface of the semiconductor film is 500 arcsec or less.

Abstract: A method for producing a ceramic product, the method comprising adjusting a water vapor partial pressure in a firing furnace when firing a subsequent ceramic product using at least one result of a water absorption rate and a compressive strength that are characteristics of a previously fired ceramic product.

Abstract: A wafer placement table includes a ceramic plate, a cooling plate, a space layer, and a space layer forming portion. The ceramic plate has a wafer placement portion at an upper surface of the ceramic plate and incorporates electrodes. The cooling plate is joined to a lower surface of the ceramic plate and has a refrigerant passage. The space layer is provided between the refrigerant passage and an upper surface of the cooling plate. The space layer forming portion is a part, surrounding the space layer, of the cooling plate. The space layer forming portion has a seam. The seam is formed by metal bonding without a seal member.

Abstract: A mixed gas separation method includes a step of supplying a mixed gas to the separation membrane and causing a gas with high permeability in the mixed gas to permeate through the separation membrane. In the step, when ?P is a difference between a gas pressure on the primary side of the separation membrane, i.e., a feed pressure, and a gas pressure on the secondary side of the separation membrane, i.e., a permeate pressure, and A is a Joule-Thomson coefficient, a difference ?T between a gas temperature on the primary side of the separation membrane, i.e., a feed temperature, and a gas temperature on the secondary side of the separation membrane, i.e., a permeate temperature, is made less than 90% of A·?P by setting the Nu number in the mixed gas to be greater than or equal to 2 and less than or equal to 10.