Abstract: A shopping assistance system includes a strength acquirer and a determining processor. The strength acquirer is configured to acquire values of a received signal strength indication at a reader device while the reader device performs wireless communication with an electronic tag attached to at least one product. The reader device is configured to perform the wireless communication with the electronic tag by using a radio wave as a medium to read a piece of product information on the at least one product. The determining processor is configured to determine, for each of the at least one product, whether or not the at least one product is an object to be purchased based on a change of the received signal strength indication over time.

Abstract: A water hardness-measuring method and a fouling prevention method for hardness-measuring device include adding a colorant containing Eriochrome Black T and/or Calmagite and a sulfate ester-type anionic surfactant having a bonding unit derived from a sulfate ester including an alkyl group having 8 to 18 carbon atoms that may have one or more substituent in its chemical formula to a sample water.

Abstract: A method to condense and liquefy vapor by introducing the vapor into a heat exchanger and bringing same into contact with a cooling body in the heat exchanger, wherein a droplet condensation promoting agent is directly added to the vapor introduced into the heat exchanger or to the heat exchanger. A droplet condensation promoting effect due to the droplet condensation promoting agent can be sufficiently manifested and condensation efficiency by droplet condensation can be improved by way of directly adding the droplet condensation promoting agent such as a film forming amine or the like to the vapor introduced into the heat exchanger or to the heat exchanger.

Abstract: Provided is a motorcycle pneumatic tire in which the wet grip performance during turning is improved while the steering stability during turning is ensured. In this motorcycle pneumatic tire, a tread portion is composed of a central rubber and a side rubber having a lower modulus than the central rubber and has a structure in which the central rubber and the side rubber are sequentially laminated in both tire widthwise side portions, with the side rubber extending to a tire width-direction inner side further than a point at ¼ of a tread width TW on a tire width-direction outer side from a tire equator.

Abstract: Provided is a motorcycle pneumatic tire in which the wet grip performance is improved while the steering stability during turning is ensured. The motorcycle pneumatic tire includes, on its ground-contact surface: a first inclined groove (21) that extends on a tire width-direction outer side from the vicinity of a tire equator and is inclined in the same direction as a tire rotation direction; and a short groove (22) that is arranged on the extension of a tire width-direction outer end of the first inclined groove (21).

Abstract: An object of the present technology is to provide a chlorine-concentration-measuring composition that can reduce staining by reagents, a measurement method using the chlorine-concentration-measuring composition and a method for reducing staining by chlorine-concentration-measuring composition using an aromatic sulfonic acid-based polymer or the salt thereof. Provided are a chlorine-concentration-measuring composition comprising an aromatic sulfonic acid-based polymer or the salt thereof; a chlorine-concentration-measuring composition comprising component (a) a color reagent for detection of residual chlorine and component (b) an aromatic sulfonic acid-based polymer or the salt thereof; a chlorine-concentration-measuring method comprising using the composition; and a method for reducing or preventing staining by using the chlorine-concentration-measuring composition comprising an aromatic sulfonic acid-based polymer or the salt thereof.

Abstract: There is provided with a cylindrical member that can be easily increased in size. The cylindrical member comprises a first cylindrical member that is constituted by a cylindrical fiber reinforced plastic member that has a first metal film on a surface thereof and a second cylindrical member that is constituted by a cylindrical fiber reinforced plastic member that has a second metal film on a surface thereof. The first metal film and the second metal film are joined to each other. The first metal film and the second metal film may be welded to each other. A joining member may pass through a first metal film and a second metal film.

Abstract: A wireless communications system according to an aspect includes a communications terminal, a detection unit, and a control unit. The communications terminal includes a communications unit to communicate wirelessly with a communications partner terminal. The detection unit detects movement of the communications terminal. The control unit controls the communications terminal so as to vary a communicable area of the communications unit. The communicable area is defined relatively to the communications terminal. The control unit varies the communicable area according to at least magnitude of the movement detected by the detection unit.

Abstract: A shopping assistance system includes a moving device (bagging device) and an information acquisition device. The moving device includes a support portion and a guide portion. The support portion is provided with a placement surface on which a product with an RF tag is placed. The guide portion includes a shielding space for shielding radio waves therein, and is disposed around the support portion along outer circumferential edges of the placement surface. The information acquisition device reads product information from the RF tag by performing wireless communication with the RF tag using an antenna when a relative positional relationship between a communication area of the antenna and the RF tag changes in the shielding space, the communication area being an area which is set around the antenna and in which wireless communication with the RF tag is performed.

Abstract: A smelting method capable of obtaining an iron-nickel alloy having a high nickel grade of 4% or higher by effectively facilitating a reduction reaction of pellets formed using a nickel oxide ore as a raw material. The present invention is a method for smelting a nickel oxide ore, by which an iron-nickel alloy is obtained by forming pellets from a nickel oxide ore and reducing and heating the pellets. In the pellet production step S1, a mixture is obtained by mixing raw materials that contain at least a nickel oxide ore and a carbonaceous reducing agent. In the reduction step S2, a furnace floor carbonaceous reducing agent is laid on the floor of the smelting furnace in advance when placing the obtained pellets in the smelting furnace and the pellets are placed on the furnace floor carbonaceous reducing agent and then reduced and heated.

Abstract: Provided is a method for producing a pellet capable of suppressing heat shock-induced crack occurrence, when nickel oxide ores are made into pellets and placed in a reducing furnace in a smelting process. In the method for producing a pellet from a nickel oxide ore, a nickel oxide ore, a binder and a carbonaceous reducing agent are mixed, the mixture is made into a lump, and then the resulting lump is subjected to a preheat treatment at a temperature of 350° C. to 600° C. In this preheat treatment, the lump more preferably undergoes the preheat treatment at a temperature of 400° C. to 550° C.

Abstract: Provided is a smelting method whereby a reaction for reducing pellets, said pellet being formed by using a saprolite ore as a starting material, can be effectively conducted and thus an iron/nickel alloy having a nickel grade of, for example, 16% or greater can be obtained. The method comprises: a pellet production step (S1) for producing the pellets from the saprolite ore; and a reduction step (S2) for heating and reducing the obtained pellets in a smelting furnace. In the pellet production step (S1), at least the saprolite ore and a preset amount of a carbonaceous reducing agent are mixed together to produce the pellets. In the reduction step (S2), a hearth carbonaceous reducing agent is preliminarily spread on the hearth of the smelting furnace and the pellets produced above are placed on the hearth carbonaceous reducing agent and then subjected to a heat reduction treatment.

Abstract: A motor which is capable of realizing further space saving and cost reduction. A cylindrical outer rotor 11 is rotatable around a central axis CL thereof. A plurality of magnets 13 are arranged at equal intervals on an inner circumferential surface of the outer rotor 11. Three Hall elements 15 to 17 are arranged to oppose the respective magnets 13 and detect switching of magnetic poles caused by movement of the respective magnets 13 passing through each vicinity of the Hall elements 15 to 17 when the outer rotor 11 rotates. The Hall element 17 is comprised of a linear Hall element that outputs a linear signal representing a linear change of a magnetic flux density caused by movement of the respective magnets 13. One of the respective magnets 13 is arranged offset along the central axis CL as compared to the other magnets 13.

Abstract: Provided is a pneumatic tire for motorcycles which can exhibit a performance of a new tire at an early period and enables visual confirmation that the tire as new is worn to such an extent as to be capable of sufficiently exhibiting its performance. The pneumatic tire for motorcycles includes a tread portion 10 formed into a ring shape, in which the tread portion 10 is provided with a width direction shallow groove 11b in which the shallow groove having a width of 0.1 to 2.0 mm and a depth of 0.1 to 2.0 mm is designed to extend at least in a tire width direction. A length of the width direction shallow groove 11b is greater than or equal to 50% of a width of a tire ground contact surface, and the width direction shallow groove 11b is provided at intervals which are shorter than a length of the tire ground contact surface.

Abstract: Provided is a pneumatic tire for a motorcycle that is capable of early exhibiting performance of a new tire and that enables it to be visually confirmed that the new tire is worn to a degree that the tire can fully exhibit the performance. The pneumatic tire for a motorcycle includes a tread portion 1 formed into a ring shape, in which the tread portion 1 is provided with shallow grooves 2 having a width of 0.1 to 2.0 mm and a depth of 0.1 to 2.0 mm and extending in a tire circumferential direction.

Abstract: Provided is a smelting method capable of effectively promoting a reduction reaction on pellets formed using nickel oxide ore as starting material to obtain a ferronickel alloy with a high nickel grade of at least 4%. The present invention is a method for smelting nickel oxide ore wherein ferronickel alloy with a nickel grade of at least 4%, the method comprising a pellet-producing step S1 for producing pellets from nickel oxide ore, and a reducing step S2 for reduction-heating of the obtained pellets in a smelting furnace. In the pellet-producing step S1, the pellets are produced by mixing nickel oxide ore with a specified amount of a carbonaceous reducing agent as starting materials. In the reducing step S2, the produced pellets are charged in a smelting furnace in which a carbonaceous reducing agent (furnace bottom carbonaceous reducing agent) has been spread over the entire furnace bottom and reduction-heating is performed.

Abstract: Provided is a method for smelting nickel oxide ore by which the occurrence of cracking due to heat shock can be suppressed when nickel oxide ore is pelletized and charged into a smelting step (reduction step). A method for smelting nickel oxide ore according to the present invention uses pellets of nickel oxide ore, the method being characterized by comprising a pellet production step S1 for producing pellets from nickel oxide ore, and a reduction step S2 for heating the resulting pellets at a predetermined reduction temperature in a reduction furnace, the reduction step S2 comprising preheating the pellets obtained in the pellet production step S1 to a temperature of 350 to 600° C. in the reduction furnace and thereafter charging the pellets into the reduction furnace and raising the temperature of the reduction furnace to the reduction temperature.

Abstract: In measuring a dissolved substance, a concentration of a specific dissolved substance in a sample water is measured using a measuring water W1 developing a specific color within a specific pH range by adding each of two reagents to a sample water W0, and an acid-base indicator S developing different colors other than the specific color is selected in a first pH range including the specific pH range and a second pH range deviating from the first pH range. Next, a reagent is prepared by adding the acid-base indicator to one reagent wherein a pH value of a reagent added water where the two kinds of reagents are separately added to the sample water is within the second pH range. Next, absorbance values are calculated by three region component lights which are a transmitted light in the measuring water wherein the prepared reagent is added.

Abstract: Provided is a production method for producing pellets that are used for producing an iron-nickel alloy and that are produced by mixing at least a nickel oxide ore, a carbonaceous reducing agent, and an iron oxide and agglomerating the obtained mixtures, the method comprising: a step S11 for producing at least two types of mixtures having different mixing ratios of nickel oxide ore, carbonaceous reducing agent, and iron oxide; and a step S12 for forming pellets, which are agglomerates having a layered structure, by using the two or more types of mixtures such that the mixture with the highest content ratio of iron oxide, among the two or more types of mixtures forms the outermost layer.

Abstract: Provided is a method for producing pellets by which, when nickel oxide ore is being pelletized and smelted to produce ferronickel, which is an iron-nickel alloy, it is possible to allow the smelting reaction to proceed effectively. A method for producing pellets according to the present invention is for producing pellets which are used in producing iron-nickel alloy and which are produced by mixing raw materials including nickel oxide ore and agglomerating the resulting mixture, wherein the method comprises: a mixing step S11 for mixing at least nickel oxide ore, a carbonaceous reducing agent, and iron oxide to generate a mixture; and a pellet formation step S12 for agglomerating the resulting mixture and forming pellets. In the mixing step S11, the mixture is generated such that the total weight of nickel and iron accounts for 30 wt % or more of the total weight of the pellets formed.