Abstract: According to an aspect, an electronic device includes a display unit, a contact detecting unit, a control unit. The display unit displays a first image. The contact detecting unit detects a contact. when the contact detecting unit detects an operation in which a plurality of contacts including at least a first contact and a second contact are made and thereafter the first contact is moved in a direction approaching to the second contact, the control unit causes the first image displayed on the display unit to be distorted.

Abstract: According to an aspect, an electronic device includes a display unit, an operation detecting unit, and a control unit. The display unit displays a first object. The operation detecting unit detects an operation. When a slide operation is detected by the operation detecting unit while the first object is displayed on the display unit, the control unit causes a second object associated with a layer below the first object to be displayed on the display unit.

Abstract: A mobile electronic device and method is disclosed. A reduced image of a screen image comprising at least one icon is displayed on a display surface. The reduced image is overlapped on the screen image displayed on the display surface.

Abstract: A mobile terminal device includes a display part, a receiving part that receives an operation to cause an image group displayed in the display part to transition, and a display controller that controls the display part such that the image group displayed in the display part makes transition based on the operation. When the image group is caused to transition, the display controller reduces an image constituting the image group and increases the number of images displayed in the display part.

Abstract: A fiber aggregate contains fine carbon fibers and fine boron nitride fibers. Desirably the boron nitride fibers form an outer layer portion of the fiber aggregate and the fine carbon fibers form a core portion of the fiber aggregate. Desirably the fine carbon fibers and the fine boron nitride fibers are twisted with each other. Desirably the fine carbon fibers are carbon nanotubes and the fine boron nitride fibers are boron nitride nanotubes. Desirably the fiber aggregate further contains boron-containing fine carbon fibers. The fine boron nitride fibers are formed by substituting carbon atoms of fine carbon fibers by boron atoms and nitrogen atoms. The fiber aggregate is fabricated by mixing a fiber aggregate that contains fine carbon fibers with boron and heating the fiber aggregate mixed with the boron in a nitrogen atmosphere to transform some of the fine carbon fibers into fine boron nitride fibers.

Abstract: An air cleaner includes a case in which an inner cylindrical filter and an outer cylindrical filter are housed, the case having a case body that defines an opening end surface closed by a cover member. The case includes an air inlet provided to an outer circumference of the case body for supplying outside air and an exhaust outlet provided to a bottom of the case body at a downstream side in an air-flowing direction for discharging the air supplied through the air inlet and filtered through the inner cylindrical filter and the outer cylindrical filter. A mass flow rate sensor is provided in the exhaust outlet to measure the flow rate of the air. A flow straightening grid is provided at the upstream side of the mass flow rate sensor to straighten the flow of the air.

Abstract: A fiber aggregate contains fine carbon fibers and fine boron nitride fibers. Desirably the boron nitride fibers form an outer layer portion of the fiber aggregate and the fine carbon fibers form a core portion of the fiber aggregate. Desirably the fine carbon fibers and the fine boron nitride fibers are twisted with each other. Desirably the fine carbon fibers are carbon nanotubes and the fine boron nitride fibers are boron nitride nanotubes. Desirably the fiber aggregate further contains boron-containing fine carbon fibers. The fine boron nitride fibers are formed by substituting carbon atoms of fine carbon fibers by boron atoms and nitrogen atoms. The fiber aggregate is fabricated by mixing a fiber aggregate that contains fine carbon fibers with boron and heating the fiber aggregate mixed with the boron in a nitrogen atmosphere to transform some of the fine carbon fibers into fine boron nitride fibers.

Abstract: A method for manufacturing a carbon nano-tube by a chemical vapor deposition includes: introducing a carbon source gas into a reaction chamber; growing the carbon nano-tube by using a catalyser; and maintaining a pressure of the carbon source gas in the reaction chamber in a range between 1.0 Torr and 2.0 Torr so that the carbon nano-tube is formed. Since the pressure is maintained in a range between 1.0 Torr and 2.0 Torr, the catalyser is not caulked. Thus, the carbon nano-tube is stably formed.