摘要:
A semiconductor sensor has a plurality of field-effect transistors disposed on a semiconductor substrate at spaced intervals. The field-effect transistors have respective drains electrically connected parallel to each other, respective sources electrically connected parallel to each other, and gates electrically connected parallel to each other. While a gate bias voltage is being applied to each of the field-effect transistors, a stress applied to the semiconductor substrate is detected based on a change in a combined output of the field-effect transistors. A single comb-shaped field-effect transistor may be employed instead of the plurality of field effect transistors.
摘要:
A method for fabricating a microarray of plural soft materials includes: vapor-depositing a first layer poly(para-xylylene) resin on a substrate, forming a first micro pattern in the poly(para-xylylene) resin; obtaining a substrate including a first microarray formed by pouring a first soft material solution, freeze-drying the first soft material to obtain a micro-arrayed substrate of the freeze-dried first soft material; vapor-depositing a second layer poly(para-xylylene) resin on the micro-arrayed substrate of the freeze-dried first soft material, forming a second micro pattern placed differently from the first micro pattern by penetrating the poly(para-xylylene) resin of the first and second layers, forming a second microarray on the substrate by pouring a second soft material solution; and forming a microarray of the first and second soft materials on the substrate by peeling off the poly(para-xylylene) resin of the first and second layers.
摘要:
A biological gas detection apparatus of an embodiment of the present invention includes: a sensor unit including plural types of gas sensors; a control unit of the sensor unit; a data recording unit; and a data analyzing unit, wherein the data recording unit includes a database on properties of sensitivities of the gas sensors for a single body of a desired gas component, a single body of an interference gas component, and a mixed gas of these that are included in the biological gas, and the data analyzing unit calculates concentration of the desired gas component based on sensitivities of the gas sensors output when detecting the biological gas and the database.
摘要:
A network management server includes an address manager and an address assignment direction transmitter. The address manager manages a first address, a second address and a third address of the destination mobile terminals in accordance with address assignment information received from a mobile node. The address assignment direction transmitter transmits an address assignment directions for directing a source access node to manage the first address and the second address of the destination mobile terminal, and to transmit an address assignment direction for directing a destination access node to manage the second address and the third address of the destination mobile terminal.
摘要:
A mobile communications control method of this invention controls mobile communication by a mobile terminal in a network in which a plurality of wireless systems are available. In the mobile communications control method, the mobile terminal performs location registration with a wireless system selected from among the wireless systems, based on at least one of a status of the network, a status of the mobile terminal, location information of the mobile terminal, a frequency of incoming call reception of the mobile terminal, and service area information of the wireless systems.
摘要:
Time required for location registration is reduced and concentration of location update signals caused when a group moves is prevented. Each mobile node and a mobile router sends a location update request to a local location manager near to the area in which it exists, so that time required for location registration can be reduced, and it is possible to prevent pressure on wireless resources and temporary increase in communication traffic within a mobile network, which may be caused by concentration of location update signals when a group moves as in the case of a train with a lot of passengers having mobile nodes. Thereby, even if location registration is not correctly performed by a mobile router, which sends a location update request on behalf of mobile nodes existing in the space of a moving body, due to the communication condition or a failure, it can be dealt with.
摘要:
A semiconductor sensor includes a field-effect transistor for detecting a physical quantity such as pressure, strain, acceleration or the like. The field-effect transistor is disposed on an elastically deformable portion of a cantilevered semiconductor substrate. A detected signal generator generates a signal representing a change in a drain current of the field-effect transistor in response to a stress which is applied to the field-effect transistor due to elastic deformation of the semiconductor substrate. The field-effect transistor may be supplied with a fixed gate bias voltage and an integrator may generate a signal representing an integral of the drain current for temperature compensation. Alternatively, an integrator may generate a signal representing an integral of the drain current, and a gate bias voltage may be applied to the field-effect transistor so that the signal generated by the integrator will be of a predetermined value for automatic temperature compensation. As a further alternative, a self-bias circuit may be connected between the field-effect transistor and the detected signal generator for applying a gate self-bias voltage to the field-effect transistor for automatic temperature compensation.
摘要:
A disclosed molecular communication system includes a molecular transmitter configured to transmit an information molecule in which prescribed information is encoded, a molecular receiver configured to receive the information molecule, and a molecular capsule configured to carry the information molecule from the molecular transmitter to the molecular receiver. Each of the molecular transmitter, the molecular receiver, and the molecular capsule has an artificial cell membrane in which at least one kind of molecular switch is embedded, the molecular switch being responsive to an external input signal so as to control association and separation between the molecular transmitter and the molecular capsule, and association and separation between the molecular capsule and the molecular receiver, upon application of the external input signal.
摘要:
A membrane vesicle fission system is disclosed. The membrane vesicle fission system includes: a membrane vesicle having a lipid bi-layer membrane including a cationic lipid; and a unit which applies, to the membrane vesicle, an anionic material having a hydrophobic group.
摘要:
A molecular communication system includes a molecular transmitter (20) configured to transmit an information molecules (15) onto which prescribed information is encoded; a molecular receiver (30) configured to receive the information molecule, a molecule propagation channel (40) extending from the molecular transmitter to the molecular receiver, and a molecular capsule (10) configured to encapsulate the information molecules to be transmitted from the molecular transmitter to the molecular receiver, wherein the surfaces of the molecular transmitter, the molecular receiver, and the molecular capsule have lipid bilayer membrane structure, and wherein the system further includes encapsulation means for applying a first chemical substance to the molecular transmitter, or to the molecular transmitter and the molecular capsule to encapsulate the information molecules into the molecular capsule, and decapsulation means for applying a second chemical substance to the molecular capsule and the molecular receiver to take the information molecules out of the molecular capsule and take them into the molecular receiver.