摘要:
In an acceleration tube conditioning apparatus for performing a conditioning process on an acceleration tube when a high frequency power signal to be supplied to an acceleration tube is generated by a high frequency power supply, a power value collecting section collects a traveling wave power value and a reflection wave power value from a sensor which monitors the traveling wave power signal and the reflection wave power signal. A high frequency calculating section calculates a resonance frequency of the acceleration tube based on the traveling wave power value and the reflection wave power value. A high frequency adjusting section determines a high frequency value based on one of the traveling wave power value and the reflection wave power value as a selection power value, and a high frequency power supply control unit controls the high frequency power supply based on the high frequency value. The high frequency value indicates a constant value when the selection power value is smaller than a predetermined value, and indicates the calculated resonance frequency when the selection power value is larger than the predetermined value.
摘要:
The present invention provides a method for production of a single electron semiconductor element (SET) in which a quantum dot is selectively arranged in a nano gap between fine electrodes, whereby the product yield is significantly improved, leading to excellent practical applicability. The method for production of SET of the present invention is characterized in that a solution containing ferritin including a metal or semiconductor particle therein, and a nonionic surfactant is dropped on a substrate having a source electrode and a drain electrode formed by laminating a titanium film and a film of a metal other than titanium, whereby the ferritin is selectively arranged in a nano gap between the source electrode/drain electrode. In the method for production of SET of the present invention, the metal or semiconductor particle can be fixed as a quantum dot at a suitable position in the nano gap between the source electrode/drain electrode following decomposition of ferritin, and in addition, formation of unnecessary quantum dot can be suppressed.
摘要:
A method for obtaining a cobalt-apoferritin complex according to the present invention includes: the step a) of preparing a solution including a Co2+ ion, a protein, a pH buffer agent and a Co2+ associating agent; and the step b) of adding an oxidizing agent to the solution and thereby making the protein contain a fine particle including cobalt.
摘要:
An image output system includes input section for inputting an image or data, instruction acceptance section for accepting an instruction of outputting the input image or an image generated from the input data, image output section for outputting the instructed image, and log-recording section for recording an image log, including at least the image to be output and the result information of an output process for the image to be output, irrespective of whether or not the output of the instructed image has been completed successfully.
摘要:
An object of the present invention is to obtain a zinc oxide-protein complex which can be a source of nanoparticles of zinc oxide utilizing a protein having a cavity inside thereof The process for producing a zinc oxide-protein complex according to the present invention includes a hydrogen peroxide addition step for adding hydrogen peroxide so that the concentration would be 60 mM or greater and 150 mM or less to a buffer containing a protein having a cavity inside thereof such as ferritin, zinc ion, and ammonia.
摘要:
The method of the production of a nanoparticle of the present invention includes a step of forming a nanoparticle of a group II–group VI compound semiconductor in the cavity part of a protein, in a solution containing the protein having a cavity part therein represented by apoferritin, the group II element ion represented by Cd and Zn, and the group VI element ion represented by S and Se. Preferably, the solution further includes an ammonium ion, and the supply of the group VI element ion (X2−) into the solution is conducted by adding H2NCXNH2 to the solution. According to the aforementioned method, semiconductor nanoparticles having a uniform particle size can be produced.
摘要:
The present invention relates to a precious metal-recombinant apoferritin complex produced by recombination technique, wherein the precious metal is gold (Au) or platinum (Pt), and wherein the residues of glutamic acid and aspartic acid in a channel of apoferritin complex are substituted with small polar amino acid residues or/and noncharged amino acid residues, e.g., serine, or/and with basic amino acid residues, e.g., lysine. The substitution prevents a repulsive force due to electrostatic interaction between a metal ion, e.g., (AuCl4)− that has a negative charge and a negative amino acid residue of the apoferritin, and facilitates the capture of (AuCl4)− into holding portion in the channel of said metal-recombinant apoferritin complex. The captured (AuCl4)− is subsequently reduced to Au, and thus the gold-recombinant apoferritin complex is produced.
摘要:
A novel structure comprising two substrates disposed closely each other, in which an organic molecular layer is formed on the surface of at least one substrate wherein the gap between the surface of the organic molecular layer on one substrate and the surface of the other substrate or the surface of the organic molecular layer on the other substrate is maintained to be usually less than 1000 &mgr;m, preferably less than 1 &mgr;m is provided. A motor, actuator, and vibration-absorbing table comprising such structure are also provided.
摘要:
The present invention relates to a solid electrolytic capacitor having a large capacitance and a higher resistance to heat and adapted as a surface-mount device and a method of producing the same. The invention may include the followings features: (1) a layer containing an electroconductive polymer and a less conductive polymer is provided on a dielectric oxide film on the positive electrode foil; (2) a separator of a polyester resin based unwoven fabric made by span bonding and/or wet processing a resin material is sandwiched between the positive electrode foil and the negative electrode foil and rolled together to form a capacitor element which also include a solid electrolyte; (3) a separator is sandwiched between the positive electrode foil and the negative electrode foil coated with a dielectric oxide film exhibiting a withstand voltage of 0.8 to 10 V and rolled together to form a capacitor element which also include a solid electrolyte of an electrically conductive polymer; (4) the negative electrode foil is coated with a layer made of at least a metallic material selected from titanium, zirconium, hafnium, and its compound or of a carbon material; (5) the capacitor element has its content of, water adjusted to not higher than 1% by weight and is enclosed in an outer case; (6-A) the solid electrolyte is a conductive polymer prepared by chemically polymerizing a heterocyclic monomer with the use of an oxidizing solution of which the weight ratio of bivalent iron to trivalent iron is not higher than 0.02; (6-B) the solid electrolyte is a conductive polymer prepared by chemically polymerizing a heterocyclic monomer with the use of an oxidizing solution of which the molar ratio of aliphatic and/or aromatic sulfonic acid to trivalent iron ranges from 3.0 to 3.5; and (7) the solid electrolyte is a conductive polymer prepared by chemically polymerizing a heterocyclic monomer in which the remaining of a basic organic solvent is not higher than 0.8%.
摘要:
A quantum device is constituted from a two-dimensional array of quantum dots formed from metal atom aggregates contained in a metalloprotein complex. The metalloprotein is arranged on the surface of a substrate having an insulation layer with a pitch of the size of the metalloprotein complex. The diameter of the metal atom aggregates used in the quantum device is 7 nm or smaller, and the pitch of the metalloprotein complex is preferably from 11 to 14 nm.