104results about How to "Appropriate concentration" patented technology

Provided is a field-effect transistor (FET) having small off-state current, which is used in a miniaturized semiconductor integrated circuit. The field-effect transistor includes a thin oxide semiconductor which is formed substantially perpendicular to an insulating surface and has a thickness of greater than or equal to 1 nm and less than or equal to 30 nm, a gate insulating film formed to cover the oxide semiconductor, and a strip-like gate which is formed to cover the gate insulating film and has a width of greater than or equal to 10 nm and less than or equal to 100 nm. In this structure, three surfaces of the thin oxide semiconductor are covered with the gate, so that electrons injected from a source or a drain can be effectively removed, and most of the space between the source and the drain can be a depletion region; thus, off-state current can be reduced.

A method of producing a stream of aqueous chlorine dioxide sterilizing fluid suitable for use in sterilizing medical and dental equipment or for wound irrigation or skin asepsis is described. Steps are:

• • pumping fluid portions of a first reagent and a second reagent into the proximal end of an elongate reaction chamber (24) to form a reaction mixture, the reagents being selected to react together to form aqueous chlorine dioxide;
  • providing a stream of water around or adjacent to the distal end of the reaction chamber (24); continuing to pump fluid portions of said reagents so as to cause the reagent mixture to travel through the reaction chamber and then into the stream of water to form a stream of aqueous chlorine dioxide sterilizing fluid;
  • wherein the pumping rates and the internal dimensions of the elongate reaction chamber (24) are selected so that the reaction to form chlorine dioxide is substantially complete when the reagent mixture exits the reaction chamber (24); and continuing pumping fluid portions of said reagents until a desired quantity of said sterilizing fluid has been produced;
  • wherein the pumping of each reagent is carried out by means of a diaphragm pump (90, 92) or a piston pump via a pressure-control valve (32, 34) so that each fluid portion is pumped at substantially constant pressure.

An SOF measuring system that can continuously measure SOF and a soot measuring system that can continuously measure soot are connected with an exhaust gas line. The soot measuring system comprises a diluter that selectively dilutes either one of the exhaust gas and standard gas whose hydrocarbon concentration is known with diluent gas and extrudes it. A dilution ratio adjusting device can adjust a dilution ratio of the diluter. A soot detector continuously detects soot in the exhaust gas or the standard gas diluted by the diluter. The SOF measuring system can be connected with the diluter so that an exhaust gas analyzer can measure the hydrocarbon concentration in the standard gas diluted by the diluter.

A method for treating a subterranean sand formation adjacent to a bore hole forms a permeable solid barrier which restrains the movement of sand particles while maintaining the permeability of the formation. The method includes the step of forming a consolidation fluid containing an asphaltene and a hydrocarbon solvent such as naphtha or reformate with a concentration of between about 40-80 grams of asphaltene per 100 ml of solvent. The consolidation fluid is injected into the sand formation to saturate the sand in a zone around the bore hole for a distance of 1 to 2 feet. This is followed by injecting an oxygen-containing gas at a temperature of between about 100° C. to about 150° C. for a period of time of between about 24 to about 72 hours. In one embodiment of the invention, the oxygen concentration of the effluent gas is monitored and the injection of oxygen-containing gas is continued until he oxygen concentration of the effluent gas is equal to the oxygen concentration of the injected gas.

Process for stainless steel pickling consisting in placing the material to be treated in a bath kept at a temperature ranging from 30 DEG C. to 70 DEG C. and containing: a) HCl b) Fe3+c) HF d) emulsifiers, wetting agents, polishing agents, acid attack inhibitors; the bath being fed continuously with: an air flow equal to at least 3 m3/h per m3 bath min. and an oxidizer quantity adjusted to the bath redox potential to be kept at 250 mV min.

In a developing processing of a wafer having a resist film low in the dissolving rate in a developing solution formed thereon and subjected to an exposure treatment, a developing solution of a low concentration is supplied first onto a wafer and the wafer is left to stand for a prescribed time to permit a developing reaction to proceed, followed by further supplying a developing solution having a concentration higher than that of the developing solution supplied first onto the wafer, leaving the substrate to stand and subsequently rinsing the wafer, thereby improving the uniformity of the line width in the central portion and the peripheral portion of the wafer.

The invention enables appropriately concentrating instruction strings or data pieces sporadically present in a plurality of regions over more than one compilation unit and adjusting the front-and-rear relationship of executed instruction strings without changing the program compilation unit such as a file, subroutine, or function and also without creating a link processing program for batch processing of the system as a whole. Different section names are given to the executed instruction strings and the unexecuted instruction strings and the referenced data and the unreferenced data of an object program respectively, so that, when an execution module is generated from the object program by linking, the sections having an executed section name and the sections having an unexecuted section name in a plurality of files may be aggregated respectively to divide the instructions into an execution portion and an unexecution portion.

The invention discloses preparation methods of a graphite-phase boron nitride nano wafer and a colloid thereof, and belongs to the technical field of material preparation. The graphite-phase boron nitride nano wafer is synthesized conventionally at a high temperature, and other surface modifiers are not needed, so that an ultra-high-concentration graphite-phase boron nitride nano wafer colloid can be prepared, and can be further diluted according to practical needs. By adopting the preparation methods disclosed by the invention, the problems that graphite-phase boron nitride cannot be prepared into a high-concentration stable water-phase colloid, the preparation condition is relatively harsh and the cost is relatively high at present are solved, and the preparation methods are simple, low-price and easily-available in raw materials, low in environmental pollution and beneficial for large-scale industrial production, and have significant economical and social benefits.

The present invention provides a simple, inexpensive apparatus for and method of capturing biological or other material from sample suspensions on a collection surface and for depositing captured material on a receiving surface, such as a microscope slide, for observation and analysis. Accordingly, cytological material may be deposited in near mono-layers for the detection of disease. In one embodiment of the present invention, density gradients of material are captured and deposited, thus providing a desired range of concentrations for examination. In another embodiment multiple depositions or multiple slides may be made from the same sample suspension. The method and apparatus to exploit this new method are both presented for various applications. The dimensions of material captured and deposited may be controlled and used in conjunction with microscope slides that confine material to specific regions of interest.

The invention relates to a production method for table vinegar. The production method adopting rice and bran as raw materials comprises the following steps: mixing, material wetting, inoculating, primary fermentation, secondary fermentation, vinegar pouring, blending, sterilizing, inspecting and filling. The production method has the beneficial effect the table vinegar produced by virtue of the method disclosed by the invention is dark brown in color and luster, strong in vinegar smell, soft in sour, slightly sweet, clear in state and proper in concentration. And moreover, the method is easy to grasp, convenient to realize, long in fermenting and sterilizing time, capable of sufficiently sterilizing and high in safety.

The invention discloses a preparation method of nanoparticles of an eight-arm PEG (polyethylene glycol)-oleanolic acid drug carrier. The preparation method comprises steps as follows: eight-arm PEG and oleanolic acid are subjected to an esterification reaction, and a conjugate of eight-arm PEG-oleanolic acid is obtained; 10-hydroxycamptothecine is wrapped with eight-arm PEG-oleanolic acid through self-assembly, and the nanoparticles are obtained. The nanoparticles have a double-layer structure, the outer layer is hydrophilic PEG, and the inner layer is hydrophobic oleanolic acid drug and 10-hydroxycamptothecine. The preparation method has the advantages that the drug loading capacity is greatly increased with the adoption of PEG; the water solubility and stability of oleanolic acid are increased, and the half-life period of oleanolic acid is prolonged; pH sensitive release of the drug in tumor cells can be realized; the toxic and side effects on normal tissue are reduced; the preparation process is simple and easy to operate.

Methods and kits for radiolabeling proteins, peptides and ligands with radiolytic isotopes, particularly yttrium-90, are disclosed, whereby sufficient purity, specific activity and binding affinity are achieved such that the radiolabeled protein may be directly administered to a patient without further column purification. Such kits and methods will be particularly useful in bringing radioimmunotherapy to the hospital and outpatient setting for the treatment of cancer.

The invention relates to a coal seam gas extraction method, in particular to a coal seam gas extraction method based on the controllable impact wave technology. In order to solve the technical problems that in existing coal seam gas extraction, the cost is high, the anti-reflection effect is poor, and safety control is lacked, the invention provides the coal seam gas extraction method based on thecontrollable impact wave technology. The method comprises the following steps of 1, exploiting a roadway; 2, drilling anti-reflection drill holes, wherein 2.1, a plurality of anti-reflection drill holes are drilled in the coal mining side perpendicular to a return air cross heading and/or track cross heading; 3, installing controllable impact wave generating equipment; 4, performing impact wave anti-reflection operation. On the basis of the controllable impact wave technology, coal seam gas extraction is performed, the anti-reflection effect is good, the number of drill holes in a fully mechanized coal mining face is greatly reduced, the extraction time is shortened, the cost is effectively lowered, the extraction efficiency is improved, safety control is good, and the wide application prospect is achieved.

The present invention discloses a compound that is used for protecting and providing nutrition for fruit trees. The compound is aqueous solution of KNO3, Ca(NO3)2, MgSO4.7H2O, MnCl2.4H2O, H3B3O3, CuSO4.5H2O, Zn(NO3)2.6H2O, Fe(NO3)3.9H2O, KH2PO4, Na2HPO4.12H2O, NH4Cl, and (NH4)6Mo7O24.4H2O. The compound provides thirteen mineral elements that are required for the normal growth and development of the fruit trees and has excellent effects on the growth and development of the fruit trees, the flowering rate, the productivity of fruits and the quality of the fruits. And the compound can completely prevent the influence of acid rain and soil acidification on the growth and development of the fruit trees.

The invention relates to the technical field of heat treatment, and discloses a gear carburization process and application thereof. The gear carburization process comprises the following steps of pre-carburization, re-carburization and cooling and heat prevention. The pre-carburization and the re-carburization comprise carburization in different carbon potentials from high to low, and the circulation is carried out for more than one time. The carburization process has the advantages that the permeating rate is fast, the standing time of gear materials at high temperature is shortened, and themicrostructure is refined; and the surface carbon concentration is proper, the permeability layer gradient is gentle, penetrating agents are saved, and energy resources are saved. The short time heatprevention of gears in a perlitic transformation area can enable the gears to effectively diffuse and separate out alloy carbides in a hardened layer area, the microstructure coarsening is restrained,and gears with better microstructure performance are obtained; and the subsequent quenching times can be reduced, and the process is simplified. Conditions are created for reducing the manufacturingcost of the type of gears due to the fact that the process improves the heat treatment efficiency of heavy-load gears, and improves the product microstructure performance.