59results about How to "Cheap and easy to use" patented technology

A coiled RFID tag that includes an RFID transponder circuit that is formed over a generally cylindrically-shaped substrate core so that portions of the antenna of the transponder circuit circumscribe the substrate core. With this configuration, the tag may be applied to objects without regard to antenna orientation. The transponder circuit and substrate core are encased in a protective material that will prevent ingress of moisture and dust, insulate from heat and cold but will allow radio frequency waves to pass without significant attenuation. The tag may be attached various items by an overmolding process in the formation of a grip of other portions. Alternatively, the tag may be attached to objects by forming it into a flexible sleeve-like portion that is pulled over objects and maintained in position by the resilient properties of the sleeve.

A modular RFID tag that includes at least first and second tag portions that are mechanically connected to one another. A portion of the RFID transponder circuit resides in each portion of the tag. When the two tag portions are connected they form a substantially cylindrically-shaped structure. When the two tag portions are connected to one another, a conductive pin attached to one portion engages the other portiont to complete the circuit. Each portion may include a deformable layer on an inside surface that allows the modular tag to be attached to items of different dimensions and cross-sectional profiles.

An RF testing method and arrangement of an electronic device utilize sensors for measuring the electronic device under test in conjunction with production of the electronic devices. A comparator performs a comparison between measurement signals and corresponding reference signals from a reference supply and a decision unit determines defectiveness of the electronic device based on the comparison.

This invention refers to 17alpha ,22 - dihydroxy Furan Steride compounds and its application. The compound' s structure formula is drawing in right graph, wherein the R1, R2 and R3 = H, C1-10 direct chain, cyclane group or alkenyl , triethylsilyl, dimethyl- tert-butylsilyl-biphenyl-tert-butylsilyl, methoxymethyl or tetrahydropyranyl. R4 = H see right formula a, b, C1-10 direct chain, cyclane group, alkenyl or alkynyl , R5 = C1-10 direct chain or cyclane group, R6 = H, C1-10 direct chain or cyclane group or alkenyl, triethylsilyl, dimethyl- tert-butylsilyl, biphenyl-tert-butylsilyl, methoxymethyl, tetrahydropyranyl. The start materials is diosgenin, which is easy available and cheap. Through F-cyclic degrading, the degradation product' s structure is converted into 17alpha,22 - dihydroxy furan steride compound. The compound again with F-cyclic restructure becomes the sapogenin, which is medicinal value. The process thereof is simple, adapted for industrialized production. It's glycoside of medicinal herbs Chonglou (Paris petiolata bak) sapogenin as one active ingredient, whose synthesis is provided herewith is effectively.

A capsule for beverages with a casing which includes a base wall and a side wall defining a cavity for combining an initial product and a fluid to obtain an end product, and an edge extending from the side wall. The capsule includes a covering element fixed to the edge to close the cavity hermetically, which is pierceable by an extracting element of a dispensing machine. The casing is made by forming a sheet of thermoformable plastics. The edge includes a sealing element with a protrusion facing the base wall that is obtainable by the sheet forming a further cavity suitable for containing a fluid. The covering element is fixed to also seal hermetically the further cavity to create a cushion that is deformable between the edge and the covering element that defines the sealing element arranged for sealingly engaging, when compressed, with an abutting element of a dispensing machine.

A track section for use with a patient carrying device, the device having a carriage, and the track section being configured such that the carriage can move along the track to carry a patient, the track section comprising a connecting piece, first and second carriage-supporting pieces, and at least one fixer fixing said connector piece to said first and second carriage-supporting pieces, the track section being shaped to traverse an angle of about 90 degrees.

A luminescence analysis apparatus, in particular for fluorescence microscopy, has a lighting assembly having a lighting unit which includes a preassembled module housed inside a housing; the module is defined by a LED mounted on a plate, and by an optical collimating element connected integrally to the LED and located in close proximity to the LED; the optical element is a catadioptric collimator made of transparent plastic material and designed to internally convey and transmit the light emitted by the LED, so as to generate a substantially parallel beam of light rays which is directed onto a luminesce sample for analysis.

The invention discloses a method for detecting chloride ion concentration in water, and particularly relates to a method for detecting chloride ion concentration in water by employing a microfluidic paper chip method. Reagents used in the method are a mercuric thiocyanate-methanol solution and a ferric nitrate-concentrated nitric acid solution. Through drawing a standard curve, a linear equation is fitted by using a proportional relationship between the chloride ion concentration and a gray value within a certain concentration range. According to the method disclosed by the invention, detection can be finished by virtue of photographic equipment and a computer; and the method is simple and convenient.

The invention relates to a geological exploration technology, in particular to a superficial layer geological displacement monitoring and early-warning system and a superficial layer geological displacement monitoring and an early-warning method. The system comprises a sensor module, a communication module, an information processing module and an early-warning module. When a geological accident occurs at the monitoring points, the angle sensor module can monitor the offset, the communication module transmits the monitored offset to the information processing module, the information processing module converts the offset into offset displacement, calculates the offset center and the average offset value of the monitoring point according to the offset displacement, judges whether the average offset value meets the early-warning condition or not and transmits triggering information to the early-warning module if the average offset value meets the early-warning condition, and the early-warning module sends out an early-warning signal according to the received triggering information. The monitoring and early-warning system and the monitoring and early-warning method are high in monitoring accuracy and realize all-weather and dynamic monitoring. The monitoring system is low in mounting, using and later maintenance costs. The monitoring and early-warning method is easy to operate and control and suitable for popularization.

A fuel module is used for supplying gas fuel, under an increased pressure, to a spray gun, a fuel cell device, a thermal spraying device, a thermal deburring device or a fullerene manufacturing device from a relatively low-pressure gas fuel source (such as a natural gas supplying system). The fuel module can also include an alternative system which can be operated selectably. The alternative system is used for supplying compressed natural gas to other applications and includes a device which is used for supplying fuel to one or more storage containers. The fuel module is characterized in that a discharge pressure of the gas fuel can be freely changed and can be adjusted in a preset manner within the capacity of a compressor device of the fuel module. The fuel module is also characterized by being used for cooling and filtering oil come from the compressor. The oil is cooled and filtered for prolonging a service life of the compressor. In addition, under poor working situations, operation of the fuel module can be carried out at a higher output gas pressure and a higher output gas pressure.

The invention discloses a green method for preparing amine derivatives from alcohols and amines. Different amine derivatives are prepared from alcohol and amine compounds by virtue of a controllable high-selectivity alkylation reaction under the catalysis of a nontransition metal catalyst and under the condition of no solvent; the nontransition metal catalyst is a halohydrocarbon and the dosage of the halohydrocarbon is 1-50mol%; a dehydration reaction can be directly performed on the alcohols and the amines under the catalysis of the halohydrocarbon to obtain the amine derivatives, and the reaction temperature ranges from 100 to 180 DEG C, the reaction time is 12-48 hours and the byproduct is water; the reaction needs to be performed under the protection of an inert gas, the conditions are simple and easy to operate, the byproduct is water, the reaction selectivity is controllable and the target selectivity is high. The requirements on the reaction conditions are reduced; the primary alcohol and the secondary alcohol can be used as alkylation reagents and suitable for the dehydration mono-alkylation reaction of the primary amine and the secondary amine and also for the dehydration dual-alkylation reaction of the primary amine; the green method for preparing the amine derivatives from the alcohols and the amines have a wide application range and ought to have certain research and industrial application prospect.

The invention discloses a method for preparing a key intermediate of an anti-influenza drug peramivir and belongs to the technical field of drug synthesis. The method includes taking a combination of cobalt and iron in a specific ratio as an additive and sodium borohydride as a reducing agent and reacting in an alcohol solvent. The method has the advantages of mild reaction conditions, simplicity and convenience in operation, low cost, high yield and high chiral purity.

The invention discloses a method for controlling pH of fermentation liquor in a fermentation process by utilizing bacteria Sinomonas atrocyanea capable of producing aflatoxin detoxifying enzyme and belongs to the technical field of microorganism. On the basis of a fermentation culture medium, the mixture of 0.4% (w/v) of glucose and 0.25%(w/v) of monopotassium phosphate is added, so that the pH value of fermentation supernate is controlled to be about 7.0, and the problem that enzyme activity detection is influenced by pH can be effectively solved.

The invention discloses a green synthesis method for beta-carboline heterocyclic compounds. The green synthesis method includes that the beta-carboline heterocyclic compounds are made of alcohols compounds, oxidative condensation, cyclization and re-oxidation one-pot cascade reaction is carried out on tryptamines compounds and alcohol in oxygen under the catalytic effects of catalysts TEMPO and catalysts TBN to obtain the beta-carboline heterocyclic compounds, the reaction temperatures range from 40 DEG C to 120 DEG C, and the reaction time ranges from 6 hours to 48 hours. The green synthesismethod has the advantages that inexpensive, easily available, stable and low-toxicity alcohols which can come from wide sources are used as the raw materials for the beta-carboline heterocyclic compounds, the aerobic oxidative condensation, cyclization and re-oxidation cascade reaction is carried out on the tryptamines compounds and the alcohol under the synergistic catalytic effects of the catalysts TEMPO and the catalysts TBN and acetic acid solvent conditions to prepare the beta-carboline heterocyclic compounds, target products are high in selectivity, a byproduct is water, and accordinglythe green synthesis method is high in efficiency and free of pollution.

Provided herein is a modified method of agglutination to detect infections caused by microorganisms including the steps of staining the test serum, plasma or blood or purified antibodies with a protein stain; mixing serum, plasma or blood with stained antibodies with an equal quantity of colored antigen particles on a glass slide; adding diluted Antiglobulin conjugated with Biotin to the mixture; subjecting the mixture to the step of mixing, adding diluted Avidin (preferably tagged with a visible indicator) to the mixture and thoroughly mixing all the ingredients.

The invention discloses a preparation method of a symmetric urea compound, which comprises the following steps: by using a hydroxamic acid compound as a raw material, sequentially adding an alkali anda solvent, reacting at 25-50 DEG C for 1-7 hours in an SO2F2 atmosphere, and carrying out aftertreatment on the reaction solution to obtain the symmetric urea compound. According to the invention, cheap, easily available and environment-friendly SO2F2 is used as an accelerant to efficiently promote the generation of an isocyanate intermediate to form a C-N bond. The generation of isocyanate avoids the use of a large amount of halogen or azide dangerous reagents, so that the compound can be used as a green substitute for standard treatment conditions in Curtius rearrangement and Hofmann rearrangement reactions. The amine source in the final product only comes from hydroxylamine, and no additional amine needs to be added, so that the substrate is wide in applicability, and the correspondingsymmetric urea compound can be obtained at a relatively good yield. The operation process is simple, the aftertreatment only needs filtering, and the method is suitable for large-scale preparation.

The invention provides a preparation method of an amide derivative. The method comprises the following steps: taking hydroxamic acid and an amine or thiol compound as raw materials, sequentially adding alkali and a solvent, carrying out a reaction for 2-7 hours at the temperature of 25-50 DEG C in an SO2F2 atmosphere, and after the reaction is finished, carrying out aftertreatment on a reaction solution to obtain the asymmetric urea compound or thiocarbamate compound. According to the invention, cheap, easily available and environment-friendly SO2F2 is used as an accelerant to efficiently promote the generation of isocyanate intermediates and form C-N and C-S bonds. The generation of isocyanate avoids the use of a large amount of halogen or azide dangerous reagents, so that the compound can be used as a green substitute for standard treatment conditions in Curtius rearrangement and Hofmann rearrangement reactions. The substrate is wide in applicability, and the corresponding asymmetricurea and thiocarbamate compounds can be obtained at a relatively good yield. The operation process is simple and suitable for large-scale preparation.

The invention discloses a method used for synthesizing 1,5,7-Triazabicyclo[4.4.0]dec-5-ene (TBD) via phase-transfer catalysis. According to the method, bis(3-amino propyl)amine and guanidine hydrochloride are taken as raw materials, macroporous anion exchange resin is taken as a phase-transfer catalyst, and TBD (1,5,7-Triazabicyclo[4.4.0]dec-5-ene) is synthesized in a water-oil double-phase solution. Beneficial effects are that: reaction temperature is low; reaction time is short; operation is simple; and the used phase-transfer catalyst and solvent mesitylene can be recycled.

A system and method of damping the ringing response of Band Pass Filters for use in impulse and single cycle modulation systems which are capable of carrying a high data rate and which are severely affected by the ringing response of the Band Pass Filter.

The invention discloses a synthesis method of a polysubstituted pyridine derivative and belongs to the technical field of organic chemistry. DBU and asymmetrically substituted 1,3-butadiyne are used as reaction materials to be subjected to a heating reaction to produce a polysubstituted pyridine compound with cesium carbonate as base in an acetonitrile solvent under the catalysis of CO2. CO2 activation is used to promote C=N bond breakage, the method is simple and convenient and adopts mild conditions, the functional polysubstituted pyridine compound is directly constructed, and the synthesismethod of pyridine heterocycles is broadened.