82results about How to "Prevent the spread of disease" patented technology

An electronic cigarette comprising a cigarette-holder is provided, the cigarette-holder includes a variable color material; and when the electronic cigarette is smoked, the variable color material generates a chemical reaction or a physical change and causes a color of the variable color material to change. Thereby whether the electronic cigarette has been smoked can be determined by observing the color change of the variable color material.

A pharmaceutical composition adapted for use as a spermicide, the composition comprising a gel-microemulsion comprising an oil-in-water microemulsion and a polymeric hydrogel. The gel-microemulsion can be used in a spermicidal method.

Also, a gel-microemulsion pharmaceutical composition adapted for use as a formulation base for additional therapeutic agents. Examples of additional agents include, anti-microbial agents and spermicidal agents. Such gel-microemulsions with additional therapeutic agents can be used in methods for appropriate therapeutic treatment.

Also, a gel-microemulsion pharmaceutical composition that is adapted for use as both a spermicide and formulation base for anti-microbial agents to provide a dual function contraceptive/anti-microbial formulation. Method of using such a composition as a dual function contraceptive/anti-microbial formulation are also included.

A system for sterilizing a sports ball comprises a housing; a door for the housing for opening and closing the housing and for permitting manual location of a ball in the housing; a sterilizing light for sterilizing a ball placed in the housing. The ball is rotatable in the housing such that the surface of the ball is exposed to the light. An elongated track extends from one end of the housing towards another end, and the light can be elongated from one end towards another end. There can be a series of rollers and one of the rollers can be motorized to rotate a ball. The housing can include an internal surface with a light reflective material

A system for sterilizing a sports ball comprises a housing; a door for the housing for opening and closing the housing and for permitting manual location of a ball in the housing; a sterilizing light for sterilizing a ball placed in the housing. The ball is rotatable in the housing such that the surface of the ball is exposed to the light. An elongated track extends from one end of the housing towards another end, and the light can be elongated from one end towards another end. There can be a support pivot on an outer surface of the housing permits the housing to be rocked about the pivot. There can be a series of rollers and one of the rollers can be motorized to rotate a ball. An outlet from the housing is directed to a tray for receiving a sterilized ball. The housing can include an internal surface with a light reflective material.

A Peripheral Intravenous Safety Catheter with Quick, Painless Puncture System (PISCQPPS) and a cannula with a retractile needle mounted in a manually operated bellows mechanism to prevent re-use, avoid accidental perforation and ensure safe disposal. This PISCQPPS offers the advantages of reducing or eliminating pain; reducing the possibility of multiple perforation; reducing the need for experience and technical know-how in the matter of injection; being fitted with a safety system; and easy to use. The PISCQPPS consists of two sequential operating systems - namely, a painless insertion system that is located inside a case, consisting of a catheter, a catheter holder, a trigger guard, a trigger-guard holder, a catheter-holder tube, a cannula, a cannula holder, a spring, a filter holder, and a filter; along with a safety system inside whose case the cannula holder, the cannula and the bellows all operate at the same time.

The invention discloses a high-yield cultivation method for pollution-free eggplants and relates to the technical field of pollution-free vegetable. The high-yield cultivation method mainly comprises the steps of (1) variety selection, (2) seedbed selection, (3) seed soaking and sprouting, (4) timely seeding, (5) seedling management, (6) grafting seedling, (7) soil preparation fertilization, (8) planting, (9) management after planting, and (10) pest control and prevention. According to the growth characteristic of the eggplants, the propagation of diseases through soil is prevented fundamentally in a grafting seedling mode, and the using amount and the residue amount of pesticides are decreased, so that high-quality pollution-free eggplants are produced; moreover, the yield and the quality of products are improved, and the economical benefit is increased.

The invention discloses a composite book type sterilizing film. The sterilizing film is of a three-layer structure, i.e. A layer, B layer and C layer, wherein the A layer is a sterilizing layer and comprises 92 to 94 percent of polypropylene, 3 to 5 percent of antibacterial master material and 3 percent of anti-adhesion agent; the B layer is a core layer and comprises 97 to 99 percent of polypropylene and 1 to 3 percent of anti-static smooth master material; the C layer is a composite contact layer and comprises 96 to 98 percent of polypropylene and 2 to 4 percent of anti-adhesion agent. A production process of the composite book type sterilizing film comprises the following steps of (1) feeding the materials; (2) performing melt extrusion; (3) casting sheets; (4) longitudinally stretching the sheets; (5) horizontally stretching the sheets; (6) performing drawing and edge cutting; (7) coiling; (8) cutting; and (9) obtaining the finished product. A 100 percent sterilizing effect can be achieved, bacteria can be directly killed after different people use the film, the transmission of diseases is avoided, and meanwhile the repeated utilization factor of the product is also increased. Therefore, the sterilizing film has great market prospects.

The determination of the nucleotide sequence of HTLV-III DNA; identification, isolation and expression of HTLV-III sequences which encode immunoreactive polypeptides by recombinant DNA methods and production of viral RNA are disclosed. Such polypeptides can be employed in immunoassays to detect HTLV-III.

An animal barn includes air inlets which are filtered to extract pathogens and a plurality of extraction fans for generating an air stream so as to draw replacement air into the containment area through the air inlets. Each fan has a housing mounted in a wall with an outlet duct extending through the wall to an outlet opening outside the wall. A damper flap is mounted on the fan suspended by a hinge at an upper edge so as to extend in a closed position across the opening in a mounting plate. The damper flap is movable to an open position under forward air flow from the fan and closes against a resilient deformable seal to seal the damper flap to prevent reverse flow of pathogen contaminated air through the fan housing when the fan is shut off. An adjustable abutment member can act to hold the flap partly open against opposing wind forces during low fan operation.

The invention discloses a comprehensive cyclic utilization and treatment method for municipal waste, belonging to the technical fields of comprehensive treatment of municipal refuse and cyclic reutilization of resources. The comprehensive cyclic utilization and treatment method comprises the following steps: (1) building a farm, an excrement treatment pond, a forest zone and a refrigeration house; (2) collecting waste in a classifying manner; (3) transporting the classified and collected kitchen waste to the refrigeration house for centralized treatment, particularly transporting classified and collected recyclable waste, unrecyclable waste and harmful waste to a waste treatment plant for sorting; (4) extracting grease from bones and grease of livestock, and making squeezed bone dreg into bone meal; (5) transporting fresh residual vegetables, food residues and soup, melon shells and fruit shells in the refrigeration house to the farm for use; (6) transporting excrement waste and livestock bristles to the excrement treatment pond built in the farm; and (7) transporting agricultural products produced in the farm to a city to meet city living needs, and cyclically treating and utilizing the produced waste according to the previous steps.

The invention provides a method for utilizing citriodora oil to extract waste liquid to prepare a mosquito repellent and relates to a method for preparing the mosquito repellent. The method comprises utilizing aqueous phase distillate flowing out of an oil-water separator of a citriodora oil extractor, enabling p-menthane-3, 8-diol in the aqueous phase distillate to be dissolved out by adding sodium chloride or potassium chloride, adding an organic solvent to perform extraction, then performing pressure-reducing distillation on the organic solvent to obtain light yellow oily liquid, freezing the light yellow oily liquid, dissolving out and crystallizing, filtering to obtain p-menthane-3, 8-diol, finally evenly mixing and dissolving 10%-50% of p-menthane-3, 8-diol, 5%-20% of propylene glycol, 10%-50% of 75% ethanol, 2%-10% of glycerol and 2%-10% of 1,3-butanediol according to mass ratio, and obtaining the mosquito repellent. The method is simple to operate, reduces environmental pollution and harm caused to the humans, and is low in cost and convenient to popularize and use.

The invention relates to a tip brush thread made of reproducible biobased raw materials and a preparing method thereof. The invention mainly provides the preparing method for the tip brush thread, which comprises the following steps: a) providing the brush thread; b) adding treatment fluid into a tip brush thread treatment trough; and c) soaking the brush thread obtained in step a) into the treatment fluid for treatment, and simultaneously improving the sharpening effect by mechanically stirring and/or circulating the treatment fluid through an auxiliary device, wherein the depth of the brush thread in step c) soaked in the treatment fluid is changed along with the time.

The invention relates to a chlorine dioxide sterilization purifying system for central air conditioner. It belongs to sanitary sterilizing technique field. Its characteristic is: connecting exhaust pipe of the chlorine dioxide gasifier which includes desorption tower; exhaust pipe and air pump with air-return pipe of the central air conditioner. High-purity chlorine dioxide solution generated from complete reaction flows from top to bottom in desorption tower and completes mass-transfer process with flowing air from bottom to top. It makes chlorine dioxide gas separate completely. The sterilizing effect is good and the working state of the system is regulated automatically.

A game call includes a thermoplastic body having a front edge with a cutout formed therein. An insert having a flexible diaphragm stretched across an open-ended frame is disposed in the cutout. The game call may be manufactured by providing a blank of thermoplastic material with a central cutout. The insert is placed on one half of the bank, and the other half of the blank is folded over to trap the insert. The halves of the blank are bonded to each other with heat and pressure or an adhesive.

The invention discloses an intelligent shoe rack for shoe selling and relates to the technical field of shoe selling equipment. The intelligent shoe rack comprises a casing, wherein a stand column isfixedly connected with one surface of the casing, one surface of the stand column is fixedly connected with a plurality of display stands through connecting rods, one surface of each display stand isfixedly connected with an electronic scale, one surface of each display stand is fixedly connected with a small display screen, one surface of the stand column is fixedly connected with a large display screen, one surface of the stand column is fixedly connected with a box, and a plurality of shoe storage chambers are arranged in the box. Through cooperation of the display screens and the displaystands, related information such as manufacturers, production processes, brand culture and prices of shoes is displayed on the display screens, so that customers can fully and directly know information about the shoes, the shoe buying desire of the customers is aroused, and the labor intensity of salesmen is reduced. Shoes tried by the customers are automatically sterilized by ultraviolet sterilization lamps in the shoe storage chambers, the condition that a large number of bacteria are bred in the shoes is prevented, and disease spreading is avoided.

The invention provides an economical and efficient production method of a tobacco male sterile first generation hybrid seed. The method includes: at an altitude of less than 700 meters, under the climate conditions meeting the requirements of early vegetative growth and later reproductive growth of tobacco plants, conducting seedling culture on a maternal tobacco plant and a paternal tobacco plant separately, then employing isolation planting, performing topping on the maternal tobacco plant, then collecting paternal pollen and preparing pollination, during pollination, adding starch and blending them, adopting an artificial pollination pen or pollination gun to perform pollination, carrying out deblossoming on the maternal tobacco plant both before and after pollination, and when the capsule pericarp browning reaches more than 80%, conducting single fruit harvesting in batches and performing drying, then conducting threshing processing to obtain the male sterile first generation hybrid seed. The method provided in the invention has the advantages of reasonable design, low production investment, and high seed yield. On the basis of ensuring a variety purity (99%) and a seed germination rate (95%), maximization of a high-quality germplasm propagation coefficient is realized, the seed yield is greatly improved, and the seed production cost is decreased significantly.

The present invention relates to a squatting pit type toilet having no need of flushing with water. It is characterized by that it includes a room body, in the room body a squatting pit type non-flushing toilet pan and frame body for supporting said squatting pit type non-flushing toilet pan. The described squatting pit type non-flushing toilet pan is a closed automatic squatting position, its lower portion is a night soil channel positioned in the frame body, one end of said night soil channel is connected with a treatment device which is controlled by a control device, in the night soil channel a screw conveying shaft is mounted and is connected with the control device.

A medical safety injector comprises an injection needle assembly, an automatic needle tip recycling device and an injector. The medical safety injector is characterized in that a draw bar, a spring and a front plug are serially connected rotationally and are mounted in an inner cavity of a push rod, the front plug is fastened in an inner hole at the front end of the push rod, and the draw bar penetrates through a side seam of the push rod and is suspended in a slit of a side wall of a handle of an outer barrel. During injection, the push rod is pressed to drive the front plug to move, so that the spring can be lengthened; after the injection is completed, the push rod is pressed again, the annular wall of the front end of the push rod drives a damping ring to move forwards, an embedded needle base is released, an expansion portion of the front plug is simultaneously embedded with an annular bump of an inner hole of the needle base, the front plug under pressure is released from a limitation effect of the inner hole at the front end of the push rod, the spring retracts to drive the front plug, the needle base and the needle tip to return the inner cavity of the push rod, and an injection needle is completely shielded and cannot be released or exposed due to the fact that the total length of the draw bar, the spring, the front plug, the needle base and a needle tube is smaller than the length of the inner cavity of the push rod; as a dovetail narrow portion of a slit at the rear end of the push rod penetrates through a transverse bump of the draw bar, the push rod is limited at the corresponding position and cannot be pulled out again; and the needle base is destroyed, so that the injector is prevented from being reused. Owing to the fact that the needle base is structurally separated from the automatic needle tip recycling device, the injection needle of the medical safety injector can be replaced as needed before the medical safety injector is used, so that the medical safety injector brings convenience for clinical use.

The invention relates to an automatic opening single-leaf door, and the door comprises a door frame, a door plate, a door handle, a lock pin, a lock hole, a signal collection system, a control system, and an opening/resetting mechanism. The door plate is in pivoting connection with the door frame through door shafts at two ends of the door plate. The signal collection system is connected with the control system, and the control system is connected with the opening/resetting mechanism. The signal collection system comprises a voice recognition device and a position sensing device. When the voice recognition device detects a voice opening instruction, the position sensing device senses the direction of a person or object relative to the door plate and the distance from the person or object to the door plate. When the position sensing device senses that the person or the object is located in a safety distance range of the door plate, the control system enables an opening signal to be transmitted to the opening mechanism, and the opening mechanism enables the door plate to be opened automatically. When the position sensing device senses that the person or object leaves from a dangerous distance range of the door plate, the control system enables a resetting signal to be transmitted to the resetting mechanism, and the resetting mechanism enables the door plate to be automatically closed.

The invention relates to a peptide nucleic acid probe for rapid fluorescence in-situ hybridization detection of enterococcus faecalis and/or other enterococcocci. The DNA sequence of the probe is shown as the SEQ NO:1 or the SEQ NO:2. The invention further discloses a reagent kit for appraising the enterococcus faecalis and/or other enterococcocci in samples and the drug susceptibility of the enterococcus faecalis and/or other enterococcocci through the probe and provides a using method of the reagent kit. The probe and the reagent kit can be used for detecting the enterococcus faecalis and/or other enterococcocci in the samples and the drug susceptibility of the enterococcus faecalis and/or other enterococcocci. The DNA extraction step is avoided, and the time for a whole appraising process is generally less than two hours; besides, the false positive rate is low, the number of steps is small, efficiency is high, sensitivity is high, and specificity is high. The enterococcus faecalis and other enterococcocci can be rapidly and accurately detected, and important significance to food safety guaranteeing, environmental sanitation guaranteeing and pathophoresis preventing is achieved.

The invention discloses a method for preparing a flue-cured tobacco float breeding matrix by using wheat straws and a flue-cured tobacco float breeding nutrient solution. The method comprises the following steps of: pre-treating the wheat straws, and performing mixed piling-up fermentation treatment on the pre-treated wheat straws and pig manure, or chicken manure, lime, soil and the like so as to prepare the flue-cured tobacco breeding matrix, wherein the raw materials replace non-renewable peat, so the effects of low cost, high quality and sources; the piling-up fermentation temperature is over 60 DEG C, and the piling-up fermentation can last for more than 15 days, so that pathogenic bacteria can be killed effectively, and the disease and pest spreading can be prevented; the obtained breeding matrix is loose and porous, beneficial to growth of root systems of tobacco seedlings and high in water and fertilizer keeping capacity; the nutrient solution matched with the flue-cured tobacco float breeding matrix is complete in nutrition, and reasonable in ratio, saves fertilizers, and reduces the cost; growth conditions and agricultural indexes of the tobacco seedlings bred by using the matrix and the nutrient solution disclosed by the invention are equal to those of tobacco seedlings bred by using a peat matrix.