265results about How to "Cheap to manufacture" patented technology

The invention discloses a self-adaption noise reduction device for low frequency noise in an indoor environment. The self-adaption noise reduction device for low frequency noise in the indoor environment comprises a primary microphone, an inverse sound source, a frequency adjusting device and a secondary microphone. The secondary microphone is a high-sensitivity omnidirectional electret secondary microphone with the response frequency ranging from 20Hz to 20KHz. The primary microphone and the secondary microphone are connected through an audio cable and a 16-bit analog-to-digital converter respectively. The 16-bit analog-to-digital converter is connected with an I/O read-write parallel interface of the frequency adjusting device through a 16-pin parallel interface bus. The reverse sound source is connected with an MCU processor of the frequency adjusting device through a serial analog-to-digital converter. The self-adaption noise reduction device for low frequency noise in the indoor environment is particularly suitable for low frequency noise processing in a household environment, low frequency noise emitted by indoor electronic devices and electrical devices can be obviously reduced, the living environment is improved, and the living quality is improved. The self-adaption noise reduction device for low frequency noise in the indoor environment is small in size, capable of being used once a system is powered, free of a complex installation process, low in manufacturing cost and capable of being completely purchased and deployed by general users.

A lateral flow test system together with methods for its use in the detection of one or more analytes, or components, of interest within a sample, such as a biological sample, is provided. The system comprises a liquid formulation of a gold conjugate and a lateral flow assay device that does not include a conjugate pad having conjugate dried thereon.

The invention relates to a preparation method of a special low-density grinding column for a cement grinding mill. The preparation method comprises the steps of with bauxite, alumina powder and the like as main raw materials and chromium oxide, zirconium oxide, calcium oxide, magnesium oxide, ferric oxide, manganese oxide, titanium oxide, silicon dioxide and the like as modified raw materials, adding alumina sol, silica sol and metal salt into slurry at a grinding stage; molding by rolling, isostatic pressing or machine pressing to obtain a green body; and calcining after drying the green body to obtain the low-density grinding column. By virtue of scientific proportion design, strict process control and unique calcining system, the special low-density grinding column disclosed by the invention is low in cost, excellent in wear resistance, lower in power load as comparison with a high-density metal grinding body, suitable for substituting a metal grinding body in cement grinding, iron ore grinding and gold ore grinding and capable of reducing the electric consumption for grinding by 30-50%.

The invention relates to a wood bamboo material corrosion and discoloration prevention triazole composition and a preparation method thereof. The preparation method comprises the following steps: preparing a triazole concentrate comprising 4.1-15.6wt% of a triazole compound, 33.6-67wt% of an ethanol and N,N-dimethyl formamide (DMF) combination, 20.7-26.5wt% of an amine oxide and quaternary ammonium salt combination or a calcium dodecyl benzene sulfonate and fatty alcohol polyoxyethylene ether (MOA-15) combination, and the balance of water, wherein the triazole compound is hexaconazole, cyproconazole, epoxiconazole, triadimenol, or a propiconazole/tebuconazole combination with the ratio of propiconazole/tebuconazole of 1:0.68-0.95; and adding parts of water to the triazole concentrate, adding 5-chloro-2-methyl-1-isothiazoline-3-one/2-methyl-1-isothiazoline-3-one (CMIT-MIT), and diluting the above obtained solution to obtain a triazole composition operating fluid. When the triazole composition operating fluid is used to carry out vacuum pressurizing treatment on a wood bamboo material, the wood bamboo material is dried until the water content of 20-25%, 5-9% low-molecular weight (the molecular weight is smaller than 1000) phenolic resin (PF) is used to carry out secondary vacuum pressurizing treatment, and the two-stage treated wood bamboo material has excellent corrosion, mildew and discoloration resistance and excellent triazole anti-loss performance after being dried.

The invention discloses a medicine bottle liquid level detection method based on image processing. The method includes the steps of collecting a typical medicine bottle image to establish a reference template image, establishing matching templates and coordinate systems of the matching templates, matching a plurality of collected image of a detected medicine bottle with the matching templates in a one-to-one mode to obtain a displacement matrix of the images of the detected medicine bottle obtaining a corrected image of the images of the detected medicine bottle through affine transformation, segmenting the corrected image to obtain detection areas, extracting liquid level strip shapes, obtaining the liquid level lowest point on the basis of the characteristics of the liquid level strip shapes, and judging the qualification of the medicine bottle according to the relation between the liquid level lowest point and the set liquid level lowest point threshold value alpha and the relation between the liquid level lowest point and the set highest threshold value beta. The method is rapid in detection speed, and the total processing time of all the images of liquid medicine of the single bottle is within 100 ms. The sub-pixel-level accuracy is achieved for detection, the pixel deviation caused by vibration of a mechanical platform is eliminated, and the detection accuracy is greatly improved.

Disclosed is a pressure-measuring plug for a combustion engine. The pressure-measuring plug comprises a plug body and a ring-shaped sensing structure. The plug body comprises an external thread for mounting the plug body into a cylinder head of the combustion engine. The ring-shaped sensing structure comprises an outer section and an inner core. A proximal end of the plug body is attached to the outer section. The inner core comprises a through hole for receiving a rod-shaped element. The ring-shaped sensing structure allows the inner core to move relatively to the outer section along a cylinder axis of the ring-shaped sensing structure. The inner core further comprises an internal thread for mounting in the through hole a rod-shaped element with an external thread.

A movement input device for use on a touch screen and a portable electronic device including such a device are described. The movement input device includes a fastening unit securing the movement input device on the portable electronic device, and a user input unit extending through the fastening unit. The user input unit includes a user actuation part protruding from a top side of the fastening unit and actuatable by a user for free angular movement around an axis (X) and a touch screen contact part protruding from a bottom side of the fastening unit, which is arranged to contact the touch screen in a position where at least an angle of the contact position corresponds to an angle of the user actuation part. Movement of the user input unit is thus detected on the touch screen.

The module comprises a first substrate and at least one chip mounted on the first substrate. A second substrate is mounted to the first substrate and has an opening therein. The opening is lined with the at least one chip. The second substrate is overmolded and the first substrate is electrically connected to the second substrate by at least one first electrical connector. At least one second electrical connector extends from the second substrate through the overmold and has its exposed ends for electrical connection to an external module. The external module may be mounted to the first module in order to form a package on package assembly.

The invention discloses a thin-film solar cell structurally comprising a substrate layer, a back electrode layer, a P-type CIGS (copper, indium, gallium and selenium) thin-film layer, an N-type CIGS cushion layer, a P+ layer, a P-type a-Si (amorphous silicon) layer, an I-type a-Si layer, an N-type a-Si layer, an N+ layer and an TCO (transparent conducting oxide) layer. The thin-film solar cell of the invention is an a-Si P-I-N junction layer has reasonable thickness design and the NIR (near infrared spectrum) energy can be completely absorbed by a CIGS P-N junction layer, thus greatly increasing the power of the thin-film solar cell; moreover, the P+ layer and the N+ layer which are ultrathin but heavily doped are respectively arranged outside the P-type a-Si layer and the N-type a-Si layer of the a-Si P-I-N junction layer, thus increasing the electric-field intensity of the I-type a-Si layer and increasing the power of the thin-film solar cell. Compared with the existing double-junction-layer structured solar cells of the same type, the thin-film solar cell of the invention can increase the power thereof by about 1.5% on average. The thin-film solar cell of the invention further has the advantages of high reliability and low manufacturing cost.

The invention discloses ion exchange equipment, which comprises a shell 1, a water inlet 2, a water distribution device 3, a resin inlet 4, a resin filler layer 5, a water collection device 6, a resin outlet 7 and a water outlet 8, wherein the water inlet 2 is formed on the top of the shell 1; the water distribution device 3 is arranged on the upper part in the shell 1, and comprises a water distribution plate 9 and a water distributor 16; the water collection device 6 is arranged on the lower part in the shell 1, and comprises a water collection plate 11 and a water collector 15; the resin filler layer 5 is arranged above the water collection device 6; the upper end of the resin outlet 7 is arranged at the central point of the water collection device 6 and is connected with the bottom of the shell 1; the bottom of the shell 1 is provided with the water outlet 8; a spray system 10 is arranged under the water distribution plate 9; and the water collection plate 11 is a single arc plate. The ion exchange equipment can make water distribution uniform, also can ensure that ineffective resin filler thoroughly conveyed, and has the advantages of long water making period, high water making quality, simple structure and low cost.

The invention belongs to a wood and bamboo material corrosion and mold prevention modified combination agent and a wood and bamboo material treating method. The wood and bamboo material corrosion andmold prevention modified combination agent comprises, by weight, 0.04-0.10 part of triazole, 0.05-0.12 part of 3-iodo-2-propynyl butylcarbamate, 1-6 parts of water soluble dyes, 1-6 parts of dyeing assistants, 1-6 parts of fire retardants and 1-10 parts of polymerization inhibitors. A wood and bamboo material treated through the modified combination agent can simultaneously have the functions of corrosion prevention, mold prevention, dyeing, inflaming retarding and pharmaceutical composition loss resistance, and has the advantages of easy operation, easy implementation, low preparation and using cost, good durability and long service life.

The invention provides a compound traditional Chinese medicine composition capable of inhibiting colorectal liver metastases. The compound traditional Chinese medicine composition is prepared from the following components in parts by weight: 15 to 30 parts of prepared radix astragali seu hedysari, 15 to 30 parts of fried radix codonopsis, 10 to 20 parts of fried bighead atractylodes rhizome, 15 to 30 parts of poria cocos, 15 to 30 parts of rhizoma dioscoreae, 5 to 10 parts of prepared liquorice root, 10 to 20 parts of prepared fructus mume, 10 to 20 parts of rhizoma sparganii, 10 to 20 parts of curcuma zedoary, 15 to 30 parts of herba agrimoniae and 15 to 30 parts of herba patriniae. The invention further discloses a preparation method of the compound traditional Chinese medicine composition and application of the compound traditional Chinese medicine composition to preparation of medicines for treating the colorectal liver metastases.