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477 results about "Basic level" patented technology

Thermally Controlled External Cavity Tuneable Laser

The present invention relates to an external-cavity tuneable laser including a gain medium (2) and a tuneable mirror (8), wherein at least the tuneable mirror is in thermal contact, with a thermally conductive platform (10). The tuneable mirror lays substantially horizontally on the thermally conductive platform significantly thereby improving the thermal contact of the tuneable mirror with the platform. The laser beam from the gain medium is directed onto the tuneable mirror, which is mounted substantially horizontally with respect to the thermally conductive platform, by means of a deflector (6) that deflects the beam or a large part of it towards one of the principal surfaces of the tuneable mirror. The resulting laser cavity is therefore a folded cavity. The thermally conductive platform is preferably thermally coupled to a TEC (11) that provides thermal control for the platform. In a preferred embodiment, the deflector is a beam splitter that deflects part of the incoming light and transmits the remaining part. A beam splitter as deflector a more compact laser assembly can be envisaged. According to a preferred embodiment of the invention, the portion of light transmitted through the beam splitter forms the output laser beam. In other words, the external-cavity laser outputs a laser beam on the side of the wavelength selective elements (the tuneable mirror and, if any, the channel grid), i.e., on the side of the front facet of the laser diode. With this laser design, a collimating lens to collimate the output laser beam is not necessary.
Owner:GOOGLE LLC

Water conservation temperature reduction half-flexible pavement and construction method thereof

The invention discloses a water conservation temperature reduction half-flexible pavement. The pavement is formed by porous basic asphalt mixture; the pore of the porous basic asphalt mixture is filled by cement base water conservation mucilage. The porous basic asphalt mixture is formed by mixing high viscocity rubber modified asphalt with the brookfield viscosity of 1.5 to 4.0 Pa-S, aggregate and mineral powder when the detection temperature is 175 DEG C. The construction method is as follows: the porous basic asphalt mixture is paved on a compacted basic level; the cement base water conservation mucilage is used for grouting construction on the porous basic asphalt mixture; the pore of the porous basic asphalt mixture is filled; redundant sizing agent on the pavement is cleared. The water conservation temperature reduction half-flexible pavement overcomes the respective shortcoming of cement pavement and asphalt pavement, has the high strength, good toughness, long service life, gives the particular water conservation temperature reduction function on the pavement; the pavement temperature can be reduced by more than 10 to 20 DEG C; the water conservation temperature reduction half-flexible pavement has the remarkable ecological, technical, economic and social benefits.
Owner:CHONGQING JIAOTONG UNIVERSITY

Explosion welding method for composite material of aluminum-steel

The present invention discloses an explosion welding method with aluminum-steel composite materials; a double-layer aluminum plate (4) is arranged on a basic level steel plate (6) through a support (5); a buffer protecting layer is paved on the surface of the double-layer aluminum plate; an explosive (2) is placed on the surface of the buffer protecting layer in the way of stage gradient style, so that per unit area explosive capacity is stepped gradually decreased from the center of the double-layer aluminum plate to two ends; a large acreage of the aluminum - steel composite materials is gained through the explosion welding method; per unit area explosive capacity is stepped gradually decreased from the center of the double-layer aluminum plate to two ends; the material of the basic level steel plate is a carbon steel or a low alloy steel; the material of the double-layer aluminum plate is a pure aluminum or an aluminum alloy with less or equal to 0.1 percent of Mg. The explosion welding method of the present invention has the advantages of high intensity and equal strength in composite bonding, no excessive melting, delaminating, or non-compounding phenomenon at an interface, being capable of making thick double-layer aluminum plate composite materials through once explosion welding, convenient in production and higher in efficiency.
Owner:725TH RES INST OF CHINA SHIPBUILDING INDAL CORP

Fluorescent immunochromatography method for whole quantitative detection of C-reactive protein and reagent kit thereof

ActiveCN102539785ASolve the backgroundSolve the signal indistinguishableBiological testingFluorescence/phosphorescenceBasic levelQuantum dot
The invention discloses a fluorescent immunochromatography method for whole quantitative detection of C-reactive protein and a reagent kit thereof. The fluorescent immunochromatography method for the whole quantitative detection of the C-reactive protein (CRP) utilizes excellent fluorescent characteristics of quantum dots, and combines double-color marking technology and immunochromatography technology to achieve fluorescent quantitative detection on the basis of optimizing each constituent elements of test paper. Compared with a conventional colloidal gold immunochromatography method, the fluorescent immunochromatography method for the whole quantitative detection of the CRP has the advantages of being good in stability, low in non-specificity, high in flexibility, wide in linear range and accurate in quantifying. The reagent kit of the fluorescent immunochromatography method can perform the whole quantifying and can simultaneously predict and evaluate infectious diseases, antibiotic effects and cardiovascular and cerebrovascular diseases. The fluorescent immunochromatography method for the whole quantitative detection of the CRP and the reagent kit of the fluorescent immunochromatography method are suitable for various-level hospitals, and particularly contribute to wide popularization in basic-level hospitals and clinics.
Owner:SHENZHEN KANGMEI BIOTECH

Systematic solution for voltage quality evaluation and optimization of low-voltage transformer area distribution networks

The invention discloses a systematic solution for voltage quality evaluation and optimization of low-voltage transformer area distribution networks. The systematic solution comprises the following steps: collecting topological structures, circuit parameters, phase sequence of tail end users, and load curve characters of the distribution networks in all low-voltage transformer areas to establish a low-voltage transformer area mathematical model; calculating average power or instantaneous power of users according to user consumption data in a marketing system of a power supply enterprise, and computing an active power, a line loss rate and each node voltage value of each section of a line through a forward-backward sweep distribution system power flow calculation method; performing optimal design and simulation analysis on the low-voltage transformer areas through modes of transferring load, newly increasing lines, changing lines and adjusting phase sequence to realize the optimal line loss rate and investment costs comprehensively. According to the solution, with a developed software platform, workload of line patrol and modeling in the low-voltage transformer areas can be greatly reduced, real-time data updating of the low-voltage transformer areas can be realized by basic-level power supply stations (offices) through combining with corresponding management measures, and the operation and maintenance level of the low voltage distribution networks can be improved.
Owner:广东力行电气技术有限公司

Power supply reliability fuzzy comprehensive evaluation method based on improved membership degree function

The invention discloses a power supply reliability fuzzy comprehensive evaluation method based on an improved membership degree function. The method comprises the following steps: (1) selecting N basic level indexes capable of reflecting a current situation of a power supply reliability of a power distribution network to establish an evaluation index system; (2) dividing quality grades of N evaluation indexes into six quality grades, which respectively are "optimal", "excellent", "good", "mean", "qualified" and "unqualified"; (3) determining a comprehensive weight for each of the evaluation indexes in the evaluation index system by employing subjective and objective analysis methods which combine an improved hierarchical analysis method with a variation coefficient method; and (4) carrying out scoring on each evaluation index to obtain a scoring value of the each evaluation index. According to the method disclosed by the invention, the problem that a relation is established difficultly between two quality grades of the evaluation indexes in power supply reliability fuzzy comprehensive evaluation field is solved; and meanwhile, the problem that when index data are similar, evaluation results are consistent and cannot be distinguished is solved, and more fine power supply reliability fuzzy comprehensive evaluation is realized.
Owner:国网江西省电力有限公司经济技术研究院 +1

Mesh-based flood control command studying and judging system

The invention discloses a mesh-based flood control command studying and judging system. The system comprises the steps that firstly, mesh generation is performed in an area under administration at first, meshed are adopted as units, and one or more water and rainfall condition information monitoring stations are arranged in each mesh; the water and rainfall condition information monitoring stations inside each mesh transmit current water and rainfall condition data to the system in real time; the water and rainfall condition data of the corresponding meshes is input into a hydrological prediction model for performing prediction analysis, and future rainfall predication data of each mesh is obtained; similarity analysis is performed through the flood control command studying and judging system, and historical water and rainfall condition data with the highest similarity with the current water and rainfall condition data inside the corresponding meshes is obtained; the current water and rainfall condition data, the historical water and rainfall condition data with the highest similarity with the current water and rainfall condition data and the future rainfall predication data of each mesh, socioeconomic data and basic level flood control system data are visually displayed in a GIS map through the flood control command studying and judging system. By mesh generation of the area under administration, the multiple meshes are formed, and the flood control early warning is more visualized.
Owner:SICHUANG TECH CO LTD

Combined bevel conveyor

The invention discloses a combined bevel conveyor, aiming to overcome the defects of complicated equipment operation and large occupied area in the prior art and comprising an engine base with a caster and an electric control cabinet, wherein the engine base is provided with a bevel conveying device, the elevation of the bevel conveying device can be adjusted at random and the bottom end thereof is hinged with the engine base; the top end of the bevel conveying device is provided with a horizontal conveying device at a basic level the lower surface of which is provided with a telescopic mechanism, the telescopic mechanism comprises a plurality of legs arranged at the lower surface thereof, a roller is arranged at the lower surface of each leg, and a guide rod is arranged at the top end of the bevel conveying device and has functions of guiding and suspending the telescopic mechanism; and a clean and jerk device is arranged at the lower surface of the bevel conveying device. The combined bevel conveyor has adjustable conveying height and strong adaptability, and the horizontal conveying device can realize large stroke movement and small occupied area of the whole set and easy storage, can be dissembled to be encased and packaged so as to facilitate long distance transportation, and also can be disassembled for single use.
Owner:宁波亿普瑞物流自动化分拣设备有限公司
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