151 results about "Action spectrum" patented technology

Coupling of anodic electrochromic compounds by a covalent bond or a bridge link which provides for electronic communication between the coupled electrochromic compounds results in coupled electrochromic compounds which exhibit greater stability as well as electrochromic activity that differs from the monomeric electrochromic compounds. Extension of the absorption spectrum into the near-infrared region of the spectrum is frequently observed. The coupled electrochromic compounds are highly suitable for use in electrochromic media used to produce electrochromic devices.

A method determines an analyte concentration in a sample including the analyte and a substance. The method includes providing an absorption spectrum of the sample. The absorption spectrum has an absorption baseline. The method further includes shifting the absorption spectrum so that the absorption baseline approximately equals a selected absorption value in a selected absorption wavelength range. The method further includes subtracting a substance contribution from the absorption spectrum. Thus, the method provides a corrected absorption spectrum substantially free of a contribution from the substance.

Hybrid metrology apparatus (1000, 1100, 1200, 1300, 1400) measures a structure (T) manufactured by lithography. An EUV metrology apparatus (244, IL1/DET1) irradiates the structure with EUV radiation and detects a first spectrum from the structure. Another metrology apparatus (240, IL2/DET2) irradiates the structure with second radiation comprising EUV radiation or longer-wavelength radiation and detects a second spectrum. Using the detected first spectrum and the detected second spectrum together, a processor (MPU) determines a property (CD/OV) of the structure. The spectra can be combined in various ways. For example, the first detected spectrum can be used to control one or more parameters of illumination and/or detection used to capture the second spectrum, or vice versa. The first spectrum can be used to distinguish properties of different layers (T1, T2) in the structure. First and second radiation sources (SRC1, SRC2) may share a common drive laser (LAS).

The invention relates to a donor-recipient typed conjugated polymer containing two thiofuran and pyrrole and the preparation method and applications thereof. Using a construction mode of donor-recipient typed co polymerization for preparing the conjugated polymer can absorb action spectrum, cover UV-Visible and near infrared region to fully use sunlight. The donor uses a constitution unit of two thiofuran and pyrrole with a good plane performance, high density of electron cloud and easy preparation. The preparation of the conjugated polymer is easy, with absorbing spectrum in the UV-Visible and near infrared region of 300 to1000nm and the energy transforming efficiency being 3 percent. The performances of prepared solar batteries are respectively: white light (light intensity of 100mW/cm<2> ) irradiating, the open-circuit voltage is equal to 0.37 to 0.54 V; the short circuit current is equal to 6.69 to 13.8mA/cm<2>; the packing factor is equal to 0.35 to 0.44; and the efficiency of energy transformation is equal to 1 to 3 percent.

The invention discloses an infrared cavity ring-down spectroscopy trace gas detection method based on quantum cascade laser; comprising the following steps: using a tunable quantum cascade laser as alight source, and selecting measuring waveband and wavelength scan step length aiming at spectrum line characteristic of the gas to be detected; respectively measuring the cavity ring-down time of each wavelength in the cavity with absorption or without absorption by cavity ring-down technique, and calculating the gas absorption coefficient of corresponding wavelength so as to obtain a relation curve that is an absorption spectrogram of the measured gas absorption coefficient and toned laser wavelength. The spectrogram is contrasted with spectrum line characteristic of corresponding gas in HITRAN database, thereby being capable of analyzing and determining weather the measured gas contains the predetermined gas component; the absolute concentration of the gas to be measured can be calculated and obtained and the absolute concentration of the gas to be measured can be measured through scaling measurement by using absorption peak wavelength of the absorption spectrum as the best detection wavelength and the relation among the gas absorption coefficient of the wavelength, the absorption cross section and concentration. The method has high measuring sensitivity and high property of resisting interference so that the fast and exact on-line analysis and detection of multiple trace gases are easily realized.

The new type of styryl radical substituted boron fluoride complexed dipyrrolyl methane fluorescent dyes are prepared through complexing boron fluoride and dipyrrolyl methane fluorescent dye and further reaction with benzaldehyde compound. Partial single styryl radical substituted dyes have absorption spectrum and emission spectrum in near infrared region, while all double styryl radical substituted dyes have absorption spectrum and emission spectrum in near infrared region. When the dye structure has amino radical, it will produce ICT under the excitation of light to raise fluorescent quantum efficiency rapidly. Therefore, the present invention may be used as pH probe in testing pH value and in designing high sensitivity ion probe and sugar probe.

The invention discloses a terahertz time domain spectroscopy-based textile fiber identification method. The method mainly comprises the following steps of: acquiring the absorption spectrum of a standard textile fiber at a terahertz wave band by using a terahertz time domain spectroscopy measuring device; extracting the principal component of the absorption spectrum of the textile fiber by using a principal component analysis method; establishing a textile fiber classification model by using a mode recognition method; and acquiring the terahertz absorption spectrum of the textile fiber to be identified by the method, extracting the principle component of the terahertz absorption spectrum, performing classification by calling the established model and determining the type of the textile fiber to be identified. The identification method is a spectroscopy-based identification method, does not need a complex pre-processing process and has short test time. The method belongs to the field of nondestructive testing, does not damage a tested sample, has high identification accuracy and is suitable for identifying textile fibers with similar components.

The invention relates to the field of biological prevention and treatment of plant diseases, in particular to a bacillus siamensis strain and application thereof. The strain is preserved in CGMCC (China General Microbiological Culture Collection Center); the preservation code is CGMCC NO.12903; the preservation time is August 24, 2016. The strain is used for preventing and treating rhizoctonia solani kuhn; the potential adverse influence of chemical drug used in the current stage on the human environment and the rice safety can be avoided. The strain has the characteristics that the growth speed is high; the sporulation quantity is large; the action spectrum is wide; the stress resistance is great; the plant growth is promoted, and the like. Therefore the strain belongs to a biological prevention and treatment preparation with great application prospects.

The present invention provides an X-ray computer tomography photography system for improving safety of a patient by x-ray based overmuch irradiation without loss of picture quality. The computer tomography photography system is configured to modulate voltage for collecting at least two kinds of projection data corresponding to at least two energy action spectrums, and at least one of two tube voltages is modulated according to attenuation of x-ray in an object to be detected so as to optimize radiation dose efficiency.

The invention belongs to the technical field of spectra, and relates to a Chinese medicine sample authenticity preliminary screening method based on a terahertz time-domain spectrum. The Chinese medicine sample authenticity preliminary screening method based on the terahertz time-domain spectrum includes the steps: (1) collecting a Chinese medicine vacuum sample and terahertz time-domain spectrum data referring to air; (2) calculating an absorption coefficient of the vacuum sample in a terahertz wave band to be used as a standard to be stored in a Chinese medicine terahertz spectrogram data bank; (3) calculating the terahertz time-domain spectrum of a to-be-tested Chinese medicine sample which is unknown in authenticity; (4) utilizing a data treating method of hierarchical cluster analysis, enabling the to-be-tested Chinese medicine sample which is unknown in authenticity and genuine article absorption data which exists in a Chinese medicine terahertz spectrogram data bank to be calculated in a clustering mode so as to conduct preliminary judgment to the authenticity of the Chinese medicine sample. The Chinese medicine sample authenticity preliminary screening method based on the terahertz time-domain spectrum can achieve the effect that preliminary authenticity identifying to the Chinese medicine sample is quick, convenient, and effective.

The invention discloses a mine MWD (Measurement While Drilling) exploration system and a measurement method thereof. The mine MWD exploration system comprises a measurement module, a communication device and a handheld terminal, wherein the measurement module is mounted at the back of a drill bit, is propelled by a drill rod, directly utilizes vibration generated when the drill bit breaks rocks as a vibration source, and comprises a measurement probe tube as well as non-magnetic rods mounted at the front end and the back end of the measurement probe tube; the measurement probe tube is used for collecting signals in a hole, and meanwhile plays the transmission and water flowing functions; the non-magnetic rods are used for isolating the magnetic interference generated by the drill rod to the measurement probe tube, and also have the transmission and water flowing functions; the communication device is mounted in a drill site outside the hole to realize communication between the measurement probe tube and the handheld terminal. According to the mine MWD exploration system and the measurement method thereof, the occurrence of the drill hole and a rock dynamic action spectrum of the drill bit can be measured while drilling, a drilling space trajectory and the drilling meeting rock property are provided, meanwhile the purpose of exploration while drilling can be realized, and the fact that various conditions can be measured in one hole can be realized.

The invention discloses bacillus subtilis, a biological prevention and control preparation thereof and an application of the biological prevention and control preparation, and belongs to the field of biological plant disease and pest prevention and control. The stain is bacillus subtilis XLBS-01, and has the preservation number of CGMCC No. 6692. Tests show that the bacillus subtilis disclosed by the invention has the characteristics of high growing speed, large sporulation quantity, wide action spectrum, strong stress resistance, capability of realizing rapid and large-quantity colonization at plant roots, and the like, and therefore, the bacillus subtilis has good application prospects. The biological prevention and control preparation prepared from the bacillus subtilis can not only effectively prevent and control plant soil-borne diseases, but also can effectively increase the crop output, thereby being a biological prevention and control preparation with vast application prospects. The microbial preparation can be used as a biopesticide or a biofertilizer for preventing and controlling various soil-borne plant diseases and also preventing and controlling plant leaf diseases, such as hot pepper anthracnose, cucumber target spot, grape downy mildew, rose powdery mildew and the like.

The invention discloses a vector spectrum based dynamic balance method for flexible rotors. Imbalance failure of the rotors on site can be truly and objectively found by a vector spectrum analysis software, the power-frequency principal vibration vector of the rotors on vibration measuring sections can be extracted by vector spectrum filtering method by measuring the original vibration signals of two mutually perpendicular channels on the vibration measuring sections; the principal vibration vector is used as the substitute of the amplitude and the phase of the power frequency of the rotors extracted in traditional single-channel signals; on-site dynamic balance is conducted by combing with influence coefficient method, and the balance process is less dependent on the experience and knowledge of operators, can greatly improve the efficiency and accuracy of the flexible rotor dynamic balance and is a highly integrated computer-assisted on-site dynamic balance method.

The invention discloses streptomyces albidoflavus strain and an application thereof to control cucumber downy mildew, and belongs to the field of biological control on plant diseases. The bacterial strain is streptomyces albidoflavus ACT033, and the preservation number is CGMCC No. 8125. The invention also discloses a biological control preparation which is prepared by employing the new streptomyces albidoflavus strain ACT033 and is capable of effectively controlling cucumber downy mildew and a preparation method of the preparation. Experiments show that the streptomyces albidoflavus strain ACT033 of the invention has the characteristics of fast growth speed, large sporulation quantity, broad-spectrum effect, strong stress resistance and the like, and can be fast colonized in quantity at the plant roots, so good application prospect is achieved. The biological control preparation prepared from the streptomyces albidoflavus strain ACT033 not only can control cucumber downy mildew, but also can effectively increase crop output.

An optical recording medium having a recording layer which contains at least one compound selected from the group consisting of mono-, di-, and triazaporphyrin compounds optionally in the form of a metal complex; or an optical recording medium comprising a substrate and formed thereon at least a recording layer containing an organic dye as a main component, characterized in that the organic dye has a first maximum value of absorption at a wavelength λ1 of 400 nm or less in the absorption spectrum and has a second maximum value of absorption at a longer-wavelength side than the λ1, and a wavelength band wherein the refractive index (n) and the absorption coefficient (k) of the above organic dye satisfy n≧1.90 and 0.03≦k≦0.30.

A low power consumption multi-contact micro electro-mechanical strain/displacement sensor and miniature autonomous self-contained systems for recording of stress and usage history with direct output suitable for fatigue and load spectrum analysis are provided. In aerospace applications the system can assist in prediction of fatigue of a component subject to mechanical stresses as well as in harmonizing maintenance and overhauls intervals. In alternative applications, i.e. civil structures, general machinery, marine and submarine vessels, etc., the system can autonomously record strain history, strain spectrum or maximum values of the strain over a prolonged period of time using an internal power supply or a power supply combined with an energy harvesting device. The sensor is based on MEMS technology and incorporates a micro array of flexible micro or nano-size cantilevers. The system can have extremely low power consumption while maintaining precision and temperature/humidify independence.

The invention discloses a mechanical device programmed frequency amplitude modulation (PFAM) structural decomposition method. The method comprises the following steps: building a part spectrum, a working condition spectrum, a load spectrum, a function spectrum and a fault spectrum; determining sub-spectrum element functions, and establishing a functional matrix to achieve spectrum -function mapping; determining a corresponding relation between functions and actions to achieve the function-action mapping; and determining infinitesimal corresponding to the actions to achieve action-infinitesimal mapping. According to the method, engineering problems of complex structure, varying working conditions, varying loading, multiple failure modes of a complex mechanical device are solved to enhance quality control and the reliability, and loads and functional failure in operation of the device can be subject to dynamic analysis, and a theoretical basis for improving and enhancing major quality features such as accuracy, accuracy service life and reliability of the complex device is provided.

The invention discloses a copper complex of phenanthroline derivatives and a preparation method and application thereof, wherein the copper complex consists of 1,10-phenanthroline or single-substituted or multi-substituted derivatives thereof, acid radicals and copper ions, and can also contain organic micromolecules. The preparation method of the complex disclosed by the invention comprises the step of: reacting 1,10-phenanthroline or single-substituted or multi-substituted derivatives with a copper salt in a solvent under stirring to obtain the complex. The complex of the invention has high raw material availability and low cost, the product is separated out in the form of crystals and has high purity and high yield; besides, the complex can be stably present under a natural state, and has favorable water solubility and fat solubility; in addition, the complex of the invention exhibits superior inhibiting action on a plurality of cancer cells, such as lung cancer, gastric cancer, liver cancer, colonic adenoma, leukemia, nasopharyngeal carcinoma and the like, so both action spectrum and applicable scope of the complex are wide.

The invention relates to an illuminating device (10) for illuminating an object, with a lighting element (20) and an inspection element (30), wherein the lighting element (20) comprises at least one first light emitting mean (21), wherein the first light emitting mean (21) is emitting light with a first spectrum (22), wherein the inspection element (30) comprises at least one second light emitting mean (31), wherein the second light emitting mean (31) is emitting light with a second spectrum (32), wherein the second spectrum (32) is essentially separated from the first spectrum (22), with an illuminating mode, operating only the lighting element (20), with an inspection mode, operating the lighting element (20) and the inspection element, and the superposition of the light of the first (21) and the second light emitting mean (31) yields a result light.

The invention discloses a strain of bacillus simplex and application thereof. The bacterial strain is bacillus simplex STY005, and the preservation number is CGMCC No.11052. The invention also discloses a biological control preparation containing the bacterial strain and a preparation method thereof. Experiment results show that the bacillus simplex strain STY005 provided by the invention has the characteristics of being long in diameter, hypoxia resistant, wide in action spectrum, high in adaptability, capable of quickly growing and breeding under low nutrition, and the like, thereby having a good application prospect; the biological control preparation prepared from the bacterial strain can not only effectively prevent and treat plant diseases, but also effectively increase crop yield, is a biological control preparation with a wide application prospect, and can be used as a biopesticide or a bio-fertilizer for preventing and treating crop leaf diseases containing one or more of the diseases like potato common scab, grape downy mildew, Chinese rose powdery mildew, and cucumber target leaf spot.

A device for recording an absorption spectrum of a fluid has a radiation source (1) that emits a radiation in a spectral range along a beam path (11), a measuring path (5), along which the radiation passes through the fluid and arranged in the beam path, a tunable Fabry-Perot interferometer (7), arranged in the beam path and transmitting radiation in the spectral range as a displaceable bandpass filter, and a detector (9, 35) measuring the intensity of the radiation in the spectral range. An etalon (3) is arranged for spectral modulation of radiation in the beam path and has a plurality of transmission maxima (17) in the spectral range. The bandpass filter, formed by the Fabry-Perot interferometer (7), is displacable across the spectral range such that spectral modulation of the radiation by the etalon (3) is measured by the detector (9, 35) as a modulation of radiation intensity over time.

The invention discloses a flow cell, which is a five-way body consisting of a light source spectrum fiber interface hole, an ultraviolet-visible light fiber interface hole, a fluorescence spectrum fiber interface hole, a liquid inlet pipe hole and a liquid outlet pipe hole, wherein the diameter of a linear passage pipe between the ultraviolet-visible light fiber interface hole and the light source spectrum fiber interface hole is 0.5 to 0.7 millimeter; the liquid inlet pipe hole and the liquid outlet pipe hole are distributed in parallel, and the central distance of the two holes is 1 centimeter; the fluorescence spectrum fiber interface hole and the light source spectrum fiber interface hole are distributed in a vertical right angle; the inside diameters of the holes are thickened, and matched inner threads are machined in the holes; and a fiber or a pipeline is connected and fixed to the cell via a joint and a buckling sleeve. The flow cell can be widely applied to the field of a flow cell device applicable in the ultraviolet-visible light absorption and fluorescence detection on a flow injection analysis instrument.

The invention provides a field optical measuring device and method for multiple organic contaminations in sea water, which is mainly made up of pulse xenon lamp, diffraction grating sample pool, absorbed light detector, fluorescence detector, filter, sampling inlet pump, control system. The kinds of material can be confirmed according to the spectrum information recorded by fluorescence state generated by the special wavelength laser, and the content can be measured according to the absorption spectrum of the special wavelength. The continuous measurement of chlorophyll-a, phenol, yellow material and oil can be realized with only one device, the detection analyzing program can be simplified; the operation and control are convenient, and it has no contamination to environment.