Journals >Journal of Infrared and Millimeter Waves
Contents
2003
Volume: 22 Issue 3
16 Article(s)
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Research Article
TWO-DIMENSIONALINFRARED CORRELATION SPECTROSCOPY STUDIES OF PROTEINS IN AQUEOUS SOLUTIONS
[in Chinese], and [in Chinese]
This review paper aimsat outlining the principle of two-dimensional (2D) IR spectroscopy and its applications tothe subtle structural changes of proteins in aqueous solutions. Our studies have dualpurposes. One is to show that 2D ATR/IR spectroscopy can be utilized to explore theeffects of adsorption of proteins on an This review paper aimsat outlining the principle of two-dimensional (2D) IR spectroscopy and its applications tothe subtle structural changes of proteins in aqueous solutions. Our studies have dualpurposes. One is to show that 2D ATR/IR spectroscopy can be utilized to explore theeffects of adsorption of proteins on an ATR cell. Another purpose is to provide newinsight into temperature and acid induced protein structure and denaturation by using 2DIR spectroscopy..
Journal of Infrared and Millimeter Waves
- Publication Date: Jan. 01, 1900
- Vol. 22, Issue 3, 161 (2003)
DEVELOPMENT OF A HIGHACCURACY SUN SENSOR FOR THE GEO-STATIONARY METEOROLOGY SATELLITE
[in Chinese], and [in Chinese]
Basing upon therequirements of the scanning synchronization controller system of the geo-stationarymeteorology satellite (GSMS) and the characteristics of the solar target, a prototype ofon-board high accuracy sun sensor (HASS) and a set of testing equipment of this HASS hasbeen developed. The designed sun sensor, whicBasing upon therequirements of the scanning synchronization controller system of the geo-stationarymeteorology satellite (GSMS) and the characteristics of the solar target, a prototype ofon-board high accuracy sun sensor (HASS) and a set of testing equipment of this HASS hasbeen developed. The designed sun sensor, which is used on the GSMS both for the scanningsynchronization controller and for the alignment guiding of cloud pictures at earthstations, has two pairs of slits and uses an equivalent detection method to generate ahigh accuracy sun pulse. It has realized a measuring accuracy of 0.46 microseconds (r.m.s)when the satellite rotates at a rate of 100 r/min in the sector meridian plane of thesatellite ranging from -29.5° to +29.5°. In addition, the sensor has the characteristicsof high reliability, real-time and low power consumption..
Journal of Infrared and Millimeter Waves
- Publication Date: Jan. 01, 1900
- Vol. 22, Issue 3, 169 (2003)
PRELIMINARY EXPLORATION ON THE MECHANISM UNDERLYING THE FORMATION OF INFRARED RADIANT TRACK ALONG MERIDIAN COURSES OVER HUMAN BODY SURFACE
[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
The feature of skin microcirculation and a certain channel of thermal transfer in the deep tissue underneath the meridian course are the main factor for the formation of infrared radiant track along meridian course (IRRTM), while the latter what is more important. The channel of thermal transfer in question, which inclThe feature of skin microcirculation and a certain channel of thermal transfer in the deep tissue underneath the meridian course are the main factor for the formation of infrared radiant track along meridian course (IRRTM), while the latter what is more important. The channel of thermal transfer in question, which includes a definite depth, form deep to superficial, consists of a several known tissues and some unknown factors may also be involved. P O 2 and tissue temperature are higher, microcirculation abundant and energy metabolism are active to provide a favorable condition for realization of transformation and transmission for material, energy and signal, in this way, meridian is to be able to play an important role in regulation of functional activity of human body..
Journal of Infrared and Millimeter Waves
- Publication Date: Jun. 01, 2003
- Vol. 22, Issue 3, 175 (2003)
METHOD OF QUANTITATIVE REMOTE SENSING FOR AIR POLLUTION MONITORING AND ITS APPLICATION IN CHANGJIANG RIVER DELTA AREA
[in Chinese], [in Chinese], [in Chinese], and [in Chinese]
Optical characteristics of synthetic aerosol and the information composition of pixel in remotely sensed data are analyzed. The information of every pixel can be generalized as the sum of soil, vegetation, and water or moisture with nonlinear relationship. Then a group of equations based of multi channel remote sensingOptical characteristics of synthetic aerosol and the information composition of pixel in remotely sensed data are analyzed. The information of every pixel can be generalized as the sum of soil, vegetation, and water or moisture with nonlinear relationship. Then a group of equations based of multi channel remote sensing data can be built to decompose the pixel information and quantitatively retrieve the synthetic aerosol turbidity using Landsat TM data. The results of experiment show that the accuracy of air pollution information retrieved satisfies the requirement. Applying this model, air pollution circumstances over the Changjiang River Delta area in 1984 and in 1997 were detected, respectively. The results indicated that the area and the intensity of air pollution over this region are increasing quickly..
Journal of Infrared and Millimeter Waves
- Publication Date: Jun. 01, 2003
- Vol. 22, Issue 3, 181 (2003)
THE STUDY OF OFF-CENTER RECEPTIVE FIELDS AND THE APPLICATION FOR INFRARED IMAGE
[in Chinese], [in Chinese], and [in Chinese]
The receptive field (RF) theory and the lateral inhibition (LI) mechanism are of the same view.According to the eye′s microsaccade phenomena supported by the medicine field, the proposed opinion states that image spot of object will project the On center RF and off center RF alternatively in the split seconds, so a newThe receptive field (RF) theory and the lateral inhibition (LI) mechanism are of the same view.According to the eye′s microsaccade phenomena supported by the medicine field, the proposed opinion states that image spot of object will project the On center RF and off center RF alternatively in the split seconds, so a new vision mechanism′s assume based on this opinion is proposed; this paper discussed the property of Off center RF in detail, and put forward a mathematic model that has a advantage to carry out the edge detecting algorithm, especially to the military IR image, this algorithm posses the characteristics of speeding and feature magnify..
Journal of Infrared and Millimeter Waves
- Publication Date: Jun. 01, 2003
- Vol. 22, Issue 3, 186 (2003)
EFFECT OF LAND SURFACE NON-UNIFORMITY ON LAND SURFACE TEMPERATURE RETRIEVAL AND RETRIEVAL TESTS OF LAND SURFACE TEMPERATURE BY REAL SATELLITE MEASUREMENTS
[in Chinese], [in Chinese], and [in Chinese]
The effect of land surface non uniformity on land surface temperature retrieval was investigated. A non uniform land surface in retrieval could be considered and treated as an uniform land surface with an equivalent temperature. Furthermore, a set of real GMS 5/VISSR infrared channel data was used to determine land surThe effect of land surface non uniformity on land surface temperature retrieval was investigated. A non uniform land surface in retrieval could be considered and treated as an uniform land surface with an equivalent temperature. Furthermore, a set of real GMS 5/VISSR infrared channel data was used to determine land surface temperature with the retrieval algorithm..
Journal of Infrared and Millimeter Waves
- Publication Date: Jun. 01, 2003
- Vol. 22, Issue 3, 191 (2003)
AN IMPROVED IMAGE ENHANCEMENT ALGORITHM BY NON -LINEAR EXTRAPOLATION IN FREQUENCY SPACE AND THE APP -LICATION TO HIGH RESOLUTION IMAGE RECONSTRUCTION
[in Chinese], and [in Chinese]
An improved image enhancement algorithm by contour threshold nonlinear extrapolation in frequency space was proposed. Considering the fluctuation of the amplitude of the high frequency component, the new clip strategy improves the performance of image enhancement. The results of high resolution image reconstruction comAn improved image enhancement algorithm by contour threshold nonlinear extrapolation in frequency space was proposed. Considering the fluctuation of the amplitude of the high frequency component, the new clip strategy improves the performance of image enhancement. The results of high resolution image reconstruction combining this method show that the improved algorithm is suitable and powerful..
Journal of Infrared and Millimeter Waves
- Publication Date: Jun. 01, 2003
- Vol. 22, Issue 3, 197 (2003)
INVESTIGATIONS ON THE TRANSMISSION SPECTRA OF PbZr0.40Ti0.60O3 AMORPHOUS THIN FILMS
[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
Uniform and transparent PbZr 0.40 Ti 0.60 O 3 (PZT) amorphous thin films were deposited on the fused silica substrates using a modified sol gel processing. The optical properties of PZT amorphous thin films were investigated in the wavelength range of 200～1100nm. The refractive index, the extinction coefficient and theUniform and transparent PbZr 0.40 Ti 0.60 O 3 (PZT) amorphous thin films were deposited on the fused silica substrates using a modified sol gel processing. The optical properties of PZT amorphous thin films were investigated in the wavelength range of 200～1100nm. The refractive index, the extinction coefficient and the film thickness were calculated by a classical envelope method. The dispersion of the refractive index is well explained by the single term Sellmeier relation. The band gap of the PbZr 0.40 Ti 0.60 O 3 thin films is about 3.78eV using Tauc's theory..
Journal of Infrared and Millimeter Waves
- Publication Date: Jun. 01, 2003
- Vol. 22, Issue 3, 203 (2003)
EFFECT OF EXCHANGE-CORRELATION POTENTIAL ON LATTICE PARAMETER AND BAND STRUCTURE CALCULATION OF SnTe WITH FP-LMTO METHOD
[in Chinese], [in Chinese], and [in Chinese]
The total energy and the electronic band structure of SnTe were calculated with the FP LMTO method based on first principles. The lattice constant and band structure were deduced from the lowest energy point of total energy. The effects of different exchange correlation potentials on both total energy and electronic baThe total energy and the electronic band structure of SnTe were calculated with the FP LMTO method based on first principles. The lattice constant and band structure were deduced from the lowest energy point of total energy. The effects of different exchange correlation potentials on both total energy and electronic band structure are discussed..
Journal of Infrared and Millimeter Waves
- Publication Date: Jun. 01, 2003
- Vol. 22, Issue 3, 208 (2003)
EFFECT OF ANNEALING ON OPTICAL PROPERTY OF CNx FILM
[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
The effect of annealing on optical properties of the CN x films prepared by electron cyclotron resonance laser pulse assisted deposition was reported. X ray diffraction (XRD) shows that CN x film samples have basically amorphous structure and very little amount of poly crystalline structures. Raman Scattering spectra dThe effect of annealing on optical properties of the CN x films prepared by electron cyclotron resonance laser pulse assisted deposition was reported. X ray diffraction (XRD) shows that CN x film samples have basically amorphous structure and very little amount of poly crystalline structures. Raman Scattering spectra demonstrates that the bonds in CN x films prepared at room temperature (RT) are mainly CN bonds, but a few C-C and minim CN bonds. With the annealing temperature increasing,not only appears a new peak corresponding to disordered CN bond near 1357cm -1 in Raman Scattering spectra, but also the comparable accumulations between CN and C-N bonds roughly tend to decrease at first, then increase and then decrease again. It proves that partial hydrogen atoms in the samples are migrated or escaped from the samples. The optical constants of CN x film samples measured by scanning ellipsometry demonstrate that annealing has a pronounced effect on ε 1?ε 2?n?k and spectra shap.
Journal of Infrared and Millimeter Waves
- Publication Date: Jun. 01, 2003
- Vol. 22, Issue 3, 213 (2003)
A DYNAMIC METHOD USED TO RECOGNISE FLAME BURNING STATUS IN THE BOILER
[in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
A dynamic tracing flame center algorithm and an advanced two dimensional gray level histogram thresholding algorithm were adopted for the combustion contral. It solves the problem of real time inspecting the burning state and quality of boiler flame effectively. Comparing the simulative experimental results with artifiA dynamic tracing flame center algorithm and an advanced two dimensional gray level histogram thresholding algorithm were adopted for the combustion contral. It solves the problem of real time inspecting the burning state and quality of boiler flame effectively. Comparing the simulative experimental results with artificial judgement on one thousand representative images, the recognition efficiency of the method is more than 99.8 percent..
Journal of Infrared and Millimeter Waves
- Publication Date: Jun. 01, 2003
- Vol. 22, Issue 3, 217 (2003)
LOW LIGHT LEVEL IMAGE ENHANCEMENT BASED ON DUALISTIC SUB-IMAGE AND TWO DIMENSIONAL HISTOGRAM ANALYSIS
[in Chinese], [in Chinese], [in Chinese], and [in Chinese]
A novel image enhancement technique suitable for low light level image, dualistic sub image enhancement based on two dimensional histogram analysis and histogram equalization, is presented. Firstly, the low light level image is segmented to two sub images according to the correlation between the neighboring pixels, whiA novel image enhancement technique suitable for low light level image, dualistic sub image enhancement based on two dimensional histogram analysis and histogram equalization, is presented. Firstly, the low light level image is segmented to two sub images according to the correlation between the neighboring pixels, which is based on the two dimensional histogram analysis. Then each sub image is enhanced based on histogram equalization. Finally, the processed sub images are composed into one image. The result indicates that the algorithm can not only enhance image information effectively but also keep the fine part of original low light level image well. And this algorithm eliminates the drawback of traditional histogram that the fine part is not easy to control and protect. This is meaningful for low light level night vision technology..
Journal of Infrared and Millimeter Waves
- Publication Date: Jun. 01, 2003
- Vol. 22, Issue 3, 220 (2003)
3D OBJECT CONSTRUCTION FROM SLICE BASED ON GENERALIZED MORPHOLOGIC TRANSFORMATION
[in Chinese], and [in Chinese]
By decomposed polygons into convex subsets, and matched the convex subsets, new method of 3D objects construction from slice is proposed. The middle slices can be interpolated by generalized morphologic transformation. The morphology operators have special advantages if used to process two objects construction that havBy decomposed polygons into convex subsets, and matched the convex subsets, new method of 3D objects construction from slice is proposed. The middle slices can be interpolated by generalized morphologic transformation. The morphology operators have special advantages if used to process two objects construction that have different topologic structure (including holey object and fork object). Experiments show that this method has a smoothness boundary of construction, high precision, lower cost of calculation and no need user alternation. It is a practicably method for 3D object construction and it can be widely used in medicine engineering..
Journal of Infrared and Millimeter Waves
- Publication Date: Jun. 01, 2003
- Vol. 22, Issue 3, 225 (2003)
EFFECT OF STRUCTURE AND DEFECT ON TRANSMITTED CHARACTER OF 2D PHOTONIC CRYSTAL
[in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
The transmitted character of 2D photonic crystal was calculated by transfer matrix method(TMM), and the transmission behavior of the different polarized light was discussed. The result provides the basic relation of the structure and the first band gap of the photonic crystal, comparing effect of square lattice, centerThe transmitted character of 2D photonic crystal was calculated by transfer matrix method(TMM), and the transmission behavior of the different polarized light was discussed. The result provides the basic relation of the structure and the first band gap of the photonic crystal, comparing effect of square lattice, centered square lattice and centered square lattice with defect on the transmission characteristic..
Journal of Infrared and Millimeter Waves
- Publication Date: Jun. 01, 2003
- Vol. 22, Issue 3, 229 (2003)
INFRARED EMITTER LOCATION METHOD USING PSEUDO-RANGE MEASUREMENTS
[in Chinese], [in Chinese], and [in Chinese]
The concept of pseudo range measurement is introduced to transform the nonlinear problem of infrared passive location to a linear problem. A closed form solution to the optimal linear position estimate is presented. Simulated results shown that the accuracy of the proposed method is colse to the performance of the bestThe concept of pseudo range measurement is introduced to transform the nonlinear problem of infrared passive location to a linear problem. A closed form solution to the optimal linear position estimate is presented. Simulated results shown that the accuracy of the proposed method is colse to the performance of the best estimate. It is applicable to the cases when the extinction coefficients of multiple different wavelengths are undnown or can not be obtained for enough accuracy..
Journal of Infrared and Millimeter Waves
- Publication Date: Jun. 01, 2003
- Vol. 22, Issue 3, 234 (2003)
A PLANAR STRUCTURE V-BAND UP-CONVERTER
[in Chinese], [in Chinese], and [in Chinese]
A planar structure V band up converter has been presented. The converter utilizes the balanced structure, the main structure of the converter is planar. An E plane transition from waveguide to micro strip is also designed for the output of the RF signal. The paper presents the simulated and the measured result of the uA planar structure V band up converter has been presented. The converter utilizes the balanced structure, the main structure of the converter is planar. An E plane transition from waveguide to micro strip is also designed for the output of the RF signal. The paper presents the simulated and the measured result of the up converter as well as the E plane transition. Finally it presents the outline of the up converter..
Journal of Infrared and Millimeter Waves
- Publication Date: Jun. 01, 2003
- Vol. 22, Issue 3, 237 (2003)
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