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SPECTROMETER: 作品数：383被引量：508H指数：10; 导出分析报告; 相关领域：理学更多>>; 相关作者：刘安雯胡水明李雪松冷春波张韫宏更多>>; 相关机构：中国科学院清华大学中国科学院大学中国科学技术大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划国家高技术研究发展计划中国博士后科学基金更多>>

Effects of spectral sampling rate and range of CO_2 absorption bands on XCO_2 retrieval from TanSat hyperspectral spectrometer被引量：5: 《Chinese Science Bulletin》2014年第14期1485-1491,共7页Yi Liu Zhaonan Cai Dongxu Yang Yuquan Zheng Minzheng Duan Daren L; supported by the Strategic Priority Research Program-Climate Change: Carbon Budget and Relevant Issues (XDA05040200);the National High-tech R&D Program of China (2011AA12A104);the National Natural Science Foundation of China (41205018); The spectral sampling rate and range of CO2absorption bands are critical for the optimal design of hyperspectral instrument for CO2observation satellite.Undersampling of spectra in space-based spectrometer significant...; 关键词：采样速率高光谱 CO2 光谱仪吸收带检索地表反照率光谱分辨率

High-energy resolution μ-XRF analysis by position sensitive spectrometer: 《Chinese Science Bulletin》2000年第21期1934-1938,共5页Zhaohui Hu Shijie Liu Pingsheng Liu Guohua Feng Yong Han; With a high-energy resolution micro-X-ray fluorescence (μ-XRF) analysis setup, which basically consists of an X-ray microbeam formed by an X-ray focusing lens combined with an X-ray apparatus and a wavelength dispers...; 关键词：position sensitive SPECTROMETER (PSS) HIGH-ENERGY resolution X-ray FOCUSING LENS μ-XRF.

Dynamic observation of ore-forming solutions by in-situ FT-IR spectroscopy and UV spectroscopy connected with high temperature and high pressure cell被引量：1: 《Chinese Science Bulletin》1999年第S2期1-3,共3页Stepantchikova S.A. Kolonin G.K; T_HE structure of aqueous and metal bearing solution, if observed dynamically by in situ spectrometer atelevated temperatures and pressures, will show new information on the kinetic mechanism of ore-formingf...; 关键词：DYNAMIC OBSERVATION in SITU SPECTROMETER high temperature ore-fluids.

A NEW METHOD FOR ABSOLUTE DETERMINATION OF TRACE ELEMENT BORON: 《Chinese Science Bulletin》1992年第9期750-754,共5页黄庆文林英钊; Ⅰ. INTRODUCTION Being a trace element, boron is very important for the growth of crops, especially for rape, cotton, beet, fruit trees and peanut, and there are many reports about it at home and abroad. The instrumen...; 关键词：ion mass SPECTROMETER trace element BORON stable ISOTOPE TRACING

IMPROVEMENT OF THE POSITRON LIFETIME SPECTROMETER WORKING IN A MAGNETIC FIELD: 《Chinese Science Bulletin》1992年第3期194-197,共4页王海东张天保王淑英杨广明; Project supported by the National Natural Science Foundation of China.; Ⅰ. INTRODUCTION In the past experiments on the magnetic quenching of positronium atom （a hydrogenlike bound state of positron and dectron ）, the plastic scintillator and BaF₂ crystal were usually used as...; 关键词：POSITRONIUM MAGNETIC QUENCHING LIFETIME spectrometer.

DETERMINATION OF ^(15)N ABUNDANCE IN AMMONIUM BY USING A NEW KIND OF MASS SPECTROMETRIC IONIZATION METHOD: 《Chinese Science Bulletin》1990年第10期825-829,共5页黄庆文张旭荣维民; Ⅰ. INTRODUCTIONThe stable isotope label method has an important application in the fields of agriculture, biology, medical science or the like. The various label substances made by ¹⁵N stable isotope can s...; 关键词：ion MASS SPECTROMETER ¹⁵N ABUNDANCE direct analysis.

STUDY ON TEMPERING EFFECT OF SmCo_5 PERMANENT MAGNETS AT 710℃ BY POSITRON ANNIHILATION TECHNIQUE: 《Chinese Science Bulletin》1988年第7期565-567,共3页何永枢季国坤石岩金汉民; It is well known that an SmCo5 magnet quenched at about 900℃ has high coercivity iHc. But annealing at about 700℃ causes a rapid decrease of iHc. It has been considered that the drop of iHc is caused by the precipit...; 关键词：COERCIVITY annealing MAGNET quenched reversed attributed DENSE SPECTROMETER annealed spark

INVESTIGATION ON THE NATURAL BACKGROUND VALUES AND STATES OF ELEMENTS IN NATURAL WATER FROM THE UPPER REACHES OF THE NENJIANG RIVER被引量：1: 《Chinese Science Bulletin》1987年第14期983-987,共5页钱杏珍李岫霞; The Nenjiang River, being a main tributary, is located in the upper reaches of the Songhua River. It is an important surface water resource for Heilongjiang Province. Investigation on natural background values and sta...; 关键词：reaches suspended Heilongjiang ALKALINE REMOVE adsorbed SUSPENSION RIVER concentrated SPECTROMETER

STUDY ON THE COMPLEX SITE OF TRANSITION METAL IONS WITH ANTIBIOTICS: 《Chinese Science Bulletin》1986年第13期899-904,共6页陈亮胡玉仙文莉; The nuclear magnetic resonance relaxtion phenomenon is associated with molecular motion. In recent years, Same authors have studied the states of molecular motion and the activation energies and then proceeded to stud...; 关键词：relaxation SPECTROMETER TRYPSIN PROTON adding struct EPSTEIN orbit TABLES 口寸

INITIAL EXPERIMENT OF WHITFLIGHT SOLAR LONGITUDINAL MAGNETOMETER: 《Chinese Science Bulletin》1985年第11期1560-,共1页胡岳凤艾国祥季威韩峰明长荣张洪起刘建中李京王瑞兰艾贻民; According to the measuring results with the Kitt Peak Fourier spectrometer, a net circular polarization causing Stocks Ⅴ asymmetry in each spectral lines was discovered in a broad-band spectrum region, i.e. the white...; 关键词：SPECTROMETER SOLAR MAGNETOMETER asymmetry NARROW circular SOLAR CAUSING OBSERVATIONAL deter

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