介绍了用于冶金原辅材料分析的通用软件“宽范围氧化物精确测定定量分析程序”(WRO)和专用于各类合金准确定量分析的 Ni Fe Co通用软件 ;适用于取制样条件较差 ,难以获得大块样品的生产现场的“钢削XRF直接测定”的定量分析方法。针对...介绍了用于冶金原辅材料分析的通用软件“宽范围氧化物精确测定定量分析程序”(WRO)和专用于各类合金准确定量分析的 Ni Fe Co通用软件 ;适用于取制样条件较差 ,难以获得大块样品的生产现场的“钢削XRF直接测定”的定量分析方法。针对新材料解剖和现场条件较差 ,难获得大量标样的情况 ,还介绍了“Sem IQ”和“IQ+”展开更多
The Tibetan Plateau is characterized by lower atmospheric pressure, lower air temperature and high daily and seasonal variation due to high elevation. The photosynthesis of aaplants is significantly influenced by thes...The Tibetan Plateau is characterized by lower atmospheric pressure, lower air temperature and high daily and seasonal variation due to high elevation. The photosynthesis of aaplants is significantly influenced by these alpine environmental factors. Apparent quantum yield (αA) is one of the basic parameters of photosynthesis and mass production. Its accuracy determination is of significance to model photosynthesis of C3 plants and global change on the plateau. In the Lhasa Plateau Ecological Station with 65.4 kPa of atmospheric pressure at an elevation of 3688 m, Li-Cor 6400 portable photosynthesis system was used to measure light response curves of winter wheat in different temperatures and intercellular CO2 concentration (C,). The slope of light response curve in weak light area of PFD from 0 to 150 μmol m-2 s-1 was used to evaluate the value of αA. The dependence of αA on temperature and intercellular concentration was analyzed. In 30℃, the average value of αA was 0.0476±0.0038. It is not quite different from the values in low elevation areas. αA is influenced both by temperature and by the ratio of CO2 and O2 partial pressure ([CO2]/[O2]). The measured values in the previous study were much lower. This might be due to systematic errors from instrument and data processing methods. The values of αA decreased linearly with temperature. It decreased 0.0007 in every 1℃ increase of temperature. The decrease slope is similar to those of C3 plants in the previous researches. While [O2] is constant,αA increases with Ciwith a hyperbolic relationship. In comparison with low elevation areas, the αA on the Tibetan Plateau is more sensitive to increase of CO2.展开更多
The Duobaoshan mine area in Heilongjiang is located in the northeast section of Xingmeng orogenic belt and is in the west side of Hegang Mountain-Heihe fault zone. There exist many deposits in this area,and its metall...The Duobaoshan mine area in Heilongjiang is located in the northeast section of Xingmeng orogenic belt and is in the west side of Hegang Mountain-Heihe fault zone. There exist many deposits in this area,and its metallogenic conditions are superior,which has been one of the hotspots in geological prospecting and metallogenic research in Northeast China. On the basis of previous studies,the authors used the EH-4 electromagnetic imaging system to carry out the data acquisition of three survey lines in Woduhe Village,Duobaoshan Town,Nenjiang County. Through the analysis of apparent resistivity section under TE and TM polarization modes,integrating regional geological data,it is concluded that:(1) the electrical characteristics of the metal ore in this area show a relatively low resistance,and according to its resistivity difference with surrounding rocks,the geometrical structures and apparent resistivity parameters of the low resistivity bodies in the lower section of the survey line are defined,and the electrical anomalies can be identified;(2)faults F1 and F2 may have a good metallogenic environment,so they are recommended for further exploration;(3) low resistance metal ore bodies have good correlation with local small structures or faults,which may play an iconic role for the delineation of key target areas;(4) in the process of using apparent resistivity to define the geometric structures of ore bodies underground,comprehensive analysis integrating the advantages of TE and TM models should be carry out to achieve more reliable inversion results.展开更多
文摘介绍了用于冶金原辅材料分析的通用软件“宽范围氧化物精确测定定量分析程序”(WRO)和专用于各类合金准确定量分析的 Ni Fe Co通用软件 ;适用于取制样条件较差 ,难以获得大块样品的生产现场的“钢削XRF直接测定”的定量分析方法。针对新材料解剖和现场条件较差 ,难获得大量标样的情况 ,还介绍了“Sem IQ”和“IQ+”
基金This work was supported by the National Key Basic Research and Development Project(Grant No.2002CB41250l)the National Natural Science Foundation of China(Grant Nos.90211006,30370257 and 30470280)the Knowledge Innovation Project of Institute of Geographical Sciences and Natural Resources Research,CAS(Grant No.CXIOG-E01-03-03).
文摘The Tibetan Plateau is characterized by lower atmospheric pressure, lower air temperature and high daily and seasonal variation due to high elevation. The photosynthesis of aaplants is significantly influenced by these alpine environmental factors. Apparent quantum yield (αA) is one of the basic parameters of photosynthesis and mass production. Its accuracy determination is of significance to model photosynthesis of C3 plants and global change on the plateau. In the Lhasa Plateau Ecological Station with 65.4 kPa of atmospheric pressure at an elevation of 3688 m, Li-Cor 6400 portable photosynthesis system was used to measure light response curves of winter wheat in different temperatures and intercellular CO2 concentration (C,). The slope of light response curve in weak light area of PFD from 0 to 150 μmol m-2 s-1 was used to evaluate the value of αA. The dependence of αA on temperature and intercellular concentration was analyzed. In 30℃, the average value of αA was 0.0476±0.0038. It is not quite different from the values in low elevation areas. αA is influenced both by temperature and by the ratio of CO2 and O2 partial pressure ([CO2]/[O2]). The measured values in the previous study were much lower. This might be due to systematic errors from instrument and data processing methods. The values of αA decreased linearly with temperature. It decreased 0.0007 in every 1℃ increase of temperature. The decrease slope is similar to those of C3 plants in the previous researches. While [O2] is constant,αA increases with Ciwith a hyperbolic relationship. In comparison with low elevation areas, the αA on the Tibetan Plateau is more sensitive to increase of CO2.
基金Supported by National Key Basic Research Program of China(973 Program)(No.3B813C254423)
文摘The Duobaoshan mine area in Heilongjiang is located in the northeast section of Xingmeng orogenic belt and is in the west side of Hegang Mountain-Heihe fault zone. There exist many deposits in this area,and its metallogenic conditions are superior,which has been one of the hotspots in geological prospecting and metallogenic research in Northeast China. On the basis of previous studies,the authors used the EH-4 electromagnetic imaging system to carry out the data acquisition of three survey lines in Woduhe Village,Duobaoshan Town,Nenjiang County. Through the analysis of apparent resistivity section under TE and TM polarization modes,integrating regional geological data,it is concluded that:(1) the electrical characteristics of the metal ore in this area show a relatively low resistance,and according to its resistivity difference with surrounding rocks,the geometrical structures and apparent resistivity parameters of the low resistivity bodies in the lower section of the survey line are defined,and the electrical anomalies can be identified;(2)faults F1 and F2 may have a good metallogenic environment,so they are recommended for further exploration;(3) low resistance metal ore bodies have good correlation with local small structures or faults,which may play an iconic role for the delineation of key target areas;(4) in the process of using apparent resistivity to define the geometric structures of ore bodies underground,comprehensive analysis integrating the advantages of TE and TM models should be carry out to achieve more reliable inversion results.
