Carbon monoxide （CO） intoxication is one of the most common types of poisoning in the modem world. To better tailor messages and communication needs to the public, a perception survey of CO and his risk was conducte...Carbon monoxide （CO） intoxication is one of the most common types of poisoning in the modem world. To better tailor messages and communication needs to the public, a perception survey of CO and his risk was conducted among the population of Rabat-Sale-Zemmour-Zaer. The authors included 400 people in this survey. The demographic characteristics of the respondents consisted of： 85.0% female, 92.9% adults, 29.7% had a high level of education, 49.6% unemployed, 89.5% were home owners and 53.9% lived in apartments. Water heaters were present in the homes of 91.0% of respondents and 6.5% of them used gas. Gas was used as fuel in 45.4% of cases. For water heaters, 20.8% had an exhaust duct, 9.9% were serviced regularly and 47.5% were installed in a well ventilated area. Regarding the media, television was the medium that allowed 73.4% of the CO to know, regardless of age, sex and level of education among the 94.3% of who ever heard of this deadly gas before the survey.展开更多
Since 1865, the scholars from different countries have been studying the Genoese Massari＇s ledger of 1340. The authors have used a fundamentally new approach when studying this famous register. The authors have also ...Since 1865, the scholars from different countries have been studying the Genoese Massari＇s ledger of 1340. The authors have used a fundamentally new approach when studying this famous register. The authors have also analyzed the full-scale financial processes （from registering the expenses of the commune to their coverage by revenue） instead of analyzing some separate transactions which could prove the presence of the double-entry when registering each economic fact. This becomes possible as a result of the reconstruction of medieval entries and registers in the form of a modem account and the construction of the computer model of the whole ledger of 1340. The model of the system is formed according to seven summits of the revenue of the commune, which are distributed upon many factors of registered expenses and united into 17 reporting points. The special attention is paid to the date of the transaction. The authors have found many answers to some questions which were mysteries before. The explanation is given to the sales of goods below the purchasing price and to the exchange of money with significant losses.展开更多
For a modem organization, KM （Knowledge Management） plays a critical role in terms of strategy development. Key determinants of KM lead to better understanding of various influences that enable and organisation to f...For a modem organization, KM （Knowledge Management） plays a critical role in terms of strategy development. Key determinants of KM lead to better understanding of various influences that enable and organisation to face competitors. For this reason, sharing and managing knowledge in an organization involves a series of activities that are related to the specific functional aspects of that organisation. In order to foster KM in an organisation, these functional aspects must be understood properly, and within the context of a given organisation, its geographical location and the cultural aspects of the given organisation. This was the premise on which this study was conducted with Indian organisations. A mixed method approach was used to understand the views of Indian region towards KM in this study, be selecting 400 participants in four major each cities. A second order regression model was built using Structural Equation Model to arrive at nine constructs that are relevant to KM in an organisation.展开更多
Pollution of environment, connected with intensive industry and, as a result, declination of health of nation is one of the biggest problems of modem age. The purpose of research was the studying of influence of hydra...Pollution of environment, connected with intensive industry and, as a result, declination of health of nation is one of the biggest problems of modem age. The purpose of research was the studying of influence of hydrazine derivatives on redistribution of plasma protein between blood and lymph and change of hemodynamic poisoned by 1, l-nitrozodimethylamine. parameter caused by this. There were some changes in organism展开更多
The 3D visualization model of slop with structural plane can displayed the characters of structural plane in slop directly, and illustrated the spatial combination. It is a modem and critical question in the field of ...The 3D visualization model of slop with structural plane can displayed the characters of structural plane in slop directly, and illustrated the spatial combination. It is a modem and critical question in the field of geotechnical engineering. Based on the peculiarity of the reconnaissance and the research of the visualization by formers, systemized the method fit for building 3D visualization model of slop with structural plane. Write the special program with Visual C^-＋ computer language and illustrated it by OpenGL, the program can displayed and captured the random section plane. The program has a satisfied result by proving with the real projects.展开更多
How to have a more long-term vitality in the fierce competition in the industry and complex market environment, to have the more powerful anti-risk capability and competitive advantage is a modem airport managers have...How to have a more long-term vitality in the fierce competition in the industry and complex market environment, to have the more powerful anti-risk capability and competitive advantage is a modem airport managers have an urgent need to solve the problem. Because the nature of this paper will be ＂core competence＂ deemed to maintain long-term vitality and airport businesses a competitive advantage in the fierce competition in the industry. It can interpret and summarize the definition of core competence connotation airport, specificity and identification method to construct a two-dimensional Airport Enterprise core competence evaluation system and core competencies of three large enterprises of China＇ s civil aviation airport with the area to evaluate the scientific and operational test evaluation model.展开更多
Pressure fluctuation at the vaneless space and vanes passages is one of the most important problems for the stable operation of a pump turbine. The fluctuation appears in any operating condition. Much research has bee...Pressure fluctuation at the vaneless space and vanes passages is one of the most important problems for the stable operation of a pump turbine. The fluctuation appears in any operating condition. Much research has been done on the pressure fluctuation of hydraulic machinery. However, the details of pressure fluctuation propagation of the pump turbine at the pump mode have not been revealed. The modem pump turbine with high water head requires the runner to be ＂flat＂, which would induce pressure fluctuation more easily than the low head pump turbine. In this article, a high head pump turbine model is used as the re- search object. As the pressure fluctuation at off-design point is more serious than at the design point, the low head condition is chosen as the research condition. Pressure fluctuation at the vaneless space and vanes passages is predicted by the computa- tional fluid dynamics method based on k-co shear stress transport model. The experiment conducted on the test rig of the Har- bin Institute of Large Electrical Machinery is used to verify the simulation method. It proves that the numerical method is a feasible way to research the fluctuation under this operating condition. The pressure fluctuation along the passage direction is analyzed at time and frequency domains. It is affected mainly by the interaction between the runner and vanes. In the circumferential direction, the influence of the special stay vane on the pressure fluctuation is got. The amplitude in the high-pressure side passage of that vane is lower than that in the other side. The study provides a basic understanding of the pressure fluctua- tion of a pump turbine and could be used as a reference to improve the operation stability of it.展开更多
Phytolith study is a new branch of micropaleontology with an increasingly important role in geology, archaeology, and plant taxonomy. Phytoliths have several advantages considering their characteristics of small parti...Phytolith study is a new branch of micropaleontology with an increasingly important role in geology, archaeology, and plant taxonomy. Phytoliths have several advantages considering their characteristics of small particle size, high production, wide distribution, anti-decomposition, in situ deposition, distinctive morphologies, and element sequestrating capacity. Phytolith assemblages in modem soil have been found to be closely related to modem vegetation types and climate conditions, which forms the basis for the quantitative study of paleoecology, paleoclimate, and bio-geochemical cycles. At present, phytolith studies generally focus on the following four aspects： （1） Morphology： about 260 unduplicated types of phytoliths have been identified in modem soil, of which 110 types are from grasses, 50 types from ferns, woody plants and other angiosperms, whereas the origin plants of the remaining 100 types are still under investigation. （2） Soil phytolith assemblages and vegetation： phytolith assemblages from the topsoil have been used to distinguish surface vegetation types including different forests and grasslands over a typical region. This model has been applied to restore past vegetation conditions and monitor the dynamic evolution of specific vegetation types at different temporal and spatial scales. （3） Soil phytolith assemblages and climate： quantitative and semi-quantitative relationships between phytolith assemblages and a series of climate parameters, such as annual mean temperature, annual mean precipitation and altitude, have been established through mathematical analysis. In this manner, quantitative reconstruction of paleoclimatic parameters has been achieved through the phytolith-climate transfer function model. （4） Soil phytolith and its sequestered elements： in this topic, the content of soil PhytOC （Phytolith-occluded Organic Carbon） and the importance of PhytOC in the bio-geochemical cycle have been the focus. The study of modem soil phytoliths has provided new approaches and many successful cases for solving specific problems in various fields, such as Earth science and archaeology. This study analyzed existing issues in addition to the abovementioned significant progresses, and provides directions for future research on modem soil phytoliths.展开更多
文摘Carbon monoxide （CO） intoxication is one of the most common types of poisoning in the modem world. To better tailor messages and communication needs to the public, a perception survey of CO and his risk was conducted among the population of Rabat-Sale-Zemmour-Zaer. The authors included 400 people in this survey. The demographic characteristics of the respondents consisted of： 85.0% female, 92.9% adults, 29.7% had a high level of education, 49.6% unemployed, 89.5% were home owners and 53.9% lived in apartments. Water heaters were present in the homes of 91.0% of respondents and 6.5% of them used gas. Gas was used as fuel in 45.4% of cases. For water heaters, 20.8% had an exhaust duct, 9.9% were serviced regularly and 47.5% were installed in a well ventilated area. Regarding the media, television was the medium that allowed 73.4% of the CO to know, regardless of age, sex and level of education among the 94.3% of who ever heard of this deadly gas before the survey.
文摘Since 1865, the scholars from different countries have been studying the Genoese Massari＇s ledger of 1340. The authors have used a fundamentally new approach when studying this famous register. The authors have also analyzed the full-scale financial processes （from registering the expenses of the commune to their coverage by revenue） instead of analyzing some separate transactions which could prove the presence of the double-entry when registering each economic fact. This becomes possible as a result of the reconstruction of medieval entries and registers in the form of a modem account and the construction of the computer model of the whole ledger of 1340. The model of the system is formed according to seven summits of the revenue of the commune, which are distributed upon many factors of registered expenses and united into 17 reporting points. The special attention is paid to the date of the transaction. The authors have found many answers to some questions which were mysteries before. The explanation is given to the sales of goods below the purchasing price and to the exchange of money with significant losses.
文摘For a modem organization, KM （Knowledge Management） plays a critical role in terms of strategy development. Key determinants of KM lead to better understanding of various influences that enable and organisation to face competitors. For this reason, sharing and managing knowledge in an organization involves a series of activities that are related to the specific functional aspects of that organisation. In order to foster KM in an organisation, these functional aspects must be understood properly, and within the context of a given organisation, its geographical location and the cultural aspects of the given organisation. This was the premise on which this study was conducted with Indian organisations. A mixed method approach was used to understand the views of Indian region towards KM in this study, be selecting 400 participants in four major each cities. A second order regression model was built using Structural Equation Model to arrive at nine constructs that are relevant to KM in an organisation.
文摘Pollution of environment, connected with intensive industry and, as a result, declination of health of nation is one of the biggest problems of modem age. The purpose of research was the studying of influence of hydrazine derivatives on redistribution of plasma protein between blood and lymph and change of hemodynamic poisoned by 1, l-nitrozodimethylamine. parameter caused by this. There were some changes in organism
文摘The 3D visualization model of slop with structural plane can displayed the characters of structural plane in slop directly, and illustrated the spatial combination. It is a modem and critical question in the field of geotechnical engineering. Based on the peculiarity of the reconnaissance and the research of the visualization by formers, systemized the method fit for building 3D visualization model of slop with structural plane. Write the special program with Visual C^-＋ computer language and illustrated it by OpenGL, the program can displayed and captured the random section plane. The program has a satisfied result by proving with the real projects.
文摘How to have a more long-term vitality in the fierce competition in the industry and complex market environment, to have the more powerful anti-risk capability and competitive advantage is a modem airport managers have an urgent need to solve the problem. Because the nature of this paper will be ＂core competence＂ deemed to maintain long-term vitality and airport businesses a competitive advantage in the fierce competition in the industry. It can interpret and summarize the definition of core competence connotation airport, specificity and identification method to construct a two-dimensional Airport Enterprise core competence evaluation system and core competencies of three large enterprises of China＇ s civil aviation airport with the area to evaluate the scientific and operational test evaluation model.
基金supported by the National Natural Science Foundation of China(Grant No.51176168)the National Key Technology Research and Development Program(Grant No.2011BAF03B01)
文摘Pressure fluctuation at the vaneless space and vanes passages is one of the most important problems for the stable operation of a pump turbine. The fluctuation appears in any operating condition. Much research has been done on the pressure fluctuation of hydraulic machinery. However, the details of pressure fluctuation propagation of the pump turbine at the pump mode have not been revealed. The modem pump turbine with high water head requires the runner to be ＂flat＂, which would induce pressure fluctuation more easily than the low head pump turbine. In this article, a high head pump turbine model is used as the re- search object. As the pressure fluctuation at off-design point is more serious than at the design point, the low head condition is chosen as the research condition. Pressure fluctuation at the vaneless space and vanes passages is predicted by the computa- tional fluid dynamics method based on k-co shear stress transport model. The experiment conducted on the test rig of the Har- bin Institute of Large Electrical Machinery is used to verify the simulation method. It proves that the numerical method is a feasible way to research the fluctuation under this operating condition. The pressure fluctuation along the passage direction is analyzed at time and frequency domains. It is affected mainly by the interaction between the runner and vanes. In the circumferential direction, the influence of the special stay vane on the pressure fluctuation is got. The amplitude in the high-pressure side passage of that vane is lower than that in the other side. The study provides a basic understanding of the pressure fluctua- tion of a pump turbine and could be used as a reference to improve the operation stability of it.
基金supported by the “Macroevolutionary Processes and Paleoenvironments of Major Historical Biota” of the Chinese Academy of Sciences (Grant No. XDPB0503)the National Natural Science Foundation of China (Grant Nos. 41430103 & 41230104)the National Basic Research Program of China (Grant No. 2015CB953801)
文摘Phytolith study is a new branch of micropaleontology with an increasingly important role in geology, archaeology, and plant taxonomy. Phytoliths have several advantages considering their characteristics of small particle size, high production, wide distribution, anti-decomposition, in situ deposition, distinctive morphologies, and element sequestrating capacity. Phytolith assemblages in modem soil have been found to be closely related to modem vegetation types and climate conditions, which forms the basis for the quantitative study of paleoecology, paleoclimate, and bio-geochemical cycles. At present, phytolith studies generally focus on the following four aspects： （1） Morphology： about 260 unduplicated types of phytoliths have been identified in modem soil, of which 110 types are from grasses, 50 types from ferns, woody plants and other angiosperms, whereas the origin plants of the remaining 100 types are still under investigation. （2） Soil phytolith assemblages and vegetation： phytolith assemblages from the topsoil have been used to distinguish surface vegetation types including different forests and grasslands over a typical region. This model has been applied to restore past vegetation conditions and monitor the dynamic evolution of specific vegetation types at different temporal and spatial scales. （3） Soil phytolith assemblages and climate： quantitative and semi-quantitative relationships between phytolith assemblages and a series of climate parameters, such as annual mean temperature, annual mean precipitation and altitude, have been established through mathematical analysis. In this manner, quantitative reconstruction of paleoclimatic parameters has been achieved through the phytolith-climate transfer function model. （4） Soil phytolith and its sequestered elements： in this topic, the content of soil PhytOC （Phytolith-occluded Organic Carbon） and the importance of PhytOC in the bio-geochemical cycle have been the focus. The study of modem soil phytoliths has provided new approaches and many successful cases for solving specific problems in various fields, such as Earth science and archaeology. This study analyzed existing issues in addition to the abovementioned significant progresses, and provides directions for future research on modem soil phytoliths.
