This paper presents an indoor floor positioning method with the smartphone’s barometer for the purpose of solving the problem of low availability and high environmental dependence of the traditional floor positioning...This paper presents an indoor floor positioning method with the smartphone’s barometer for the purpose of solving the problem of low availability and high environmental dependence of the traditional floor positioning technology.First,an initial floor position algorithm with the“entering”detection algorithm has been obtained.Second,the user’s going upstairs or downstairs activities are identified by the characteristics of the air pressure fluctuation.Third,the moving distance in the vertical direction and the floor change during going upstairs or downstairs are estimated to obtain the accurate floor position.In order to solve the problem of the floor misjudgment from different mobile phone’s barometers,this paper calculates the pressure data from the different cell phones,and effectively reduce the errors of the air pressure estimating the elevation which is caused by the heterogeneity of the mobile phones.The experiment results show that the average correct rate of the floor identification is more than 85%for three types of the cell phones while reducing environmental dependence and improving availability.Further,this paper compares and analyzes the three common floor location methods–the WLAN Floor Location(WFL)method based on the fingerprint,the Neural Network Floor Location(NFL)methods,and the Magnetic Floor Location(MFL)method with our method.The experiment results achieve 94.2%correct rate of the floor identification with Huawei mate10 Pro mobile phone.展开更多
New versions of the universal Jd-Di exchange clinopyroxene barometer for peridotites,pyroxenites and eclogites,and also garnet barometer for eclogites and peridotites were developed.They were checked using large exper...New versions of the universal Jd-Di exchange clinopyroxene barometer for peridotites,pyroxenites and eclogites,and also garnet barometer for eclogites and peridotites were developed.They were checked using large experimental data sets for eciogitic（~530） and peridotitic systems（〉650）.The precision of the universal Cpx barometer for peridotites based on Jd-Di exchange is close to Cr-Tschermal展开更多
The aim is to present and discuss the level of sustainability of Ribeirao Preto, Brazil based on Sustainability Indicators using the Barometer of Sustainability. The Barometer of Sustainability is a method of two-dime...The aim is to present and discuss the level of sustainability of Ribeirao Preto, Brazil based on Sustainability Indicators using the Barometer of Sustainability. The Barometer of Sustainability is a method of two-dimensional analysis which assesses the wellbeing in human and ecological dimensions of an equitable and systematic system, not leaving the data overlap, not masking the results and finding in a Wellbeing Index. The results showed that Ribeir^o Preto is on intermediate level in relation to sustainable development with better performance in human dimensions. The themes of Soil and Biodiversity were considered unsustainable in the analysis of findings. This reveals that the city presents a greater concern with the socio-economic issues at the expense of environmental issues.展开更多
基金funded by the National Key Research and Development Project from the Ministry of Science and Technology of the People’s Republic of China[grant number 2016YFB0502204].
文摘This paper presents an indoor floor positioning method with the smartphone’s barometer for the purpose of solving the problem of low availability and high environmental dependence of the traditional floor positioning technology.First,an initial floor position algorithm with the“entering”detection algorithm has been obtained.Second,the user’s going upstairs or downstairs activities are identified by the characteristics of the air pressure fluctuation.Third,the moving distance in the vertical direction and the floor change during going upstairs or downstairs are estimated to obtain the accurate floor position.In order to solve the problem of the floor misjudgment from different mobile phone’s barometers,this paper calculates the pressure data from the different cell phones,and effectively reduce the errors of the air pressure estimating the elevation which is caused by the heterogeneity of the mobile phones.The experiment results show that the average correct rate of the floor identification is more than 85%for three types of the cell phones while reducing environmental dependence and improving availability.Further,this paper compares and analyzes the three common floor location methods–the WLAN Floor Location(WFL)method based on the fingerprint,the Neural Network Floor Location(NFL)methods,and the Magnetic Floor Location(MFL)method with our method.The experiment results achieve 94.2%correct rate of the floor identification with Huawei mate10 Pro mobile phone.
基金supported by RBRF (Grant Nos.11-05-00060a,16-05-00860a)
文摘New versions of the universal Jd-Di exchange clinopyroxene barometer for peridotites,pyroxenites and eclogites,and also garnet barometer for eclogites and peridotites were developed.They were checked using large experimental data sets for eciogitic（~530） and peridotitic systems（〉650）.The precision of the universal Cpx barometer for peridotites based on Jd-Di exchange is close to Cr-Tschermal
文摘The aim is to present and discuss the level of sustainability of Ribeirao Preto, Brazil based on Sustainability Indicators using the Barometer of Sustainability. The Barometer of Sustainability is a method of two-dimensional analysis which assesses the wellbeing in human and ecological dimensions of an equitable and systematic system, not leaving the data overlap, not masking the results and finding in a Wellbeing Index. The results showed that Ribeir^o Preto is on intermediate level in relation to sustainable development with better performance in human dimensions. The themes of Soil and Biodiversity were considered unsustainable in the analysis of findings. This reveals that the city presents a greater concern with the socio-economic issues at the expense of environmental issues.
