Syrian refugees in Gaziantep—because of turmoil in home country are slowly integrating into local society;however,social process is easy neither for them nor for the locals.Two cultures emerged as a result of presenc...Syrian refugees in Gaziantep—because of turmoil in home country are slowly integrating into local society;however,social process is easy neither for them nor for the locals.Two cultures emerged as a result of presence of cultural values and lifestyles of both the locals and refugees.Refugees,initially hesitant upon arrival,gradually settled and changed in behaviours,goals,and expectations.Due to changing social climate,local residents experienced a greater amount of anxiety toward various aspects of social life.Aim of this study is to identify and,subsequently,eliminate issues of social integration experienced by refugees in Gaziantep to promote peaceful coexistence between them and the locals.To achieve these,it is necessary to analyze,in detail,needs and expectations of refugees to ensure that expectations of both refugees and residents are fulfilled.185 adult refugees in Gaziantep and 80 adults in a camp were surveyed by researcher to understand expectations of refugees regarding social life.Playgrounds,sports areas,rest areas,car areas,pedestrian roads,parking lots,recreational facilities,mosques,condolence places,parks,shopping areas,cafes,and tea gardens were evaluated in survey.Questionnaires were graphically displayed in Microsoft Excel after being analyzed as percentage in SPSS program.This work displays that there is a need for good planning while evaluating capacity and expectations of social reinforcement areas in city,ensuring expectations of both refugees and city dwellers for social facilities to be used,telling of culture of city dwellers.展开更多
以2014—2019年珲春地区红外相机拍摄的东北虎数据为基础,基于XGBoost算法构建了虎出没区域风险等级划分模型。由模型检验可知:模型的准确率为93.51%,精确率为93.85%,召回率为93.08%,F1值为93.31%,Cohen s Kappa统计系数为90.2%。研究...以2014—2019年珲春地区红外相机拍摄的东北虎数据为基础,基于XGBoost算法构建了虎出没区域风险等级划分模型。由模型检验可知:模型的准确率为93.51%,精确率为93.85%,召回率为93.08%,F1值为93.31%,Cohen s Kappa统计系数为90.2%。研究结果表明:基于XGBoost算法构建的人-虎共存区域风险等级划分模型分类效果好、预测准确度高,运用该模型对人-虎共存区域进行风险等级划分是可行的。展开更多
The coexistence of wireless body sensor networks(WBSNs) is a very challenging problem, due to strong interference, which seriously affects energy consumption and spectral reuse. The energy efficiency and spectral effi...The coexistence of wireless body sensor networks(WBSNs) is a very challenging problem, due to strong interference, which seriously affects energy consumption and spectral reuse. The energy efficiency and spectral efficiency are two key performance evaluation metrics for wireless communication networks. In this paper, the fundamental tradeoff between energy efficiency and area spectral efficiency of WBSNs is first investigated under the Poisson point process(PPP) model and Matern hard-core point process(HCPP) model using stochastic geometry. The circuit power consumption is taken into consideration in energy efficiency calculation. The tradeoff judgement coefficient is developed and is shown to serve as a promising complementary measure. In addition, this paper proposes a new nearest neighbour distance power control strategy to improve energy efficiency. We show that there exists an optimal transmit power highly dependant on the density of WBSNs and the nearest neighbour distance. Some important properties are also addressed in the analysis of coexisting WBSNs based on the IEEE 802.15.4 standard, such as the impact of intensity nodes distribution,optimal guard zone, and outage probability. Simulation results show that the proposed power control design can reduce the outage probability and enhance energy efficiency. Energy efficiency and area spectral efficiency of the HCPP model are better than those of the PPP model. In addition, the optimal density of WBSNs coexistence is obtained.展开更多
文摘Syrian refugees in Gaziantep—because of turmoil in home country are slowly integrating into local society;however,social process is easy neither for them nor for the locals.Two cultures emerged as a result of presence of cultural values and lifestyles of both the locals and refugees.Refugees,initially hesitant upon arrival,gradually settled and changed in behaviours,goals,and expectations.Due to changing social climate,local residents experienced a greater amount of anxiety toward various aspects of social life.Aim of this study is to identify and,subsequently,eliminate issues of social integration experienced by refugees in Gaziantep to promote peaceful coexistence between them and the locals.To achieve these,it is necessary to analyze,in detail,needs and expectations of refugees to ensure that expectations of both refugees and residents are fulfilled.185 adult refugees in Gaziantep and 80 adults in a camp were surveyed by researcher to understand expectations of refugees regarding social life.Playgrounds,sports areas,rest areas,car areas,pedestrian roads,parking lots,recreational facilities,mosques,condolence places,parks,shopping areas,cafes,and tea gardens were evaluated in survey.Questionnaires were graphically displayed in Microsoft Excel after being analyzed as percentage in SPSS program.This work displays that there is a need for good planning while evaluating capacity and expectations of social reinforcement areas in city,ensuring expectations of both refugees and city dwellers for social facilities to be used,telling of culture of city dwellers.
文摘以2014—2019年珲春地区红外相机拍摄的东北虎数据为基础,基于XGBoost算法构建了虎出没区域风险等级划分模型。由模型检验可知:模型的准确率为93.51%,精确率为93.85%,召回率为93.08%,F1值为93.31%,Cohen s Kappa统计系数为90.2%。研究结果表明:基于XGBoost算法构建的人-虎共存区域风险等级划分模型分类效果好、预测准确度高,运用该模型对人-虎共存区域进行风险等级划分是可行的。
基金supported by EPSRC TOUCAN Project (Grant No. EP/L020009/1)EU FP7 QUICK Project (Grant No. PIRSES-GA-2013-612652)+3 种基金EU H2020 ITN 5G Wireless Project (Grant No. 641985)National Natural Science Foundation of China (Grant Nos. 61210002, 61401256)MOST 863 Project in 5G (Grant No. 2014AA01A701)International S&T Cooperation Program of China (Grant No. 2014DFA11640)
文摘The coexistence of wireless body sensor networks(WBSNs) is a very challenging problem, due to strong interference, which seriously affects energy consumption and spectral reuse. The energy efficiency and spectral efficiency are two key performance evaluation metrics for wireless communication networks. In this paper, the fundamental tradeoff between energy efficiency and area spectral efficiency of WBSNs is first investigated under the Poisson point process(PPP) model and Matern hard-core point process(HCPP) model using stochastic geometry. The circuit power consumption is taken into consideration in energy efficiency calculation. The tradeoff judgement coefficient is developed and is shown to serve as a promising complementary measure. In addition, this paper proposes a new nearest neighbour distance power control strategy to improve energy efficiency. We show that there exists an optimal transmit power highly dependant on the density of WBSNs and the nearest neighbour distance. Some important properties are also addressed in the analysis of coexisting WBSNs based on the IEEE 802.15.4 standard, such as the impact of intensity nodes distribution,optimal guard zone, and outage probability. Simulation results show that the proposed power control design can reduce the outage probability and enhance energy efficiency. Energy efficiency and area spectral efficiency of the HCPP model are better than those of the PPP model. In addition, the optimal density of WBSNs coexistence is obtained.
