The main factors that affect infrared surveying in roadway include that property of rock, electromechanical equipments running, environmental temperature, hydrogeology and support material etc. This paper sums up the ...The main factors that affect infrared surveying in roadway include that property of rock, electromechanical equipments running, environmental temperature, hydrogeology and support material etc. This paper sums up the expression features of these disturbing factor through theoretical analysis and actual measurement contrasts and considers that some tunnel section does not suit to go on infrared survey, for instance, soft rock meets water to expanse, and surround rock has obviously pouring water. The basic methods had made evading disturbing of electromechanical equipments, environmental temperature and protect material etc to become possible. It is helpful that offers infrared surveying technical service for production safety better in roadway.展开更多
While the rising number of elderly population has caused widespread concern in society, the quality of life of elderly has become a hot research topic too. According to the current study, theoretical research still ne...While the rising number of elderly population has caused widespread concern in society, the quality of life of elderly has become a hot research topic too. According to the current study, theoretical research still needs to be strengthened.Compared with the theoretical research, emperical research is significantly increased.Scholars have taken a full disscussion to the quality of life of the elderly, in addition, the influential factors also be analysed from different angle. From the perspective of quality of life, this paper reviewed the different kind way ofthe definition,the research of the elderly＇ quality of life as well as the influencing factors.展开更多
Algal organic materials （AOMs） are one critical factor affecting the efficiency of modified clays used for the mitigation of harrnful algal blooms （HABs）. This study was conducted to develop a deeper understanding...Algal organic materials （AOMs） are one critical factor affecting the efficiency of modified clays used for the mitigation of harrnful algal blooms （HABs）. This study was conducted to develop a deeper understanding of the mechanisms and factors affecting the adsorption of AOMs onto modified clays. Sodium alginate （polysaccharide） and kaolinite modified with polyaluminium chloride （PAC1） were used as AOMs and modified clay model substances, respectively, and the effects of modifier dosage, contact time, solution pH and ionic strength were investigated through batch adsorption experiments. Kinetics revealed that the alginate adsorption rate was described well by a pseudo-second order model. PACl effectively enhanced the adsorption capacity of kaolinite and increased the adsorption rate, and the optimum additive amount of PACl was 5%. The experimental data fitted both the Freundlich and Langmuir adsorption equations well. The adsorption thermodynamics for alginate onto modified clays suggests that alginate adsorption is a spontaneous process. The adsorption of alginate onto modified clays was highly dependent on pH, with a decrease in adsorption observed with increased pH to 9.48, but the opposite was true above pH 9.48. Finally, adsorption increased with increasing ionic strength.展开更多
Dynamic tire forces are the main factor affecting the measurement accuracy of the axle weight of moving vehicle.This paper presents a novel method to reduce the influence of the dynamic tire forces on the weighing acc...Dynamic tire forces are the main factor affecting the measurement accuracy of the axle weight of moving vehicle.This paper presents a novel method to reduce the influence of the dynamic tire forces on the weighing accuracy.On the basis of analyzing the characteristic of the dynamic tire forces,the objective optimization equation is constructed.The optimization algorithm is presented to get the optimal estimations of the objective parameters.According to the estimations of the parameters,the dynamic tire forces are separated from the axle weigh signal.The results of simulation and field experiments prove the effectiveness of the proposed method.展开更多
文摘The main factors that affect infrared surveying in roadway include that property of rock, electromechanical equipments running, environmental temperature, hydrogeology and support material etc. This paper sums up the expression features of these disturbing factor through theoretical analysis and actual measurement contrasts and considers that some tunnel section does not suit to go on infrared survey, for instance, soft rock meets water to expanse, and surround rock has obviously pouring water. The basic methods had made evading disturbing of electromechanical equipments, environmental temperature and protect material etc to become possible. It is helpful that offers infrared surveying technical service for production safety better in roadway.
文摘While the rising number of elderly population has caused widespread concern in society, the quality of life of elderly has become a hot research topic too. According to the current study, theoretical research still needs to be strengthened.Compared with the theoretical research, emperical research is significantly increased.Scholars have taken a full disscussion to the quality of life of the elderly, in addition, the influential factors also be analysed from different angle. From the perspective of quality of life, this paper reviewed the different kind way ofthe definition,the research of the elderly＇ quality of life as well as the influencing factors.
基金Supported by the National Natural Science Foundation of China for Young Scholars(No.40906055)the National Natural Science Foundation of China for Creative Research Groups(No.41121064)the National Basic Research Programof China (973 Program) (No.2010CB428706)
文摘Algal organic materials （AOMs） are one critical factor affecting the efficiency of modified clays used for the mitigation of harrnful algal blooms （HABs）. This study was conducted to develop a deeper understanding of the mechanisms and factors affecting the adsorption of AOMs onto modified clays. Sodium alginate （polysaccharide） and kaolinite modified with polyaluminium chloride （PAC1） were used as AOMs and modified clay model substances, respectively, and the effects of modifier dosage, contact time, solution pH and ionic strength were investigated through batch adsorption experiments. Kinetics revealed that the alginate adsorption rate was described well by a pseudo-second order model. PACl effectively enhanced the adsorption capacity of kaolinite and increased the adsorption rate, and the optimum additive amount of PACl was 5%. The experimental data fitted both the Freundlich and Langmuir adsorption equations well. The adsorption thermodynamics for alginate onto modified clays suggests that alginate adsorption is a spontaneous process. The adsorption of alginate onto modified clays was highly dependent on pH, with a decrease in adsorption observed with increased pH to 9.48, but the opposite was true above pH 9.48. Finally, adsorption increased with increasing ionic strength.
文摘Dynamic tire forces are the main factor affecting the measurement accuracy of the axle weight of moving vehicle.This paper presents a novel method to reduce the influence of the dynamic tire forces on the weighing accuracy.On the basis of analyzing the characteristic of the dynamic tire forces,the objective optimization equation is constructed.The optimization algorithm is presented to get the optimal estimations of the objective parameters.According to the estimations of the parameters,the dynamic tire forces are separated from the axle weigh signal.The results of simulation and field experiments prove the effectiveness of the proposed method.
