目的:对锻炼心理学中的自我决定理论进行简要概述与分析。资料来源:检索中国期刊网、EBSCO和UMI资料库1997-01/2006-10有关自我决定理论的文献,检索词(限制为标题)为“self-determination theory,sport and exercise”,限定语言种类为...目的:对锻炼心理学中的自我决定理论进行简要概述与分析。资料来源:检索中国期刊网、EBSCO和UMI资料库1997-01/2006-10有关自我决定理论的文献,检索词(限制为标题)为“self-determination theory,sport and exercise”,限定语言种类为英文。资料选择:对所获得的文献进行仔细研读,从中选择有关自我决定理论在锻炼心理学中实证研究的文章,排除重复研究类文章。资料提炼:在53篇文献中,删除7篇内容重复的文献;对46篇文献进行分类整理,其中30篇选为参考文献。资料综合:自我决定论是新近发展起来的一种认知动机理论,代表着当下动机理论研究的趋向。它把人类的动机看成是一个从外在调节到内在动机之间的动态的连续体,并依据自主的程度对动机的类型进行了详细的划分,同时从满足人们基本心理需要的角度对促进外在动机内化的条件进行了探讨。结论:自我决定理论还有许多待以完善的地方,关于自我决定理论的一些假设还有待于进一步的验证。展开更多
The oxidation behavior of ferrovanadium spinel(FeV_(2)O_(4)),synthesized via high-temperature solid-state reaction,was investigated using thermogravimetry,X-ray diffractometry,and X-ray photoelectron spectroscopy over...The oxidation behavior of ferrovanadium spinel(FeV_(2)O_(4)),synthesized via high-temperature solid-state reaction,was investigated using thermogravimetry,X-ray diffractometry,and X-ray photoelectron spectroscopy over the temperature range of 450–700℃.The results revealed that the oxidation process of FeV_(2)O_(4)can be divided into three stages with the second stage being responsible for maximum weight gain due to oxidation.Three classical methods were employed to analyze the reaction mechanisms and model functions for distinct oxidation stages.The random nucleation and subsequent growth(A_(3))kinetic model was found to be applicable to both initial and secondary stage.The third stage of oxidation was consistent with the three-dimensional diffusion,spherical symmetry(D_(3))kinetic mode.Both the model-function method and the model-free method were utilized to investigate the apparent activation energy of the oxidation reaction at each stage.It was found that the intermediates including Fe_(3)O_(4),VO_(2),V_(2)O_(3),and Fe_(2.5)V_(7.11)O_(16),played significant roles in the oxidation process prior to the final formation of FeVO_(4)and V_(2)O_(5)through oxidation of FeV_(2)O_(4).展开更多
文摘目的:对锻炼心理学中的自我决定理论进行简要概述与分析。资料来源:检索中国期刊网、EBSCO和UMI资料库1997-01/2006-10有关自我决定理论的文献,检索词(限制为标题)为“self-determination theory,sport and exercise”,限定语言种类为英文。资料选择:对所获得的文献进行仔细研读,从中选择有关自我决定理论在锻炼心理学中实证研究的文章,排除重复研究类文章。资料提炼:在53篇文献中,删除7篇内容重复的文献;对46篇文献进行分类整理,其中30篇选为参考文献。资料综合:自我决定论是新近发展起来的一种认知动机理论,代表着当下动机理论研究的趋向。它把人类的动机看成是一个从外在调节到内在动机之间的动态的连续体,并依据自主的程度对动机的类型进行了详细的划分,同时从满足人们基本心理需要的角度对促进外在动机内化的条件进行了探讨。结论:自我决定理论还有许多待以完善的地方,关于自我决定理论的一些假设还有待于进一步的验证。
基金Project(cstb2022nscq-msx0801)supported by the Natural Science Foundation of Chongqing,ChinaProject(52004044)supported by the National Natural Science Foundation of China+2 种基金Project(ckrc2022030)supported by the Foundation of Chongqing University of Science and Technology,ChinaProject(YKJCX2220216)supported by the Graduate Research Innovation Project of Chongqing University of Science and Technology,ChinaProject(202311551007)supported by the National Undergraduate Training Program for Innovation and Entrepreneurship,China。
文摘The oxidation behavior of ferrovanadium spinel(FeV_(2)O_(4)),synthesized via high-temperature solid-state reaction,was investigated using thermogravimetry,X-ray diffractometry,and X-ray photoelectron spectroscopy over the temperature range of 450–700℃.The results revealed that the oxidation process of FeV_(2)O_(4)can be divided into three stages with the second stage being responsible for maximum weight gain due to oxidation.Three classical methods were employed to analyze the reaction mechanisms and model functions for distinct oxidation stages.The random nucleation and subsequent growth(A_(3))kinetic model was found to be applicable to both initial and secondary stage.The third stage of oxidation was consistent with the three-dimensional diffusion,spherical symmetry(D_(3))kinetic mode.Both the model-function method and the model-free method were utilized to investigate the apparent activation energy of the oxidation reaction at each stage.It was found that the intermediates including Fe_(3)O_(4),VO_(2),V_(2)O_(3),and Fe_(2.5)V_(7.11)O_(16),played significant roles in the oxidation process prior to the final formation of FeVO_(4)and V_(2)O_(5)through oxidation of FeV_(2)O_(4).
