Redundant serial robot kinematic chains with seven axes are an extension of classical 6-axis ones. The structural synthesis of these structures is useful to provide a working basis, including for the promotion of new ...Redundant serial robot kinematic chains with seven axes are an extension of classical 6-axis ones. The structural synthesis of these structures is useful to provide a working basis, including for the promotion of new structures with 7 axes, besides some already existing and applied structures. This paper summarizes kinematic chain structures using a combinatorial method by listing all possible variants of the structures with 7 axes, obtained by adding a rotational or translational coupling, in a parallel or perpendicular position, against the guiding structure with 6 axes consisting of two distinct modules： positioning module （3 axes） and orientation module （3 axes）. Representation of proper workspaces can help the designer in choosing the structure with maximum functionality for a given application.展开更多
Given the fact that cultures are a distinct way of identifying the mores and customs of a people, culture-specific units such as proverbs could serve as veritable teaching tools to pass on otherwise difficult language...Given the fact that cultures are a distinct way of identifying the mores and customs of a people, culture-specific units such as proverbs could serve as veritable teaching tools to pass on otherwise difficult language concepts to students, especially in the context of acquiring a foreign language. Proverbs can actually be viewed as succinct sayings that convey semantically-laden units expressing a people＇s worldview. In this paper, an attempt is made to illustrate the effectiveness of using culture-specific units like French proverbs to teach challenging grammatical features to English-speaking students in a French class. For example, grammatical aspects like verb conjugation French syntax, etc., can be effectively tackled. Translational techniques could then serve as pedagogical tools to bring about a better grasp of the foreign language being acquired, and in the process, exposure to a larger world culture would be achieved展开更多
文摘Redundant serial robot kinematic chains with seven axes are an extension of classical 6-axis ones. The structural synthesis of these structures is useful to provide a working basis, including for the promotion of new structures with 7 axes, besides some already existing and applied structures. This paper summarizes kinematic chain structures using a combinatorial method by listing all possible variants of the structures with 7 axes, obtained by adding a rotational or translational coupling, in a parallel or perpendicular position, against the guiding structure with 6 axes consisting of two distinct modules： positioning module （3 axes） and orientation module （3 axes）. Representation of proper workspaces can help the designer in choosing the structure with maximum functionality for a given application.
文摘Given the fact that cultures are a distinct way of identifying the mores and customs of a people, culture-specific units such as proverbs could serve as veritable teaching tools to pass on otherwise difficult language concepts to students, especially in the context of acquiring a foreign language. Proverbs can actually be viewed as succinct sayings that convey semantically-laden units expressing a people＇s worldview. In this paper, an attempt is made to illustrate the effectiveness of using culture-specific units like French proverbs to teach challenging grammatical features to English-speaking students in a French class. For example, grammatical aspects like verb conjugation French syntax, etc., can be effectively tackled. Translational techniques could then serve as pedagogical tools to bring about a better grasp of the foreign language being acquired, and in the process, exposure to a larger world culture would be achieved
