نتایج جستجو برای: toolpath strategies
تعداد نتایج: 388898 فیلتر نتایج به سال:
S.H. Choi and W.K. Zhu Department of Industrial and Manufacturing Systems Engineering, The University of Hong Kong, Hong Kong Abstract Reviewed, accepted September 10, 2008 This paper proposes an algorithm for planning efficient concurrent toolpaths to reduce the build-time of fabricating multi-material prototypes by layered manufacturing. The algorithm first sorts and partitions slice contours...
the effect of learning strategies on the speaking ability of iranian students in the context of language institutes abstract language learning strategies are of the most important factors that help language learners to learn a foreign language and how they can deal with the four language skills specifically speaking skill effectively. acknowledging the great impact of learning strategies...
the aim of the current study was to investigate the relationship among efl learners learning style preferences, use of language learning strategies, and autonomy. a total of 148 male and female learners, between the ages of 18 and 30, majoring in english literature and english translation at islamic azad university, central tehran were randomly selected. a package of three questionnaires was ad...
In milling, the advancement of CAM strategies has increased need for tailored algorithms semi-finished phase computation. some cases (e.g., thin-wall milling), variable radial engagement tool during toolpath is desired, leading to non-uniform machining allowance on component that could be achieved only with a offset algorithm, i.e., where distance initial contour varies along input. This work p...
during the process of reading, sometimes learners use ineffective and inefficient strategies and some factors may influence their use of strategies. perhaps critical thinking is one of these factors. this study aims to identify those categories of reading strategies that are mostly used by iranian efl learners and to see if there is any significant relationship between the critical thinking abi...
The parts produced by additive manufacturing are inherently subjected to discretization effects due their layer-based addition. stair-stepping effect on the surface quality is inevitable for most of techniques and it becomes more dominant regions having small inclinations. influences mechanical properties as well aesthetic perception. Many researchers have been presented several approaches over...
In the modern manufacturing systems, the use of thermal cutting techniques using oxyfuel, plasma and laser have become indispensable for the shape forming of high quality complex components; however, the conventional chip removal production techniques still have its widespread space in the manufacturing industry. Both these types of machining operations require the positioning of end effector t...
Purpose Fibre-reinforced additive manufacturing (FRAM) with short and continuous fibres yields light stiff parts thus increasing industry acceptance. High material anisotropy specific constraints shift the focus towards design for AM (DfAM), particularly on toolpath strategies. Assessing design-property-processing relations of infill patterns is fundamental to establishing guidelines FRAM. Desi...
One of the major goals of the Sustainable Agriculture Farming initiatives at UC Davis is to provide information about the feasibility of adopting conservation tillage and cover cropping at the farm level. The project includes two tillage schemes: standard tillage (ST) and conservation tillage (CT), and three farming methods: conventional, organic, and winter legume cover crop. All three product...
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