Direct Generative Vehicle Machining

Low Cost Direct Machining of Terahertz Waveguide Structures

We present a low cost technique of direct machining of precision waveguide structures on metal blocks. The micro machine setup employs compact, precision numerically controlled (NC) stages to automate the machining process. Endmills are held in high speed pneumatic spindles, while other features are made by scraping (”broaching”) in repeated small passes. We can set up two endmills and three br...

Machining Characteristics of Direct Laser Deposited Tungsten Carbide

Direct adaptive longitudinal control of vehicle platoons

An important aspect of an automated highway system design is the synthesis of an automatic vehicle following system. Associated with automatic vehicle following systems is the problem of the stability of a string of vehicles, i.e., the problem of spacing error propagation, and in some cases, amplification upstream from one vehicle to another, due to some disturbance at the head of the string. R...

Modeling Variability - From Direct Modeling to Generative Modeling

The paper shows how mechanisms of existing modeling languages (exemplified by UML 2.0) support the direct modeling of variability in software product lines/system families, and identifies where generative modeling (similar to generative programming) should be applied. Existing mechanisms are not only well-known mechanisms like composition, specialization, and generics/templates, but also less k...

تحلیل و نقد کتاب The Generative Lexicon

مقالة حاضر به معرفی و نقد کتاب واژگان زایشی اثر جیمز پاستیوسکی می‌پردازد. نظریة واژگان زایشی چهارچوبی را برای نمایش و بازنمود دانش زبانی پیش می‌نهد که بازنمایی‌های معنایی ـ واژگانی عرضه‌شده در آن درواقع بخشی از اطلاعات ذخیره‌شده در واژگان‌اند. در این رویکرد، تلاش بر این است تا کاربرد خلاقانة زبان شرح داده شود و با در‌نظرگرفتن ساختار و سطوح بازنمودیِ چندگانه برای انواع مختلف اطلاعات واژگ...