Shape and geometry

Xem 1-15 trên 15 kết quả Shape and geometry
  • Several techniques for fabrication of through-wafer vias in silicon have been compared in terms of achievable via diameter, shape and geometry and their influence on mechanical strength of silicon dies/wafers. Assessed techniques are: powder blasting, laser melt cutting, laser ablation, and deep reactive ion etching. The resolution of each method and influence on geometry was evaluated by fabrication through-wafer holes and slots in 240µm-thick silicon wafers. The mechanical strength is measured using ring-on-ring (RoR) and four-point bending methods.

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: The development and geometry of shape change in Arabidopsis thaliana cotyledon pavement cells

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  • merely an epiphenomenon of cultural attitudes; it gives them shape and direction, creates them as well as expresses them. 3. Existential philosophy, perhaps like all philosophies, typically finds it- ,self going in circles, trying to prove axioms with theorems, converting premises into methodological rules, using repetition and restatement in place of argument and illustration in place of proof. Here “the individual” appears as a conclusion, there as the presupposition, and there again as I lie rule.

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  • NX is one of the world’s most advanced and tightly integrated CAD/CAM/CAE product development solutions. Spanning the entire range of product development, NX delivers immense value to enterprises of all sizes. It simplifies complex product designs, thus speeding up the process of introducing products to the market. The NX software integrates knowledge-based principles, industrial design, geometric modeling, advanced analysis, graphic simulation, and concurrent engineering.

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  • The theory of polyhedral surfaces and, more generally, the field of discrete differential geometry are presently emerging on the border of differential and discrete geometry. Whereas classical differential geometry investigates smooth geometric shapes (such as surfaces), and discrete geometry studies geometric shapes with a finite number of elements (polyhedra), the theory of polyhedral surfaces aims at a development of discrete equivalents of the geometric notions and methods of surface theory. The latter appears then as a limit of the refinement of the discretization. ...

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  • Trim bodies View a topic Trim Body Split Body Trimmed Sheet Trim and Extend Untrim Divide Face Delete Edge 1. Trim Body Use Trim Body to trim one or more target bodies using a face or plane. You can specify the portion of the body to retain and the portion to discard. The target bodies take the shape of the trimming geometry.

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  • The availability of such rich imagery of large parts of the earth’s surface under many different viewing conditions presents enormous opportunities, both in computer vision research and for practical applications. From the standpoint of shape modeling research, Internet imagery presents the ultimate data set, which should enable modeling a significant portion of the world’s surface geometry at high resolution.

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  • Most of the RP technologies are additive; that is, the model is made automatically by building up contoured laminations sequentially from materials such as photopolymers, extruded or beaded plastic, and even paper until they reach the desired height. These processes can be used to form internal cavities, overhangs, and complex convoluted geometries as well as simple planar or curved shapes.

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  • Rather than construct the surface itself, sectioning uses a series of profiles, the edges of which follow lines of surface geometry. The modeling software's sectioning or contouring commands can almost instantaneously cut parallel sections through objects at designated intervals. This effectively streamlines the process of making serialized, parallel sections. Architects have experimented with sectional assemblies as a way to produce both surface and structure.

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  • Purpose: To understand the importance of working together. Time: 45 minutes Materials: Six envelopes labeled A, B, C, D, E, and F. In each envelope is a square cut into 5 pieces- use hard cardboard to cut the patterns. Note: This is for a class size of 30 students. If you have over 40 students, increase the number of squares or cut pieces per square.

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  • The mechanical removal of chips from the workpiece is called material removal. If the number of cutting edges and their macro-geometry and orientation are known, the operation is called a cutting process. These cutting processes play a major role in manufacturing because of their wide field of applications. Many different materials with a wide variety of shapes can be machined by cutting. Both roughing for high productivity and finishing to meet high precision demands can be achieved by cutting. ...

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  • Two major influences underpin Michael Shaw’s work, the first is Minimalist sculpture and the theories of Donald Judd; the second is Piero della Francesca and his: book on the Five Regular Solids (Libellus de Quinque Corporibus Regularibus) which describes innovative interpretations of solid geometry. The influence of minimalist sculpture focuses on Judd’s concept of ‘specific objects’ where, as Judd writes ‘the shape, image, colour and surface are single’.

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  • Ebook The New Origami contains dozens of original projects that employ cutting-edge techniques, including: modular origami (using interlocking pieces of paper); performance origami (accompanied by a story or explanation); geometrical origami (illustrating principals of geometry); kasaneori or layered paperfolding (using overlapping layers to create "ribbons" of color); puzzle origami (featuring interchangeable parts that create a brain-teasing effect); practical origami (making useable objects like envelopes, frames, and wallets); multiple symmetry (sinking, pleating, and folding to create ...

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  • Fig. 18.12 Surface flaw shape parameter. (From Ref. 22. Adapted by permission of Prentice-Hall, Inc., Englewood Cliffs, New Jersey.) To approximate the effects of strain hardening, a flow stress cr0, taken to be an average of the yield and ultimate strengths, is often used when computing the plastic collapse stress. The plastic collapse stress ac is that applied stress which produces cr0 across the remaining uncracked ligament, and is the maximum applied stress that a perfectly plastic material can sustain. This stress may be determined using a limit load analysis.

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  • Drawing a cartoon house can be quite difficult if you don't break down the steps and work with basic geometric shapes. However, if you start simple, you can have a lot of fun building a house that you'd like to live in. Put on your hard hat, and let's get started. Step 1 - Building the Frame Okay, you took math, and you can draw a fairly straight line. We're going to go back to geometry and make some shapes. If you'd like, you can reference the 1 point perspective tutorial available HERE and learn how to draw in 3D....

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