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.
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.
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.
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. ...
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.
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.
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.
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
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.
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 ...
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. ...
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.
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’.
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....