The Throughput Diagram — A General, Realistic Model of the Manufacturing Process

A Computational Mechanics Model for the Brim Forming Process in Paperboard Container Manufacturing

Journal of Manufacturing Science and Engineering ◽

10.1115/1.1580527 ◽

2003 ◽

Vol 125 (3) ◽

pp. 476-483 ◽

Cited By ~ 8

Author(s):

M. K. Ramasubramanian ◽

K. Muthuraman

Keyword(s):

Manufacturing Process ◽

Element Model ◽

Realistic Model ◽

Plastic Behavior ◽

Displacement Curve ◽

Forming Process ◽

Die Geometry ◽

Mechanics Model ◽

Highly Nonlinear ◽

Container Manufacturing

The manufacturing process of brim forming in paperboard containers consists of taking a thin paperboard shell and forming a brim to provide additional stiffness to the structure. A paper cup is an example of such a structure manufactured at rates exceeding 300 units per minute. A realistic model for the manufacturing process is not available and the effects of process and material parameters are not well understood. In this study, a finite element model of this highly nonlinear problem is presented. The model takes into account the material orthotropy and nonlinear elastic-plastic behavior, die paperboard contact interaction during loading and unloading, and friction between the metal die and paperboard, die geometry, and environmental conditions. Model predictions of the force-displacement curve agree well with the experimentally observed results.

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Identifying groups of airborne particles by ordination

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100172012 ◽

1994 ◽

Vol 52 ◽

pp. 856-857

Author(s):

M. Shlepr ◽

C. M. Vicroy

Keyword(s):

Elemental Analysis ◽

Energy Dispersive Spectroscopy ◽

Manufacturing Process ◽

Spatial Representation ◽

Airborne Particles ◽

Common Source ◽

Data Set ◽

Microelectronics Industry ◽

Induced Changes ◽

Source Materials

The microelectronics industry is heavily tasked with minimizing contaminates at all steps of the manufacturing process. Particles are generated by physical and/or chemical fragmentation from a mothersource. The tools and macrovolumes of chemicals used for processing, the environment surrounding the process, and the circuits themselves are all potential particle sources. A first step in eliminating these contaminants is to identify their source. Elemental analysis of the particles often proves useful toward this goal, and energy dispersive spectroscopy (EDS) is a commonly used technique. However, the large variety of source materials and process induced changes in the particles often make it difficult to discern if the particles are from a common source.Ordination is commonly used in ecology to understand community relationships. This technique usespair-wise measures of similarity. Separation of the data set is based on discrimination functions. Theend product is a spatial representation of the data with the distance between points equaling the degree of dissimilarity.

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On the influence of specimen thickness in TEM images of super-conducting vortices

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100166087 ◽

1996 ◽

Vol 54 ◽

pp. 724-725

Author(s):

J. Bonevich ◽

D. Capacci ◽

G. Pozzi ◽

K. Harada ◽

H. Kasai ◽

...

Keyword(s):

Flux Line ◽

Analytical Form ◽

Realistic Model ◽

Electron Holography ◽

Specimen Thickness ◽

Flux Tubes ◽

Analytical Expression ◽

Flux Lines ◽

Normal Core ◽

Two Parameters

The successful observation of superconducting flux lines (fluxons) in thin specimens both in conventional and high Tc superconductors by means of Lorentz and electron holography methods has presented several problems concerning the interpretation of the experimental results. The first approach has been to model the fluxon as a bundle of flux tubes perpendicular to the specimen surface (for which the electron optical phase shift has been found in analytical form) with a magnetic flux distribution given by the London model, which corresponds to a flux line having an infinitely small normal core. In addition to being described by an analytical expression, this model has the advantage that a single parameter, the London penetration depth, completely characterizes the superconducting fluxon. The obtained results have shown that the most relevant features of the experimental data are well interpreted by this model. However, Clem has proposed another more realistic model for the fluxon core that removes the unphysical limitation of the infinitely small normal core and has the advantage of being described by an analytical expression depending on two parameters (the coherence length and the London depth).

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Water in the Vinegar Manufacturing Process

Industrial & Engineering Chemistry ◽

10.1021/ie50507a639 ◽

1952 ◽

Vol 44 (3) ◽

pp. 449-449

Author(s):

Rudolph Allgeier ◽

Reuben Wisthoff ◽

Frank Hildebrandt

Keyword(s):

Manufacturing Process

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A Perspective on Low Molecular Weight Heparins in the Management of Thrombosis

Hämostaseologie ◽

10.1055/s-0038-1655237 ◽

1993 ◽

Vol 13 (S 01) ◽

pp. S5-S11 ◽

Cited By ~ 4

Author(s):

Debra Hoppensteadt ◽

Jeanine Walenga ◽

A Ahsan ◽

O Iqbal ◽

W Jeske ◽

...

Keyword(s):

Molecular Weight ◽

Mechanism Of Action ◽

Manufacturing Process ◽

Laboratory Tests ◽

Low Molecular Weight ◽

Low Molecular Weight Heparins ◽

Pharmacological Management

SummaryThe introduction of low molecular weight heparins has added a new dimension to the pharmacological management of thrombotic disorders. Because of different chemical and pharmacological characteristics, due to the manufacturing process, each LMWH should be considered as a distinct entitity and only be used for its given indication. A list of commercially available LMWHs is included. The mechanism of action of the LMWHs and their use in various disorders are discussed. Available laboratory tests for monitoring LMWHs are presented and their limitations pointed out.

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