Experimental Validation of Rapid Prototype Model of Fan and Prediction of Performance Characteristics of the Cooling Fan for an Armored Vehicle

2005 ◽  
Author(s):  
A. Vinayagam ◽  
P. L. Sathyanarayanan ◽  
N. V. Mahalakshmi
Keyword(s):  
Experimental Validation ◽  
Rapid Prototype ◽  
Performance Characteristics ◽  
Prototype Model ◽  
Cooling Fan ◽  
Armored Vehicle

Abstractions and exemplars: The measure noun phrase alternation in German

2018 ◽  
Vol 29 (4) ◽  
pp. 729-771
Author(s):  
Roland Schäfer
Keyword(s):  
Noun Phrase ◽  
Cognitive Linguistics ◽  
Experimental Validation ◽  
Native Speakers ◽  
Noun Phrases ◽  
Prototype Model ◽  
Weak Effect ◽  
Specific Measure ◽  
Corpus Study ◽  
Large Corpus

AbstractIn this paper, an alternation in German measure noun phrases is examined under a varying-abstraction perspective. In a specific measure NP construction, the embedded kind-denoting noun either agrees in case with the measure noun (eine Tasse guter Kaffee‘a cup of good coffee’) or it stands in the genitive (eine Tasse guten Kaffees). Each of the two alternants is syntactically similar to a non-alternating construction. I propose a prototype model which assigns a common prototypical meaning to each of the alternants and its corresponding non-alternating construction. Based on this, I argue that lexical, morphosyntactic, and stylistic features help to predict the choice of the alternant. A large corpus study is presented which supports this analysis. However, in addition to the prototype effects, an exemplar effect is also shown to influence the choice, namely the relative frequencies with which lemmas occur in the non-alternating constructions. I argue that allowing both prototype and exemplar effects is more adequate than following radical prototype or exemplar approaches. It is also verified in two experiments that the corpus-derived model corresponds to the behaviour of native speakers. The weak effect size of the experimental validation is discussed in the context of corpus-based cognitive linguistics and the validation of corpus-derived models.

scholarly journals Validation of Numerically Simulated Rapid-prototype Model by Photoelastic Coating

2014 ◽  
Vol 18 (1) ◽  
pp. 14-24 ◽  
Author(s):  
Peter Ficzere ◽  
Lajos Borbas ◽  
Adam Torok
Keyword(s):  
Rapid Prototype ◽  
Prototype Model ◽  
Photoelastic Coating

Experimental Validation of Ducted Low-Speed Cooling Fan Noise Prediction Methods Including Broadband Scattering

2016 ◽  
Author(s):  
Julien Christophe ◽  
Korcan Kucukcoskun ◽  
Dominic Lallier-Daniels ◽  
Marlène Sanjosé ◽  
Stephane Moreau
Keyword(s):  
Experimental Validation ◽  
Prediction Methods ◽  
Noise Prediction ◽  
Fan Noise ◽  
Low Speed ◽  
Cooling Fan

Detailed Study of an Efficient Small Diameter Automotive Engine Cooling Fan System

2003 ◽  
Author(s):  
S. Moreau ◽  
F. Bakir
Keyword(s):  
Small Diameter ◽  
Rapid Prototype ◽  
Efficiency Improvement ◽  
Test Rig ◽  
Cfd Simulations ◽  
Automotive Engine ◽  
Engine Cooling ◽  
Cooling Fan ◽  
Radial Equilibrium

This paper deals with stator efficiency improvement meant for automotive engine cooling fan systems. A new rapid prototype of a long stator designed for a small diameter Valeo rotor (320 mm) has been manufactured and tested on a recently designed Valeo-LEMFI test rig. The following points are presented: • Overall performances of the 320 mm rotor alone. • Overall performances of the 320 mm rotor combined with the new long stator vanes: this study confirms the gain of efficiency foreseen previously with the simplified radial equilibrium code VENTAX. • Steady velocities measured 41 mm downstream of the stage configuration: These measurements obtained by using a 5-hole probe show high deflection carried out by the stators with long chord lengths. Comparisons with preliminary CFD simulations are also shown for both the overall performances and the local velocities.

scholarly journals Occipitofrontal Switching for Simultaneous Correction of Synostotic Frontal and Occipital Plagiocephaly: A Novel Surgical Technique

2010 ◽  
Vol 3 (3) ◽  
pp. 161-166 ◽  
Author(s):  
Peter Chanwoo Kim ◽  
Yong Don Kim ◽  
Dae Hwan Park
Keyword(s):  
Rapid Prototype ◽  
Frontal Bone ◽  
Prototype Model ◽  
Virtual Surgery ◽  
Bone And Bones ◽  
Time Saving ◽  
Skull Model ◽  
Coronal Synostosis ◽  
Plaster Model

Plagiocephaly has traditionally been corrected by unilateral or bilateral frontal bone advancement or rotation using bone-molding forceps and distraction devices. Complete symmetrical correction of deformed frontal bones is considered almost impossible because the curvature of each frontal bone varies. We evaluated the feasibility of measuring the optimal curvature of frontal and occipital bones using a plaster skull model and applying these measurements to “switch” them for simultaneous correction of frontal and occipital plagiocephaly. A 2-year-old girl suffering from unifrontal flattening visited our clinic. Unilateral coronal synostosis was observed. The 3-D rapid prototype model and skull replica method using thin paper clay were used for preplanned virtual surgery. The triangular bone was harvested from the contralateral bulging side of the occipital bone (“occipitofrontal switching”) for the best optimal curvature in the affected frontal bone. Another triangular bone was harvested from the ipsilateral flattened side of the frontal bone, and bones were switched with each other. Further bending of the frontal or occipital segment was not necessary for optimal curvature. Symmetrical correction was made by switching the triangular bone of the frontal area with that of the contralateral occipital area. Revision has not been necessary, and infection was not observed at 1-year follow-up. Our novel technique of preplanning surgery using a 3-D plaster model for simultaneous correction of frontal and occipital plagiocephaly is effective and time-saving.

Patient-specific puzzle implant preformed with 3D-printed rapid prototype model for combined orbital floor and medial wall fracture

2018 ◽  
Vol 71 (4) ◽  
pp. 496-503 ◽  
Author(s):  
Young Chul Kim ◽  
Kyung Hyun Min ◽  
Jong Woo Choi ◽  
Kyung S. Koh ◽  
Tae Suk Oh ◽  
...  
Keyword(s):  
Rapid Prototype ◽  
Medial Wall ◽  
Orbital Floor ◽  
Patient Specific ◽  
Prototype Model ◽  
3D Printed

Customized Orbital Wall Reconstruction Using Three-Dimensionally Printed Rapid Prototype Model in Patients With Orbital Wall Fracture

2016 ◽  
Vol 27 (8) ◽  
pp. 2020-2024 ◽  
Author(s):  
Tae Suk Oh ◽  
Woo Shik Jeong ◽  
Taik Jin Chang ◽  
Kyung S. Koh ◽  
Jong-Woo Choi
Keyword(s):  
Rapid Prototype ◽  
Prototype Model ◽  
Orbital Wall

Simultaneous repair of two large cranial defects using rapid prototyping and custom computer-designed titanium plates: a case report

2011 ◽  
Vol 225 (11) ◽  
pp. 1108-1112 ◽  
Author(s):  
D A Morrison ◽  
D T Guy ◽  
R E Day ◽  
G Y F Lee
Keyword(s):  
Intractable Epilepsy ◽  
Rapid Prototype ◽  
Deep Infection ◽  
Prototype Model ◽  
Corpus Callosotomy ◽  
Software Products ◽  
Operative Complications ◽  
Titanium Cranioplasty ◽  
Head Computed Tomography ◽  
Tomography Scan

Custom titanium cranioplasty plates, manufactured by a variety of techniques, have been used to repair a range of cranial defects. The authors present a case where two relatively large, adjacent cranial defects were repaired by custom computer-designed titanium plates. The two plates were designed and fabricated simultaneously using a unique methodology. A 28-year-old woman underwent a corpus callosotomy for medically intractable epilepsy. The surgery was complicated by unexpected haemorrhage which necessitated a second craniotomy. Subsequent deep infection required the removal of bilateral bone flaps, presenting a challenge in the reconstruction of extensive, bilateral but asymmetrical cranial defects. The patient underwent a head computed tomography scan, from which a rapid-prototype model of the skull was produced. The surfaces for the missing cranial segments were generated virtually using a combination of software products and two titanium plates that followed these virtual contours were manufactured to cover the defects. The cranioplasty procedure to implant both titanium cranial plates was performed efficiently with no intra-operative complications. Intra-operatively, an excellent fit was achieved. The careful planning of the plates enhanced the relative ease with which the cranial defects were repaired with an excellent cosmetic outcome.

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