Preliminary experimental result of aircraft positioning by using ISDB-T delay signal

2015 ◽  
Author(s):  
Junichi Honda ◽  
Takuya Otsuyama
Keyword(s):  
Experimental Result ◽  
Preliminary Experimental Result

Performance Evaluation of Minimum Quantity Lubrication With Exfoliated Graphite Nanoplatelets in Turning Titanium Alloy

2018 ◽  
Author(s):  
Dinh Nguyen ◽  
Pil-Ho Lee ◽  
Yang Guo ◽  
Patrick Kwon ◽  
Kyung-Hee Park
Keyword(s):  
Minimum Quantity Lubrication ◽  
Exfoliated Graphite ◽  
Experimental Result ◽  
Graphite Nanoplatelets ◽  
Crater Wear ◽  
Minimum Quantity ◽  
Preliminary Experimental Result ◽  
Tribological Surfaces ◽  
Exfoliated Graphite Nanoplatelets ◽  
Carbide Inserts

This paper evaluates the performances of dry, minimum quantity lubrication (MQL) and MQL with nanofluid in turning the most common titanium (Ti) alloy, Ti-6Al-4V, in a solution treated and aged (STA) microstructure. In particular, the nanofluid evaluated here is vegetable oil (rapeseed) mixed with small concentrations of exfoliated graphite nanoplatelets (xGnP). The focus of this paper is on turning process because it poses a challenging condition to apply oil droplets directly onto the tribological surfaces of a cutting tool due to the continuous engagement of tool and work material. A series of turning experiments was conducted with uncoated carbide inserts while measuring the cutting forces with the dynamometer under various conditions to determine its effectiveness and optimal MQL condition in turning. The worn inserts are retrieved to measure flank and crater wear using confocal microscopy. This preliminary experimental result shows that the use of MQL and nanofluid is effective in improving the machinability of Ti alloys in turning processes.

Development of a New Vibrator for Elliptical Vibration Texturing

2011 ◽  
Author(s):  
Ping Guo ◽  
Kornel F. Ehmann
Keyword(s):  
Resonant Mode ◽  
Experimental Result ◽  
Design Parameters ◽  
Vibration Modes ◽  
Turning Process ◽  
Vibration Cutting ◽  
Elliptical Vibration ◽  
Preliminary Experimental Result ◽  
Elliptical Vibration Texturing ◽  
Cutting Direction

Inspired by the idea of vibro-mechanical texturing, which adds a tertiary motion to the tool tip in the conventional turning process, and the elliptical vibration cutting process, which adds vibrations both in the cutting direction and feed direction, this paper proposes a new design for an ultrasonic vibrator for the elliptical vibration texturing process. The elliptical locus lies in the plane that is defined by the cutting and the radial directions. The device could be easily adapted for elliptical cutting applications by changing the orientation of the tool tip. The vibrator works in the resonant mode, with in-phase and anti-phase vibration modes at a nearly identical natural frequency. Simulations and experiments have been carried out to study and verify different vibration modes of the system. Different design parameters have been analyzed to control the elliptical trajectory of the tool tip. A set of preliminary experimental result of elliptical vibration texturing is also provided.

scholarly journals Numerical Simulation of Gas-Liquid Two-Phase Flow in a Horizontally Placed Hydrophobic Rectangular Channel (Part 2, Influence of Abrupt Contraction)

2012 ◽  
Vol 31 (4-5) ◽  
pp. 411-413
Author(s):  
Y. Ueda ◽  
T. Nakajima ◽  
T. Ishii ◽  
R. Tsujino ◽  
M. Iguchi
Keyword(s):  
Two Phase Flow ◽  
Rectangular Channel ◽  
Experimental Result ◽  
Inertia Force ◽  
Phase Flow ◽  
Bubble Behavior ◽  
Fluid System ◽  
Two Phase ◽  
Preliminary Experimental Result ◽  
Abrupt Contraction

AbstractThis paper computationally visualizes two-phase flow patterns through a horizontally placed hydrophilic or hydrophobic rectangular channel with an abrupt contraction. The rectangular duct used in this study has a thickness narrower than the Laplace constant so that the surface tension governs the fluid system rather than the inertia force. In particular, the computed bubble behavior at the abrupt contraction seemed to be a similar nature against the preliminary experimental result.

BDD-Based Combinatorial Keyword Query Processing under a Taxonomy Model

2012 ◽  
Vol 3 (4) ◽  
pp. 52-62
Author(s):  
Shin-ichi Minato ◽  
Nicolas Spyratos
Keyword(s):  
Digital Libraries ◽  
Large Scale ◽  
Intelligent System ◽  
Real Life ◽  
Experimental Result ◽  
Easy Access ◽  
Compact Representation ◽  
Keyword Query ◽  
Preliminary Experimental Result ◽  
Efficient Data

Digital libraries are one of the key systems for an IT society, and supporting easy access to them is an important technical issue between a human and an intelligent system. Here the authors consider a publish/subscribe system for digital libraries which continuously evaluates queries over a large repository containing document descriptions. The subscriptions, the query expressions and the document descriptions, all rely on a taxonomy that is a hierarchically organized set of keywords, or terms. The digital library supports insertion, update and removal of a document. Each of these operations is seen as an event that must be notified only to those users whose subscriptions match the document's description. In this chapter, the authors present a novel method of processing such keyword queries. Their method is based on Binary Decision Diagram (BDD), an efficient data structure for manipulating large-scale Boolean functions. The authors compile the given keyword queries into a BDD under a taxonomy model. The number of possible keyword sets can be exponentially large, but the compiled BDD gives a compact representation, and enabling a highly efficient matching process. In addition, the authors' method can deal with any Boolean combination of keywords from the taxonomy, while the previous result considered only a conjunctive keyword set. In this chapter, they describe the basic idea of their new method, and then the authors show their preliminary experimental result applying to a document set with large-scale keyword domain under a real-life taxonomy structure.

scholarly journals Preliminary experimental result on the mean lifetime of the 10.94 MeV state of16O

1969 ◽  
Vol 1 (15) ◽  
pp. 798-798
Author(s):  
I. Filosofo ◽  
E. Fuschini ◽  
C. Maroni ◽  
A. Uguzzoni ◽  
E. Verondini
Keyword(s):  
Experimental Result ◽  
Preliminary Experimental Result ◽  
Mean Lifetime ◽  
The Mean

BDD-Based Combinatorial Keyword Query Processing under a Taxonomy Model

2010 ◽  
pp. 26-39
Author(s):  
Shin-ichi Minato ◽  
Nicolas Spyratos
Keyword(s):  
Digital Libraries ◽  
Large Scale ◽  
Intelligent System ◽  
Real Life ◽  
Experimental Result ◽  
Easy Access ◽  
Compact Representation ◽  
Keyword Query ◽  
Preliminary Experimental Result ◽  
Efficient Data

Digital libraries are one of the key systems for an IT society, and supporting easy access to them is an important technical issue between a human and an intelligent system. Here we consider a publish/subscribe system for digital libraries which continuously evaluates queries over a large repository containing document descriptions. The subscriptions, the query expressions and the document descriptions, all rely on a taxonomy that is a hierarchically organized set of keywords, or terms. The digital library supports insertion, update and removal of a document. Each of these operations is seen as an event that must be notified only to those users whose subscriptions match the document‘s description. In this chapter, the authors present a novel method of processing such keyword queries. Our method is based on Binary Decision Diagram (BDD), an efficient data structure for manipulating large-scale Boolean functions. The authors compile the given keyword queries into a BDD under a taxonomy model. The number of possible keyword sets can be exponentially large, but the compiled BDD gives a compact representation, and enabling a highly efficient matching process. In addition, our method can deal with any Boolean combination of keywords from the taxonomy, while the previous result considered only a conjunctive keyword set. In this chapter, they describe the basic idea of their new method, and then the authors show their preliminary experimental result applying to a document set with large-scale keyword domain under a real-life taxonomy structure.

Using Logic Synthesis and Circuit Reasoning for Equivalence Checking

2011 ◽  
Vol 201-203 ◽  
pp. 836-840
Author(s):  
Quan Run Fan ◽  
Feng Pan ◽  
Xin Dong Duan
Keyword(s):  
Logic Synthesis ◽  
Experimental Result ◽  
Equivalence Checking ◽  
Structure Information ◽  
Preliminary Experimental Result ◽  
Sat Solver

The existing SAT based algorithms combines two circuits into a miter, and then convert the miter into a CNF formula. After that, a SAT solver is invoked to check the satisfiability of the CNF formula. However, when a miter is converted into CNF formula, the structure information of the circuit is lost. Therefore,we are motivated to solve the problem of miter satisfiability using circuit reasoning. We use logic synthesis first to simplify the circuit, and then use a backtracking method to check the satisfiability of the miter. The preliminary experimental result sindicate that our approach is efficient.

Wear Performance Evaluation of Minimum Quantity Lubrication With Exfoliated Graphite Nanoplatelets in Turning Titanium Alloy

2019 ◽  
Vol 141 (8) ◽  
Author(s):  
Dinh Nguyen ◽  
Phi-Ho Lee ◽  
Yang Guo ◽  
Kyung-Hee Park ◽  
Patrick Kwon
Keyword(s):  
Minimum Quantity Lubrication ◽  
Exfoliated Graphite ◽  
Experimental Result ◽  
Graphite Nanoplatelets ◽  
Turning Process ◽  
Minimum Quantity ◽  
Preliminary Experimental Result ◽  
Tribological Surfaces ◽  
Exfoliated Graphite Nanoplatelets ◽  
Carbide Inserts

This paper evaluates the performances of dry, minimum quantity lubrication (MQL), and MQL with nanofluid conditions in turning of the most common titanium (Ti) alloy, Ti-6Al-4 V, in a solution treated and aged (STA) microstructure. In particular, the nanofluid evaluated here is vegetable (rapeseed) oil mixed with small concentrations of exfoliated graphite nanoplatelets (xGnPs). This paper focuses on turning process that imposes a challenging condition to apply the oil or nanofluid droplets directly onto the tribological surfaces of a cutting tool due to the uninterrupted engagement between tool and work material during cutting. A series of turning experiments was conducted with uncoated carbide inserts, while measuring the cutting forces with a dynamometer under the dry, MQL and MQL with nanofluid conditions supplying oil droplets externally from our MQL device. The inserts are retrieved intermittently to measure the progress of flank and crater wear using a confocal microscopy. This preliminary experimental result shows that MQL and in particular MQL with the nanofluid significantly improve the machinability of Ti alloys even in turning process. However, to attain the best performance, the MQL conditions such as nozzle orientation and the concentration of xGnP must be optimized.

Preliminary experimental result on the mean lifetime of the 10.94 MeV state of16O

1969 ◽  
Vol 1 (6) ◽  
pp. 349-351 ◽  
Author(s):  
I. Filosofo ◽  
E. Fuschini ◽  
C. Maroni ◽  
A. Uguzzoni ◽  
E. Verondini
Keyword(s):  
Experimental Result ◽  
Preliminary Experimental Result ◽  
Mean Lifetime ◽  
The Mean

20 DOF Five Fingered Glove Type Haptic Interface - Sensor Glove II -

1997 ◽  
Vol 9 (3) ◽  
pp. 171-176 ◽  
Author(s):  
Toshio Kitada ◽  
◽  
Yasuharu Kunii ◽  
Hideki Hashimoto ◽  
◽  
...  
Keyword(s):  
Virtual Object ◽  
Experimental Result ◽  
Human Hand ◽  
Dynamic Force ◽  
Human Interface ◽  
Preliminary Experimental Result ◽  
Reaction Forces ◽  
Design Characteristics ◽  
And Performance ◽  
The Stability

In this paper, a new haptic human interface device to communicate with a virtual world, which we named Sensor Glove II (SGII), is presented. SGII, which is drawn on the human hand, corresponds to the dexterous manipulation of human fingers and acquires angles and torque of each joint. SGII adds the reaction forces of a virtual object to the fingers. The forces are calculated in the Dynamic Force Simulator we have developed. We outline the design, characteristics and structure of SGII, and display preliminary experimental result to verify the stability and performance of SGII.

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