**Commenced**in January 2007

**Frequency:**Monthly

**Edition:**International

**Paper Count:**2221

# Search results for: true boiling point curve.

##### 2221 Comparison of the Distillation Curve Obtained Experimentally with the Curve Extrapolated by a Commercial Simulator

**Authors:**
Lívia B. Meirelles,
Erika C. A. N. Chrisman,
Flávia B. de Andrade,
Lilian C. M. de Oliveira

**Abstract:**

**Keywords:**
Distillation curve,
petroleum distillation,
simulation,
true boiling point curve.

##### 2220 Efficient Hardware Implementation of an Elliptic Curve Cryptographic Processor Over GF (2 163)

**Authors:**
Massoud Masoumi,
Hosseyn Mahdizadeh

**Abstract:**

A new and highly efficient architecture for elliptic curve scalar point multiplication which is optimized for a binary field recommended by NIST and is well-suited for elliptic curve cryptographic (ECC) applications is presented. To achieve the maximum architectural and timing improvements we have reorganized and reordered the critical path of the Lopez-Dahab scalar point multiplication architecture such that logic structures are implemented in parallel and operations in the critical path are diverted to noncritical paths. With G=41, the proposed design is capable of performing a field multiplication over the extension field with degree 163 in 11.92 s with the maximum achievable frequency of 251 MHz on Xilinx Virtex-4 (XC4VLX200) while 22% of the chip area is occupied, where G is the digit size of the underlying digit-serial finite field multiplier.

**Keywords:**
Elliptic curve cryptography,
FPGA implementation,
scalar point multiplication.

##### 2219 The Distance between a Point and a Bezier Curveon a Bezier Surface

**Authors:**
Wen-Haw Chen,
Sheng-Gwo Chen

**Abstract:**

**Keywords:**
Geodesic-like curve,
distance,
projection,
Bezier.

##### 2218 On-line Lao Handwritten Recognition with Proportional Invariant Feature

**Authors:**
Khampheth Bounnady,
Boontee Kruatrachue,
Somkiat Wangsiripitak

**Abstract:**

This paper proposed high level feature for online Lao handwritten recognition. This feature must be high level enough so that the feature is not change when characters are written by different persons at different speed and different proportion (shorter or longer stroke, head, tail, loop, curve). In this high level feature, a character is divided in to sequence of curve segments where a segment start where curve reverse rotation (counter clockwise and clockwise). In each segment, following features are gathered cumulative change in direction of curve (- for clockwise), cumulative curve length, cumulative length of left to right, right to left, top to bottom and bottom to top ( cumulative change in X and Y axis of segment). This feature is simple yet robust for high accuracy recognition. The feature can be gather from parsing the original time sampling sequence X, Y point of the pen location without re-sampling. We also experiment on other segmentation point such as the maximum curvature point which was widely used by other researcher. Experiments results show that the recognition rates are at 94.62% in comparing to using maximum curvature point 75.07%. This is due to a lot of variations of turning points in handwritten.

**Keywords:**
Handwritten feature,
chain code,
Lao handwritten recognition.

##### 2217 The Applications of Quantum Mechanics Simulation for Solvent Selection in Chemicals Separation

**Authors:**
Attapong T.,
Hong-Ming Ku,
Nakarin M.,
Narin L.,
Alisa L,
Jirut W.

**Abstract:**

**Keywords:**
Extractive distillation,
Interaction force,
Quamtum mechanic,
Relative volatility,
Solvent extraction.

##### 2216 Approximating Maximum Speed on Road from Curvature Information of Bezier Curve

**Authors:**
M. Y. Misro,
A. Ramli,
J. M. Ali

**Abstract:**

**Keywords:**
Speed estimation,
path constraints,
reference
trajectory,
Bezier curve.

##### 2215 The Control Vector Scheme for Design of Planar Primitive PH curves

**Authors:**
Ching-Shoei Chiang,
Sheng-Hsin Tsai,
James Chen

**Abstract:**

**Keywords:**
PH curve,
hodograph,
Bézier curve.

##### 2214 Dynamic Voltage Stability Estimation using Particle Filter

**Authors:**
Osea Zebua,
Norikazu Ikoma,
Hiroshi Maeda

**Abstract:**

**Keywords:**
normalized PV curve,
optimal filtering method particle filter,
voltage stability.

##### 2213 ROC Analysis of PVC Detection Algorithm using ECG and Vector-ECG Charateristics

**Authors:**
J. S. Nah,
A. Y. Jeon,
J. H. Ro,
G. R. Jeon

**Abstract:**

**Keywords:**
Vectorcardiogram (VCG),
Premature Ventricular
contraction (PVC),
ROC (receiver operating characteristic) curve,
ECG

##### 2212 Solving 94-bit ECDLP with 70 Computers in Parallel

**Authors:**
Shunsuke Miyoshi,
Yasuyuki Nogami,
Takuya Kusaka,
Nariyoshi Yamai

**Abstract:**

**Keywords:**
Pollard’s rho method,
BN curve,
Montgomery
multiplication.

##### 2211 Influence of Artificial Roughness on Heat Transfer in the Rotating Flow

**Authors:**
T. Magrakvelidze,
N. Bantsadze,
N. Lekveishvili,
Kh. Lomidze

**Abstract:**

**Keywords:**
boiling,
heat transfer,
roughness.

##### 2210 Single Spectrum End Point Predict of BOF with SVM

**Authors:**
Ling-fei Xu,
Qi Zhao,
Yan-ru Chen,
Mu-chun Zhou,
Meng Zhang,
Shi-xue Xu

**Abstract:**

SVM ( Support Vector Machine ) is a new method in the artificial neural network ( ANN ). In the steel making, how to use computer to predict the end point of BOF accuracy is a great problem. A lot of method and theory have been claimed, but most of the results is not satisfied. Now the hot topic in the BOF end point predicting is to use optical way the predict the end point in the BOF. And we found that there exist some regular in the characteristic curve of the flame from the mouse of pudding. And we can use SVM to predict end point of the BOF, just single spectrum intensity should be required as the input parameter. Moreover, its compatibility for the input space is better than the BP network.

**Keywords:**
SVM,
predict,
BOF,
single spectrum intensity.

##### 2209 Cost and Productivity Experiences of Pakistan with Aggregate Learning Curve

**Authors:**
Jamshaid ur Rehman,
Shahida Wizarat

**Abstract:**

**Keywords:**
Cost,
Inflection Point,
Learning Curve,
Minima,
Maxima,
and Productivity

##### 2208 Effect of Nanofluids on the Saturated Pool Film Boiling

**Authors:**
Dogan Ciloglu,
Abdurrahim Bolukbasi,
Kemal Comakli

**Abstract:**

**Keywords:**
Heat transfer,
nanofluid,
nanoparticles,
pool film
boiling

##### 2207 Mobile Robot Path Planning Utilizing Probability Recursive Function

**Authors:**
Ethar H. Khalil,
Bahaa I. Kazem

**Abstract:**

**Keywords:**
Mobile robot,
path planning,
Bezier curve.

##### 2206 Direct Numerical Simulation of Subcooled Nucleate Pool Boiling

**Authors:**
Sreeyuth Lal,
Yohei Sato,
Bojan Niceno

**Abstract:**

With the long-term objective of Critical Heat Flux (CHF) prediction, a Direct Numerical Simulation (DNS) framework for simulation of subcooled and saturated nucleate pool boiling is developed. One case of saturated, and three cases of subcooled boiling at different subcooling levels are simulated. Grid refinement study is also reported. Both boiling and condensation phenomena can be computed simultaneously in the proposed numerical framework. Computed bubble detachment diameters of the saturated nucleate pool boiling cases agree well with the experiment. The flow structures around the growing bubble are presented and the accompanying physics is described. The relation between heat flux evolution from the heated wall and the bubble growth is studied, along with investigations of temperature distribution and flow field evolutions.

**Keywords:**
CFD,
interface tracking method,
phase change model,
subcooled nucleate pool boiling.

##### 2205 Electric Field Effect on the Rise of Single Bubbles during Boiling

**Authors:**
N. Masoudnia,
M. Fatahi

**Abstract:**

An experimental study of saturated pool boiling on a single artificial nucleation site without and with the application of an electric field on the boiling surface has been conducted. N-pentane is boiling on a copper surface and is recorded with a high speed camera providing high quality pictures and movies. The accuracy of the visualization allowed establishing an experimental bubble growth law from a large number of experiments. This law shows that the evaporation rate is decreasing during the bubble growth, and underlines the importance of liquid motion induced by the preceding bubble. Bubble rise is therefore studied: once detached, bubbles accelerate vertically until reaching a maximum velocity in good agreement with a correlation from literature. The bubbles then turn to another direction. The effect of applying an electric field on the boiling surface in finally studied. In addition to changes of the bubble shape, changes are also shown in the liquid plume and the convective structures above the surface. Lower maximum rising velocities were measured in the presence of electric fields, especially with a negative polarity.

**Keywords:**
Single bubbles,
electric field,
boiling,
effect.

##### 2204 Evaluation of Exerting Force on the Heating Surface Due to Bubble Ebullition in Subcooled Flow Boiling

**Authors:**
M. R. Nematollahi

**Abstract:**

**Keywords:**
Subcooled boiling,
vibration mechanism,
bubble
behavior.

##### 2203 Molecular Dynamics Simulation of Annular Flow Boiling in a Microchannel with 70000 Atoms

**Authors:**
D.Toghraie,
A.R.Azimian

**Abstract:**

**Keywords:**
Lennard-Jones Potential,
Molecular DynamicsSimulation,
Periodic Boundary Conditions (PBC),
Non-EquilibriumMolecular Dynamics (NEMD),
Annular Flow Boiling

##### 2202 Unsteady Reversed Stagnation-Point Flow over a Flat Plate

**Authors:**
Vai Kuong Sin,
Chon Kit Chio

**Abstract:**

**Keywords:**
reversed stagnation-point flow,
similarity solutions,
analytical solution,
numerical solution

##### 2201 Parametric Transition as a Spiral Curve and Its Application in Spur Gear Tooth with FEA

**Authors:**
S. H. Yahaya,
J. M. Ali,
T.A. Abdullah

**Abstract:**

**Keywords:**
Bézier-like cubic function,
Curvature continuity,
Cshapedtransition curve,
Spur gear tooth.

##### 2200 Effect of Processing on Sensory Characteristics and Chemical Composition of Cottonseed (Gossypium hirsutum) and Its Extract

**Authors:**
Olufunke O. Ezekiel,
Abiodun A. Oriku

**Abstract:**

The seeds of cotton (Gossypium hirsutum) fall among the lesser known oil seeds. Cottonseeds are not normally consumed in their natural state due to their gossypol content, an antinutrient. The effect of processing on the sensory characteristics and chemical composition of cottonseed and its extract was studied by subjecting the cottonseed extract to heat treatment (boiling) and the cottonseed to fermentation. The cottonseed extract was boiled using the open pot and the pressure pot for 30 minutes respectively. The fermentation of the cottonseed was carried out for 6 days with samples withdrawn at intervals of 2 days. The extract and fermented samples were subjected to chemical analysis and sensory evaluated for colour, aroma, taste, mouth feel, appearance and overallacceptability. The open pot sample was more preferred. Fermentation for 6 days resulted into a significant reduction in gossypol level of the cottonseed; however, sample fermented for 2 days was most preferred.

**Keywords:**
Cottonseed,
boiling,
extract,
fermentation,
True
protein.

##### 2199 Determination the Curve Number Catchment by Using GIS and Remote Sensing

**Authors:**
Abouzar Nasiri,
Hamid Alipur

**Abstract:**

In recent years, geographic information systems (GIS) and remote sensing using has increased to estimate runoff catchment. In this research, runoff curve number maps for captive catchment of Tehran by helping GIS and also remote sensing which based on factors such as vegetation, lands using, group of soil hydrology and hydrological conditions were obtained. Runoff curve numbers map was obtained by combining these maps in ARC GIS and SCS table. To evaluate the accuracy of the results, the maximum flow rate of flood which was obtained from curve numbers, was compared with the measured maximum flood rate at the watershed outlet and correctness of curve numbers were approved.

**Keywords:**
Curve number,
GIS,
Remote sensing,
Runoff.

##### 2198 Extended Cubic B-spline Interpolation Method Applied to Linear Two-Point Boundary Value Problems

**Authors:**
Nur Nadiah Abd Hamid,
Ahmad Abd. Majid,
Ahmad Izani Md. Ismail

**Abstract:**

Linear two-point boundary value problem of order two is solved using extended cubic B-spline interpolation method. There is one free parameters, λ, that control the tension of the solution curve. For some λ, this method produced better results than cubic B-spline interpolation method.

**Keywords:**
two-point boundary value problem,
B-spline,
extendedcubic B-spline.

##### 2197 Nonlinear Thermal Hydraulic Model to Analyze Parallel Channel Density Wave Instabilities in Natural Circulation Boiling Water Reactor with Asymmetric Power Distribution

**Authors:**
Sachin Kumar,
Vivek Tiwari,
Goutam Dutta

**Abstract:**

**Keywords:**
Asymmetric power distribution,
Density wave oscillations,
In-phase and out-of-phase modes of instabilities,
Natural circulation boiling water reactor

##### 2196 Roughness Effects on Nucleate Pool Boiling of R-113 on Horizontal Circular Copper Surfaces

**Authors:**
R. Hosseini,
A. Gholaminejad,
H. Jahandar

**Abstract:**

**Keywords:**
Nucleate Boiling,
Pool Boiling,
R113,
SurfaceRoughness

##### 2195 An Implicit Region-Based Deformable Model with Local Segmentation Applied to Weld Defects Extraction

**Authors:**
Y. Boutiche,
N. Ramou,
M. Ben Gharsallah

**Abstract:**

This paper is devoted to present and discuss a model that allows a local segmentation by using statistical information of a given image. It is based on Chan-Vese model, curve evolution, partial differential equations and binary level sets method. The proposed model uses the piecewise constant approximation of Chan-Vese model to compute Signed Pressure Force (SPF) function, this one attracts the curve to the true object(s)-s boundaries. The implemented model is used to extract weld defects from weld radiographic images in the aim to calculate the perimeter and surfaces of those weld defects; encouraged resultants are obtained on synthetic and real radiographic images.

**Keywords:**
Active contour,
Chan-Vese Model,
local
segmentation,
weld radiographic images.

##### 2194 Accurate Dimensional Measurement of 3D Round Holes Based on Stereo Vision

**Authors:**
Zhiguo Ren,
Lilong Cai

**Abstract:**

This paper present an effective method to accurately reconstruct and measure the 3D curve edges of small industrial parts based on stereo vision. To effectively fit the curve of the measured parts using a series of line segments in the images, a strategy from coarse to fine is employed based on multi-scale curve fitting. After reconstructing the 3D curve of a hole through a curved surface, its axis is adjusted so that it is parallel to the Z axis with least squares error and the dimensions of the hole can be calculated on the XY plane easily. Experimental results show that the presented method can accurately measure the dimensions of round holes through a curved surface.

**Keywords:**
Stereo Vision,
3D Round Hole Measurement,
Curve Fitting,
3D Curve Reconstruction,
Least Squares Error.

##### 2193 Generating Arabic Fonts Using Rational Cubic Ball Functions

**Authors:**
Fakharuddin Ibrahim,
Jamaludin Md. Ali,
Ahmad Ramli

**Abstract:**

^{1}continuity. The conditions considered are known as the G

^{1}Hermite condition. A simple application of the proposed method is to generate an Arabic font satisfying the required continuity.

**Keywords:**
Continuity,
data interpolation,
Hermite condition,
rational Ball curve.

##### 2192 Application of Neural Networks to Predict Changing the Diameters of Bubbles in Pool Boiling Distilled Water

**Authors:**
V. Nikkhah Rashidabad,
M. Manteghian,
M. Masoumi,
S. Mousavian,
D. Ashouri

**Abstract:**

In this research, the capability of neural networks in modeling and learning complicated and nonlinear relations has been used to develop a model for the prediction of changes in the diameter of bubbles in pool boiling distilled water. The input parameters used in the development of this network include element temperature, heat flux, and retention time of bubbles. The test data obtained from the experiment of the pool boiling of distilled water, and the measurement of the bubbles form on the cylindrical element. The model was developed based on training algorithm, which is typologically of back-propagation type. Considering the correlation coefficient obtained from this model is 0.9633. This shows that this model can be trusted for the simulation and modeling of the size of bubble and thermal transfer of boiling.

**Keywords:**
Bubble Diameter,
Heat Flux,
Neural Network,
Training Algorithm.