**Commenced**in January 2007

**Frequency:**Monthly

**Edition:**International

**Paper Count:**4448

# Search results for: gamma function

##### 4448 Performance Analysis of a Hybrid DF-AF Hybrid RF/FSO System under Gamma Gamma Atmospheric Turbulence Channel Using MPPM Modulation

**Authors:**
Hechmi Saidi,
Noureddine Hamdi

**Abstract:**

**Keywords:**
free space optical,
gamma gamma channel,
radio frequency,
decode and forward,
error pointing,
M-ary pulse position modulation,
symbol error rate

##### 4447 Bayesian Estimation under Different Loss Functions Using Gamma Prior for the Case of Exponential Distribution

**Authors:**
Md. Rashidul Hasan,
Atikur Rahman Baizid

**Abstract:**

**Keywords:**
Bayes estimator,
maximum likelihood estimator (MLE),
modified linear exponential (MLINEX) loss function,
Squared Error (SE) loss function,
non-linear exponential (NLINEX) loss function

##### 4446 Performance Analysis of M-Ary Pulse Position Modulation in Multihop Multiple Input Multiple Output-Free Space Optical System over Uncorrelated Gamma-Gamma Atmospheric Turbulence Channels

**Authors:**
Hechmi Saidi,
Noureddine Hamdi

**Abstract:**

**Keywords:**
free space optical,
multiple input multiple output,
M-ary pulse position modulation,
multihop,
decode and forward,
symbol error rate,
gamma-gamma channel

##### 4445 Impact of Weather Conditions on Generalized Frequency Division Multiplexing over Gamma Gamma Channel

**Authors:**
Muhammad Sameer Ahmed,
Piotr Remlein,
Tansal Gucluoglu

**Abstract:**

**Keywords:**
free space optics,
generalized frequency division multiplexing,
weather conditions,
gamma gamma distribution

##### 4444 End-to-End Performance of MPPM in Multihop MIMO-FSO System Over Dependent GG Atmospheric Turbulence Channels

**Authors:**
Hechmi Saidi,
Noureddine Hamdi

**Abstract:**

**Keywords:**
free space optical,
gamma gamma channel,
radio frequency,
decode and forward,
multiple-input multiple-output,
M-ary pulse position modulation,
symbol error rate

##### 4443 Gamma Irradiation Effects on the Magnetic Properties of Hard Ferrites

**Authors:**
F. Abbas Pour Khotbehsara,
B. Salehpour,
A. Kianvash

**Abstract:**

**Keywords:**
gamma ray irradiation,
hard ferrite,
magnetic coefficient,
magnetic material,
radiation dose

##### 4442 Gamma Irradiation Effect on Structural and Optical Properties of Bismuth-Boro-Tellurite Glasses

**Authors:**
Azuraida Amat,
Halimah Mohamed Kamari,
Che Azurahanim Che Abdullah,
Ishak Mansor

**Abstract:**

**Keywords:**
boro-tellurite,
bismuth,
gamma radiation,
optical properties

##### 4441 An Automated Procedure for Estimating the Glomerular Filtration Rate and Determining the Normality or Abnormality of the Kidney Stages Using an Artificial Neural Network

**Authors:**
Hossain A.,
Chowdhury S. I.

**Abstract:**

**Keywords:**
artificial neural network,
glomerular filtration rate,
stages of the kidney,
gamma camera

##### 4440 Parameter Estimation for the Mixture of Generalized Gamma Model

**Authors:**
Wikanda Phaphan

**Abstract:**

**Keywords:**
conjugate gradient method,
quasi-Newton method,
EM-algorithm,
generalized gamma distribution,
length biased generalized gamma distribution,
maximum likelihood method

##### 4439 Effects of Gamma Irradiation on Chemical and Antioxidant Properties of Iranian Native Fresh Barberry Fruit

**Authors:**
Samira Berenji Ardestani,
Hamid Reza Akhavan

**Abstract:**

*Berberis vulgaris*) during refrigerated storage for 40 days were evaluated. The total anthocyanin and total phenolic contents of barberry fruits decreased in a dose-dependent manner immediately after irradiation and after subsequent storage. In general, it is recommended that, according to the effect of gamma radiation on physicochemical, microbial and sensorial characteristics, doses of 1.25-2 kGy could be used.

**Keywords:**
antioxidant property,
barberry fruit,
chemical properties,
gamma irradiation

##### 4438 Design of a Remote Radiation Sensing Module Based on Portable Gamma Spectrometer

**Authors:**
Young Gil Kim,
Hye Min Park,
Chan Jong Park,
Koan Sik Joo

**Abstract:**

**Keywords:**
Ce:GAGG,
gamma-ray,
radio frequency,
silicon photomultiplier

##### 4437 Effect of Gamma Irradiation on Structural and Optical Properties of ZnO/Mesoporous Silica Nanocomposite

**Authors:**
K. Sowri Babu,
P. Srinath,
N. Rajeswara Rao,
K. Venugopal Reddy

**Abstract:**

**Keywords:**
ZnO nanoparticles,
nanocomposites,
mesoporous silica,
photoluminescence

##### 4436 Statistical Analysis of Interferon-γ for the Effectiveness of an Anti-Tuberculous Treatment

**Authors:**
Shishen Xie,
Yingda L. Xie

**Abstract:**

**Keywords:**
data analysis,
interferon gamma release assay,
statistical methods,
tuberculosis infection

##### 4435 Radiative Reactions Analysis at the Range of Astrophysical Energies

**Authors:**
A. Amar

**Abstract:**

^{10}B nuclei has been done in the framework of the optical model and single folding model at the beam energies up to 17 MeV. We could enhance the optical potential parameters using Esis88 Code, as well as SPI GENOA Code. Linear relationship between volume real potential (V

_{0}) and proton energy (E

_{p}) has been obtained. Also, surface imaginary potential W

_{D}is proportional to the proton energy (E

_{p}) in the range 0.400 and 17 MeV. The radiative reaction

^{10}B(p,γ)

^{11}C has been analyzed using potential model. A comparison between

^{10}B(p,γ)

^{11}C and

^{6}Li(p,γ)

^{7}Be has been made. Good agreement has been found between theoretical and experimental results in the whole range of energy. The radiative resonance reaction

^{7}Li(p,γ)

^{8}Be has been studied.

**Keywords:**
elastic scattering of protons on 10B nuclei,
optical potential parameters,
potential model,
radiative reaction

##### 4434 Modification of Electrical and Switching Characteristics of a Non Punch-Through Insulated Gate Bipolar Transistor by Gamma Irradiation

**Authors:**
Hani Baek,
Gwang Min Sun,
Chansun Shin,
Sung Ho Ahn

**Abstract:**

_{2}interface of the IGBT. It was confirmed that this lattice defect acts on the center of the trap and affects the threshold voltage, thereby negatively shifted the threshold voltage according to TID. In addition to the change in the carrier mobility, the conductivity modulation decreases in the n-drift region, indicating a negative influence that the forward voltage drop decreases. The turn-off delay time of the device before irradiation was 212 ns. Those of 2.5, 10, 30, 70 and 100 kRad(Si) were 225, 258, 311, 328, and 350 ns, respectively. The gamma irradiation increased the turn-off delay time of the IGBT by approximately 65%, and the switching characteristics deteriorated.

**Keywords:**
NPT-IGBT,
gamma irradiation,
switching,
turn-off delay time,
recombination,
trap center

##### 4433 Assessing Effects of an Intervention on Bottle-Weaning and Reducing Daily Milk Intake from Bottles in Toddlers Using Two-Part Random Effects Models

**Authors:**
Yungtai Lo

**Abstract:**

**Keywords:**
two-part model,
semi-continuous variable,
truncated normal,
gamma regression,
skew normal,
Pearson residual,
receiver operating characteristic curve

##### 4432 Effect of Gamma Radiation on Bromophenol Blue Dyed Films as Dosimeter

**Authors:**
Priyanka R. Oberoi,
Chandra B. Maurya,
Prakash A. Mahanwar

**Abstract:**

**Keywords:**
bromophenol blue,
dosimeter,
gamma radiation,
polymer

##### 4431 Formation of Protective Silicide-Aluminide Coating on Gamma-TiAl Advanced Material

**Authors:**
S. Nouri

**Abstract:**

_{2}O

_{3}+SiO

_{2}mixed oxide scale along with a continuous, compact and uniform layer of Ti

_{5}Si

_{3}beneath the surface oxide scale can act as an oxygen diffusion barrier during the high temperature oxidation. The other possible mechanisms related to the formation of Si-aluminide coating and oxide scales were also discussed.

**Keywords:**
Gamma-TiAl alloy,
high temperature oxidation,
Si-aluminide coating,
slurry procedure

##### 4430 Gamma Irradiation Effects on the Crystal Structural and Transport Properties of Bi₂Te₃ Thin Films Grown by Thermal Evaporation

**Authors:**
Shoroog Alraddadi

**Abstract:**

**Keywords:**
bismuth telluride,
gamma irradiation,
thin film,
transport properties

##### 4429 Method for Targeting Small Volume in Rat Brainby Gamma Knife and Dosimetric Control: Towards a Standardization

**Authors:**
J. Constanzo,
B. Paquette,
G. Charest,
L. Masson-Côté,
M. Guillot

**Abstract:**

**Keywords:**
brain irradiation,
dosimetry,
gamma knife,
small-animal irradiation,
stereotactic radiosurgery (SRS)

##### 4428 Epilepsy Seizure Prediction by Effective Connectivity Estimation Using Granger Causality and Directed Transfer Function Analysis of Multi-Channel Electroencephalogram

**Authors:**
Mona Hejazi,
Ali Motie Nasrabadi

**Abstract:**

**Keywords:**
effective connectivity,
Granger causality,
directed transfer function,
epilepsy seizure prediction,
EEG

##### 4427 The MCNP Simulation of Prompt Gamma-Ray Neutron Activation Analysis at TRR-1/M1

**Authors:**
S. Sangaroon,
W. Ratanatongchai,
S. Khaweerat,
R. Picha,
J. Channuie

**Abstract:**

**Keywords:**
MCNP simulation,
PGNAA,
Thai research reactor (TRR-1/M1),
radiation shielding

##### 4426 Simulation of Gamma Rays Attenuation Coefficient for Some common Shielding Materials Using Monte Carlo Program

**Authors:**
Cherief Houria,
Fouka Mourad

**Abstract:**

**Keywords:**
gamma photon,
Monte Carlo program,
radiation attenuation,
shielding material,
the linear attenuation coefficient

##### 4425 The High Temperature Damage of DV–2 Turbine Blade Made from Ni–Base Superalloy

**Authors:**
Juraj Belan,
Lenka Hurtalová,
Eva Tillová,
Alan Vaško,
Milan Uhríčik

**Abstract:**

**Keywords:**
alitize layer,
gamma prime phase,
high-temperature degradation,
Ni–base superalloy ŽS6K,
turbine blade

##### 4424 Marginalized Two-Part Joint Models for Generalized Gamma Family of Distributions

**Authors:**
Mohadeseh Shojaei Shahrokhabadi,
Ding-Geng (Din) Chen

**Abstract:**

**Keywords:**
marginalized two-part model,
zero-inflated,
right-skewed,
semi-continuous,
generalized gamma

##### 4423 The Implementation of Secton Method for Finding the Root of Interpolation Function

**Authors:**
Nur Rokhman

**Abstract:**

**Keywords:**
Secton method,
interpolation,
non linear function,
numerical solution

##### 4422 Determination of Natural Gamma Radioactivity in Sand along the Black Sea Coastal Region of Giresun, North Turkey

**Authors:**
A. Karadeniz,
Belgin Kucukomeroglu

**Abstract:**

**Keywords:**
concentration,
radioactivity,
Giresun,
natural gamma radioactivity

##### 4421 Investigating Nanocrystalline CaF2:Tm for Carbon Beam and Gamma Radiation Dosimetry

**Authors:**
Kanika Sharma,
Shaila Bahl,
Birendra Singh,
Pratik Kumar,
S. P. Lochab,
A. Pandey

**Abstract:**

**Keywords:**
gamma radiation,
ion beam,
nanocrystalline,
radiation dosimetry

##### 4420 Application of Gamma Frailty Model in Survival of Liver Cirrhosis Patients

**Authors:**
Elnaz Saeedi,
Jamileh Abolaghasemi,
Mohsen Nasiri Tousi,
Saeedeh Khosravi

**Abstract:**

**Keywords:**
frailty model,
latent variables,
liver cirrhosis,
parametric distribution

##### 4419 Effect of Gamma Irradiation on the Crystalline Structure of Poly(Vinylidene Fluoride)

**Authors:**
Adriana Souza M. Batista,
Cláubia Pereira,
Luiz O. Faria

**Abstract:**

**Keywords:**
differential scanning calorimetry,
gamma irradiation,
PVDF,
X-ray diffraction technique