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Publication Date

Mon Oct 01 2018

Journal Name

Journal Of Educational And Psychological Researches

Volume

15

Issue Number

59

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Psychological Flow and Its Relation to Futuristic Thinking among Postgraduates

Psychological Flow

Its Relation to Futuristic Thinking

Safa’a Hamid Turki

Marwan Yaseen Khudhair

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The research seeks to find the relationship between psychological flow and futuristic thinking among postgraduate students. To this end, the researchers have made up two scales: one scale to measure the psychological flow which consisted of (32) items and the other to measure the futuristic thinking included (39) items which were distributed into three domains. As to collect the required data, the two scales had applied on a sample comprised (200) postgraduate students. The findings revealed that there is a correlation between psychological flow and futuristic thinking. The researcher recommended the coming studies take the relationship between psychological flow and psychological happiness.

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Publication Date

Sun Jul 01 2018

Journal Name

مجلة البحوث التربوية والنفسية

تحليل محتوى كتابي الحاسوب للمرحلة الاعدادية وفقاً للتفكير المنطقي

• تحليل المحتوى ((Analysis of Content • كتابي الحاسوب ((Computer Textbooks • المرحلة الإعدادية (Preparatory Stage ) • التفكير المنطقي Logical Thinking))

Linda Talib

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يهدف هذا البحث إلى تحليل محتوى كتابي الحاسوب للمرحلة الإعدادية في جمهورية العراق وفقاً للتفكير المنطقي، واتبعت الباحثة منهج البحث الوصفي التحليلي، وتم توظيف أداة تحليل المحتوى، التي صُمِّمت وفقاً للعمليات العقلية المتضمنة في التفكير المنطقي بحسب العالم بياجيه ( Piaget )، واعتماد وحدة الفكرة (الصريحة) في عملية التحليل. تبين من نتائج هذا البحث أنَّ نسبة تضمين مهارات التفكير المنطقي في محتوى كتابي الحاسوب للمرحل

Publication Date

Sun Jun 11 2017

Journal Name

Ibn Al-haitham Journal For Pure And Applied Sciences

Artificial Neural Network for TIFF Image Compression

image compression

MultiLayer Perceptron (MLP)

Back-Propagation algorithm

Compress ratio

Mean Square Error (MSE)

Peak signal-to-noise ratio (PSNR)

Huda Dheyauldeen

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The main aim of image compression is to reduce the its size to be able for transforming and storage, therefore many methods appeared to compress the image, one of these methods is "Multilayer Perceptron ". Multilayer Perceptron (MLP) method which is artificial neural network based on the Back-Propagation algorithm for compressing the image. In case this algorithm depends upon the number of neurons in the hidden layer only the above mentioned will not be quite enough to reach the desired results, then we have to take into consideration the standards which the compression process depend on to get the best results. We have trained a group of TIFF images with the size of (256*256) in our research, compressed them by using MLP for each

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Publication Date

Wed May 10 2023

Journal Name

Journal Of Engineering

SDPLL-Based Frequency Estimation of a Sinusoid in Colored Noise

Sinusoidal digital phase-locked loop (SDPLL)

Cramer-Rao bound (CRB)

colored noise

frequency error variance

signal-to-noise ratio (SNR).

Nuha Abdul Sahib

Zainab Hassan

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The problem of frequency estimation of a single sinusoid observed in colored noise is addressed. Our estimator is based on the operation of the sinusoidal digital phase-locked loop (SDPLL) which carries the frequency information in its phase error after the noisy sinusoid has been acquired by the SDPLL. We show by computer simulations that this frequency estimator beats the Cramer-Rao bound (CRB) on the frequency error variance for moderate and high SNRs when the colored noise has a general low-pass filtered (LPF) characteristic, thereby outperforming, in terms of frequency error variance, several existing techniques some of which are, in addition, computationally demanding. Moreover, the present approach generalizes on existing work tha

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Publication Date

Tue Oct 17 2017

Journal Name

Spe/iatmi Asia Pacific Oil & Gas Conference And Exhibition

Retention of Silica Nanoparticles in Limestone Porous Media

Reservoir Characterization

Upstream Oil & Gas

Brine

flow in porous media

porous medium

silica nanoparticle

Iglauer

structural geology

adsorption

Sarmad

Lezorgia. N.

Muhammad

Jitendra S.

Shaobin

Ahmed

Stefan

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Nanofluids (dispersion of nanoparticles in a base fluid) have been suggested as promising agents in subsurface industries including enhanced oil recovery. Nanoparticles can easily pass through small pore throats in reservoirs formations; however, physicochemical interactions between nanoparticles and between nanoparticles and rocks can cause a significant retention of nanoparticles. This study investigated the transport, attach, and retention of silica nanoparticles in core plugs. The hydrophilic silica nanoparticles were injected into limestone core as nanofluid of different nanoparticles size (5 nm, and 20 nm), concentration (0.005 – 0.1 wt% SiO2), and base fluid salinity (0 – 3 wt% NaCl) at different temperatures (23, and 50 °C). D

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Publication Date

Sat Oct 30 2021

Journal Name

Iraqi Journal Of Science

N Sequence Prime Ideals

Prime ascending chain of ideals

Prime with respect to

Length of an ideal

n-sequence prime ideal

n-sequence quasi prime ideal

Hemin A.

Parween A.

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In this paper, the concepts of -sequence prime ideal and -sequence quasi prime ideal are introduced. Some properties of such ideals are investigated. The relations between -sequence prime ideal and each of primary ideal, -prime ideal, quasi prime ideal, strongly irreducible ideal, and closed ideal, are studied. Also, the ideals of a principal ideal domain are classified into quasi prime ideals and -sequence quasi prime ideals.

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Publication Date

Tue Mar 01 2022

Journal Name

Journal Of Engineering

A Impact of High Voltage Direct Current Link on Transmission Line in Kurdistan Power System

Load Flow Analysis (LFA)

High Voltage Direct Current (HVDC) Link

active Power

Reactive Power

High Voltage Alternating Current (HVAC)

ETAP.

Truska K. Mohammed

Zozan

Shatha Y.

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Kurdistan power system is expanded along years ago. The electrical power is transmitted through long transmission lines. The main problem of transmission lines is active and reactive power losses. It is important to solve this issue, unless, the most of electrical energy will lost over transmission system. In this study, High Voltage Direct Current links/bipolar connection were connected in a power system to reduce the power losses. The 132kV, 50 Hz, 36 buses Kurdistan power system is used as a study case. The load flow analysis was implemented by using ETAP.16 program in which Newton-Raphson method for three cases. The results show that the losses are reduced after inserted HVDC links.

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Publication Date

Sun Jan 30 2022

Journal Name

Iraqi Journal Of Science

A certain Subclass of Meromorphically Multivalent Q-Starlike Functions Involving Higher-Order Q-Derivatives

Multivalent functions

Meromorphically starlike functions

q-derivative(or q-difference) operator

Distortion theorems

Radius of q-starlikeness

close-to-convexity

convexity

Hadamard product

Mustafa I.

Muna H.

Buthyna Najad

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The authors introduced and addressed several new subclasses of the family of meromorphically multivalent -star-like functions in the punctured unit disk in this study, which makes use of several higher order -derivatives. Many fascinating properties and characteristics are extracted systematically for each of these newly identified function classes. Distortion theorems and radius problems are among these characteristics and functions. A number of coefficient inequalities for functions belonging to the subclasses are studied, and discussed, as well as a suitable condition for them is set. The numerous results are presented in this study and the previous works on this

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Publication Date

Mon Nov 01 2010

Journal Name

Al-nahrain Journal Of Science

Chemical Elements Diffusion in the Solar Interior

The standard solar model and equation of state have been used to study relative diffusion of Hydrogen and Helium in the present time for solar interior

as a function of distance and depth from the center of the star. The effects of temperature and density on diffusion velocity for these chemical elements have been explaned. It is found that heat flow which is arising from these reactions leads to an increase in helium diffusion velocity

while the temperature and density leading to a decrease in Hydrogen diffusion velocity. This means that Hydrogen behaves inversely with that for helium does through these reactions. Accordingly

diffusion percentages for Hydrogen

Helium and other Heavy Elements could be determined for the main sequence stars and white dwarf stars.

H.

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Publication Date

Sat Oct 01 2016

Journal Name

Journal Of Theoretical And Applied Information Technology

Factors affecting global virtual teams’ performance in software projects

Today the trend is to perform software development work via distributed geographical area among team

individual or even as an organization. However

due to the global market and international presence of many companies

there is a need to implement a global virtual teams. The global virtual team members are gradually engaged in globalized business environments across space

time and organizational boundaries via information and communication technologies. A global virtual team relies on communication

collaboration

and information exchange are the most important criteria in global virtual teams’ operations. The purpose of this paper is to answer two research questions. The first research question is to identify the factors affecting global virtual teams’ performance. A systematic literature review was conducted to answer the first research question. The second research question is on what the rank of the factor affecting the global virtual teams’ performance according to their level of effect on global virtual teams’ performance. Online survey was conducted within 103 developers and IT managers from eight IT companies to answer the second research question. The Statistical Package for Social Science (SPSS 22) was used to analyze the collected data. In this study

we investigated factors that affect global virtual teams’ performance

factors considered include cultural differences

language problems

time-zone differences

team size

technical problems

lack of trust

lack of sufficient training

and ICT problems. Also the findings indicated that lack of sufficient training is the highest level of effect on global virtual teams’ performance. On the other hand

Ali Yahya Gheni

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Publication Date

Mon Apr 20 2020

Journal Name

Ibn Al-haitham Journal For Pure And Applied Sciences

On SAH â€“ Ideal of BH â€“ Algebra

BH â€“ algebra

SAH â€“ ideal of BH â€“ algebra

closed SAH â€“ ideal with respect to an element of BH â€“ algebra

(SAH) Ì… â€“ideal .

Alaa Saleh

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The aim of this investigation is to present the idea of SAH â€“ ideal , closed SAH â€“ ideal and closed SAH â€“ ideal with respect to an element , and s- of BH â€“ algebra .

We detail and show theorems which regulate the relationship between these ideas and provide some examples in BH â€“ algebra .

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