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Effect of Multiwalled Carbon Nanotube Reinforcement on the Opto-Electronic Properties of Polyaniline/c-Si Heterojunction
Abstract<p>In this paper synthesis and extensive investigation of the microstructural and optoelectronic properties of polyaniline (PANI), Multiwalled carbon nanotube (MWCNTs) and MWCNTs reinforced PANI composites is presented. MWCNTs- PANI composites have been deposited by spin coating on silicon wafer substrate. Fourier Transform Infrared Spectroscopy shows no difference between PANI and its composites. However a change in peaks shape and absorption intensity has been observed. A strong effect of the MWCNTs weight percentage on the PANI/MWCNTs composites has been demonstrated. It was find that the thermal stability improved with increasing MWCNTs content. The optical band gap of the PANI thin films has been effectively tuned from 2.38 to 1.78 eV as the MWCNTs content increases from 5 to 15 wt.% The Current–voltage (I–V) characteristics of the fabricated devices shows a significant improvement in current with MWCNTs weight percentage content. It was observed a strong enhancement of composite in the conductivity as well as in the current level. The microscopic images show that the dispersion of MWCNTs into PANI leads to the formation a new conductive pathway.</p>
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Publication Date
Wed Jun 15 2022
Journal Name
Journal Of Legal Sciences
Political rights and their guarantees under the constitution of the Republic of Iraq 2005 (analytical study)

        It guarantees the political rights of individuals to participate in public affairs and political life, but these rights require their protection by the existence of guarantees that guarantee the protection of these rights and ensure that they are actually exercised by individuals. The Constitution of the Republic of Iraq for the year 2005 We dealt with the type of protection granted to these rights, as well as the statement of the types of political rights and the position of the Constitution of the Republic of Iraq for the year 2005 towards them.

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Publication Date
Mon Mar 01 2021
Journal Name
Iraqi Journal Of Physics
Study of the proton halo structure of nuclei 23Al and 27P using the binary cluster model

The neutron, proton, and matter densities of the ground state of the proton-rich 23Al and 27P exotic nuclei were analyzed using the binary cluster model (BCM). Two density parameterizations were used in BCM calculations namely; Gaussian (GS) and harmonic oscillator (HO) parameterizations. According to the calculated results, it found that the BCM gives a good description of the nuclear structure for above proton-rich exotic nuclei. The elastic form factors of the unstable 23Al and 27P exotic nuclei and those of their stable isotopes 27Al and 31P are studied by the plane-wave Born approximation. The main difference between the elastic form factors of unstable nuclei and the

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Publication Date
Sat Jun 15 2019
Journal Name
Ibn Al-haitham Journal For Pure And Applied Sciences
Some Factors Affecting The Stability Of Rutin In Buffered Aqueous Extract Of The Plant Alhagi Graecorum

The flavonoid rutin is the main content of the a queous extract of
the Iraqi plant Alhagi graecorum (family Leguminosae) which was
given to patients with different dental diseases and gave successful
results In this investigation , the amount of rutin is determined and was
found to be 4mg/100gm of the dried plant and it is equivalent to
4mg/500ml (0.8mg/100ml) of the mouthwash formula which was
prepared in this study This study reported for the first time the expiration date of rutin
in the prepared formula and was found to be 2.1 years. It also reported
for the first time that the ionic strength, buffer type and buffer concentration had no effect on the hydrolysis of rutin. Photochemical decomposition of

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Publication Date
Thu Apr 25 2019
Journal Name
Iraqi Journal Of Market Research And Consumer Protection
PATTERN OF INVESTMENT PROJECTS IN THE INVESTMENT ENVIRONMENT: PATTERN OF INVESTMENT PROJECTS IN THE INVESTMENT ENVIRONMENT

That the building of the national economy depends on the extent of the possibility of transition from the rent economy seeking to increase GDP (GDP1), and the tendency to manage projects with external sources of funding, or allow projects with foreign capital is a necessity. The strategic challenges faced by the economy in countries that have experience in investment projects have faced several factors internal and external for a period of time and not a few and the pressures and difficulties and failures have affected in one way or another on the development work in that country. On this basis, the stakeholders have a role to pay attention to the issue of the feasibility of the pattern of foreign investment in the investment environment

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Publication Date
Fri Sep 02 2022
Journal Name
Journal Of Legal Sciences
The legality of the use of cyber-attacks in international conflicts and international responsibility for them

The emergence of the computer and the expansion of the use of the Internet in all areas of life The various negative effects and risks arising from this expansion will appear, as the greater the reliance On these technologies in development, the greater the risks associated with protecting information, and with increasing Global reliance on information and communication technology, especially with regard to the governmental aspect Countries are vulnerable to attacks through cyberspace, as it has become and public facilities, it has also increased This space is vulnerable to violations by network intruders, whether they are countries, organizations or individuals. Hence, it has become necessary to research the legality of using this type

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Publication Date
Wed Sep 21 2022
Journal Name
Journal Of Planner And Development
The Role of Information Technologies in the Management and Sustainability of Land Use in Future Cities

The most important contemporary issues which related to the survey of the influence of communication development technology to land use sustainability. The research aims to explain the changes that happened in the quality & land use activities performance by understanding the transformations due to modern technology and its impact on current uses and its impact on changing functional relationships between those uses to create new combinations or hybrid uses.Research will follow the analytical descriptive approach in presenting the problem of research. Research has several conclusions & recommendations, one of conclusions is the change of the place concept and its relation to changing the concept of land use and its sustai

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Publication Date
Wed Mar 29 2023
Journal Name
Journal Of The College Of Education For Women
A Cognitive Linguistic Study of the Present Simple: An Experimental Study in the University of Baghdad

Some research reports that cognitive grammar (CG) theory has good contributions to teaching English as a foreign language. In this research, the researchers seek to apply this theory and its principles when teaching the simple present tense to Iraqi students who face difficulties in differentiating between the multiple usages of this tense. To achieve this objective, the researchers have conducted an experimental study on a group of 60 Iraqi students in the University of Baghdad, College of Education for Women. Langacker’s (2003) theory has been adopted in the analysis of the cognitive relations to understand the common and different connections of these usages of the simple present. The study has concluded that the cognitive grammar t

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Publication Date
Wed Apr 10 2019
Journal Name
Journal Of The College Of Education For Women
Environmental Impact in the Cultural Output of the Civilizations of Ancient East, Iraq and Eygpt sample

Our research subject (environmental impact in the cultural output of the civilizations of ancient East) the environmental impact on human civilization and how her and adapted to serve in various cultural aspects especially in ancient cultures whether punches or sculptures and other addresses as well as tracing precious stones and raw materials.  It was the environment of the civilizations of Mesopotamia and Egypt and another effective impact in drawing ancient history through human interaction and responsiveness.  The Iraqi environment was marked by poverty and cruelty on the one hand and on the other cultural elements contributed to the civilization in General and research dealing with technical and product sourcing raw materi

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Publication Date
Wed Nov 20 2024
Journal Name
Journal Of Baghdad College Of Dentistry
Evaluation of the cleaning efficiency of the isthmus using different rotary instrumentation techniques (In vitro study)

Background: The aims of the study were to evaluate the unclean/clean root canal surface areas with a histopathological cross section view of the root canal and the isthmus and to evaluate the efficiency of instrumentation to the isthmus using different rotary instrumentation techniques. Materials and Methods:The mesial roots of thirty human mandibular molars were divided into six groups, each group was composed of five roots (10 root canals)which prepared and irrigated as: Group one A: Protaper system to size F2 and hypodermic syringe, Group one B: Protaper system to size F2 and endoactivator system, Group two A:Wave One small then primary file and hypodermic syringe, Group two B:Wave One small then primary file and endoactivator system, Gr

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Publication Date
Tue Jul 01 2008
Journal Name
Journal Of The Faculty Of Medicine Baghdad
Evaluation of cryoprecipitate as part of The quality assurance in the Iraqi National Blood Transfusion Centre

Background:- Cryoprecipitate (CRYO) is the cold- precipitated concentration of factor VIII , it is prepared from fresh frozen plasma (FFP) by rapid freezing within
six hours of collection and thawed slowly between 1 - 6 Cº and removed from the supernatant . The product contain most of F VIII and part of fibrinogen from the
original plasma as well as F XIII Von Willebrand (vWF) and fibronectin 

Aim of the study: -This study is conducted to provide more information about significant contents of cryoprecipitates in regard to factor VIII, fibrinogen, and von
Willebrand factor as part of the quality assurance in blood transfusion centers and to provide competent and efficient therapeutic materials to

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