2,104 research outputs found

    Design and Implementation of an Electrical Lift Controlled using PLC

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    This paper represents the possibility of controlling an electrical elevator model using PLC and studying some parameters to ensure its work, this model have been designed and constructed to perform a completed elevator work in an automating technique according to its programming and controlling method that making the connecting much more easier and safer than real relays and complicated wiring method. As well as the small DC motor drive (gear box) electrical motor that used  to drive the elevator cabinet which made the transition from floor to floor much smoother and much efficient than the traditional elevators

    Active involvement of students in co-curriculum (sports) versus generic skills

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    The active involvement of students in sports activities is viewed from different levels of achievement beginning with the national representation of the residential colleges, faculties, and universities in prestigious sporting events at international levels. The skills that are developed through extra-curricular activities are generic skills. The involvement of students in co-curricular activities can help to shape their generic skills, thus leading to self-promotion in the workplace. Therefore, the purpose of this research was to examine the enhancement of generic skills among engineering and technical students of UTHM who are actively involved in co-curricular activities (sports). This study will focus on identifying the factors of involvement, the level of application among students, and the perceptions of the students through their active involvement in extra-curricular activities (sports). A survey was conducted using a quantitative approach. A general questionnaire, which was designed to fulfil the objectives and to answer the research questions for this study, was distributed to 213 engineering and technical student athletes of UTHM who are actively involved in co-curricular activities (sports). It was found that the engineering and technical student athletes of UTHM agreed that their active involvement in extra-curricular activities (sports) was due to interpersonal, intrapersonal and structural factors. The results showed that out of seven generic skills, three constructs of generic skills, namely communication, teamwork and management, demonstrate a high level of application through active involvement in extra-curricular activities (sports). These findings may also help the university to focus on the development of generic skills in engineering and technical students through co-curricular activities (sports) in addition to producing athletes who are able to create a name for the university at national or international level

    Evaluation the Phenotypic and Genotypic Variations for Clinical Isolates of Arthroderma otae Complex

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    الفطريات M. canis و M. audouiniiو M. ferrugineumثلاثة انواع فطرية تعود لمعقد النوع Arthroderma otae وتكون متقاربة جدا مظهريا ووراثيا. التشخيص التقليدي والذي يتضمن كل من الصفات المظهرية والكيميائية الحياتية عادة ما تنتج نتائج غير واضحة مقارنة مع التشخيص الوراثي بواسطة استخدام تقنيات جزيئية حديثة تعطي نتائج اكثر وضوحا. تضمنت الدراسة الحالية اجراء تتابع للقواعد الناتروجينية لمنطقة ITS region في  الدنا الرايبوسومي (rDNA) لعدد من عزلات الفطر Microsporum spp وتحليل الشجرة التطورية لهذه المنطقة وقد اظهرت النتائج ثلاث مجاميع عنقودية لعزلات الفطر A. otae وهو الطور الجنسي للفطر Microsporum spp. تمت مطابقة تتابع العزلات قيد الدراسة مع تتابع العينات المرجعية لقاعدة البيانات في البنك الجيني (GenBank Database) وقد اظهرت النتائج عدد من مناطق التطفير متمثلة اما بفقدان التواصل (Miss matching) او الفجوات الوراثية (Genetic gaps). وبواسطة استخدام برنامج Mega 6 software وعرض المناطق المحافظة بالوان مختلفة لكل قاعدة نايترجينية تحت مستوى 50% لعزلات الفطر A. otae  فقد اظهرت نتائج التطابق في الوان القواعد النايتروجينية ان جميع العزلات تنتمي الى نفس النوع في الطور الجنسي.canis , M. audouinii and M. ferrugineum are three species ofArthroderma otae com- plex, which morphologically and genetically closely related. Conventional identification of phenotypic and biochemical characteristics are usually yielding unclear results. Geno- typic identification by using modern technique which is yielding more accurate results. In this study, ITS region of rDNA was sequenced and phylogenetic tree analysis for Mi- crosporum spp. were observed three clusters of A. otae isolates. When sequencing identi- fies with the reference strains sequence of GenBank Database detected several mutations in multiple locus either by miss matching or genetic gaps. By using Mega 6 software and display toggle conserved sites at the 50% level with different colors of A. otae isolates showed identification of the colors in the nitrogenous bases alignment belong to the same species of the telomorph

    Generalization of Jordan-Lie of Finite Dimensional Associative Algebras

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    We generalize Baranov and Shlaka's results about bar-minimal Jordan-Lie and regular inner ideals of finite dimensional associative algebras. Let A be a finite dimensional 1-perfect associative algebras A over an algebraically closed field \mathbb{F} of characteristic p\ge0 and let A' be a subalgebra of A. We prove that for any bar-minimal Jordan-Lie inner ideal B' a A', there is a bar-minimal Jordan-Lie inner ideal of A that contains B' and if B' is regular, then is a regular inner ideal of A that contains B'. We also prove that for any strict orthogonal pair (e',f') in A', there is a strict orthogonal idempotent pair (e,f) in A such that e'A'f'\subseteq eAfComment: arXiv admin note: text overlap with arXiv:1609.0519

    Direct torque control of IM using PID controller

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    Direct torque control "DTC" technique is one of a high performance control system of an AC motor drive, which was proposed after the vector oriented control scheme during the resent 25 years. It has been developed rapidly for its concise system scheme, transient and dynamic performance. The DTC mechanism consists of voltage vector selection table, two hysteresis comparators and two estimators one for stator flux and another for electromagnetic torque. DTC is directly control torque and flux by using Voltage Source Inverter VSI, space vector and stator flux orientation and indirect speed regulated. A several control techniques can be used for improving the torque and flux performance. In this paper, the DTC with Proportional-Integral-Derivative (PID) controller used to improve the starting and dynamic performance of asynchronous motor AM, which gives good torque and flux response, best speed control and also minimize the unacceptable torque ripple. The mathematical model of DTC with PID controller of 3-phase induction motor IM are simulated under Matlab-Simulink. Therefore, the DTC based on PID controller has good performance of IM compared to classical DTC for starting, running state and also during change in load

    Effect of Sn Addition on Phase Transformation Behavior of Equiatomic Ni-Ti Shape Memory Alloy

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    تمت دراسة تأثير Sn على سلوك التحول الطوري والبنية المجهرية والصلادة  الدقيقة لسبائك NiTi المتذكرة الشكل. تم إنتاج سبيكة نيكل تيتانيوم وسبيكة نيكل تيتانيوم قصدير بطريقة الصهر الحثي في الفراغ بتركيب  (Ni 50 % ،  50% Ti) و ( 48% Ni ، 50%Ti ، 2 % Sn). تم فحص خصائص كلتا السبيكتين باستخدام الماسح الحراري التفاضلي وتحليل حيود الأشعة السينية المجهر الالكتروني الماسح والمجهر الضوئي واختبار صلادة فيكر الدقيقة . أظهرت النتائج أن إضافة عنصر Sn تؤدي إلى انخفاض درجات حرارة التحول الطوري بشكل واضح. تحتوي كلتا عينات سبيكة على طور الاساس (NiTi) وطور Ti2Ni)) الثانوي ، ولكن محتوى طور Ti2Ni انخفض مع إضافة Sn وهذا احد الأسباب التي تؤدي إلى تقليل الصلادة الدقيقة للسبائك مع أضافة عنصر Sn بطريقة ملحوظة ، انخفضت الصلادة الدقيقة من 238.74 لسبيكة NiTi المتساوية التركيب إلى 202 لسبيكة NiTiSn بعد المعاملة الحرارية.Sn effect on the phase transformation behavior, microstructure, and micro hardness of equiatomic Ni-Ti shape memory alloy was studied. NiTi and NiTiSn alloys were produced using vacuum induction melting process with alloys composition (50% at. Ni, 50% at.Ti) and (Ni 48% at., Ti 50% at., Sn 2% at.). The characteristics of both alloys were investigated by utilizing Differential Scanning Calorimetry, X- ray Diffraction Analysis, Scanning Electron Microscope, optical microscope and vicker's micro hardness test. The results showed that adding Sn element leads to decrease the phase transformation temperatures evidently. Both alloy samples contain NiTi matrix phase and Ti2Ni secondary phase, but the Ti2Ni phase content decreases with Sn addition and this is one of the reasons that leads to decrease the micro hardness of alloy with adding Sn element in a noticeable manner. The micro hardness decreases from 238.74 for NiTi equiatomic alloy to 202 for NiTiSn alloy after heat treatment

    Hybrid intelligent approach for network intrusion detection

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    In recent years, computer networks are broadly used, and they have become very complicated. A lot of sensitive information passes through various kinds of computer devices, ranging from minicomputers to servers and mobile devices. These occurring changes have led to draw the conclusion that the number of attacks on important information over the network systems is increasing with every year. Intrusion is the main threat to the network. It is defined as a series of activities aimed for exposing the security of network systems in terms of confidentiality, integrity and availability, as a result; intrusion detection is extremely important as a part of the defense. Hence, there must be substantial improvement in network intrusion detection techniques and systems. Due to the prevailing limitations of finding novel attacks, high false detection, and accuracy in previous intrusion detection approaches, this study has proposed a hybrid intelligent approach for network intrusion detection based on k-means clustering algorithm and support vector machine classification algorithm. The aim of this study is to reduce the rate of false alarm and also to improve the detection rate, comparing with the existing intrusion detection approaches. In the present study, NSL-KDD intrusion dataset has been used for training and testing the proposed approach. In order to improve classification performance, some steps have been taken beforehand. The first one is about unifying the types and filtering the dataset by data transformation. Then, a features selection algorithm is applied to remove irrelevant and noisy features for the purpose of intrusion. Feature selection has decreased the features from 41 to 21 features for intrusion detection and later normalization method is employed to perform and reduce the differences among the data. Clustering is the last step of processing before classification has been performed, using k-means algorithm. Under the purpose of classification, support vector machine have been used. After training and testing the proposed hybrid intelligent approach, the results of performance evaluation have shown that the proposed network intrusion detection has achieved high accuracy and low false detection rate. The accuracy is 96.025 percent and the false alarm is 3.715 percent

    مبدأ المساواة في الإسلام دراسة تحليلية في مفاهيم التًميز والتًمييز: THE PRINCIPLE OF EQUALITY IN ISLAM IS AN ANALYTICAL STUDY OF THE CONCEPTS OF DIFFERENTIATION AND RACISM

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    هدفت الدراسة إلى بيان مبدأ المساواة في الإسلام من خلال عدة أطر مهمة، والتي تمثل المفاهيم المعرفية والعملية لمبدأ المساوة بين البشر، ومن خلال تلك المفاهيم، نستطيع أن نتوصل إلى حقائق مهمة تتبين أن المساواة الإنسانية ليست بالضرورة أن تعني أن يتساوى الناس في كل أمورهم الحياتية الاجتماعية والسياسية والاقتصادية وما شابه ذلك، -وهو ما تعنيه الدراسة بإمكانية التمايز في هذه الجوانب- وإنما يقصد بمبدأ المساواة في الإسلام أن الناس سواسية في الحقوق والواجبات، وهو ما يمكن أن نسميه وجوب المساواة وامتناع التّمييز العنصري خاصة في هذا الجانب المحوري "الحقوق والواجبات". وهذا هو المنظور الإسلامي لمبدأ المساواة في هذا الجانب الحيوي. كما أن الإسلام أتاح وحث على التنافس والتفاضل بين الناس في شتى المجالات الحياتية العلمية والعملية، ولذلك فالناس متفاضلون في المنازل حسب الجهود التي يبذلونها في تطوير ذواتهم، وتقديم المنافع لمجتمعاتهم، وهذا التفاضل لا يمس عنصر المساواة في الحقوق والواجبات في المنظور الإسلامي، ولا يؤدي إلى التّمييز العنصري. الجدير ذكره في هذا الصدد أن هناك إشكالية في ازدواج المعايير المعاصرة لفهم حقيقة وفلسفة المساواة الإنسانية، ولذلك فإن مبدأ المساواة يطرح ضمن معايير بعضها غير قابل للتطبيق، وقد تٌسبب تلك المعايير انفصامًا في المجتمعات، ومن ضمن تلك المعايير الغير واعية بمبدأ المساواة، المساواة بين البشر بشكل مطلق دون النظر إلى عوامل التمايز والتفاضل بينهم، وهناك من يخلط بين عامل التمايز والتفاضل وعامل التّمييز العنصري، وهذه إشكاليات استدعت دراسة هذا الموضوع بشكل يمكن من خلاله إظهار مبدأ المساواة في الشريعة الإسلامية ضمن معاييره المنضبطة. وسوف تتبع الدراسة المنهج الوصفي التحليلي للتتبع النصوص التشريعية ذات العلاقة، وتحليلها بما يتلاءم مع موضوع الدراسة للوصول إلى النتائج المطلوبة.Abstract in Arabic هدفت الدراسة إلى بيان مبدأ المساواة في الإسلام من خلال عدة أطر مهمة، والتي تمثل المفاهيم المعرفية والعملية لمبدأ المساوة بين البشر، ومن خلال تلك المفاهيم، نستطيع أن نتوصل إلى حقائق مهمة تتبين أن المساواة الإنسانية ليست بالضرورة أن تعني أن يتساوى الناس في كل أمورهم الحياتية الاجتماعية والسياسية والاقتصادية - وهو ما تعنيه الدراسة بإمكانية التمايز في هذه الجوانب- وإنما يقصد بمبدأ المساواة في الإسلام أن الناس سواسية في الحقوق والواجبات، وهو ما يمكن أن نسميه وجوب المساواة وامتناع التّمييز العنصري خاصة في هذا الجانب المحوري "الحقوق والواجبات". وهناك إشكالية في ازدواج المعايير المعاصرة لفهم حقيقة وفلسفة المساواة الإنسانية، ولذلك فإن مبدأ المساواة يطرح ضمن معايير بعضها غير قابل للتطبيق، وقد تٌسبب تلك المعايير انفصامًا في المجتمعات، ومن ضمن تلك المعايير الغير واعية بمبدأ المساواة، المساواة بين البشر بشكل مطلق دون النظر إلى عوامل التمايز والتفاضل بينهم، وهناك من يخلط بين عامل التمايز والتفاضل وعامل التّمييز العنصري، وهذه إشكاليات استدعت دراسة هذا الموضوع بشكل يمكن من خلاله إظهار مبدأ المساواة في الشريعة الإسلامية ضمن معاييره المنضبطة. وسوف تتبع الدراسة المنهج الوصفي التحليلي للتتبع النصوص التشريعية ذات العلاقة، وتحليلها بما يتلاءم مع موضوع الدراسة. وقد توصلت الدراسة إلى نتائج من أهمها: أن المساواة لا تتعارض مع التميّز، وأن التميّز لا يعني التمييز، وأن الإسلام بمبادئه وقيمه الحضارية يؤسس للمساواة بين الناس على أساس الوحدة الإنسانية، وأن الوحدة القيمية والحضارية هي قيم للتمييز وليست للتمييز.   Abstract in English The study aimed to clarify the principle of equality in Islam through several important frameworks, which represent the cognitive and practical concepts of the principle of equality between human beings, and through these concepts, we can reach important facts that show that human equality does not necessarily mean that people are equal in all their life matters. Social, political, economic, and the like -which is what the study means about the possibility of differentiation in these aspects- but by the principle of equality in Islam he means that people are equal in rights and duties, which we can call the obligation of equality and the abstention of racial discrimination, especially in this pivotal aspect, "rights and duties". This is the Islamic perspective on the principle of equality in this vital aspect. Likewise, Islam has allowed and encouraged competition and differentiation among people in various fields of scientific and practical life. Therefore, people are different at home according to the efforts they exert in developing themselves and providing benefits to their societies. This differentiation does not affect the element of equality in rights and duties in the Islamic perspective, and it does not lead to racism. It should be noted that there is a problem with double standards in the contemporary understanding of the truth and philosophy of equality among human beings. Therefore the principle of equality is presented within the criteria, some of which are not applicable. These standards may cause division in societies, for example, there are those who call for equality between human beings Absolutely without looking at the differential factors between them. There are those who confuse differential with racism. The study will follow the descriptive and analytical method for reading the relevant legislative texts and analysing them in proportion to the subject of the study. The study found results which: that equality does not contradict with excellence, and that differentiation does not mean racism, and that Islam, with its principles and cultural values, establishes equality among people based on human unity, and that the value and cultural unity are values of differentiation and not racism

    Molecular characterization of local isolates of infectious bursal disease virus from broiler chickens in Iraq

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    The present study was conducted to characterize a new field isolates of infectious bursal disease virus (IBDV) by reverse transcription-polymerase chain reaction (RT-PCR) and partial sequencing of VP2 gene. The virus could be detected in five of seven field samples from broiler chickens in Iraq. Nucleotide sequences of field isolates were compared with 33 reported IBDV strains from different parts of the world. Nucleotide substitutions at I242, Q249, Q252, I256, D279, A284, I294, S326 and S330 specific for very virulent (vv) strains, were maintained in all the field isolates. Deduced amino acid substitutions A222, I242, Q249, Q252, I256, D279, A284, I294, S326 and S330 specific for vvIBDV strains were also present in all the isolates. Phylogenetic analysis showed that all the field isolates in the present study were closely related to reported UK (XZh) and Japan (OKYM) field isolates. Further comprehensive investigations will provide more information on the distribution, variability, phylogenetic relationships of different vvIBDV isolate in Iraq and other parts of the worlds

    Critical discourse analysis speech of Hillary Clinton through the American Election

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    This paper sheds light on the American election from the side of one candidate its name Hillary Clinton she was candidate for American election in 2016. We chose this candidate because it is a female and also the mind of this candidate will be different from her opponent. Also Clinton is considered as the most effective woman in the American politics. In this paper we will talk about critical discourse analysis and what is meant by critical discourse analysis and how it works and analyses the politician’s discourse. The model used in this paper is Van Dijk’s model of critical discourse analysis. Discourse analysis is the main point of this paper and we will focus on how critical discourse analysis works in politics. The objectives of this paper- (1) what are the ideologies that are used in this discourse; (2) Clinton used her power in a perfect way; (3) Hers is the female speech different from male speech. The result shows that any new admiration first thing do they are want to run the race for the presidency should underestimate the previous leader so Clinton starts expressing her negative rejection to the previous government for some points. The result shows that she shows herself as a great leader and the successful one. She talks about Iran and the fears for attacking Israel and also fears from Hezbollah for striking Israel. Clinton’s speech is not completely different from male speech because they used same the ideology, lexical words and exaggeration
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