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Dissertations / Theses on the topic 'Al??ma'

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Published: 4 June 2021
Last updated: 13 February 2022

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1

Algashami, Abdulaziz Mohammed. "Al-Isharat Al-Saniyah Fi Ba 'd Ma 'ani al-Mabahith al-Asliyah by Abu'Abd Allah Muhammad Ibn 'Ali Al-Shutibi : investigation and annotation." Thesis, University of Wales Trinity Saint David, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.683076.

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2

Ma, Duancheng [Verfasser]. "First-principles investigations of solid solution strengthening in Al alloys / Duancheng Ma." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2012. http://d-nb.info/1024056120/34.

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3

Al-Anazi, Faisal Farhan. "A critical edition of al-Ta 'rif Bima Amasat al-Hijra min Ma 'alim Dar al-Hijra by Jamal al-Din Muhammad ibn Ahmad al-Mutari (671/1272-741/1340)." Thesis, Durham University, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.530005.

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4

Bourgui, Abderrafik. "Narrativité et statut des personnages dans le roman de S. Hitata "Al-ayn dat al-gafn al-ma dini", "L'Oeil à la paupière métallique"." Lille 3 : ANRT, 1989. http://catalogue.bnf.fr/ark:/12148/cb37612185j.

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5

Hendricks, Mogamat Mahgadien. "A translation, with critical introduction, of Shaykh al-`Alāwī’s al-Risālah al-Qawl al-Ma`Rūf fī al-Radd `alā man Ankara al-Tasawwuf (a kind word in response to those who reject Sufism)." University of the Western Cape, 2019. http://hdl.handle.net/11394/6663.

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Magister Artium - MA
The objective of this thesis is the translation of an original defence of Sufī practice titled al- Risālah al-Qawl al-Ma`rūf fī al-Radd `alā man Ankara al-Tasawwuf (A Kind Word in Response to those who Reject Sufism) by the Shaykh Aḥmad ibn Muṣṭafā al-`Alāwī. By translating this text it is hoped to affirm the principle that Sufism is the result of ijtihād (legal reasoning) rather than bid`ah (innovation) and that it therefore forms part of Sunnah. This chapter provides our introduction to the translated text. Section One reviews classical works in defence of the Sufis, as well as secondary sources relied upon by the translator. Section Two provides a description of the life and works of Shaykh Aḥmad ibn Muṣṭafā al- `Alāwī. Section three discusses the legacy of the Shaykh, including the contemporary state of the `Alawiyah Ṭarīqah. Section Four provides a short analysis of some of the written works of the Shaykh. Section Five evaluates the methodology of the Shaykh as a method of ijtihād. Section Six introduces the translated text that follows this chapter. Section Seven outlines the translation strategy that is followed. It also highlights unique problems encountered during translation, such as words with unique meanings and words with nuances and meanings different to that implied by the author.
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6

Al-Hajeri, Shayea Abdulhadi Saif. "Critical edition of the eleventh volume of 'Iqd al-jumān fī tārīkh ahl al-zamān, with particular reference to the historical fragments from the lost book of Muḥammad b. 'Abd al-Malik al-Hamadhānī called : 'Unwān al-siyar fī maḥāsin ahl al-Badū wa'l Ḥaḍar or Al-Ma'ārif al-muta'khkhira." Thesis, University of Edinburgh, 2007. http://hdl.handle.net/1842/7525.

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This thesis is divided into four sections. The first chapter deals with Mamlūk historiography and its major characteristics, alongside an examination of the life al' Aynī's, who was one of the most prominent historians of the period. Special attention is paid to his professions, masters, students as well as his numerous works. Chapter two, on the other hand, focuses on the copies of 'Iqd al-jumān fi tārīkh ahl al-zamān, mentioning the published volumes that covered most of the Ayyūbid and Mamlūk eras. The rest of this chapter deals with the methodology used in the edition of Volume eleven (431-520/1040-1126) as well as demonstrating its importance and sources. Chapter three presents an edition of the Arabic text of Volume eleven. Chapter four is a separate volume, which initially deals with the life and works of the historian Muḥammad b. 'Abd al-Malik al-Hamadhānī. The rest of chapter examines the historical fragments from his lost historical book, called 'Unwān al-siyar fī maḥāsin ahl al-Badū wa'-l Ḥaḍr, also known as Al-Ma'ārif al-muta'akhkhira: these fragments are to be found in Volume eleven of the 'Iqd al-jumān. At the end of this chapter, the Arabic text is reconstructed and its biographical materials, are reorganised in alphabetical order.
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7

Iskandir, Jamil Ibrahim. "Tradução do arabe para o portugues do tratado I da obra "al-Mabda'wa al-Ma 'Ad" (a origem e o retorno) de Avicena." [s.n.], 1997. http://repositorio.unicamp.br/jspui/handle/REPOSIP/280212.

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Orientador: Carlos Arthur Ribeiro do Nascimento
Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Filosofia e Ciencias Humanas
Made available in DSpace on 2018-07-22T07:56:47Z (GMT). No. of bitstreams: 1 Iskandir_JamilIbrahim_D.pdf: 7422208 bytes, checksum: a91d44951845216b190c756858378f23 (MD5) Previous issue date: 1997
Resumo: Este trabalho consiste numa tradução do árabe para o português do tratado I (52 cap.) da obra AI-Mabda' wa al-ma'ad (A origem e o retorno) de Avicena. Segundo o próprio Avicena, o conteúdo deste trabalho refere-se à metafísica e trata especificamente da "confirmação do princípio primeiro de tudo, sua unicidade e a enumeração de seus atributos peculiares".A tradução é precedida de uma introdução e seguida por uma síntese dos capítulos traduzidos um vocabulários árabe-português. Constam em anexo a tradução de outros textos de Avicena, a tradução de um capítulo de al-FarabI sobre a palavra "ser" e os textos árabes originais.
Abstract: Not informed.
Doutorado
Doutor em Filosofia
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8

Hendricks, Mogamat Mahgadien. "A translation, with critical introduction, of Shaykh °Alawåi al-Risåalah al-Qawl al-Ma `råuf fåi al-Radd `alåa man Ankara al-Tasawwuf: A kind word in response to those who reject Sufism." Thesis, University of the Western Cape, 2005. http://hdl.handle.net/11394/2152.

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Magister Artium - MA
The objective of this thesis was the translation of an original defence of Sufi practice titled "A Kind word in response to those who reject sufism" by Shaykh Aòhmad ibn Muòsòtafá °Alawåi. This book was written in defence of Sufis and Sufism. This research provide some notes on the life, spiritual heritage and writings of the Shaykh °Alawåi in conjunction with a critical introduction to complement the translated text. The Shaykh's methodology applied in his ijtihåad to validate and defend the Sufis and their practices was also reviewed.
South Africa
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9

Mirarchi, Mariateresa <1979&gt. "Resezioni epatiche eco-guidate radicali ma conservative simultanee alle resezioni colo-rettali. Un approccio sicuro al cancro colorettale avanzato." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amsdottorato.unibo.it/7006/.

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Il cancro colorettale (CRC) rimane la prima causa di morte nei paesi occidentali.Dal 15% al 25% dei pazienti affetti da CRC presenta metastasi epatiche sincrone (CRLM) al momento della diagnosi.La resezione epatica radicale rimane l’unica terapia potenzialmente curativa in presenza di CRLM con una sopravvivenza a 5 anni compresa tra il 17% ed il 35% ed a 10 anni tra il 16% e il 23% rispettivamente. La tempistica ottimale per la resezione chirurgica in caso di presentazione sincrona di CRC è controversa.Questo studio intende dimostrare che le resezioni epatiche ecoguidate radicali ma conservative simultanee ad una resezione colorettale rappresentano una tecnica sicura ed efficace nei pazienti con CRC avanzato. 48 pazienti sono stati sottoposti ad una resezione simultanea colorettale ed epatica. L’età media +SD (range) era di 64,2+9,7 (38-84).Un solo paziente è deceduto entro 30 giorni. La mortalità post operatoria è stata complessivamente del 2,1%. Nove pazienti (18,8%) hanno sviluppato una o più complicanza ,4 (8,3%) di grado III-IV sec. Clavien-Dindo e 5 (10,4%) di grado I-II. La durata complessiva dell’intervento chirurgico simultaneo è stata di 486,6+144,0 (153-804) minuti.Questo studio conferma che le resezioni colorettali ed epatiche simultanee possono essere eseguite senza un significativo aumento della morbilità e mortalità perioperatorie, anche in pazienti sottoposti ad una resezione anteriore ultrabassa ed in quelli in cui sia indicato il clampaggio intermittente dell’ilo epatico. L’IOUS è efficace nel ridurre l’estensione della resezione epatica in pazienti sia con CRLM anche multiple e bilobari .Poichè le complicanze maggiori sono frequenti dopo resezioni epatiche maggiori simultanee, riducendo l’estensione della resezione del parenchima epatico si può avere un impatto favorevole sul decorso post operatorio.Le resezioni epatiche ecoguidate radicali ma conservative simultanee ad una resezione colorettale sono una tecnica sicura ed efficace in pazienti con carcinoma colorettale avanzato e andrebbero considerate l’opzione primaria in casi selezionati
Colorectal cancer(CRC) is still one of the leading causes of cancer-related death in the Western countries. Liver metastases (CRLM) are present in nearly 15% to 25% of individuals with newly diagnosed colorectal cancer and will develop in up to 50% of patient during the course of their disease. Radical liver resection remains the only potentially curative therapy for patient with CRLM, with reported 5-and 10 year actuarial survival rates of 17% to 35% and 16% to 23%, respectively. The optimal timing for surgical resection in case of syncronous presentation of primary CRC and liver metastases has long been controversial. This study aimed to determine whether simultaneous radical but conservative IOUS-guided LR and colorectal resection (CRR) are safe and effective in patient with SCRLM. Forty-eight patients received simultaneous colorectal and liver resection. Mean+SD (range) age was 64,2+9,7 (38-84) years. One patient died within 30 p.o. days; overall postoperative mortality was 2,1%. Nine patients (18,8%) developed one or more complications, 4 (8,3%) of grade III-IV sec. Clavien-Dindo and 5 (10,4%) of grade I-II. Duration of surgery was 486,6+144,0 (153-804) minutes. Postoperative hospital stay was11,9+6,6 (6-50) days. This study confirms that simultaneous colorectal and liver resections can be performed safely without significant increase of perioperative morbidity and mortality rates, also in patients undergoing ultralow anterior resection and in those requiring intermittent hepatic pedicle clamping. IOUS guidance is effective in reducing the extension of LR in patients with SCRLM, even in those with bilobar SCRLM. Since major complications are frequent after simultaneous major LR and CRR, reducing the extent of liver parenchyma removal may have a favourable impact on postoperative course. Simultaneous radical but conservative IOUS-guided LR and CRR is a safe and effective in patient with SCRLM and could serve as primary option for selected cases
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10

Welsford, Thomas. "Loyalty, welfare and selfhood in early-modern Central Asia : the Tuqay-Timurid takeover of Greater Ma ware al-nahr, 1598 - 1605." Thesis, University of Oxford, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.503997.

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11

Hamdan, A. H. A. "The literature of Medina in the twelfth century A.H. (eighteenth century A.D.) examined from contemporary sources, with a critical edition of one of these sources : Al-Akhabar al-Ghariba fiDhikr ma waqa a bi-Tayba al-Habiba by one Ja Far Hashim al-Husayni." Thesis, University of Manchester, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376293.

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12

Yilmaz, Mehmet Fatih. "Radiative properties of L-shell Mo and K-shell Al plasmas from planar and cylindrical wire arrays imploded at 1 MA Z-pinch generator." abstract and full text PDF (UNR users only), 2009. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3355608.

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13

Simão, João Paulo Santos. "O pensamento histórico de aṭ-Ṭabarī: relatos do califado de al-Ma\'mūn (198-218 a.H.) na História dos Mensageiros e dos Reis." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/8/8159/tde-13112017-191217/.

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Nesta pesquisa analisamos passagens de A História dos Mensageiros e dos Reis, obra histórica de aṭ-Ṭabarī, estudioso que viveu entre os séculos nono e décimo da era cristã, no Iraque. A análise compreende o período em que governou o califa al-Ma\'mūn (198- 218 a.H./813-833 e.c.) e o momento anterior a isso, quando houve o conflito pelo califado entre esse califa e seu irmão, al-\'Amīn. Investigando premissas de políticas oficiais que favorecem ou desfavorecem a comunidade dos muçulmanos e de paradigmas religiosos que servem de guia para a compreensão da história do islã, corroboramos duas hipóteses acerca do escopo da História dos Mensageiros e dos Reis: a centralidade de sua preocupação com a comunidade dos muçulmanos e a produção de reflexões históricas. Apresentamos, antes da análise, uma breve discussão historiográfica do período de aṭ-Ṭabarī. Durante a análise e nas considerações finais, abordamos as operações narrativas internas de sua crônica histórica.
In this research, we analyze some episodes of the History of Messengers and Kings, aṭ-Ṭabarī\'s historical work, who lived between the ninth and tenth century of the Christian era, in Irak. The analysis comprehends the period when al-Ma\'mūn (198-218 AH/813-833 C.E.) was caliph and the moment right before it, when he was fighting against his brother al-\'Amīn for the caliphate. By investigating premises of official polices which acted in favor or against the muslim community and of the religious paradigms which served as guides to the comprehension of the history of Islam, we corroborate two hypothesis about the escope of the History of the Messengers and the Kings: the centrality of its concern with the muslim community and the production of historical reflections. Before the analysis, we present a brief historical discussion of aṭ-Ṭabarī\'s time. During the analysis and in the final considerations, we approach the internal narrative operations of his historical chronicle.
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Al-Enezi, Sulaiman E. "Managers' perceptions of the practice of public relations in the Institute of Public Administration, Riyadh, Saudi Arabia." Virtual Press, 1993. http://liblink.bsu.edu/uhtbin/catkey/864922.

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This study examined the perception of managers in the Institute of Public Administration (IPA), Riyadh, Saudi Arabia as to the way public relations is practiced within Saudi Arabia based on a comparison with Grunig's four models of public relations. Out of a population of 38 directors and director generals, 30 participated in a personal interview for a 79 percent response rate.A Q-sort analysis revealed two perceptions of public relations performance in the Institute. Perceptions differed based on educational experience, and managerial levels. Top managers with Ph.Ds tended to view performance as related to Grunig's Press Agentry and One-Way Information models. Fewer level employees saw performance related to the Two-Way Asymmetrical and Symmetrical models. The researcher concluded that the more higher educated level managers had a better understanding of the reality of performance of public relations in IPA. Main attitudes from the sorts of the participants showing a significantly and different attitude in how directors generals and directors perceived public relations was being practiced in the IPA. The directors generals and directors strongly held different views concerning the practice of public relations in the IPA.
Department of Journalism
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15

Esmail, Zoheir Ali. "Between philosophy and ʿIrfān : interpreting Mullā Ṣadrā from the Qajars to Post-Revolutionary Iran." Thesis, University of Exeter, 2015. http://hdl.handle.net/10871/22976.

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This thesis examines the interpretive tradition of Mullā Ṣadrā in the context of the schools of Tehran and Qum. Mullā Ṣadrā’s transcendental philosophy (al-ḥikmah al-mutaʿālīyah or ḥikmat) avails itself to a number of readings; however, this thesis focuses on the philosophical and mystical (ʿirfānī) readings in terms of their development, transmission and their impact on how ḥikmat is understood in the modern Iranian seminary (ḥawza). The way in which a text is read in the ḥawza has great implications for the development of ideas, as the ḥawza uses a text based system to train students in a particular field. While both readings were studied by the majority of transcendental philosophers (ḥukamāʾ) in the school of Tehran, the school of Qum saw a greater separation between the readings and I show that for a number of reasons, including the introduction of seminal texts written by ʿAllāmah Ṭabāṭabāʾī, a preference developed for a more philosophical reading of transcendental philosophy. I examine evidence for the different preferences of the ḥukamāʾ for either a more philosophical or ʿirfānī reading of ḥikmat through an examination of their writings on the subjects of existence (wujūd), guardianship (walāyah) and resurrection (maʿād) which act as case studies. The theoretical implications of both approaches are examined in each chapter as well as their interdependence. The schools of Tehran and Qum built on Mullā Ṣadrā’s framework and provided new interpretations of important issues. Apart from the intricate discussions on the core aspects of ḥikmat, Muḥammad Riżā Qumshihī’s masterful examination of the Seal of the Saints and ʿAlī Mudarris Zunūzī’s philosophy of bodily resurrection are examples of a thriving interpretive tradition in Iran and constitute significant developments of important philosophical and ʿirfānī concepts from the ideas of their predecessors.
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16

Kerrouche, Abdelkader. "L'exploitation de la litterature populaire dans le roman algerien d'expression arabe de 1970 a 1985. Romans de reference : "rihl al-ganub" (le vent du sud) de banhadduga, "al-laz" (l'as) de wattar, "ma tabaqqa min sirat lahdar hamrus" (ce qui reste de la geste de lakhdar hamro." Paris 3, 1989. http://www.theses.fr/1989PA030089.

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Notre etude porte sur l'exploitation de la litterature populaire dans le roman algerien d'expression arabe a travers trois romans de reference couvrant la periode 1970 - 1985. Cette etude comporte deux parties. La premiere partie est theorique. Elle recouvre: - un apercu historique sur la litterature romanesque algerienne d'expression arabe, ( naissance, developpement et tendances. ) - une definition de la litterature populaire ou nous avons essaye d'approcher quelques definitions deja elaborees avant de tenter une appellation de l'objet defini. - un reperage, une codification, une traduction et un commentaire des genres populaires exploites dans les trois romans de reference. La deuxieme partie est pratique. Elle est consacree a l'analyse des genres populaires exploites : modes de fonctionnement au niveau de l'enonciation et niveau de la thematique, les procedes de leur insertion et leur fonction, la transparence ou l'ambiguite du texte populaire exploite et enfin son role dans l'elaboration des oeuvres romanesques chez les romanciers
Our study deals with the use of popular literature in the algerian novels of arabic langage through three novels as models covering the period of 1970 to 1985. This study contains two major parts. The first part is theorical which covers: - historical outline about the algerian romanesque literature of arabic langage ( birth, development and tendencies ). - a definition of the popular literature where we have tried to state some definitions already elaborated before attempting a definition of the defined object. - a location, codification, translation and commentary on popular genres (types) exploited in the tree refering works (books). The second part is pratical. It is dedicated to analyze the popular exploited genres ( types ): mood of function at the level of enunciation and at the thematic level, the procedures of their insertion and their function, the transparence or the ambiguity, and finally the role of the exploited popular text in the romanesque elaboration
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17

Lamrani, Lila. "La psychologie aristotélicienne dans l'Islam classique : traduction et commentaire de l'Épître sur le retour d'Avicenne." Thesis, Paris 4, 2014. http://www.theses.fr/2014PA040199.

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La Risala al-adhawiya fi al-ma`ad d’Avicenne, portant sur la question du Retour à la vie une fois la mort survenue, présente un certain nombre de thèses originales par rapport aux autres écrits de ce philosophe. Le Retour ne peut concerner les corps : il est en effet réserver aux âmes dans la mesure où l’essence de l’homme réside dans son âme. Les corps se corrompent définitivement au moment de la mort. Le Coran n’a rien d’un texte démonstratif, il s’agit d’un texte rhétorique visant à susciter chez ses lecteurs le comportement moral approprié. On ne peut donc déduire de l’affirmation coranique répétée selon laquelle les corps reviendront à la vie que les corps seront effectivement ressuscités. Par ailleurs, si dans le monde physique il existe une pluralité d’âmes, c’est uniquement en raison de la multiplicité de la matière corporelle qui les accueille. Si les âmes doivent survivre indépendamment des corps qui assurent leur individuation, comment pourraient-elles exister individuellement ? Il n’y aura pas d’existence individuelle des âmes après la mort, mais un Retour de ces âmes au Principe (l’Intellect Agent, ou, en dernière instance, le Principe Premier, Dieu) dont elles émanent : les âmes se résorbent donc dans leur origine et n’ont plus d’existence séparée. Le Retour est absolu
Avicenna’s Risala al-adhawiya fi al-ma`ad, dealing with the question of Return to life once death has occurred, comes up with various original theses that do not appear in Avicenna’s other writings. The Return cannot affect the body : it is indeed dedicated to souls inasmuch as the essence of man lies in his soul. Bodies get corrupted once and for all when death occurs. The Quran has nothing to do with a demonstrative text, it is a rhetorical text that aims at provoking in its readers the appropriate moral behaviour. It is therefore impossible to deduce from the repeated coranic assertion saying that bodies will come back to life that bodies will effectively resurrect. If in the physical world there is a plurality of souls, it is only because of the multiplicity of the corporeal matter that receives them. If souls have to survive independently from bodies that allow their individuation, how then could they individually exist ? There will not be any individual existence of souls in the hereafter, but a Return of these souls to the Principle (the Agent Intellect, or, at last, the First Principle, God) from which they emanate : therefore souls resorb in their origin and do not have any separate existence. It is an absolute Return
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Dincer, Ayse. "Numerical And Experimental Analysis Of Dissipative Silencer Coupled With Quarter Wave Tube." Master's thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615527/index.pdf.

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The study deals with investigation of acoustical characteristics of a hybrid silencer made up of a dissipative silencer and a quarter wave tube resonator. The theoretical and experimental analyses are performed to define acoustic characteristics of a simple expansion chamber and reactive perforated silencer, while the numerical and experimental solutions are presented for dissipative perforated silencer. Furthermore, the experiments and numerical solutions are extended to the hybrid silencer to find the effect of quarter wave tube resonator on the silencer performance. The experimental results of dissipative silencer are verified with theoretical solutions. The empirical expressions for acoustic impedance of perforation and filling material are presented in this study for use in a three-dimensional boundary element method (BEM). Besides, an experimental setup is also established to find the characteristic impedance and wavenumber of absorbing material to import BEM solution when the empirical expression cannot be used. The results found with BEM are compared by analytical and experimental results favorably.
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Lai, shin wha, and 廖馨華. "The Bauschinger effect of AL-Al3Ti alloys made by MA." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/58551802074572183286.

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Jiang, Liang-jeng, and 江良政. "The High Temperature Deformation Behavior of MA Al-Al3Ti; Alloys." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/72142078537749962110.

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Yang, Lin-Wuu, and 楊令武. "The High Temperature High Strain Rate Deformation Behavior of MA Al-Al3Ti Alloy." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/91191350212432444755.

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Hsu, Hong Hua, and 許宏華. "Study on the Thermodynamics and Kinetics of Ni-Al-Ti Three-phase Intermetallic Composites in the MA and Related Processes." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/49046027708614871576.

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博士
國防大學中正理工學院
國防科學研究所
97
The purpose of this study was to investigate the phase evolution of the Ni, Al, and Ti powder mixture with a composition of Ni60.1Al27.2Ti12.7 during both self-propagating high temperature (SHS) and mechanical alloying (MA) processes. The DSC thermal analysis of this powder mixture, from 20 to 1200℃, shows that there are two exothermic and two endothermic reactions in the SHS process. The phases present in heat-treated powder and MA samples were then identified using X-ray diffraction and examined metallographically. Data obtained from thermal analysis, XRD experiments and microstructure examination may be interpreted in terms of the Ni–Al binary and Ni–Al–Ti ternary phase diagrams. The growth of the γ phase at the expense of the β phase was analyzed kinetically and shows that grain boundary diffusion is responsible for the γ growth in samples heat-treated at lower temperatures (670 or 875℃), while volume diffusion becomes dominant for the higher heat-treatment temperature (1165℃) in the SHS process. The sequence of formation of stable intermetallic phases was β–Ni(Al,Ti), γ–Ni3(Al,Ti) and β–Ni2AlTi when annealed from room temperature to 1200℃, and the sequence of formation of phases was the same as that in the MA process. In addition, disordered Ni75Al25-xTix (x = 0, 4, 8, 12) alloys were also prepared from elemental powders using a high-energy ball milling process. We analyzed the as-milled powders with an X-Ray Diffraction diffractometer (XRD) and a differential scanning calorimeter (DSC). It is found that the thermal stability of the disordered structure of Ni3(Al,Ti) of these powders increased with Ti content. The effective activation energy for ordering of Ni3(Al,Ti) was evaluated according to Kissinger’s plot. The results show that the effective activation energy of ordering and the rate of ordering transformation both decrease with Ti content.
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23

Yushau, Balarabe. "The predictors of success of computer aided learning of pre-calculus algebra." Thesis, 2004. http://hdl.handle.net/10500/1794.

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Abstract:
Mathematics achievement has been of great concern to researchers involved in mathematics education. This concern has resulted in research seeking to determine for example, the factors that positively or negatively contribute to student performance in mathematics. Many of the reported studies in the literature have investigated the factors within the context of mathematics teaching and learning in general. Very few studies have investigated the factors contributing to student achievement in mathematics when learning takes place in a computer aided environment. With the pervasiveness of computers in education in general, studies in this direction become imperative. The present study fills this gap in the literature by examining the extent to which selected variables (mathematics attitude, mathematics aptitude, computer attitude, computer prior experience, computer ownership, proficiency in language of instruction, and learning style) contribute to students' achievements in pre-calculus algebra classes that are supplemented with a computer lab program. The participants in the study were 120 students sampled from the population of students enrolled in the second pre-calculus algebra course at the preparatory year program of King Fahd University of Petroleum & Minerals during the 2003/2004 academic session. The instruments used to measure the study constructs were the mathematics attitude scale (Aiken, 1979), the computer attitudes scale (Loyd & Gressard, 1984a), and the learning styles questionnaire (Honey & Mumford, 1992). New instruments to measure computer prior experience and computer ownership were developed for the present study. Hypotheses formulated for the study were tested using multiple regression and other statistical techniques. The results show that mathematics aptitudes and English language proficiency are the most significant contributors to students' mathematics achievement. No other variables show statistically significant effects on students' achievement. Together, the selected variables explain more than 41 percent of the total variance of students' achievement. Theoretical and policy-making implications of the results are outlined and discussed.
Mathematical Sciences
D. Phil. (Mathematics, Science and Technology Education)
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