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Physical Sciences and Mathematics Commons™
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Articles 3031 - 3060 of 3128
Full-Text Articles in Physical Sciences and Mathematics
Monitoring The Effect Of Recrystallization And Quenching In Almg_{X} Alloy By Pat, A. Ashour, Nour Zaki El-Said, Emad A. Badawi
Monitoring The Effect Of Recrystallization And Quenching In Almg_{X} Alloy By Pat, A. Ashour, Nour Zaki El-Said, Emad A. Badawi
Turkish Journal of Physics
Positron annihilation technique (PAT) lifetime measurements have been carried out on AlMg_{x} samples (x = 0.23, 0.85, 1.27 and 1.4 at %) with point defects and dislocations introduced by plastic deformation at room temperature. Clustering of vacancies was observed by quenching using PAT. The samples were annealed at 573 K for 12 hours to homogenize and divided into two sets. The first set of AlMg_{x} (x = 0.23, 0.85 and 1.4 at %) was deformed to 10, 25 and 35% thickness reduction. Isochronal annealing was studied in the range of 300-550 K. In the second set of measurements, AlMg_{x} (x …
Characterization Of The Sno_{2}/P Contact Resistance And Sno_{2} Properties In Operating A-Si:H P-I-N Solar Cells, Ruhi̇ Kaplan, Bengü Kaplan
Characterization Of The Sno_{2}/P Contact Resistance And Sno_{2} Properties In Operating A-Si:H P-I-N Solar Cells, Ruhi̇ Kaplan, Bengü Kaplan
Turkish Journal of Physics
A method is presented to characterize the TCO/p contact and the TCO sheet resistance in a-Si TCO/p-i-n superstrate devices. It is extremely useful for understanding resistance losses in modulus and diagnosing how plasma processing influences the TCO layers. Analysis of 4-terminal dark J-V measurements as a function of temperature on devices with varying TCO geometry yields the TCO/p contact resistance R_{TCO/p}, its activation energy E_{a} or barrier height, and the TCO sheet resistance R_{SH} in an integrated device structure. The method is applied to devices fabricated on different brands of commercial SnO_{2} substrates with different p-layers. Important new results are …
Measurement Of Photon-Induced K X-Rays Production Cross Sections For Elements With 62 \Le Z \Le 74, Sabri̇ye Seven
Measurement Of Photon-Induced K X-Rays Production Cross Sections For Elements With 62 \Le Z \Le 74, Sabri̇ye Seven
Turkish Journal of Physics
X-ray production cross sections of K\alpha_{1}, K\alpha_{2}, K\beta'_{1} (= K\beta {\ss}_{1} + K\beta_{3} + K\beta_{5}) and K\beta'_{2} (= K\beta_{2} + K\beta_{4} + transitions from higher levels) lines have been measured and theoretically calculated for six elements with 62 \le Z \le 74 at excitation energy of 78.706 keV, the weighted avarage of K conversion x-rays emitted from Bi. The experimental results were compared with theoretically predicted values based on relativistic Hartree-Slater and Hartree-Fock theories, a comparison that was found to be in good agreement to within the experimental uncertainties.
Online Chatting System For Online Community System, Boon Hong Lim
Online Chatting System For Online Community System, Boon Hong Lim
Student Works (2000-2009)
Online Community is a web application that provides a complete and efficient communication environment for the online user. Any online user can create a community to connect a group of online users. Therefore, online user can create a private area to share their information and knowledge with other online user in the secure environment. Online community can be divided into 3 main modules Online Information System, Administration System and Online Chatting System. This project is focus on the on the Online Chatting System. Online Chatting System is a java Chat application that based on the Online Community. The main purpose …
Sistem Maklumat Penduduk Dan Sosiologi Kampung (Smpsk), Jidin Rozilawati
Sistem Maklumat Penduduk Dan Sosiologi Kampung (Smpsk), Jidin Rozilawati
Student Works (2000-2009)
Sistem Maklumat Penduduk dan Sosiologi Kampung (SMPSK) adalah sistem yang akan dapat mengurus maklumat-maklumat penting yang diperlukan oleh pengurusan sesebuah kampung seperti maklumat penduduk, maklumat kemudahan awam, ekonomi, pertubuhan serta maklumat-maklumat lain yang berkaitan. Sistem ini dijangka dapat memainkan peranan untuk melicinkan dan meringankan kerja pihak pentadbiran kampung dengan menyediakan fungsi-fungsi tertentu. Matlamat projek ini dijalankan adalah untuk membangunkan sebuah sistem yang dapat membantu pihak pentadbiran kampung untuk melicinkan dan menguruskan pentadbiran kampung dengan lebih teratur dan sistematik serta tersusun. Selain itu, sistem ini membenarkan penyimpanan data yang lebih terkawal dan selamat dan proses mengemaskini data yang sedia ada pula …
Sistem Maklumat Latihan Industri, Mazlin Idrus Nor Edelina
Sistem Maklumat Latihan Industri, Mazlin Idrus Nor Edelina
Student Works (2000-2009)
SMLI merupakan satu sistem capaian segala maklumat mengenai Latihan Industri dari capaian borang-borang untuk diisi kepada pangkalan data para pelajar y ng mengikuti Latihan Industri untuk setiap sesi. Dengan adanya sistem ini, dapat memudahkan pihak pentadbir yang menguruskan program Latihan Industri kerana setiap penghantaran data dan pemprosesan data dapat dilakukan didalam sistem ini. SML1 mempunyai kelebihan dan kepentingannya yang tersendiri. Antaranya sistem ini membekalkan maklumat mengenai program Latihan Industri yang diadakan. Selain itu ciri-ciri keselamatan juga ditekankan di dalam sistem ini. Dengan ciri keselamatan ini setiap data yang dihantar ke dalam pangkalan data terdiri daripada data yang sah dan daripada …
Sistem Aduan Kerosakan Komputer Fsktm, Abdul Manan Mohd Saud Ayutollah
Sistem Aduan Kerosakan Komputer Fsktm, Abdul Manan Mohd Saud Ayutollah
Student Works (2000-2009)
Dalam menghadapi cabaran era sains dan teknologi pada alaf ini, teknologi maklumat menjadi tunjang utama dalam informasi terhadap setiap golongan masyarakat. Dengan berkembangnya teknologi maklumat di negara ini, seharusnya pihak yang bertanggungjawab mengambil inisiatif untuk meningkatkan lagi tahap celik IT dikalangan masyarakat. Bagi merealisasikan harapan tersebut, pendekatan yang terbaik diperlukan dan seharusnya dilakukan bermula dari sekarang. Justeru itu, sebagai menyahut saranan dalarn pembangunan teknologi maklurnat ini, Fakulti Sains Komputer dan Teknologi Maklumat yang menjadi salah sebuah pusat penghasilan golongan yang mahir dengan teknologi perkomputeran semestinya mcnerima cabaran tersebut dengan menggunakan semaksimum yang mungkin teknologi maklumnt di dalam segala urusnn pentadbirannya. …
Course Info Center (Cic), Shih Wei How
Course Info Center (Cic), Shih Wei How
Student Works (2000-2009)
Course Info Center ( CIC ) is a web-based system that bring out an easiest way for company's staff to find the information about the training courses search by their training's need. Chapter one of the report is showing out the introduction, objective, scope, and the reason why we build out the CIC system. The overview of the project in this chapter is considering the whole system's introduction. For the specific part, it can be found in Chapter Three and Chapter Four which are including the system analysis and system design. Before we make the decision to choose the development …
Dealership E-Commerce Package (E-Payment System), Chon Hui Ooi
Dealership E-Commerce Package (E-Payment System), Chon Hui Ooi
Student Works (2000-2009)
The purpose of this project is to curry out a critical research and to gather all the relevant information regarding a specific e-payment system. Appropriately. the detail information will simultaneously cover the protocol that has been used by the specific e-payment system. Hence, this project will focus on an electronic payment protocol named Secure Electronic Transaction or SET and it shall emphasize particularly on the security aspect provided by the above mention protocol. The result from the research will be presented in an Internet to provide a comprehensive and thought information on the subject. This Dealership E-Commerce Package wills allows …
School Management System, Swee Ling Tan
School Management System, Swee Ling Tan
Student Works (2000-2009)
The purpose of this project is to develop a School Management System that utilized information technology to help to manage the school. As a school can be considered as an organization that was head by a principal, a well-managed school is important to make a school a conducive learning environment. School Management System is a client/server application that is develops mainly for secondary school. The aims of developing this system are to help the teachers manage resources and processes. It is also aims to reduce the workload of teachers by automating some of processes. This School Management System will be …
Sistem Maklumat Kenderaan Universiti Malaya (Simkum), Idris Kamariah
Sistem Maklumat Kenderaan Universiti Malaya (Simkum), Idris Kamariah
Student Works (2000-2009)
Proses pembangunan Sistem Maklumat Berasaskan Komputer telah berubah sejak 20 tahun yang lepas. Peningkatan yang dramatik dalam teknologi perkakasan iaitu dari segi memperbaiki kemampuan dan mengurangkan kos telah memperhebatkan dan meninggikan keperluan untuk memperbaiki proses. Oleh itu, saya mencadangkan untuk membangunkan Sistem Maklumat Kenderaan Universiti Malaya (SIMKUM). Sistem ini merupakan satu sistem baru yang akan mempercepatkan dan memudahkan pengurusan maklumat dan pendaftaran kenderaan di Universiti Malaya. Sistem ini juga dibangunkan untuk menggantikan sistem pengurusan lama di mana sistem yang sedia ada sekarang adalah secara manual. Di dalam sistem ini terdapat ciri-ciri menarik yang ditawarkan. Antaranya ialah kemudahan pendaftaran, keselamatan, penyemakan …
Clinic Management Information System (Cmis), Choong Leong Wong
Clinic Management Information System (Cmis), Choong Leong Wong
Student Works (2000-2009)
Clinic Management Information System or in short (CMIS) is a system that computerize the clinics activities. In the current manual system, lots of problems exist in the management of a clinic. Hand written records are difficult to read. Besides, records are written in papers and placed in the cupboard. There are possibilities that the files misplaced or lost. The stocks of the drugs are difficult to be keeping track. CMIS however eliminate most of the problem facing by manual system. Records are stored securely in the database. Records are easily referred by the users of the system. CMIS is developed …
Sistem Multimedia Bedtime Stories, Mohd Zain Nittihirawati
Sistem Multimedia Bedtime Stories, Mohd Zain Nittihirawati
Student Works (2000-2009)
Sistem multimedia bedtime stories merupakan satu sistem interaktif yang dibangunkan untuk menarik minat kanak-kanak untuk membaca sambil berhibur. Sistem ini dibangunkan untuk menghasilkan satu pendekatan yang lebih praktikal dalam memupuk semangat membaca di kalangan kanak-kanak melalui kombinasi elemen-elemen multimedia yang digunakan. Selain itu, kekurangan pakej ini khususnya dalam pembacaan cerita di pasaran merupakan antara faktor sistem ini dibangunkan. Sistem ini diharap dapat memenuhi kekurangan yang terdapat dalam sistem yang sedia ada dan meningkatkan lagi semangat kanak-kanak untuk membaca dalam persekitaran yang lebih interaktif.
E-Sekolah (Sistem Rekod Pelajar) Fakulti Sains Komputer & Teknologi Maklumat Universiti Malaya, Kuala Lumpur, Chun Siang Oh
E-Sekolah (Sistem Rekod Pelajar) Fakulti Sains Komputer & Teknologi Maklumat Universiti Malaya, Kuala Lumpur, Chun Siang Oh
Student Works (2000-2009)
Sistem e-Sekolah yang dibangunkan mengandungi beberapa modul yang tersendiri. Modul yang dibincangkan ialah Sistem Rekod Pelajar untuk kegunanaan pihak sekolah menegah secara khasnya dan pihak institusi pendidikan secara umumnya. Sistem ini dibina untuk menyimpan rekod peribadi pelajar. Objektif utama pembinaan sistem ini merupakan satu alternatif kepada kakitangan sekolah untuk menguruskan maklumat pelajar. Di samping itu, sistem ini dapat menggantikan pendaftaran pelajar secara manual. Justeru itu, kerja rutin kakitangan sekolah dapat berjalan lancar. Sistem ini dibangunkan secara berperingkat-peringkat yakni termasuklah fasa permulaan yakni fasa kajian, fasa analisa, fasa rekabentuk, fasa pengkodan dan fasa pengujian. Banyak pengalaman pahit dan manis dapat diperolehi …
Laman Web Info Unix, S. Hamid Marican Mohd Shazwim
Laman Web Info Unix, S. Hamid Marican Mohd Shazwim
Student Works (2000-2009)
Laporan ini adalah tentang projek yang dibangunkan sebagai projek latihan ilmiah. Laporan ini merupakan laoran latihan ilmiah dua. Projek Latihan Ilmiah ini ialah sebuah projek membangunkan laman web yang mengandungi informasi tentang sistem pengendalian UNIX yang dikenali sebagai Laman Web Info UNIX. Laman ini menerangkan fakta-fakta tentang UNIX dengan pada dan jelas. Laman ini dibangunkan supaya menjadi laman yang interaktif dan informatif. Ini adalah untuk menarik lebih ramai pengunjung ke Laman Web Info UNIX yang seterusnya dapat menjadikan laman ini antara laman utama untuk membuat rujukan tentang sistem pengendalian UNIX. Laman web tersebut dapat digunakan oleh pelbagai golongan pengguna tanpa …
Pengenalan Kepada Pc, Ahmad Zaki Muhammad Hadafi
Pengenalan Kepada Pc, Ahmad Zaki Muhammad Hadafi
Student Works (2000-2009)
Projek Latihan llmiah Tahap Akhir I dan II banyak memberi pengajaran dalam selok belok pembangunan sebuah sistem. Projek ini bertujuan membantu pengguna (ditujukan kepada pelajar) dalam memahami teknologi digital terutamanya bermula dari PC atau komputer. Dengan laungan kerajaan untuk melahirkan rakyat celik IT, adalah wajar juga projek ini dilasanakan kerana pengetahuan asas mengenai PC sekurang-kurangnya adalah satu permulaan yang baik. Dalam membangunkan sistem ini, pembangun sistem harus mempunyai atau membuat penyelidikan dalam menghasilkan satu sistem yang berkesan. Amat jelas kekurangan sistem itu jika tiada penyelidikan dilakukan. Namun penyelidikan tersebut juga harus mempunyai hasil yang baik juga bagi menghasilkan sistem yang …
Web-Based Counseling System (Wbcs), Swee Hong Woo
Web-Based Counseling System (Wbcs), Swee Hong Woo
Student Works (2000-2009)
Web-based Counseling System (WBCS) is a web-based system developed with objectives of implementing the system in the Internet as a solution to provide counseling services to those who needs. The system allows the authorized users to use all the service that the system provides. In this new millennium , computer and Internet have proved that they are an important part of human's life. No doubt, without Internet and computers, human's life will be a chaos. So, this project is developed to suit the changes of the world. This Web-based Counseling System is a combination of web-based system and client server …
Sistem Underwriting Bagi Insurans Nyawa (Subina), M.Rajet Mahizan Nani
Sistem Underwriting Bagi Insurans Nyawa (Subina), M.Rajet Mahizan Nani
Student Works (2000-2009)
Laporan latihan ilmiah ini adalah sebahagian daripada keperluan untuk ljazah Sarjana Muda Sains Komputer. Laporan ini adalah untuk merekodkan segala kerja dan tindakan yang telah dilakukan sepanjang Latihan llmiah I dan II iaitu bermula dari bab pengenalan sistem, kajian kesauran (literasi) yang dilakukan, metodologi yang digunakan untuk membangunkan sistem, fasa analisa dan rekabentuk sistem, fasa pelaksanaan dan pembangunan, fasa pengujian dan berakhir dengan perbincangan. Sistem yang saya bina adalah "Sistem Underwriting untuk lnsurans Nyawa" atau singkatannya SUBINA. Sistem ini dibangunkan bagi membantu dalam membuat keputusan bagi proses underwriting iaitu membuat keputusan bagi sebarang permohonan insurans nyawa dengan mengaplikasikan konsep case-based …
Atomic And Molecular Electron Affinities: Photoelectron Experiments And Theoretical Computations, Jonathan C. Rienstra-Kiracofe, Gregory S. Tschumper, Henry F. Schaefer, Sreela Nandi, G. Barney Ellison
Atomic And Molecular Electron Affinities: Photoelectron Experiments And Theoretical Computations, Jonathan C. Rienstra-Kiracofe, Gregory S. Tschumper, Henry F. Schaefer, Sreela Nandi, G. Barney Ellison
Chemistry Faculty Research & Creative Works
A review is given of the experimental determination of electron affinities (EAs). Also considered is the ability of computational chemistry methods to predict electron affinities. The development and present status of computational chemistry techniques for the prediction of atomic molecular EAs is also reviewed in a historical context. Through comparisons to experimental EAs and results from other theoretical methods, analysis of DFT EAs is given. In the context of other theoretical methods, the successes and failures of DFT EA predictions are detailed.
Siri Indeks Al-Quran Surah Al-Ikhlaas, Mohd. Zain Ammar
Siri Indeks Al-Quran Surah Al-Ikhlaas, Mohd. Zain Ammar
Student Works (2000-2009)
Kemajuan teknologi kini yang semakin berkembang pesat mula mendapat perhatian oleh masyarakat terutama dalam penggunaan komputer. Kini ia telah menjadi satu keperluan dalam membantu menyelesaikan masalah-masalah yang kompleks dan juga keperluannya dalam bidang pendidikan sebagai alat tambahan dalam membantu proses pembelajaran. Pakej perisian Siri lndeks AI-Quran merupakan satu aplikasi yang dibangunkan untuk menyebarkan maklumat tentang kitab suci AI-Quran dengan memberi fokus terhadap pencarian makna kalimat-kalimat AI-Quran secara elektronik. Ia mempunyai ciri-ciri sebuah aplikasi e-pembelajaran dengan memuatkan elemen-elemen multimedia seperti teks, audio, grafik dan animasi. lni dapat membantu proses pembelajaran menjadi lebih berkesan dan menarik. Pencarian maklumat dan pembelajaran secara tradisional …
A Web-Based Baby Names Selection System Report (Babysport), Jacob Erin Andreana
A Web-Based Baby Names Selection System Report (Babysport), Jacob Erin Andreana
Student Works (2000-2009)
Getting the right thesis topic these days can be really difficult. Everyone wants to develop a system that is the most latest, popular, and most important of all different from the other seniors, but at the same time simple and not too complex. In line with this, I wanted to do something different from the others. Names have deeper meaning than meets the eyes. English names, for an example originate from Greek, Hebrew French and etc. Indian names on the other hand come from different ethnic group such as Jain, Hindu, Sikh, Tamil and so on. We may not realize …
Sistem Maklumat Bantuan, Yaakop Rashidah
Sistem Maklumat Bantuan, Yaakop Rashidah
Student Works (2000-2009)
Sistem Maklumat Bantuan FSKTM merupakan satu sistem yang digunakan untuk menyimpan semua maklumat-maklumat cadangan langkah-langkah yang akan diambil ketika FSKTM menghadapi masalah yang boleh menggugat kelancaran aktiviti di FSKTM. Masalah merupakan satu perkara yang akan dihadapi oleh bukan sahaja individu, malah sesebuah organisasi. Sistem ini bertujuan memberi maklumat bantuan tentang apa yang harus dilakukan. Sistem ini bukan sahaja untuk ajk keselamatan tetapi maklumat yang terdapat di dalam sistem ini boleh digunakan sebagai maklumat tambahan pada pensyarah dan juga kakitangan di FSKTM. Tidak rugi untuk mengetahui maklumat-maklumat ini kerana ia dapat membantu semua pihak. Sistem ini saya bahagikan kepada 6 modul …
Pakej Pembelajaran Selangkah Ke Dunia Abjad (Seda), Mohamed Kasah Liana
Pakej Pembelajaran Selangkah Ke Dunia Abjad (Seda), Mohamed Kasah Liana
Student Works (2000-2009)
Perkembangan teknologi komputer kini dilihat begitu pesat sekali hinggakan tiada tanda-tanda yang ia akan reda atau berhenti untuk seketika. Berbagai gambaran diberi mengenai rekabentuk dan keupayaan komputer pada masa hadapan. Malaysia tidak ketinggalan dalam menikmati arus pembangunan yang berasaskan komputer ini. Berikutan perkembangan ini maka timbullah idea untuk membangunkan suatu sistem pembelajaran berpakej yang menerapkan pelbagai unsur multimediaa berinteraktif. Pakej yang diberi nama "Pakej SEDA" memberikan pengenalan asas abjad-abjad untuk kanak-kanak usia 3 hinggalah 6 tahun, malah sesuai juga digunakan untuk kanak-kanak berusia kurang daripada lingkungan umur diatas. Alternatif kepada guru-guru di sekolah dalam mempelbagaikan kaedah mengajar kerana peranannya yang …
Interactive Mathematics Learning System (Smartmath), Regina Tay Regina Tay
Interactive Mathematics Learning System (Smartmath), Regina Tay Regina Tay
Student Works (2000-2009)
Interactive Mathematics Learning System (Smartmath) is a Web-based Multimedia Learning-teaching system for lower primary school level. Primary school students, teachers, and parents are the target users of this system. It can be used as a teaching tool or as a self-learning program. The strength of Smartmath is that it provides lessons to educate users about basic mathematics operations according to users age group. Lessons are provided for children aged 7 and 8 which can also be used by preschool children. There are interactive quizzes that test the student's understanding after each lesson. Games based on mathematic operations and numbers are …
Family Information System (Familyis), Seok Luan Ang
Family Information System (Familyis), Seok Luan Ang
Student Works (2000-2009)
Computer information system and computer applications are very important to all the organizations. Thus the government is introducing the MSC or Multimedia Super Corridor. It is meant to develop Malaysia into a regional and international technology and telecommunications hub in 2020. The MSC will propel the transfer of technology and become the test bed for R&D in high-tech industries. Thus, Family Information System will be an example of what the function of family management in Smart Family will be like. The family management function is one most important feature in this system. This report is about the development of Family …
Electronic Document Delivery System (Edds), Eng Seong Ng
Electronic Document Delivery System (Edds), Eng Seong Ng
Student Works (2000-2009)
The Electronic Document Delivery System (EDDS) is a web-based system that promises a quick and efficient way to access information for University of Malaya. The entire request can be made electronically. and the materials shall be sent to the requester electronically. The service is also available 24 hours per day throughout the year because it is available online. The EDDS will cater the request for an article of a journal or a chapter of a book, which is not found in the University of Malaya Library collections. The objectives of the EDDS are to create an automated document delivery system …
Sistem Belajar Dan Menulis Jawi, Md. Salim Salhafiza
Sistem Belajar Dan Menulis Jawi, Md. Salim Salhafiza
Student Works (2000-2009)
Sistem Belajar Mengeja dan Menulis Jawi ini adalah sebuah sistem multimedia pembelajaran Jawi bagi kanak-kanak di dalam lingkungan umur 7 tahun hingga 9 tahun. Tujuan utama ia dibangunkan adalah untuk menyediakan alternatif kepada kanak-kanak untuk mempelajari jawi dalam persekitaran yang menggembirakan. Ini diharapkan dapat menarik minat kanak-kanak mempelajari Jawi serta seterusnya mengurangkan bilangan kanak-kanak yang ‘buta Jawi’. Sistem ini akana memudahkan kanak-kanak mempelajari cara-cara mengeja dan menulis Jawi menggunakan pendekatan kaedah grafik dan audio serta animasi menarik. Sistem ini akan dibangunkan menggunakan model GUIDE dengan pendekatan Interaksi Komputer Manusia (Human Computer Interaction). Perisian utama yang digunakan membangunkan sistem adalah Macromedia …
Tourist Information System, Chi Kee Wong
Tourist Information System, Chi Kee Wong
Student Works (2000-2009)
The Objective of WXES 3181 is to make a report and proposal of the thesis project. This is part of the thesis whereas the second half will be focusing on the implementation of project done in WXES 318. This report will therefore, provides an evaluation of the thesis topic, literature review as well as the system analysis and system design of this entire project. According to this thesis title- Tourist Information System is whereby a web based information system will be used by tourists to hel them gain a deeper understanding towards the interest place in Malaysia. Pontential tourists, especially …
Thermogravimetric Studies Of Pmma On Silica, Bing Zhang, Frank D. Blum
Thermogravimetric Studies Of Pmma On Silica, Bing Zhang, Frank D. Blum
Chemistry Faculty Research & Creative Works
The thermal degradation of poly(methyl methacrylate) (PMMA) has been studied extensively. It is well accepted that the degradation process is a radical chain reaction involving initiation, depropagation, transfer, and termination reactions. In the degradation process, the factors having observable effects on the decomposition behavior include molecular mass, polydispersity, tacticity, and sample dimensions. The effects of tacticity on the degradation behavior of PMMA were investigated by Kashiwagi et al., Jellinek et al. And Chiamtore et al. The results indicated that both isotactic and syndiotactic PMMA have similar decomposition pathways and activation energies. Isotactic PMMA will decompose at a slightly lower temperature …
Effect Of Polymer-Surface Mobility On Adhesion In Poly(Methyl Methacrylate)-Tape System, Bhavesh C. Gandhi, Frank D. Blum, Lokeswarappa R. Dharani
Effect Of Polymer-Surface Mobility On Adhesion In Poly(Methyl Methacrylate)-Tape System, Bhavesh C. Gandhi, Frank D. Blum, Lokeswarappa R. Dharani
Chemistry Faculty Research & Creative Works
The interaction between two polymer layers, especially adhesion between them, plays an important role in polymer processing and other applications. Detailed knowledge of the molecular structure and dynamics of polymer interfaces, and how they relate to macroscopic mechanical properties, should help designers construct more functional systems. Unfortunately, there have been few studies where both molecular and macroscopic studies have been performed on similar systems. In previous studies from our group, we have probed the dynamics of poly(methyl acrylate) (PMA) and thermal behavior of poly(methyl methacrylate) (PMMA) on silica. These studies helped us paint a picture for strongly bound molecules on …