67 research outputs found
ANALYSIS OF DATA & COMPUTER NETWORKS IN STUDENTS' RESIDENTIAL AREA IN UNIVERSITI TEKNOLOGI PETRONAS
In Universiti Teknologi Petronas (UTP), most of the students depend
on the Internet and computer network connection to gain academics information and
share educational resources. Even though the Internet connections and computers
networks are provided, the service always experience interruption, such as slow
Internet access, viruses and worms distribution, and network abuse by irresponsible
students. Since UTP organization keeps on expanding, the need for a better service in
UTP increases. Several approaches were put into practice to address the problems.
Research on data and computer network was performed to understand the network
technology applied in UTP. A questionnaire forms were distributed among the
students to obtain feedback and statistical data about UTP's network in Students'
Residential Area. The studies concentrate only on Students' Residential Area as it is
where most of the users reside. From the survey, it can be observed that 99% of the
students access the network almost 24 hours a day. In 2005, the 2 Mbps allocated
bandwidth was utilized 100% almost continuously but in 2006, the bottleneck of
Internet access has reduced significantly since the bandwidth allocated have been
increased to 8 Mbps. Server degradation due to irresponsible acts by users also adds
burden to the main server. In general, if the proposal to ITMS (Information
Technology & Media Services) Department for them to improve their Quality of
Service (QoS) and established UTP Computer Emergency Response Team (UCert),
most of the issues addressed in this report can be solved
ANALYSIS OF DATA & COMPUTER NETWORKS IN STUDENTS' RESIDENTIAL AREA IN UNIVERSITI TEKNOLOGI PETRONAS
In Universiti Teknologi Petronas (UTP), most of the students depend
on the Internet and computer network connection to gain academics information and
share educational resources. Even though the Internet connections and computers
networks are provided, the service always experience interruption, such as slow
Internet access, viruses and worms distribution, and network abuse by irresponsible
students. Since UTP organization keeps on expanding, the need for a better service in
UTP increases. Several approaches were put into practice to address the problems.
Research on data and computer network was performed to understand the network
technology applied in UTP. A questionnaire forms were distributed among the
students to obtain feedback and statistical data about UTP's network in Students'
Residential Area. The studies concentrate only on Students' Residential Area as it is
where most of the users reside. From the survey, it can be observed that 99% of the
students access the network almost 24 hours a day. In 2005, the 2 Mbps allocated
bandwidth was utilized 100% almost continuously but in 2006, the bottleneck of
Internet access has reduced significantly since the bandwidth allocated have been
increased to 8 Mbps. Server degradation due to irresponsible acts by users also adds
burden to the main server. In general, if the proposal to ITMS (Information
Technology & Media Services) Department for them to improve their Quality of
Service (QoS) and established UTP Computer Emergency Response Team (UCert),
most of the issues addressed in this report can be solved
Transferring big data across the globe
Transmitting data via the Internet is a routine and common task for users today. The amount of data being transmitted by the average user has dramatically increased over the past few years. Transferring a gigabyte of data in an entire day was normal, however users are now transmitting multiple gigabytes in a single hour. With the influx of big data and massive scientific data sets that are measured in tens of petabytes, a user has the propensity to transfer even larger amounts of data. When transferring data sets of this magnitude on public or shared networks, the performance of all workloads in the system will be impacted.
This dissertation addresses the issues and challenges inherent with transferring big data over shared networks. A survey of current transfer techniques is provided and these techniques are evaluated in simulated, experimental and live environments. The main contribution of this dissertation is the development of a new, nice model for big data transfers, which is based on a store-and-forward methodology instead of an end-to-end approach. This nice model ensures that big data transfers only occur when there is idle bandwidth that can be repurposed for these large transfers. The nice model improves overall performance and significantly reduces the transmission time for big data transfers. The model allows for efficient transfers regardless of time zone differences or variations in bandwidth between sender and receiver. Nice is the first model that addresses the challenges of transferring big data across the globe
Marshall Space Flight Center Faculty Fellowship Program
The 2017 Marshall Faculty Fellowship Program involved 21 faculty in the laboratories and departments at Marshall Space Flight Center. These faculty engineers and scientists worked with NASA collaborators on NASA projects, bringing new perspectives and solutions to bear. This Technical Memorandum is a compilation of the research reports of the 2017 Marshall Faculty Fellowship program, along with the Program Announcement (Appendix A) and the Program Description (Appendix B). The research affected the following six areas: (1) Materials (2) Propulsion (3) Instrumentation (4) Spacecraft systems (5) Vehicle systems (6) Space science The materials investigations included composite structures, printing electronic circuits, degradation of materials by energetic particles, friction stir welding, Martian and Lunar regolith for in-situ construction, and polymers for additive manufacturing. Propulsion studies were completed on electric sails and low-power arcjets for use with green propellants. Instrumentation research involved heat pipes, neutrino detectors, and remote sensing. Spacecraft systems research was conducted on wireless technologies, layered pressure vessels, and two-phase flow. Vehicle systems studies were performed on life support-biofilm buildup and landing systems. In the space science area, the excitation of electromagnetic ion-cyclotron waves observed by the Magnetospheric Multiscale Mission provided insight regarding the propagation of these waves. Our goal is to continue the Marshall Faculty Fellowship Program funded by Center internal project offices. Faculty Fellows in this 2017 program represented the following minority-serving institutions: Alabama A&M University and Oglala Lakota College
Optoelectronics – Devices and Applications
Optoelectronics - Devices and Applications is the second part of an edited anthology on the multifaced areas of optoelectronics by a selected group of authors including promising novices to experts in the field. Photonics and optoelectronics are making an impact multiple times as the semiconductor revolution made on the quality of our life. In telecommunication, entertainment devices, computational techniques, clean energy harvesting, medical instrumentation, materials and device characterization and scores of other areas of R&D the science of optics and electronics get coupled by fine technology advances to make incredibly large strides. The technology of light has advanced to a stage where disciplines sans boundaries are finding it indispensable. New design concepts are fast emerging and being tested and applications developed in an unimaginable pace and speed. The wide spectrum of topics related to optoelectronics and photonics presented here is sure to make this collection of essays extremely useful to students and other stake holders in the field such as researchers and device designers
Technology 2000, volume 1
The purpose of the conference was to increase awareness of existing NASA developed technologies that are available for immediate use in the development of new products and processes, and to lay the groundwork for the effective utilization of emerging technologies. There were sessions on the following: Computer technology and software engineering; Human factors engineering and life sciences; Information and data management; Material sciences; Manufacturing and fabrication technology; Power, energy, and control systems; Robotics; Sensors and measurement technology; Artificial intelligence; Environmental technology; Optics and communications; and Superconductivity
Европейский и национальный контексты в научных исследованиях
В настоящем электронном сборнике «Европейский и национальный контексты в научных исследованиях. Технология» представлены работы молодых ученых по геодезии и картографии, химической технологии и машиностроению, информационным технологиям, строительству и радиотехнике. Предназначены для работников образования, науки и производства. Будут полезны студентам, магистрантам и аспирантам университетов.=In this Electronic collected materials “National and European dimension in research. Technology” works in the fields of geodesy, chemical technology, mechanical engineering, information technology, civil engineering, and radio-engineering are presented. It is intended for trainers, researchers and professionals. It can be useful for university graduate and post-graduate students
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