Aerospace Engineering Commons^™

Technological Issues: A Day In The Life Of A Satcom Engineer In Nigeria, Andy Hope

Online Journal of Space Communication

The day began early, like all African days.

Technological Issues: The Citizen Initiated Performance Assessment (Cipa) Initiative Through Wireless Technology, William Stowe

Online Journal of Space Communication

Many governments, including my own that serves a population of about 200,000 Central Iowans, have been reluctant to invest in technologies supporting e-government services. The operating assumption for this reluctance is that the "digital divide" delivers the benefits of e-government to the wealthiest and often most educated citizens, effectively diverting resources to constituencies traditionally less reliant on government services than the poor who are often left on the down side of the "digital divide". While "digital divide" considerations are and should continue to be a focal point in deciding allocation of scarce financial resources supporting technological improvements, reallocation of resources …

Technological Issues: Closing The Digital Divide Through Resource Allocation Techniques, Avi Barda, Zvi Ner, Shaul Laufer

Online Journal of Space Communication

It is only after access to technology is assured that computer literacy can begin. Access is not simply having access to up-to-date technology; it should also include access to qualified teachers, appropriate software and Web content. Vital to this issue is the quality and quantity of the access.

The optimisation of the bandwidth use, obtained by implementing bandwidth allocation schemes and suited protocol solutions, will allow providing improved quality of service and reduced cost of broadband Internet access. This technology will allow the provision of QoS-based broadband services in hazardous environments and in areas where the technological development is less …

Social And Cultural Issues: The Impact Of Digital Divide On Development And How Satellite Addresses This Problem, Robin Gambu Wani Latio

Online Journal of Space Communication

The paper examines the problem of inaccessibility to education by the vast majority in East Africa, the factors that contribute to education problems and how the digital divide further helps isolate people in the rural communities of the region.

The author proposes satellite technology as the solution to the digital divide and offers reasons to support this proposition. Technology use in Uganda is discussed as a case study to provide further evidence that satellite communications help close the digital divide gap.

Social And Cultural Issues: Information And Communication Technology Policy In Mongolia, Lkhagvasuren Ariunaa

Online Journal of Space Communication

In the networking age, every country needs the capacity to understand and adjust global technologies for local needs. In the mid-seventies, the Government of Mongolia was giving much emphasis to science and technology information, having State Committee on Science and Technology and research institutions underneath.

The main purpose of the State Committee was to focus on the provision of the science and technology information mainly received from academic institutions of former Soviet Union and socialist system countries. A number of the policy regulatory documents were developed to address the issues of the science and technology information.

Social And Cultural Issues: The Digital Divide In The Gobi Desert: Spatiality, The National Identity Collapse, And A Language Gap, Undrahbuyan Basaanjav

Online Journal of Space Communication

No research has been conducted to examine how people in the countryside of Mongolia use the Internet and what social and cultural influences the Internet bring to these people. This study focuses on the geographical and cultural aspects of the digital divide in the Gobi desert of Mongolia. In this paper, I argue that the Internet brings a sense of mobility to people in remote Mongolia, which lets them move through social spaces. In the Gobi Desert the Internet has begun to break the geo-spatial notion of local vs. global. People in the Gobi Desert already use instant and mobile …

Social And Cultural Issues: Social, Cultural And Economic Issues In The Digital Divide - Literature Review And Case Study Of Japan, Shuho Otani

Online Journal of Space Communication

The definition of the digital divide generally refers to unequal access to digital and network resources, including the Internet, and opportunities to learn using information and communication technologies. The gaps are usually concerned with economic, social and cultural issues, such as income, age, education, gender, ethnic background, and physical handicaps.

Current Development: Domestic Satellites Make Indonesia A Model Of Telecommunications Development, Saleh Gunawan

Online Journal of Space Communication

Our Palapa A Domestic Satellite System, named for a mythical fruit, was inaugurated on August 17, 1976, almost 30 years ago, and it was surprising how quickly our nation started enjoying the ease and speed of telephone connections from an affordable high quality direct distance dialed network. Prior to this, Indonesian inter-island public telecommunications were served mainly by way of High Frequency radio. Dependence on the ionosphere limited connections to a few hours a day. In addition to poor capacity and quality, anyone wanting to place a call had to make prior booking through human operators.

Current Development: Soiasia Project: A New And Effective Distance Learning Environment For Internet Developing Area Utilizing The Satellite Link, Shoko Mikawa, Jun Takei

Online Journal of Space Communication

This paper describes a distance learning environment using the Internet via satellite in Asian regions where Internet infrastructure is insufficient. The merit of distance learning is that students can receive cutting edge lectures from professors all over the world. For those areas with sufficient Internet infrastructure, there would be no problem receiving these kinds of lectures. However, it is difficult for countries with insufficient Internet infrastructure to receive them. The SOI (School of Internet) ASIA project proposes and demonstrates a distance learning environment utilizing satellite links as an Internet infrastructure that can be quickly installed with low cost for those …

Current Development: How One Faith-Based Organization Uses Satellite Technology To Bridge The Digital Divide, Jeffrey B. Roberts

Online Journal of Space Communication

From its founding in 1830, the Church of Jesus Christ of Latter-day Saints has endeavored to fulfill the divine command to "Go ye into all the world, and preach the gospel to every creature." Proclaiming the gospel of Jesus Christ throughout the world remains a daunting challenge even in modern times. How does a religious organization preach its doctrine to people of all nations, race, cultures, etc? How does it support its growing membership and provide the necessary training for new members and new leaders? How does it assure that its teachings remain consistent around the world? How does it …

Current Development: The Digital Divide - An Appalachian Ohio Perspective, John C. Hoag

Online Journal of Space Communication

The objective of this paper is to assess the role of satellite communication with respect to the Digital Divide in the United States. A secondary objective is to review the capabilities, capacity, and availability of current solutions in light of potential applications in other markets and situations.

This paper contains a review of the Digital Divide in general with additional attention to local Ohio developments and the use of satellite broadband Internet service. We then discuss different satellite-based solutions for residential and commercial Internet access.

Current Development: Satellite Newsgathering Crosses The Digital Divide, Eli Flournoy

Online Journal of Space Communication

Current developments in news gathering.

Current Development: Learning Without Boundary: Application Of Satellite Communication System On Distance Education, Hsin-Ho Tsao

Online Journal of Space Communication

Nowadays, the concept of global village has been developed over the world due to the development of communication technology. The information boundaries between areas and regions are gradually eliminated. People are able to have long-distance communication and information exchange, such as searching information via the Internet and making long distance calls that include images. The convenience of communication brought by the technology is applied to education as well.

Issue 5: From The Guest Editor, Bruce Elbert

Online Journal of Space Communication

This issue of the Online Journal of Space Communication focuses on a matter of social concern for which satellite technology is well-positioned to help overcome traditional communication limitations of terrain and distance. Literally the entire globe is within the reach of one satellite system or another, making it possible to extend telephone, television, radio, data and Internet communications to every corner and everybody.

Bibliometric Analysis On Artificial Compressibility Method Based Cfd Simulations, Bhavna Hemraj Joshi Miss, Chandrakant R. Sonawane Dr, Priyambada Bada Praharaj Mrs, Anand Kumar Pandey Dr

Library Philosophy and Practice (e-journal)

This bibliometric analysis in this paper aims to study the quantitative progress done in the artificial compressibility (AC) method-based CFD simulation and analyze its potential in solving incompressible flow simulations in computational fluid dynamics smoothly. The sector of CFD is enhancing more and more maturely due to advancements in computing architecture, numerical methods, and simulation tools. There have been various attempts to solve the pressure-velocity coupling issue in the Navier-Stokes equation. The artificial compressibility method (ACM), as opposed to pressure-correction methods, solves the incompressible equation in a non-segregated manner. With the introduction of the ACM, the system of the equation …

Nasa Micro-G Next Challenge: Sample Container Dispensing Device, Kristin G. Kraybill-Voth, Kelsey L. Mickelson, Oscar D. Popravka

Mechanical Engineering

This Final Design Review (FDR) report outlines a Cal Poly San Luis Obispo senior design project developing a sample container dispensing device for NASA Johnson Space Center’s Micro-g NExT design challenge, a competition for university students. NASA aims to bring the first woman and next man to the moon through the Artemis missions beginning in 2024. The Micro-g NExT 2021 challenges focus on developing equipment which will support the Artemis mission, where Astronauts will conduct extensive geological sampling to further the scientific understanding of the moon. Our team designed, built, and tested a device that holds sample bags as they …

Analytical, Numerical, And Computational Methods To Analyze The Time To Empty Open, Closed, And Variable-Topped Inverted Bottles, Callen Schwefler

Master's Theses

Recent unexpected experimental observations of the emptying of inverted bottles with perforations has generated interest in modeling and simulation of this phenomenon. It was observed that as a perforation, i.e., a small hole at the "top" of the inverted bottle, is added and enlarged, the overall emptying time first increases to a maximum value and then decreases until it reaches a lower limit. The change in emptying time is associated with a transition from jetting, where only water exits the neck, to glugging, a competition between air and water flows at the neck of the bottle.

This paper develops analytical …

A Flat Plate Skin Friction Correlation Including Transition, Jaret M. Wedow

Master's Theses

Many existing boundary layer models treat transition as a rapid switch from laminar to turbulent flow, with correlations defining properties in each respective region. Natural transition, however, is not always a very spanwise uniform process, with the onset of transition varying somewhat between different streamwise paths of fluid flow. Thus, a spanwise average of natural transition can result in a more gradual, extended transition region than many existing models predict. Modern applications, such as aircraft wings and fuselages, are extremely streamlined and smooth, allowing for natural transition to occur rather than flow tripping to turbulent near the leading edge. Under …

Development Of A Cubesat Conceptual Design Tool And Implementation Of The Eps Design Module, Sean K. Nogrady

Master's Theses

This thesis is the product of an effort to develop a CubeSat Conceptual Design Tool for the California Polytechnic State University CubeSat Laboratory. Such a tool is necessary due to inefficiencies with the current conceptual design process. It is being developed to increase accessibility, reduce design time, and promote good systems engineering within CubeSat development.

The development of the architecture of a conceptual design tool, the core user-interface element, and the completion of a module for the electrical power subsystem is the focus of this thesis. The architecture is built around different modules to design different subsystems that work in …

Space Suit Attachment Quick Release System, Elyse C. Gillis-Smith, Andres I. Elzaurdia, Cole H. Stanton, Michael T. Roth

Mechanical Engineering

NASA plans to make it back to the Moon by 2024 with their Artemis Program, and stay there for a longer period of time to conduct research which will support the future of space exploration. While on the lunar surface, astronauts need to maximize their efficiency by carrying tools on their Exploration Extravehicular Mobility Unit (xEMU), and to accommodate this need, the Extravehicular Activity (EVA) Tools Team is pursuing a utility belt concept. The objective of this project is to develop a system capable of interfacing between the utility belt and any given tool, while also accommodating numerous restrictions and …