Space Elevator

2011 ◽  
pp. 312-331
Author(s):  
Paul E. Nelson
Keyword(s):  
High School ◽  
Cost Saving ◽  
Science Fiction ◽  
Low Cost ◽  
Outer Space ◽  
Daily Basis ◽  
Easy Access ◽  
The World ◽  
Survey Results ◽  
The Cost

Currently, transporting cargo into Outer Space is not only expensive, but a complicated and prolonged process. The Space Shuttles used today are inadequate, overused and obsolete. At this time, there are efforts all around the world to make Space more accessible. There have been many proposals to solve the Space transportation dilemma. One proposal is the creation of a Space Elevator. The Space Elevator would provide low-cost, easy access to Space by dramatically reducing the cost of sending cargo into Space. A $10-$100 per pound the Space Elevator would provide an astounding cost-saving compared to the tens of thousands of dollars per pound it costs today. This low-cost access to Space would make it possible to substantially increase the amount of cargo that could be sent into Space on a daily basis. The first part of this paper describes how the Space Elevator is expected to work, and the advantage of access to space via the SE versus using primarily rockets. A compendium of information from a variety of sources is included in order to explain how the Space Elevator would be designed, constructed, and how it could solve the problems of transporting cargo into Space easily, cheaply, and frequently. The Space Elevator is a relatively new topic in the area of realistic science concepts and was merely science fiction not too long ago. The Space Elevator (“SE”) concept has only been in the spotlight in the last five years due to the work of Dr. Bradley Edwards of Carbon Designs Inc. Acceptance of the SE will be a difficult task for many reasons. One of these is that most people do not know about the SE concept, and those who do, tend to have trouble believing it is possible to build. In order to determine the best way of integrating the SE concept into society, a survey was conducted at Darien High School. The survey included such topics as the naming of "The Space Elevator," and how best to get the younger generation interested in the idea. The second part of this paper describes how to utilize the survey results to further the SE concept.

scholarly journals NanoSen-AQM: From Sensors to Users

2020 ◽  
Vol 16 (04) ◽  
pp. 51
Author(s):  
Pedro Lucas ◽  
Jorge Silva ◽  
Filipe Araujo ◽  
Catarina Silva ◽  
Paulo Gil ◽  
...  
Keyword(s):  
Air Quality ◽  
Low Cost ◽  
Sensor Data ◽  
Quality Data ◽  
Easy Access ◽  
The Public ◽  
Nano Sensors ◽  
The Cost ◽  
Air Quality Data ◽  
Monitoring Platform

With the raising of environmental concerns regarding pollution, interest in monitoring air quality is increasing. However, air pollution data is mostly originated from a limited number of government-owned sensors, which can only capture a small fraction of reality. Improving air quality coverage in-volves reducing the cost of sensors and making data widely available to the public. To this end, the NanoSen-AQM project proposes the usage of low-cost nano-sensors as the basis for an air quality monitoring platform, capa-ble of collecting, aggregating, processing, storing, and displaying air quality data. Being an end-to-end system, the platform allows sensor owners to manage their sensors, as well as define calibration functions, that can im-prove data reliability. The public can visualize sensor data in a map, define specific clusters (groups of sensors) as favorites and set alerts in the event of bad air quality in certain sensors. The NanoSen-AQM platform provides easy access to air quality data, with the aim of improving public health.

scholarly journals Proposal for Modular Precast Bulk Warehouse for Brazilian Agricultural Frontier Farms

2020 ◽  
Vol 8 (11) ◽  
pp. 345-359
Author(s):  
Jose Roberto Rasi ◽  
Roberto Bernardo ◽  
Wellington Mazer ◽  
Jorge Augusto Serafim ◽  
Luís Augusto Bachega
Keyword(s):  
Storage Capacity ◽  
Low Cost ◽  
Precast Concrete ◽  
Storage System ◽  
Transport Infrastructure ◽  
Agricultural Product ◽  
Agricultural Frontier ◽  
Low Weight ◽  
The World ◽  
The Cost

Brazil is one of the largest agribusiness producers in the world, however, Brazilian competitiveness is impaired when the agricultural product, at lower costs, reaches its destination at higher costs than global competitors due to the deficiency of the grain storage system and transport infrastructure. A viable alternative is the construction of a storage silo on the rural property, with low-cost prefabricated parts that can be transferred to other locations, with easy demobilization and assembly, if necessary. This paper has the objective to design a precast concrete silo with low weight, modular, structurally analyzed by the SAP 2000 V20 software, and presented the cost estimated at 15.6% of the cost of a conventional precast bulk silo, with the same storage capacity.

scholarly journals The reliance of the Jordanian daily newspapers on the Jordan News Agency as the main source of news and its impact on content

2021 ◽  
Vol 58 (2) ◽  
pp. 4776-4790
Author(s):  
Dr. Majid numan Al-Khudari, Dr.muhamad lamel al_quraan , Dr. Ashraf Faleh Al-Zoubi,
Keyword(s):  
Low Cost ◽  
Easy Access ◽  
Survey Method ◽  
Daily Newspapers ◽  
News Agency ◽  
News Agencies ◽  
The World ◽  
The Media ◽  
The Government ◽  
Global And Local

Since the emergence of news agencies in the world, these agencies have become part of the global and local media scene, and newspapers cannot dispense with the services provided by agencies, especially the major news agencies in the world, which are the French Sons Agency, the British Sons Agency, the two American news agencies, the Associated Press and the United Press, as these agencies have become It controls the flow of news across the world, and newspapers prefer to rely on them for news due to the low cost and easy access to news. In Jordan, like other countries of the world, the media relies heavily on news agencies to obtain news, as major news agencies are relied upon to obtain international and Arab news, while the Jordanian Sons Agency "Petra" is relied upon to obtain local news. The Jordanian News Agency dominates the Jordanian newspapers that publish the news issued by this agency, which is considered the official and only official agency in the Hashemite Kingdom of Jordan. This agency focuses on publishing official news, especially news issued by the royal court, the presidency of the government and other official institutions, as there is almost a monopoly on these news. By the agency that provides its services to Jordanian newspapers, Jordanian news sites, and radio and television stations for free. This study is classified within descriptive research, and the researcher relied on the survey method. Three Jordanian daily newspapers were tracked, namely Al-Rai, Al-Dustur, and Al-Ghad. All news published in these three newspapers were scanned for a period of fifteen days. The study revealed that 38% of the news published in these newspapers Extracted from Jordan News Agency The study also found that the three daily newspapers under consideration depend heavily on the Jordan News Agency for news This makes the relationship between agencies and newspapers almost completely dependent.  

A Preliminary Study of the Dynamic and Control of the Solar Sail

2014 ◽  
Vol 590 ◽  
pp. 371-375
Author(s):  
Ximena Celia Méndez Cubillos ◽  
Rute Cardoso Drebes
Keyword(s):  
Low Cost ◽  
Outer Space ◽  
Solar Sail ◽  
Enabling Technology ◽  
Solar Sails ◽  
Major Objective ◽  
Preliminary Study ◽  
Human Desire ◽  
The Cost ◽  
And Control

The research and curiosity about outer space had been always constant. Looking for others planets, ways, civilizations wherever the exploration of the space will be a thing which the human desire. The challenge here for several years was the obtaining energy sufficient for the application of the missions. So, presently the major objective in the missions is offer more autonomy to the spacecrafts and consequently to lower the cost of the missions. Solar Sails have long been envisaged as an enabling technology because is a promising low-cost option for space exploration for it uses for propulsion an abundant resource in space: solar radiation. In this paper a simple model of solar sail is shown and studied your performance of Control System.

scholarly journals The Costs of Producing Biodiesel from Microalgae in the Asia-Pacific Region

2013 ◽  
Vol 2 (3) ◽  
pp. 105-113 ◽  
Author(s):  
G.J. Griffin ◽  
D.F. Batten ◽  
T. Beer ◽  
P.K. Campbell
Keyword(s):  
Low Cost ◽  
Operating Cost ◽  
Asia Pacific ◽  
Pacific Region ◽  
Asia Pacific Region ◽  
Cost Estimates ◽  
The World ◽  
Resource Availability Cost ◽  
The Cost ◽  
High Degree

Capital and operating cost estimates for converting microalgae to oil or biodiesel are compared. These cost comparisons are based on Australian locations, which are expected to fall at the lower end of the cost spectrum in the Asia-Pacific Region and other parts of the world.  It is assumed that microalgae are grown in a concentrated saltwater medium in raceway ponds, then are harvested, dewatered and the oil is extracted and converted to biodiesel by transesterification. The size of the desired pond system affects the number of potential locations due to constraints in resource availability. Cost estimates vary significantly due to differences in the assumed oil productivity, the harvesting equipment and the method of converting residual biomass to electric power. A comparison is made with recent cost estimates from other parts of the world, in which the expected costs of microalgae oil production from a number of publicly available sources lay between 0.34–31.0 USD/L.  The resulting cost estimates of between 1.37—2.66 USD/L are at the lower end of this scale, thereby confirming that Australia has the potential to be a low-cost producer of algal oil and biodiesel in the Asia-Pacific Region.  It was significant that, despite similar assumptions for the microalgae-to-oil process, cost estimates for the final biodiesel or oil price differed by a factor of 2.  This highlights the high degree of uncertainty in such economic predictions. Keywords: Asia-Pacific region; biodiesel; economics; microalgaeThis article is cited as :Griffin, G., Batten, D., Beer, T., & Campbell, P. (2013). The Costs of Producing Biodiesel from Microalgae in the Asia-Pacific Region. International Journal Of Renewable Energy Development (IJRED), 2(3), 105-113. doi:10.14710/ijred.2.3.105-113Permalinkhttp://dx.doi.org/10.14710/ijred.2.3.105-113

scholarly journals Wireless Sensor Networks for Monitoring Indian Railways Trains

2020 ◽  
Vol 8 (6) ◽  
pp. 2579-2583
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Environmental Conditions ◽  
Simple Technique ◽  
Low Cost ◽  
Daily Basis ◽  
Wireless Sensor ◽  
Rail Network ◽  
The World ◽  
Time Basis

Indian Railways has the largest rail network in the world and is also responsible for transferring millions and millions of passengers on a daily basis. But it has obtained the reputation of being accident prone. Consequently the safety record of Indian Railways is very low. Many factors affect the safety of the trains in Indian Railways. Major environmental conditions, geographical conditions and the conditions of the driver's driving the trains are all factors which contribute towards accidents. Along with these conditions the track conditions and the asset conditions also contribute towards accidents. This paper presents a simple technique to reduce accidents in Indian Railways as well as monitor the train on a real time basis with very low cost application

scholarly journals Design, fabrication and testing of banana fibre extraction machine

2019 ◽  
Vol 2 (1) ◽  
pp. 165-173
Author(s):  
Sachin Poudel ◽  
Sushil Chapai ◽  
Raj Kumar Subedi ◽  
Tark Raj Giri ◽  
Sunil Adhikari
Keyword(s):  
Production Efficiency ◽  
Low Cost ◽  
Fibre Production ◽  
Agricultural Products ◽  
Combined Application ◽  
The World ◽  
Banana Fibre ◽  
Long Time ◽  
The Cost ◽  
Operation Cost

Banana (Musa paradisiacal L) is the fourth most important crop in the world after rice, wheat and maize. Banana cultivation in Nepal is more popular like other agricultural products and has annual fibre production of about 1,977 tons. The thick, fleshy and fibrous pseudo stems that are left over after harvesting the bananas can be used to extract high quality fibre. Farmers usually throw away this whole stump because it is big and heavy and takes a long time to rot and the animals do not eat it. The cost of importing extraction machine from other country is expensive. The research and development of such machine with low cost, which ultimately provides opportunity of local entrepreneurship to farmers and helps in proper utilization of agricultural management, was felt necessary. The developed machine from this project, uses combined application of roller and a decorticator for fibre extraction. The machine can extract fibre from 1,648 Kg of input which is about 100-160 banana pseudostem. The fibre production obtained was 54 Kg per day with NRS. 11 operation cost per 1 Kg of fibre. The production efficiency in comparison to available commercial machine is 180 %.

Electricity Production from Small-Scale Photovoltaics in Urban Areas

2015 ◽  
pp. 124-161
Author(s):  
Constantinos S. Psomopoulos ◽  
George Ch. Ioannidis ◽  
Stavros D. Kaminaris
Keyword(s):  
Urban Areas ◽  
Low Cost ◽  
Electricity Production ◽  
Small Scale ◽  
Production Data ◽  
Solar Photovoltaic ◽  
Pv System ◽  
The World ◽  
The Cost ◽  
Utility Scale

The interest in solar photovoltaic energy is growing worldwide. Today, more than 40GW of photovoltaics have been installed all over the world. Since the 1970s, the PV system price is continuously dropping. This price drop and the adaptation of feed-in tariffs at governmental or utility scale have encouraged worldwide application of small-scale photovoltaic systems. The objective of this chapter is to present the potential for electricity production focusing mainly on the benefits of small-scale installations in urban areas, along with the growth of the global photovoltaics market. The types of installation alternatives are described but the focus is on the rooftop installations due to their simplicity and relatively low cost for urban areas. Electricity production data are presented together with their technical characteristics. Furthermore, analysis of the cost reduction is attempted and the benefits gained from the implementation of small-scale systems are also presented, demonstrating the sustainability role they will play.

The Impact of Technology on Winter Sport Tourism

2015 ◽  
Author(s):  
Dr. Simon Hudson ◽  
Louise Hudson
Keyword(s):  
New Media ◽  
Science Fiction ◽  
Think Tank ◽  
Media Technologies ◽  
The World ◽  
Realistic View ◽  
Cereal Boxes ◽  
Impact Of Technology ◽  
The Cost ◽  
Traditional Approaches

We are witnessing a rapidly changing communications environment dominated by digital technology. To illustrate how quickly technology is advancing, take the example of Steven Spielberg’s sci-fi thriller Minority Report. In 1999, the director convened a three-day think tank to gather insights from 23 top futurists for the making of the movie, which depicted the world of 2054. The goal was to create a realistic view of a plausible future 50 years ahead. Projecting out from the present day’s marketing and media technologies, Spielberg depicted an advertising-saturated society where billboards call out to passers-by on a first-name basis, cereal boxes broadcast animated commercials, newspapers deliver news instantly over a broadband wireless network, holographic hosts greet customers by name at retail stores, and where biometric retina scans deduct the cost of goods instantly from bank accounts (Mathieson, 2002). The technologies portrayed in the film were far from science fiction, and today many are in use or are in development – an indication of the rapid pace of technological change. Technology and the Internet have fundamentally altered the way the world interacts and communicates. Traditional approaches to branding that put emphasis on mass media techniques are less and less effective in a marketplace where customers have access to massive amounts of information about brands, product and companies and in which social networks have, in some cases, supplanted brand networks (Keller, 2009). In the new media environment, consumers are increasingly in control. Not only do they have more choices of media to use, they also have a choice about whether and how they want to receive commercial content. In response marketers are employing more varied marketing communications techniques than ever before – see the Powder Matt Snapshot above for examples. Table 1 summarizes some of the interactive marketing communication options that are now available.

scholarly journals Effects of Propolis on Infectious Diseases of Medical Relevance

Biology ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 428
Author(s):  
Nelly Rivera-Yañez ◽  
C. Rebeca Rivera-Yañez ◽  
Glustein Pozo-Molina ◽  
Claudia F. Méndez-Catalá ◽  
Julia Reyes-Reali ◽  
...  
Keyword(s):  
Infectious Diseases ◽  
Low Cost ◽  
Emerging Diseases ◽  
Easy Access ◽  
Economic Stability ◽  
The Public ◽  
New Therapies ◽  
Alternative And Complementary Medicine ◽  
The World ◽  
Medical Relevance

Infectious diseases are a significant problem affecting the public health and economic stability of societies all over the world. Treatment is available for most of these diseases; however, many pathogens have developed resistance to drugs, necessitating the development of new therapies with chemical agents, which can have serious side effects and high toxicity. In addition, the severity and aggressiveness of emerging and re-emerging diseases, such as pandemics caused by viral agents, have led to the priority of investigating new therapies to complement the treatment of different infectious diseases. Alternative and complementary medicine is widely used throughout the world due to its low cost and easy access and has been shown to provide a wide repertoire of options for the treatment of various conditions. In this work, we address the relevance of the effects of propolis on the causal pathogens of the main infectious diseases with medical relevance; the existing compiled information shows that propolis has effects on Gram-positive and Gram-negative bacteria, fungi, protozoan parasites and helminths, and viruses; however, challenges remain, such as the assessment of their effects in clinical studies for adequate and safe use.

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