scholarly journals Preliminary project design for insect production: part 4 – facility considerations

2021 ◽  
pp. 1-12
Author(s):  
R. Kok
Keyword(s):  
Low Cost ◽  
Project Design ◽  
New Production ◽  
Building Envelopes ◽  
Disease Evolution ◽  
Project Location ◽  
Clear Idea ◽  
Integrated Or ◽  
Design Construction ◽  
Production Part

At the end of the preliminary project design (PPD) phase an aspiring entopreneur should have a clear idea of the scope and scale of the project being proposed. Hence, during PPD a number of aspects of the facilities must be considered. These are here dealt with in terms of basic questions that should first be answered about the project as a whole; project location issues; to what degree the facility is to be integrated or segregated into different units; what functionality is to be housed within the various building envelopes; and how safety and hygiene concerns can be addressed. As well, three ancillary issues are discussed that may affect facility design, construction and operation: the development of new production organisms that can grow on low-cost feeds; the possibility of disease evolution; and the matter of animal welfare.

scholarly journals Design and construction of low-cost respiration chambers for ruminal methane measurements in ruminants

2017 ◽  
Vol 8 (2) ◽  
pp. 185 ◽  
Author(s):  
Jorge Rodolfo Canul Solis ◽  
Angel Trinidad Piñeiro Vázquez ◽  
Jeyderl Israe Arceo Castillo ◽  
José Alayón Alayón Gamboa ◽  
Armín Javier Ayala Burgos ◽  
...  
Keyword(s):  
Methane Production ◽  
Low Cost ◽  
Bos Indicus ◽  
Mass Action ◽  
Pennisetum Purpureum ◽  
Air Conditioner ◽  
Tropical Regions ◽  
In Vivo Measurement ◽  
Design Construction

ABSTRACTRuminant animals contribute significantly to methane emissions in tropical regions. Nonetheless, there are few facilities available in those regions of the world for in vivo measurement of methane production in cattle. The aim of the present work was to describe the design, construction and operation of respiration chambers for in vivo measurement of methane production in cattle in Mexico. Locally available materials were used in the construction. Walls, roof and doors were constructed of thermic panels with two windows of acrylic at the front so the animal can be observed at all times. Chambers have an air volume of 9.97 m3. Air is drawn from the chamber at a rate of 500 L/min by the effect of mass action flow generators. Methane was measured in air samples with an infrared analyzer. Chambers operate under a slight negative pressure of around -500 Pa. Air temperature inside the chambers is kept at 23 °C with an air conditioner, while relative humidity is maintained at 55 % with a dehumidifier. Functioning of the chambers was evaluated in Bos indicus, Nelore cattle fed Taiwan grass (Pennisetum purpureum) and a concentrate (18 % crude protein), and measurements were made during runs of 23 h duration. Methane production was on average 173.2 L per day, while the emission factor was 17.48 L methane per kilogram o dry matter consumed. It concludes that this respiration facility is capable of measuring methane production accurately in cattle fed tropical rations.

The Cogito Project: Design and Development of an International C-Class Catamaran and Her Successful Challenge to Regain the Little America’s Cup

2000 ◽  
Vol 37 (04) ◽  
pp. 163-184
Author(s):  
Duncan T. MacLane
Keyword(s):  
United States ◽  
Rhode Island ◽  
The United States ◽  
Project Design ◽  
Design And Development ◽  
Yacht Club ◽  
America’S Cup ◽  
Yellow Pages ◽  
The U.S ◽  
Design Construction

In January 1996, Cogito, the U.S. challenger, defeated the Australian defender, Yellow Pages Edge, by the score of 4–0 in the 22nd running of the International Catamaran Challenge Trophy. This brought the trophy, better known as the Little America's Cup, back to the United States after an eleven-year stay in Australia. The Cogito project was three years in length and encompassed the design/construction phase, initial sailing and tuning at her home, the Bristol Yacht Club in Bristol, Rhode Island, and the final training and competition at the race venue, McCrae Yacht Club on Port Philip Bay south of Melbourne, Australia. This paper will cover all phases of the project from the design through the racing.

Weather Nowcasting Using Environmental Sensors Integrated to the Mobile

2012 ◽  
pp. 183-203 ◽  
Author(s):  
K.G. Srinivasa ◽  
Harsha R ◽  
Kumar N. Sunil ◽  
Arhatha B ◽  
S.C. Abhishek ◽  
...  
Keyword(s):  
New Media ◽  
Mobile Devices ◽  
Mobile Device ◽  
Focal Point ◽  
Low Cost ◽  
Weather Forecast ◽  
Environmental Sensors ◽  
Grid Networks ◽  
Weather Parameters ◽  
Integrated Or

With the vagaries of nature being unpredictable, it’s now more important to have access to weather forecast for short periods of time. Many businesses, including those in agriculture and the fishing industry, depend on an hourly update of the weather. The access to such weather nowcasting data has, until now, been through traditional media like the television, radio, et cetera, while new media of communication such as mobile devices, have been largely unexplored. The advancement in MEMS (Micro Electrical Mechanical System) technology has now brought forth various sensors that are miniaturized and can be integrated or embedded into various other systems used presently. Environmental sensors that measure weather parameters are miniaturized to fit the size of a mobile. The system aims to integrate these sensors along with a mobile device so as to provide the capability of data measurement to the vast population that use mobile devices and thus create regional grid networks. The system aims to use the mobile for updating weather parameters as well to be the focal point of communication of the weather nowcasting information. As a result, the mobile device would provide targeted distribution of the weather information, which is more advantageous than the traditional means of mass distribution of information; also, as mobile technology acts as a focal point of gathering weather related parameters, it provides a twofold advantage for setting up a low cost, region specific weather monitoring system.

Enhancing Student Understanding of Packet-Forwarding Theories and Concepts with Low-Cost Laboratory Activities

2011 ◽  
pp. 101-118
Author(s):  
Anthony P. Kadi
Keyword(s):  
Undergraduate Students ◽  
Teaching And Learning ◽  
Low Cost ◽  
Learning Theories ◽  
Packet Forwarding ◽  
Critical Component ◽  
Abstract Concepts ◽  
Simple Task ◽  
Learning Framework ◽  
Clear Idea

Teaching packet-forwarding theories and concepts in a practical way to undergraduate students requires both a teaching and learning framework and a laboratory infrastructure. Creating a teaching and learning framework in which students can develop a deeper knowledge and understanding of abstract concepts is not a simple task. In addition to teaching materials, the teacher requires a clear idea about learning theories and issues: (1) what is learning; (2) what is knowledge; and (3) how do students go about learning. This chapter describes a low-cost laboratory infrastructure for teaching and learning packet-forwarding theories and concepts. The framework is learner-centred and is focused on learning experiences in both classroom and laboratory. The laboratory-based activities form a critical component of the overall framework.

scholarly journals Risk analysis in the spillway of dam Orós by excess of influent flow

2013 ◽  
Vol 85 (1) ◽  
pp. 405-414 ◽  
Author(s):  
Adbeel Goes Filho
Keyword(s):  
Risk Analysis ◽  
Water Level ◽  
Project Design ◽  
Practical Application ◽  
Original Design ◽  
Empirical Formulas ◽  
Design Data ◽  
Influent Flow ◽  
Design Construction

This paper presents the practical application of concepts, and some methods of risk analysis, to check the possibility of overcoming a water level of project in the spillway of dam Orós, by excess of influent flow. Also evaluated the empirical formulas contained in the original design. Due to the difficulty of obtaining design data from the dam, since the end of construction date of January, 11, 1961, we minimize the effects of some variables in the calculations, leading us to the consequent simplification of the scenario under study. For a better evaluation and characterization of the setting, some variables in the model such as water level, accumulation and flow of the spillway, had updated their data to June 28, 2011. We have demonstrated the importance of risk analysis for project design, construction and operation of large reservoirs, and the need for ongoing assessments of works of this nature.

scholarly journals Proceso de aprendizaje en la fabricación integrada de una plataforma robótica educativa multidisciplinar

2020 ◽  
Author(s):  
Alejandro Martí Gil ◽  
Eduardo Quevedo Gutiérrez ◽  
Pedro Hernández Castellano ◽  
Alberto Zapatera Llinares ◽  
Himar Fabelo Gómez ◽  
...  
Keyword(s):  
Low Cost ◽  
Mathematics Learning ◽  
Educational Innovation ◽  
High Price ◽  
General Interest ◽  
Project Design ◽  
Educational Robotics ◽  
Innovation Project ◽  
And Mathematics ◽  
The University

Educational robotics has come to the classrooms and is here to stay. STEAM (Science, Technology, Engineering, Arts and Mathematics) learning has put the use of robots in classrooms in vogue, though these are mostly closed products and at a high price. The educational innovation project “Design, implementation and tests of a modular low-cost educational robotics platform” from the University of Las Palmas de Gran Canaria, expects to design an open, modular and low-cost educational robot to make robotics more accessible. One of the challenges which the project hopes to accomplish is for this robot to be able to adapt to any educational level, thanks to its modularity, from pre-school to university levels. This study analyzes the Industrial Design and Product Development Engineering degree students’ level of acceptance. Therefore, an analysis of the currently most used educational robots at any level has been made, comparing them to the project design. Moreover, a survey was passed to a total 78 students from several degrees to compare the level of acceptance, concluding that students show a general interest in the proposal, but not so among those of the study group, probably due to the lack of robotics knowledge.

scholarly journals Design, Construction and Tests of a Low-Cost Myoelectric Thumb

Technologies ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 63
Author(s):  
Murat Ayvali ◽  
Inge Wickenkamp ◽  
Andrea Ehrmann
Keyword(s):  
Mechanical Properties ◽  
3D Printing ◽  
Low Cost ◽  
The Body ◽  
Human Hand ◽  
Typical Application ◽  
Myoelectric Prostheses ◽  
Manual Tasks ◽  
Recent Project ◽  
Design Construction

Myoelectric signals can be used to control prostheses or exoskeletons as well as robots, i.e., devices assisting the user or replacing a missing part of the body. A typical application of myoelectric prostheses is the human hand. Here, the development of a low-cost myoelectric thumb is described, which can either be used as an additional finger or as prosthesis. Combining 3D printing with inexpensive sensors, electrodes, and electronics, the recent project offers the possibility to produce an individualized myoelectric thumb at significantly lower costs than commercial myoelectric prostheses. Alternatively, a second thumb may be supportive for people with special manual tasks. These possibilities are discussed together with disadvantages of a second thumb and drawbacks of the low-cost solution in terms of mechanical properties and wearing comfort. The study shows that a low-cost customized myoelectric thumb can be produced in this way, but further research on controlling the thumb as well as improving motorization are necessarily to make it fully usable for daily tasks.

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