scholarly journals Full IoT Lora School Building Management System

2019 ◽  
Author(s):  
Bruno Mataloto ◽  
Joao C. Ferreira ◽  
Nuno Cruz
Keyword(s):  
Energy Consumption ◽  
Low Cost ◽  
Development Phase ◽  
Total Energy Consumption ◽  
Cooling Systems ◽  
Flexible Approach ◽  
Heating And Cooling ◽  
Building Management ◽  
Building Management System ◽  
Communication Board

In this research paper we describe the development phase of a low-cost LoRa IoT solution applied to a kindergarten school with three years results. A set of sensors solution was developed in a LoRa communication board, battery powered, providing a simplified setup process. These sensors were used in order to measure temperature, humidity, luminosity, air quality and presence. Also, energy monitor solutions were integrated. The acquired data is transmitted and analysed for knowledge extraction, identifying savings and other related KPIs. From data, automatic saving actions were performed towards heating and cooling systems, lighting and a set of if-then actions were developed for automatic cost-saving actions, based on infrared signals to heating/cooling systems using some procedure of external command devices. This approach avoids the usage of proprietary vendor solutions in a flexible approach that can easily be deployed to any building facility. This is an important achievement since most of the building consumption is based on heating and cooling systems. In a three years test of the solution, the total energy consumption savings surpassed 20%

Mapping vegetation-induced obstruction in agricultural ditches: A low-cost and flexible approach by UAV-SfM

2021 ◽  
Vol 256 ◽  
pp. 107083
Author(s):  
Sara Cucchiaro ◽  
Eugenio Straffelini ◽  
Kuo-Jen Chang ◽  
Paolo Tarolli
Keyword(s):  
Low Cost ◽  
Flexible Approach

scholarly journals A More Flexible Approach to Utilizing Depth Cameras for Hand andTouch Interaction

2012 ◽  
Vol 11 (3) ◽  
pp. 53-57 ◽  
Author(s):  
Thomas Butkiewicz
Keyword(s):  
Image Processing ◽  
Efficient Method ◽  
Low Cost ◽  
Kinect Sensor ◽  
Processing Methods ◽  
Flexible Approach ◽  
Depth Cameras ◽  
Depth Images ◽  
Surface Reflectivity ◽  
Gestural Input

Many researchers have utilized depth cameras for tracking user's hands to implement various interaction methods, such as touch-sensitive displays and gestural input. With the recent introduction of Microsoft's low-cost Kinect sensor, there is increased interest in this strategy. However, a review of the existing literature on these systems suggests that the majority suffer from similar limitations due to the image processing methods used to extract, segment, and relate the user's body to the environment/display. This paper presents a simple, efficient method for extracting interactions from depth images that is more flexible in terms of sensor placement, display orientation, and dependency on surface reflectivity.

scholarly journals Using Consensus Workshop in the Classroom: Promoting Participation and Collaboration in Large Group Settings

2017 ◽  
Vol 3 (4) ◽  
pp. 346-353
Author(s):  
Helen Charlton
Keyword(s):  
Student Engagement ◽  
Low Cost ◽  
Group Discussions ◽  
Flexible Approach ◽  
Large Group ◽  
Group Settings

Encouraging engagement when teaching groups of students can prove challenging. Consensus Workshop offers a low cost and flexible approach to the facilitation of large group discussions, appropriate with all levels of learners and across disciplines. Particularly powerful at encouraging student engagement and collaboration in the classroom, it has proven popular with students and academic peers. This article discusses the application of the Consensus Workshop across a range of classroom situations, outlines how to become familiar with the technique, and details the resources required to use the approach.

scholarly journals HYBRID FLEXIBLE APPROACH FOR SIX SIGMA IMPLEMENTATION IN CONSTRUCTIONAL SME

2013 ◽  
Vol 19 (5) ◽  
pp. 718-727 ◽  
Author(s):  
Jerzy Paslawski
Keyword(s):  
Construction Industry ◽  
Operations Management ◽  
Six Sigma ◽  
Low Cost ◽  
Hybrid Approach ◽  
Implementation Process ◽  
Flexible Approach ◽  
Level Of Automation ◽  
Medium Enterprise ◽  
High Level

Possibility of Six Sigma implementation in small/medium enterprise (SME) in construction industry is the goal of this paper. Robust conception of Six Sigma is taken as one option of flexible approach used in construction industry for risk management. High level of risk on the operations management is very important feature in comparison between construction industry and other economy branches. This problem is connected with very restricted level of automation and robotics, influenced environment, etc. Hierarchical culture with fragmentation of activity and low cost preferences as typical approach in construction industry seems to be important reasons of problems in Six Sigma implementation process. Presented conception is based on hybrid approach for flexibility implementation: robustness (Six Sigma), adaptation, simplification (Japan flexibility school) and modification of organizational culture. All four elements were fitted together for achievement of synergy effect.

Decomposition of the metastable beta titanium alloy Ti-15-3

1983 ◽  
Vol 41 ◽  
pp. 264-265
Author(s):  
Y. L. Chen ◽  
S. Fujlshiro
Keyword(s):  
Low Cost ◽  
High Strength ◽  
Alpha Phase ◽  
Thick Sheet ◽  
Omega Phase ◽  
Beta Titanium Alloy ◽  
Beta Titanium ◽  
Beta Matrix ◽  
Metastable Beta ◽  
Very High

Metastable beta titanium alloys have been known to have numerous advantages such as cold formability, high strength, good fracture resistance, deep hardenability, and cost effectiveness. Very high strength is obtainable by precipitation of the hexagonal alpha phase in a bcc beta matrix in these alloys. Precipitation hardening in the metastable beta alloys may also result from the formation of transition phases such as omega phase. Ti-15-3 (Ti-15V- 3Cr-3Al-3Sn) has been developed recently by TIMET and USAF for low cost sheet metal applications. The purpose of the present study was to examine the aging characteristics in this alloy.The composition of the as-received material is: 14.7 V, 3.14 Cr, 3.05 Al, 2.26 Sn, and 0.145 Fe. The beta transus temperature as determined by optical metallographic method was about 770°C. Specimen coupons were prepared from a mill-annealed 1.2 mm thick sheet, and solution treated at 827°C for 2 hr in argon, then water quenched. Aging was also done in argon at temperatures ranging from 316 to 616°C for various times.

Chromic Acid Etching of Polyethylene

1973 ◽  
Vol 31 ◽  
pp. 72-73
Author(s):  
J. D. Muzzy ◽  
R. D. Hester ◽  
J. L. Hubbard
Keyword(s):  
Chromic Acid ◽  
Low Cost ◽  
Acid Etching ◽  
Crystalline Morphology ◽  
Bulk Specimen ◽  
Morphological Studies ◽  
Perfect Form ◽  
Molecular Length ◽  
Lamellar Texture ◽  
Cost Studies

Polyethylene is one of the most important plastics produced today because of its good physical properties, ease of fabrication and low cost. Studies to improve the properties of polyethylene are leading to an understanding of its crystalline morphology. Polyethylene crystallized by evaporation from dilute solutions consists of thin crystals called lamellae. The polyethylene molecules are parallel to the thickness of the lamellae and are folded since the thickness of the lamellae is much less than the molecular length. This lamellar texture persists in less perfect form in polyethylene crystallized from the melt.Morphological studies of melt crystallized polyethylene have been limited due to the difficulty of isolating the microstructure from the bulk specimen without destroying or deforming it.

Glass Knife Geometry as Seen by the SEM

1971 ◽  
Vol 29 ◽  
pp. 454-455
Author(s):  
J. Temple Black
Keyword(s):  
Low Cost ◽  
Amorphous Material ◽  
Stress Concentrations ◽  
Basic Tool ◽  
Tool Materials ◽  
Optical Inspection ◽  
Surface Flaws ◽  
Slip Planes ◽  
Glass Knife ◽  
Diamond Knife

In ultramicrotomy, the two basic tool materials are glass and diamond. Glass because of its low cost and ease of manufacture of the knife itself is still widely used despite the superiority of diamond knives in many applications. Both kinds of knives produce plastic deformation in the microtomed section due to the nature of the cutting process and microscopic chips in the edge of the knife. Because glass has no well defined slip planes in its structure (it's an amorphous material), it is very strong and essentially never fails in compression. However, surface flaws produce stress concentrations which reduce the strength of glass to 10,000 to 20,000 psi from its theoretical or flaw free values of 1 to 2 million psi. While the microchips in the edge of the glass or diamond knife are generally too small to be observed in the SEM, the second common type of defect can be identified. This is the striations (also termed the check marks or feathers) which are always present over the entire edge of a glass knife regardless of whether or not they are visable under optical inspection. These steps in the cutting edge can be observed in the SEM by proper preparation of carefully broken knives and orientation of the knife, with respect to the scanning beam.

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