scholarly journals Wi-Fi Based Fire Extinguisher Robot

2021 ◽  
Vol 2062 (1) ◽  
pp. 012012
Author(s):  
Abul Hassan Laiq ◽  
Bheem Kant Kaushal ◽  
Mohan Kumar ◽  
Chandan Choubey
Keyword(s):  
Low Cost ◽  
Fire Extinguisher ◽  
Huge Number ◽  
Fire Extinguishing ◽  
Main Motive

Abstract Fire occurrences are the disaster that can cause many humans as well as animal death, property mutilation and disabilities to affected humans. The main motive to develop this robot is to overcome the loss of human lives and get best of this disaster. The idea is to develop a robot that will be used for fire extinguishing purpose and save a huge number of human lives. Keeping in mind that the human and animal lives are important to work upon. A low-cost robot will be developed for fire extinguisher. Arduino programming will be done wisely so that the flame sensor can work accordingly. Small and low-cost robot will definitely reduce the chances of fire to get to its extreme level.

scholarly journals Sodium Bis(oxalato)borate in Trimethyl Phosphate: A Fire-Extinguishing, Fluorine-Free, and Low-Cost Electrolyte for Full-Cell Sodium-Ion Batteries

2020 ◽  
Vol 3 (5) ◽  
pp. 4974-4982
Author(s):  
Ronnie Mogensen ◽  
Simon Colbin ◽  
Ashok Sreekumar Menon ◽  
Erik Björklund ◽  
Reza Younesi
Keyword(s):  
Low Cost ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Trimethyl Phosphate ◽  
Full Cell ◽  
Fire Extinguishing

scholarly journals Propolis: a new frontier for wound healing?

2015 ◽  
Vol 3 ◽  
pp. 1-7 ◽  
Author(s):  
Simona Martinotti ◽  
Elia Ranzato
Keyword(s):  
Biological Effects ◽  
Low Cost ◽  
Healing Process ◽  
Geographical Location ◽  
Chemical Components ◽  
Botanical Origin ◽  
Huge Number ◽  
New Frontier ◽  
Natural Resins ◽  
Folk Remedies

Abstract Propolis is a resin produced by honeybees by mixing wax, pollen, salivary secretions, and collected natural resins. The precise composition of propolis varies with the source, and over 300 chemical components belonging to the flavonoids, terpenes, and phenolic acids have been identified in propolis. Moreover, its chemical composition is subjected to the geographical location, botanical origin, and bee species. Propolis and its compounds have been the focus of many works due to their antimicrobial and anti-inflammatory activity; however, it is now recognized that propolis also possesses regenerative properties. There is an increasing interest in the healing potential of natural products, considering the availability and low cost of these products. Propolis contains a huge number of compounds that explicate some biological effects that speeds up the healing process and is widely used in folk remedies. This review aims to condense the results on the mechanism of activity of propolis and its compounds.

scholarly journals Sodium Bis(oxalato)borate (NaBOB) in Trimethyl Phosphate: A Fire-Extinguishing, Fluorine-Free, and Low-Cost Electrolyte for Full-Cell Sodium-Ion Batteries

2020 ◽  
Author(s):  
Ronnie Mogensen ◽  
Simon Colbin ◽  
Ashok Menon ◽  
Erik Björklund ◽  
Reza Younesi
Keyword(s):  
Ionic Conductivity ◽  
Coulombic Efficiency ◽  
Low Cost ◽  
Industrial Applications ◽  
Sodium Ion ◽  
Carbon Anode ◽  
Sodium Ion Batteries ◽  
Trimethyl Phosphate ◽  
Fire Extinguishing ◽  
Battery Technology

Sodium-ion batteries based on all-naturally-abundant elements, in which no cobalt, nickel, copper, and fluorine is used, can lead to a major breakthrough in making batteries more sustainable. Safety aspects -in particular flammability of electrolytes- in the state-of-theart battery technology is another important concern, especially for applications in which large numbers of cells are employed. Non-flammable battery electrolytes studied so far are based on highly fluorinated compounds or high salt concentrations, which suffer from high cost and toxicity. We here propose an electrolyte based on a single solvent and lowcost and fluorine-free salt at the lower range of “standard” concentrations. Our results show -for the first time- that sodium bis(oxalato)borate (NaBOB) is soluble in the nonflammable solvent trimethyl phosphate (TMP). This finding enables a non-flammable electrolyte with high ionic conductivity and promising electrochemical performance in fullcell sodium-ion batteries. An electrolyte of 0.5 M NaBOB in TMP provides ionic conductivity of 5 mS cm-1 at room temperature, which is comparable to commonly used electrolytes based on sodium hexafluorophosphate (NaPF6) and organic carbonate solvents. The proposed electrolyte shows the Coulombic efficiency of above 80% in the first cycle, which increased to about 97% from the second cycle in sodium-ion battery fullcells consisting of a hard carbon anode and Prussian white cathode. This work opens up new opportunities to design safe electrolytes which can further be optimized with electrolyte additives such as vinylene carbonate for industrial applications.<br>

scholarly journals An Orthogonal Air Pollution Monitoring Method (OAPM) Based on LoRaWAN

2020 ◽  
Vol 9 (3) ◽  
pp. 42
Author(s):  
Rahim Haiahem ◽  
Pascale Minet ◽  
Selma Boumerdassi ◽  
Leila Azouz Saidane
Keyword(s):  
Air Pollution ◽  
Low Cost ◽  
Pollution Monitoring ◽  
Area Network ◽  
Wide Area Network ◽  
Huge Number ◽  
Monitoring Method ◽  
Air Pollution Monitoring ◽  
Battery Lifetime ◽  
Monitoring Application

High accuracy air pollution monitoring in a smart city requires the deployment of a huge number of sensors in this city. One of the most appropriate wireless technologies expected to support high density deployment is LoRaWAN which belongs to the Low Power Wide Area Network (LPWAN) family and offers long communication range, multi-year battery lifetime and low cost end devices. It has been designed for End Devices (EDs) and applications that need to send small amounts of data a few times per hour. However, a high number of end devices breaks the orthogonality of LoRaWAN transmissions, which was one of the main advantages of LoRaWAN. Hence, network performances are strongly impacted. To solve this problem, we propose a solution called OAPM (Orthogonal Air Pollution Monitoring) which ensures the orthogonality of LoRaWAN transmissions and provides accurate air pollution monitoring. In this paper, we show how to organize EDs into clusters and sub-clusters, assign transmission times to EDs, configurate and synchronize them, taking into account the specificities of LoRaWAN and the features of the air pollution monitoring application. Simulation results corroborate the very good behavior of OAPM.

Active Validation with Sensory Data for Access Control System

2020 ◽  
Vol 17 (8) ◽  
pp. 3592-3597
Author(s):  
Lalitha Chittaturi ◽  
Sravani N. Venkata Chittabatteni ◽  
B. Bharathi
Keyword(s):  
Cell Phone ◽  
Web Applications ◽  
Low Cost ◽  
Motion Sensors ◽  
Sensory Data ◽  
Main Motive ◽  
Access Control System ◽  
One Time Password ◽  
The One ◽  
Movement Sensors

This paper covers the main motive of using motion sensors and how to protect the information from unauthorized use. It defines the accelerometer motion sensor for obtaining about x, y, and z-axis of a device. It maintains fewer vulnerabilities so that there is no chance of intruder attacks. Using wireless sensors makes the application more efficient and high security with low cost as these sensors are already present in the device and that can be used either in Android and Web applications. It discusses algorithms like Advance Standard Encryption and techniques like data preprocessing, f-vector extraction and f-vector matching. The main objective is (i) It is completely based on the user movement (ii) It generates a one-time-password based on the rotation of the device (iii) It picks one of the one-time-password as its password. It shows that the analysts, cell phone sellers and application engineers would site to focus on movement sensors and uphold to structure convey viable guard systems.

Non-invasive attempts to extinguish flames with the use of high-power acoustic extinguisher

2021 ◽  
Vol 11 (1) ◽  
pp. 349-355
Author(s):  
Paweł Stawczyk ◽  
Jacek Wilk-Jakubowski
Keyword(s):  
Acoustic Wave ◽  
High Power ◽  
Experimental Results ◽  
Fire Extinguisher ◽  
Non Invasive ◽  
Fire Extinguishing ◽  
Innovative Method

Abstract This paper presents an innovative method of extinguishing of flames using a high-power acoustic extinguisher. This method allows for effective and non-invasive extinguishing of the flames. Experimental results showing the effectiveness of the fire extinguisher for different distances from the flame source and different frequencies of the acoustic wave are discussed. The paper ends with the description of the advantages, disadvantages, and limitations of the proposed fire extinguishing method.

scholarly journals IoT Technology Based Fire-Fighter Robot

2020 ◽  
pp. 934-941
Author(s):  
Vyshnavi M B ◽  
Anju Satheesh ◽  
Shikha Suresh S ◽  
L C Manikandan
Keyword(s):  
Internet Of Things ◽  
Fire Fighter ◽  
Fire Extinguisher ◽  
Fire Extinguishing ◽  
Desktop Application ◽  
Fire Type

Detecting and extinguishing fire is a hazardous job for a person who handles the fire using a fire extinguisher. The IoT firefighter robot is the solution for detecting and extinguishing fire efficiently. The robot is both autonomous and controlled. The controlling of robot is done by using a Remote Desktop application. The robot and the application (authority) are connected via Internet. In this paper we introduced how the concept of Internet of Things (IoT) is introduced in the robot. Authority helps the robot to identify the fire type to apply appropriate fire extinguishing methods. In future, the IoT firefighter robot can implemented as a drone for terrestrial areas.

scholarly journals A Study on the Development of Fire Extinguishing Agent and Extinguishing System for ESS Fire

2020 ◽  
Vol 34 (2) ◽  
pp. 147-155
Author(s):  
Yeon-Ho Lee ◽  
Joo-Hyung Lee ◽  
Soo-Jin Kim ◽  
Sung-Ho Chon ◽  
Byoung-Chul Choi ◽  
...  
Keyword(s):  
Surface Tension ◽  
Fire Suppression ◽  
Storage System ◽  
Energy Storage System ◽  
Gas Release ◽  
Fire Extinguisher ◽  
Application System ◽  
Fire Extinguishing ◽  
System A ◽  
Fire Extinguishing System

This paper presents a study on the development of a fire extinguishing agent and extinguishing system for an energy storage system (ESS) fire. The fire extinguishing agent designed to extinguish an ESS fire is a highly permeable fire extinguisher that reduces the surface tension and viscosity while bringing about cooling action. This is the main extinguishing effect of this type of wetting agent, which displays the characteristics of fire extinguishing agents used for penetrating the battery cells inside the ESS module. For the fire extinguishing system, a local application system was designed to suppress fire on a rack-by-rack basis. A 360° rotating nozzle was inserted into the rear hall of the ESS module, and general nozzles were installed in the rack to maximize the fire extinguishing effect. The fire extinguishing agent was strongly discharged by virtue of the gas release pressure. Experiments on fire suppression performance with ESS module 1 unit and module 3 units showed that all visible flames were extinguished in 8 s and 9 s, respectively, by the fire extinguishing agent. In addition, based on confirming reignition for 600 s after the fire extinguishing agent was exhausted, it was confirmed that the ESS fire was completely extinguished without reignition in all fire suppression performance experiments.

scholarly journals Distribution of fire extinguishing powder fractions in simulated non-stationary gas stream

2020 ◽  
Vol 28 (6) ◽  
pp. 80-88
Author(s):  
A. S. Polyakov ◽  
D. F. Kozhevin ◽  
A. S. Konstantinova
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Fractional Composition ◽  
Chemical Properties ◽  
Fire Extinguisher ◽  
Fire Extinguishing ◽  
Powder Samples ◽  
Powder Particles ◽  
Physical And Chemical ◽  
Flow Cross

Introduction. The article presents the regularities of particles distribution of fire extinguishing powder fractions in the cross sections of the simulated unregulated non-stationary gas stream. The distance from the fire extinguisher cut which the stream is most stable in terms of the content of fire extinguishing powder particles is determined. There are works in which the physical and chemical properties of fire-extinguishing powders are considered, the movement of powder particles in the stream is modeled, the influence of the fractional composition of the powder on its fire-extinguishing capacity is determined. At the same time distribution of powder fractions during its movement in gas-powder stream is not considered. The purpose of the present work is to find ways to improve the efficiency of powder extinguishers by controlling the distribution of powder fractions in a non-stationary gas stream.Materials and methods. Experimental study installation consists of coordinate table oriented perpendicular to gas-powder stream direction. The table is equipped with collectors that allow to collect powder samples at control points of flow cross-section. Food sodium chloride (further — salt) was used in the experiment. Its characteristics correspond to GOST R 53280.4–2009 and allow to apply it as a model. The coordinate table was installed sequentially at a distance of 500, 750, 1000 and 1250 mm from the fire extinguisher cut. Next, a shot of salt with a known fractional composition was supplied with a fire extinguisher model to a coordinate table and the retained powder samples were taken. The mass and fractional composition of the samples collected by each collector were then determined. Stability of the particle distribution in the gas stream by statistical analysis (by Fischer’s criterion) was measured for their content.Conclusions. Regularities of different fire extinguishing powder fractions distribution in cross section of non-regulated non-stationary gas stream are established and analytically described. These regularities can be used in finding ways to regulate fire extinguishing powder fractions during fire extinguishing. The most representative and stable in accuracy (correctness and precision) results of powder fractions content in the section of non-stationary gas stream at a distance of 1000 mm from the fire extinguisher cut. This should be taken into account in further research.

scholarly journals Low Cost Handheld 3D Scanning for Egyptian Architectural Artifacts Acquisition

2020 ◽  
Vol 9 (8) ◽  
pp. 195-200
Keyword(s):  
Laser Scanning ◽  
Low Cost ◽  
Complete Information ◽  
Huge Number ◽  
Reliable Technique ◽  
Digital Database ◽  
Laser Scanners ◽  
The World ◽  
Culture Heritage ◽  
Scanning Systems

Surface reconstruction of objects using photogrammetry and terrestrial laser scanning systems (TLS) has been a topic for research for many decades, especially for culture heritage data recording. Recently, many advances into these systems are now available in the market, which give the availability of collecting a huge number of geo-referenced 3-D points covering any object surface. Due to speed and efficiency of data acquisition by means of terrestrial laser scanners, researchers and designers can select the reliable technique, depending on their application, that can be complete to give good results for the complex surfaces such as heritage objects. As Grand Egyptian Museum (GEM), located nearby the Giza Pyramids, is set to open by 2020, which considered as the largest museum from its type all over the world, with a huge area covered about a half million m2 . GEM is proposed to be a unique museum all over the world for presenting a huge number from old history Egyptian artifacts. Consequently, there is a vital need for building a huge digital database containing complete information for this large number of artifacts. Mobile applications are presently at the primacy of documenting historical and archaeological sites. The current paper examine the methodological framework adopted for one high copy of Pharaonic artifacts, namely Offering Carrier, using hand held laser scanning and convert the results to a mobile application.

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