10 research outputs found

    Design of Wireless Monitoring and Controlling System of Power Transmission Lines

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    In the traditional overhead power transmission lines systems, detection of the faults in electric lines is more difficulty, and leads to take more times to  repair it. The faults resulting from  loads or current leakage are difficult to detect. This paper offers a monitoring system for the weather conditions such as humidity, temperature, and rainfall, and also monitoring the current flow of the line to detect the faults and specified the fault region. The system disconnect the power when an over value exist. The design consist a group of nodes, each one contains a transmitter and receiver unit. The transmitter consists of group of sensors DHT11 sensor, Rain sensor and ACS755 which sends the measured information as frames via Xbee technology. All these nodes send their data to the main node. Virtual Serial Port Emulator VSPE used to access multiple nodes on the main pc. The results in this paper shows the performance of the system when all the parameters were within the allowed range. The design also was simulated in different out range values of over current, high humidity and high rainfall. The obtained results were accurate and prove that it works successfully

    The Efficiency of Dyes Sensitized Solar Cells Using Different Sensitized Dyes

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    Manufacturing techniques of solar cell have been developed rapidly since their first appearance. Dyes sensitized solar cell (DSSC) is a modern technique of solar cell .It optimized by their low manufacturing cost and the high power conversion. In this paper three of DSSC were fabricated using three different sensitized dyes Cumarin 500 , Alcian Blue 8GX and Bangal Ross B Sodium Salt. The absorbance of each DSSC was determined by Ultraviolet- visible spectrometer. The short circuit voltage and current were measured for each sample to determine which of the dyes has the best efficiency of power conversion. The results also obtained the fill factor for each of DSSCS. The results showed the fill factor and the bandgap of each sample. The voltage and current results reflect that  Bangal Ross has the highest efficient of the other dyes

    Design of Wireless Control Mixing System of Liquids using Raspberry Pi Device

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    The use of automation technology in the field of mixing liquids assists to reduceerrors in this process which improved the quality of products. Liquid mixing machines often require a number of workers in order to operate the machines which increases the risk to them. This paper proposes wireless design for mixing three different liquids using raspberry pi technology. The design aims to provide lower risk rates, lower cost and high accuracy. The mechanism of mixing the three liquids and filling the tanks is done automatically using raspberry pi and ultrasonic sensors. Users must have to login with the correct IP address and password in order to access the application using a Wi-Fi connection. The system consists of three sub tanks filling the main tank in specifec ratio for each one. The programming of this implemention is accompleshed using python language. The experimental results have proven that the system works successfully and it can be applied in a real environment

    Design of Wireless Automatic Microwave Antenna Alignment System

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    Microwave link aligning is an important operation in communication systems. Misalignment in line of sight link due to rain, wind etc considered the basic problem that faced the microwave system. This problem caused a direct terminating of the microwave link. Automatic antenna alignment will guarantee best communication at the link’s ends without any risks of human interface. This paper presented a low cost design of an automatic antenna alignment system based on arduino and using Xbee wireless technology. The design in the paper is automatically adjusting the horizontal and vertical angles in the transmitter and receiver sides of the microwave link. The controller compared the measured values of these two angles with a reference values. The correction of the error in the angles is done by moving the antenna towards the correct position. The design was tested in different angles positions and the results were reported in the paper. The simulation results ensure that the system works successfully

    RADIOGRAPHIC ASSESSMENT OF THE COURSE AND VISIBILITY OF THE MANDIBULAR CANAL BY PANORAMIC RADIOGRAPHY

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    Background and Objectives:  The mandibular canal is a canal inside the mandible that contains the inferior alveolar artery, the inferior alveolar nerve and the inferior alveolar vein. The anatomy and variations of the human mandible are very important for planning various surgical measures such as extraction of the third molar, dental implants and mandibular reconstruction. This study was conducted to determine the frequency of the different courses of the mandibular canal  and to investigate the visibility of the mandibular canal by panoramic radiography, among a sample of Yemeni adults. Subjects and Methods: A retrospective cross-sectional study was conducted in Sana'a city on a sample of Yemeni adults. The study consisted of panoramic radiographs of 928 patients; the number of males was 340 (36.6%) and 588 females (63.4%). The mandibular canal course, as shown in the panoramic radiographs, was classified into four types: elliptical, linear, turning curves and spoon-shaped. The visibility of this canal from the first to the third molar region was assessed through visual determination of whether the lower canal was clearly visible, possibly visible, or invisible. Results:   Elliptical curves were the most observed along the mandibular canal course at 62.2% of the total, followed by the linear curve (24.8%) while the lower rate curve spoon (7.9%) and the turning curve (5.2%). There were no statistically considerable differences between the distribution of the mandibular canal courses between males and females except in the spoon curve where the ratio was 10.8% in males versus 6.1% in females (p <0.05). The percentage of clearly visible mandibular canals was the highest among the spoon-shaped curves (49.9% in the first molar, 63% in the second, 78.1% in the third molar) and the lowest among the linear curves (10.9% in the first, 18.7% in the second and 33.5% in the third molar). On panoramic radiographs, the invisible mandibular canals are found in 198 (21.3%) of the examined sites in the first molar region, in 85 (11%) in the second molar region, and in only 6 (0.64%) in the third molar region. Conclusion:  It was observed that elliptical curves along the path of the mandibular canal were the most present, while a decrease in the ratio of the two types of spoon curve and turning curve was observed. It was found that spoon curve was significantly more common among males than females. It was also found that the visibility of  madibular canal is fewer in the first molar region than in the third molar region.                Peer Review History: Received: 21 September 2020; Revised: 8 October; Accepted: 29 October, Available online: 15 November 2020 Academic Editor: Dr. Sally A. El-Zahaby, Pharos University in Alexandria, Egypt, [email protected] UJPR follows the most transparent and toughest ‘Advanced OPEN peer review’ system. The identity of the authors and, reviewers will be known to each other. This transparent process will help to eradicate any possible malicious/purposeful interference by any person (publishing staff, reviewer, editor, author, etc) during peer review. As a result of this unique system, all reviewers will get their due recognition and respect, once their names are published in the papers. We expect that, by publishing peer review reports with published papers, will be helpful to many authors for drafting their article according to the specifications. Auhors will remove any error of their article and they will improve their article(s) according to the previous reports displayed with published article(s). The main purpose of it is ‘to improve the quality of a candidate manuscript’. Our reviewers check the ‘strength and weakness of a manuscript honestly’. There will increase in the perfection, and transparency. Received file:                Reviewer's Comments: Average Peer review marks at initial stage: 6.5/10 Average Peer review marks at publication stage: 8.0/10 Reviewer(s) detail: Dr. Sunita Singh, Baylor College of Medicine, Houston, Texas, USA, [email protected] Dr. Ali Abdullah A. Al-Mehdar, Thamar University, Yemen,  [email protected] Similar Articles: BIOFILM FORMATION AND ANTIBIOTIC SUSCEPTIBILITY OF UROPATHOGENS IN PATIENTS WITH CATHETER ASSOCIATED URINARY TRACT INFECTIONS IN IBB CITY -YEME

    PREVALENCE OF STAPHYLOCOCCUS AUREUS IN DENTAL INFECTIONS AND THE OCCURRENCE OF MRSA IN ISOLATES

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    Objectives:  Staphylococcus aureus is an opportunist that causes systemic infections and dental infections in the human being body. This organism increases its resistance to many categories of antibiotics all day and turn out to be more resistant, and this led to a growing feeling of concern in this era. Given this fact, the aims of this study were to determine the frequency of S. aureus in oral infections and to determine the prevalence of MRSA strains and the sensitivity of isolated S. aureus to antibiotics, in patients who attended dental clinics in major public hospitals and private clinics in the city of Sana'a-Yemen. Subjects and methods:  The study was conducted for a year, early in December 2018 and ending in November 2019. The study included 296 patients, 153 male and 143 female, ages 5 to 65, with an average age of 36.2 years. Demographic and clinical data were collected in questionnaire, then pus or oral swabs were collected from patients, cultivated, isolated and identified by standard laboratory techniques. MRSA was ascertained by means of the method of disc diffusion to 1µg of oxicillin disc and 5 µg of methacillin disc; an antimicrobial sensitivity test was carried out by disc diffusion method of selected antibiotics.The oral  infections include  dental abscesses,  periodontal abscesses, gingivitis, periodentitis, dental caries,  pulpitis and oral thrush. Results:  Of a total of 296 cultured pus and swabs, only 217 produced a positive culture (73.3%). Gram-positive bacteria formed 67.4% of the total isolates where S. aureus was the predominant pathogen (43.1%).  The prevalence of MRSA was 23.5%. There was a higher rate of antibiotic resistance tested in MRSA isolates compared to a lower rate of resistance in MSSA as well as 22.2% of MRSA isolates were vancomycin resistant, while only 11.4% of MSSA were vancomycin resistant. Conclusion:  It can be concluded, S. aureus was the most widespread isolate in dental infections, high rate of  MRSA,  the appearance of S. aureus isolates resistant to vancomycin and other broad choice of antibiotics have raised MRSA in oral infections into a multi-drug-resistant, making it more and more hazardous in oral infections. Consistent assessment of oral associated infections and observing the pattern of antibiotic sensitivity and strict drug policy for antibiotics are recommended.                        Peer Review History: Received 16 April 2020; Revised 2 May; Accepted 12 May, Available online 15 May 2020 Academic Editor:Ahmad Najib, Universitas Muslim Indonesia, Makassar, Indonesia, [email protected] UJPR follows the most transparent and toughest ‘Advanced OPEN peer review’ system. The identity of the authors and, reviewers will be known to each other. This transparent process will help to eradicate any possible malicious/purposeful interference by any person (publishing staff, reviewer, editor, author, etc) during peer review. As a result of this unique system, all reviewers will get their due recognition and respect, once their names are published in the papers. We expect that, by publishing peer review reports with published papers, will be helpful to many authors for drafting their article according to the specifications. Auhors will remove any error of their article and they will improve their article(s) according to the previous reports displayed with published article(s). The main purpose of it is ‘to improve the quality of a candidate manuscript’. Our reviewers check the ‘strength and weakness of a manuscript honestly’. There will increase in the perfection, and transparency. Received file:                Reviewer's Comments: Average Peer review marks at initial stage: 5.5/10 Average Peer review marks at publication stage: 8.0/10 Reviewer(s) detail: Dr. Mohamed Awad Mousnad, Faculty of Pharmacy, International University of Africa (IUA), Khartoum, Sudan, [email protected] Dr. George Zhu, Tehran University of Medical Sciences, Tehran, Iran, [email protected] Similar Articles: PREVALENCE OF METHICILLIN RESISTANT STAPHYLOCOCCUS AUREUS (MRSA) AND ANTIMICROBIAL SUSCEPTIBILITY PATTERNS AT A PRIVATE HOSPITAL IN SANA'A, YEMEN PREVALENCE, ANTIMICROBIAL SUSCEPTIBILITY PATTERN AND RISK FACTORS OF MRSA ISOLATED FROM CLINICAL SPECIMENS AMONG MILITARY PATIENTS AT 48 MEDICAL COMPOUND IN SANA'A CITY-YEME

    Design of Irrigation Management System in Gezira Scheme Using Geographic Information System

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    Gezira scheme, ultimately becomes the largest centrally-managed irrigation project in the world. This paper presented a design to provide intelligent system used for managing irrigation in Gezira scheme. The system solves the problem of crops thirsty and water loss. The paper aims to monitor the flow of water in the channels, which ensures the arrival of accurate water for all areas of the project. The Geographic information system (GIS) data analysis helps to get knowledge of what area is actually has the potential for growing. The used image obtained from LANDSAT8 satellite and with the aid of ARC-GIS application for the Normalized Difference Vegetation Index NDVI was calculated. The obtained results revealed that the region of red color, which has NDVI between (-0.2 - 0) represents non-growing area, the region of yellow color which has NDVI between (0 – 0.3) represents and the region of green color, which has NDVI between (0.3 – 0.55) represents normal irrigated area. The results of the NDVI have proven that the system can be used successfully. A hardware circuit was designed to enable the use of the NDVI that results in the opening or closing of the flow of water. Also, the results show the use of the global positioning system (GPS) system in the field of study that gives the local or global coordinates according to the coordinate system used in the study

    An IoT Monitoring Design System of Road Overweight Vehicles Based on Raspberry Pi

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    The overload vehicles are the basic challenge of the road users because they caused many harms for roads in addition to increasing  the accidents ratio on the roads. There are many peoples are dead every day due to collapsing of roads. Automatic monitoring system became necessary and highly demand to overcome this problem. This paper presented a  design of wireless monitoring system based on Raspberry Pi model and used camera for monitoring any case of  breaking the law. The design in this paper is a low cost design because it has simple structure. The system established a database to archive all the cases of infirming the allowed legal weight limit of the road. The camera will captures an image when the vehicle's weight is out of allowed limit, the data is sent directly to the database which includes the date ,time, weight and the path of the captured image. A web page is used to provide an easy monitoring of the system. The system is experimentally tested several times and the obtained results show that the system has good performance and accurate results..
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