scholarly journals Experimental prototype for visual support in the calibration of the precision indicator lights of approach slope, for a landing track using a drone

Respuestas ◽  
2019 ◽  
Vol 24 (1) ◽  
pp. 42-49
Author(s):  
Jorge Enrique Herrera Rubio ◽  
Sergio Andrés Parra Prada
Keyword(s):  
Mobile Application ◽  
Experimental System ◽  
Experimental Tests ◽  
Lighting System ◽  
Visual Aids ◽  
Wireless Devices ◽  
Experimental Prototype ◽  
Flight Plan ◽  
Calibration Methods ◽  
Visual Aid

The use of calibration methods for visual aids systems in airports guarantees aviation safety with new alternatives and precision methods. The article shows the implementation of an experimental prototype for the support of visual aid in the calibration of precision indicator lights by means of a drone to improve the approach slopes of aircraft. In each of the experimental tests the following activities were developed: a) execute the program that contains the code to perform the process of emulation / calibration of the lights, b) connect the model of the lights to the Arduino and be connected to the portable equipment, c) perform the drone calibration process each time a flight plan is made, d) connect the mobile device to the drone’s remote control to integrate them into the wireless network (Wi-Fi), e) on the device mobile the application is executed to configure the flight plan and f) the emulation / calibration is performed with the model of the lights. Obtain the best visibility angles according to the effective percentages of experimentation that indicate the accuracy of the experimental system proposed through a mobile application. In addition, this article proposes a methodology for the calibration of the Precision Approach Path Indicator (PAPI) lights through wireless devices. The proposed methodology establishes the basic conditions for the development of the process of supervision, monitoring and calibration of the PAPI lighting system of any track in Colombia according to the regulations on luminous visual aids.

scholarly journals Lean thinking: using 6S and visual management for efficient adverse event closure

2021 ◽  
Vol 10 (1) ◽  
pp. e001197
Author(s):  
Ziad Alzahrani
Keyword(s):  
Adverse Event ◽  
Working Environment ◽  
Communication Tool ◽  
Visual Aids ◽  
Process Map ◽  
Lean Principles ◽  
Staff Members ◽  
Safety Reporting ◽  
Visual Aid ◽  
Medication Incidents

BackgroundWe focused on a busy Adult Oncology Department having over 130 staff members, with around 70 of them being physicians with different levels of specialties. A multidisciplinary committee was formed in the department, consisting of physicians, nurses, pharmacists, a medication safety representative and a quality specialist to look after all reported incidents.Local problemThe department staff at the institution in question in this study expressed their concern about the surging number of reported incidents, delays in closing reports within the set timeframe, ambiguity of individuals’ roles at the committee level and errors in using the safety reporting system (SRS). Accordingly, this study focused on the development of a visual aid through the creation of a functional process map to help clarify team roles and stipulate the steps for adverse event closure.MethodsThe Sort, Set-in order, Shine, Standardise, Sustain and Safety and visual management lean principles, as well as the eight lean wastes—Transportation, Inventory, Motion, Waiting, Overprocessing, Overproduction, Defect and Staff underutilisation—were introduced in early May 2016 and used during SRS committee meetings over 3 years.InterventionThe indicators used were the average number of days for both medication and non-medication incidents from the day of reporting until the closure. The extent that the limit was exceeded was compared.ResultsThe average number of days until closure showed a reduction from 67 to 37 and 134 to 61 between Periods I (2016) and III (2018) for medication and non-medication incidents, respectively.ConclusionsThe developed process map was a useful communication tool. It helped to sort process activities, team roles and streamline the process. It brought the average number of days until closure within the acceptable 45-day limit for medication incidents. Thus, using visual aids in the working environment is helpful in improving communication among the workers.

scholarly journals The potential of the pinhole as a visual aid in the developing world

2016 ◽  
Vol 75 (1) ◽  
Author(s):  
Antony S. Carlson ◽  
Warren A. Carlson ◽  
William F. Harris
Keyword(s):  
Visual Impairment ◽  
Developing World ◽  
Relative Performance ◽  
Visual Aids ◽  
Healthcare Facilities ◽  
Lighting Conditions ◽  
Vision Correction ◽  
Visual Aid ◽  
Comparative Measure

Purpose: Providing vision correction in communities where healthcare facilities are unavailable is problematic. Here, we explore the possibility of using pinholes as near visual aids in the developing world.Method: Uncompensated (without the pinhole) proximal visual acuities (VAs) were measured and recorded for one eye of 45 presbyopic subjects over the age of 50 years in photopic (250 lux) and scotopic (20 lux) conditions. The proximal VAs were then repeated while the subjects looked through nine different pinholes.Results: The VAs varied with the diameter of each pinhole. A comparative measure was devised to determine the relative performance of different diameter pinholes as a near visual aid. The results suggest an improvement of more than 40% in VA in about 67% of subjects in good lighting conditions and about 60% in poorer lighting conditions.Conclusion: By creating more awareness that there are other ways of improving vision that cost almost nothing, visual impairment can be reduced until spectacles become available.

Design of Airfield Lighting Monitor and Control System Based on Hybrid Network

2011 ◽  
Vol 467-469 ◽  
pp. 331-334
Author(s):  
Chang You Wang ◽  
Xiao Feng Yao
Keyword(s):  
Control System ◽  
Light Level ◽  
Configuration Software ◽  
Hybrid Network ◽  
Lighting System ◽  
Visual Aids ◽  
Lighting Control ◽  
Overall Design ◽  
Low Visibility ◽  
And Control

Airfield lighting system is necessary visual aids to ensure the normal movements of aircraft at night or under low visibility conditions. A hybrid network monitoring system based on CAN bus and Ethernet was introduced in the paper according to the actuality of national airfield lighting control system. The AC chop voltage regulating technology was adopted to adjust light level in the Dimmer what is the core of the system, configuration software, hybrid network technology were used to realize the remote monitoring, overall design scheme, the choice of hardware and software platform, and the realization method of network communication were gave out in the paper. Experimental results show that system performance is superior, and be worth promoting.

Structural Health Monitoring Experimental System Implemented in a Turboprop Commercial Aircraft

2007 ◽  
Vol 347 ◽  
pp. 311-317
Author(s):  
Igor Bovio ◽  
Leonardo Lecce
Keyword(s):  
Structural Damage ◽  
Damage Index ◽  
Experimental System ◽  
Experimental Tests ◽  
Processing Technique ◽  
Commercial Aircraft ◽  
Destructive Testing ◽  
Before And After ◽  
Neural Network Algorithm ◽  
Testing Field

The purpose of the paper is to present an innovative application within the Non Destructive Testing field based upon vibration measurements developed by the authors, and already tested for analysing damage of many structural elements. After having tested this application on different test articles in laboratory condition, experimental tests have been executed, in collaboration with the ATR company, on a turboprop ATR-72 aircraft, in order to validate the technique on a real aeronautical structure. The monitoring system have operated an off-line check on the structure, during the aircraft ground operations, as if it were a normal maintenance procedure. The results are reported in the paper. This proposed new method is based upon the acquisition and comparison of the Frequency Response Functions (FRFs) of the monitored structure before and after damage occurs. Structural damage modify the dynamic behaviour of a structure affecting its mass, stiffness and damping, and consequently the FRFs of a damaged structure, when compared with the FRFs of its sound configuration, making the identification, localization and quantification of damage possible. The activities presented in the paper focus mainly on a new FRFs processing technique based upon the determination of a representative “Damage Index” for identifying and analysing damage. Furthermore, a dedicated neural network algorithm has been elaborated to develop an automatic system which recognises positive samples, “healthy” states of the analysed structure, discarding negative ones, “damaged or perturbed” states of the analysed structure. From an architectural standpoint, piezoceramic patches have been used as both actuators and sensors.

Graph paper: a versatile visual aid

1969 ◽  
Vol 16 (2) ◽  
pp. 144-148
Author(s):  
Robert Parker
Keyword(s):  
Ease Of Use ◽  
Upper Elementary ◽  
Elementary Grades ◽  
Visual Aids ◽  
Sequential Development ◽  
Graph Paper ◽  
Visual Aid ◽  
Mathematics Program ◽  
Points Of View ◽  
The Many

In considering the mathematics program for elementary children, it is important for teachers to examine not only mathematical ideas but also the contexts within which such ideas are used. This usually means an examination of visual aids or tools of learning, since instruction in elementary grades depends upon the concrete to explain the abstract. With this in mind, one such tool that deserves special attention is graph, or squared, paper. Until one looks at the many possible uses of this visual aid, it may be taken for granted, and its applications remain sporadic and disconnected. This article is presented for the purpose of showing that graph paper is an educational device having few peers, especially from the points of view of economy, availability, and ease of use. An ordinary compilation of graph paper uses would be helpful to some degree, but what follows is a sequential development from the primary level through the upper elementary grades.

Audio-Visual Aid: An Effective Means to improve Parental Awareness toward Habits and Malocclusion Prevention in Children

2014 ◽  
Vol 5 (2) ◽  
pp. 98-101 ◽  
Author(s):  
K Kiran ◽  
Swati Dwivedi ◽  
Satyaki Arora ◽  
Deepa Singal ◽  
Varun Nikhra ◽  
...  
Keyword(s):  
Sample Size ◽  
Effective Means ◽  
Preventive Dentistry ◽  
Visual Aids ◽  
Oral Habits ◽  
Parental Awareness ◽  
Normal Individuals ◽  
Before And After ◽  
Visual Aid ◽  
Knowledge And Attitude

ABSTRACT Introduction Malocclusion is a very prevalent disorder of children. These disorders are frequently the result of deleterious oral habits. These disorders and their etiology are very difficult to explain to the parent, but the advent of audio-visual aids has solved this dilemma for the clinician. They allow the clinician to make the parents understand problems and also to compare with normal individuals. Aim The aim of the present study was to evaluate the awareness of parent toward malocclusion and the efficiency of audio-visual aid in improving parent awareness and compliance toward treatment. Materials and methods A sample size of 100 was estimated which were selected randomly from patients coming to the Department of Pedodontics and Preventive Dentistry, IDS Bareilly. An audio-visual aid was prepared describing the oral habits and their associated malocclusions. A self-prepared questionnaire was presented to the parent before and after the audio-visual aid was shown to them. Their awareness and change in attitude was recorded. Results There was statistically significant (p ≤ 0.001) improvement in the knowledge and attitude toward treatment after audio-visual aids were used. Conclusion Audio-visual aid is effective in improving awareness toward malocclusion caused due to oral habits. How to cite this article Chandra S, Singal D, Arora S, Dwivedi S, Kiran K, Nikhra V, Chandra N. Audio-Visual Aid: An Effective Means to Improve Parental Awareness toward Habits and Malocclusion Prevention in Children. World J Dent 2014;5(2):98-101.

scholarly journals Fluoroscopy-based laser projection system for surgical guidance and its calibration methods

10.29007/m1cq ◽  
2018 ◽  
Author(s):  
Sanghyun Joung ◽  
Hyunwoo Lee ◽  
Chul-Woo Park ◽  
Chnag-Wug Oh ◽  
Il-Hyung Park
Keyword(s):  
Experimental System ◽  
Ccd Camera ◽  
Calibration Method ◽  
Optical Tracking ◽  
Angular Error ◽  
Measurement Unit ◽  
Projection System ◽  
Calibration Phantom ◽  
Calibration Methods ◽  
Laser Module

We have developed a laser projection system, which can project laser on corresponding position to surgical planning drawn at a fluoroscopic image without an optical tracking system. In this paper, we introduce a spatial calibration method between a laser module and a fluoroscope for the laser projection and evaluate its accuracy with a mimic experimental system. The experimental system consists of a laser module, a distance measurement unit and a CCD camera. The laser modules can project arbitrary line on surface by reflecting a point source laser with two galvanometers. We designed a calibration phantom by combining a collimator for accurate laser pattern positioning and stainless steel ball arrays for calculation of an extrinsic parameter of a C-arm fluoroscopy. We set a projection plane having ruler in 400mm distance from the CCD camera, and set 54 points on the screen. The laser module projects points with respect to the set points, and a distance error between set points and projected points and angular error are calculated. The distance errors is 1.5±1.9 mm (average ± standard deviation). Maximum error was 7.5 mm. Angular error was smaller than 2 degrees. The laser projection system and its calibration method shows clinically acceptable accuracy and the clinical application is the next step.

scholarly journals EFFICACY OF AN AUDIO-VISUAL AID IN IMPROVING KNOWLEDGE AND AWARENESS TOWARDS INFANT ORAL HEALTH CARE FOR EXPECTANT MOTHERS

2020 ◽  
Author(s):  
Chahita Mahesh Lalchandani ◽  
Sandeep Tandon ◽  
Tripti Sharma Rai ◽  
Anupama Kajal
Keyword(s):  
Health Care ◽  
Oral Health ◽  
Oral Health Care ◽  
Visual Aids ◽  
Maternity Hospitals ◽  
Before And After ◽  
Visual Aid ◽  
Expectant Mothers ◽  
The Mean ◽  
Infant Oral Health

Aim: The objective of this study was to evaluate the efficacy of a PowerPoint Presentation in Up-grading the knowledge and awareness towards infant oral health care among expectant mothers. Methods: This was a cross sectional survey conducted in various maternity hospitals throughout Jaipur city, India. A 15 minute PowerPoint Presentation based on infant oral health care was presented to a total of 120 expectant mothers. The participants were made to fill a 15-point questionnaire on the same subject before and after the presentation. Based on a formulated scoring criterion, the knowledge and awareness level of each participant was quantified pre-intervention and post-intervention. The data thus obtained was analysed using descriptive statistics and chi square test, with the level of significance set at P<0.05. Results: There was a very high statistical difference (p=0.000) between the mean scores of the participants before and after the presentation, from 5.55 to 13.96 out of a maximum possible score of 15. The range of scores improved from 0-14 pre-presentation to 9-15 post- presentation. A significant improvement was seen in the mean scores of every socio- demographic group (p=0.000). A relatively high number of participants (85.8%) agreed that the presentation would change how they care for their child in the future. Conclusion: Based on the results of the study, it can be concluded that the use of audio-visual aids is beneficial in improving the knowledge and awareness towards infant oral health care among expectant mothers. Further research can be conducted to evaluate different designs of various audio-visual aids and their long-term efficacy catering to different socio- demographic groups. KEYWORDS Expectant mothers, infant oral health care, awareness, audio-visual aid, pregnant women, maternal awareness

UX Design Guideline for Health Mobile Application to Improve Accessibility for the Visually Impaired

2018 ◽  
pp. 288-309
Author(s):  
Woo Jin Kim ◽  
Il Kon Kim ◽  
Jongoh Kim ◽  
Minji Kim
Keyword(s):  
Mobile Application ◽  
Visually Impaired ◽  
Retinal Disease ◽  
Design Guidelines ◽  
Web Content ◽  
Rare Type ◽  
Ux Design ◽  
Visual Aid ◽  
Accessibility Guidelines ◽  
Content Accessibility

A health mobile application (app) has enabled users to access personal health records at any time and place. As an app provides health service to users, it is crucial for an app to be accessible to every user. However, often an app does not provide proper visual aid for users who are visually impaired. The authors restrict the range of visually impaired to retinitis pigmentosa (RP) patients in this chapter. RP is a rare type of progressive retinal disease that is hard to cure. Unfortunately, there are no established guidelines to assist RP patients in using their degrading sense of vision. In this chapter, the authors review WCAG (web content accessibility guidelines) specified by W3C, analyze the UX designs of 140 popular health apps chosen based on the number of download counts in app stores, and propose a set of standard-compliant UX design guidelines to assist the visually impaired (RP) in accessing visual data and evaluate its compliance compared to WCAG.

Visual Aids for Relating Direct and Inverse Circular Functions

1972 ◽  
Vol 65 (5) ◽  
pp. 431
Author(s):  
William K. Viertel
Keyword(s):  
Inverse Function ◽  
Trigonometric Function ◽  
Visual Aids ◽  
Transparent Material ◽  
Visual Aid ◽  
One To One ◽  
Circular Functions ◽  
Relationship Of ◽  
The Relationship

A visual aid for vividly demonstrating the relationship of the direct and inverse circular functions can be made quite easily and cheaply out of transparent sheets. The principle is simple, and the aid is similar to the graphs that are shown in all trigonometry texts. A graph of a trigonometric function is drawn on transparent material for an interval that makes it a one-to-one function. This graph is then turned over and rotated 90°, so that the x- and y-axes are interchanged and properly directed. The viewer now sees the graph of the inverse function with the proper domain and range.

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