scholarly journals Eulerian Video Magnification for Cleaning and Inspection of Air Conditioning Ducts With Rover Robot

Author(s):  
Filipe dos Santos Aureliano ◽  
Alessandro Ferreira Alves ◽  
Rodrigo Franklin Frogeri ◽  
Wanderson Gomes de Souza ◽  
Simone de Paula Teodoro Moreira ◽  
...  

This paper presents a diversied artifice of a Rover robot prototype in order to inspect abnormalities in air conditioning ducts and ventilation through an integrated rotating high-resolution camera system Eulerian Video Magnification is a  method capable of revealing temporal  variations of a body in videos that are impossible to see with the naked eye. Using this method, it is possible to visualize the flow of microorganisms present in the ducts, in which the images are R.W. transmitted in real time to the operator, allowing the cleaning with rotating brushes that adapt themselves  according to the  pipeline geometry, linked to the rover making the removal of impurities which are found on the walls, as well as the application of fungicides and bactericides, and finally the mechanism structure allows the manipulation of small objects held by a claw, which ensures greater operating flexibility compared to existing systems on the market. Due to weather problems being the main responsible for the considerable rise in temperature around the world, this has led man to seek ways by which people have comfort in both residential and industrial context. The most widely used alternative to soften or even solve this problem indoors has been the use of air conditioning systems. Despite the many advantages that these systems provide, there is great concern with the quality of air being supplied to the user according to the procedures and requirements of NBR 15848: 2010.

2017 ◽  
Author(s):  
Antoine Minard ◽  
Christophe Lambourg ◽  
Patrick Boussard ◽  
Olivier Cheriaux

2017 ◽  
Vol 2017 ◽  
pp. 1-16 ◽  
Author(s):  
Zhida Zhao ◽  
Nanyang Yu ◽  
Tao Yu ◽  
Haofei Zhang

Artificial neural network has been widely used in air conditioning systems as an effective method for predicting parameters, and the accuracy of ANN model relies on training data and network structure. In order to increase the quality of chilled water loops model, this paper develops an optimal data processing algorithm combining Kalman filtering with particle swarm optimization to compensate for uncertain factors and disturbances of collected data from the case building and establishes the nonlinear variation trend database. Based on Elman and BP neural networks, this paper proposes the improved network structures to avoid the local optimum predicted value of chilled water loops and increase data training speed. Simulation results show that this algorithm improves the data accuracy of current percentage (CP) of chillers and chilled water temperatures 12% and 9%. Compared with Elman and BP models, mean absolute errors of CP improved models are improved 24.1% and 10.3%, and mean squared errors of water temperature improved models are improved 5.2% and 4.8%. For the purpose of energy conservation control in air conditioning systems, this work has an application value and can be used for predicting other parameters of buildings.


Antiquity ◽  
2001 ◽  
Vol 75 (289) ◽  
pp. 509-510 ◽  
Author(s):  
Emma Loosley

The Limestone Massif of northwest Syria has the largest concentration of late antique churches in the world. All date from between the second half of the 4th century and the first decade of the 7th century and are remarkably consistent in their conformity to a recognizably ‘Syrian’ architectural style. Almost without exception they are apsed basilicas varying only in terms of size and the quality of decoration.This region was extensively surveyed in the 1950s by Georges Tchalenko, whose monumental three-volume study Villages antiques de la Syrie du nord remains the definitive work on the area. Of the many ecclesiastical buildings included in this survey Tchalenko identified a group of approximately 45 churches possessing a bema. The bema is a horseshoe-shaped structure in the nave that mirrors the curve of the apse. Entered via steps at the east end, it provided benches for the clergy and a pulpit at the west end that was used for scriptural expositions and homilies.


Author(s):  
Pastryk T.V.

The article aims to explore the concepts of attitude and expressed emotion in the modern foreign and domestic Psychology.The study applies the method of theoretical comparative analysis. The common and different features of the concepts of attitude and expressed emotion were revealed according to the parameters, particularly content of the concepts, the first application, theoretical approaches and models, methods and measures of the research, subjects, objects and main features.The results of the study indicate that expressed emotion include warmth, hostility, criticism and emotional overwhelming, while attitude is represented by attitude towards self, others and the world. The results also show that attitude is deeply connected with personality’s values, while expressed emotion is mostly related to the attitude towards others. The study indicates that expressed emotion and attitude have a great impact on quality of life of the individuals with medical conditions. The results also indicate that the main features for attitude are modality (negative, positive, ambivalent), range and intensity, while the main features for expressed emotion are modality (positive, negative) and level (high, medium, low). The conclusion of the article underlines that the main problem aligned with expressed emotion study is the many of empirical results and the lack of methodological basis to generalize it. From this perspective the methodological basis for research of the category of attitude is the most appropriate. The prospects of the study are to develop the methodological basis for research of the category of attitude in the context of expressed emotion towards individuals with medical condition.Key words: expressed emotion, attitude, attitude towards self, others and the world, individuals with medical condition. Метою роботи є здійснення теоретичного зіставного аналізу конструкту емоційної експресивності та категорії ставлення в сучасній зарубіжній і вітчизняній літературі. Методом дослідження є теоретичне вивчення літератури в сукупності аналізу, синтезу та узагальнення.Результати дослідження свідчать про те, що категорія ставлення пов’язана із ціннісно-смисловою сферою особистості та визначається ставленням до себе, до інших і до світу. Виокремлено поняття експресивної емоційності як сукупності теплоти, критичності, емоційної гіперопіки та ворожості. Встановлено негативний вплив емоційної експресивності на якість життя особи з хронічними захворюваннями. З’ясовано, що наявні емпіричні дані, представлені в сучасних зарубіжних дослідженнях, важко концептуалізуються через брак єдиного методологічного підходу до дослідження емоційної експресивності, незважаючи на достатню кількість методик для її експериментального вивчення. У висновках дослідження представлено спільні й відмінні ознаки ставлення та емоційної експресивності за такими критеріями, як зміст понять, історія виникнення, теоретичні підходи й моделі, методи дослідження, суб’єкти, об’єкти, параметри. Визначено, що найважливішою відмінністю цих понять є ширший діапазон ставлення порівняно з емоційною експресивністю, а також зв’язок ставлення із ціннісно-смисловою сферою особистості. У цьому контексті вагомого значення набуває поняття самоставлення, яке слугує причиною високого рівня емоційної експресивності щодо інших. Попри можливе існування значної кількості об’єктів ставлення, у контексті нашого дослідження провідного значення набувають об’єкти здоров’я та хвороби, оскільки саме вони пов’язані з рівнем емоційної експресивності. Іншим важливим аспектом є види емоційної експресивності в межах категорії ставлення та їхні параметри. Найбільш поширеними для опису емоційної експресивності вважаються модуси та рівні, тоді як для визначення категорії ставлення оперують параметрами модусу, інтенсивності і широти. Перспективами дослідження є комплексне вивчення емоційної експресивності з виробленням методологічних засад дослідження та з огляду на вивчення категорії ставлення, а також підходи рис особистості, каузальної атрибуції і діатезного стресу.Ключові слова: емоційна експресивність, ставлення, ставлення до себе, ставлення до інших, ставлення до світу, особи з хронічними захворюваннями.


2021 ◽  
Vol 9 (09) ◽  
pp. 319-321
Author(s):  
Rakesh Ranjan

Organizations the world over is increasingly finding themselves coping with the changes taking place in their environment. There are two sets of forces that are changing the once familiar organizational landscape increasing reliance on teams and the changing workforce. This is bringing more and more people from diverse backgrounds into contact with one another. In general, diversity refers to the ways that people in organizations differ. That sounds simple, but defining it more specifically is a challenge because people in organizations differ in many ways-races, gender, ethnic group, age, personality, cognitive style, tenure, organizational function, and more. Managing diversity means establishing a heterogeneous workforce to perform to its potential in an equitable work environment where no member or group of members has an advantage or a disadvantage. Effectively managing diversity helps organizations to identify and capitalize on opportunities to improve products and services, attract, retain, motivate and utilize talented people effectively improve the quality of decision-making at all organizational levels and reap the many benefits from being perceived as a socially conscious and progressive organization. The paper attempts to analyze the mechanism of leveraging and unleash the powerful benefit of a diverse workforce in work organization.


2010 ◽  
Vol 10 (1) ◽  
Author(s):  
Ralf-Peter Vonberg ◽  
Petra Gastmeier ◽  
Björn Kenneweg ◽  
Hinrich Holdack-Janssen ◽  
Dorit Sohr ◽  
...  

2000 ◽  
Vol 122 (01) ◽  
pp. 48-53
Author(s):  
Henry Petroski

This article discusses contribution of engineering technologies through years. It is achievements and advances in engineering that changed all. The development of safe drinking water supplies, sanitary sewer systems, and wastewater treatment schemes drastically reduced diseases that were rampant a hundred years ago, and so reduced infant mortality. Mechanical engineering has changed the quality of life significantly from that of a century ago. Air conditioning, which was developed early in the 20th century to control humidity in plants, factories, and mills where manufacturing processes were affected by too damp a sheet of paper or too dry a spool of thread, was widely domesticated in the second half of the century. Air travel is similarly comfortable and even safer, and few of my generation grow anxious even when flying across the country or around the world. The level of engineering accomplishment and dependability embodied in our terrestrial travel seems to be rivalled only by that achieved in space travel, a distinctly 20th-century engineering achievement.


1988 ◽  
Vol 23 (4) ◽  
pp. i-i
Author(s):  
Paul H. Whitfield ◽  
Evan R. Watt

Abstract This special issue of the Water Pollution Research Journal of Canada highlights some of the recent work of the Water Quality Branch, Environment Canada. The Water Quality Branch operates out of regional offices located in Moncton, New Brunswick; Longueuil, Quebec; Burlington, Ontario; Regina, Saskatchewan, and Vancouver, British Columbia. Many of the issues and problems regarding water quality in Canada are not common to all regions, this is reflected in the diversity amongst the papers that are presented. Water Quality Branch activities range from broad and philosophical water quality considerations to studies of specific basins where water quality problems exist. This special issue consists of papers which touch on a number of these interests. The first two papers consider the design of water quality networks. Two papers consider water quality objectives as a management tool; developing guidelines for pesticides, and developing effective monitoring programs for objectives. Several papers consider problems associated with temporal variations: temporal patterns of acidification in Nova Scotia and Newfoundland, trends in water quality of the St. Lawrence, phosphorus variability in the Flathead River, and changes over time in the St. Croix River. The remaining papers report specific pieces of work reflecting novel methods or procedures: large volume extractors, organic contaminants in suspended sediments, contaminants in water and suspended sediments, and contaminants in surficial sediments. On behalf of the Water Quality Branch, we would like to thank the authors for their contributions to this special issue of the Journal. We would also like to thank the many colleagues who joined with Water Quality Branch staff to review the papers. Special thanks are extended to external reviewers who contributed much to the quality of the papers presented.


2018 ◽  
Vol 17 (1) ◽  
pp. 149-156
Author(s):  
Viacheslav Konkov

Provision of comfortable conditions in the premises with simultaneous optimization of costs throughout the life cycle of the building was the main objective of the study. The analysis of the world engineering practice of troweling compounds with high moisture-regulating ability is performed. Information on the features of the manufacture of plasters with moisture-regulating ability is given. Usage of expanded aggregates that have the ability to quickly collect, store, and then slowly release moisture is an effective way to regulate moisture in living areas of buildings under construction as well as of newly erected ones. As a result of this study, it has been shown that it is possible to produce environmental control in residential premises not only through the operation of costly air conditioning systems that consume a significant amount of power, but also by using accumulating and easily releasing moisture building materials, providing a dampening effect. Studies have been carried out and troweling compounds with a high moisture-regulating ability with the use of domestic components have been developed, allowing, in addition to the above-mentioned purposes, to reduce the risk of water vapour condensation on the walls and the occurrence of fungi and mould in the room.


Water ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1696
Author(s):  
Lubna Siam ◽  
Issam A. Al-Khatib ◽  
Fathi Anayah ◽  
Shehdeh Jodeh ◽  
Ghadir Hanbali ◽  
...  

As the need for water is increasing in Palestine, and the available water resources are barely sufficient to meet the demands of the current quality of life and the economy, air conditioner condensate water could be explored as an alternative water source. The objective of this study is to better understand the potential for recovery of condensate water from air conditioning systems in two Palestinian cities. In addition, this study aims to evaluate this water source in terms of quality and quantity. Generally, it was found that the condensate water has good quality, which conforms to the Palestinian standards for reused water for irrigation, except for turbidity, biological oxygen demand (BOD) and chemical oxygen demand (COD) measurements. Reflecting the heavy metal occurrence in the collected condensate water, no particular risk was recognized for drinking water or reused irrigation standards, except for manganese occurrence of 0.19 mg/L in one sample. From a single unit capacity, high quantities of water were observed of approximately 259 L and 453 L per month in Ramallah and Jericho cities, respectively. These figures should draw the attention of decision and policy makers to put in place strict technical guidelines to be followed for potential reuse of condensate water at the local level.


Sign in / Sign up

Export Citation Format

Share Document