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A change in parameters such as pressure, temperature, consumed energy, vibration and noise indicates a problem in the refrigeration system. In this study, the relationship between vibration and noise measurement values detected in the compressor, one of the refrigeration system equipment, and fault diagnosis was examined. Five different fault cases have been developed. The measured temperature and pressure data, vibration and noise values were transferred to the computer (PC). Fault detection was made from the differences between vibration and noise values in normal and faulty states of the system. It has been observed that noise and vibration values vary depending on the types of faults in the system. Average vibration values are 0,1471 m/s² in normal operating condition, 0,2373 m/s² in dirty condenser, 0,2209 m/s² in clogged expansion valve, 0,2129 m/s² in excess refrigerant charge, 0,2129 m/s² in incomplete refrigerant charge. It was determined as 0,1962 m/s² and 0,2227 m/s² in case of compressor failure. In noise values, 68,1 dB in operating condition, 93,49 dB in dirty condenser, 93,81 dB in clogged expansion valve, 92,42 dB in excessive refrigerant charge, 92,14 dB in incomplete refrigerant charge and 94,5 dB in compressor failure determined. It has been observed that although noise and vibration values are close to each other, they can give an idea about the type of fault. These values showed that fault detection can be made only with vibration and noise measurement values for normal and faulty operating situations. [ABSTRACT FROM AUTHOR]

In this study, the Improved Map Generation Algorithm (IMGA) method is presented to improve traditional methods in procedural map creation. Traditional procedural map generation techniques using noise generation exhibit shortcomings in the consistent composition of a real map with its uniformly distributed features. On the other hand, procedural map creation techniques that use wave function collapse require that some map pieces already exist to create a map. The observed disadvantages were eliminated by using a hybrid technique with the designed IMGA method. The developed algorithm is similar to real maps in terms of the distribution of map regions, does not need 3D model parts, and performs map creation operations without increasing the algorithm's time complexity. The evaluation of IMGA was carried out by coding the method into the Unity game engine. [ABSTRACT FROM AUTHOR]

Objective: The first national and international Social Sciences Festival (Socialfest) of the Republic of Turkey was hosted by Karabük University. This study aimed to investigate noise awareness in individuals attending the Sosyalfest event. Methods: This study was conducted on participants who attended the Socialfest event held on March 2-3, 2024, visited the Noise and Health Association stand and filled out the noise awareness survey. Survey data from one hundred forty-three participants were analyzed retrospectively. Results: Sixty-five participants (45.5%) were female, and 78 (54.5%) were male. The most common (76.9%) participant age range was 19-39. The most common educational level of the participants (70.6%) was an associate or bachelor's degree. The correct answer rate of the participants to the questions ranged between 83.2% and 21.78%. The average rate of correct answers given by the participants to the questions was 57.05%. Conclusion: Our study observed that although most participants were university graduates, their noise awareness and knowledge levels were lower than expected. This shows a general lack of awareness and inadequate understanding of the adverse effects of noise on health. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Uludag University Medical Faculty / Uludağ Üniversitesi Tıp Fakültesi Dergisi is the property of Journal of Uludag University Medical Faculty and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Cavitation, a physical phenomenon that detrimentally affects pump performance and reduces pump life, can cause wear on pump elements. Various engineering methods have been developed to identify the initiation and full development of the cavitation process. One such method is the determination of the net positive suction head (NPSH) through a 3% decrease in total head (Hm) at a constant flow rate. In radial pumps, commonly used in agricultural irrigation and industry, cavitation conditions result in a sudden drop in the Hm-Q curve, making it challenging to detect the 3% Hm value drop. This study differs from others in the literature by modelling NPSH, noise, and vibration levels using three machine learning models, specifically artificial neural networks (ANN), support vector machines (SVM), and decision tree regression (DTR). The best-performing model predicts NPSH, noise, and vibration levels corresponding to a 3% decrease in Hm level. The present study determined the NPSH values of a horizontal shaft centrifugal pump at different flow rates and constant operating speed, and the vibration and noise levels were measured for these NPSH values. For each of the NPSH, noise, and vibration levels, ANN, SVM and DTR models were created. The performances of these models were evaluated using criteria such as root mean squared error (RMSE), Mean Absolute Error (MAE) and mean absolute percentage error (MAPE). In addition, Taylor and error box diagrams were created. The ANN model and DTR yielded high accuracy predictions for NPSH values (R² = 0.86 and R² = 0.8, respectively). The ANN model provided the best prediction performance for noise and vibration levels. By entering the level of 3% drop in the Hm value of the pump as external data input to the ANN model, NPSH3, noise, and vibration levels were determined. The ANN models can be effectively employed to determine NPSH3, noise, and vibration levels, particularly in radial flow pumps, where detecting 3% reductions in manometric height value is challenging. [ABSTRACT FROM AUTHOR]

The number of units in the agricultural trailer and tractor park is increasing day by day. The benches, tools and machines used in the manufacturing processes of these units accelerate the production process in terms of quality and quantity in parallel with the developing technologies. However, this intensive production processes can create vulnerabilities in terms of employee health and work safety. In this study, it is aimed to examine and evaluate the agricultural trailer manufacturing process and some environmental conditions in a case workplace. In accordance with this purpose, benches and machines used in agricultural trailer production at Çanakkale were investigated. Noise and lighting levels during the operation of these machines and benches were determined in a sample workplace. In addition, evaluations were made in order to reduce the effects of the obtained noise and lighting on the employees. When the noise measurement results obtained for machines LAeq (the level of sound pressure) values were in the range of 61.74-93.33 dB(A), Lmax (the level of measured sound pressure) values were in the range of 79.53-94.3 dB(A), and LEX (exposure level) values were in the range of 47.38-80.02 dB(A). Considering the results of the study and the noise regulation, suggestions were made to reduce the effects of noise on workers. Suggestions were presented to protect them from these physical, physiological and psychological effects and to increase their working efficiency. When the measurement data results for the machines were analyzed, it was specified that the maximal illumination value which was found in the hydraulic press machine with 951 lux at Measurement 1 before noon and 1082 lux at Measurement 2 in the afternoon. It was specified that the minimal value illumination was the gas welding machine with 107 lux at Measurement 1 before noon and the lathe with 54.4 lux at Measurement 2 in the afternoon. Based on the information determined within the scope of the study, suggestions were also presented for lighting, luminaire selection, lighting calculation and lighting conditions. [ABSTRACT FROM AUTHOR]

The restricted reserves of fossil-based fuels and the regulations imposed on emission standards increase the importance of renewable fuels. Biodiesel is one of among peripherally friendly and renewable disjunctive fuels and contributes to the reduction of exhaust emissions. Biodiesel fuels have distinctive chemical frames and fuel features compared to conventional diesel fuels based on their substance and production method. Ignition delay, pressure increase rate, and combustion characteristics generate mechanical noises and vibrations in the engine. In compression-ignition engines, high noise and vibration eventuating from the explosive burning have negative effects on the environment and living beings. In this search, the impacts of various proportions of biodiesel fuel and conventional diesel fuel blends on the in-cylinder pressure, vibration, and noise of a three-cylinder water-cooled diesel engine were experimentally investigated. The peak max in-cylinder pressure values for all test fuels were obtained at 15 Nm. For all test fuels, the largest vibration value was obtained at 15 and 60 Nm and the smallest vibration value was obtained at 45 Nm. The engine noise level is reduced up to 45 Nm and increased at 60 Nm. The highest noise level was obtained with conventional diesel fuel (D) at all engine loads. The addition of biodiesel to the test fuels reduced the noise level at all loads. The average noise values of all test fuels are 90.58, 90.28, 90.35, and 90,09 dBA for 15, 30, 45, and 60 Nm loads, respectively.

Copyright of Duzce University Journal of Science & Technology is the property of Duzce University Journal of Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The voltage sag signal is one of the most basic Power Quality (PQ) disturbance events. It is defined as a 0.1-0.9 p.u. per-unit decrease in the normal voltage value. This PQ disturbance signal can cause damage to sensitive devices in the system. Therefore, a detailed analysis of the voltage sag signal is necessary. Harmonic analysis and Total Harmonic Distortion (THD) values are used to determine and analyze this signal in detail. In this study, harmonic magnitudes and THD values of the voltage sag signal with different noise values were investigated. Fast Fourier Transform (FFT) was used to calculate harmonic magnitudes and THD values. It is observed that the harmonic distributions and total harmonic distortion values of the signal at different time intervals change with the variation in noise. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Graduate School of Natural & Applied Sciences of Mehmet Akif Ersoy University / Mehmet Akif Ersoy Üniversitesi Fen Bilimleri Enstitüsü Dergisi is the property of Burdur Mehmet Akif Ersoy University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Düzce University Journal of Forestry / Düzce Üniversitesi Orman Fakültesi Ormancılık Dergisi is the property of Duzce University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of SDU Journal of Engineering Sciences & Design / Mühendislik Bilimleri ve Tasarım Dergisi is the property of Journal of Engineering Sciences & Design and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Ankara University Faculty of Medicine / Ankara Üniversitesi Tip Fakültesi Mecmuasi is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The increase in the world population and rapid urbanization cause different types of pollution such as air, water, soil and noise. Today, this situation significantly affects the quality of life in densely populated settlements both in the world and in Turkey. Noise pollution, which is one of the important types of pollution, especially in urban areas, is increasing day by day due to anthropogenic effects. Studies conducted by the European Noise Directive (END) show that noise pollution is one of the important factors that cause health problems. Parks are places that allow children trapped in the structural environment in urban life to get to know nature and play games in open spaces. In particular, the children's playgrounds in the parks allow children to play and socialize in the open area and also allow parents to rest. However, park users may be exposed to noise pollution due to high-level noises originating from vehicle traffic, user density, and children's playgrounds in these places. This situation adversely affects the physical and mental health of the park users. The aim of the research is to determine the noise level in children's playgrounds in parks and to develop suggestions for reducing this noise level. As a result of the preliminary studies carried out in this context, Antalya/Kepez Dokuma Park was determined as a research area. Zones were created at certain intervals around the children's playground in the research area. And noise levels were measured on weekdays and weekends from the noise measurement points determined in these zones. The results obtained show that the noise pollution caused by the children's playgrounds in the parks and environmental factors is at a high level. In this context, landscape design and planning proposals have been developed to reduce noise pollution from children's playgrounds and environmental factors.

Objective: High sound levels measured in intensive care units cause harmful effects on the health of patients and employees. In this context, the World Health Organization (WHO) recommends sound level values that are safe for health in hospitals. The aim of this study is to compare the sound levels measured before and after the training given to the employees, and to evaluate the sound levels measured in the intensive care unit according to the recommended safe values, retrospectively. Methods: In our unit, sound measurements were made with a noise analyzer (FLUKE model: Biotek: Biotek serial no: 6050274) from 17 different points of the unit at 14 different times per day. Unit employees are given training on the harms of noise and the success of the education is evaluated. In this study, based on the data obtained from the recordings, the 10-day sound level measurements before and after the education were compared. Based on data obtained from hospital records, ten-day sound level measurements before and after training were compared. Results: There was no difference between the measurements made at 17 points within the unit. For this reason, the mean of 17 measurement values was taken and the time-dependent changes of the data were analyzed. After the training, it was observed that there were significant decreases in the mean sound levels in the follow-up at night (p<0.05). However, all these values were above the safe threshold values recommended by WHO for hospitals. Conclusion: Although the behavioral changes provided by the training of the employees in our unit decreased the sound levels in our unit, they could not fall below the recommended safe threshold value. We concluded that safe values can be achieved by using sound reducing barriers in the design of the units and controlling all sources and devices that produce sound. [ABSTRACT FROM AUTHOR]

The year 2020 has been declared as the International Year of Sound with hoping that the importance of hearing sounds will be understood all over the world. On this matter, the results of the "Listen to the Sound of the City, Compose Your Own Sound" workshop organized in Eskişehir were discussed in order to the preference tendencies of sound type in an urban sound environment sample through the soundscape approach in the fight against noise and investigating the relationship of sound types with acoustic identity through this questioning. In this article, the experiences and evaluations of the participants about the sounds of the city were shared and discussed in line with the data obtained in the field study with a participant group of 38 people by the sound walk method in three different routes determined in the urban area which is the busy and important trade and tourism region of Eskisehir city. It has been observed that the participants expected the presence of natural sounds, human and daily life sounds and technological sounds in urban areas. According to this sounds that are accepted as noise in the legislation or whose level exceeds the acceptable limits due to the type of sound source; can be evaluated as desired/preferred sounds when the sounds belong to the urban identity. [ABSTRACT FROM AUTHOR]

Noise pollution is one of the important environmental problems brought about by accelerating urbanization, especially in Altınordu, which is the central district, following the granting of metropolitan status to Ordu province. The number of noise sources such as motor vehicles that contribute to noise pollution is increasing day by day due to the increasing urban population. The Ordu University Cumhuriyet Campus, located on one of the important transportation routes of the Black Sea, can be adversely affected by traffic-related noise pollution. Studies show that high sound pressure levels significantly reduce the efficiency of education in university campuses where education and training activities are carried out at the undergraduate and graduate level. In this context, our study determines the temporal and spatial distribution of the environmental noise level in the case of the Ordu University Cumhuriyet Campus. For this purpose, sound pressure levels were measured in the morning (9.00-10.00), at noon (12.00-13.00) and in the evening (16.00-17.00) throughout the week at pre-determined 25 points in the campus. The obtained data were processed in the geographic information system software and noise maps of the campus were created, and the differences in the noise level on the campus were evaluated with statistical methods. It was determined that the main noise source directly affecting the campus was the E70 highway during the week and only human mobility on weekdays. There is a high negative correlation between the distance to the highway and the equivalent noise level measured in the campus. The highest equivalent noise level average in the campus was recorded at the weekend with 70.3 dB(A) in the north of the campus. The lowest noise level with 40.2 dB(A) was measured in the rectorate parking lot located in the south of the campus at the weekend. In line with the findings of the study, structural and vegetative solutions have been proposed to prevent noise in areas above the legal noise level. The results of the study and the suggestions developed are important in terms of being a guide for university administrators to keep noise levels at reasonable levels. With the implementation of the action plans in line with the suggestions developed, a more convenient learning environment for the students and a more peaceful working environment for the university staff will be created on the campus. [ABSTRACT FROM AUTHOR]

Objective: The aim of this study is to examine and compare the stress levels of premature babies in high and low light and sound environments in a Neonatal intensive care unit (NICU). Materials and Methods: This descriptive comparative study was conducted in the NICU of a university hospital between 2018-2019. The sample consists of 67 premature babies who had been hospitalized in the NICU and were born between 28-37 weeks of gestation. Data were collected with a baby information form and the Newborn Stress Scale. The data were analyzed with the t test, Wilcoxon signed-rank test, MannWhitney U test, and Kruskal-Wallis test over dependent groups, with a p < .05 being considered significant. Results: Of the premature babies, 50.7% were found to be male and 62.7% to have been born between 33-37 weeks of gestation. The babies’ mean stress score (4.48 ± 2.52) in the high light and high noise environment was determined to be significantly higher than their mean under low light and noise levels (1.03 ± 1.95; p = .000). The infants’ average respiratory rate (54.37 ± 12.62) under high light and sound levels were found to be significantly higher than their average in low light and low sound environments (51.25 ± 9.85; p = .03). Stress levels were found to be significantly higher in premature babies whose mothers were not involved in their care and whose gestational age was between 28-32 weeks, and who’d been hospitalized in the 3rd-level unit in a high light and high sound environment (p < .05). Conclusion: The results of the study show the high light and high sound environment in the NICU to have caused stress in premature babies. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Laboratory Animal Science & Practices / Laboratuvar Hayvanlari Bilimi ve Uygulamalari Dergisi is the property of Ataturk University Coordinatorship of Scientific Journals and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

İçten yanmalı motora sahip bir taşıtın sürüş karakteristiğini etkileyen temel parametreler motor devri ve motor yüküdür. Sürücü temelde taşıt hızı ayarlar ve bu ayar için temel kontrol noktası gaz pedalıdır. Gaz pedalına basma miktarı, taşıtın karşılaştığı dirençlere ve vites kademesine bağlıdır. Bu çalışmanın amacı taşıtın temel sürüş parametrelerindeki değişimin titreşim ve gürültüye etkisini deneysel olarak incelemektir. Bu amaçla düz yol koşullarında ve belirli bir vites kademesinde (5. vites) taşıt hızına bağlı olarak titreşim ve gürültü ölçümleri gerçekleştirilmiştir. Taşıt hızına bağlı olarak toplam ortalama titreşim yaklaşık 3 kat, gürültü ise 9,4 dB(A) artmıştır. Ayrıca 50 km/h ve 90 km/h taşıt hızlarında elde edilen veriler 4. vites kademesiyle karşılaştırılmıştır. 5. vitesteki ölçüm sonuçları ile karşılaştırıldığında toplam ortalama titreşim 4. vites kademesinde 50 km/h taşıt hızında %18 ve 90 km/h taşıt hızında %43,4 artış göstermiştir. Gürültü ölçüm sonuçları karşılaştırıldığında ise; her iki vites kademesi arasında dikkate değer bir fark görülmemiştir.

Ore preparation facilities are complex facilities and various wastes in the form of solid, liquid and gas can come out of these facilities. Generally, various chemicals can be found in the wastes that pass through the aqueous processes. According to the type of enrichment method used in the process, the contents of the wastes also change. While some wastes consist entirely of harmless natural stones, some wastes may contain harmful chemicals such as cyanide, sulfur, fatty acid, alcohol and caustic. In such cases, the treatment of waste also differs. A different waste disposal method should be followed for each mine type. In this study, the wastes from the ore preparation facilities, which are also under control with legal sanctions, and the management of wastes are discussed. [ABSTRACT FROM AUTHOR]

Copyright of Hacettepe University Journal of Economics & Administrative Sciences / Hacettepe Üniversitesi Iktisadi ve Idari Bilimler Fakültesi Dergisi is the property of Hacettepe University, Faculty of Economic & Administrative Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Polytechnic is the property of Journal of Polytechnic and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Her geçen gün artan nüfusla birlikte oluşan hızlı ve düzensiz şehirleşme çevresel gürültü sorununu da beraberinde getirmektedir. Öyle ki, Çevresel Gürültünün Değerlendirilmesi ve Yönetimi Yönetmeliği gereğince “eğitim kurumları” gürültü açısından en hassas mekânlardan biri olarak ifade edilmektedir. Bu nedenle, yaklaşık 20.000 kişinin (öğrenci ve personel) gün boyu fiilen bulunduğu Balıkesir Üniversitesi Çağış kampüs ortamının gün içinde maruz kaldığı gürültü seviyelerine ait gürültü haritalarının oluşturulması amaç edinilmiştir. Balıkesir Üniversitesi bünyesinde ilk defa yapılacak olan bu çalışma ile kampüs alanını içerisinde ki hassas noktalar olan fakülteler ve üniversite araştırma hastanesinin maruz kaldığı gürültü kirliliğinin temel kaynakları, incelenen mekânlara ait sabah ve akşam gürültü seviyeleri analiz edilmiş olup elde edilen sonuç ve çözüm önerileri çalışmamızda sunulmuştur. Çağış Kampüs‘ünde en yüksek gürültü seviyelerinin ölçüldüğü yerler (Leq); İktisadi ve İdari Bilimler Fakültesi (İBF) öğrenci kantini 67,3 dB(A), Fen Edebiyat Fakültesi (FEF) öğrenci kantini 66,1 dB(A) gibi sosyal amaçlı ortak kullanım alanlarında gürültü aşımı gözlemlenmiştir. Mühendislik ve Mimarlık fakültesi ve Meslek Yüksek Okulunda sınır aşımı 65 dB(A) olduğu görülmüştür. Ayrıca, Balıkesir Üniversitesi araştırma hastanesi, modellenmiş sonuçları incelendiğinde 60,2 dB(A) ve 62,6 dB(A)’lık bir gürültü kirliliğine maruz kaldığı ve yasal sınırı aşmadığı gözlemlenmiştir.

The direct effect of noise can cause short- and long-term negative effects. Noise, in terms of its effect on human health and behavior; While it causes physical damage to hearing, it can be listed as dephysiological discomfort in the process of body activity, psychological effects such as nervous state and performance effects such as inability to make sense of the sounds heard, which causes a decrease in work efficiency. Some studies are carried out to take precautions against the harmful effects of noise and to prevent its negative effects and to make the act of hearing healthy. Some standards have been developed for the legal regulations on this subject to take place in the venues. There are many studies on noise against these problems emerging in the world. The noise factor is tried to be controlled with the legal procedures and practices prepared. In this study, it was tried to measure the noise levels originating from the workplaces near the settlements, which is one of the external noise sources, and it was aimed to determine the noise sources in the car wash section of a fuel station in Ankara and to develop solution proposals for the prevention of noise. For this reason, a total of 32 noise measurements were made in the daytime and evening time zones in the hospital, which is the structure that can be most affected by noise, by examining the fuel station. The noise level remains within the legal limits, with 1 of the compressors of 2 being shut down in the car wash section of the fuel station. [ABSTRACT FROM AUTHOR]

Gürültü, insanları rahatsız eden ve onlar üzerinde olumsuz etkiler bırakan her türlü ses olarak bilinmektedir. Gürültünün toplumlara göre farklı anlamlar taşıdığı ve bu durumun sosyolojik olarak değerlendirilme gerekliliği öne çıkmaktadır. Bu çalışma sosyal bir olgu olarak gürültünün insan ve onun yaşadığı toplum üzerindeki etkilerine odaklanmaktadır. Modern dünyanın bir temsili olarak kentler; kalabalık nüfuslar, farklı kültürel topluluklar, trafik sesleri gibi gürültü olaylarına sahne olmaktadır. Bu anlamda kentsel alanların sessiz kalma gibi bir lüksü olmadığı gibi sessizliğe erişim de oldukça maliyetli ve zor olabilmektedir. Ayrıca günümüz toplumunda öne çıkan popüler kültür ve müzik gürültünün önemli kaynakları arasında yer almaktadır. Müzikteki ses ve ritim bir hareketlilik sağlarken gürültüyü de onaylayabilmektedir. Müziğin yüksek ses ile dinlenilmesi ve giderek elektronikleşmesi gürültünün müzik alanında kullanıldığını göstermektedir. Gürültü, toplumsal hayatı etkilediği gibi kişilerarası ilişkilere de yansımaları olabilmektedir. Gürültünün, sosyal ilişkilere olumsuz etkileri olmakla birlikte bir iletişim tarzı olarak da kullanılabilmektedir. Çalışma, teorik olarak gürültünün toplumsal hayattaki yerini ve etkisini tartışmaktadır. Sonuçta sosyal bir olgu olarak gürültüye atfedilen anlamlar onun modern dünyanın bir paradoksu olduğunu göstermektedir. Zira bir taraftan modern dünya gürültüyü artırırken ve onaylarken diğer taraftan gürültünün neden olduğu olumsuzlukları kabul etmekte ve bazen çözümler üretme çabasına girmektedir.

Sesin rahatsız edici boyutlara ulaşması olarak tanımlanan ve günümüzde önemli bir çevre sorunu olarak ele alınan gürültü, insan ve çevre sağlığı üzerinde büyük bir tehdit oluşturmaktadır. Kentlerin gelişimine bağlı olarak artış gösteren gürültü problemiyle, günlük hayatta birçok alanda karşılaşılmaktadır. Bu alanlardan birisi de eğlence yerleridir. Eğlence yerlerinde özellikle geç saatlerde gerçekleşen canlı müzik faaliyetleriyle yayılan gürültü, gürültü kaynağı yakınında ikamet eden insanların uyku kalitesini etkileyerek rahatsızlık oluşturması dolayısıyla tepki görmektedir. Bu çalışmada Bursa ili Nilüfer ilçesi Görükle mahallesinde, konut bölgesi yakınında yer alan canlı müzik yayını yapılan eğlence mekanlarının bulunduğu bir sokakta 2019 yılı temmuz-ağustos ayları içerisinde gürültü ölçümleri yapılmıştır. Ölçüm sonuçları Çevresel Gürültünün Değerlendirilmesi ve Yönetimi Yönetmeliği’ne (ÇGDYY) göre incelendiğinde, yönetmelikte izin verilen gürültü aralığının iki noktada aşıldığı gözlenmiş; ölçülen en yüksek gürültü seviyesinin 79,87 dBA ile ağustos, en düşük gürültü seviyesinin ise 66,52 dBA ile temmuz ayında oluştuğu belirlenmiştir. Çalışma kapsamında gürültü azaltımının gerçekleştirilebilmesi amacıyla yapılabilecekler sıralanmıştır.

Copyright of Mersin Üniversitesi sağlık Bilimleri Dergisi is the property of Mersin University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım ve Teknoloji is the property of Gazi University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective: The purpose of this study is to reveal the characteristics of indoor physical environments of schools by means of measuring electromagnetic radiation, lighting, noise, temperature, and humidity and to evaluate the relationship between the physical characteristics with the success of students and absence. Material and Methods: All schools in the Derince region of the city of Kocaeli (n=42) have been included in the survey without selection of a sample and the cross-sectional type of research technique has been employed. For the analysis of the data, correlation analysis (Spearman and Pearson), Mann-Whitney U, and Kruskal Wallis tests have been used. Results: In schools, the electromagnetic field level was measured as 0.53±0.27 mG, the noise level was 57.43±7.77 dB (schoolyard), and the lighting level was 370.11±95.15 luxury. There has been a statistically significant difference detected between the grade point averages of the sixth grades of the schools that comply with the standards of classroom noise level and those that do not (p=0.039). A negatively significant correlation between the classroom lighting level and grade point averages has been detected (respectively; r -0.498 p 0.011; r -0.548 p 0.021; r -0.563 p 0.004). A negatively significant correlation between the building standards points of the schools and the rate of absence of the students has been detected (r -0.371 p 0.011). Conclusion: A significant relationship between the indoor physical environment characteristics in schools and the school success has been found. [ABSTRACT FROM AUTHOR]

Copyright of International Yegâh Music Journal is the property of International Yegah Music Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Noise is an important problem for nurses and patients in hospitals. To exposure noise to may cause negative effects on psychology and performance. The study was designed to determine decibel levels on the hospital’s four unified clinics and compare noise effects to state anxiety levels of patients and nurses. The study was carried out in accordance with the cross-sectional descriptive research feature. Information Form, Spielberger Anxiety Inventory were applied to 40 patients and 14 nurses who are selected by random sampling and are willing to participate in the study. A measurement of the sound level of unified clinics was performed in the morning and after lunch for two days in public hospital. 65% of patients and all of nurses stated that there was noise in the clinic. 48% of patients and 71% of nurses expressed that it caused a headache. The majority of patients and nurses stated that the sources of noise were human and device sounds. The sound levels in the clinics were found to be higher than the sound levels in national and international standards. The state anxiety levels were 39.29 ± 5.61 for nurses and 45.4 ± 4.86 for patients. There was no significant difference between the patient and nurses’ state anxiety scores in terms of clinical sound levels (p > .05). The sound level of the hospital should be ensured to comply with the values recommended by the World Health Organization. The noise control should be provided in hospitals. It has been suggested to investigate the negative psychological effects of noise in particular for nurses and patients in the other studies. [ABSTRACT FROM AUTHOR]

Yüksek tork çıkışı ve yakıt tasarrufu sebebiyle birçok araçta ve ekipmanda kullanılan dizel motorlar, sıkılaşan emisyon standartları sebebiyle üzerinde daha çok çalışması gereken konular arasında yerini almıştır. Bu nedenle dizel motorlardaki katkı maddeleri ile emisyonları azaltmak büyük önem taşımaktadır. Son zamanlarda dizel motorda kullanılan alternatif yakıtlara nanopartiküllerin ilavesi ile emisyon ve performans üzerindeki etkisini ortaya koyamaya çalışan birçok çalışma yapılmıştır. Bunun yanı sıra dizel motorların neden olduğu olumsuz etkilerin arasında yer alan titreşim ve gürültü konusu pek çalışılmamıştır. Bu çalışmada, hacimce %90 dizel yakıtına %10 metanol eklenerek oluşturulan test yakıtına 50 ppm, 100 ppm ve 200 ppm Al2O3 eklenerek 5 farklı test yakıtı oluşturulmuştur. Metal-oksit bazlı nanopartiküllerin eklenmesi ilk olarak biyodizelin setan sayısını ve ısıtma değerini arttırmıştır. Biyodizel-nanopartikül karışımlarındaki daha yüksek oksijen atomları yanma sürecinin kalitesini artırmıştır. Test motoru 2000 rpm sabit motor hızında 2.5, 5, 7.5 ve 10 Nm motor yüklerinde yüklenerek testler gerçekleştirilmiştir. Gerçekleştirilen testlerde metal-oksit bazlı nanopartiküllerin eklenmesi titreşim ve gürültü değerlerinin değişimleri incelenmiştir. Elde edilen çıktılar dizel motorlarda sürdürülebilirlik ve alternatif yakıtların gelişimine katkı sağlayacaktır.

Copyright of Journal of Textiles & Engineers / Tekstil ve Mühendis is the property of Union of Chambers of Turkish Engineers & Architects, Chamber of Textile Engineers and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Polytechnic is the property of Journal of Polytechnic and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective: Noisy environments are a part of the daily life of children, just like adults. Children with hearing loss who wear hearing aids are more susceptible to the negative effects of noise than their normalhearing peers. This study aims to evaluate the speech recognition in noise performance of hearing aid users and compare them with their normal-hearing peers. Material and Method: Five children aged 6-12 years with bilateral moderate to severe symmetrical sensorineural hearing loss and using bilateral behind-the-ear hearing aids were included in the study. 4 different conditions of the Turkish HINT-C were applied, and a speech recognition threshold (SRT) is determined for each condition. Results: Regardless of their age, the SRT needed by children with hearing aids to achieve equal performance with their normal-hearing peers was found to be higher for all test conditions. As seen in children with normal hearing in general, the mean noise front score of the children with hearing loss was higher than the mean noise right and noise left scores. Conclusion: The results of this study revealed that children with bilaterally symmetrical moderate to severe hearing loss achieved poor speech recognition scores in environments similar to the classroom environment, compared to their normal-hearing peers. Our results guided appropriate rehabilitation and follow-up. [ABSTRACT FROM AUTHOR]

Copyright of Geomatik is the property of Murat Yakar and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Today, noise pollution has become an important environmental problem in urban areas. Especially regions with high traffic are at great risk in terms of noise. In this study, the environmental noise level was tried to be determined in Dikkaldırım Neighborhood, which is located in an area close to the biggest park, stadium, residential buildings, education, health and safety institutions of the city in Osmangazi district of Bursa city. Sensitive points in terms of noise were determined around the neighborhood and measurements were made at these points in the morning, afternoon and evening hours on weekdays, Thursdays and Fridays, weekends and Sundays in March-April-May. The results obtained were statistically analyzed and compared according to the Regulation on the Assessment and Management of Environmental Noise (RAMEN), it was determined whether the limit values determined by the regulation were met or not. As a result of the study, it was determined that the level of noise pollution occurred in the range of 60-97 dBA and reached a level that threatens the environment and human health because it is above the current regulation (RAMEN) limits. Various suggestions for noise pollution reduction are presented. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Agriculture & Nature / Kahramanmaraş Sütçü İmam Üniversitesi Tarım & Doğa Dergisi is the property of Kahramanmaras Sutcu Imam Universitesi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Amaç: Diş teknisyenleri iş yerlerinde işitme kaybına neden olabilecek gürültü ve kimyasal tehlikelere maruz kalmaktadırlar. Bu çalışmanın amacı dental laboratuvarlarda çalışan diş teknisyenlerinin mesleki işitme kaybı gelişme riskini araştırmaktır.Gereç ve Yöntemler: Çalışmaya periyodik kontrol için Ankara Meslek Hastalıkları Hastanesi’ne başvuran 105 diş teknisyeni ve 120 kontrol birey dahil edildi. Hem diş teknisyenleri grubunda hem de kontrol grubundaki deneklerin tümü erkekti. Diş teknisyenlerinin odyogramları kontrol grubu bireylerinin odyogramları ile karşılaştırıldı. Verilerin istatistiksel analizi için Mann Whitney U testi ve Spearman korelasyon analizi kullanıldı.Bulgular: Diş teknisyenlerinin her iki kulakta tüm frekanslarda işitme eşik ortalamaları kontrol grubundan istatistiksel olarak anlamlı şekilde yüksek bulundu. Diş teknisyenleri grubunda tüm frekanslarda (250 Hz ve 1000 Hz hariç) işitme eşikleri ve yaş arasında istatistiksel olarak anlamlı bir korelasyon vardı. Kontrol grubunda yalnızca 4000 Hz ve 8000 Hz frekanslarda işitme eşikleri ve yaş arasında istatistiksel olarak anlamlı korelasyon vardı. Diş teknisyenleri grubunda 2, 4 ve 8 kHz frekanslarında maruz kalma süresi ile işitme eşikleri arasında istatistiksel olarak anlamlı korelasyon olduğu saptandı.Sonuç: Bu çalışmanın bulguları işitme kaybının diş teknisyenleri için ciddi bir sağlık sorunu olduğunu göstermektedir. Diş teknisyenleri iş yerlerinde işitme kaybı için risk oluşturabilecek gürültü ve kimyasal tehlikelere maruz kalmaktadırlar. Diş teknisyenleri işitme kaybı açısından çalışma sırasında mutlaka koruyucu önlemler almalıdırlar.

Sayısal teknolojiler gündelik yaşamımızı çevrelemiştir. Bu teknolojilerin her ne kadar insan yaşamını kolaylaştırdığı sık sık dile getirilse de aksaklıklar, kusurlar, hatalar daha geniş anlamda teknik bozulmalar sayısal teknolojilerin doğasına yerleşmiştir. Dolayısıyla gündelik yaşamda bu bozulmalarla karşılaşmak kaçınılmaz bir hal almıştır. Bazen şaşırtıcı bazen de alışılmış bir durum olarak görülen teknik bozulmalar, genelde olumsuz bir durum olarak görülmektedir. Ancak glitch sanatı bu aksaklıklardan faydalanarak hatalara olumlu bir önem atfetmeyi amaç edinir. Glitch kavramı hemen hemen aksaklık anlamına gelmektedir. Glitch sanatı, aksaklıktan ve gürültüden faydalanarak izlerkitlenin aracın farkına varmasını amaçlar. Üstelik bu farkındalıktan pozitif sonuçlar talep eder. Dolaysızlık ise iletişim sürecinde izlerkitleye aracın varlığını unutturmaya yönelik çağdaş bir arzudur. Bu çalışma glitch sanat ve dolaysızlık arasındaki ilişkinin ne olduğunu sorgulamaktadır. Bu iki olgunun özelliklerini tespit ederek aralarındaki ilişkiyi açığa çıkarmak bu çalışmanın genel amacıdır. Bu amaç doğrultusunda literatür tarama tekniği kullanılmıştır. Birinci bölümde glitch kavramının ne anlama geldiğine ve bu kavramla ilişkili olan, Claude Shannon ve Warren Weaver’ın iletişim sürecine dahil ettiği gürültü kavramına odaklanılmıştır. Daha sonra glitch sanatının ne olduğuna değinilmiştir. Bunun ardından Jay David Bolter ve Richard Grusin’in fikirleri doğrultusunda dolaysızlık kavramı açıklanmaya çalışılmıştır. Ayrıca bu bölümde konunun daha iyi anlaşılmasını sağlamak adına hiper dolayım ve düşünümsellik gibi kavramlardan da destek alınmıştır. Son olarak, glitch ve dolaysızlık arasındaki ilişki incelenmiştir. İnceleme sonucunda, bu iki olgunun birbirlerine karşıt eğilimler olduğu görülmüştür.

Noise affects human health from different perspectives (physiological, physical and psychological) and affects performance negatively in work and education. It is known that noise affects human health, health problems and behavioral disorders. For this reason, noise, which has significant effects on human health, has been subject to various studies for many years and various studies have been carried out to determine and control the effects of people on this problem. The noise problem is covered by the legislation all over the world. Important audits have been introduced in various countries. Despite these efforts, it is known that in most countries, the noise problem cannot be solved, the sources of noise are increasing and spreading over areas, and the noise levels and the negative effects are increasing. In this context; The difference between the older and novel arrangement of the Celal Bayar Boulevard, which is the busiest street in Ankara, has been analyzed and the traffic noise has been analyzed. In the selected study area; Until 2016, there was use without underpass and in the light of new regulations (in 2017), environmental noise measurements (Lgündüz, Lakşam, Lgece) were carried out at certain times in accordance with the legislation, vehicle counts were performed and the data and calculations (Lgag) were made. In this context, the current state of the road noise before and after the subway application (May 2016) and after (May 2017) (equivalent continuous sound pressure level-Leq); and analyzed. In the light of the current situation assessment on Celal Bayar Boulevard, measurement analyzes made at two points (points 9 and 10); according to the results obtained before the underpass study; Although the noise was reduced, the noise level was found to be above the limit values in both time periods (2016 and 2017). [ABSTRACT FROM AUTHOR]

Yapılan çalışma ile 2017 yılında Düzce Üniversitesi merkez kampüsünde çalışan akademik ve idari personelin çalıştıkları ofisler ve ofis ortamları analiz edimiştir. Çalışma kapsamında DÜ merkez kampüsünde 12 farklı merkezde 523’ü akademik, 275’i idari personel olmak üzere toplam 798 çalışan çalışmanın evrenini oluşturmaktadır. Çalışmada veri elde etme aracı olarak anket formundan yararlanılmıştır. Çalışmada yararlanılan anket formu araştırmacılar tarafından literatüre bağlı kalınarak geliştirilmiştir. Çalışmada kullanılan anket formu 2 farklı bölümde 17 soru ve 62 yargıdan oluşturulmuştur. Çalışma kapsamında %95 güven düzeyi ve %5 hata payına göre ulaşılması gereken denek sayısı 260 olarak hesaplanmış ve çalışma kapsamında 316 çalışana ulaşılmıştır. Çalışma kapsamında katılımcıların %12,7’sinin ergonomik bilgisayar kullanımı hakında bilgi sahibi olduğu, %43’ünün de ergonomik bilgisayar kullanımı hakkında bilgi sahibi olmadığı belirlenmiştir. Çalışma kapsamında kullanılan ofislerin gerek doğal gerekse de yapay aydınlatılma bakımından iyi olduğu, hava kalitesi bakımından iyi olduğu, ses yalıtımı bakımından çok iyi olduğu, özellikle ofislerin temizliği ve düzenliliğinin ve çalışma alanlarının alansal olarak yeterliliğinin iyi olduğu ve kullanılan masa ve sandalyelerin de antropometrik olarak çalışanlara uygun olduğunu tespit edilmiştir.

Gürültü görüntü işleme tekniklerinin başarısını etkileyen en önemli faktörlerden biridir. Görüntü işleme tekniklerinin başarısını arttırabilmek için gürültünün azaltılması gerekmektedir. Gürültüyü azaltabilmek için görüntülere filtreleme işlemi uygulanmaktadır. Sunulan bu çalışmada, görüntülerdeki karışık gürültüyü giderebilmek için filtre tasarımı yapılmıştır. Görüntüye ilk olarak uyarlamalı medyan filtresi uygulanmış ve görüntüde tespit edilen tuz ve biber gürültüsünün giderilmesi amaçlanmıştır. Tuz ve biber gürültüsü bulunmayan piksellere ise anahtarlamalı Gauss filtresi uygulanmıştır. Tasarlanan anahtarlamalı filtrede Gauss filtresine ait parametre kullanıcı müdahalesi olmadan otomatik olarak belirlenmiştir. Parametrenin belirlenmesinde görüntünün gradyan bilgisi ve eşik değer bilgisinden yararlanılmıştır. Bu amaca yönelik olarak da MATLAB Grafik Kullanıcı Arayüzü (GKA) tasarlanmıştır. GKA yardımıyla tasarlanan filtrenin uygulama sonuçları kameraman ve Lena görüntüleri üzerinde sunulmuştur.

İletişim insanlık tarihi kadar eski, insanoğlunun temel ihtiyaçlarından biri konumundadır. Bu bağlamda iletişim insanlar arasında bilgi aktarım sürecini ifade etmektedir. Bilgi oluşup kullanıma hazır hale geldikten sonra kaçınılmaz bir şekilde iletişim sürecine dahil olarak kaynaktan hedefe aktarılmaktadır. Ancak bilginin aktarım süreci gürültü olarak adlandırılan dış faktörlerle engellenmeye çalışılmaktadır. Gürültü faktörü iletişim sürecini engellediğinde ise toplumsal olarak en istenmeyen davranış modellerinden şiddeti doğurmaktadır. Şiddet faktörü etik açıdan günümüz toplum yaşamından dışlansa da yaşanmakta, hatta sosyal medya gibi platformlarda bile yer bulmaktadır. Nitekim 12 Eylül 2016’da bir kadına şort giydiği için yapılan saldırı, sosyal medyada gürültü faktörü etkisinde kalan kullanıcıların ne denli şiddete yatkın olduğunu göstermiştir. Bu çalışmada Yeni Medya teknolojilerinin ürünü olan Twitter’da ki iletilerin seçilmiş bir kısmı gürültü faktörü açısından incelenmektedir.

Copyright of Academic Journal of Philosophy / Felsefi Düşün is the property of Pinhan Yayincilik and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Noise is environmental pollution that disturbs people and is undesirable in urban life. Apart from environmental pollution such as water, air, soil and solid waste, noise pollution is not very important. In fact, noise causes many disorders in people such as hearing loss, poor performance, inability to focus, lack of focus, mental work, sleep and balance disorder. One of the places where noise occurs is around the schools. Especially with the ringing of the bell, students going to the school garden or entering the building to start the lesson causes intense noise during the game in the garden. On the other hand, this noise reveals many psychological, physiological and physical diseases in people, who are in the houses and shops around the school. In this study, measurements were made to determine the noise level around a primary school in Mudanya district of Bursa and the results were interpreted statistically. The measurements were carried out at two points close to the entrance door to the school garden and the entrance door to the school building, on weekdays monday, wednesday and friday for 5 minutes each. Additionally, measurements were taken during the 10-minute period during the flag ceremonies on monday and friday. The results were compared with the limit values given in the Regulation on the Assessment and Management of Environmental Noise (RAMEN). According to RAMEN, it is stated that the noise values should not exceed 65 dBA during the daytime on the existing roads where there are training areas. The results obtained within the scope of this study were observed to exceed the limit value given in the RAMEN, and various suggestions were made to reduce noise in this region. [ABSTRACT FROM AUTHOR]

Copyright of Dicle University Journal of Engineering / Dicle Üniversitesi Mühendislik Dergisi is the property of Dicle Universitesi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)