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Journal articles on the topic 'Air-jacket'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Suwondo, Edy Warsopurnomo, and Ahmad Muchlisin. "FAKTOR-FAKTOR PENYEBAB RETAKNYA JACKET COOLING DI CYLINDER MAIN ENGINE MT. SEI PAKNING." Dinamika Bahari 8, no. 2 (2018): 2029–44. http://dx.doi.org/10.46484/db.v8i2.74.

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Jacket cooling sebagai selimut cylinder liner dan cylinder cover yang didalamnyaberupa air pendingin (air tawar) dengan temperatur tertentu yang digunakan untukmenyerap panas yang dihasilkan oleh pembakaran bahan bakar di dalam silinder. Faktoryang mempengaruhi keretakan jacket cooling main engine di bagian cylinder cover sebagaiberikut: (a) Pemasangannya (instal), (b) Usia dari material (running hours), (c) Temperaturdan tekanan air pendingin, (d) Perawatan (maintenance), (e) Kualitas air pendingin, (f)Kebocoran pada seal jacket yang sudah diketahui tetapi tidak dilakukan tindakanpenanganan (

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2

Sumarno P.S., Dwi Prasetyo, and Saiful Hadi Prasetyo. "IDENTIFIKASI PENYEBAB KERUSAKAN SEAL CARGO PUMP DALAM PROSES DISCHARGING MUATAN KIMIA CAIR." Dinamika Bahari 8, no. 2 (2018): 2045–62. http://dx.doi.org/10.46484/db.v8i2.75.

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Jacket cooling sebagai selimut cylinder liner dan cylinder cover yang didalamnyaberupa air pendingin (air tawar) dengan temperatur tertentu yang digunakan untukmenyerap panas yang dihasilkan oleh pembakaran bahan bakar di dalam silinder. Faktoryang mempengaruhi keretakan jacket cooling main engine di bagian cylinder cover sebagaiberikut: (a) Pemasangannya (instal), (b) Usia dari material (running hours), (c) Temperaturdan tekanan air pendingin, (d) Perawatan (maintenance), (e) Kualitas air pendingin, (f)Kebocoran pada seal jacket yang sudah diketahui tetapi tidak dilakukan tindakanpenanganan (

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3

Abou Taleb, F. S., and J. A. Al-jarrah. "Experimental Study of an Air Lift Pump." Engineering, Technology & Applied Science Research 7, no. 3 (2017): 1676–80. http://dx.doi.org/10.48084/etasr.1207.

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In this investigation the effect of submergence ratio and air jacket on the performance of the air lift pump has been studied. Three types of air jackets in addition to five levels of submergence ratios were used. Each air jacket has a number of drilled holes distributed uniformly at the perimeter of the inside pipe, where the total area of drilled holes was kept constant. It has been found that the water flux increases as the submergence ratio increased. Also it was found that the minimum air flux required to start discharging water from the pump decreases as the submergence ratio increases.

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4

Abou, Taleb F. S., and J. A. Al-jarrah. "Experimental Study of an Air Lift Pump." Engineering, Technology & Applied Science Research 7, no. 3 (2017): 1676–80. https://doi.org/10.5281/zenodo.809261.

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In this investigation the effect of submergence ratio and air jacket on the performance of the air lift pump has been studied. Three types of air jackets in addition to five levels of submergence ratios were used. Each air jacket has a number of drilled holes distributed uniformly at the perimeter of the inside pipe, where the total area of drilled holes was kept constant. It has been found that the water flux increases as the submergence ratio increased. Also it was found that the minimum air flux required to start discharging water from the pump decreases as the submergence ratio increases.

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5

Li, Youyi, and Tianhao Tang. "Performance Analysis and Optimization of a Series Heat Exchangers Organic Rankine Cycle Utilizing Multi-Heat Sources from a Marine Diesel Engine." Entropy 23, no. 7 (2021): 906. http://dx.doi.org/10.3390/e23070906.

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Organic Rankine Cycle (ORC) is an effective way to recycle waste heat sources of a marine diesel engine. The aim of the present paper is to analyze and optimize the thermoeconomic performance of a Series Heat Exchangers ORC (SHEORC) for recovering energy from jacket water, scavenge air, and exhaust gas. The three sources are combined into three groups of jacket water (JW)→exhaust gas (EG), scavenge air (SA)→exhaust gas, and jacket water→scavenge air→exhaust gas. The influence of fluid mass flow rate, evaporation pressure, and heat source recovery proportion on the thermal performance and econo

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6

Chen, Yu, Yun Bing He, and Tao Wang. "Analysis of Water Jacket Furnace Air Coil Blockage." Applied Mechanics and Materials 233 (November 2012): 396–400. http://dx.doi.org/10.4028/www.scientific.net/amm.233.396.

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Water Jacket Furnace is a kind of indispensable equipment in the process of oil and gas field production, gathering and transportation. It is mainly responsible for the warming and energy supply of gathering and transportation system. After production, the oil of natural gas firstly enters the Water Jacket Furnace for pressure regulation, thermal insulation and then received the processing of separation, filtration, pressure regulation and metering; natural gas containing more impurities will gradually form sediment and eventually block the snakelike coil, resulting in Water Jacket Furnace hea

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7

Oktavianto, Iqbal Dwi, Eko Prayitno, Kuntoro Bayu Ajie, Shofa Dai Robbi, and Monika Retno Gunarti. "Identifikasi Penyebab Kebocoran Pada Jacket Cooling Fresh Water Main Engine Tipe Man B&W 6L35MC di MT.Tirtasari." RIGGS: Journal of Artificial Intelligence and Digital Business 4, no. 2 (2025): 3422–27. https://doi.org/10.31004/riggs.v4i2.1033.

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Jacket cooling main engine adalah sistem pendingin yang terletak antara dinding silinder dan blok silinder. Fluida pendingin mengalir di area ini untuk menyerap panas dari dinding silinder, lalu bersirkulasi. Penelitian dilakukan karena adanya kebocoran pada jacket cooling main engine yang menyebabkan kapal berhenti untuk perbaikan. Tujuan penelitian adalah untuk mengetahui faktor penyebab kebocoran, dampak yang terjadi, dan upaya yang diambil untuk mengatasi masalah ini. Data dikumpulkan melalui observasi, wawancara, dan studi pustaka. Hasil penelitian menunjukkan bahwa kebocoran disebabkan o

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8

Awais, Muhammad, Sybille Krzywinski, and Yordan Kyosev. "Numerical Investigation of the Air Gap Distribution of Jackets with Different Fits and its Influence on Human Temperature." Fibres and Textiles in Eastern Europe 29, no. 6(150) (2021): 77–86. http://dx.doi.org/10.5604/01.3001.0015.2727.

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The air gaps underneath clothing have a great influence on the thermal regulation of the human body. The distribution of the air gaps depends on the shape of the human body as well as on clothing style, fit, and deformation properties. This paper reports on the influence of clothing fit on thermophysiological parameters of the human body through thermal simulation. Four different fits of jacket and a test person were considered for the investigation and for simulation purposes. The results of the simulation concluded that different thermal regulations of the human body were exhibited for diffe

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9

Burmistrova, Olga V., Sergey Yu Perov, and Tatyana A. Konshina. "Comparative physiological and hygienic assessment of the personal protective equipment EP-4(0) in the various assembly according to human thermal state indices." Hygiene and sanitation 100, no. 3 (2021): 229–33. http://dx.doi.org/10.47470/0016-9900-2021-100-3-229-233.

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Introduction. The article presents results of the study of the impact of the personal protective equipment EP-4 (0) in various assembly (overalls, jacket and trousers, jacket and semi-overall) from power frequency electric field and electrical shock on the thermal state of workers in a heating environment at air temperature 34.8 ○C and relative humidity 48%. Materials and methods. The study involved three men aged 35.3±4.6 years. They did the physical exercise for 40 minutes, had comfortable relaxation for 30 minutes after work. Recorded indices included skin temperature and moisture sensation

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10

Anusha, Dr P., Dr M. Naga Swapna Sri, and V. Sravani. "Experimental Reduction of Condenser Exit Temperature in VCR System with Condenser Jacket." YMER Digital 21, no. 02 (2022): 474–87. http://dx.doi.org/10.37896/ymer21.02/47.

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The Air Conditioner’s condenser chamber releases hot air into the environment which leads to increase in temperature which has a great impact on the environment. The exhaust air produced in the air conditioner was hot air, which led to an increase in global warming and a decrease in the ozone layer. The role of the Condenser jacket is to cool down the hot air that released from the condensers outlet unit. The mud glass and dry grass inserted in the aluminium mesh which absorbs the hot air with the help of water. So the hot air turns to cold and leads to a reduction in global warming due to was

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11

Duan, Dongyu, Jie Zhang, Ying Li, and Quanzhao Sun. "Simulation Study of Structural Factors Affecting the Performance of Thermal Jacket for Gun Tubes." Journal of Physics: Conference Series 2478, no. 12 (2023): 122050. http://dx.doi.org/10.1088/1742-6596/2478/12/122050.

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Abstract Most of common thermal jackets for gun tubes are composite types, which have large mass and complex structures. With the development of material technology, a single-layer thermal jacket using new composite materials with low thermal conductivity has good protection effects on gun tubes. The design of a single-layer thermal jacket requires consideration of thickness, air gap, material properties and structural strength. In order to study the structural factors that affect the performance of the single-layer heat jacket, the models of various structural dimensions through a 3D modeling

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12

Pongtaveesap, Thongchai, Surapong Chirarattananon, Robert H. B. Exell, and Pipat Chaiwiwatworakul. "Air Flow in a Hot Water Induced Stack Subject to Wind Disturbance." Advanced Materials Research 622-623 (December 2012): 1564–69. http://dx.doi.org/10.4028/www.scientific.net/amr.622-623.1564.

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This paper reports results of an experimental and theoretical study of the air flow in a vertical stack driven by thermal buoyancy and induced by surrounding wind. Tubular stacks with water jacket were constructed for experiments. To investigate the effect of the buoyancy force on the air flow, hot water was circulated through the stack jacket each experimental case with a different temperature. The effect due to the surrounding wind was studied using a wind tunnel to produce wind at different velocities. In this study, a simple model was developed to characterize the air flow caused by the ef

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13

Atifah, Nailul, Bambang Herlambang, Edi Tri Astuti, Yayan Mulyana, and Perdamean Sebayang. "ANALISIS PERPINDAHAN PANAS PADA WATER JACKET DI RUANG BAKAR PRIMER INCINERATOR SAMPAH KOTA." Jurnal Teknik Mesin Cakram 3, no. 2 (2020): 63. http://dx.doi.org/10.32493/jtc.v3i2.7519.

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Telah dilakukan penelitian mengenai analisis perpindahan panas pada water jacket di ruang bakar primer incinerator sampah kota. Analisis perpindahan panas dilakukan ketika water jacket berada dari fase cair hingga mencapai titik didihnya, yaitu 100 oC, Suhu api pembakaran diasumsikan seragam berdasarkan hasil pengukuran api ruang bakar diperoleh nilai stabil yakni 1097 oC. Variasi debit aliran water jacket adalah 300, 400, 500, dan 600 liter/jam. Tujuan penelitian ini adalah untuk mengetahui bagaimana kenaikan suhu dan karakteristik perpindahan panas pada water jacket dan pengaruh variasi debi

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14

Ratjen, F., R. Zinman, and M. E. Wohl. "A new technique to demonstrate flow limitation in partial expiratory flow-volume curves in infants." Journal of Applied Physiology 67, no. 4 (1989): 1662–69. http://dx.doi.org/10.1152/jappl.1989.67.4.1662.

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Partial expiratory flow-volume (PEFV) curves in infants are generated by applying a compressive pressure over the chest wall with an inflatable jacket. This study addresses two issues: pressure transmission to and across the chest wall and whether flow limitation can be identified. Eleven infants sedated with chloral hydrate were studied. Pressure transmission to the chest wall, measured with neonatal blood pressure cuffs placed on the infant's body surface, was 72 +/- 4% of jacket pressure during compression maneuvers. The pressure transmission to the air spaces, determined by measuring airwa

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15

Tan, Lei, Changhong Hu, and Yingyi Liu. "Numerical simulations of towing a jacket foundation with triple buckets." IOP Conference Series: Materials Science and Engineering 1288, no. 1 (2023): 012033. http://dx.doi.org/10.1088/1757-899x/1288/1/012033.

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Abstract Offshore wind energy is developing fast as a promising renewable energy resource that can be helpful in achieving the global net-zero emissions goal. In recent years, offshore wind turbine projects have gradually moved towards far-offshore sea areas, where massive jacket foundations with suction buckets are suitable options. To reduce transportation costs, the wet-towing method is usually favourable since the required buoyancy of the foundation can be provided by the air cushions in the suction buckets. This engineering background brings us a research topic that involves towing and ai

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16

Jia, Bu Chao, Hong Yu Liu, Qing Bo Mu, and Jian Qiao Ma. "Calculation and Optimization of Cable Connector Electric Field Intensity in High Speed Rail Based on Finite Element." Advanced Materials Research 1070-1072 (December 2014): 1175–78. http://dx.doi.org/10.4028/www.scientific.net/amr.1070-1072.1175.

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When high speed rail run at high altitudes, over-voltage occurred in the process of operating makes the air gap of cable connector breakdown. It is necessary to clear the electric field intensity distribution and its numerical size of cable connector to make an optimization in order to curb this phenomenon. For this reason, 1:1 finite element model is established by the use of ANSYS software, and the simulation results show that the maximum value of the electric field intensity of cable connector can reach 644.05 kV/m. The maximum electric field is reduced with adding an insulating jacket to t

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17

Foeh, Nancy, Cynthia D. Gaina, Alan Prima Titong, Crecentia A. Butta, and Maria S. B. Bei. "DAYA TAHAN SPERMATOZOA DALAM SEMEN CAIR BABI LANDRACE PADA METODE PENYIMPANAN BERBEDA." JURNAL KAJIAN VETERINER 7, no. 1 (2019): 47–52. http://dx.doi.org/10.35508/jkv.v7i1.852.

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Tujuan dilaksanakan penelitian ini untuk melihat pengaruh metode penyimpanan preservasi yang berbeda terhadap viabilitas spermatozoa semen babi landrace dalam pengencer alami air buah lontar (AL) dengan penambahan kuning telur ayam kampung (KT). Semen diambil dari 5 ekor pejantan landrace yang telah dewasa kelamin. Setelah itu dilakukan pemeriksaan makros-mikros dari semen segar, semen dengan kriteria motilitas , konsentrasi dan abnormalitas spermatozoa berturt-turut: >70%, >200 juta spermatozoa/ml, <20% yang layak untuk dijadikan semen cair. Perlakuan dalam penelitian:, P1(AL 95%+5%

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18

Adamczyk, Jerzy. "Fireplaces supporting central heating." Budownictwo i Architektura 12, no. 4 (2013): 127–34. http://dx.doi.org/10.35784/bud-arch.1968.

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19

Alasadi, Ali Abdul Mohsin Hasan, and Ahmed Khalid Habeeb. "Analytical and Experimental Investigation for the Effect of Air Injection Angle on the Performance of Airlift Pump." Journal of Engineering 22, no. 12 (2016): 118–38. http://dx.doi.org/10.31026/j.eng.2016.12.08.

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The effect of air injection angle on the performance of airlift pump used for water pumping has been studied analytically and experimentally. An airlift pump of dimensions 42mm diameter and 2200 mm length with conventional and modified air injection device was considered. A modification on conventional injection device (normal air-jacket type) was carried out by changing injection angle from 90 (for conventional) to 45 and 22.5 (for modified). Continuity and one-dimensional momentum balance for the flow field with basic principle of two-phase flow and expressions of slip ratio and friction fac

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20

M P, Prof Kishore. "BIKE RIDER SAFETY SYSTEM USING STM 32 MICROCONTROLLER." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 05 (2024): 1–5. http://dx.doi.org/10.55041/ijsrem34727.

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This study focuses on the development of an innovative safety jacket designed for horse riders, high-altitude workers, and particularly two- wheeler riders to mitigate the impact of accidents and enhance life-saving measures. Given the high incidence of road accidents in India, with 499,628 reported in 2010 leading to 134,513 fatalities and over 500,000 injuries, the need for improved safety mechanisms is critical. The proposed safety jacket integrates a micro controller-based system to detect falls and trigger an emergency response, inflating air cushions around the jacket to cushion impacts.

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21

Cho, Soonmo, Euntaek Lee, Seunggi Jo, Gyu Man Kim, and Woojin Kim. "Extrusion Characteristics of Thin Walled Tubes for Catheters Using Thermoplastic Elastomer." Polymers 12, no. 8 (2020): 1628. http://dx.doi.org/10.3390/polym12081628.

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As the market for minimally invasive surgery has grown, the demand for high-precision and high-performance catheters has increased. Catheters for the diagnosis and treatment of cardiovascular or cerebrovascular disease mainly use a braided wire tube with a polymer inner liner and outer jacket to improve the pushability and trackability. The outer jacket should have an accurate inner and outer diameter and while maintaining a wall thickness of 150 µm or less. In this study, we designed and manufactured a tip and die capable of extruding an outer jacket with a wall thickness of 150 µm or less us

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22

Nizam, M. Jufri, and Syahrizal Syahrizal. "MODIFIKASI SISTEM PENDINGIN MESIN DIESEL MERK DONGFENG MENGGUNAKAN HEAT EXCHANGER UNTUK KAPAL MOTOR NELAYAN." INOVTEK POLBENG 8, no. 1 (2018): 80. http://dx.doi.org/10.35314/ip.v8i1.306.

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Modifikasi sistem pendingin mesin diesel merk dongfeng menggunakan heat exchanger untuk kapal motor nelayan bertujuan untuk menjaga temperatur air pendingin pada range 60°C-90°C serta menggantikan metode sistem pendingin terbuka yang dinilai kurang efesien dan banyak menimbulkan dampak negatif bagi mesin seperti korosi dan temperatur air pendingin pada water jacket dibawah standar yang ditentukan. Modifikasi yang penulis lakukan dirancang menggunakan heat exchanger sebagai alat penukar kalor air tawar ke air laut. Berdasarkan hasil pengujian terhadap alat yang dirancang didapatkan hasil nilai

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23

Schnell, Michael, and Frank Gauterin. "Acoustic effects of the coolant mass flow of an electric machine of a hybrid drive train." Automotive and Engine Technology 4, no. 3-4 (2019): 189–93. http://dx.doi.org/10.1007/s41104-019-00053-x.

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Abstract In this application paper, the influence of the coolant mantle on the acoustic radiation behaviour of a hybrid drive train is investigated. This was done on an electric machine on an acoustic component test bench. The coolant mass flow around the electric machine stator was varied and then completely drained. The electrical machine remained mechanically unchanged; any variations were made to the feed pumps on the test bench side. Triaxial acceleration sensors are glued to the machine housing and reviewed as evaluation criteria. For the evaluation, the square mean value of all three sp

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24

Pratiwi, Ayudya Suidarwanty, Boyke Mulyana, and Dikdik Zafar Sidik. "MEDIA WEIGHTED JACKET DAN WEIGHTED BELT UNTUK KEKUATAN TUNGKAI ATLET POLO AIR : STUDI LITERATUR." COMPETITOR: Jurnal Pendidikan Kepelatihan Olahraga 12, no. 3 (2020): 151. http://dx.doi.org/10.26858/cjpko.v12i3.14421.

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Water polo is a full body contact sport. It is the combination of swimming, rugby, soccer, and basketball. The basic skills to be mastered in water polo are swimming, water trapping, and ball controlling using hands while floating in the water supported by egg-beater foot movement, where the leg endurance is the main point to perfect this technique. Athletes need leg endurance to float and swim during the game. This study is a literature review aimed at analyzing water polo athletes’ training using weighted jacket and weighted belt in water on their strength and leg endurance. The data were co

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25

Burmistrova, Olga V., Sergey Yu Perov, and Tatyana A. Konshina. "Comparative physiological and hygienic assessment of personal protective equipment properties in various configurations from power frequency electric field." Russian Journal of Occupational Health and Industrial Ecology 60, no. 9 (2020): 600–604. http://dx.doi.org/10.31089/1026-9428-2020-60-9-600-604.

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Modern working conditions of employees can be characterized by the presence of harmful factors of the working environment, including physical factors that often have a complex effect on the human body during the working shift. One of the main harmful factors of the working environment for electrical personnel is the electric field of industrial frequency, which is protected by personal protective equipment (shielding kits), which exerts an additional thermal load on the body of personnel when working outdoors in the summer. The aim of the study was a comprehensive assessment of personal protec

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26

Wu, Pey-Shey, Min-Fu Hsieh, Wei Ling Cai, et al. "Heat Transfer and Thermal Management of Interior Permanent Magnet Synchronous Electric Motor." Inventions 4, no. 4 (2019): 69. http://dx.doi.org/10.3390/inventions4040069.

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Geometric complexities and multi-physical phenomena add difficulties for predicting the thermal field and hence thermal management of an electric motor. A numerical design model that combined electromagnetic and thermal-fluid analysis was proposed for disclosing the detailed temperature distributions of each component in an electric motor. The thermal fluid analysis implemented ANSYS-Fluent code to unravel the thermal field of the interior permanent magnet synchronous electric motor fitted with a smooth or novel spirally twisted channel in the cooling water jacket of a stator with and without

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27

Alyavdin, Dmitriy, Vladimir Belyakov, Artemiy Levin, et al. "Reline Jacket: Efficient Reduction of Frost-Heave Uplift of Piles in Warming Permafrost." Geosciences 12, no. 9 (2022): 313. http://dx.doi.org/10.3390/geosciences12090313.

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Air temperature in the Northern Hemisphere has been progressively warming in the recent decades, and the ground temperatures have increased correspondingly. The air temperature increasing due to the climate change induces degradation of permafrost and frost heaving activation. The frost heaving forces cause unevenly distributed damaging displacement of foundations and thus poses problems to the development of Arctic regions. Frost-heave uplift forces can be reduced by protecting piles with an OSPTReline (or Reline) polymer heat-shrinkable jacket. The interaction of heaving soil with a pile cov

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Na, Youngjoo, and Jisu Kim. "Abuse of empire style robe to thermal insulation and body discomfort (part 2)." International Journal of Clothing Science and Technology 29, no. 3 (2017): 436–50. http://dx.doi.org/10.1108/ijcst-06-2016-0068.

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Purpose Women in Western Europe wore empire style robes which were made with a light and thin fabric revealing their body. To stress the silhouette of their body, they applied oil to it or sprayed water on the robe so that it would cling to the body, and most women suffered from muslin disease, meaning flu and tuberculosis of the lungs in winter season. The purpose of this paper is to examine the thermal insulation of the robe with spencer jacket in dry and wet environment through thermal manikin experiments. Design/methodology/approach Three kinds of spencer jacket were made based on historic

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29

Ammar, N. R., and I. S. Sediek. "Thermo-Economic Analysis and Environmental Aspects of Absorption Refrigeration Unit Operation Onboard Marine Vehicles: Ro- Pax Vessel Case Study." Polish Maritime Research 25, no. 3 (2018): 94–103. http://dx.doi.org/10.2478/pomr-2018-0100.

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Abstract Marine diesel engines lose a huge amount of fuel heat content in the form of exhaust gas and jacket cooling water, especially onboard high-powered marine vehicles such as Ro-Pax ships. In this paper, the possibility of using the waste heat of marine diesel engines as a source of heat for air conditioning absorption system is investigated. The thermodynamic analysis, in addition to the environmental and economic analysis of the air condition absorption cycle operated with two heat sources using lithium bromide as absorbent, are performed using the Engineering Equation Solver (EES) soft

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30

Riba, Jordi-Roger, and Jordi Llauradó. "A Model to Calculate the Current–Temperature Relationship of Insulated and Jacketed Cables." Materials 15, no. 19 (2022): 6814. http://dx.doi.org/10.3390/ma15196814.

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This paper proposes and validates using experimental data a dynamic model to determine the current–temperature relationship of insulated and jacketed cables in air. The model includes the conductor core, the inner insulation layer, the outer insulating and protective jacket and the air surrounding the cable. To increase its accuracy, the model takes into account the different materials of the cable (conductor, polymeric insulation and jacket) and also considers the temperature dependence of the physical properties, such as electrical resistivity, heat capacity and thermal conductivity. The mod

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31

Janushevskis, A., S. Rajni Vejanand, and A. Gulevskis. "Air Flow Analysis for Protective Clothing Ventilation Elements with and Without Constant Cross-Section Area Opening." Latvian Journal of Physics and Technical Sciences 60, no. 2 (2023): 63–73. http://dx.doi.org/10.2478/lpts-2023-0012.

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Abstract In this paper a ventilation element is designed with the constant cross-sectional area of 3.14 mm2 with the outer ring, to study the efficiency of ventilation at three different inlet air velocities (2, 5 and 8 m/s). There are five different cases analysed in the study, in which four cases are with different coordinate values of outer ring and core while the fifth case is studied with ventilation element without outer ring. The results of all five cases are analysed and compared to see the efficiency of ventilation element design. These ventilation elements are attached at ventilation

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32

Zhang, Pu-yang, Xin Qi, Yu-mo Wei, Sheng-wei Zhang, Cong-huan Le, and Hong-yan Ding. "Hydrodynamic Characteristics of Three-Bucket Jacket Foundation for Offshore Wind Turbines During the Lowering Process." China Ocean Engineering 37, no. 1 (2023): 73–84. http://dx.doi.org/10.1007/s13344-023-0007-5.

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AbstractThe three-bucket jacket foundation is a new type of foundation for offshore wind turbine that has the advantages of fast construction speed and suitability for deep water. The study of the hoisting and launching process is of great significance to ensure construction safety in actual projects. In this paper, a new launching technology is proposed that is based on the foundation of the three-bucket jacket for offshore wind turbine. A complete time domain simulation of the launching process of three-bucket jacket foundation is carried out by a theoretical analysis combined with hydrodyna

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33

Sunil, Mahto, and Kumar Saha Ashish. "Investigation on Heat Balance, Volumetric Efficiency, and Air-Fuel Ratio of Karanja Oil using Hydrogen Gas in a Dual Fuel Diesel Engine." International Journal of Innovative Science and Research Technology (IJISRT) 9, no. 12 (2025): 2621–37. https://doi.org/10.5281/zenodo.14613875.

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The continuous increase in global energy demand, combined with the dependence on finite fossil fuel resources, the rise in exhaust emissions, and the challenges of climate change, has led to extensive research into alternative fuels. Biodiesel and its blends are considered among the most suitable and practical alternatives for diesel engines. This study examines the performance of a dual-fuel diesel engine using pure diesel and various compositions of biodiesel produced from Karanja oil (BKO) in combination with hydrogen. The physicochemical properties and performance characteristics of biodie

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Pasaribu, F. I., and I. Roza. "Design of control system expand valve on water heating process air jacket." IOP Conference Series: Materials Science and Engineering 821 (May 29, 2020): 012050. http://dx.doi.org/10.1088/1757-899x/821/1/012050.

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Pitanova, Thasyah, Mulya Juarsa, and Dwi Yuliaji. "RANCANGAN DAN KONTRUKSI WATER-JACKET COOLER PADA ALAT EKSPERIMEN USSA-FTS01." ALMIKANIKA 4, no. 2 (2022): 52–57. https://doi.org/10.32832/almikanika.v4i2.7051.

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ABSTRAK Water Jacket Cooler merupakan komponen dari alat uji untai simulasi sirkulasi alam. Memiliki fungsi sebagai penyerap panas pada pipa untai. Desain dan rancang bangun water jacket cooler telah dilakukan dengan menggunakan prinsip tabung bejana tekan. Spesifikasi material menggunakan mild steel ASTM A36, volume bejana 4 liter, jumlah aliran 3 phase. Pengujian dilakukan dengan memberikan udara bertekanan ke dalam tabung WJC USSA-FTS01 dengan variasi 0,5 bar sampai dengan 5 bar kemudian hasilnya dicatat. Tegangan aktual material , tegangan longitudinal , tegangan tangensial , tegangan long

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Lisuch, Julius, and Jaroslav Gonos. "Use of Logistic Approach in Optimizing the Rotary Kiln Run." Applied Mechanics and Materials 483 (December 2013): 518–23. http://dx.doi.org/10.4028/www.scientific.net/amm.483.518.

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The strategic object of the innovation process in the raw materials extracting and treatment area is a sustainable development in all its components, particularly in the material, economic, environmental and energy. The paper presents a concrete contribution to the achievement of this goal by applying the principles of logistics in technical and technological optimization of rotary kilns operation with a positive impact in the energetic field especially. Rotary kilns are a long-term core technology of heat aggregates within the mining industry. Today there is a characteristic potential optimiz

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Zhu, Ming, Gao Feng Xie, and Rong Shun Wang. "Experimental Investigation of the Influence of the Gas Type on the Heat Transfer in a High-Vacuum-Multilayer-Insulation Cryogenic Tank After Sudden, Catastrophic Loss of Insulating Vacuum." Advanced Materials Research 354-355 (October 2011): 294–303. http://dx.doi.org/10.4028/www.scientific.net/amr.354-355.294.

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One of the worst accidents that may occur in a high-vacuum-multilayer-insulation (HVMLI) cryogenic tank is a sudden, catastrophic loss of insulation vacuum (SCLIV). it is obvious that the different gas leaking into the insulation jacket have some influence on the heat transfer process. However, this problem has not been studied systematically so far. In this paper, a test rig was built up and experiments were conducted on a SCLIV cryogenic tank by using the nitrogen, helium, oxygen, carbon dioxide and air as the leaking medium, respectively. Some important phenomena and heat transfer character

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Siriwardane, Sudath C., Nirosha D. Adasooriya, and Dimitrios Pavlou. "Fatigue Strength Curve for Tubular Joints of Offshore Structures under Dynamic Loading." Dynamics 1, no. 1 (2021): 125–33. http://dx.doi.org/10.3390/dynamics1010007.

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Offshore structures are subjected to dynamic environmental loads (wave and wind loads). A stress-life fatigue strength curve is proposed for tubular joints which are in the splash zone area of offshore jacket structures. The Det Norske Veritas (DNV) offshore structures standards given design T-curve in the air is modified with the environment-dependent parameters to obtain this fatigue strength curve. Validity of the curve is done by comparing fatigue lives given by the proposed curve with experimental fatigue lives of tubular joints tested in seawater under different loading conditions. The f

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Wang, Mengyao, Lu Zhang, Kai Yang, Junjie Xu, and Chunyu Du. "Eddy Current Braking Force Analysis of a Water-Cooled Ironless Linear Permanent Magnet Synchronous Motor." Energies 16, no. 15 (2023): 5826. http://dx.doi.org/10.3390/en16155826.

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The ironless linear permanent magnet synchronous motor (ILPMSM) is highly compact, easy to control, and exhibits minimal thrust fluctuations, making it an ideal choice for direct loading applications requiring precise positioning accuracy in linear motor test rigs. To address the issue of temperature rise resulting from increased primary winding current and to simultaneously enhance thrust density while minimizing thrust fluctuations, this paper introduces a bilateral-type ILPMSM with a cooling water jacket integrated between the dual-layer windings of the primary movers. The primary winding o

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Lu, Mei, Yuan Tian, Jie Wang, and Congmin Lv. "Optimization of Combustion Parameters in the Fire Tube of Water Jacket Heating Furnace Based on FLUENT." Processes 13, no. 1 (2025): 190. https://doi.org/10.3390/pr13010190.

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The combustion calculation domain of a water jacket heating furnace was established, and the fuel consumption and air consumption were optimized based on FLUENT. The amount of air consumption is based on the theoretical value of combustion, an air excess coefficient of 1.2 is taken, and the fuel consumption rate is set at 110, 130, 150, 170, and 190 m3/h. A comparative analysis of the calculation results shows that when the fuel consumption rate is 170 m3/h, the fuel combustion in the fire tube is the most intense, the combustion temperature is the highest, and the average temperature on the i

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Koyanbayev, Ye T., M. K. Skakov, E. G. Batyrbekov, I. I. Deryavko, Ye Ye Sapatayev, and Ye A. Kozhahmetov. "The Forecasting of Corrosion Damage of Structural Materials during Dry Long-Term Storage of RD BN-350 SNF with CC-19 SFA." Science and Technology of Nuclear Installations 2019 (April 1, 2019): 1–9. http://dx.doi.org/10.1155/2019/1293060.

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There are results of long-term thermal aging of samples of irradiated and nonirradiated FA jacket and nonirradiated fuel element cladding at a temperature range from 300 to 550°C in argon, to 600°C in air. Materials have been studied before and after thermal tests. The forecast estimation of expected corrosion damage of barrier material at the radionuclide release from spent fuel assemblies of BN-350 reactor into environment during dry storage for 50 years was carried out.

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Camerling, B. J., and Istawa A. Abdullah. "ALTERNATIF PEMILIHAN BAHAN PIPA UNTUK MENCEGAH KOROSI PADA RAW WATER FILTER MESIN SWD 6TM410RR PLTD HATIVE KECIL." ARIKA 12, no. 1 (2018): 53–66. http://dx.doi.org/10.30598/arika.2018.12.1.53.

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Pusat Listrik Tenaga Diesel (PLTD) adalah pembangkit listrik yang menggunakan sistem mesin pembakaran dalam yang memerlukan sistem pendinginan. Proses pembakaran pada ruang bakar akan menimbulkan panas yang tinggi selama pembakaran berlangsung. Oleh sebab itu untuk menghindari terjadinya kerusakan pada material yang berhubungan langsung dengan proses pembakaran maka diperlukan proses pendinginan. Salah satu Sistem pendinginan pada mesin yang terdapat di PLTD Hative Kecil yaitu yang sistem pendinginan dengan menggunakan media air laut (raw waer cooling system). Sistem pendingin tersebut digunak

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Muntasir, Al-obaidi, Zhang Tiemin, and Yang Wenbo. "Mixing Efficiency of Compost Tea Brewing Machines with Various Airlift Pump Air Jacket Structures and Air Injection Pressures." Journal of The Institution of Engineers (India): Series A 100, no. 1 (2018): 111–16. http://dx.doi.org/10.1007/s40030-018-0330-7.

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Jaramillo Arango, Julián. "AirQ sonification as a context for mutual contribution between science and music." Revista Música Hodie 18, no. 1 (2018): 92–102. http://dx.doi.org/10.5216/mh.v18i1.53573.

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   This paper addresses a high-level discussion about the links between Science and Music, focusing on my own sonification and auditory display practices around air quality. Grounded on recent insights on interdisciplina- rity and sonification practices, the first sections will point out some potential contributions from scientific research to music studies and vice versa. I will propose the concept of mutualism to depict the interdependent status of Mu- sic and Science. The final sections will discuss air contamination as a complex contemporary problem, and will re- port thr

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Aprizawati, Aprizawati, Bobi Satria, and Arif Putra. "Pengadaan Alat Dan Sosialisasi Alat Keselamatan Pelayaran Bagi Nelayan Tradisional Desa Muntai." TANJAK : Jurnal Pengabdian Kepada Masyarakat 5, no. 1 (2024): 71–77. http://dx.doi.org/10.35314/yx3yak55.

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Desa Muntai yang merupakan salah satu desa yang ada di Kecamatan Bantan, Kabupaten Bengkalis dimana sebagian masyarakatnya berprofesi sebagai nelayan traditional selain bekerja di Malaysia, yang mana masih banyak menggunakan kapal kapal kayu tanpa peralatan keselamatan didalamnya. Sebagai timbal balik dari kurangnya kesadaran dan kurang memadainya fasilitas serta keterampilan pekerja sehingga banyak awak kapal yang seperti meremehkan tentang risiko bekerja, seperti tidak menggunakan alat-alat keselamatan yang memadai Life Jacket atau baju pelampung yaitu alat keselamatan yang sangat dibutuhkan

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Wu, Zhaoguo, Qian Wang, Huixian Huang, et al. "Research on the Thermal Decomposition Characteristics of PE Outer Sheath of High-Voltage Cables Under Different Humidity Levels." Energies 18, no. 13 (2025): 3537. https://doi.org/10.3390/en18133537.

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Gas sensors can provide early warning of fires by detecting pyrolysis gas components in the sheaths of high-voltage cables. However, air humidity significantly affects the thermal decomposition gas production characteristics of the outer sheath of high-voltage cables, which in turn affects the accuracy of this warning method. In this paper, the thermal decomposition and gas production characteristics of the polyethylene (PE) outer jacket of high-voltage cables under different air humidities (20–100%) are studied, and the corresponding density functional theory (DFT) simulation calculations are

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Kim, Yung-Bin, Won Jang, Kirim Kim, Siyeon Kim, Yoon Jeong Baek, and Joo-Young Lee. "Comparisons of Thermal Insulations between on Air-Cell Pack Embedded Jacket and Down Jackets." Journal of the Korean society of clothing and textiles 39, no. 1 (2015): 55. http://dx.doi.org/10.5850/jksct.2015.39.1.55.

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Irina, Boshkova, Titlov Alexandr, Volgusheva Natalya, Kolesnychenko Natalia, and Sagala Tetiana. "DESIGNING A SYSTEM OF LIQUID COOLING FOR INDUSTRIAL MICROWAVE INSTALLATIONS." Eastern-European Journal of Enterprise Technologies 4, no. 5 (100) (2019): 65–70. https://doi.org/10.15587/1729-4061.2019.175470.

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The paper considers the issue on ensuring a thermal regime of the magnetron's anode unit by replacing an air-cooling system with the system of liquid cooling. It has been argued that a liquid cooling system is most suitable for magnetrons, for which currently an air-cooling system is implied, although they are not designed for a continuous operation in the structure of industrial microwave installations. Arranging the system of liquid cooling would makes it possible for a magnetron to work over long time without overheating and under favorable conditions, which rule out a possibility to cl

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Muškinja, Nenad, Matej Rižnar, and Marjan Golob. "Optimized Fuzzy Logic Control System for Diver’s Automatic Buoyancy Control Device." Mathematics 11, no. 1 (2022): 22. http://dx.doi.org/10.3390/math11010022.

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In this article, the design of a fuzzy logic control system (FLCS) in combination with multi-objective optimization for diver’s buoyancy control device (BCD) is presented. To either change or maintain the depth, the diver manually controls two pneumatic valves that are mounted on the inflatable diving jacket. This task can be very difficult, especially in specific diving circumstances such as poor visibility, safety stop procedures or critical life functions of the diver. The implemented BCD hardware automatically controls the diver’s depth by inflating or deflating the diver’s jacket with two

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Ramachandra Murthy, D. S., P. Gandhi, and G. Raghava. "Fatigue Life of Cathodically Protected Tubular Joints of Offshore Structures." Journal of Offshore Mechanics and Arctic Engineering 120, no. 4 (1998): 232–36. http://dx.doi.org/10.1115/1.2829545.

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Steel jacket platforms are widely used for production and processing of oil from offshore fields. Tubular joints of these structures are susceptible to fatigue or corrosion fatigue cracking due to cyclic wave action, stress concentration, and corrosive environment. The submerged part of the structure is cathodically protected against corrosion by fixing sacrificial anodes at various places. The effect of cathodic protection on the fatigue life of tubular joints was studied by conducting fatigue tests on 13 T and Y-joints in air, under free corrosion, and with cathodic protection. The results o

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