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1

Amritanandamayi Devi, Mata, Ganesha Udupa, and Pramod Sreedharan. "Anti-Bourdon tube pressure gauge." Measurement 101 (April 2017): 190–99. http://dx.doi.org/10.1016/j.measurement.2017.01.026.

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2

Fan, Xue Qun, Li Xiang Zhang, Feng Xu, Yu Ming Gu, Jian Zhang, and Jia Wu Li. "The Structural Design Research of Bourdon Tube." Applied Mechanics and Materials 201-202 (October 2012): 279–82. http://dx.doi.org/10.4028/www.scientific.net/amm.201-202.279.

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Bourdon tube has been widely used in the fluid testing so far, and this paper introduces the chemical and physical behaviors of beryllium bronze QBe2.0 detailedly which mainly makes up bourdon tube; It analyzes the influences of elastic limit in bending on bourdon tube the chemical elements and coating technology bring; Simultaneously, it focuses on the design of the base of tube and the assembly body, points out the location of bourdon tube in bourdon tube pressure gauge; and the design of this paper can guarantee the normal work of bourdon tube in the sealed environment through the theory an
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3

Ghodsi, Mohammad Reza. "Using Instrumentation Magnetic Level Gauge to Measure the Local Level of Industrial Tanks (Case Study of Ramin Power Plant)." Journal of New Achievements in Electrical, Computer and Technology 2, no. 4 (2022): 17–38. https://doi.org/10.5281/zenodo.7046766.

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Measuring and observing the local level of industrial reservoirs is always considered one of the most important issues in all industries, to the extent that different methods are used in the field of precision instruments. On the other hand, with the passage of time, due to the wear and tear of old local level gauges and the lifespan of their parts, these devices are always faced with a decrease in measurement accuracy as well as an increase in equipment failure and inefficiency. The focus of this article is on the local measurement of the level, compared to the centralized measurement located
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4

Wu, Ze Qiu. "An Explore about Low-Price Pressure Sensor." Applied Mechanics and Materials 121-126 (October 2011): 1200–1203. http://dx.doi.org/10.4028/www.scientific.net/amm.121-126.1200.

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In low-end equipment developing it is often have the requirement of use low-cost pressure sensors, but the maketing pressure sensors’s price is very higher than the SCM. For decrease the price of the equipment to suit the market we explored a low-cost pressure sensor disgn. It is based on the bourden tube pressure gauge, SCM control system, Gray code disc and photoelectronic reading technology. The design can suit the certain low-cost equipment.
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5

Wongthep, Padipat, Hiroaki Kajikawa, Tawat Changpan, et al. "Final report on key comparison APMP.M.P-K7.3 in hydraulic gauge pressure from 10 MPa to 100 MPa." Metrologia 59, no. 1A (2022): 07015. http://dx.doi.org/10.1088/0026-1394/59/1a/07015.

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Main text This report describes the results of a key comparison among hydraulic high pressure standards that have been maintained by seven National Metrology Institutes (NMIs: NIMT, NMIJ/AIST, NPLI, RCM-LIPI, NMIM, VMI and NMLPHIL). This comparison was carried out during the period March 2016 to October 2017 within the framework of the Asia-Pacific Metrology Programme (APMP) in order to determine their degrees of equivalence in the pressure range from 10 MPa to 100 MPa, gauge mode. The pilot institute was the National Institute of Metrology (Thailand) (NIMT). All participating institutes used
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6

Worden, Ray D. "Advanced Design Concepts for Fused Quartz Pressure Transducers." Measurement and Control 20, no. 9 (1987): 51–55. http://dx.doi.org/10.1177/002029408702000902.

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The author presents the engineering design considerations applied in the development of a laboratory grade pressure standard utilising a fused quartz Bourdon tube transducer, and its adaptation to uses in field service and process control industries.
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7

Bansil, M. S., and F. Abdullah. "Finite element modelling of Bourdon tubes used in pressure and temperature gauges." Transactions of the Institute of Measurement and Control 7, no. 4 (1985): 203–8. http://dx.doi.org/10.1177/014233128500700404.

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8

FUKAKURA, Juichi, Hiroshige ITOH, Masanori ISHIMATU, and Kenji OHBA. "Fatigue Life Assessment of Bourdon Tube against Cyclic Internal Pressure." Transactions of the Japan Society of Mechanical Engineers Series A 62, no. 599 (1996): 1535–42. http://dx.doi.org/10.1299/kikaia.62.1535.

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9

Biggar, Joshua. "An Uncertainty Analysis of Fused-Quartz Bourdon Tube Pressure Instruments." NCSLI Measure 8, no. 4 (2013): 45–51. http://dx.doi.org/10.1080/19315775.2013.11721663.

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10

Azooz, R. H., and M. A. Arshad. "Laboratory calibration of pressure transducer-tensiometer system for hydraulic studies." Canadian Journal of Soil Science 74, no. 3 (1994): 315–19. http://dx.doi.org/10.4141/cjss94-044.

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Pressure transducer-tensiometer (PTT) systems can be used to continuously monitor soil pore water pressure and the hydraulic gradient distribution in a field, and under laboratory conditions over relatively short time intervals. A reliable laboratory calibration of a PTT system can determine the effects of temperature fluctuations on output readings in the field. Laboratory calibrations of 20 PTTs were conducted under constant pressures of 0, − 25, − 50 and − 75 kPa and constant temperatures of 5, 15, 25 and 48 °C. Twenty Bourdon gauge tensiometers (BGTs) and pressure transducers (PTs) were al
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11

ZAMA, Hidetaka, Takamitsu TAJIMA, and Yukio SAITO. "F-1334 Study on High Pressure Type Hydraulic Bourdon Tube Actuator." Proceedings of the JSME annual meeting VI.01.1 (2001): 291–92. http://dx.doi.org/10.1299/jsmemecjo.vi.01.1.0_291.

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12

Maitra, Subhashis. "Two Wire Pressure Transmitter using Bourdon Tube Pressure Sensor and LVDT - An Advance Pressure Transmitter." Communications on Applied Electronics 3, no. 6 (2015): 39–44. http://dx.doi.org/10.5120/cae2015651982.

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13

AKIYAMA, Takashi, Masae HIKICHI, and Ryoko MATSU ZAKI. "Measurement of decomposition pressure of diammonium hydrogenphosphate by using Bourdon-type sickle gauge." NIPPON KAGAKU KAISHI, no. 4 (1986): 617–18. http://dx.doi.org/10.1246/nikkashi.1986.617.

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14

Jiao, M. X., E. G. Zhao, Y. M. Liu, and R. L. Qi. "A High Sensitivity Pressure Sensing System with Fiber Bragg Grating Using the Transverse Strain Characteristics of a Straight Bourdon Tube." Key Engineering Materials 295-296 (October 2005): 539–44. http://dx.doi.org/10.4028/www.scientific.net/kem.295-296.539.

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A high sensitivity pressure sensing system with a fiber Bragg grating (FBG) using the transverse strain characteristic of a straight bourdon tube (SBT) is presented and demonstrated for the first time to our knowledge. The transverse strain of the SBT makes the FBG tensioned. The pressure can be determined by measuring the shift of the Bragg wavelength. The experimentally obtained results indicate that the shift of the Bragg wavelength changes linearly with the applied pressure and the sensitive coefficients of pressure are approximately 6.22x10-3MPa-1. This represents a sensitivity value appr
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15

Huang, Mian, Tao Xie, Jia Qi Li, et al. "Blind Pipe Type Fiber Bragg Grating Hydrostatic Gauge." Applied Mechanics and Materials 599-601 (August 2014): 1182–85. http://dx.doi.org/10.4028/www.scientific.net/amm.599-601.1182.

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A blind pipe type fiber Bragg grating hydrostatic gauge is developed to measure the pressure of liquid. In the hydrostatic gauge, the inside of elastic tube is suffered by the pressure of liquid and drives the wavelength shift of a fiber Bragg grating mounted on the outside of elastic tube. For eliminating the disturbance of temperature variation, the other grating is mounted on the n type sheet metal and is immune to the applied stress strain of elastic tube. The hydrostatic experiment indicates that the pressure sensitivity of the hydrostatic gauge is 0.425 nm/MPa, when the original Bragg wa
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16

Saha, Sirshendu, Saikat Kumar Bera, Hiranmoy Mandal, Pradip Kumar Sadhu, and Satish Chandra Bera. "A Temperature Compensated Non-Contact Pressure Transducer Using Hall Sensor and Bourdon Tube." IEEE Sensors Journal 19, no. 14 (2019): 5429–38. http://dx.doi.org/10.1109/jsen.2019.2904767.

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17

Gill, R. C., J. E. Kellow, C. Browning, and D. L. Wingate. "The use of intraluminal strain gauges for recording ambulant small bowel motility." American Journal of Physiology-Gastrointestinal and Liver Physiology 258, no. 4 (1990): G610—G615. http://dx.doi.org/10.1152/ajpgi.1990.258.4.g610.

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Perfused-tube manometry has hitherto been the standard technique for recording intraluminal intestinal pressure in humans, but it is unsuitable for ambulant use. The aim of our study was to evaluate the ability of resistive strain gauge transducers attached to a fine catheter to detect pressure change. Simultaneous strain gauge and perfused-tube manometry was performed on six fasting subjects; in four, strain gauge activation was continuous and in two, the transducers were activated in a pulsed mode with data encoded as a pulse train with an approximate frequency of 20 Hz. Eight thousand eight
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18

Syahputra, Zulferi, Eben Ezer Situmorang, Renaldi Pamungkas, Qoriatul Fitriyah, and Muhammad Prihadi Eko Wahyudi. "Dead Weight Tester Untuk Penggunaan Internal PLTG Tanjung Uncang." JURNAL INTEGRASI 15, no. 1 (2023): 15–20. http://dx.doi.org/10.30871/ji.v15i1.5259.

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Di dalam dunia industri banyak peralatan instrument yang dipasang sebagai alat-alat dan peranti (device) yang dipakai untuk pengukuran dan pengendalian dalam suatu sistem yang lebih besar dan lebih kompleks khususnya di Pembangkit Listrik Tenaga Gas Tanjung Uncang Batam. Untuk memastikan keakuratan alat ukur maupun perangkat instrument berfungsi dengan baik maka diperlukan perawatan atau kalibrasi ulang yang di lakukan secara berkala. Pada umumnya setiap pengkalibrasian alat ukur itu di lakukan oleh pihak eksternal perusahaan, dan itu memerlukan biaya tambahan operasional perusahaan. Dari hasi
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19

Maurya, Praveen, Niraj Singh, and Nirupama Mandal. "A novel technique on MZI based electro-optic type pressure transmitter using modified bourdon tube." Optik 144 (September 2017): 573–85. http://dx.doi.org/10.1016/j.ijleo.2017.07.012.

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20

Maurya, Praveen, and Nirupama Mandal. "Design Analysis of Wireless Pressure Measurement by Integrating Surface Acoustic Wave Sensor With Bourdon Tube." IEEE Sensors Journal 18, no. 21 (2018): 8996–9004. http://dx.doi.org/10.1109/jsen.2018.2867567.

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21

Sharma, J. K. N., D. R. Sharma, and A. C. Gupta. "Effect of Line Pressure on the Zero Stability of a Differential Quartz Bourdon Gauge for Various Gases." Metrologia 30, no. 1 (1993): 37–43. http://dx.doi.org/10.1088/0026-1394/30/1/007.

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22

Higashijima, Fumiaki, Manami Ohta, Tadahiko Ogata, et al. "A new tube chamber system for evaluation of anterior chamber pressure during phacoemulsification tested in porcine eyes." International Journal of Ophthalmology 18, no. 1 (2025): 9–14. https://doi.org/10.18240/ijo.2025.01.02.

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AIM: To measure the optimal anterior chamber pressure (ACP) for safe phacoemulsification using a new tube chamber system with internal pressure measurement function in the porcine eye. METHODS: The 20-gauge and 21-gauge straight tips with yellow and orange sleeves, respectively, were covered by a test chamber combined with a pressure sensor for measuring ACP. This was measured for 20s from 10s after starting aspiration in the linear mode using vacuum levels of 200 and 150 mm Hg with a 20-gauge tip, and 300 and 250 mm Hg with a 21-gauge tip. Using a porcine eye, a pressure sensor fixed with a 0
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23

Bera, Satish Chandra, Nirupama Mandal, and Rajan Sarkar. "Study of a Pressure Transmitter Using an Improved Inductance Bridge Network and Bourdon Tube as Transducer." IEEE Transactions on Instrumentation and Measurement 60, no. 4 (2011): 1453–60. http://dx.doi.org/10.1109/tim.2010.2090697.

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24

Davis, L. E., A. G. Pashayan, N. J. Cassisi, V. P. Roan, and J. S. Gravenstein. "A1070 INTRALUMINAL GAUGE PRESSURE AFFECTS TRACHEAL TUBE IGNITION BY CO2LASER." Anesthesiology 73, no. 3A (1990): NA. http://dx.doi.org/10.1097/00000542-199009001-01068.

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25

Yamamoto, Yuuki, Shiro Kubota, Tei Saburi, Yuji Wada, and Atsumi Miyake. "Pressure Measurement of Non-Ideal Detonation in Ammonium Nitrate Based High Energetic Material." Applied Mechanics and Materials 566 (June 2014): 385–90. http://dx.doi.org/10.4028/www.scientific.net/amm.566.385.

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In order to know accurate information on the non-ideal detonation pressure, steel tube test was carried out on ammonium nitrate (AN) and activated carbon (AC) mixtures. In this test, detonation velocity and pressure were measured simultaneously by varying thickness of PMMA placed between AN/AC and pressure gauge. The length and the diameter of the steel tube were 350 mm and 35.5 mm. The results showed that shock pressure attenuation in PMMA was not observed for this experimental condition (PMMA gap; 3-5 mm). The averaged measured peak pressure and detonation velocity were 3.4 GPa and 3.2 km/s.
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26

Cheng, An, Chao Chung Cheng, Qi Qiu, Jia Ruey Chang, Hui Mi Hsu, and Tang Chieh Liao. "Availability of Double-Tube Flood Mark Stream Gauge." Advanced Materials Research 538-541 (June 2012): 2784–88. http://dx.doi.org/10.4028/www.scientific.net/amr.538-541.2784.

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It is commonly accepted that absolute immunity from flood damage is not physically possible even in the distant future because of unpredictability of several natural forces which might cause unprecedented situation. Even so, with proper planning and continuous effort we can certainly look forward to an appreciable diminution of distress with an accelerated implementation of flood management measures. It is commonly accepted that the measures to mitigate flood losses need to be given the most efforts wherein flood damage assessment is the primary measure of mitigation. This has been viewed main
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27

Sutrisno, Avando Bastari, and Okol Sri Suharyo. "Enviromental Pattern Analysis of Biodiesel (Castor, Coconut, MGB) to Support Alternative Energy using CFD approach." Global Journal of Engineering and Technology Advances 8, no. 1 (2021): 051–60. http://dx.doi.org/10.30574/gjeta.2021.8.1.0100.

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The Ship uses the MTU 16V956 TB 92 propulsion engine with a piston-type Mexican Hat combustion chamber. In general, the crown is used on machines with large torque. Besides that, the crown shape in the combustion chamber is also very influential on the formation of a mixture of fuel and air before the combustion process occurs. So it is necessary to know about the spray pattern of biodiesel fuel of enviromental things (castor, coconut, used cooking oil/MGB) in the Mexican Hat combustion chamber. In this study, using the Mexican Hat-shaped piston crown simulation method, the first step was to t
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28

Sutrisno, Bastari Avando, and Sri Suharyo Okol. "Enviromental Pattern Analysis of Biodiesel (Castor, Coconut, MGB) to Support Alternative Energy using CFD approach." Global Journal of Engineering and Technology Advances 8, no. 1 (2021): 051–60. https://doi.org/10.5281/zenodo.5112016.

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The Ship uses the MTU 16V956 TB 92 propulsion engine with a piston-type Mexican Hat combustion chamber. In general, the crown is used on machines with large torque. Besides that, the crown shape in the combustion chamber is also very influential on the formation of a mixture of fuel and air before the combustion process occurs. So it is necessary to know about the spray pattern of biodiesel fuel of enviromental things (castor, coconut, used cooking oil/MGB) in the Mexican Hat combustion chamber. In this study, using the Mexican Hat-shaped piston crown simulation method, the first step was to t
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29

van der Vis, M. G. M., and E. H. P. Cordfunke. "Tetraethoxysilane, Si(OC2H5)4: vapour pressure measurements at temperatures from 323 to 442 K by means of a Bourdon spoon gauge." Thermochimica Acta 265 (November 1995): 129–34. http://dx.doi.org/10.1016/0040-6031(95)02403-o.

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30

Sinebe, J.E. "Design and Fabrication of Experimental Shell and Tube Heat Exchangers for Distilled Water Production." Engineering Research Journal 5, no. 2 (2025): 10–21. https://doi.org/10.5281/zenodo.15192079.

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<em>This study was conducted to design, analysis, and fabricate a tube heat exchanger prototype for producing distilled water. The Apparatus has three main system components: the shell side, tube side, and baffles. The shell and tube sides are made of galvanised steel, and the baffles are arranged in segments. A pressure gauge measures the amount of pressure in any section of a pipe. The test was carried out using a heater with a capacity of six litres, or approximately 0.006 m<sup>3</sup>. The heater, pumps, and tanks were all connected by pipes, having 21.34 mm diameter, and 12.70 mm long. T
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31

Shetti, Akshaya N., Veena Vijayakumar, and Bhavika Singla. "To study the efficacy of AG CUFFILL (Digital) compared to that of standard PORTEX cuff inflator/pressure analog gauge for the measurement of endotracheal tube cuff pressure." International Journal of Pharmaceutical Chemistry and Analysis 9, no. 2 (2022): 105–8. http://dx.doi.org/10.18231/j.ijpca.2022.017.

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Endotracheal tube (ETT) is commonly used to provide positive pressure ventilation. ETT cuff pressure is maintained within a range of 20 to 30 cmH2O. High pressure affects micro-circulation and integrity of the tracheal mucosa, resulting in complications. The cuff pressure is measured by connecting a pressure gauge device to pilot balloon. Two variety devices are available; analog or digital manometers. Present study is used to study the efficacy of AG CUFFILLL (Digital) compared with standard PORTEX Cuff inflator/pressure gauge (Analog) for the measurement of ETT cuff pressure.This study was c
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32

Taslakian, Bedros, Varshaa Koneru, James S. Babb, and Divya Sridhar. "Transthoracic Needle Biopsy of Pulmonary Nodules: Meteorological Conditions and the Risk of Pneumothorax and Chest Tube Placement." Journal of Clinical Medicine 8, no. 5 (2019): 727. http://dx.doi.org/10.3390/jcm8050727.

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The purpose of this paper is to evaluate whether meteorological variables influence rates of pneumothorax and chest tube placement after percutaneous transthoracic needle biopsy (PTNB) of pulmonary nodules. A retrospective review of 338 consecutive PTNBs of pulmonary nodules at a single institution was performed. All procedures implemented a coaxial approach, using a 19-gauge outer guide needle for access and a 20-gauge core biopsy gun with or without a small-gauge aspiration needle for tissue sampling. Correlation between age, sex, smoking history, lesion size, meteorological variables, and f
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33

Gobi, K., B. Kannapiran, D. Devaraj, and K. Valarmathi. "Design, performance evaluation and analysis of the inlet tube of pressure sensor for chamber pressure measurement." Sensor Review 39, no. 4 (2019): 612–21. http://dx.doi.org/10.1108/sr-12-2017-0260.

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Purpose In Aerospace applications, the inlet tubes are used to mount strain gauge type pressure sensors on the engine under static test to measure engine chamber pressure. This paper aims to focus on the limitations of the inlet tube and its design aspects to serve better in the static test environment. The different sizes of the inlet tubes are designed to meet the static test and safety requirements. This paper presents the performance evaluation of the designed inlet tubes with calibration results and the selection criteria of the inlet tube to measure combustion chamber pressure with the s
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34

Wan, Rui, Yichun Wang, Revaz Kavtaradze, and Xinglei He. "Heat transfer and flow characteristics of offset fin and flat tube heat exchangers under low pressure environment." Thermal Science 24, no. 3 Part B (2020): 2023–34. http://dx.doi.org/10.2298/tsci180721296w.

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Due to the performance degradation of the vehicle cooling system heat exchanger in the low pressure environment, the problem of overheating of the cooling system occurs when the vehicle is running on the plateau. This seriously affects the use of vehicles on the plateau environment. Therefore, it is necessary to study the influence of the plateau low pressure environment on the heat transfer and flow characteristics of the vehicle cooling system heat exchanger. In this paper, an experimental study of an offset fin and flat tube heat exchanger was conducted on a low pressure wind tunnel test be
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35

Narendra, Hunsehalli Revanasiddappa, Aparna Nerurkar, and Shibu Sasidharan. "Observational Analysis of Changes in Endotracheal Tube Cuff Pressure During Laparoscopic Surgery." Journal of Medical Academics 3, no. 2 (2020): 46–49. http://dx.doi.org/10.5005/jp-journals-10070-0052.

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ABSTRACT Background Laparoscopic surgery is performed under general anesthesia with mechanical ventilation, and a high-volume, low-pressure endotracheal tube (ETT) with a sealing cuff pressure about 20–30 cm of H2O is commonly used for a proper seal and avoidance of overinflation. Nitrous oxide (N2O) is an inhalational anesthetic that is used with oxygen in the ratio 50:50 for the maintenance of anesthesia if there is no facility of medical air. However, N2O increases the intracuff pressure of the tracheal tube due to diffusion of N2O in to cuff during general anesthesia. The present research
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36

Mansoor, Ammar R. "Aspiration pump for oocyte recovery from cow's ovaries." Kufa Journal For Veterinary Medical Sciences 2, no. 1 (2011): 43–46. http://dx.doi.org/10.36326/kjvs/2011/v2i14031.

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The purpose of this study was to improve application of a new tool for ova or oocyte aspiration from ruminants ovaries . The bovine ovaries used as a model for oocyte recovery . The system were consisted from the following parts ; 1) Aspiration pump ; 2) Manometer as pressure measurements ; 3) Connection plastic tube for air aspiration ; 4) Pressure regulation ; 5) Container for ova collection ; 6) Plastic tube for transport of follicular fluid containing oocyte ; 7) Gauge 18 needle . The system were applied on 26 bovine ovaries , were collected from Al Ramadi slaughter house during the period
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Mansoor, Ammar R. "Aspiration pump for oocyte recovery from cow's ovaries." Kufa Journal For Veterinary Medical Sciences 2, no. 1 (2011): 43–46. http://dx.doi.org/10.36326/kjvs/2011/v2i14031.

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The purpose of this study was to improve application of a new tool for ova or oocyte aspiration from ruminants ovaries . The bovine ovaries used as a model for oocyte recovery . The system were consisted from the following parts ; 1) Aspiration pump ; 2) Manometer as pressure measurements ; 3) Connection plastic tube for air aspiration ; 4) Pressure regulation ; 5) Container for ova collection ; 6) Plastic tube for transport of follicular fluid containing oocyte ; 7) Gauge 18 needle . The system were applied on 26 bovine ovaries , were collected from Al Ramadi slaughter house during the period
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38

SADOVY, V. YU. "COMPARISON OF METHODS OF NON-MECHANICAL PRESSURE MEASUREMENT IN THE CUFF OF AN ENDOTRACHEAL TUBE." PAIN, ANAESTHESIA & INTENSIVE CARE, no. 1(106) (February 28, 2024): 88–93. http://dx.doi.org/10.25284/2519-2078.1(106).2024.300697.

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Background: Tracheal injuries are uncommon but pose significant risks in anesthesiology and critical care. These injuries primarily occur due to the direct mechanical impact, often linked to the excessive pressure from the intubation tube's cuff. This study aims to assess the actual cuff pressure in intubated patients during surgeries, examine how these measurements correlate with anesthesiologists' subjective evaluations, and compare various cuff inflation techniques. Methods: The study included 90 patients, divided into two groups of 45 each. For the experimental group, the cuff was inflated
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39

Gao, Yuan, Yulong Li, Zuoxia Wang, Enze Ma, and Heng Yu. "Flow boiling of saturated liquid nitrogen in a horizontal macro-tube under negative gauge pressure." International Journal of Heat and Mass Transfer 236 (January 2025): 126369. http://dx.doi.org/10.1016/j.ijheatmasstransfer.2024.126369.

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40

Tankó, Béla, Béla Fülesdi, László Novák, Csaba Pető, and Csilla Molnár. "Endotracheal tube cuff inflation with and without a pressure gauge to minimise sevoflurane pollution during intermittent positive pressure ventilation." European Journal of Anaesthesiology 31, no. 3 (2014): 172–73. http://dx.doi.org/10.1097/eja.0000000000000018.

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41

Kusaka, Mami, Yuki Kujime, Momoko Yamakawa, and Masayuki Akimoto. "Baerveldt tube shunt implantation through a long scleral tunnel." European Journal of Ophthalmology 29, no. 4 (2018): 458–63. http://dx.doi.org/10.1177/1120672118779483.

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Purpose: To develop a new technique for the placement of a Baerveldt glaucoma implant tube through a long scleral tunnel. Materials and methods: Patients with refractory glaucoma undergoing the maximum tolerated medical therapy were recruited. We created a scleral tunnel with a 24-gauge catheter needle and used the external tube for guidance when introducing a Baerveldt glaucoma implant tube. Main outcome measures included intraocular pressure, supplemental medical therapy score, intraoperative complications, and postoperative complications. Results: Nine eyes of six patients were included in
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42

Vurgaft, Amit, Shai B. Elbaz, and Amir D. Gat. "Forced motion of a cylinder within a liquid-filled elastic tube – a model of minimally invasive medical procedures." Journal of Fluid Mechanics 881 (October 29, 2019): 1048–72. http://dx.doi.org/10.1017/jfm.2019.789.

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This work analyses the viscous flow and elastic deformation created by the forced axial motion of a rigid cylinder within an elastic liquid-filled tube. The examined configuration is relevant to various minimally invasive medical procedures in which slender devices are inserted into fluid-filled biological vessels, such as vascular interventions, interventional radiology, endoscopies and laparoscopies. By applying the lubrication approximation, thin shell elastic model, as well as scaling analysis and regular and singular asymptotic schemes, the problem is examined for small and large deformat
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Kolomeyer, Anton M., Robert D. Fechtner, Marco A. Zarbin, and Neelakshi Bhagat. "23-Gauge Pars Plana Vitrectomy with Pars Plana Baerveldt Tube Placement for Refractory Glaucoma." European Journal of Ophthalmology 22, no. 1 (2011): 90–94. http://dx.doi.org/10.5301/ejo.5000027.

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Purpose To describe a case series of combined 23-gauge vitrectomy and pars plana Baerveldt tube insertion for intraocular pressure (IOP) control in eyes with glaucoma resistant to maximum tolerated medical therapy and/or having failed previous IOP-lowering procedures. Methods Eight consecutive patients (8 eyes) undergoing a combined procedure were identified and included in this study. Outcome measures included preoperative and final best-corrected visual acuity (VA), IOP, number of glaucoma medications, and complications. Changes in IOP and glaucoma medications were compared by a paired t tes
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Austin, George M., George M. Austin, Wouter Schievink, and Richard Williams. "Controlled Pressure-Volume Factors in the Enlargement of Intracranial Aneurysms." Neurosurgery 24, no. 5 (1989): 722–30. http://dx.doi.org/10.1227/00006123-198905000-00011.

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ABSTRACT Pressure-volume relations were investigated on a model aneurysm wall made of elastic tissue and collagen. The model wall had a Young's Modulus of 2 × 107 dynes/cm2, approximating the elastance of fresh aneurysm walls obtained at autopsy. The model wall was fixed over the top of a glass T-tube, 6 mm in diameter. Pressure pulse waves of water or outdated human blood entered at the bottom of the T-tube and exited by way of a controlled resistance, while pressure was monitored by a strain gauge and recorded on an ink writer from the other arm. Incremental increases in systolic pressure pr
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45

Howath, A., J. Brimacombe, and C. Keller. "Gum-elastic Bougie-guided Insertion of the ProSeal™ Laryngeal Mask Airway: A New Technique." Anaesthesia and Intensive Care 30, no. 5 (2002): 624–27. http://dx.doi.org/10.1177/0310057x0203000514.

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We determined the success rates, cardiovascular responses and airway morbidity for gum-elastic bougie-guided insertion of the ProSeal™ laryngeal mask airway. One hundred anaesthetized, non-paralyzed adults (ASA 1–2, aged 18 to 80 years) were studied. The ProSeal LMA drainage tube was primed with a well-lubricated 16 French gauge gum-elastic bougie with the curved end proximal and the straight end protruding 30 cm beyond the drainage tube tip. The straight end of the gum-elastic bougie was inserted into the oesophagus under laryngoscopic guidance, the laryngoscope removed and the ProSeal LMA in
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Kabir, C. S., and A. R. Hasan. "Does Gauge Placement Matter in Downhole Transient-Data Acquisition?" SPE Reservoir Evaluation & Engineering 1, no. 01 (1998): 64–68. http://dx.doi.org/10.2118/36527-pa.

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Summary Transient pressure data are often collected at various points in the wellbore, including the wellhead, for test interpretation. When data gathering takes place at a point other than the midpoint of producing (MPP) interval, either inadvertently or by design, serious interpretation problems may arise because of wellbore thermal effects. Many field tests conducted on gas, oil, and water injection wells show the severity of this wellbore-induced problem. This paper explores the consequences of thermal effects upon test analysis in some cases and presents new insights into both data collec
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Fajardo, Arthur, Rossana Marie Amongo, Roderick Catriz, et al. "Performance Evaluation of Centrifugal Pump-As-Turbine For Micro Hydro Applications." Philippine Journal of Agricultural and Biosystems Engineering 19, no. 2 (2023): 17–30. http://dx.doi.org/10.48196/019.02.2023.02.

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The Philippines is entirely dependent on imported hydropower (HP) system parts, specifically the turbine and generator. The use of a centrifugal pump as a turbine is a good option for the HP system due to its low cost and wide availability in the market. The performance of the centrifugal pump-as-turbine was evaluated under the following conditions: (1) different head setting, (2) different configurations of the draft tube, and (3) a match with an AC generator. A 75x75mm end suction, non-self-priming centrifugal pump was used in this study. The head settings used were 0.28 kg/cm2 to 0.84 kg/cm
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Djatiwidodo, Djatiwidodo Edi Pratiknyo. "Hyperbaric Oxygen Therapy as Adjuvant Therapy in Nasopharyngeal Cancer : A Literature Review." Surabaya Biomedical Journal 2, no. 2 (2023): 131–39. http://dx.doi.org/10.30649/sbj.v2i2.112.

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Introduction&#x0D; Hyperbaric oxygen therapy (HBOT) may not be widely known. In Indonesia itself, the HBOT application was first carried out in 1960 by the Indonesian Navy Marine Health Institute / Lembaga Kesehatan Kelautan TNI AL (Lakesla) in collaboration with the Naval Central Hospital (Rumah Sakit Pusat Angkatan Laut / RSPAL) Dr. Ramelan Surabaya, where until now the facility is still the largest in Indonesia. Hyperbaric oxygen therapy was first introduced by Behnke in 1930. At that time hyperbaric oxygen therapy was only given to divers to relieve symptoms of decompression sickness (Cais
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Rafferty, Mark, Terence J. Quinn, Jesse Dawson, and Matthew Walters. "Neckties and Cerebrovascular Reactivity in Young Healthy Males: A Pilot Randomised Crossover Trial." Stroke Research and Treatment 2011 (2011): 1–4. http://dx.doi.org/10.4061/2011/692595.

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Background. A necktie may elevate intracranial pressure through compression of venous return. We hypothesised that a tight necktie would deleteriously alter cerebrovascular reactivity.Materials and Methods. A necktie was simulated using bespoke apparatus comprising pneumatic inner-tube with aneroid pressure-gauge. Using a randomised crossover design, cerebrovascular reactivity was measured with the “pseudo-tie” worn inflated or deflated for 5 minutes (simulating tight/loose necktie resp.). Reactivity was calculated using breath hold index (BHI) and paired “t” testing used for comparative analy
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Canut, María Isabel, Maddi Alonso-Agesta, Jessica Botella, and Gemma Julio. "Cauterized suture for complete tube occlusion of Ahmed glaucoma valve in hypotony maculopathy." European Journal of Ophthalmology 30, no. 1 (2019): 221–23. http://dx.doi.org/10.1177/1120672119853750.

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Purpose: To present our experience treating hypotony maculopathy with a simple, minimally invasive, and removable ab interno tube Ahmed glaucoma valve occlusion. Methods: Under topical anesthesia a 5–0 polypropylene suture (Prolene; Ethicon) was inserted into the Ahmed glaucoma valve tube. The length of the tube was measured, and an external suture cauterization was performed to allow an easier and safer fixation in the tube. The suture was introduced into the tube itself with the viscoelastic 27-gauge cannula. Results: This technique was performed in three cases of hypotony maculopathy with a
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