Accedi

Bibliografie tematiche / Rotating ventilator / Articoli di riviste

Segui questo link per vedere altri tipi di pubblicazioni sul tema: Rotating ventilator.

Articoli di riviste sul tema "Rotating ventilator"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 11 febbraio 2022

Cita una fonte nei formati APA, MLA, Chicago, Harvard e in molti altri stili

Scegli il tipo di fonte:

Vedi i top-50 articoli di riviste per l'attività di ricerca sul tema "Rotating ventilator".

Accanto a ogni fonte nell'elenco di riferimenti c'è un pulsante "Aggiungi alla bibliografia". Premilo e genereremo automaticamente la citazione bibliografica dell'opera scelta nello stile citazionale di cui hai bisogno: APA, MLA, Harvard, Chicago, Vancouver ecc.

Puoi anche scaricare il testo completo della pubblicazione scientifica nel formato .pdf e leggere online l'abstract (il sommario) dell'opera se è presente nei metadati.

Vedi gli articoli di riviste di molte aree scientifiche e compila una bibliografia corretta.

1

Renz, Andreas, Julian Praß, Johannes Weber, and Stefan Becker. "Experimental Investigation of a Friction Ventilator." Advanced Engineering Forum 19 (October 2016): 43–49. http://dx.doi.org/10.4028/www.scientific.net/aef.19.43.

Testo completo

Abstract (sommario):

Standard decentralized ventilation systems typically consist of two ventilators for inlet and exhaust air and a heat exchanger for the heat recovery. A recently developed device, a so called friction ventilator, combines these three elements into a single functional element. The ventilator consists of circular plates which are rotating centrally in between the inlet and the outlet duct of a ventilation system and generate a countercurrent flow in the two ducts. Furthermore, the discs act as a rotating heat exchanger between the two air flows. To increase understanding of the energy transfer fr

Gli stili APA, Harvard, Vancouver, ISO e altri

2

Wu, Juan, Ziming Kou, and Jing Liu. "The Acoustical Behavior of Contra-Rotating Fan." Mathematical Problems in Engineering 2018 (2018): 1–8. http://dx.doi.org/10.1155/2018/3739067.

Testo completo

Abstract (sommario):

The noise produced by a contra-rotating ventilator can cause injury to humans. Therefore, it is important to reduce noise caused by ventilators. In this study, the Ffowcs Williams and Hawkings (FW-H) model was used to simulate the acoustics of four different axial impeller spacing points based on the unsteady flow field through a FBD No. 8.0 contra-rotating ventilator. Experiments were conducted to verify the correctness of the numerical model. Meanwhile, the Variable Frequency Drive (VFD) drives the two motors of 55 kW to give the impellers different speeds to distinguish different conditions

Gli stili APA, Harvard, Vancouver, ISO e altri

3

Ma, Zhong Fei, Peng Gang Jin, and Feng Zhao. "Test on Characteristics of the High-Pressure Secondary Rotary Water Gas Jet Ventilation." Advanced Materials Research 594-597 (November 2012): 2167–70. http://dx.doi.org/10.4028/www.scientific.net/amr.594-597.2167.

Testo completo

Abstract (sommario):

In order to reduce the concentration of explosive gas, experimental research was carried out on the high pressure secondary rotating water jet ventilation characteristic, and the principle of high pressure secondary rotating water jet ventilation was analyzed. Experiments of the relationship between pressure and the suction air flow characteristics were carried out with different structure of jet pipe, different structure of nozzles, different throat in high pressure single rotating water jet ventilation, and the secondary rotating ventilation characteristic were tested with different guide va

Gli stili APA, Harvard, Vancouver, ISO e altri

4

Rashid, D. M. H., and N. A. Ahmed. "Study of Aerodynamic Forces on a Rotating Wind Driven Ventilator." Wind Engineering 27, no. 1 (February 2003): 63–72. http://dx.doi.org/10.1260/030952403321833770.

Testo completo

Abstract (sommario):

A wind driven ventilator is a simple, cost-effective and environmentally-friendly device that can improve comfort and the working environment. Unfortunately very little is known about the complex flow field associated with the operation of this device. A wind tunnel investigation of the flow associated with a rotating wind ventilator was, therefore, carried out at the aerodynamic laboratory of the University of New South Wales within the Reynolds number range of 1.1 times 105 to 5.5 times 105. An attempt was also made to study some of the important features associated with operation of a rotat

Gli stili APA, Harvard, Vancouver, ISO e altri

5

Szabó, Ferenc János, and Ágnes Várkuliné Szarka. "Finite Element Study of Rotating Elements of a Ventilator." International Review of Mechanical Engineering (IREME) 13, no. 6 (June 30, 2019): 326. http://dx.doi.org/10.15866/ireme.v13i6.17145.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

6

Farahani. "Simulation of Airflow and Aerodynamic Forces Acting on a Rotating Turbine Ventilator." American Journal of Engineering and Applied Sciences 3, no. 1 (January 1, 2010): 159–70. http://dx.doi.org/10.3844/ajeassp.2010.159.170.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

7

HE, Qiudong. "Analyses on Blade Fracture of Contra-rotating Axial Fan for Mine Local Ventilator and Its Improvement Measures." Journal of Mechanical Engineering 47, no. 24 (2011): 122. http://dx.doi.org/10.3901/jme.2011.24.122.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

8

Cho, Dong-Hyun. "A Study on the Improvement of Efficiency of Heat Transfer on the Heat Recovery Ventilator with Rotating Porous Disk." Journal of Fisheries and Marine Sciences Education 26, no. 6 (December 31, 2014): 1352–57. http://dx.doi.org/10.13000/jfmse.2014.26.6.1352.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

9

Goto, Takahisa, Hayato Saito, Yoshinori Nakata, Shoichi Uezono, Fumito Ichinose, Masanori Uchiyama, and Shigeho Morita. "Effects of Xenon on the Performance of Various Respiratory Flowmeters." Anesthesiology 90, no. 2 (February 1, 1999): 555–63. http://dx.doi.org/10.1097/00000542-199902000-00032.

Testo completo

Abstract (sommario):

Background The anesthetic gas xenon has distinctly different physical properties compared with air, nitrous oxide, or oxygen. This led us to predict that xenon would affect the performance of commercially available flowmeters. Methods Flow was generated by an anesthesia ventilator connected to a lung simulator via a semiclosed breathing circuit. With the system filled with air or with various concentrations of xenon or nitrous oxide in a balance of oxygen, the tidal volume was measured with two rotating vanes, a Pitot tube, a variable-orifice flowmeter, and two constant-temperature hot-wire fl

Gli stili APA, Harvard, Vancouver, ISO e altri

10

Shen, Luke Y., Stephen D. Helmer, Jennifer Huang, Gerayu Niyakorn, and R. Stephen Smith. "“Shift Work” Improves Survival and Reduces Intensive Care Unit Use in Seriously Injured Patients." American Surgeon 73, no. 2 (February 2007): 185–91. http://dx.doi.org/10.1177/000313480707300220.

Testo completo

Abstract (sommario):

We assessed whether a trauma service model with an emphasis on continuity of care by using “shift work” will improve trauma outcomes and cost. This was a case-control cohort study that took place at a university-affiliated Level I trauma center. All patients (n = 4283) evaluated for traumatic injuries between May 1, 2002 and April 30, 2004 were included. During Period I (May 1, 2002 to April 30, 2003), a rotating off-service team provided initial management between 5:00 PM and 7:00 AM. The “day team” provided all other care and was responsible for continuity of care. In Period II (May 1, 2003

Gli stili APA, Harvard, Vancouver, ISO e altri

11

Cortel-LeBlanc, M., J. Landreville, W. Cheung, and A. Pan. "P026: Dominating the vent: A flipped classroom approach to enhance emergency medicine resident ventilator management." CJEM 21, S1 (May 2019): S72. http://dx.doi.org/10.1017/cem.2019.217.

Testo completo

Abstract (sommario):

Innovation Concept: Ventilator management is an essential skill and a training objective for emergency medicine (EM) specialists in Canada. EM trainees obtain the majority of this training during off-service rotations. Previous attempts to strengthen ventilator knowledge include lectures and simulation – both of which are time and resource intensive. Given the unique features of ventilator management in the ED, we developed an ED-specific ventilator curriculum. The purpose of this study is to 1) identify resident needs regarding ventilator curricula and 2) assess resident response to this pilo

Gli stili APA, Harvard, Vancouver, ISO e altri

12

Lam, Wilfred W., David W. Holdsworth, Louise Y. Du, Maria Drangova, David G. McCormack, and Giles E. Santyr. "Micro-CT imaging of rat lung ventilation using continuous image acquisition during xenon gas contrast enhancement." Journal of Applied Physiology 103, no. 5 (November 2007): 1848–56. http://dx.doi.org/10.1152/japplphysiol.00009.2007.

Testo completo

Abstract (sommario):

We measured ventilation (V̇) in seven anesthetized, mechanically ventilated, supine Wistar rats. Images of the whole lung were continuously acquired using a dynamic, flat-panel volumetric micro-computed tomography (micro-CT) scanner during ventilation with a xenon/oxygen (Xe-O2) gas mixture. Forty time-resolved volumes consisting of eighty 0.45-mm-thick slices (covering the entire lung) were acquired in 40 s, using a gantry rotation rate of one rotation per second. The animals were ventilated at a respiratory rate of 60 breaths/min, matching the gantry rotation rate, and imaged without suspend

Gli stili APA, Harvard, Vancouver, ISO e altri

13

Gol'tsov, A. B., K. I. Logachev, O. A. Averkova, V. A. Tkachenko, and I. V. Khodakov. "The investigation of the air flow distribution swirling by the rotating suction cylinder." NOVYE OGNEUPORY (NEW REFRACTORIES), no. 6 (July 26, 2018): 56–60. http://dx.doi.org/10.17073/1683-4518-2018-6-56-60.

Testo completo

Abstract (sommario):

The improvement of the local exhaust ventilation consists in the emission and pollution agents' concentration at the electrical power minimum expenses. The using of the rotating exhaust cylinder in the aspiration hoods can result in the reduction of both the dust loss into the aspiration system and the dust aerosol transportation costs in the air transfer ducts. We investigated the air flow velocity distribution near the rotating exhaust cylinder depending on the rotation frequency and vented air consumption. The obtained results can be applied when the local closed exhaust hoods designing, th

Gli stili APA, Harvard, Vancouver, ISO e altri

14

Kang, So Yeon, Michael DiStefano, Farah Yehia, Maria Koszalka, and William Padula. "PD76 The Value Of Continuous Lateral Rotation Therapy In The ICU." International Journal of Technology Assessment in Health Care 34, S1 (2018): 156. http://dx.doi.org/10.1017/s0266462318003306.

Testo completo

Abstract (sommario):

Introduction:Mechanical ventilation in the intensive care unit (ICU) increases the risk of hospital-acquired conditions (HACs) such as ventilator-associated pneumonia (VAP) and pressure injuries (PrI). Continuous lateral rotation therapy (CLRT) has been shown to reduce VAP and PrI incidence, but the value of switching to CLRT over standard care is presently unknown. We evaluate the cost-effectiveness of CLRT beds compared to standard care in ICUs and determine the return on investment (ROI) associated with its implementation.Methods:A Markov model was constructed to predict health state transi

Gli stili APA, Harvard, Vancouver, ISO e altri

15

Whiteman, K., L. Nachtmann, D. Kramer, S. Sereika, and M. Bierman. "Effects of continuous lateral rotation therapy on pulmonary complications in liver transplant patients." American Journal of Critical Care 4, no. 2 (March 1, 1995): 133–39. http://dx.doi.org/10.4037/ajcc1995.4.2.133.

Testo completo

Abstract (sommario):

BACKGROUND: When liver transplant candidates and recipients suffer from pulmonary complications of immobility, the results can be life-threatening. Continuous lateral rotation therapy has been reported to decrease complications of immobility. OBJECTIVES: To determine whether continuous lateral rotation therapy decreases the duration of mechanical ventilation, intensive care unit length of stay, incidence or resolution of atelectasis, incidence or onset time of lower respiratory tract infection and pneumonia. METHODS: Sixty-nine subjects admitted to a liver transplant intensive care unit at a u

Gli stili APA, Harvard, Vancouver, ISO e altri

16

Whitelaw, W. A., G. T. Ford, K. P. Rimmer, and A. De Troyer. "Intercostal muscles are used during rotation of the thorax in humans." Journal of Applied Physiology 72, no. 5 (May 1, 1992): 1940–44. http://dx.doi.org/10.1152/jappl.1992.72.5.1940.

Testo completo

Abstract (sommario):

To test the idea that the lateral intercostal muscles may be more suited to aid in rotational than respiratory movements of the thorax, we inserted bipolar fine-wire electrodes in external and internal intercostal muscles in the right midaxillary line in nine sitting subjects and examined the pattern of contraction of these muscles during voluntary axial rotations of the thorax (30–35 degrees), resting breathing, and CO2-induced hyperpnea. The right external intercostal muscles were strongly recruited in rotations to the left but were not active in rotations to the right. In contrast, the righ

Gli stili APA, Harvard, Vancouver, ISO e altri

17

Schmidt, Ulrich H., Kanya Kumwilaisak, Edward Bittner, Edward George, and Dean Hess. "Effects of Supervision by Attending Anesthesiologists on Complications of Emergency Tracheal Intubation." Anesthesiology 109, no. 6 (December 1, 2008): 973–77. http://dx.doi.org/10.1097/aln.0b013e31818ddb90.

Testo completo

Abstract (sommario):

Background Emergent intubation is associated with a high complication rate. These intubations are often performed by resident physicians in teaching hospitals. The authors evaluated whether supervision by an anesthesia-trained intensivist decreases complications of emergent intubations. Methods The authors performed a prospective cohort study in an Academic Tertiary Care Hospital. They enrolled 322 consecutive patients who required emergent intubation between November 1, 2006, and April 15, 2008. Emergency intubations are performed by anesthesia residents during their surgical intensive care u

Gli stili APA, Harvard, Vancouver, ISO e altri

18

Y., Gerasymchuk,, Adamenko, O., Lavrishchev, A., and Novoselytskiy, Y. "Determination parameters of the precipitating electrode of the electrotechnical means for cleaning air of livestock buildings from harmful gases and bacterial contamination." Mehanization and electrification of agricultural, no. 9(108) (2019): 141–48. http://dx.doi.org/10.37204/0131-2189-2019-9-17.

Testo completo

Abstract (sommario):

Purpose. Get dependence to determine the mass of the chemical adsorbent which is contained on the rotating precipitating electrode of the electrotechnical means, taking into account the kinetics of the process of air purification of livestock buildings from harmful gases and bacterial contamination with the complex use of electrophysical and chemical methods of decontamination and air purification. Methods. Analysis of the influence of chemical adsorbent and crown discharge field on the efficiency of air purification of livestock buildings from harmful gases and bacterial contamination. Experi

Gli stili APA, Harvard, Vancouver, ISO e altri

19

Que, Cheng-Li, Christof Kolmaga, Louis-Gilles Durand, Suzanne M. Kelly, and Peter T. Macklem. "Phonospirometry for noninvasive measurement of ventilation: methodology and preliminary results." Journal of Applied Physiology 93, no. 4 (October 1, 2002): 1515–26. http://dx.doi.org/10.1152/japplphysiol.00028.2002.

Testo completo

Abstract (sommario):

We measured tracheal flow from tracheal sounds to estimate tidal volume, minute ventilation (V˙i), respiratory frequency, mean inspiratory flow (Vt/Ti), and duty cycle (Ti/Ttot). In 11 normal subjects, 3 patients with unstable airway obstruction, and 3 stable asthmatic patients, we measured tracheal sounds and flow twice: first to derive flow-sound relationships and second to obtain flow-volume relationships from the sound signal. The flow-volume relationship was compared with pneumotach-derived volume. When subjects were seated, facing forward and with neck rotation, flexion, and standing, fl

Gli stili APA, Harvard, Vancouver, ISO e altri

20

Gor, D., J. A. C. Humphrey, and R. Greif. "Ventilated Flow Between Corotating Disks With Large Obstructions in a Fixed Cylindrical Enclosure (Data Bank Contribution)." Journal of Fluids Engineering 116, no. 4 (December 1, 1994): 828–34. http://dx.doi.org/10.1115/1.2911857.

Testo completo

Abstract (sommario):

Time-resolved laser-Doppler velocimeter measurements of the circumferential velocity component were obtained for the flow between the center pair of four disks of common radius R2 corotating at angular velocity Ω in a fixed, cylindrical enclosure. Mean and rms profiles of this velocity component were obtained for two disk rotation speeds (300 and 3600 rpm), two relatively thick tapered obstructions (long and short) placed radially inward midway between each pair of disks, and three ventilation conditions (unventilated, blowing, and sucking) resulting from an imposed inter-disk radial throughfl

Gli stili APA, Harvard, Vancouver, ISO e altri

21

Rodríguez-Nieto, M. J., G. Peces-Barba, N. González Mangado, S. Verbanck, and M. Paiva. "Single-breath washouts in a rotating stretcher." Journal of Applied Physiology 90, no. 4 (April 1, 2001): 1415–23. http://dx.doi.org/10.1152/jappl.2001.90.4.1415.

Testo completo

Abstract (sommario):

Vital capacity single-breath washouts using 90% O2-5% He-5% SF6 as a test gas mixture were performed with subjects sitting on a stool (upright) or recumbent on a stretcher (prone, supine, lateral left, lateral right, with or without rotation at end of inhalation). On the basis of the combinations of supine and prone maneuvers, gravity-dependent contributions to N2 phase III slope and N2 phase IV height in the supine posture were estimated at 18% and 68%, respectively. Whereas both He and SF6 slope decreased from supine to prone, the SF6-He slope difference actually increased ( P = 0.015). N2 p

Gli stili APA, Harvard, Vancouver, ISO e altri

22

Tasic, Milan, Radivoje Mitrovic, Predrag Popovic, and Marko Tasic. "Influence of running conditions on resonant oscillations in fresh-air ventilator blades used in thermal power plants." Thermal Science 13, no. 1 (2009): 139–46. http://dx.doi.org/10.2298/tsci0901139t.

Testo completo

Abstract (sommario):

High frequency cyclic load of fresh air supply to ventilator blades in thermo energetic facilities can cause the occurrence of fretting in the pressed overlap of ventilator shaft and socket. These loads can be generated by the resonant oscillations of ventilator blades and thermal residual stress due to welding. To prevent running in resonant conditions, the manufacturer of the ventilator defined a procedure of adjusting blades natural frequency in the process of production, as well as period control during exploitation period. The numerical simulations and the accelerations measured and prese

Gli stili APA, Harvard, Vancouver, ISO e altri

23

Staudinger, Thomas, Andja Bojic, Ulrike Holzinger, Brigitte Meyer, Marion Rohwer, Friederike Mallner, Peter Schellongowski, et al. "Continuous lateral rotation therapy to prevent ventilator-associated pneumonia*." Critical Care Medicine 38, no. 2 (February 2010): 486–90. http://dx.doi.org/10.1097/ccm.0b013e3181bc8218.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

24

Lu, Yi Ping, Qing Hui Pan, Hui Lan Li, and Jia De Han. "Experimental Study of Flow Field of Large Air-Cooled Turbine Generator for Multi-Ventilation Ducts of Stator." Applied Mechanics and Materials 644-650 (September 2014): 377–80. http://dx.doi.org/10.4028/www.scientific.net/amm.644-650.377.

Testo completo

Abstract (sommario):

To study rotational air flow field of rotor and complicated flow distinction owing to multi-ventilation ducts of stator in a large air-cooled turbine generator, considering axial symmetry of air supply, an experiment setup of ventilation system of semi-machine configuration was built in this paper. At condition of rotating, ventilation is measured by hot-wire anemometer. Firstly, ventilation in 16 different semi-circle radius is got. Measurement shows that ventilation in different radius varies much. Then ventilation of outlet of stator ducts is measured. The result shows that ventilation whic

Gli stili APA, Harvard, Vancouver, ISO e altri

25

Ahrens, Thomas, Marin Kollef, Jena Stewart, and William Shannon. "Effect Of Kinetic Therapy on Pulmonary Complications." American Journal of Critical Care 13, no. 5 (September 1, 2004): 376–82. http://dx.doi.org/10.4037/ajcc2004.13.5.376.

Testo completo

Abstract (sommario):

• Background Optimal turning of critically ill patients is not well established. Kinetic therapy (systematic mechanical rotation of patients with 40° turns) may improve pulmonary function more than the improvement in function achieved via the standard of care (turning patients every 2 hours).• Objective To determine (1) if patients receiving mechanical ventilation who tolerate kinetic therapy have better pulmonary function than do patients treated with standard turning and (2) the cost-effectiveness of kinetic therapy.• Methods A prospective, randomized, multicenter study including 234 medical

Gli stili APA, Harvard, Vancouver, ISO e altri

26

Suryadi, Aris. "THE IMPLEMENTATION OF TURBINE VENTILATOR AS AN ALTERNATIVE POWER PLANT." ADI Journal on Recent Innovation (AJRI) 2, no. 1 (January 21, 2020): 180–85. http://dx.doi.org/10.34306/ajri.v2i1.34.

Testo completo

Abstract (sommario):

Indonesia is actively developing the potential for renewable energy as a substitute for depleting fossil energy reserves. Wind energy is clean energy without polling the environment. Wind energy in Indonesia has great potential, but it is still not optimal enough for its utilization. One form of alternative energy that can be utilized as mechanical energy by wind turbines to convert into electrical energy by dc generators. Ventilators that operate for 24 hours function to suck water and, located on the roof of a warehouse, sports hall . Utilization of wind to become electrical energy is design

Gli stili APA, Harvard, Vancouver, ISO e altri

27

Koopman, Maud, Martijn A. Spruit, Frits M. E. Franssen, Jeannet Delbressine, Emiel F. M. Wouters, Denny Mathew, Anton Vink, and Lowie E. G. W. Vanfleteren. "Effects of Non-Invasive Ventilation Combined with Oxygen Supplementation on Exercise Performance in COPD Patients with Static Lung Hyperinflation and Exercise-Induced Oxygen Desaturation: A Single Blind, Randomized Cross-Over Trial." Journal of Clinical Medicine 8, no. 11 (November 18, 2019): 2012. http://dx.doi.org/10.3390/jcm8112012.

Testo completo

Abstract (sommario):

The effects of non-invasive ventilation (NIV) in addition to supplemental oxygen on exercise performance in patients with chronic obstructive pulmonary disease (COPD) with hyperinflation and exercise-induced desaturation (EID) remain unclear. We hypothesized that these patients would benefit from NIV and that this effect would be an add-on to oxygen therapy. Thirteen COPD patients with a residual volume >150% of predicted, normal resting arterial oxygen pressure (PaO2) and carbon-dioxide pressure (PaCO2) and EID during a six-minute walk test were included. Patients performed four constant w

Gli stili APA, Harvard, Vancouver, ISO e altri

28

Jordan, Rebecca M., Lauryn A. Ullrich, Alexandria Decapua-Guarino, and Brian Klock. "Trends in Surgical Critical Care Training Among General Surgery Residents: Pursuing an Ideal Curriculum." American Surgeon 86, no. 9 (August 17, 2020): 1119–23. http://dx.doi.org/10.1177/0003134820943551.

Testo completo

Abstract (sommario):

Background The Accreditation Council for Graduate Medical Education (ACGME) provides no specific guidelines for surgical critical care (SCC) training during general surgery residency. Growing emphasis is placed on this experience with increasing case requirements and dedicated SCC content on board certification exams. Methods A digital survey was distributed to ACGME-accredited general surgery residencies via email. Respondents reported number and setting of critical care months during residency and rated comfort level within 5 critical care principles and overall satisfaction with their SCC e

Gli stili APA, Harvard, Vancouver, ISO e altri

29

Zhang, Qun Feng, Jin Li Yan, Min Wang, and Zhi Xiang Chen. "CFD Application on Ventilation System of Hydro-Generator." Advanced Materials Research 383-390 (November 2011): 3561–65. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.3561.

Testo completo

Abstract (sommario):

Averaged 3D N-S equations and RNG k-ε equations were solved with parallel computing CFD code on the flow field of dual radial ventilation system without fan for a hydro-generator. The MRF(multiple implicit rotating frame) method was used to simulated the rotating motion of the generator and porous media model were used to simulate the pressure loss of air cooler. Rational tactics were selected to generate calculation grids to compromise with calculation CPU time and result accuracy and the grids of different parts were generated with ICEM-CFD. The flow characteristic of different parts was ana

Gli stili APA, Harvard, Vancouver, ISO e altri

30

Gretchikhin, L. I., and A. I. Hutkouski. "Air Heat Pump in Wind Power." ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations 63, no. 3 (May 28, 2020): 264–84. http://dx.doi.org/10.21122/1029-7448-2020-63-3-264-284.

Testo completo

Abstract (sommario):

An experimental facility has been developed and manufactured to study the disruptive flow in an air heat pump. The propeller of the heat pump does not produce pulling or pushing forces. The external air flow is created by a high speed propeller perpendicular to the plane of rotation of the heat pump propeller and acts as a ventilator. Herewith, a disruptive flow in the back side of the heat pump propeller is being created and conditions for converting the thermal component of the ventilator air flow into electrical energy by an electric power generator are realized. An aerodynamic model of the

Gli stili APA, Harvard, Vancouver, ISO e altri

31

Onuki, Takashi, Shinji Wakao, Hiroaki Takahashi, Masato Tokuhisa, and Jee Won Im. "Design Optimization of Ventilation Holes in Rotating Machines with High Power Density." IEEJ Transactions on Power and Energy 118, no. 10 (1998): 1110–15. http://dx.doi.org/10.1541/ieejpes1990.118.10_1110.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

32

Denson, Joshua Lee, Julie Knoeckel, Sara Kjerengtroen, Rachel Johnson, Bryan McNair, Olivia Thornton, Ivor S. Douglas, Michael E. Wechsler, and Robert E. Burke. "Improving end-of-rotation transitions of care among ICU patients." BMJ Quality & Safety 29, no. 3 (November 4, 2019): 250–59. http://dx.doi.org/10.1136/bmjqs-2019-009867.

Testo completo

Abstract (sommario):

BackgroundHospitalised patients whose inpatient teams rotate off service experience increased mortality related to end-of-rotation care transitions, yet standardised handoff practices are lacking.ObjectiveDevelop and implement a multidisciplinary patient-centred handoff intervention to improve outcomes for patients who are critically ill during end-of-rotation transitions.Design, setting and participantsSingle-centre, controlled pilot study of medical intensive care unit (ICU) patients whose resident team was undergoing end-of-rotation transition at a university hospital from June 2017 to Febr

Gli stili APA, Harvard, Vancouver, ISO e altri

33

Girard, John, and Scott Abrahamson. "On the Flow Structure Due to Corotating Disks With a Ventilated Hub." Journal of Fluids Engineering 115, no. 3 (September 1, 1993): 408–10. http://dx.doi.org/10.1115/1.2910153.

Testo completo

Abstract (sommario):

The effects of hub ventilation on the flow structure between corotating disks enclosed in a stationary cylindrical shroud have been studied using quantitative flow visualization. The ventilation flow resulted from the pumping of the rotating disks. The geometry of the ventilation holes and the total open area were varied and the flow structure was compared to the solid hub case. Many of the features present in the solid hub case remained in modified form. The radial extent of the region purged by the through-flow was independent of the hub open area, which ranged from 3.4 to 37.5 percent of th

Gli stili APA, Harvard, Vancouver, ISO e altri

34

Berra, Lorenzo, Massimo Cressoni, Gianluigi Li Bassi, Theodor Kolobow, Mauro Panigada, and Alberto Zanella. "Continuous lateral rotation therapy to prevent ventilator-associated pneumonia: The neglected effects of gravity on pathogenesis of ventilator-associated pneumonia." Critical Care Medicine 38, no. 3 (March 2010): 1018–19. http://dx.doi.org/10.1097/ccm.0b013e3181cc40fc.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

35

Staudinger, Thomas. "Continuous lateral rotation therapy to prevent ventilator-associated pneumonia: The neglected effects of gravity on pathogenesis of ventilator-associated pneumonia." Critical Care Medicine 38, no. 3 (March 2010): 1019. http://dx.doi.org/10.1097/ccm.0b013e3181cfb57b.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

36

Wu, Wei Xiong, Yun Zhao, and Jie Qiang Zhao. "A Controller Development Based on PLC for Climate Control of Agricultural Greenhouses." Applied Mechanics and Materials 336-338 (July 2013): 1266–70. http://dx.doi.org/10.4028/www.scientific.net/amm.336-338.1266.

Testo completo

Abstract (sommario):

Forced ventilation has more accuracy in climate control of agricultural greenhouses. It is worthwhile to apply some energy saving measures to overcome the disadvantage of high power consumption in fan driving of forced ventilation. Here we present a new developed controller based on PLC which mainly can control the ventilation fans rotation speed in combination with variable frequency drive except for manipulating other facilities in greenhouse like pad, shading screen etc. The control system integrates a sense module which measuring solar radiation, temperature and humidity inside and outside

Gli stili APA, Harvard, Vancouver, ISO e altri

37

Mishra, Sandeep Kumar, Mohammad Nawaz, M. V. S. Satyapraksh, Satyen Parida, Prasanna Udupi Bidkar, Balachander Hemavathy, and Pankaj Kundra. "Influence of Head and Neck Position on Oropharyngeal Leak Pressure and Cuff Position with the ProSeal Laryngeal Mask Airway and the I-Gel: A Randomized Clinical Trial." Anesthesiology Research and Practice 2015 (2015): 1–7. http://dx.doi.org/10.1155/2015/705869.

Testo completo

Abstract (sommario):

Background. This study was designed to assess and compare the effect of head and neck position on the oropharyngeal leak pressures and cuff position (employing fibreoptic view of the glottis) and ventilation scores between ProSeal LMA and the I-gel.Material and Methods. After induction of anesthesia, the supraglottic device was inserted and ventilation confirmed. The position of the head was randomly changed from neutral to flexion, extension, and lateral rotation (left). The oropharyngeal leak pressures, fibreoptic view of glottis, ventilation scores, and delivered tidal volumes and end tidal

Gli stili APA, Harvard, Vancouver, ISO e altri

38

Hamlin, Shannan K., Sandra K. Hanneman, Sheryln Wachtel, and Gary Gusick. "Adverse Hemodynamic Effects of Lateral Rotation During Mechanical Ventilation." Dimensions of Critical Care Nursing 27, no. 2 (March 2008): 54–61. http://dx.doi.org/10.1097/01.dcc.0000311593.87097.6a.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

39

Zheng, Jianwen, Qiuhua Tao, and Li Li. "Wind Pressure Coefficient on a Multi-Storey Building with External Shading Louvers." Applied Sciences 10, no. 3 (February 7, 2020): 1128. http://dx.doi.org/10.3390/app10031128.

Testo completo

Abstract (sommario):

Wind characteristics on building surfaces are used to evaluate natural ventilation of a building. As a type of building component, external shading louvers are applied in hot climatic regions to block solar radiation and provide better visual environments. The structure of external louvers can affect wind-induced characteristics, such as convective heat transfer coefficient, wind pressure and pollutant dispersion around building envelopes. This paper aims to analyze the potential ventilation capacity of a multi-storey building with shading louvers, based on wind pressure coefficient by the num

Gli stili APA, Harvard, Vancouver, ISO e altri

40

Wang, Yi, Pan Lu, Hai Bing Yao, Jia Ping Liu, and Lu Lu Chen. "The Analysis of the Impact of the Louver on the Natural Ventilation." Advanced Materials Research 243-249 (May 2011): 6997–7000. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.6997.

Testo completo

Abstract (sommario):

The louver affects natural ventilation rate and indoor air distribution. In this paper, the wind velocity profile and pressure distribution in the natural ventilation model building were simulated through CFD. And how different rotation angles of the shutter and different incidence angles of the wind affect natural ventilation rate were studied. Then, the influences of shutters on the discharge coefficients were analyzed, and use principles of the louver equipped in the building were proposed.

Gli stili APA, Harvard, Vancouver, ISO e altri

41

Myhal, I. I., U. A. Fesenko, A. O. Dvorakevich, and A. A. Albokrinov. "The ventilation parameters during the Nuss procedure for repair of pectus excavatum." Acta Medica Leopoliensia 26, no. 2-3 (2020): 28–37. http://dx.doi.org/10.25040/aml2020.02-03.028.

Testo completo

Abstract (sommario):

The ventilation parameters during the Nuss procedure for repair of pectus excavatum depend on surgical procedures and airway protection technique. The aim of the study: analyzing the ventilation parameters during the Nuss procedure for repair of pectus excavatum according to the airway protection technique. Material and Methods. The observational prospective study included 60 adolescents (boys/girls=47/13) who had undergone the Nuss procedure for repair of pectus excavatum under a combination of general anesthesia with different types of regional blocks. The patients were randomized into two g

Gli stili APA, Harvard, Vancouver, ISO e altri

42

Hanneman, S. K., G. M. Gusick, S. K. Hamlin, S. J. Wachtel, S. G. Cron, D. J. Jones, and S. A. Oldham. "Manual vs Automated Lateral Rotation to Reduce Preventable Pulmonary Complications in Ventilator Patients." American Journal of Critical Care 24, no. 1 (December 31, 2014): 24–32. http://dx.doi.org/10.4037/ajcc2015171.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

43

Kiewkem, T., P. Chaiwiwatworakul, and S. Chirarattananon. "Desiccant Dehumidification System for Space Radiant Cooling in Tropical Climate." Advanced Materials Research 622-623 (December 2012): 1575–79. http://dx.doi.org/10.4028/www.scientific.net/amr.622-623.1575.

Testo completo

Abstract (sommario):

This paper presents an experimental and simulation study on application of a rotating desiccant dehumidification system under a tropical climate. The system was used to dehumidify the ventilation air before supplying to a space where a radiant cooling system was installed to provide thermal comfort. In the study, a computer program of the desiccant system was coded and used to evaluate the system performances. The experimental results show good agreement with the results from coded program. Using the program, the simulation results demonstrate that the desiccant system can reduce and handle th

Gli stili APA, Harvard, Vancouver, ISO e altri

44

Pakosta, Jiří, and Gabriela Achtenová. "Joint Shaft Test Stand." Journal of Middle European Construction and Design of Cars 15, no. 1 (June 27, 2017): 11–14. http://dx.doi.org/10.1515/mecdc-2017-0003.

Testo completo

Abstract (sommario):

Abstract The article focuses on description of design of the test stand for shafts with universal joints and constant velocity joints. The shafts can be loaded by torque at specified speed of rotation, while retaining the possibility of setting a variable angle between input and output. All shafts are instrumented with contactless signal transmission. In addition, ventilator simulates the cooling derived from the driving speed.

Gli stili APA, Harvard, Vancouver, ISO e altri

45

Lo¨f, George O. G., Gerald Cler, and Thomas Brisbane. "Performance of a Solar Desiccant Cooling System." Journal of Solar Energy Engineering 110, no. 3 (August 1, 1988): 165–71. http://dx.doi.org/10.1115/1.3268252.

Testo completo

Abstract (sommario):

A solar desiccant cooling system was operated at the Solar Energy Applications Laboratory, Colorado State University, throughout the 1986 summer. The system comprises an American Solar King fresh air heating/desiccant evaporative cooling unit, a Sunmaster evacuated tube solar collector, hot water solar storage tank, auxiliary electric boiler, controls, and accessories. The cooling unit is operated in the ventilation mode, fresh air being dried in a rotating desiccant matrix, and cooled by heat exchange and evaporative cooling. Return air is used as a cooling medium in a rotating heat exchange

Gli stili APA, Harvard, Vancouver, ISO e altri

46

He, Qiu Dong, Wen Qi Yu, and Shu Fen Xiao. "Impeller Finite Element Analysis of Extractable Explosion-Proof Contra-Rotating Axial Fan for Mine Local Ventilation FBDC." Advanced Materials Research 605-607 (December 2012): 1372–76. http://dx.doi.org/10.4028/www.scientific.net/amr.605-607.1372.

Testo completo

Abstract (sommario):

To improve the impeller safety and reliability of extractable explosion-proof contra-rotating axial fan for mine local ventilation, Extractable Fan FBDC№9.0/2×30 was taken as the research object, and an approximate three-dimensional finite element computation model was built by using ANSYS software. The stress and displacement were calculated, too. By testing, the fan works stably. The air quantity is 655-978 m3/min, total pressure, 3443-412Pa, static pressure, 3314-118Pa. And the highest static pressure efficiency is up to 70.35%, A-weight Specific Sound Level is 17.5dB. Furthermore, the inte

Gli stili APA, Harvard, Vancouver, ISO e altri

47

Hubmayr, R. D., J. R. Rodarte, B. J. Walters, and F. M. Tonelli. "Regional ventilation during spontaneous breathing and mechanical ventilation in dogs." Journal of Applied Physiology 63, no. 6 (December 1, 1987): 2467–75. http://dx.doi.org/10.1152/jappl.1987.63.6.2467.

Testo completo

Abstract (sommario):

We evaluated the effects of the different patterns of chest wall deformation that occur with different body positions and modes of breathing on regional lung deformation and ventilation. Using the parenchymal marker technique, we determined regional lung behavior during mechanical ventilation and spontaneous breathing in five anesthetized recumbent dogs. Regional lung behavior was related to the patterns of diaphragm motion estimated from X-ray projection images obtained at functional residual capacity (FRC) and end inspiration. Our results indicate that 1) in the prone and supine positions, F

Gli stili APA, Harvard, Vancouver, ISO e altri

48

Yamaguchi, Yuzo, Takumi Yoshimizu, Yoshihiro Muta, and Mitsuo Tashiro. "A Study on Catheter Drives for Automatic Aspiration Working with Ventilator." Journal of Robotics and Mechatronics 19, no. 3 (June 20, 2007): 331–38. http://dx.doi.org/10.20965/jrm.2007.p0331.

Testo completo

Abstract (sommario):

We developed a catheter drive with two rotors that pinch an aspiration catheter between them and incline along the perpendicular of the catheter axis at mutually opposite angles. Rotors are driven with the same torque in opposite directions to minimize residual torque devolving on the patient being treated. The catheter drive enables a flexible 4 mm diameter plastic catheter to be inserted into and withdrawn from a respiratory cannula over 200 mm long at a constant speed of 30 mm/s accompanying catheter rotation. The catheter drive is about 30 g mass, including a joint to a ventilator and a jo

Gli stili APA, Harvard, Vancouver, ISO e altri

49

Zhu, Xiaocheng, Wanlai Lin, and Zhaohui Du. "Experimental and Numerical Investigation of the Flow Field in the Tip Region of an Axial Ventilation Fan." Journal of Fluids Engineering 127, no. 2 (December 28, 2004): 299–307. http://dx.doi.org/10.1115/1.1881654.

Testo completo

Abstract (sommario):

The tip leakage flow in an axial ventilation fan with various tip clearances is investigated by experimental measurement and numerical simulation. For a low-rotating-speed ventilation fan with a large tip clearance, both experimental measurement and numerical simulation indicate that the leakage flow originating from the tip clearance along the chord rolls up into a three-dimensional spiral structure to form a leakage flow vortex. The mixing interaction between the tip leakage flow and the main flow produces a low axial velocity region in the tip region, which leads to blockage of the main flo

Gli stili APA, Harvard, Vancouver, ISO e altri

50

Zhang, Xiaobin, Weibing Zhu, Lei Qian, and Miao Li. "Research on Performance Prediction Model of Impeller-Type Breather." Applied Sciences 9, no. 17 (August 26, 2019): 3504. http://dx.doi.org/10.3390/app9173504.

Testo completo

Abstract (sommario):

To investigate the characteristics of separation and resistance of an impeller-type breather in an aeroengine lubrication system, orthogonal test design is used in calculation of the operating condition. Also, phase coupling of the RNG(Renormalization Group) k − ε model and the DPM model (Discrete Phase Model) is used in calculating the selected operating condition. Through analysis of the results, combined with dimensional analysis, it shows the significance of various influencing factors and the optimal level. Based on this, a general formed dimensionless group equation is established for co

Gli stili APA, Harvard, Vancouver, ISO e altri

Offriamo sconti su tutti i piani premium per gli autori le cui opere sono incluse in raccolte letterarie tematiche. Contattaci per ottenere un codice promozionale unico!