Journal articles: 'Air Induction System'

1

Solomin, Andrey V. "Combination Traction and Lateral Stabilisation System for Magnetic Levitation Transport." Transportation systems and technology 3, no. 4 (December 15, 2017): 107–26. http://dx.doi.org/10.17816/transsyst201734107-126.

Full text

Abstract:

The problems of improvement of modern types of transport and creation of new ones are important and topical for the human society development. One of the most promising and environmentally-friendly modes of transport is the high-speed maglev transport, moving at speeds of approximately 500 km/h. Objective. Justification of linear induction motor, development and research of various constructions of this type of motors. Methods. Description of linear induction motor with longitudinal and transverse magnetic flux for combined traction and lateral stabilisation system of maglev transport, having increased lateral stabilisation forces. The mathematical modelling of magnetomotive force (MF) in the air gap of traction linear motor of this type has been conducted. To analyse the MF the assumption has been made about even distribution of magnetic induction in the air gap in transverse direction and its sinusoidal longitudinal direction, making it possible to develop new mathematical model of MF distribution in the air gap of linear induction motor with longitudinal and transverse magnetic flux Results. The developed mathematical model for calculation of MF on traction linear machine will enable increasing accuracy of traction and lateral stabilisation combined system forces for maglev transport. The same relates to mutual location of inductor to the secondary element. All this proves the successful ten-year commercial operation experience of magnetically suspended train carrying passengers from an airport to Shanghai, P.R. China. The values of traction and lateral stabilisation forces of linear induction motor with longitudinal and transverse magnetic flux is greatly influenced by the character of current distribution in the secondary element. The character itself is influenced by MF distribution in the air gap.

APA, Harvard, Vancouver, ISO, and other styles

2

Verkleeren, Ronald L. "Noise attenuation device for air induction system for internal combustion engine." Journal of the Acoustical Society of America 98, no. 1 (July 1995): 26. http://dx.doi.org/10.1121/1.413716.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Si, Qiang, and Xiaosong Zhang. "Experimental and Numerical Study of the Radiant Induction-Unit and the Induction Radiant Air-Conditioning System." Energies 10, no. 1 (December 27, 2016): 26. http://dx.doi.org/10.3390/en10010026.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Si, Qiang, and Xiaosong Zhang. "Performance Evaluation and Experimental Study of the Induction Radiant Air-conditioning System." Procedia Engineering 121 (2015): 1795–804. http://dx.doi.org/10.1016/j.proeng.2015.09.159.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Toro García, Nicolás, Yeison Alberto Garcés Gómez, and Fredy Edimer Hoyos Velasco. "Parameter estimation of three-phase linear induction motor by a DSP-based electric-drives system." International Journal of Electrical and Computer Engineering (IJECE) 10, no. 1 (February 1, 2020): 626. http://dx.doi.org/10.11591/ijece.v10i1.pp626-636.

Full text

Abstract:

This work describes a method to characterize a three-phase linear induction motor in order to determine the various parameters used in its per-phase equivalent circuit by a DSP-based electric-drives system. In LIM (Linear Induction Motor), the air gap is very large compared with the RIMs (Rotary Induction Motors). Further, the secondary part normally does not have slotted structure. It is just made of aluminum and steel plates. Therefore, the effective air gap is larger than the physical air gap. High air gap makes a larger leakage inductance. It leads to lower efficiency and lower power factor. DC resistance test will be done to determine the value of Rs. The primary Inductance Ls will be calculated by running the LIM at synchronous speed. The secondary parameters i.e. Llr and Rr′ will be calculated by blocked-mover test. The experiment for no load test is shown and include a DC motor coupled to the LIM under test. Two methods to calculate the secondary parameters are described.

APA, Harvard, Vancouver, ISO, and other styles

6

Zain, Shukri, and Shaari M. Fazri. "An Investigation of Supercharged Air Filter System on the Performance of a Spark Ignition Engine." Applied Mechanics and Materials 465-466 (December 2013): 443–47. http://dx.doi.org/10.4028/www.scientific.net/amm.465-466.443.

Full text

Abstract:

Considering the enhancement device for air intake systems have been widely available in the market for automotive engines, in this paper, the effect of Supercharged Air Filter (SAF) system on a Spark Ignition (SI) engine were experimentally investigated. Three different types of air filter; standard, conical shape air filter and SAF were tested on a four-stroke single-cylinder engine. The engine was coupled to a 20kW generator dynamometer to measure engine performance parameters; engine torque, engine power (B.P), brake thermal efficiency (BTE), brake specific fuel consumption (BSFC) and brake mean effective pressure (BMEP) at various engine speeds with maximum engine load. The results show that the forced induction system can affect the engine performance but it will make the engines fuel consumption higher than standard system.

APA, Harvard, Vancouver, ISO, and other styles

7

Zhang, Weiguo, Rakesh Khurana, Mark Likich, and Mac Lynch. "Optimization of a Porous Ducted Air Induction System Using Taguchi's Parameter Design Method." SAE International Journal of Passenger Cars - Mechanical Systems 7, no. 2 (April 1, 2014): 816–21. http://dx.doi.org/10.4271/2014-01-0887.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Dehner, Rick, Ahmet Selamet, Emel Selamet, Philip Keller, John ShuttyKeller, Kevin Tallio, Keith Miazgowicz, and Robert Wade. "Simulation of surge in the air induction system of turbocharged internal combustion engines." Noise Control Engineering Journal 65, no. 4 (July 1, 2017): 275–87. http://dx.doi.org/10.3397/1/376544.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

KIMURA, Kentaro. "Conservation of Energy by Current of Air Control : Swirling Induction Type HVAC System." Journal of the Society of Mechanical Engineers 112, no. 1087 (2009): 458–59. http://dx.doi.org/10.1299/jsmemag.112.1087_458.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

SARAVANAN, N., and G. NAGARAJAN. "An experimental investigation of hydrogen-enriched air induction in a diesel engine system." International Journal of Hydrogen Energy 33, no. 6 (March 2008): 1769–75. http://dx.doi.org/10.1016/j.ijhydene.2007.12.065.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Eldeeb, Hassan, Haisen Zhao, and Osama Mohammed. "Effect of Stator Insulation Failure on the Motor Drive System Performance." Applied Computational Electromagnetics Society 35, no. 11 (February 5, 2021): 1370–71. http://dx.doi.org/10.47037/2020.aces.j.351154.

Full text

Abstract:

This study investigates the influence of the stator’s turn-to-turn failures (TTFs) on the electromagnetic (EM) fields, such as air gap flux density, flux density in the stator, and rotor iron core inside of direct self-control (DSC) driven induction machines (IMs). The purpose of the investigation is to capture the fault signatures in the air gap EM flux for detecting the stator’s fault at its embryonic stage.

APA, Harvard, Vancouver, ISO, and other styles

12

Cong, Jiang, and Yu Hui. "Research on the Thermo-Economics Calculation Model for Indirect Air-Cooled System." Advanced Materials Research 953-954 (June 2014): 876–79. http://dx.doi.org/10.4028/www.scientific.net/amr.953-954.876.

Full text

Abstract:

Based on the research about the part load operation calculation model of condenser pressure and theoretical scrupulous induction,this paper provides the calculation model about the influence parameters of cold end system for thermo-economics in Hailler indirect air-cooled system,and it can provide a strong theoretical basis for improving the performance of Hailler cold end system.

APA, Harvard, Vancouver, ISO, and other styles

13

Xue, Zhao Mei. "Development and Realization of Air Flow On-Line Monitoring System in Utility Boiler Based on AC Induction." Advanced Materials Research 383-390 (November 2011): 4831–36. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.4831.

Full text

Abstract:

Combustion control is the most important aspect in boiler unit operation, while the boiler air flow monitoring is the main content of combustion monitoring. Therefore, real-time and accurate online monitoring of the air flow in boiler main and branch pipes is of great importance for the economy, safety and environmental protection of the boiler combustion. This paper mainly introduces an air flow on-line monitoring system in utility boiler based on AC induction. By using the international advanced AC charge-coupling technology and digital signal processing technology, it overcomes the present technique difficulties of air flow on-line monitoring system. It has the advantages of high measuring accuracy and easy installation and maintenance. Also, it is applicable to the air flow on-line monitoring in different types of air ducts, therefore, it can bring certain economic benefits and have the prospect of popularization and application.

APA, Harvard, Vancouver, ISO, and other styles

14

Hu, Guo Wen, Jin Tian Huang, and Li Sheng Zhang. "Study on the Control Technology Device of Alternating Magnetic Field Inducing the Plants to Breed." Advanced Materials Research 655-657 (January 2013): 2001–5. http://dx.doi.org/10.4028/www.scientific.net/amr.655-657.2001.

Full text

Abstract:

Controlled and alternating induction magnetic field generation device which induces plant seeds to breed on floor space has been developed. The incentive ferrite induction coil is used in the device to produce induced magnetic field. In order to improve the conversion efficiency of the system electrical energy to magnetic energy, the RLC series resonant circuit is chosen in the circuit of output magnetic field. The induction magnetic field in the air gap is the work area for seeds experiment. The frequency and intensity of inductive magnetic field in the air gap changes as the current changes in coils. Its adjustable frequency range: 20~200Hz, adjustable field range: 0~500Gs. Changing the magnetic field frequency, magnetic field intensity and duration, can provide different growth environment for the seeds in order to increase production. The experimental study of rice seeds shows that the test result is obviously better than traditional biological magnetization induced breeding technique of fixed magnetic poles.

APA, Harvard, Vancouver, ISO, and other styles

15

Wang, Zhiyi, Jingfan Li, and Dongming Wang. "Performance test & analysis on fan coil unit and improved induction air unit system." IOP Conference Series: Earth and Environmental Science 371 (December 13, 2019): 052004. http://dx.doi.org/10.1088/1755-1315/371/5/052004.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Ahmedi, Ranaji Arib Hafiz Ayyub Akbar. "Forced Induction Technologies in an IC Engine: A Review." International Journal for Research in Applied Science and Engineering Technology 9, no. VI (June 25, 2021): 2766–70. http://dx.doi.org/10.22214/ijraset.2021.35582.

Full text

Abstract:

This study has been undertaken to show the performance enhancement of engines using different Forced induction technologies. Forced induction technology like turbocharging and supercharging can enhance the performance of an internal combustion engine by compressing inlet air charge, allowing full engine power to be produced efficiently. As the fuel economy and greenhouse emission standards are projected to be far more stringent globally, the use of a Forced induction engine in passenger cars and light-duty trucks has become an inevitable trend within the automotive industry. A turbocharger system can effectively improve the power and torque of an engine, but turbo hysteresis exists. A mechanical supercharging system can boost at low speed, but the efficiency is lower. An electric supercharger can effectively improve the intake air at the early stage of accelerated working conditions, however, an electric supercharger will consume the engine power. The addition of Forced induction technologies to an IC engine helps with the scope of downsizing it. This review brings forward all the aspects of Forced induction technologies

APA, Harvard, Vancouver, ISO, and other styles

17

Yu, Xin Qi, Zhi Xu, Qing Gang Liu, Dong Dong Yuan, and Jia Hui Yu. "Application of Cold Water Cycle for Indoor Cooling System." Advanced Materials Research 953-954 (June 2014): 809–12. http://dx.doi.org/10.4028/www.scientific.net/amr.953-954.809.

Full text

Abstract:

A small indoor cooling system through cold water circulation is introduced in this paper. The system mainly includes cooling pool, cold water circulation equipment, indoor heat exchanger, temperature measurement equipment and induction controlling equipment. The indoor cooling is achieved by heat transfer between the natural underground water of lower temperature and indoor air of higher temperature, and it is different from the traditional compression refrigeration system in which a great amount of electric energy is consumed while the refrigerant is compressed. Compared with the ordinary air conditioning system, this system has obvious advantages on economy, application potential and energy conservation in rural developing areas.

APA, Harvard, Vancouver, ISO, and other styles

18

STOYAKIN, G. M., A. V. KOSTIN, and S. N. NAUMENKO. "Development of an air conditioning system with individual regulation of temperature and air flow rate in a compartment of a passenger car." VNIIZHT Scientific Journal 80, no. 1 (April 12, 2021): 30–34. http://dx.doi.org/10.21780/2223-9731-2021-80-1-30-34.

Full text

Abstract:

Maintaining optimal parameters of the microclimate in the car along the route is the most important requirement for the passenger’s travel. In the 1st class passenger cars, maintaining optimal microclimate parameters is achieved through the operation of the air conditioning system, which provides individual regulation of the air temperature in each compartment. Individual air temperature control systems used in air conditioning systems are divided into two groups: active and passive.The article proposes for consideration a combined active-passive system with a separate air supply with a lower and higher temperature compared to the temperature maintained in the compartment and the installation of individual induction terminals, which makes it possible to increase the efficiency of individual regulation of air parameters in the compartment.To assess the uniformity of temperature distribution and air flow rate over the car volume with the proposed control scheme, a three-dimensional modeling of the distribution of these parameters in the compartment was carried out on the basis of Autodesk CFD software.The given simulation results indicate the uniformity of temperature and air flow rate distribution over the compartment volume, which makes it possible to characterize the proposed system as sufficiently energy efficient, easy to operate and reliable in operation.

APA, Harvard, Vancouver, ISO, and other styles

19

Jaroszczyk, T., J. Wake, and M. J. Connor. "Factors Affecting the Performance of Engine Air Filters." Journal of Engineering for Gas Turbines and Power 115, no. 4 (October 1, 1993): 693–99. http://dx.doi.org/10.1115/1.2906761.

Full text

Abstract:

Abrasive particles entering an engine because of inadequate air filtration can cause excessive wear, which may lead to premature engine failure. Despite the importance of filtration in engine systems, there is little understanding of the dynamics of the filtration process. Often, limited space is available for an engine air induction system. Therefore, filters are designed in smaller packages, resulting in higher aerosol velocities through the primary filter material. High aerosol velocities may cause dust re-entrainment and increase the amount of dust penetrating the filter. Our experiments with cellulose and synthetic-type filter media show examples of dust reentrainment for fine and coarse dust. Conditions for dust particle re-entrainment are discussed.

APA, Harvard, Vancouver, ISO, and other styles

20

Yin, Mu Yi, Ling Zhang, Peng Zhu, and Fei Guan. "Control for Optimized Air-Gap Magnetic Field of Five-Phase Induction Motor through Dual-Plane Asynchronous Rotation Transformation." Applied Mechanics and Materials 347-350 (August 2013): 486–90. http://dx.doi.org/10.4028/www.scientific.net/amm.347-350.486.

Full text

Abstract:

This paper presents a control scheme with an optimized air-gap magnetic field for five-phase induction motor, the control objective is to generate a quasi-square magnetic flux density by the control of excitation and torque currents in the two planes. In this paper, the decoupling vector control model of five-phase induction motor in d1-q1-d3-q3 coordinate system is analyzed, and the direct and quadrature current components in the third harmonic plane as non-linear functions of the fundamental are built, which guarantee the air-gap magnetic to be a constant quasi-square waveform irrespective of the mechanical load, and then the third harmonic current injected method for improved air-gap magnetic field is proposed. Finally, the simulations by Matlab/Simulink and experiments are implanted on a 5.5 kW, five-phase concentrated full-pitch windings induction motor. The results indicate that the proposed method can satisfy the requirement of a quasi-square air-gap flux density, and the air-gap magnetic field gets improved.

APA, Harvard, Vancouver, ISO, and other styles

21

Bu, Wen Shao, Cong Lin Zu, Chun Xiao Lu, and Xin Wen Niu. "Decoupling Control Strategy of Three-Phase Bearingless Induction Motor." Applied Mechanics and Materials 433-435 (October 2013): 1154–60. http://dx.doi.org/10.4028/www.scientific.net/amm.433-435.1154.

Full text

Abstract:

For the strong coupling problem of three-phase bearingless induction motor which is a multi- variable and nonlinear object, a kind of decoupling control strategy based on inverse system method is proposed. The reversibility of torque subsystem was analyzed based on rotor flux orientation, and the decoupling control strategy based on inverse system method was analyzed. Then the torque system was decoupled into two second-order linear subsystems, i.e. the rotor speed subsystems and the rotor flux subsystems. The suspension system adopts negative feedback control; the required air-gap flux linkage of torque system was obtained from the rotor flux and stator current. Finally, synthesis and simulation of the overall control system were researched. Simulation results demonstrate that good performance of decoupling control can be achieved. The presented control strategy is feasible and available.

APA, Harvard, Vancouver, ISO, and other styles

22

Gunawan, Ridwan, Feri Yusivar, and Budiyanto Budiyanto. "The Self Exitated Induction Generator with Observation Magnetizing Characteristic in The Air Gap." International Journal of Power Electronics and Drive Systems (IJPEDS) 5, no. 3 (February 1, 2015): 355. http://dx.doi.org/10.11591/ijpeds.v5.i3.pp355-365.

Full text

Abstract:

This paper discusses the Self Exitated induction Generator (SEIG) by approaching the induction machine, physically and mathematically which then transformed from three-phase frame abc to-axis frame, direct axis and quadratur-axis. Based on the reactive power demand of induction machine, capacitor mounted on the stator of the induction machine then do the physical and mathematical approach of the system to obtain a state space model. Underknown relationships, magnetization reactance and magnetizing current is not linear, so do mathematical approach to the magnetization reactance equation used in the calculation. Obtained state space model and the magnetic reactance equation is simulated by Runge kutta method of fourth order. The equation of reactance, is simulated by first using the polynomial equation and second using the exponent equation. The load voltage at d axis and q axis using the polynomial laggs 640µs to the exponent equation. The polynomial voltage magnetitude is less than 0.6068 volt from the exponent voltage magnitude

APA, Harvard, Vancouver, ISO, and other styles

23

Baqari, F., and B. Vahidi. "Small-compressed air energy storage system integrated with induction generator for metropolises: A case study." Renewable and Sustainable Energy Reviews 21 (May 2013): 365–70. http://dx.doi.org/10.1016/j.rser.2012.12.040.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Abbass, H. A., N. Raman, and M. V. Narasimhan. "Effect of Throttle Configuration on Wall Flow Behaviour of Fuel in a Carburetted Induction System." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 208, no. 2 (April 1994): 109–22. http://dx.doi.org/10.1243/pime_proc_1994_208_169_02.

Full text

Abstract:

The wall mass flow of fuel in the manifold of a carburetted induction system, known to have a significant effect on fuel maldistribution and air-fuel ratio excursion, is studied experimentally with a conventional and variable-area convergent/divergent throttling device. The thickness and velocity of the wall film is calculated using the measured wall mass flow. The effect of the stream velocity, throttle position and air—fuel ratio on wall mass flow and on the thickness and velocity of the film is reported. The wall mass flow decreases as the stream velocity increases and shows a tendency to stabilize at a velocity of about 100 m/s. It also decreases with smaller throttle openings and leaner mixtures. However, with the conventional throttle it shows a tendency to increase for throttle openings less than a quarter. The film thickness is found to be in the range of 0.014–0.025 mm. The effect of the experimental parameters on film thickness is similar to that on wall mass flow. The film velocity is in the range of 20–54 mm/s and is influenced by the air—fuel ratio and throttle position. Film velocity increases as the stream velocity increases for a film thickness larger than 0.1 mm. For a film thickness less than 0.1 mm, stream velocity is observed to have no effect on film velocity. The effect of the new throttling device in reducing wall mass flow is very significant in the near closed to part throttle conditions.

APA, Harvard, Vancouver, ISO, and other styles

25

Zhang, Zhi Qiang, and Bao Jun Ge. "Calculation on Thermal Field of a Doubly-Fed Induction Generator with Axial-Radial Ventilation Cooling System." Advanced Materials Research 383-390 (November 2011): 7004–10. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.7004.

Full text

Abstract:

A type of doubly-fed induction generator with air-water cooling and axial-radial ventilation cooling system is proposed in this paper. A half-axial segment stator-rotor coupled thermal field 3D model of the doubly-fed induction generator prototype is built with some properly assumptions, according to its symmetry in electromagnetic structure and cooling system. Stator-rotor coupled thermal field distribution of prototype is calculated under rated operating. The influence of water mass-flow and number of cooling-ribs to the thermal field distribution is also studied with the 3D model.

APA, Harvard, Vancouver, ISO, and other styles

26

Shang, Shao Wen, and Yan Xing. "Comparison of Air Distribution of Induced Ventilation System's Different Exhaust Way in Underground Garage." Advanced Materials Research 805-806 (September 2013): 1547–50. http://dx.doi.org/10.4028/www.scientific.net/amr.805-806.1547.

Full text

Abstract:

Induced ventilation system with the advantages of simple system and convenient installation has been widely used in China's underground garage ventilation design and showed an increasing trend. In this paper, the numerical simulation is done to the different air exhaust way of induction ventilation system of an underground garage. The two air exhaust ways are upper exhaust and upper 1/3 and lower 2/3. By analyzing airflow organization and pollutant concentration of the two exhaust ways, we can derive that upper 1/3 and lower 2/3 air exhaust way is conducive to the discharge of pollutants.

APA, Harvard, Vancouver, ISO, and other styles

27

Szychta, Elzbieta, and Leszek Szychta. "Comparative Analysis of Effectiveness of Resistance and Induction Turnout Heating." Energies 13, no. 20 (October 10, 2020): 5262. http://dx.doi.org/10.3390/en13205262.

Full text

Abstract:

Turnouts are key parts of rail roads and are exposed to adverse weather conditions such as snowfall, snow drifts, low temperatures, or sleet. Effective protection assures good turnout function and contributes to rail traffic efficiency and safety. Presently, resistance heating (RH) is the most common system of turnout heating in Europe. In this study, we attempted to implement energy-saving induction heating (IH) in order to cut costs of operation and electricity. A turnout heating test stand, including a stock-rail and a switch-rail, was executed in a climatic chamber. Air temperature was constant at the time of heating. Active power received by both the systems was identical for any measurement (450 W). Test results enabled an assessment of switch-rail position and variations of climatic chamber air temperature on growth of turnout temperatures. Effects of heating type on correct lubrication of the slide plate surface were compared. Dynamics of heating variations and their impact on effectiveness of snow or ice removal were defined for both heating systems. Turnout’s readiness for switch-rail shifting and lubrication conditions of turnout’s moving parts were compared. An in-depth comparative analysis of efficiency of RH and IH turnout heating was undertaken in the conclusion.

APA, Harvard, Vancouver, ISO, and other styles

28

Zhu, Hao-Cheng, Chuck Wah Yu, and Shi-Jie Cao. "Ventilation online monitoring and control system from the perspectives of technology application." Indoor and Built Environment 29, no. 4 (October 4, 2019): 587–602. http://dx.doi.org/10.1177/1420326x19878586.

Full text

Abstract:

Dynamic optimal airflow ventilation can have a great impact on the indoor air distribution and pollutant removal to improve the indoor air quality while saving energy. An online monitoring and control ventilation system has been developed and evaluated using fast prediction models and micro-control. An environmental chamber (1.8 m3) was used for the evaluation to monitor the CO2 dispersion under different air change rates and air speed. Specifically, an artificial neural network model based on a low-dimensional linear ventilation model was introduced and validated to provide environmental control and rapid prediction of pollutant concentration distribution in the indoor environment, which can save computing time and significantly enhance energy saving efficiency up to 16–47%. The validation was carried out by comparison with measurement data of the chamber experiment. An induction system was applied to locate and monitor the personnel in the office due to pollution that are generated by people. A ZigBee wireless module would transmit location information of pollutant source (i.e. CO2 generated by occupants) and to determine the optimal ventilation mode based on ventilation assessment to achieve automatic control of indoor air quality to ensure the wellbeing of occupants while saving energy.

APA, Harvard, Vancouver, ISO, and other styles

29

Zhang, Guang, Xiao Guang Yue, Juan Yang, Jing Xi Chen, Zi Qiang Zhao, and Xiao Lan Xie. "Electromagnetic Induction Heating Application in Mining Safety Detection." Advanced Materials Research 722 (July 2013): 528–31. http://dx.doi.org/10.4028/www.scientific.net/amr.722.528.

Full text

Abstract:

From the status and history the of electromagnetic induction heating, the concept of electromagnetic induction heating, formulas and principles are briefly analyzed. There are some overviews of some examples: the furnace based on electromagnetic induction heating; the plastic processing based on electromagnetic induction heating; the temperature control system based on electromagnetic induction heating. Through these examples, the basic situation of domestic electromagnetic induction heating is summarized. Mining engineering safety detection plays a very important role in mining engineering. A mining safety detection model is designed by using electromagnetic induction heating principle for monitoring the load and the air temperature data. This detection reference model can be used for many areas for mining safety.

APA, Harvard, Vancouver, ISO, and other styles

30

Cai, Guoqiang, Yaofei Wang, Qiong Song, and Chen Yang. "RAMS Analysis of Train Air Braking System Based on GO-Bayes Method and Big Data Platform." Complexity 2018 (October 14, 2018): 1–14. http://dx.doi.org/10.1155/2018/5851491.

Full text

Abstract:

The RAMS (reliability, availability, maintainability, and security) of the air braking system is an important indicator to measure the safety performance of the system; it can reduce the life cycle cost (LCC) of the rail transit system. Existing safety analysis methods are limited to the level of relatively simple factual descriptions and statistical induction, failing to provide a comprehensive safety evaluation on the basis of system structure and accumulated data. In this paper, a new method of safety analysis is described for the failure mode of the air braking system, GO-Bayes. This method combines the structural modeling of the GO method with the probabilistic reasoning of Bayes methods, introduces the probability into the analysis process of GO, performs reliability analysis of the air braking system, and builds a big data platform for the air braking system to guide the system maintenance strategy. An automatic train air braking system is taken as an example to verify the usefulness and accuracy of the proposed method. Using ExtendSim software shows the feasibility of the method and its advantages in comparison with fault tree analysis.

APA, Harvard, Vancouver, ISO, and other styles

31

Bu, Wenshao, Xianghui Cheng, Fangzhou He, Yanke Qiao, Haitao Zhang, and Xingyuan Xu. "Inverse system modeling and decoupling control of bearingless induction motor based on air gap flux orientation." International Journal of Applied Electromagnetics and Mechanics 53, no. 3 (February 24, 2017): 567–77. http://dx.doi.org/10.3233/jae-160096.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

OGATA, Nobuyuki, Michinao HIRAMATSU, Hiroshi ENOMOTO, Noboru HIEDA, Hiroyasu MOTOI, and Wataru SATO. "714 Development of The Air Induction System and The Cam-profile of KF2006 in F-SAE." Proceedings of Conference of Hokuriku-Shinetsu Branch 2007.44 (2007): 287–88. http://dx.doi.org/10.1299/jsmehs.2007.44.287.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Hurnik, Maria. "Novel cylindrical induction controller and its application in VAV air conditioning system in an office building." Energy and Buildings 130 (October 2016): 341–49. http://dx.doi.org/10.1016/j.enbuild.2016.08.074.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Sousa Alves, Guilherme, Greg R. Kruger, João Paulo A. R. da Cunha, Bruno C. Vieira, Ryan S. Henry, Andjela Obradovic, and Mica Grujic. "Spray Drift from Dicamba and Glyphosate Applications in a Wind Tunnel." Weed Technology 31, no. 3 (May 29, 2017): 387–95. http://dx.doi.org/10.1017/wet.2017.15.

Full text

Abstract:

With the recent introductions of glyphosate- and dicamba-tolerant crops, such as soybean and cotton, there will be an increase in POST-applied tank-mixtures of these two herbicides. However, few studies have been conducted to evaluate drift from dicamba applications. This study aimed to evaluate the effects of dicamba with and without glyphosate sprayed through standard and air induction flat-fan nozzles on droplet spectrum and drift potential in a low-speed wind tunnel. Two standard (XR and TT) and two air induction (AIXR and TTI) 110015 nozzles were used. The applications were made at 276 kPa pressure in a 2.2 ms−1 wind speed. Herbicide treatments evaluated included dicamba alone at 560 gaeha−1 and dicamba+glyphosate at 560+1,260 gaeha−1. The droplet spectrum was measured using a laser diffraction system. Artificial targets were used as drift collectors, positioned in a wind tunnel from 2 to 12 m downwind from the nozzle. Drift potential was determined using a fluorescent tracer added to solutions, quantified by fluorimetry. Dicamba droplet spectrum and drift depended on the association between herbicide solution and nozzle type. Dicamba alone produced coarser droplets than dicamba+glyphosate when sprayed through air induction nozzles. Drift decreased exponentially as downwind distance increased and it was reduced using air induction nozzles for both herbicide solutions.

APA, Harvard, Vancouver, ISO, and other styles

35

Bu, Wenshao, Panchao Lu, Chunxiao Lu, and Yi Pu. "Independent Inverse System Decoupling Control Strategy of Bearingless Induction Motor." Recent Advances in Electrical & Electronic Engineering (Formerly Recent Patents on Electrical & Electronic Engineering) 13, no. 7 (November 4, 2020): 1001–9. http://dx.doi.org/10.2174/2352096513666200129124104.

Full text

Abstract:

Background: In the existing inverse system decoupling methods of bearingless induction motor, the inverse system model is more complex, and it is not easy to realize the independent control of the magnetic suspension system. In this paper, in order to simplify its inverse system model, an independent inverse system decoupling control strategy is proposed. Methods: Under the conditions of considering the current dynamics of torque windings, the state equations of torque system and those of magnetic suspension system are established, and the independent inverse system model of torque system and that of the magnetic suspension system are deduced. The air gap fluxlinkage of the torque system that is needed in the magnetic suspension system is identified by an independent voltage model. After the independent inverse model of torque system and that of magnetic suspension system are connected in parallel, they are connected in front of the original system of a bearingless induction motor. After this, the torque system is decoupled into two second-order integral subsystems, i.e. a fluxlinkage subsystem and a motor speed subsystem, while the magnetic suspension system is decoupled into another two second-order integral subsystems, i.e. the α- and β-displacement component subsystems. The design of the additional closed-loop controller is achieved through the pole assignment method. Result: The obtained inverse model of the magnetic suspension system is independent of the fluxlinkage orientation mode of torque system, and thus the flexibility of the independent control for the torque system and magnetic suspension system is increased. The simulation results have shown that the system has good static- and dynamic-decoupling control performance. Conclusion: The proposed independent inverse system decoupling control strategy is effective and feasible.

APA, Harvard, Vancouver, ISO, and other styles

36

Hu, Guo Wen, Li Sheng Zhang, Lin Wang, and Yin Jie Wang. "Research on the Measurement and Control Technology of Controllable Alternating Magnetic Field Generator to Magnetized Breed." Applied Mechanics and Materials 303-306 (February 2013): 601–6. http://dx.doi.org/10.4028/www.scientific.net/amm.303-306.601.

Full text

Abstract:

Controlled and alternating induction magnetic field generation device which induces plant seeds to breed on floor space has been developed. The incentive ferrite induction coil is used in the device to produce induced magnetic field. The common AC-DC-AC topology was adopted for the variable frequency power supply, and AC power inverter circuit adopts SPWM inverter frequency modulation and voltage regulation mode, realizing the sinusoidal VVF. In order to improve the conversion efficiency of system electrical energy to magnetic energy, the RLC series resonant circuit is chosen in the circuit of output magnetic field. Measurement and control system using DSP microcomputer measurement and control technology and digital PID control method. The frequency and intensity of inductive magnetic field in the air gap changes as the changes of current intensity in coils. The experimental study of rice seeds shows that test result is obviously better than traditional biological magnetization induced breeding technique of fixed magnetic poles.

APA, Harvard, Vancouver, ISO, and other styles

37

Saini, Supriya, Praveen Vats, Alpesh Kumar Sharma, Koushik Ray, Akpay Sarybaev, and Shashi Bala Singh. "Effect of Altitude and Duration of Stay on Pulmonary Function in Healthy Indian Males." Defence Life Science Journal 3, no. 3 (June 25, 2018): 307. http://dx.doi.org/10.14429/dlsj.3.12404.

Full text

Abstract:

The study was carried out with the objective to investigate the effect of varying altitude and duration of exposure on blood pressure, heart rate and lung function parameters in healthy Indian soldiers after adopting proper acclimatization schedule. For this purpose 17 soldiers of Indian Army, weight and height matched, were studied after obtaining written consent. Recording of Blood pressure (systolic and diastolic), heart rate and lung function variables (FVC, FEV1, FEV1/FVC%, MVV, FEF25-75%, MEF 25%, MEF 50%, MEF 75%, PEF) were measured at basal (290m), 800m, 3200m (day 10 and day 20) and upon de-induction. Our results demonstrate that with increasing altitude FVC declined, FEV1 did not change and due to these changes FEV1/FVC% increased. Expiratory flow rates including MEF 25%, MEF50% MEF 75%, PEF and mean expiratory flow rate (FEF25-75%) increased upon induction to high altitude. This increase may be due to reduction in air density causing less air resistance which accelerates lung emptying. Though the increase upon induction in all the values was transient and returned to baseline values after de-induction. MVV reflecting respiratory muscle function increased significantly upon induction to altitude in our study and returned to basal values upon de-induction. Understanding respiratory system in mountainous regions and its further correlation with other systems pertaining to acclimatization could help in laying step in unveiling mechanism of human high altitude adaptation.

APA, Harvard, Vancouver, ISO, and other styles

38

Alves, Guilherme Sousa, Greg Robert Kruger, and João Paulo Arantes Rodrigues da Cunha. "Spray drift and droplet spectrum from dicamba sprayed alone or mixed with adjuvants using air-induction nozzles." Pesquisa Agropecuária Brasileira 53, no. 6 (June 2018): 693–702. http://dx.doi.org/10.1590/s0100-204x2018000600005.

Full text

Abstract:

Abstract: The objective of this work was to evaluate the spray drift and droplet spectrum of dicamba applied alone or with potential drift-reducing adjuvants, using air-induction flat fan nozzles. Standard (XR and TT) and air-induction (AIXR and TTI) nozzles were evaluated in a wind tunnel. The adjuvants used were polymer, ammonium sulfate, vegetable oil, and phosphatidylcholine. The applications were conducted at 276 kPa pressure and 3.5 m s-1 wind speed. The droplet spectrum was measured using a laser diffraction system. Round strings were used as drift collectors, positioned perpendicularly to the wind direction, at 2, 3, 4, 5, 6, 7, and 12 m from the nozzle. Drift was calculated by quantifying, through fluorimetry, a fluorescent tracer added to each solution at 1 g L-1. Droplet spectrum and dicamba drift depend on the interaction between spray composition and nozzle type. Air-induction nozzles are more recommended for dicamba applications, especially the TTI nozzle. Polymer and ammonium sulfate increase droplet size in all nozzle types, which may reduce drift to nearby crops.

APA, Harvard, Vancouver, ISO, and other styles

39

Kosmodamianskiy, Andrey, Alexander Pugachev, and Nikolay Strekalov. "Control system of temperature of locomotives traction frequency converters." MATEC Web of Conferences 341 (2021): 00061. http://dx.doi.org/10.1051/matecconf/202134100061.

Full text

Abstract:

The features of the control systems of temperature of the traction frequency converters consisted of rectifier, capacitor and voltage source inverter for traction rolling stock are discussed. The induction motor is considered as a load for traction frequency converter. The dependence of the number of thermal cycles from semiconductor junction temperature fluctuations before the failure of the semiconductor device are shown. The topology and operation principle of automatic temperature control system of voltage source inverter semiconductor devices of traction frequency converter are developed and described. The system is based on air forced cooling with the use of fan or blower as an executive regulation device. The main feature of the proposed system is the additional reference of switching frequency that allows to reduce the semiconductor temperature fluctuations. The elements of switching frequency control loop are chosen and evaluated, the recommendations on practical implementations are given. Simulation of automatic temperature control system in Matlab with both references of semiconductor junction temperature and its fluctuation was carried out with all essential nonlinearities of induction motors and semiconductor devices taken into account. Results of simulation are included and discussed.

APA, Harvard, Vancouver, ISO, and other styles

40

Wu, Zhen Yu, Ke Qiao Hu, Zhen Pan, and Xu Dong Hu. "Design and Implementation of Yarn Tension Measurement System during Weft Insertion on Air-Jet Loom." Advanced Materials Research 765-767 (September 2013): 2123–27. http://dx.doi.org/10.4028/www.scientific.net/amr.765-767.2123.

Full text

Abstract:

Yarn tension during weft insertion is one of important factors which affect fabric properties. In air jet loom, many components have an influence on yarn tension, such as clamp, main nozzle, sub nozzle, brake, and the drum. In this paper, a measurement system for yarn tension experiment which based on a 32-bit Cortex-M3 embedded processor was designed and implemented. The system can control components at fixed time interval which is set by a supervisory computer, acquire yarn tension converted by a contacted electromagnetic induction tension sensor, and then transmit tension data to software system by Ethernet module. An experiment is conducted for research character of yarn tension driven by air flow. The experiment results indicate that the nozzle pressure and yarn diameter play an important role in yarn tension during weft insertion on air-jet loom. Besides, the delay of magnetic value is also considered under different nozzle pressure.

APA, Harvard, Vancouver, ISO, and other styles

41

He, Ming, Qingwei Wang, Lijia Zhao, Xiaoming Liu, and Qiang Wang. "Analysis of Air-Mist Cooling Effect for Coil in the Electromagnetic Induction Controlled Automated Steel Teeming System." ISIJ International 61, no. 9 (September 15, 2021): 2457–63. http://dx.doi.org/10.2355/isijinternational.isijint-2020-681.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Bolovin, Eugene, Alexander Glazyrin, and Vladimir Polichshuk. "Induction Motor Drive Parameters Identification Applying Difference Schemes." Applied Mechanics and Materials 698 (December 2014): 65–68. http://dx.doi.org/10.4028/www.scientific.net/amm.698.65.

Full text

Abstract:

The authors have developed and tested by mathematical modeling the method of the induction motor parameters identification based on the difference schemes. When obtaining a difference equation system, the total delay time was taken to be equal to a quarter of a stator voltage period. The nonlinear predictive filtration was used to determine the expected value. The authors determined the estimators of rotor active resistance reduced to the stator; the rotor winding equivalent inductance; the stator winding equivalent inductance, the resulting inductance conditioned by the magnetic flux in the machine air gap; equivalent time constant for rotor circuit in the squirrel cage induction motor. The root mean square values of relative errors of parameters estimations total less than 4 %.

APA, Harvard, Vancouver, ISO, and other styles

43

Hahad, Omar, Jos Lelieveld, Frank Birklein, Klaus Lieb, Andreas Daiber, and Thomas Münzel. "Ambient Air Pollution Increases the Risk of Cerebrovascular and Neuropsychiatric Disorders through Induction of Inflammation and Oxidative Stress." International Journal of Molecular Sciences 21, no. 12 (June 17, 2020): 4306. http://dx.doi.org/10.3390/ijms21124306.

Full text

Abstract:

Exposure to ambient air pollution is a well-established determinant of health and disease. The Lancet Commission on pollution and health concludes that air pollution is the leading environmental cause of global disease and premature death. Indeed, there is a growing body of evidence that links air pollution not only to adverse cardiorespiratory effects but also to increased risk of cerebrovascular and neuropsychiatric disorders. Despite being a relatively new area of investigation, overall, there is mounting recent evidence showing that exposure to multiple air pollutants, in particular to fine particles, may affect the central nervous system (CNS) and brain health, thereby contributing to increased risk of stroke, dementia, Parkinson’s disease, cognitive dysfunction, neurodevelopmental disorders, depression and other related conditions. The underlying molecular mechanisms of susceptibility and disease remain largely elusive. However, emerging evidence suggests inflammation and oxidative stress to be crucial factors in the pathogenesis of air pollution-induced disorders, driven by the enhanced production of proinflammatory mediators and reactive oxygen species in response to exposure to various air pollutants. From a public health perspective, mitigation measures are urgent to reduce the burden of disease and premature mortality from ambient air pollution.

APA, Harvard, Vancouver, ISO, and other styles

44

Dwiyanto Tobi, Markus, and Vina N. Van Harling. "Wireless electric energy transmission system and its recording system using PZEM004T and NRF24L01 module." Indonesian Journal of Electrical Engineering and Computer Science 21, no. 3 (March 10, 2021): 1372. http://dx.doi.org/10.11591/ijeecs.v21.i3.pp1372-1380.

Full text

Abstract:

Electrical energy can not be separated from the name kWh Meter, a tool used to measure and record the amount of electrical energy usage has a shortage of kWh meters can not be monitored remotely how much energy is used, so it is rather inconvenient for PLN officials to check the use of electricity for postpaid customers. This research was conducted to design a prototype of a wireless electrical energy transmission system and design a wireless electrical energy recording system using the NRF24L01 wireless transmitter module and the PZEM004T kWh meter module. The design in this study uses the principle of electromagnetic induction to transfer electrical energy at close range, while to transmit data, the authors use the NRF24L01 module. Besides, the authors use the PZEM004T module to measure various magnitudes. Based on the results of observations and measurements of the design of the tool, the authors found that the transmission of electrical energy using electromagnetic induction is not effective for longer distances because the energy lost in the air is getting bigger. So this technology needs to be further investigated. Besides, the measurement of electrical quantities using the PZEM module has a small difference (under 2%) with measurements using a multimeter, so it can be said that the measurement with the PZEM004T module is effective.

APA, Harvard, Vancouver, ISO, and other styles

45

Napole, Cristian, Oscar Barambones, Mohamed Derbeli, José Antonio Cortajarena, Isidro Calvo, Patxi Alkorta, and Pablo Fernandez Bustamante. "Double Fed Induction Generator Control Design Based on a Fuzzy Logic Controller for an Oscillating Water Column System." Energies 14, no. 12 (June 12, 2021): 3499. http://dx.doi.org/10.3390/en14123499.

Full text

Abstract:

Oscillating water column (OWC) systems are water power generation plants that transform wave kinetic energy into electrical energy by a surrounded air column in a chamber that changes its pressure through the waves motion. The chamber pressure output spins a Wells turbine that is linked to a doubly fed induction generator (DFIG), flexible devices that adjust the turbine speed to increase the efficiency. However, there are different nonlinearities associated with these systems such as weather conditions, uncertainties, and turbine stalling phenomenon. In this research, a fuzzy logic controller (FLC) combined with an airflow reference generator (ARG) was designed and validated in a simulation environment to display the efficiency enhancement of an OWC system by the regulation of the turbine speed. Results show that the proposed framework not only increased the system output power, but the stalling is also avoided under different pressure profiles.

APA, Harvard, Vancouver, ISO, and other styles

46

Jin, Xing, Chang Hong Jiang, and Xiang Guang Li. "A Study on Variable Frequency Control of Precooling Pump Motors." Applied Mechanics and Materials 325-326 (June 2013): 1233–36. http://dx.doi.org/10.4028/www.scientific.net/amm.325-326.1233.

Full text

Abstract:

Based on the energy-saving principle of variable frequency and energy adjustment, problems on application of the optimization table method of voltage vector in AC frequency control of motor speed adjusting are mainly emphasized by analysis on precooling system of air separation in this paper. With the help of Matlab/Simulink simulation software, the simulation model of the control system of the AC induction motor is built, and a method of frequency and speed adjusting control of the motor based on dsPIC is put forward. Furthermore, this technology is applied in the precooling pump system of air separation, and a full digital SPWM variable frequency and speed adjusting system with low energy consumption, high efficiency and good dynamic is constructed.

APA, Harvard, Vancouver, ISO, and other styles

47

Kotsur, I. M., A. V. Hurazda, B. A. Dolia, and L. E. Shestov. "An energy efficient electric drive of air units." Electrical Engineering and Power Engineering, no. 1 (March 31, 2021): 18–25. http://dx.doi.org/10.15588/1607-6761-2021-1-2.

Full text

Abstract:

Purpose. Improving the efficiency and energy performance of an asynchronous electric drive for stationary fan’s units of the main ventilation line of mines. Methodology. The research was carried out using the methods of the theory of electrical circuits, mathematical physics, simulation, interpolation and approximation Findings. The research of electromagnetic and energy processes in the asynchronous electric drive system with pulse control at a fan load, taking into account the variable aerodynamic parameters of the main ventilation line of mines. An electric drive system is able to respond with high accuracy and reliability to changes in the aerodynamic parameters of the main ventilation line of mines has been proven. This will also increase the power factor of the electric drive at a fan load up 0.8 to 0.93 p.u., and the efficiency up 92.5% to 94.5%, when regulating in the range of the operating slip of the rotor of the drive fan motor = 0.5 ÷, which, respectively, is on average up 0,25% to 40 higher in comparison with systems of an unregulated electric drive. Recommendations has been developed for the design and rational selection of the rated fan capacity for the main ventilation line to advance the best energy efficiency level of the electric drive. Originality. The research of electro-mechanical, electro-energy power and aerodynamic processes in the dynamic modes of the fan electric drive was carried out. The fan-loaded "induction motor-converter" system has been proven to be self-regulating. It is able to respond with high accuracy and reliability even at low switching frequencies of the power chopper to any changes of the aerodynamic parameters of the main ventilation line of mines. Practical value. Recommendations has been developed for the design and rational selection of the rated fan capacity for the main ventilation line to advance the best energy efficiency level of the electric drive.

APA, Harvard, Vancouver, ISO, and other styles

48

Catania, A. E., and A. Mittica. "Induction System Effects on Small-Scale Turbulence in a High-Speed Diesel Engine." Journal of Engineering for Gas Turbines and Power 109, no. 4 (October 1, 1987): 491–502. http://dx.doi.org/10.1115/1.3240069.

Full text

Abstract:

The influence of the induction system on small-scale turbulence in a high-speed, automotive diesel engine was investigated under variable swirl conditions. The induction system was made up of two equiverse swirl tangential ducts, and valves of the same size and lift. Variable swirl conditions were obtained by keeping one of the inlet valves either closed or functioning, and by changing engine speed. The investigation was carried out for two induction system configurations: with both ducts operating and with only one of them operating. Two different engine speeds were considered, one relatively low (1600 rpm) and the other quite high (3000 rpm), the latter being the highest speed at which engine turbulence has been measured up to now. Cycle-resolved hot-wire anemometry measurements of air velocity were performed throughout the induction and compression strokes, under motored conditions, along a radial direction at an axial level that was virtually in the middle of the combustion chamber at top dead center. The velocity data were analyzed using the nonstationary time-averaging procedure previously developed by the authors. Correlation and spectral analysis of the small-scale turbulence so determined was also performed. The turbulence intensity and its degree of nonhomogeneity and anisotropy were sensibly influenced by the variable swirl conditions, depending on both the intake system configuration and engine speed; they generally showed an increase with increasing swirl intensity, at the end of the compression stroke. A similar trend was observed in the cyclic fluctuation of both the mean velocity and turbulence intensity. The micro time scale of turbulence was found to be almost uniform during induction and compression, showing a slight dependence on the measurement point and on the intake system configuration, but a more sensible dependence on the engine speed. No effect of the cylinder wall on turbulence was apparent.

APA, Harvard, Vancouver, ISO, and other styles

49

Natesan, Sivaramakrishnan, Karuna Kalita, and Venkatesu Samala. "Numerical and Experimental Investigation of Bridge Currents of an Induction Machine Equipped with Bridge Conﬁgured Winding." International Journal of Electrical and Computer Engineering (IJECE) 5, no. 6 (December 1, 2015): 1262. http://dx.doi.org/10.11591/ijece.v5i6.pp1262-1274.

Full text

Abstract:

An eccentric rotor motion imbalances the magnetic ﬁeld distribution in the air-gap region. Due to this uneven ﬂux density distribution, a net radial force called Unbalanced Magnetic Pull (UMP) is in action towards the shortest air-gap. This UMP can degrade the machine’s performance. UMP can be controlled by a special kind of winding called Bridge Conﬁgured Winding (BCW). The BCW winding is a single set of winding which is used to produce the torque as well as the controllable force. The main contribution of this paper is to inspect the ﬂow of bridge currents in the bridges when the machine is having rotor eccentricity or unbalance. The bridge currents in the presence of rotor eccentricity with the stator of an Induction machine model has been analyzed by using an Electromagnetic Finite Element (FE) solver called Opera 2D/RM solver (Rotation Motion Analysis). The bridge currents have been measured for two different cases., (i) Induction machine model with zero eccentricity, (ii) Induction machine model with 10% static eccentricity of the air gap. Experimental results are presented for the validation of Opera 2D/RM results. A modiﬁed 37kW Induction machine has been used for this study. A known mass unbalance is introduced in the perforated disc in order to create the unbalance in the system purposefully. The bridge currents have been measured and compared with and without unbalance present in the system. The comparison of measured bridge currents for all the cases are given in the frequency domain.

APA, Harvard, Vancouver, ISO, and other styles

50

Emmerechts, J., and M. F. Hoylaerts. "The effect of air pollution on haemostasis." Hämostaseologie 32, no. 01 (2012): 5–13. http://dx.doi.org/10.5482/ha-1179.

Full text

Abstract:

SummaryAmbient environmental air pollutants include gaseous and particulate components. In polluted air, especially particulate matter seems responsible for cardiovascular complications: It consists of a heterogeneous mixture of solid and liquid particles with different diameters ranging from large thoracic to ultrafine particles, with a diameter < 100 nm. Ultrafines can penetrate deeply into the lung to deposit in the alveoli. Cardiovascular manifestations result both from short-term and long-term exposure and have been linked to interference with the autonomic nervous system, direct translocation into the systemic circulation, pulmonary inflammation and oxidative stress. Thrombotic complications associated with air pollution comprise arterial and probably venous thrombogenicity.This review describes the existing epidemiological and experimental evidence to explain the rapid induction of myocardial infarction within 1–2 hours after exposure to polluted air and advances several explanations as to why more chronic exposure will lead to enhanced venous thrombogenicity. Mechanisms such as platelet activation, endothelial dysfunction, coagulation factor changes and microvesicle production are discussed.

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Air Induction System'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles