starting and control of slip ring induction motors

... made in the field of power electronics and control technology, the applications of induction motors to electrical drives have increased The main advantages of cage induction motors are their simple ... light weight and large continuous and peak torques are required Permanent magnet ac motors combine some of the desirable advantages of conventional induction and synchronous motors and deserve ... option than induction motors The improvements made in the field of semiconductor drives mean that the control of PM motors has become easier and cost effective with the possibility of operating...

Ngày tải lên: 15/09/2015, 22:06

... 3-phase induction motors Additional on-chip resources, like multiple timers and ADC, allow users to easily implement safety and control features, such as current and voltage protection and configurable ... acceleration and deceleration KEY_CHECK Checks the status of Run/Stop and Fwd/Rev keys and acts accordingly CHECK_FAULT Responds to setting of RBIF This routine responds to the output status of the ... control of 3-phase induction motors A low-cost VF solution can be implemented using the PIC16F7X7 family of devices With three dedicated PWM modules implemented in hardware, it is ideal for controlling...

Ngày tải lên: 11/01/2016, 14:35

... aspects of the wheel slip problem for WMRs with PCWs: slip modelling, slip detection and slip control By removing the assumption of “pure rolling without slipping”, we model WMRs with slip for ... voltage control mode of DC motors instead of current control mode to reduce slip [86, 18] The main idea of this method is to make use of the fast torque response characteristic of voltage controlled ... in WMRs and their effects on wheel slip [6] We further analyzed the relation between 17 internal force and wheel slip of WMRs and provided experimental results of reducing wheel slip by controlling...

Ngày tải lên: 14/09/2015, 08:43

... and Director Professor Michael A Johnson, Professor of Control Systems and Deputy Director Industrial Control Centre, Department of Electronic and Electrical Engineering, University of Strathclyde, ... Concepts and Designs K.F Man, K.S Tang and S Kwong Neural Networks for Modelling and Control of Dynamic Systems M Nørgaard, O Ravn, N.K Poulsen and L.K Hansen Modelling and Control of Robot Manipulators ... Nonlinear Control Systems I.-II (Communication and Control Engineering Series), Springer A.J van der Schaft (1999) L2-Gain and Passivity Techniques in Nonlinear Control (Communication and Control...

Ngày tải lên: 01/01/2014, 18:38

... development of an on-line UV florescent monitor/controller This unique tracer and control method allows automatic monitoring and control of inhibitor dosage and is currently marketed as their “TRASAR” ... Control of cooling water inhibitor dosage is one of the critical issues in achieving good results as to control of scale, corrosion and deposition; minimization of water management ... ProChemTech to devise and commercialize an on-line spectrophotometer based monitor and controller to control feed of traced inhibitors After review of the technology in the hand held spectrophotometers...

Ngày tải lên: 16/01/2014, 22:20

... 9.2 Conservation of Energy and the First Law of Thermodynamics 9.3 Nonconservation of Entropy and the Second Law of Thermodynamics 9.4 Nonconservation of Ectropy 9.5 Semistability of Discrete-Time ... system (2.64) and (2.65) with respect to xI uniformly in xII0 The remainder of the proof involves similar arguments as given above and as in the proof of parts ii) v) of Theorem 2.3 and, hence, ... admiration, and love Throughout the odyssey of her life her devotion, sacrice, and agape were unconditional, her strength, courage, and commitment unwavering, and her wisdom, intelligence, and pansophy...

Ngày tải lên: 12/02/2014, 16:20

Ngày tải lên: 13/02/2014, 08:20

... trials and case -control studies of BCG Vol 45 / No RR-4 MMWR vaccination These developments have prompted a re-evaluation of the role of BCG vaccination in the prevention and control of TB in ... >70% in most of the outbreaks TB Prevention and Control in the United States The fundamental strategies for the prevention and control of TB include: • Early detection and treatment of patients ... Disease Control and Prevention The role of BCG vaccine in the prevention and control of tuberculosis in the United States: a joint statement by the Advisory Council for the Elimination of Tuberculosis...

Ngày tải lên: 15/02/2014, 13:20

... Vehicular and noise pollution control, Prevention and control of pollution in small scale industries, augmentation of existing air and water quality monitoring, network monitoring of updating of Action ... inventorization of air and water pollution sources, existing level of control technologies, application of air quality models (ISCST3) and concepts of zone of initial dilution and mixing zones in respect of ... control of noise, a workshop was organized at West Bengal Pollution Control Board on 4th and 5th December, 2002 to train the officials of State Pollution Control Boards and the officials of Police...

Ngày tải lên: 17/02/2014, 10:20

... To understand some of the challenges facing China in the implementation and enforcement of its environmental laws, it is important to first understand the Chinese system of government and the dynamics ... purpose of protecting and improving People’s [sic] environment and the ecological environment, preventing and controlling pollution and other public hazards, safeguarding human health and facilitating ... variety of rules and regulations Nationally, these include the Implementing Rules on the Law on the Prevention and Control of Water Pollution36 and the Interim Measures on the Management of Water...

Ngày tải lên: 18/02/2014, 04:20

... COMMUNICABLE DISEASE CONTROL AND MANAGEMENT Control and Management of Exposures and Outbreaks Reports to Local/State Health Departments Notification of Parents/Guardians and Childcare or School ... Genetics and Healthy Childhood Marge Cole, RN, MSN, FASHA Bureau of WIC and Nutrition Services Kathy Mertzlufft Section for Disease Control and Environmental Epidemiology Kristi Campbell Office of ... both staff and parents/guardians on numerous topics See Table of Contents for location of specific information This document replaces all previous versions of the “Prevention and Control of Communicable...

Ngày tải lên: 05/03/2014, 10:20

... vehicles X is in the standard direction of motion, x and z are in the plane of vehicle symmetry, and y completes a righthanded set of coordinates The origin at the lower outside of the body alleviates ... of system identification and adaptive control The sense of vision should yield sufficient information about the near and farther environment to decide when state control is not so important and ... exchange for the need of fast viewing direction control and at the expense of delay times required to perform these gaze changes Figure 1.5 gives an impression of the fields of view of this trifocal...

Ngày tải lên: 05/03/2014, 15:20

... support of the Division of Viral Hepatitis and Division of Cancer Prevention and Control of the Centers for Disease Control and Prevention, the Department of Health and Human Services Office of Minority ... cirrhosis and cancer, the extent of ongoing risk behaviors, and the impact of HIV coinfection and other cofactors Assess the role of state and local disease registries in the delivery of prevention and ... not-for-profit coalition of public, private, and voluntary organizations; the Department of Health and Human Services Office of Minority Health; and VA sought guidance from the Institute of Medicine...

Ngày tải lên: 06/03/2014, 01:20

... support of the Division of Viral Hepatitis and Division of Cancer Prevention and Control of the Centers for Disease Control and Prevention, the Department of Health and Human Services Office of Minority ... Academy of Sciences and the Department of Health and Human Services (with support from the Centers for Disease Control and Prevention, the Office of Minority Health, and the Department of Veterans ... prevention and control of hepatitis B and C / Heather M Colvin and Abigail E Mitchell, editors ; Committee on the Prevention and Control of Viral Hepatitis Infections, Board on Population Health and...

Ngày tải lên: 06/03/2014, 01:20

... prevention and control of noncommunicable diseases A Develop and implement a comprehensive policy and plan for the prevention and control of major noncommunicable diseases, and for the reduction of modifiable ... monitoring of the impact of poverty and other indicators of socioeconomic disparity on the distribution of risk factors • the assessment of national capacity for the prevention and control of noncommunicable ... involvement of existing regional and global initiatives in the implementation and monitoring of the global strategy for the prevention and control of noncommunicable diseases, and of related strategies...

Ngày tải lên: 07/03/2014, 04:20

... conquest of the Canaries at the end of the fourteenth century and of Teneriffe and other islands in the fifteenth led to the bringing of many of their natives as slaves to Castille and the neighboring ... for each leg of the voyage, and for leakage of ten per cent of the rum and five per cent of the molasses, and after charging off the whole cost of the ship's outfit and one-third of her original ... thousand negroes of all sorts, there were about eighteen thousand white men capable of bearing arms; and in the little island's area of 166 square miles there were nearly ten thousand separate landholdings...

Ngày tải lên: 08/03/2014, 00:20

... elevation of NADH/NAD+ and acetyl-CoA/CoA ratios The rise in these ratios is sensed by the rapid and reversible E3 and E2 reactions which act to increase the proportion of the lipoyl groups of E2 and ... Surface residues of the L2 domain of E2 that are required for activating PDK3 and PDP1 Panels A and B show opposing sides of space-filled models of the human L2 domain The position of Lys173 (lipoylated ... NADH/NAD+ ratio of 0.1 and acetyl-CoA/CoA ratio of 0.2 The most responsive human kinase isoform is PDK2 [17,18] The greater extended reach of the reduced and acetylated lipoyl group over that of the oxidized...

Ngày tải lên: 17/03/2014, 09:20

... Maryland Randall R Mayer Chief, Bureau of HIV, STD, and Hepatitis, Iowa Department of Public Health, Des Moines, Iowa Margaret L Brandeau Professor, Department of Management Science and Engineering, ... Committee on the Prevention and Control of Viral Hepatitis Infections R Palmer Beasley (Chair) Ashbel Smith Professor and Dean Emeritus, University of Texas, School of Public Health, Houston, ... five core components: outreach and awareness, prevention of new infections, identification of infected people, social and peer support, and medical management of chronically infected people ...

Ngày tải lên: 22/03/2014, 17:20

... field of wastewater reuse and for control of water pollution: Water quality management and control of water pollution Promote and assist in the modernization of policies, regulations, laws and ... technique, and poor management of human, facility and financial resources Efficiency also suffers in many countries because of the overlapping and often redundant mandates of a variety of agencies ... management and control of water pollution Keynote papers Water quality management and control of water pollution Water quality management in Asia and the Pacific ABSTRACT In its recent examination of...

Ngày tải lên: 23/03/2014, 00:20

... washing hands and feet feet, changing footwear and outer clothes, vehicles kept off the farm p Barriers in descending order of efficacy Locks + Chains Prevent unauthorized people from entering into ... risking the transmission of diseases Screened walls and windows fishnet – in use in Thailand Prevent contact of poultry inside the chicken house with wild and domestic animals and birds from the outside ... cleaning before entering into the farm:  vehicles and equipment (syringes, de-beakers, egg trays)  cloths and footwear  workers and visitors hands and feet You should ensure regular cleaning at...

Ngày tải lên: 23/03/2014, 21:20