AUTOMATIC SPEED CONTROLLER FOR FANS WITH ON/OFF CONTROL BY LIGHT

ABSTRACT
The circuit designed here lets us turn ON/OFF a fan or any device by just directing a torch light or any other light towards its light-dependent resistor. In short we are tiying to develop a remote control for turning ON/OFF an electronic device.
During summer nights, the temperature is initially quite high. As time passes, the temperature starts dropping. Also, after a person falls asleep, the metabolic rate of one's body decreases. Thus, init ....etc

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I want some more details on the above topic including the powerpoint presentation(PPT).There is no ppt available on the internet about this vertical take-off and landing of aircraft.So i request you to send me the details.Thank you. ....etc

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plz send me d seminar on vertical take off. i will b very thankful 2 u ....etc

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The recognition of off-line unconstrained handwriting is one of the most challenging and interesting problems in Optical Character Recognition (OCR). Although many research have been done in this field for about 40 years, a number of problems are still open to us. In this seminars, an integrated recognition system for off-line unconstrained handwriting is proposed. The proposed system consists of seven main modules: skew angle correction, printed-handwritten text discrimination, line segmentation, slant correction, word segmentation, character ....etc

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CHAPTER 1: INTRODUCTION
Here is an inexpensive auto cut-off circuit, which is fabricated using transistor and other discrete components. It can be used to protect loads such as refrigerator, T.V., and VCR from undesirable over and under line voltages, as well as surges caused due to sudden failure/resumption of main power supply. This circuit can be used directly as a standalone circuit between the mains supply and the load, or it may be inserted between an existing automatic/manual stabilizer and the load.
The over/u ....etc

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pulse generators usually allow control of the pulse repetition rate (frequency), pulse width, delay with respect to an internal or external trigger and the high- and low-voltage levels of the pulses.


COMPONENTS REQUIRED
i. Transformer 220/9V 1
ii. Diode PN 4
iii. Capacitor 1000µf/15V 1
iv. Regulator LM 7805 1
v. Capacitor 100 µf 2
vi. Capacitor 0.01 2
vi. Variable Resistance (0-1M?? 2
vii IC 555 2
viii LED 2
ix. IC Base 2
x. Resistance 330
xi. Connecting
Wires 3 m
xii. Multipurpose PCB 2
xiii. Accessories (C ....etc

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Vertical Take “ off and Landing
INTRODUCTION
Twenty years after ever jet flight took place, vertical takeoff and landing (VTOL) emerged as a concept, which was soon to be successfully implemented. Dr A.A Griffith, in 1941 who was then the chief engineer of Rolls Royce ltd. put forward this idea in his paper to the aeronautical research council. He proposed the idea of using small lift engines for lift only and not for normal flight. He claimed that there was great advantage in using a wing configuration and prop ....etc

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The recognition of off-line unconstrained handwriting is one of the most challenging and interesting problems in Optical Character Recognition (OCR). Although many research have been done in this field for about 40 years, a number of problems are still open to us. In this seminars, an integrated recognition system for off-line unconstrained handwriting is proposed. The proposed system consists of seven main modules: skew angle correction, printed-handwritten text discrimination, line segmentation, slant correction, word segmentation, character ....etc

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Pile driving at large construction sites produces formidable noise. Marine pile driving similarly can produce high sound pressures underwater”but these can be lethal to fish and can harass marine mammals, including those protected by federal law. This problem has contributed to costly construction delays on major bridge projects. To protect marine life, engineers have designed air bubble curtains to reduce underwater sounds. Air provides an effective barrier to sound propagating through water, because of the difference in density betwee ....etc

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Abstruct-
Analysis, design, and implementation of the space vector modulated three-phase to three-phase matrix converter with input power factor correction are presented. The majority of published research results on the matrix converter control is given an overview, and the one, which employs sheous output-voltage and input-current space vector modulation, is systematically reviewed. The modulation algorithm is theoretically derived from the desired average transfer functions, using the indirect transfer function approach. ....etc

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