What are the Advantages and Disadvantages of Plastic Roads? ....etc

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fire alarm using thermistor
advantages and disadvantages
The IC1 (NE555) is configured as a free running oscillator at audio frequency. The transistors T1 and T2 drive IC1. The output (pin 3) of IC1 is couples to base of transistor T3 (SL100), which drives the speaker to generate alarm sound. The frequency of NE555 depends on the values of resistances R5 and R6 and capacitance C2. When thermistor becomes hot, it gives a low-resistance path for the positive voltage to the base of transistor T1 through diode D1 and resistance R2. Capacitor C1 ....etc

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digital clock using 8051 advantages and disadvantages

Digital clock displays the time using numbers. This circuit is used in many applications like cars, railway stations, houses, offices, etc. in order to provide accurate time and date. In this type of applications, normally we use RTC (Real Time Clock) ICs to display the time and date accurately. This circuit displays the time on LCD. For this clock, we can set the time at any instant. Here the clock works in 24 hour mode and the RTC chip is configured by programming 8051 controller.

Circui ....etc

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In the past, hardwired alarm systems are the only choice for customers who need security equipment to protect premises. Today, with rapid technology evolve, many users shift from hardwired alarm to wireless alarm. It seems home security industry is moving from hardwired to wireless, but as one of mature and stable alarm equipment, some users still favor the hard wired alarm system. In this article, we will show you some basic information about advantages and disadvantages of hardwired alarm systems.

What s hardwired alarm system ?

Alarm ....etc

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Plastic is a material consisting of any of a wide range of synthetic or semi-synthetic organic compounds that are malleable and can be molded into solid objects. Plastics are typically organic polymers of high molecular mass, but they often contain other substances. They are usually synthetic, most commonly derived from petrochemicals, but many are partially natural. Plasticity is the general property of all materials that are able to irreversibly deform without breaking, but this occurs to such a degree with this class of moldable polymers tha ....etc

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stabilisation of clay using lime and pond ash

ABSTRACT

Infrastructure projects such as highways, railways, water reservoirs, reclamation etc. requires earth material in very large quantity. In urban areas, borrow earth is not easily available which has to be hauled from a long distance. Quite often, large areas are covered with highly plastic and expansive soil, which is not suitable for such purpose. Extensive laboratory / field trials have been carried out by various researchers and have shown promising results for application of such expan ....etc

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stabilisation of black cotton soil using bioenzymes for pavement construction ppt

Abstract

In developing countries like India the most important requirement of any project after performance criteria is its economical feasibility and serviceability criteria. The conventional methods are time consuming and are not economically feasible. Hence there is a need to discover the other possible ways to satisfy the performance as well as economical criteria. In this paper, popularly available bio-enzymes and their effect on engineering properties of s ....etc

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Soil stabilization

Soil stabilization a general term for any physical, chemical, biological, or combined method of changing a natural soil to meet an engineering purpose. Improvements include increasing the weight bearing capabilities and performance of in-situ subsoils, sands, and other waste materials in order to strengthen road surfaces.

The prime objective of soil stabilization is to improve the California Bearing Ratio of in-situ soils by 4 to 6 times. The other prime objective of soil stabilization is to improve on-site materials to ....etc

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plastic money marathi information advantages and disadvantages

Technology has changed the way we deal with money giving us more convenience and easy access to funds from anywhere. It all started with a simple credit card that allowed you to make purchases today and pay later.Further, technological advancements lead to a new trend where most banks gave you one ATM card or debit card which can be used for withdrawing money as well as for making purchases or payments offline as ....etc

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Active Gate Control for Current Balancing of
Parallel-Connected IGBT Modules
in Solid-State Modulators

Dominik Bortis, Student Member, IEE, Juergen Biela, Member, IEE, and Johann W. Kolar, Senior Member, IEE


Abstract

In modern pulsed power systems, often, fast solidstate
switches likeMOSFETs and insulated gate bipolar transistor
(IGBT) modules are used to generate short high power pulses. In
order to increase the pulsed power, solid-state switches have to be
connected in series or in parallel. ....etc

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