Robots are needed to carry out a variety of jobs in different industries.  This article mentions several advantages of robotics. The use of robots is becoming common very fast. There probably isn't any sector that does not

use robots for carrying out technical jobs. Robots nowadays are being manufactured with most advanced technology and features. They can perform accurate, flawless work in a short time. Robots have many advantages, which contribute to different factors like quality, safety, time, accuracy and more.

Robotics In Manufacturing Industry

The use of robots in industries is become a necessity nowadays as products in large quantity are to be manufactured and in a very short time. Robots help forming a product in most precise manner that is high quality. Big industries use robots that work 24 hours a day. These robots can do the work of over hundred human workers at a time.

Electronic and car manufacturing companies also make use of robots. They use robots in assembling and testing procedures that would be time consuming and difficult to carry out by human workers. Robotic arms are an example of such technology. Robotic arm may also be used for painting and welding jobs.

Healthcare and Medical Robotics

Robots have many benefits in healthcare, surgical and medical industries.  Robots are used both for drugs carrying, manufacturing medicines or carrying out several simple tasks in certain surgeries. Robots do not perform the whole surgery but assist doctors, surgeons to perform their task easily, accurately and in a shorter time. Robots can also be used to perform whole surgery. It is called as a robotic surgery.

Robotics in Household

Robots are being manufactured that can perform daily life house duties. Robots can be used in homes for cleaning floors with vacuum cleaners, cleaning pools, etc. Robots can be programmed to do a certain task. More sophisticated robots are being manufactured, which will be able to perform harder household duties. With the fast research and development in the field of robotics, it is expected that the use of robotics in houses will become very common. Scientists are working on robots so that they can become friendlier to homes and families and provide protection and care.

Robots in a few years time may provide give benefits that at this time we can not imagine of. The advantages of robots are surely predicted to grow in many other fields.

These were some advantages of robotics.

Also read:  Applications of Robots in Industry

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We have become very much dependent on fossils for obtaining energy to meet our everyday's energy needs. How long can these fossils remain and survive to serve our needs? Is renewable energy not the perfect alternative to fossil energy? 

Worldwide Energy Requirements

People and today's scientists seem to have a lot of knowledge and enthusiasm about the growth and increased production of our worldwide energy requirements from alternative energy sources. We have alternative energy sources available with us in abundance in form of wind, solar and water. These are conventional sources of alternative energy that are becoming very common in use. The everyday research, development and increased enthusiasm that everyone has today for the alternative energy has already created a feel of complacence that our future energy needs

In our global society, alternative energy is an interesting concept, which simply means energy that is extracted from sources other than the usual and primary energy supply such as oil, coal and natural gas. At this age, we all very heavily depend on these three kinds of fossil fuel. We heavily rely on fossil fuel as the principal source of energy for heating, transportation and other necessities. would easily be met.

Renewable Energy

Even though, a lot of progress has been made and is still being made for the promotion and advancement of renewable energy, it is providing only seven percent of the world's energy production (Source: Energy Information Agency). On the other hand, the fossil fuels, along with nuclear energy (provides six percent of the world's energy supplies) are providing 94% of the world's energy resources. It is not likely that nuclear energy will become a major source of world energy in the future. It is because of public insistency and the dangers associated with letting loose the power of the atom. Despite that, many nations see its huge potential and are pressurizing for the further promotion of nuclear energy.

Fossil Fuels

While fossil fuels are capable of fulfilling our daily life needs very efficiently, there is also a problem with them, that is, the fossil fuels are non-renewable and that the available amount of them are decreasing very fast. The bitter truth is that one day; this limited available fuel will be depleted.

Fossil fuels are formed from animals and plants that existed billions of years ago and became buried deep below the earth's surface where their remains conjointly transmuted into the combustible materials we use today for fuel. The earliest fossil fuel remains are estimated to be 500 millions years old, this is supposedly when the animals and birds first appeared on Earth. The later fossil deposits began forming about five million years ago. The fact is that with the rate the fossil fuel is being consumed today, their formation can not happen quick enough to satisfy our today's and future demands.

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Hydraulic cement is widely being used in construction industry as a binder and has an efficient performance for repair of leaks. It is useful for applications exposed to water. The hydraulic cement is designed so that hydraulic cement properties are suitable for modern construction. 

Development Of Hydraulic Cement

Cement has been in use since the time construction works commenced, though its form and characteristics have been enhanced with the advancement in technology of all disciplines. Hydraulic cement signifies any cement that may establish and solidify when combined with water. Most of the construction cements being used are hydraulic. Hydraulic cement is one of the important inventions in the line of the Industrial Revolution to perform the changing requirements of the construction business. The hydraulic cement properties are useful for enduring the building finish during the wet climate, and providing hydraulic mortars for the harbor construction. Strong concrete is essentially required in the modern world for the construction of huge tall structures that have to endure massive loads. Mortar mixer is used to provide a homogeneous aggregate mixture.

Types Of Cement

Several kinds of cements can be produced by changing the ingredients and modifying the production processes. However, the cements that are commonly used are limited. The characteristics of cements can be altered by blending different quantities of clinker, gypsum, and some other additives. Cements that are commonly being used in the construction industry are categorized as hydraulic and non-hydraulic. These cements have different physical and chemical properties. There are numerous different types of hydraulic cements, and the most common being Portland cement. Other type of Hydraulic cement is Blended.

Hydraulic Cement Characteristics

Major application of hydraulic cement is for the manufacture of concrete and mortar. It bonds the aggregate to produce a building material that is strong, durable, and can withstand the environmental effects. After hardening is completed, the hydraulic cement will maintain its strength and hardness even below water. The majority of the construction cements being used in construction industry today are hydraulic. Non-hydraulic cement is mainly produced by calcium hydroxide, including materials like lime and gypsum that is kept under dry conditions to attain strength.

Non-Hydraulic Cement

Non-hydraulic cement was the initial cement that was conceived by the scientists. Non-hydraulic cement cannot be hardened when exposed to water, unlike the hydraulic cement that behaves differently. Non-hydraulic cements are produced by using materials like gypsum plasters, non-hydraulic lime, and other additives. Non-hydraulic cement should be kept dry to attain strength, and be able to maintain its structure. Mortars that contain non-hydraulic cement attain strength gradually after being dried. Non-hydraulic cements have become obsolete due to the difficulties involved regarding the long duration required for drying and setting.

Hydraulic Cement Applications

There are numerous uses of Hydraulic cement. After mixing of dry hydraulic cement with water, specific chemical reactions occur. These chemical reactions produce compounds that contain water. These compounds cause the mixture to be hardened. The compounds produced due to chemical reaction are not soluble in water. Thus, the cement that has been hardened will maintain its strength even when submerged in water. This specific characteristic makes the hydraulic cement particularly useful for the brick structures in the wet climate. Hydraulic cement is also useful for the harbors that are exposed to sea water. The most widespread form of hydraulic cement is known as Portland cement. It is used for the concrete production that contains cement, gravel, sand, and water. Another general application of the hydraulic cement is for repairing leaks and cracks. Hydraulic cements contain certain elements that cause cement expansion on drying. Thus, the holes in the concrete or other building materials are filled. Such repair work is often required due to the shrinkage of the Portland cement when dried. Basements located in the wet regions are especially vulnerable to leaks, and hydraulic cement is usefully employed at such places.

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Tag: Types of Hydraulic Cement and Its Uses

The power production from wind power plants is unlike as from the usual power plants. This is largely due to the individualist character of the wind energy. This necessitates particular controls and various kinds of electrical generators. For a concise clarification read this article. 

Wind Energy - How Does it Produce Electricity?

In a usual power plant, the input energy follows the output as the electrical load. In a wind power plant, the input energy control is restricted. In addition, the available resources are to be utilized, and at the same time the electrical characteristics are to be balanced. Wind power plants are not like this. The normal power plant utilizes a synchronous generator. It runs at a speed determined by the grid frequency. Accurate control of the input energy is likely when the electric load on the generator is altered. This efficiently manages the speed to correspond with the grid frequency.

In the generator of wind turbine, management of the input energy that is torque from the rotary motion of the wind turbine is not simple. The input energy by wind speeds changes in a broad range. The majority of the producers restrain wind speeds within a limit of 5 m/s to 30 m/s. There can also be unexpected breeze of wind. The generator attempts to turn at a speed close to the synchronous speed determined by the grid frequency. The generator is unduly stressed due to this distinct effect. The usual synchronous generator cannot react to these abrupt changes. To overwhelm these troubles various kinds of electric generators are used of in a wind power plant.

The most commonly utilized is the asynchronous generator and the variable frequency technique. A particular extent of mechanical control is obtainable in the wind turbine blades to manage the speed.

Wind Energy System

What happens when the wind speed rises further than the maximum power output ability of the generator?

  • In wind turbines that are controlled by pitch, a rotation of the individual blades avoids transfer of the total wind force to the generator. This is similar to varying the course of the sail in a boat. This kind of wind turbine needs an electrically or hydraulically functioning pitch control system.

  • In wind turbines with stall control, the wind turbine blades produce aerodynamic forces that decrease the output torque of the turbines at top wind speeds.

  • With change in the wind direction, anemometers can sense these alterations and runs the yaw mechanism that rotates the turbine to confront the wind.

  • When the wind speeds are not in control, the turbine revolution halts by the utilization of mechanical or hydraulic brakes.

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