Concurrent

No Life is Possible without Current!

2007-12-02T21:52:00.000-08:00

Current being one of the most important discoveries of physics is also called the electric current. All the electrical equipments run on the laws of electrical current and Ohms law is one of the most important laws of electric current. All the advancements in electrical engineering are based on the laws of electric current. Hats off to those genius scientists like Flemming who contributed a lot to the field of electric current.

There are a wide range of equipments based on the electric current. One of the most vital equipment is the electric transformer. In this type of transformer, the current flows in the secondary circuit which is in the perpendicular direction to the current that flows in the primary circuit. There is a wide use of power grid transformers to calculate and monitor the current also called the electric current. The current in the power grid transformer is monitored in the form of primary to secondary current ratio.

Use of current transformers is in many ways including in the protective relying in the electric current or power industry. These transformers make a safe obligation to the huge amounts of currents. These currents flow in the regular fashion in the presence of high voltages in the circuit. The current transformer makes a sure cut off to measure the amount of current and helps to manage the circuitry from the high voltage that flows in the circuit.

There is a method to control the current transformers. These transformers are normally controlled by when the single primary turn is passed under the toroidal core which is well insulated. This core has many turns of wire that are wrapped on it. This current also measures the flow of current and monitors the operation of the power consumed by the transformer.

There are some factors that have to be kept in mind when you deal with the transformer based on current. These factors determine the accuracy of the current transformer. Some of these prime factors are burden, rating factor and the CT configuration. When you determine the value of impedance, you find the outcome of the circuit of the current transformer.

Non-concurrent

2007-11-18T22:39:00.000-08:00

Studies have revealed the development of non concurrent physical problems. These problems are generally related to oral infections. Periodical infections have become a risk factor in non concurrent heart problems. A lot of hypothesis has been done to explain the relationship between infectious agents and non concurrent problems.

Infectious agents relating to oral health have shown direct effects on non-concurrent health problems. Many studies have revealed relationship between oral infections and atherosclerosis. These studies have been based on non concurrent small and selected samples. In many studies on non concurrent issues in medical science, many male subjects have been included. Only few females are included.
In a non concurrent study, periodical conditions have been linked to coronary heart disease mortality rate. Another big non-concurrent study in male health care workers revealed that there is no association between self periodical health disease and coronary heart problems. The aim of this non-concurrent study was to investigate a link between oral health indicators and coronary heart disease among women.

According to a history report about smoking, the smokers were divided as non-concurrent smokers, quitters or non smokers. Such people can also have diabetes. In this case, the physician studies the non-concurrent history of the disease.

Non-concurrent studies in the field of medical science have revealed that people with coronary heart disease were generally of an older age group. They smoked more compared to others. These people generally had hypertension, hypercholesterolemia and diabetes. Non-concurrent studies further revealed that these people had just basic education about the risk factors. Non-concurrent studies revealed that oral health indicators did not detect hypertension in men.

As per the non-concurrent studies, there was more hypertension in women with few teeth. Women who reported irregular dental attendance had more hypertension. As per non-concurrent reports, hypercholesteromia did not vary much between oral health indicators. As per non-concurrent health reports, smoking and low education level was more prevalent in the group that had poor oral health. The other groups were in a much better state.

What Causes Ocean Currents?

2007-10-10T21:32:00.000-07:00

What’s ocean current? It is the direct movement of water of the ocean. It flows in all the five major oceans of earth. The ocean currents comprise of rivers of cold and hot water in the ocean. The ocean currents occur because of the forces that act on the waters of the ocean.

The four main factors that cause the ocean currents are the wind, the rotation of the earth, the temperature, and the gravitation of the moon. The length and direction of the ocean current is determined by the depth contours, the shore line, and various other currents. The ocean current has the power and the capacity to flow thousands of kilometers at a stretch.

Ocean currents play a vital role in the determination of various continents. The regions on the border of the ocean are very much affected by the ocean currents. One of the most talked about ocean currents is the Gulf Stream. This current makes the North West Europe more temperate. It makes this region more temperate compared to any other contemporary region of the same latitude. The temperature of the Hawaii Islands is cool because of the California Currents.

The ocean currents which develop on the surface of the ocean are generally driven by the wind. These currents develop clockwise spirals in the northern hemisphere. Because of the imposed stress of the wind, these ocean currents develop anticlockwise rotation in the southern hemisphere. The ocean currents, driven by the wind, flow at a particular angle in the direction of the driving winds.

The areas of the surface ocean currents change with the change of seasons. This happens in case of equatorial currents. There are deep ocean currents in the ocean also. These currents are driven by the gradients of temperature and density. The ocean basin currents are the most dangerous, and these currents run on the scientific principle of thermohaline circulation.

It becomes very difficult to detect the ocean basin currents. These currents are also called submarine rivers in the science of oceanography. A fleet of underwater robots called argo is currently doing a research on these ocean currents.