ELECTRON THEORY OF ELECTRICITY

Many different theories have been advanced regarding the nature of electricity but no one can just explain what electricity really is. Today is generally accepted the electron theory.

This theory proposes that all matter (earth, rocks, minerals, elements, etc.) consist of tiny particles called molecules. These molecules are made of two or smaller particles called atoms. The atoms are divided further into smaller particles called protons, neutrons and electrons. Protons, neutrons and electrons are the same in all matter like gases liquids or solids. The different properties or characteristics of all these matters are to see according to the arrangement and number of protons, neutrons and electrons to build in the end a specific atom.

The proton has a positive charge of electricity naturally

The electron has a negative charge of electricity naturally.

The neutron has no charge at all, but adds the weight to the matter.

Central core of an atom:

Protons and neutrons form the nucleus (central core) of the atoms. The electrons revolve around the Nucleus

The simplest atom is the hydrogen

atom (see above). It consists of one positive charged proton and one negative charged electron.

Other atoms are much more complicated. For example a copper atom has 29 electrons revolving around the nucleus in four different orbits.

Size of atoms

0,000 000 000 000 000 000 000 000 000 911

To understand the size of an atom is really difficult.

And for an atom let’s use another example.

If we would think the size of a proton from a hydrogen atom could has the size like a football and could be located in Victoria Falls then its orbit would reach from the Atlantic coast of West Africa to the Pacific coast of East Africa. Now think about a piece of copper: 10 mm thick, 10 mm long and 10 mm wide. Such small pieces

mean, atoms and also electrons and protons are extremely small and relatively vast distances separate them. There should be a clear understanding when we speak about the flow of electrons! Insulators and Conductors Insulators

In most of the elements the nucleus is surrounded by closely held electrons that never leave the atom. These are called bound electrons.

If these bound electrons are in the majority in an element or compounded material then the material is called an insulator (non−conductor of electricity).

Conductors

In other types of material the nucleus is surrounded by electrons that can move freely from one atom to another one if they are forced by applied electricity.

These electrons are known as free electrons. Materials made with these atoms are called conductors of electricity.

MUSE ONE A MOONBEAM

Twinkle you don’t

but glow you do

not yellow not white

through my window.

Half the month I see you

riding above my maple

and I mostly ignore you

because you’re steady

and I’m busy with trivia.

I file you under L

for later.

Since muses unused dry up

in the dark of the moon

(or so some poets fear),

tonight I welcome your light

as a loving underflow

beneath my busy overflow.

Tuning into your glow

far beyond the maple

yet as near as here,

I let my writing listen.

UNDERSTANDING CHILDREN

Fighting among  young children

Constant fighting, put downs, and arguing among children cause

frustration and concern in most parents. Although sibling rivalry

can have several reasons, brothers and sisters often fight to get the

attention of parents or to show power or superiority over another child.

Some bickering is normal among brothers and sisters. Constant

arguing, fighting, and creating potentially dangerous situations,

however, are not normal. The following are some ideas to help

reduce your frustration over quarrelsome siblings and lessen the

fighting too?.

Let siblings express their feelings about each other

When children complain about each other, parents often try to talk

them out of their feelings. (“You shouldn’t be mad at your sister,” or

“Stop complaining. He’s the only brother you have.”)

Instead, acknowledge their anger or frustration. Let your children

know that you understand their anger. That can help them feel better

and even treat another child better. Use this as a tool to lessen sibling

rivalry in several ways. Identify the angry child’s feelings with words,

(“You sound furious! You wish he’d ask before using your things.”)

 and suggest symbolic or creative activity (“Would you like to draw

a picture of how mad you feel?”).

You may be surprised at how quickly the anger disappears when

you let your children know that you’re aware of, and understand

their frustration.?

DONT COMPARE YOUR CHILDREN

It’s natural for parents to notice that one child is more cooperative or

better behaved in some ways than another child in the same family.

Comparing siblings, however, does not encourage better behavior, but

intensifies jealousy and envy. It also is likely that the child you compare

unfavorably may want to get even with the child you praise.

Instead of comparing one child unfavorably to another, comment

only on the behavior that displeases you. (“I see a brand new jacket on

the floor. That bothers me. This?  jacket belongs in the closet.” instead

of “Why can’t you hang up your clothes like your brother?”)

Also, avoid praising one child at the other's expense. (“You’re sure

better at picking up your toys than your brother.”) The child you're

praising may feel sorry for the sibling you are criticizing or the

child may feel superior and look down on the other child.

Sherry and John have 3 children —

Mark, 6, Julie, 4, and Todd, 1. Sherry,in her concern for Julie as “the middle

child,” got in the habit of pointing out Julie’s good behavior to Mark. For

instance, she would say, “Mark, look how Julie is cleaning up her plate. See if you

can finish your dinner, too.” One day when Sherry asked the kids to pick up

toys, she heard Mark say to Julie, “I’m not going to pick up anything

.You’re  the one who does everything right.” ?  Sherry then made a commitment to

stop comparing Mark to Julie. The next day when she saw Julie hanging up her

jacket and Mark dropping his on the floor, she resisted the urge to compare

the children and said to Mark, “I see a coat on the floor that needs hanging up?.

MERGERS AND ACQUISITIONS

Mergers and acquisitions are the most popular means of corporate 

restructuring or business combinations in comparison to amalgamation, 

takeovers, spin-offs, leverage buy-outs, buy-back of shares,

 capital reorganisation, sale of business units and assets etc. Corporate 

restructuring refers to the changes in ownership, business mix, assets 

mix and alliances with a motive to increase the value of shareholders. To 

achieve the objective of wealth maximisation, a company should ?

 continuously evaluate its portfolio of business, capital mix, ownership

and assets arrangements to find out opportunities for increasing the

wealth of shareholders. There is a great deal of confusion and

disagreement regarding the precise meaning of terms relating to the

business combinations, i.e. mergers, acquisition, take-over,

amalgamation and consolidation. Although the economic considerations

in terms of motives and effect of business combinations are similar but

the legal procedures involved are different. The mergers/amalgamations

of corporates constitute a subject-matter of the Companies Act and the

acquisition/takeover fall under the purview of the Security and Exchange

Board of India (SEBI) and the stock exchange listing agreements.

A merger/amalgamation refers to a combination of two or more

companies into one company. One or more companies may merge with

an existing company or they may merge to form a new company. Laws in

India use the term amalgamation for merger for example, Section 2 (IA) of

the Income Tax Act, 1961 defines amalgamation as the merger of one or

more companies (called amalgamating company or companies) with

another company (called amalgamated company) or the merger of two or

more companies to form a new company in such a way that all assets

and liabilities of the amalgamating company or companies become assets 

and liabilities of the amalgamated company and shareholders holding not

less than nine-tenths in value of the shares in the amalgamating

company or companies become shareholders of the amalgamated

company. After this, the term merger and acquisition will be used

interchangeably. Merger or amalgamation may take two forms: merger

through absorption, merger through consolidation. Absorption is a

combination of two or more companies into an existing company. All

companies except one lose their identity in a merger through absorption.

For example, absorption of Tata Fertilisers Ltd. (TFL) by Tata Chemical

Limited (TCL). Consolidation is a combination of two or more companies

Into a new company. In this form of merger, all companies are legally ?.

dissolved and new company is created for example Hindustan Computers

Ltd., Hindustan Instruments Limited, Indian Software Company Limited

and Indian Reprographics Ltd. Lost their existence and create a new

entity HCL Limited.

Types of Mergers

Mergers may be classified into the following three types- (i)

horizontal, (ii) vertical and (iii) conglomerate.

Horizontal Merger

Horizontal merger takes place when two or more corporate firms

dealing in similar lines of activities combine together. For example,

merger of two publishers or two luggage manufacturing companies.

Elimination or reduction in competition, putting an end to price cutting,

economies of scale in production, research and development, marketing

and management are the often cited motives underlying such mergers.

Vertical Merger

Vertical merger is a combination of two or more firms involved in 

different stages of production or distribution. For example, joining of a

spinning company and weaving company. Vertical merger may be

forward or backward merger. When a company combines with the

supplier of material, it is called backward merger and when it combines

with the customer, it is known as forward merger. The main advantages

of such mergers are lower buying cost of materials, lower distribution

costs, assured supplies and market, increasing or creating barriers to

entry for competitors etc.

Conglomerate merger :

Conglomerate merger is a combination in which a firm in one 

industry combines with a firm from an unrelated industry. A typical 

example is merging of different businesses like manufacturing of cement 

products, fertilisers products, electronic products, insurance investment 

and advertising agencies. Voltas Ltd. is an example of a conglomerate 

company. Diversification of risk constitutes the rationale for such 

mergers. 

MEASUREMENT SYSTEM ANALYSIS

Qualification of a measurement system for use by quantifying its accuracy, precision, and stability

–Understand the quality characteristics of measurement

–Understand the method for establishing measurement capability

–Define the requirements of the measurement system

The Qualities of Measurement

Resolution

•Accuracy (Bias)

•Linearity

•Repeatability

•Reproducibility

•Stability

Resolution is the incremental ability of a measurement system to discriminate between measurement values. The measurement system should have a minimum of 20 measurement increments within the product tolerance (e.g, for a full tolerance of 1, minimum resolution is .05)

Accuracy—or bias—is a measure of the distance between the average value of the measurement of a part and the True, certified, or assigned value of a part.

Linearity   is the consistency of accuracy (bias)over the range of measurement; a slope of one (unity) between measured and true value is perfect.

Repeatability   is the consistency of a single appraiser to measure the same part multiple times with the same measurement system; it is related to the standard deviation of the measured values.

Reproducibility is the consistency of different appraisers in measuring the same part with the same measurement system; it is related to standard deviation of the distribution of appraiser averages.Stability is the ability of a measurement system to produce the same values over time when measuring the same sample As with statistical process control charts, stability means the absence of “Special Cause Variation” which is indicated by an “in control” condition, leaving only "Common Cause” or random variation.

   Generally, precision is the principle concern; inaccuracy due to linearity or constant            bias can typically be corrected through calibration•

  Measurement Error is the statistical summing of the error generated by Repeatability(the     variation within an appraiser) and Reproducibility (the variation between appraisers)–            σerror= √(σ repeability)2+ (σ reproducibility)2

•Total Measurement Error spans the interval that contains 99% of probable  measurement values from a measurement system, using a single part–Total  Measurement Error = 5.15 * σerror• Measurement system precision is defined by  the Precision/Tolerance Ratio, the ratio between Total Measurement Error and    the part tolerance–P/T Ratio = 5.15 * σerror/ (Upper Spec Limit –Lower Spec Limit)

Error Independence is defined by the lack of a relationship between measurement error and the measurement value; error generated by the measurement process should be independent of the measured value

•Stability is defined by the randomness of the measurement error; purely random measurement error is evidence of good stability

•Linearity is defined by the slope of measured value vs. true value; a slope of 1 (a 1:1 relationship) is perfect

•Bias Offset is defined by the average difference between the measured value and the true value at the specification target; a value of zero is perfect

–The combination Bias Offset and Linearity define the amount of systematic measurement error across the entire measurement range; they are typically corrected through calibration

THE FISH

ALTHOUGH you hide in the ebb and flow

Of the pale tide when the moon has set,

The people of coming days will know

About the casting out of my net,

And how you have leaped times out of mind

Over the little silver cords,

And think that you were hard and unkind,

And blame you with many bitter words.?