Asemelash Teka Business concept: Purpose of the venture: To meet the demand of customer and built strong customer relationship, to create the employment opportunity for others and to contribute the economy of the country.
The best known is a process using ammonium ferric citrate and potassium ferricyanide. When the paper is illuminated, a photoreaction turns the trivalent ferric iron into divalent ferrous iron. The image is then developed using a solution of potassium ferricyanide forming insoluble ferroferricyanide Prussian blue or Turnbell's blue with the divalent iron.
Excess ammonium ferric citrate and potassium ferricyanide are then washed away. This is a simple process for the reproduction of any light transmitting document. Engineers and architects drew their designs on cartridge paper ; these were then traced on to tracing paper using India ink for reproduction whenever needed.
The tracing paper drawing is placed on top of the sensitized paper, and both are clamped under glass, in a daylight exposure frame, which is similar to a picture frame. The frame is put out into daylight, requiring a minute or two under a bright sun, or about ten minutes under an overcast sky to complete the exposure.
Where ultra-violet light is transmitted through the tracing paper, the light sensitive coating converts to a stable blue or black dye. Where the India ink blocks the ultra-violet light the coating does not convert and remains soluble.
The image can be seen forming. When a strong image is seen the frame is brought indoors to stop the process. The unconverted coating is washed away, and the paper is then dried. The result is a copy of the original image with the clear background area rendered dark blue and the image reproduced as a white line.
This process has several features: By the later s in American architectural offices, a blueprint was one-tenth the cost of a hand-traced reproduction. Traditional blueprints became obsolete when less expensive printing methods and digital displays became available.
In the early s, cyanotype blueprint began to be supplanted by diazo prints, also known as whiteprintswhich have blue lines on a white background; thus these drawings are also called blue-lines or bluelines. Diazo prints remained in use until they were replaced by xerographic print processes.
Xerography is standard copy machine technology using toner on bond paper. When large size xerography machines became available, c. As computer-aided design techniques came into use, the designs were printed directly using a computer printer or plotter.
In most computer-aided design of parts to be machined, paper is avoided altogether, and the finished design is an image on the computer display.
The computer-aided design program generates a computer numerical control sequence from the approved design. The sequence is a computer file which will control the operation of the machine tools used to make the part. The construction drawings will be displayed by the worker on site, as needed.
In the case of construction plans, such as road work or erecting a building, the supervising workers will view the "blueprints" directly on displays, rather than use printed paper sheets. These displays include mobile devices, such as smartphones or tablets. Current use[ edit ] Various base materials have been used for blueprints.
Paper was a common choice; for more durable prints linen was sometimes used, but with time, the linen prints would shrink slightly.
To combat this problem, printing on imitation vellum and, later, polyester film Mylar was implemented. The process is now obsolete.
It was first largely displaced by the diazo whiteprint process, and later by large-format xerographic photocopiers. Now paper copies, made by any method, are rarely used, instead digital copies are used. The traditional term "blueprint" continues to be used informally to refer to various types of image.
Practicing engineers, architects, and drafters just call them "drawings" or "prints". Many of the original paper blueprints are archived since they are still in use.
In many situations their conversion to digital form is prohibitively expensive. Most buildings and roads constructed before c.Now that you understand why you need a business plan and you've spent some time doing your homework gathering the information you need to create one, it's time to roll up your sleeves and get.
plan (plăn) n.
Business concept: Purpose of the venture: G.C. To meet the demand of customer and built strong customer relationship, to create the employment opportunity for . This Restaurant Business Plan has been written to use a starting point for developing your own business plan. You are free to edit and use this business plan and its contents within your organization; however, we do ask that you don't distribute this business plan on the web without explicit permission from us. Now that you understand why you need a business plan and you've spent some time doing your homework gathering the information you need to create one, it's time to roll up your sleeves and get.
1. An orderly or step-by-step conception or proposal for accomplishing an objective: a plan for improving math instruction. 2. A proposed or intended course of action: had no plans for the evening. 3.
A systematic arrangement of elements or important parts; a configuration or outline: a seating plan; the plan of a story.
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