Journal of the Association of Engineers, India

S. Chatterjee ¹

Affiliations
1 C.M.P.O., Calcutta, IN

Abstract

Calcutta with its surrounding region was one of the endemic foci of Cholera for a pretty long-time. This disease abruptly eruputs especially during the summer, spreads with strange alacrity and plays havoc with human lives. Insanitary environmental condition and the deterioration of quality and quantity of drinking water accelerate epidemicity and endemicity of asiatic Cholera and other water-borne diseases. In 1884 Dr. Robert Koch had to come from Berlin down to Calcutta (at the invitation of British Government) to investigate into and find out etiological agent for the cause of Cholera. He went even upto Jessore where the scourge of mortality rate from Cholera was then abnormally high. Fortunately, he was able after culture to isolate under his microscope the germ of Cholera-comma bacilli, i.e Cholera vibriofrom the stool of the cholera infected person. His hypothesis stood the test of time.

Full Text

     

S. Chatterjee

Abstract

pH is the logarithm of the reciprocal of the hydrogen ion concentration. Hydrogen ion-concentration is an expression of the intensity factor of acidic or alkaline properties of a solution as opposed to the quantity factors, acidity and alkalinity.

Full Text

     

S. Chatterjee ¹

Affiliations
1 C.M.P.O., IN

Abstract

Machine-types of.
A machine is a contrivance derived by a combination of various components designed to perform certain rational movements for energy conversion or performance of useful works.

Full Text

     

S. Chatterjee ¹

Affiliations
1 Calcutta Metropolitan Planning Organisation, IN

Abstract

Of all the marvels of the modern world which impart enduring effect on human mind, an amazingly beautiful and massive bridge flung across the torrential stream or mighty river demands more attention and admiration from the public. A bridge may be defined in many ways. The bridge is a structure which covers a gap. Generally bridges carry a highway or a railway across a river, canal or another railway.

Full Text

     

S. Chatterjee

Abstract

Now commences the Second All India Conference on Engineering Materials & Equipment in this renowned hall of Rabindra Sadan. At the outset I like to record the deep sense of sorrow on the sudden demise of B.B. Ghosh, the former Adviser to the Governor of West Bengal and Chairman, C.M.D.A who gave enthusiastic support to this All India Conference on Engineering Materials & Equipment held last year.

Full Text

   

S. Chatterjee

Abstract

I must not call it a vote of thanks, rather I should call it a vote of acknowledgements. Because our function has just been inaugurated. We are yet to cover lot of items and in arranging those we shall have to move hand in Rand with our collaborators and patrons. In this vote of acknowledgements I shall only mention the names of the organisation, individuals who have helped us and are still helping to make this Conference a success.

Full Text

   

S. Chatterjee

Abstract

In this technical session we are scheduled to discuss very important sector of human necessities-the production of more food from the soil. From the dawn of civilization, wells are playing a very important role. This has been specifically recorded in Rikh Veda, the oldest literature available to date, wherein it is mentioned.

Full Text

   

S. Chatterjee ¹

Affiliations
1 Calcutta Metropolitan Planning Organisation, IN

Abstract

For the maintenance of health and sanitation of a community it is desirable to dispose of sewage i.e. waste-water in a sanitary manner. The primary object of sewage treatment is the protection of public health in addition to aesthetic, economical and recreational considerations and also to meet the demand for cleaner stream. In order to convey sewage from individual household to the sewage treatment plant it is essential to lay network of pipe lines with proper grade, size and slope. The reticulation system to carry the sewage or wastewater is called sewerage system and the individual pipe lines are called sewers.

Full Text

     

S. Chatterjee ¹

Affiliations
1 Calcutta Metropolitan Planning Organisation, IN

Abstract

To establish the design criteria for a system design for sewerage of a particular area it is necessary to know some essential things relating to the preparation of Project Reports or Master plan.

Full Text

     

S. Chatterjee ¹

Affiliations
1 Calcutta Metropolitan Planning Organisation, IN

Abstract

I heartily welcome you on the last session (S-4) of the three day seminar on Engineering Materials and Equipment, 1970. During the last two days you have heard many erudite scholars who presented their very valuable papers, learned chief guests and chairmen. We have covered engineering materials concerned with masonry works, cement products, paints and coating, waterproofing compounds, treatment plant works, grouting materials, corrosion prevention, etc.

Full Text

   

S. Chatterjee ¹

Affiliations
1 Calcutta Metropolitan Planning Organisation, IN

Abstract

In the development programme in the State of West Bengal there was a provision of Rs. 322 crores for the IVth Plan period. Out of the total amount, Rs. 43.44 crores was earmarked for the development of CMD. With the advent of the President’s Rule and through the earnest effort of the Principal Adviser to the Governor of West Bengal, provision for Calcutta Metropolitan development has been escalated to about Rs. 150 crores, i. e. more than three times of the original provision. In the past many exercises were made for preparation of IVth Plan programme amounting elose to Rs. 100 crores. Then it was reduced to Rs. 80 crores and subsequently brought .down to Rs. 50 crores of rupees which was finalised at Rs. 43.44 crores. To remove the past backlog in civic services and to take up their improvement and extension for essential civic amenities at modest modern standard, detailed programme has been adopted to take up the works. Primary emphasis has been given to environmental sanitation aspect of the programme, traffic and transportation, massive bustee improvement, new area development and medical and education facilities in relatively smaller magnitude.

Full Text