R.J. Stamp, C.F. Earl, P. Holland and N.W. Hird
An automated sheet‐metal manufacturing systems for low‐volume production utilises an industrial robot to move blanks from a store to a press brake.
There can be few who will regret the departure of 1966. As he makes his way towards that dim hall where the years are supposed to sit on their granite columns there will be few…
Abstract
There can be few who will regret the departure of 1966. As he makes his way towards that dim hall where the years are supposed to sit on their granite columns there will be few sighs at the parting. The year has been ‘a holy terror’ to almost everybody. Contraction has been its forte and uncertainty its foible. There have been severe restraints on enterprise, the crushing of many hopes and an air of apathy verging on despair. Future historians may well describe contemporary events as taking place ‘in the year of the Freeze’, much as it was once common to say ‘in the year of the French Revolution’.
PROGRAMME Evaluation and Review Technique, familiarly known as PERT, is a vital subject which is growing rapidly. Recognition of this drew an interested audience to a symposium at…
Abstract
PROGRAMME Evaluation and Review Technique, familiarly known as PERT, is a vital subject which is growing rapidly. Recognition of this drew an interested audience to a symposium at Keele University on July 13, when 14 companies contributed papers on different aspects of critical path‐planning techniques and their experience as users in such disparate fields as shipbuilding, aviation, nuclear and civil engineering, the chemical and electrical industries, and management consultancy.
‘A MAP OF THE WORLD that does not include Utopia is not worth glancing at’ wrote Oscar Wilde. ‘It leaves out the one country at which humanity is always landing. And when it lands…
Abstract
‘A MAP OF THE WORLD that does not include Utopia is not worth glancing at’ wrote Oscar Wilde. ‘It leaves out the one country at which humanity is always landing. And when it lands there it looks out and, seeing a better country, sets sail again. Progress is the realization of Utopias’.
M.N. Desai, S.S. Rana and M.H. Gandhi
Zinc is one of the most important nonferrous metals and finds extensive use in metallic coatings. It is resistant to atmospheric attack and corrodes rapidly only in highly…
Abstract
Zinc is one of the most important nonferrous metals and finds extensive use in metallic coatings. It is resistant to atmospheric attack and corrodes rapidly only in highly polluted air. It is resistant to most fresh waters but its resistance to sea water and to very soft water is lower. In many aerated hot waters, reversal of polarity between zinc and iron occurs at temperatures of 60°C or above. The corrosion products of zinc are readily soluble both in alkalis and acids and protect the metal surface only in neutral media. In neutral solutions, zinc is corroded mainly by oxygen depolarisation. The dissolution rate of zinc in acids is greatly affected by the over‐potential of hydrogen evolution at cathodic inclusions.