During the 18th and 19th centuries, cast iron was a cheaper engineering material than wrought iron because it did not require intensive refining and working with hammers, but it was more brittle and inferior in tensile strength.
The outcome of this study favors the usage of effective yet computationally cheap feature engineering methods such as EDA; for other building energy data mining problems, the method proposed in this study still holds important implications since it provides a starting point where efficient feature engineering and machine learning models could be further developed.
All the materials used in this technology are very cheap, so the engineering cost is lower than, and the efficiency higher than, those of the usual consolidation methods the heavy tamping method, the sand or granulate stone compaction stake method, and dry jet mixing method.
The outsourcing trend and economic reforms that encourage foreign investment have helped India ride on cheap labor and engineering talent.
Startups are flocking to Detroit for the cheap space, amazing engineering talent and sheer marketability of the area.
"In Brazil, most people that go to university do social science programs and this happens not because people desire to study philosophy, anthropology, geography, history," said the study's author Alberto Rodriguez, "but because private universities, where the growth has taken place, offer these courses because they are cheaper than offering engineering".
Thus, cheap and safe genetic engineering in the long run is more likely to ameliorate than to exacerbate human inequality.
Therefore, it could be of interest to increase the amount of Cr on the surface of relatively cheap materials by surface engineering.
But the industry will have to rely less on cheap debt and financial engineering and more on improved management of the firms it buys meaning greater upheaval for employees.
The UK steel industry has shed thousands of jobs as it suffers at the hands of cheap Chinese imports, and engineering groups that manufacture kit for oil companies are feeling the pinch too.
