and other measurements like it
61irrigation and drainage — ▪ agriculture Introduction artificial application of water to land and artificial removal of excess water from land, respectively. Some land requires irrigation or drainage before it is possible to use it for any agricultural production; other… …
62Dutch inventions and discoveries — The Dutch people have a history and tradition in inventing and discovery. Dutch scientists and engineers have made a remarkable contribution to human progress as a whole, from something as simple as the sawmill to microbiology and artificial… …
63GIS and Hydrology — Geographic Information Systems (GIS) has become a particularly useful and important tool in hydrology and to hydrologists in the scientific study and management of water resources. Climate change and greater demands on water resources require a… …
64Relative change and difference — The relative difference, percent difference, relative percent difference, or percentage difference between two quantities is the difference between them, expressed as a comparison to the size of one or both of them. Such measures are unitless… …
65weights and measures — Mercantile activities, including buying and selling; money exchanging; and trade, both local and foreign, as well as reckoning the sizes of land parcels and erecting large buildings, necessitated the development of standards of weights and… …
66Wireless electronic devices and health — For mobile phones, see Mobile phone radiation and health. The World Health Organization has acknowledged that electromagnetic fields (EMFs) are influencing the environment (but not people), and that some people are worried about possible… …
67European Prospective Investigation into Cancer and Nutrition — The European Prospective Investigation into Cancer and Nutrition (EPIC) study is a Europe wide prospective cohort study of the relationships between diet and cancer, as well as other chronic diseases, such as cardiovascular disease. With over… …
68Audio system measurements — are made for several purposes. Designers take measurements so that they can specify the performance of a piece of equipment. Maintenance engineers make them to ensure equipment is still working to specification, or to ensure that the cumulative… …
69Data Validation and Reconciliation — Industrial process data validation and reconciliation or short data validation and reconciliation (DVR) is a technology which is using process information and mathematical methods in order to automatically correct measurements in industrial… …
70Diamond-like carbon — A ta C thin film on silicon (15 mm diameter) exhibiting regions of 40 nm and 80 nm thickness …
