Mineral Commodity Profiles
Author: United States. Bureau of Mines
Publisher:
Published: 1978
Total Pages: 310
ISBN-13:
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Author: United States. Bureau of Mines
Publisher:
Published: 1978
Total Pages: 310
ISBN-13:
DOWNLOAD EBOOKAuthor: Milton D. Lower
Publisher:
Published: 1982
Total Pages: 36
ISBN-13:
DOWNLOAD EBOOKAuthor: United States. Bureau of Mines
Publisher:
Published: 1978
Total Pages: 258
ISBN-13:
DOWNLOAD EBOOKAuthor: United States. Congress. Senate. Committee on Commerce, Science, and Transportation
Publisher:
Published: 1982
Total Pages: 1202
ISBN-13:
DOWNLOAD EBOOKAuthor: United States. Congress. Senate. Committee on Commerce, Science, and Transportation
Publisher:
Published: 1981
Total Pages: 154
ISBN-13:
DOWNLOAD EBOOKAuthor: Mines Bureau
Publisher:
Published: 2018-04-19
Total Pages: 504
ISBN-13: 9781411341739
DOWNLOAD EBOOKThis edition of the U.S. Geological Survey (USGS) Minerals Yearbook discusses the performance of the worldwide minerals and materials industries during year 2013 and provides background information to assist in interpreting that performance. These annual reviews are designed to provide timely statistical data on mineral commodities in various countries. This volume covers data from Asia and the Pacific. Each report includes sections on government policies and programs, environmental issues, trade and production data, industry structure and ownership, commodity sector developments, infrastructure, and a summary outlook. Audience: Government employees and contractors, as well as businesses and employees, all working in mineral-related trades, especially with interests in statistics about mineral commodities overseas, will find this resource invaluable.
Author: Lawrence J. Drew
Publisher: Springer Science & Business Media
Published: 1997-02-28
Total Pages: 228
ISBN-13: 9780306455247
DOWNLOAD EBOOKThis book is a guide to the management and use of formulated feeds in semi-intensive and intensive fish and shrimp culture. Feeds represent the major variable operating costs in intensive aquaculture, and optimizing their use represents an opportunity for many farmers to increase or maintain the profitability of their enterprise. Fish farmers have an ever widening range of feed types and feeding methods from which to choose, and must carefully monitor the use of feeds in order to control costs. This book includes details of those biological, environmental, and nutritional factors which influence the feeding, growth and survival of fish and shrimp, and of which some understanding is essential in the establishment of effective feeding practices. Details are given of feed handling and storage methods, and the various methods available for feeding fish are described and their relative methods appraised. Methods for selection of the appropriate feed types, ration sizes, and feeding schedules are included, and details given of how to measure performance of feeding programs. Throughout the text reference is made to key areas of current research, and examples are drawn from different sectors of the industry to illustrate the general principles of feed management.
Author:
Publisher:
Published: 1996
Total Pages: 812
ISBN-13:
DOWNLOAD EBOOKAuthor: Friedrich-Wilhelm Wellmer
Publisher: Springer Science & Business Media
Published: 2007-11-29
Total Pages: 253
ISBN-13: 3540735593
DOWNLOAD EBOOKThis fully updated textbook is intended for the economic geologist who deals with the evaluation of deposits at an early stage of development. It offers rules for quick and easy calculations based on the application of approximate data. It provides both the student and the geologist in the field with a complete set of rules and methods enabling them to perform a quick initial evaluation of the deposit without the support of specialists or computers – even if he is left to his own resources. All rules for calculations are illustrated with examples, and mistakes and pitfalls the authors encountered during their careers are pointed out.