Bøker utgitt av American Society of Mechanical Engineers

The Water Technology Subcommittee of the ASME Research and Technology Committee on Water and Steam in Thermal Systems, under the leadership of Mr. Robert D. Bartholomew has revised the Consensus on Operating Practices for the Control of Feedwater Boiler Water Chemistry in Modern Industrial Boilers, first published in 1979 with prior revisions published in 1994 and 1998.The task group consisted of a cross section of manufacturers, operators, chemical treatment contractors and consultants involved in the fabrication and operation of industrial and institutional boilers. Members of this group are listed in the acknowledgments.This current document is an expansion and revision of the original, with reordered and modified texts where considered necessary. While significant revisions have been incorporated, it is recognized that there are areas of operating practice not addressed herein. Additional information is available from the references. It is the plan of the ASME Research Committee to continue to review this information, and revise and reissue this document as necessary to comply with advances in boiler design and water conditioning technology.

Nowadays biopolymers such as agar, agarose, alginate, carageenan, cellulose, chitin, chitosan, collagen, hyaluronic acid, gelatin, glucan, starch, DNA, RNA and protein have been produced from laboratory to industrial scale. The physico-chemical properties of these biopolymers such as chemical compositions, solubility, molecular weight and viscosity are of major importance on the preparation of micro- and nanomaterials such as powder, solution, hydrogel, micro- and nano-sized pores in membrane, micro- and nano-fiber, macro- and micro-beads, nano-particles, and micro- and nano-structured scaffold. These micro and nano-materials have been used in various sectors such as agriculture, food, medicine, etc. This monograph will address the source and production methods of biopolymers, properties of biopolymers, preparation of micro- and nano-materials using biopolymers, characterization of micro- and nano-biomaterials and application of micro- and nano-biomaterials.