THE DESIGN AND ANALYSIS OF EXPERIMENTS. By Oscar Kempthorne. New York, John Wiley and Sons, Inc., 1952. 631 pp. $8.50. This book by a teacher of statistics (as well as a consultant for \"experimenters\") is a comprehensive study of the philosophical background for the statistical design of experiment. It is necessary to have some facility with algebraic notation and manipulation to be able to use the volume intelligently. The problems are presented from the theoretical point of view, without such practical examples as would be helpful for those not acquainted with mathematics. The mathematical justification for the techniques is given. As a somewhat advanced treatment of the design and analysis of experiments, this volume will be interesting and helpful for many who approach statistics theoretically as well as practically. With emphasis on the \"why,\" and with description given broadly, the author relates the subject matter to the general theory of statistics and to the general problem of experimental inference. MARGARET J. ROBERTSON

The Design and Analysis of Experiments

J. Appl. Cryst.の発刊に際して

The American Society for Testing and Materials (ASTM) is an independent organization devoted to the development of standards.

American Society for Testing and Materials

Dye and its removal from aqueous solution by adsorption: A review

Adsorption of methylene blue on low-cost adsorbents: A review

Adsorption of copper (II), chromium (III), nickel (II) and lead (II) ions from aqueous solutions by meranti sawdust.

Malaysia is among the top most important palm oil producers in the world. The country is experiencing a robust development in new oil palm plantations and palm oil mills. This commodity plays a significant role in the Malaysia economic growth. As this industry becomes bigger and wider, a substantial amount of oil palm wastes is generated and create the problem of biomass waste overload. This problem tends to burden the operators with disposal difficulties and escalates the operating cost. Oil palm waste has significant potential in many applications. Traditionally, through mechanical conversion, some of the wastes are converted into organic fertilizers, animal feedstock or soil conditioner in oil palm plantations. Apart from mechanical conversion, thermochemical processes such as direct combustion, gasification, pyrolysis and liquefaction are the methods that are useful to transform the waste into value-added products. Recently, liquefaction has gained good attention in order to utilize the waste because of its simplicity and ability to yield a product that combine both of the useful functional groups present in liquefying solvents and the biomass. Within the scope, the objective of this paper is to review the current situation related to the oil palm industry in Malaysia, availability of the oil palm waste and its utilization through thermochemical conversion, with specific regards to the liquefaction process.

Othman Sulaiman

Papers

Adsorption of methylene blue on low-cost adsorbents: A review

Adsorption of copper (II), chromium (III), nickel (II) and lead (II) ions from aqueous solutions by meranti sawdust.

An overview of the oil palm industry in Malaysia and its waste utilization through thermochemical conversion, specifically via liquefaction

Removal of Cu(II) and Pb(II) ions from aqueous solutions by adsorption on sawdust of Meranti wood.

Scavenging behaviour of meranti sawdust in the removal of methylene blue from aqueous solution