There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality.

Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

I and i

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

Intermolecular And Surface Forces

Nonlinear Oscillations: Exact Solutions and their Approximations

https://pureadmin.qub.ac.uk/ws/files/126683921/Edited_sudagar_R1.pdf

Electroless nickel, alloy, composite and nano coatings – A critical review

Study of Friction and Wear Properties of ABS/Kaolin Polymer Composites Using Grey Relational Technique☆

The present work investigates the effects of heat treatment on friction and wear behavior of electroless Ni–B coatings at elevated temperatures. Coating is deposited on AISI 1040 steel specimens an...

EFFECTS OF HEAT TREATMENT ON TRIBOLOGICAL BEHAVIOR OF ELECTROLESS Ni–B COATING AT ELEVATED TEMPERATURES

Characterisation and corrosion study of electroless Nickel-Boron coating reinforced with alumina nanoparticles

In the present paper an attempt has been made to optimize the wear behaviour of Al7.5%SiC metal matrix composite using Taguchi Method. Al-7.5%SiC metal matrix composite is synthesized using LM6 aluminium alloy as matrix metal and Silicon carbide as reinforcement using Stir casting process. Using L27 orthogonal array and Taguchi method the optimization of wear behaviour of the composite is carried out. The L27 orthogonal array is constructed using three levels of each tribological testing parameter Load (L), Sliding Speed (S) and Time (T). The wear tests are conducted in a Multi-Tribotester (DUCOM TR-25) using a block on roller arrangement at various combinations of the testing parameters. The analysis of the result is carried out using wear depth as system response. Furthermore, ANOVA analysis is carried out to find out the significant test parameters and their interactions affecting the wear behaviour of the composite. Scanning electron microscopy (SEM) is carried out to identify the wear mechanism.

/pdf/wear-characteristics-optimization-of-al-7-5-sic-metal-matrix-lv0bmwihpx.pdf

Wear Characteristics Optimization of Al-7.5%Sic Metal Matrix Composite Using Taguchi Method

Electroless nickel composite coatings possess excellent mechanical and tribological properties such as, hardness, wear and corrosion resistance. Composite coatings can easily be coated not only on electrically conductive materials but also on non-conductive materials like as fabrics, plastics, rubber, etc. This review emphasizes on the development of electroless nickel composite coatings by incorporating different types of hard/soft particles (micro/nano size) in the electroless Ni-P matrix to improve the mechanical and tribological properties of the coatings. The preparation of electroless bath for nickel-phosphorus composite coating, methods to incorporate hard and/or soft particles in the bath, factors affecting the particle incorporation in the coating and its effect on coating structure, hardness, wear resistance, friction behavior, corrosion resistance, and mechanical properties are discussed thoroughly.

Prasanta Sahoo

Papers

Study of Friction and Wear Properties of ABS/Kaolin Polymer Composites Using Grey Relational Technique☆

EFFECTS OF HEAT TREATMENT ON TRIBOLOGICAL BEHAVIOR OF ELECTROLESS Ni–B COATING AT ELEVATED TEMPERATURES

Characterisation and corrosion study of electroless Nickel-Boron coating reinforced with alumina nanoparticles

Wear Characteristics Optimization of Al-7.5%Sic Metal Matrix Composite Using Taguchi Method

Electroless Nickel-Phosphorus Composite Coatings: A Review