다중혈관 관상동맥 환자에서 y-문합을 이용하여 양쪽 내흉동맥만을 사용한 우회술의 조기 성적

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

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

American Society for Testing and Materials

A comprehensive review on the pyrolysis of lignocellulosic biomass

Treatment of textile wastewater using titanium dioxide (TiO2) photocatalysis has been started from the last decade and reached attention to the researchers because of its versatile application. The variety of applications of TiO2 as a photocatalyst has been taken place because of low operating temperature, biologically inert nature, low energy consumption, water insolubility, ease availability and photoactivity, less toxicity, high chemical stability, suitable flat band potential, narrow band gap and environmentally benign. The successful and efficient application of photocatalysis depends on quality of photocatalyst, nature of pollutants, and source of light, which should be in close contact with each other. The TiO2 photocatalyst is used for the effluent treatment of textile wastewater in the presence of ultraviolet (UV) irradiation. Heterogeneous UV-TiO2 photocatalysis is capable to remove organic pollutants from textile wastewater, which has been widely studied and the technology also being commercialized in many developing countries in the world. This review focuses on the mechanism of UV-TiO2 photocatalysis, modification of TiO2 photocatalyst, and application of doping and co-doping in order to improve the photocatalytic activity in wastewater treatment. In addition, the review conveys comprehensive and fundamental assessments of the photocatalytic activity for the removal of organic dyes and phenolic compounds from textile wastewater.

Photocatalytic Activity Improvement and Application of UV-TiO2 Photocatalysis in Textile Wastewater Treatment: A Review

Kinetics of photocatalytic decolourization of cationic dye using porous TiO2 film

Sulphuric acid (H2SO4) was utilized as an activator for the preparation of activated carbon from a biomass solid waste, coconut leaves. The sulphuric acid-treated activated carbon (SAC) was used as low-cost adsorbent for the removal of methylene blue (MB) cationic dye from aqueous solution. Adsorption of MB using SAC from aqueous solution under equilibrium and kinetic conditions in batch mode was evaluated by varying adsorbent dose (0.2–2.5 g/L), solution pH (3–11), initial dye concentration (30–400 mg/L), contact time (0–180 min) and temperature (303–323 K). The Langmuir isotherm model showed better fit to the equilibrium data than the Freundlich model. The adsorption capacity (qm) of SAC increased with temperature where qm varied as follows: 126.9 (303 K), 137.0 (313 K) and 149.3 mg/g (323 K). The kinetic uptake results were well described by the pseudo-second-order (PSO) kinetic for each temperatures. The thermodynamic adsorption parameters (∆G°, ∆H° and ∆S°) were driven by favourable entropic ...

Adsorption of methylene blue onto activated carbon developed from biomass waste by H2SO4 activation: kinetic, equilibrium and thermodynamic studies

Microwave-assisted pyrolysis of palm kernel shell: optimization using response surface methodology (RSM).

https://www.tandfonline.com/doi/pdf/10.1080/16583655.2018.1519893

Adsorptive removal of methylene blue by chemically treated cellulosic waste banana (Musa sapientum) peels

Mesoporous-activated carbon was prepared from fallen coconut (Cocos nucifera) leaf, an agricultural waste through a microwave-induced H3PO4 activation process. The characterization of the coconut leaf–activated carbon (CAC) was evaluated through the iodine number, ash content, bulk density, and moisture content. Fourier transform infrared spectroscopy, scanning electron microscope, Brunauer–Emmett–Teller (BET) surface area, X-ray diffraction, and pHPZC. CAC has a mesopore content of 84% with an average pore size of 36.5 A and a large BET surface area of 632 m2/g. The uptake properties of the CAC with methylene blue was evaluated at different CAC dosage levels (0.2–10 g/L), initial pH (3–10), methylene blue concentration (50–350 mg/L), and time (0–360 min) using batch mode operation. The kinetic profiles were described by the pseudo-second-order kinetics. The equilibrium data were well fitted to the Langmuir model with a maximum monolayer adsorption capacity of 250 mg/g at 30°C. Thermodynamic funct...

Mohd Azlan Mohd Ishak

Papers

Kinetics of photocatalytic decolourization of cationic dye using porous TiO2 film

Adsorption of methylene blue onto activated carbon developed from biomass waste by H2SO4 activation: kinetic, equilibrium and thermodynamic studies

Microwave-assisted pyrolysis of palm kernel shell: optimization using response surface methodology (RSM).

Adsorptive removal of methylene blue by chemically treated cellulosic waste banana (Musa sapientum) peels

Microwave-assisted preparation of mesoporous-activated carbon from coconut (Cocos nucifera) leaf by H3PO4 activation for methylene blue adsorption