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188. Computer Security. ESORICS 2023 International Workshops - CPS4CIP, ADIoT, SecAssure, WASP, TAURIN, PriST-AI, and SECAI, The Hague, The Netherlands, September 25-29, 2023, Revised Selected Papers, Part II

Author

Sokratis K. Katsikas, Habtamu Abie, Silvio Ranise, Luca Verderame, Enrico Cambiaso, Rita Maria Ugarelli, Isabel Praça, Wenjuan Li 0001, Weizhi Meng 0001, Steven Furnell, Basel Katt, Sandeep Pirbhulal, Ankur Shukla, Michele Ianni, Mila Dalla Preda, Kim-Kwang Raymond Choo, Miguel Pupo Correia, Abhishta Abhishta, Giovanni Sileno, Mina Alishahi, Harsha K. Kalutarage, and Naoto Yanai

Published
2024
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192. Study of pulp and paper making characteristic produces from sago fiber waste.

Author

Maurila, Talita Dara, Rahmayanti, Handika Dany, Ardiani, Septia, Hastuti, Novitri, and Indrawani, Dian Anggraini

Subjects
PAPER pulp, PAPERMAKING, FIBERS, TENSILE strength, CHEMICAL properties
Abstract

This study is about the characterization of pulp and paper from sago fiber waste. The process has several stages: preparing a solution, sago fiber analysis, pulping process, and printing process. The required solutions are NaOH solution (technical), 10% BaCl2 solution, 0.1 N HCl solution, 60% ethanol solution, phenolphthalein indicator solution, 1% starch indicator solution, sindur methyl indicator solution of NaOH titration, borax solution, Na₂S solution (technical), and THIO solution (1 N; 0.1 N). The pulping process is carried out by inserting sago fiber and solutions into a rotary digester machine for 4 hours (170oC). Then, it is removed after 24 hours and dried by a spinner machine. Characterizations on the sample include: chemical and physical properties, mechanical properties, and optical properties. The result shows that sago fiber waste can be used as raw material for paper. The value of grammage of 62 g/m2, thickness of 0.1294 mm, water absorption capacity of 627.27 g/m2, water content of 9.83%, ash content of 26.26%, pH of 7.9, tensile strength of 14.22 MD and 13.33 CD, brightness of 19.8%, and opacity 22.78. The pore diameter of the paper is 4.608 nm. [ABSTRACT FROM AUTHOR]

Published
2024
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193. Assessing the potential utilization of super teak for furniture, flooring, veneer, pulp paper and wood pellets.

Author

Indrawan, D. A., Damayanti, R., Ozarska, B., Illic, J., Pari, G., Krisdianto, Dewi, L. M., Pari, R., Agustiningrum, D. A., Adi, D. S., Sofianto, I. A., Djarwanto, and Rahmanto, R. G. H.

Subjects
WOOD pellets, WOOD-pulp, PAPER pulp, WOOD floors, TEAK, WASTE paper, EUCALYPTUS
Abstract

Super teak is a fast grown species of teak (Tectona grandis Linn. f) derived from several clones. This has facilitated plantation rotations as short as 5 years. The main target of conventional plantation teak was initially for high value logs. Young teak wood from plantation forest usually has a small diameter. Moreover, the wood from very young stems is unsuitable for direct utilization, but advance wood processing technology can improve the wood properties of small diameter logs. This study aimed to assess the potential utilization of young super teak for high quality products namely furniture, flooring, and veneer, and assess the possibility of the use of manufacture waste for pulp paper and wood pellets as side products. The evaluation were carried out according to the National Indonesian Standard and other international standard requirements. 18 logs from wet (Bogor) and dry (Magetan) sites representing large, medium, and small diameter classes were collected. According to SNI 01-0608-1989 Timber for Furniture, 5-year-old super teak was suitable for furniture production. Furthermore, according to SNI 7732.1: 2011: Teak Veneer, the super teak was classified as Grade C because of the presence of sapwood, pinholes, tight and lose knots. According to Australian Timber Flooring Association, 5-year-old super teak was classifiesd as soft flooring group, the same group as mature teak & radiata pine. The young super teak was classified as Class Quality/Group II with very low active alkali consumption and low Kappa Number according to Indonesian wood fibre criteria for pulp and paper materials and Association of Pulp and Paper in Brazil. Finally, based on SNI 802: 2014 Wood Pellet, the super teak was recommended as by-products for utilising the wood waste. [ABSTRACT FROM AUTHOR]

Published
2024
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195. Comparison of the Quality of Ink Prints on the Market on Coated and Uncoated Paper.

Author

Rahmayanti, Handika Dany, Murniati, Riri, Supardianningsih, Hastuti, Novitri, Zulfi, Akmal, Fitriady, Yunus, Darmanto, Nova, Andayu, Haryasena Gusti, and Rafryanto, Ande Fudja

Subjects
PRINTING ink, OPACITY (Optics), ELECTRONIC paper, QUALITY control
Abstract

Printing inks of various brands are available in the field. Available colors include Cyan, Magenta, Yellow, and Black. Ink is an important parameter in determining print quality. Optical density is one of the important parameters used to control print quality. The optical density of the printed material is a form of ink-paper interaction. This research is oriented toward investigating the optical density value of Cyan printing ink on coated and non-coated paper. The main objective of this research is to analyze the effect of printing ink thickness on the optimal density value. Optical density values of Cyan prints were obtained using densitometer measurements, printed with the IGT method on coated and uncoated paper. The optical density values of several types of ink on the market that have been printed on coated and uncoated paper have never been reported before. [ABSTRACT FROM AUTHOR]

Published
2024
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