Titlebook: Silica Fume in Geopolymers; A Comprehensive Revi Alaa M. Rashad Book 2023 The Author(s), under exclusive license to Springer Nature Switzer

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Introduction,tion and type, activator/binder ratio, testing age, curing condition, SF amount and Si/Al ratio. The target of this document is to review, summarize and analyse the past studies focused on the effect of SF, in its three various forms, on the properties of geopolymers.

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Silica Fume as an Activator Component,roblems. In this part, the earlier studies that used SF as a part of activator were collected. The effect of this activator on the properties of different geopolymer types was reviewed, summarized and analysed.

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General Perspective and Suggestions for Upcoming Work,centage of studies about the effect of SF as a part of precursor on each property of geopolymers was established and compared. The effect of SF in its three forms (part of precursor, part of activator and foaming agent) on the various geopolymer types was summarized.

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Ansgar Zerfaß,Lisa Dühring% bacterial and 90% of archaeal genomes. These are observed to evolve and adapt rapidly by acquiring new spacer sequences on exposure to highly dynamic genomes of phages. This bacterial immune system matches the spacer sequences located between CRISPR repeat sequences and the invading DNA, to carry

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Securing Asymmetric Key Cryptography in 6G Wireless and Mobile Environments: A Comprehensive Reviewy by taking advantage of the limits and weaknesses that the authors have identified. This paper proposes a hybrid cryptosystem security solution that integrates various cryptographic techniques—to overcome these issues and provide a reliable and adaptable defence. Lattice-based encryption, quantum-r

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Book 1979roceedings of the First All-Union Conference on Crystal Growth. The initiative and considerable efforts of the principal editor of the entire series. N. N. Sheftal‘, and his assistants led over the next 15 years to the publica­ tion of ten volumes which have assumed a leading position among the nume