In this note, we describe an error in the proof for CLRW2 given by Landecker et al. in their paper at CRYPTO 2012 on the beyond-birthday-bound security for tweakable block ciphers. We are able to resolve the issue, give a new bound for the security of CLRW2, and identify a potential limitation of this proof technique when looking to extend the scheme to provide asymptotic security.

In this study, we analyzed the strength and shrinkage properties of concrete with three additives, superabsorbent polymer (SAP), calcium sulfoaluminate (CSA) clinker, shrinkage-reducing admixture (SRA), to verify internal curing reduction effects. According compressive tests, use SAP as an additive resulted in a slight decrease strength, whereas using 10% CSA clinker 8 MPa higher than that ordi...

Resource recovery plants with a waste presorting process prior to incineration have not been successfully implemented in many developing countries. At least two engineering projects were fully assessed in Taiwan for the possible installation of presorting facilities in order to increase the potential efficiency of material and energy recovery for municipal incinerators. But the reuse potential ...

This paper mainly reports an experimental investigation on the residual mechanical and fracture properties of polystyrene aggregate concrete (PAC) after exposure to high temperatures up to 800 degrees Celsius. The fracture properties namely, the critical stress intensity factor ( K I C S ), the critical crack tip opening displacement (CTODC) for the Two-Parameter Model, and the fracture energy ...

M. Naor (Ed.): TCC 2004, LCNS 2951, pages 336 352, February 2004. c © Springer-Verlag Berlin Heidelberg 2004. Abstract. We consider compositional properties of reactive systems that are secure in a cryptographic sense. We follow the well-known simulatability approach of modern cryptography, i.e., the specification is an ideal system and a real system should in some sense simulate this ideal one...

Self-healing materials are smart materials with the capability to repair itself autonomously after being damaged. Since cracks commonly occur in structures consisting of materials like concrete, polymers, etc., a self-healing mechanism is crucial for the durability of the material. In this research, we present a two-dimensional mathematical model of the self-healing process in concrete. This mo...

<p>Every building renovation or reconstruction often occurs demolition of the wall. The this wall becomes construction waste therefore it is necessary to experiment with using become a productive material. This research an in making concrete waste. used form rubble from ruins red brick compression test method refers 1974:2011 SNI regulations on concrete. In test, focus maximum compressive...

Ultra-High Performance Concrete (UHPC) improves the bearing capacity as well durability of structural concrete. This study aims to investigate constituents UHPC in both phases: aggregate and cementitious materials. The proper ratio mixture was chosen based on combining an gradation quartz sand crushed stone. In addition, compressive strength hardened cement paste investigated achieve optimal si...

The moisture and dimensional behaviors of a nail-laminated timber (NLT)–concrete slab composed an NLT–plywood composite topping concrete are monitored for 385 days. is developed using as flexural elements such floors. humidity control wood gently introduces significant fluctuations under the ambient relative into slab, in result changes. equilibrium content increases from 6.7% to 15.3% during m...

The article reviews the option of how to make top pavement asphalt-concrete mixture adhere reliably base, which is underlying cement-concrete coating. bitumen-latex emulsion suggested as a binder for two layers.