نتایج جستجو برای: sponge cube
تعداد نتایج: 19912 فیلتر نتایج به سال:
در سالهای اخیر بررسی امنیت سومین تابع چکیدهساز امن[1] یکی از مهمترین موضوعات مورد توجه پژوهشگران حوزه رمزنگاری بوده است. توابع چکیدهساز در رمزنگاری کاربردهای متعددی دارند. از اینرو امنیت توابع چکیدهساز در مقابل حملات مختلف برای سامانههایی که از آن استفاده میکنند، بسیار مهم است. حملات و تحلیلهای متعددی تا امروز بر روی SHA-3 اعمال شده است؛ اما تاکنون هیچکدام موفق به شکستن آن بهصورت ...
Enrichment of zeolite and sponge as ethylene absorbent with potassium permanganate was theidea of this study to provide an efficient way to scavenge ethylene during storage period ofthree Rosa hybrida cv. ‘Shiraz’, ‘Avalanche’, and ‘After-party’ cut flowers. A preliminaryexperiment revealed that two mL of potassium permanganate solution (1 mM) was enough toenrich two gra...
Sponge structure is a structure widely used in the design of cryptographic algorithms that reduces the design of the algorithms to the design of a permutation or pseudo-random function. The development of sponge-based algorithms and the selection of designs based on this structure in SHA3 and CAESAR competitions increase the need to examine its security against various types of attacks. In the ...
background marine sponge/nano-cuo as a natural catalyst efficiently catalyzed the sulfonylation reaction of p-chlorobenzene sulfonyl chlorides with amines in order to prepare sulfonamides. the advantages included use of a natural catalyst, ease of handling, requirement of a very small amount of catalyst, mild reaction condition and appropriateness to high yield. objectives the current study aim...
a down-flow hanging sponge (dhs) reactor has been developed for sewage treatment, mainly in developing countries. this novel reactor employs polyurethane sponge material as a support medium, which promises a proliferation of a large amount of biomass, offering excellent pollutant removal capability. three types of sponge medium were evaluated with respect to water distribution and oxygen mass t...
2017 marks the 40 anniversary of the Rubik’s Cube (under its original name the Magic Cube). This paper-demonstration describes explorations of the cube as a performance controller for music. The pattern of colors on a face of the cube is detected via USB video camera and supplemented by EMG data from the performer to model the performer’s interaction with the cube. This system was trialed in a ...
With an aim of improving bone regeneration, chitosan sponge containing platelet-derived growth factor-BB (PDGF-BB) were developed. For fabrication of chitosan sponge, chitosan solution was freeze-dried, crosslinked and freeze-dried again. PDGF-BB was incorporated into the chitosan sponge by soaking chitosan sponge into the PDGF-BB solution. Release kinetics of PDGF-BB, cell attachment, prolifer...
conclusions since wetting of umbilical cord during tub bathing delays the separation of umbilical cord, sponge bathing is recommended for newborns until the umbilical cord falls off. results the time of separation of umbilical cord in babies who were given sponge bathing (6.1 ± 1.4) was shorter compared to those given tub bathing (8.3 ± 2.5) (p < 0.005). patients and methods this quasi-experime...
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