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The Visual, Under the Challenges of Contemporary Science
Solomon Marcus 고려대학교 응용문화연구소 2012 에피스테메 Vol.0 No.7
We approach topics such as: the rise of the digital-analogous interaction, as a consequence of the emergence in many fields of the discrete-continuous interaction; the consequences in the field of the visual and the related physical, biological, linguistic, psychological and computational aspects; 'visible' versus 'intelligible' the place of the 'visual' with respect to 'reality' and 'fiction' the visual accounting for infinities of various types; the challenge of the wrong visual representations; 'visual' and 'macroscopic' 'visual' and 'fractal' 'visual' and non-Euclidean universes.
Privacy-preserving Attribute Matchmaking in Proximity-based Mobile Social Networks
Solomon Sarpong,Chunxiang Xu 보안공학연구지원센터 2015 International Journal of Security and Its Applicat Vol.9 No.5
The major impediments that mostly arise in matchmaking in mobile social networks are ensuring the privacy of users’ attributes, finding the intersection of attributes of the matched-pair without revealing any other information, and ensuring that the matched-pair get to know the intersection mutually. Also, in virtually all the existing protocols, the initiator of the matchmaking does not set a threshold number of common attributes an individual should have with him/her before qualifying as a pair. Hence, we propose a hybrid matchmaking cryptographic protocol that will overcome these impediments. In our proposed protocol, an initiator of matchmaking sets a threshold number of common attributes that an individual should have to qualify as a matching-pair. The protocol also ensures that no information about the intersection set is leaked to persons not in the protocol. To further enhance the security and privacy in the protocol, the attributes of the persons our protocol are authorized. The authorization of the attributes is intended to thwart malicious behavior by the persons in the protocol and hence, prevents semi-honest attacks. Furthermore, in this proposed protocol, persons in the protocol get to know the intersection of their attributes mutually.
Prevalence of Antibiotics in Nectar and Honey in South Tamilnadu, India
Solomon, RD. Jebakumar,Santhi, V. Satheeja,Jayaraj, Vimalan The Korean Society for Integrative Biology 2006 Integrative biosciences Vol.10 No.3
Reverse-Phase High-performance Liquid Chromatography (RP-HPLC) based technique is one of the most sensitive techniques to detect the antibiotics present in honey. In the southern part of Tamilnadu, India, majority of the farmlands are occupied by plantations such as coconut, banana and rubber. A variety of antimicrobial compounds and antibiotics, which have been reported in pollen, nectar and other floral parts of the plant, gets accumulated in honey through honeybees (Apis mellifera). We have collected the nectar samples from banana (Musa paridasiaca) and rubber (Ficus elastica) flowers and the honey from honey hives of banana and rubber cultivated areas. The extracted nectar and honey samples are subjected to RP-HPLC analysis with authentic antibiotic standards. Nectar and honey samples showed 4-17, 11-29 ${\mu}g/kg$ of streptomycin, 2-29, 3-44 ${\mu}g/kg$ of ampicillin and 17-34, 26-48 ${\mu}g/kg$ of kanamycin respectively.
Duration Estimate at Completion: Improving Earned Value Management Forecasting Accuracy
Solomon Sackey,이동은,김병수 대한토목학회 2020 KSCE JOURNAL OF CIVIL ENGINEERING Vol.24 No.3
Earned Value Management (EVM) has been established as a project management technique for project monitoring and control. The traditional EVM performs well in forecasting Cost Performance index and other cost metrics. However, in terms of schedule performance, the accuracy of the forecasted schedule metrics through the traditional EVM approach are always questionable. The schedule performance is not measured in time unit but rather in monetary units or uses cost information, which may cause misleading in the interpretation of the EVM schedule metrics. The schedule performance is not accurately forecasted, resulting in underestimating the estimate at completion (t). Even the renowned Earned Schedule also uses cost as a proxy to determine the earned schedule. This paper presents a new EVM tool, Duration estimate at completion (DEAC-model) developed to accurately forecast the time estimate at completion. DEAC-model uses the actual time spent on each activity, either in progress or upon completion, where the Performance is measured in time units. The benefits of DEAC-model to project management team and researchers are that it can be used: 1) to forecast schedule metrics accurately so that resources can be effectively allocated to complete the remaining activities, 2) as a gauge to assess if the project can be completed within the plan schedule, and 3) to apply time series and simple linear regression model concepts using excel worksheet syntax to forecast duration estimate at completion that is easily applicable.