Manufacturers have long benefited from reusing returned products and parts. This benevolent approach can minimize cost and help the manufacturer to play a role in sustaining the environment, something which is of utmost importance these... more
Manufacturers have long benefited from reusing returned products and parts. This benevolent approach can minimize cost and help the manufacturer to play a role in sustaining the environment, something which is of utmost importance these days because of growing environment concerns. Reuse of returned parts and products aids environment sustainability because doing so helps reduce the use of raw materials, eliminate energy use to produce new parts, and minimize waste materials. However, handling returns effectively and efficiently can be difficult if the processes do not provide the visibility that is necessary to track, manage, and re-use the returns. This paper applies advanced analytics on procurement data to increase reutilization in new build by optimizing Equal-to-New (ETN) parts return. This will reduce 'the spend' on new buy parts for building new product units. The process involves forecasting and matching returns supply to demand for new build. Complexity in the proc...
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Research Interests: Engineering, Computer Science, Software Engineering, Software Development, Safety-Critical Systems, and 13 moreComputer Software, Requirements elicitation, Software Requirements, Agile software development, Agile, Requirements Analysis, FDA, Requirements, Requirement, Software Development Process, SDLC, Medical, and Computer Sciences
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This prospective, randomized study was performed at a single institution. Low-risk patients undergoing elective vascular procedures were enrolled (August 2007 to June 2009). Participants were randomized into 3 separate arms. They received... more
This prospective, randomized study was performed at a single institution. Low-risk patients undergoing elective vascular procedures were enrolled (August 2007 to June 2009). Participants were randomized into 3 separate arms. They received cefazolin, cefazolin + vancomycin, or cefazolin + daptomycin prior to surgery. In total, 169 patients were included in the analysis. Mean age was 64 (range, 26-85), and the patients' comorbidities were similar across all groups. Only Szilagyi II and III infections were analyzed. Any infection/methicillin-resistant Staphylococcus aureus (MRSA) infections was seen in 8 (12.9%)/2 (3.23%) in the cefazolin group, 7 (12.5%)/4 (7.14%) in the cefazolin + vancomycin group, and 2 (3.92%)/(0%) in the cefazolin + daptomycin group. In this study, population of low-risk patients undergoing elective vascular procedures, there was a trend toward fewer infectious complications in the cefazolin + daptomycin group. Adding anti-MRSA agents to the current standard ...
Research Interests: Surgery, Risk assessment, Medicine, Prospective studies, Humans, and 15 moreFemale, Male, Antibiotic Prophylaxis, Risk factors, Daptomycin, Aged, Middle Aged, Odds ratio, Chi Square Distribution, Risk Factors, Risk Assessment, Regimen, Logistic Models, Methicillin Resistant Staphylococcus Aureus, and Cefazolin
ABSTRACT This paper proposes a nested particle swarm optimization (PSO) method to find the optimal number of clusters for segmenting a grayscale image. The proposed approach, herein denoted as PSilhOuette, comprises two hierarchically... more
ABSTRACT This paper proposes a nested particle swarm optimization (PSO) method to find the optimal number of clusters for segmenting a grayscale image. The proposed approach, herein denoted as PSilhOuette, comprises two hierarchically divided PSOs to solve two dependent problems: i) to find the most adequate number of clusters considering the silhouette index as a measure of similarity; and ii) to segment the image using the Fuzzy C-Means (FCM) approach with the number of clusters previously retrieved. Experimental results show that parent particles converge towards maximizing the silhouette value while, at the same time, child particles strive to minimize the FCM objective function.
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In recent years, most companies now interact with their customers for businesses purposes through contact or call centers. Substantially, customers now perceive a company through their interaction with Customer Services Representatives... more
In recent years, most companies now interact with their customers for businesses purposes through contact or call centers. Substantially, customers now perceive a company through their interaction with Customer Services Representatives (CSR's) in their centers. The CSR has become the key role and channel in maintaining brand reputation and ensuring customer retention. Explicitly, in a contact center environment Customer and CSR are the two main transactional entities, and business development depends on their interaction. Contact center management routinely adopts numerous processes to enhance centre services by training their CSRs, call recording for quality monitoring, acquiring customer feedback after the call, and assessing similar factors. However, these factors are often inadequate in advancing the customer experience, due to operational scale and being exclusively focused on the telephone as the medium for interaction. Every contact center strives to maximize its value through, improved customer satisfaction, retention and first call resolution; and minimized communication expenditures, for example, call handling time or talk time. Smart call routing can manage these improvements to enhance overall customer experience, leading to sales and maintained quality of service. The CSR to Customer call-outcome is the critical success factor (CSF) to improvement and optimization. This paper considers a new operational model for achieving significantly improved call-outcomes. A call outcome in contact center environment is most typically random, like flipping a coin, to tell whether a call achieves a sale or not. This random outcome can be made more certain if predicted and optimized by exploiting personal chemistry as a critical factor. Fortunately contact centers are more controlled environments within which to gain psychographic and demographic insights to gauge customer/CSR chemistry. This paper proposes that descriptive, predictive and prescriptive analytical techniques can be applied to psychographic and demographic insights; to find the ideal mapping between them. By using those techniques, the model shows a ten to fifteen percent improvement in call-outcomes.
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Abstract This paper introduces a microstrip triple-mode resonator that is realized by adding an additional path to an already reported microstrip square-loop dual-mode resonator. The additional path is realized by a meander half... more
Abstract This paper introduces a microstrip triple-mode resonator that is realized by adding an additional path to an already reported microstrip square-loop dual-mode resonator. The additional path is realized by a meander half wavelength strip that is connected to two ...
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Abstract. Single Carrier Transmission (SCT) is a competing technique for Orthogonal Frequency Division Multiplexing (OFDM) in Broadband Wireless Systems (BWS). Recent developments in Frequency Domain Equalization (FDE) using Decision... more
Abstract. Single Carrier Transmission (SCT) is a competing technique for Orthogonal Frequency Division Multiplexing (OFDM) in Broadband Wireless Systems (BWS). Recent developments in Frequency Domain Equalization (FDE) using Decision Feedback Equalization (DFE) ...
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Research Interests: Computer Science, Information Retrieval, Artificial Intelligence, Natural Language Processing, Text Mining, and 14 moreSupport Vector Machines, Feature Selection, Lexicon, Text Classification, Urdu, Corpus, Normalization, Support vector machine, Task Complexity, Naive Bayes, Classification Accuracy, Naive Bayes Classifier, Bayes classifier, and Statistical techniques
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Treatment of the preformed or the in situ generated aryl/alkyl dithiocarbamates triethylammonium salt (ArNHCSS(-).Et(3)NH(+)) with methyl acrylate in an aqueous medium gave solely arylisothiocyanate (ArNCS), whereas the in situ generated... more
Treatment of the preformed or the in situ generated aryl/alkyl dithiocarbamates triethylammonium salt (ArNHCSS(-).Et(3)NH(+)) with methyl acrylate in an aqueous medium gave solely arylisothiocyanate (ArNCS), whereas the in situ generated aryl dithiocarbamic acid (ArNHCSS(-).H(+)) yielded exclusively the thia-Michael adduct (ArNHCSSCH(2)CH(2)COOMe). This differential reactivity can be explained by two alternative mechanisms which is dependent both on the nature of the counter cation and on the pH of the reaction medium. Irrespective of the counter cations, the thiocarbonyl sulfur (=S) atom, having large orbital-coefficient, is softer compared to the thiol/thiolate sulfur (-SH/S(-)) in a dithiocarbamate salt and the former adds to the Michael acceptor by a 1,4-addition.
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A highly efficient method for the N-acylation of both symmetrical and unsymmetrical thioureas by the use of lead (II) salts and triethylamine has been achieved. The reaction gives regioselective N-acylated product for unsymmetrical... more
A highly efficient method for the N-acylation of both symmetrical and unsymmetrical thioureas by the use of lead (II) salts and triethylamine has been achieved. The reaction gives regioselective N-acylated product for unsymmetrical thiourea. For unsymmetrical thiuourea, ...
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During magma ascent in the volcanic conduit, the decompression of a silicic melt may result in the crystallization of morphologically and compositionally specific crystals, designated microlites. Hence, microlites have been considered as... more
During magma ascent in the volcanic conduit, the decompression of a silicic melt may result in the crystallization of morphologically and compositionally specific crystals, designated microlites. Hence, microlites have been considered as probes of mechanisms and time ...