Application Of Analysis Techniques Research Articles

Entropy optimization in a radiative and chemically reactive EMHD flow of a nanofluid coexisting Ohmic dissipation and multiple slips

Purpose This research focuses on the controlling irreversibilities in a radiative, chemically reactive electromagnetohydrodynamics (EMHD) flow of a nanofluid toward a stagnation point. Key considerations include the presence of Ohmic dissipation, linear thermal radiation, second-order chemical reaction with the multiple slips. With these factors, this study aims to provide insights for practical applications where thermal management and energy efficiency are paramount. Design/methodology/approach Lie group transformation is used to revert the leading partial differential equations into nonlinear ODE form. Hence, the solutions are attained analytically through differential transformation method-Padé and numerically using the Runge–Kutta–Fehlberg method with shooting procedure, to ensure the precise and reliable determination of the solution. This dual approach highlights the robustness and versatility of the methods. Findings The system’s entropy generation is enhanced by incrementing the magnetic field parameter (M), while the electric field (E) and velocity slip parameters (ξ) control its growth. Mass transportation irreversibility and the Bejan number (Be) are significantly increased by the chemical reaction rate (Cr). In addition, there is a boost in the rate of heat transportation by 3.66% while 0.05⩽ξ⩽0.2; meanwhile for 0.2⩽ξ⩽1.1, the rate of mass transportation gets enhanced by 12.87%. Originality/value This paper presents a novel approach to analyzing the entropy optimization in a radiative, chemically reactive EMHD nanofluid flow near a stagnation point. Moreover, this research represents a significant advancement in the application of analytical techniques, complemented by numerical approaches to study boundary layer equations.

Immediate Transitions in Timed Continuous Petri Nets: Performance Evaluation and Control

Timed continuous Petri nets (TCPNs) are continuous-state dynamical systems that were originally defined to approximate the behavior of timed discrete event systems. In particular, it has been shown in the literature that TCPNs approximate the average marking and throughput of a class of generalized stochastic Petri nets (GSPNs), a well-known model used for the performance evaluation analysis of manufacturing, communication, logistic and traffic systems, among others. In this work, the TCPN model is enriched with <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">immediate transitions</i> , which represent very fast events, resulting in a new model denoted as TCPN <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$+$</tex-math> </inline-formula> I. Then, a fast simulation algorithm for TCPN <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$+$</tex-math> </inline-formula> Is is introduced. Nevertheless, the introduction of continuous immediate transitions leads to ill-conditioned problems when analyzing the TCPN <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$+$</tex-math> </inline-formula> I model. For such reason, a couple of procedures are, here, introduced to transform a TCPN <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$+$</tex-math> </inline-formula> I model into a set of dynamically equivalent TCPNs, by removing the immediate transitions, allowing, thus, the application of analysis techniques and methods already proposed in the literature for TCPN systems. The application of the results introduced in this work for performance evaluation and model predictive control is illustrated through a manufacturing example.

The Quest for Customer Intelligence to Support Marketing Decisions: A Knowledge-Based Framework

The quest for customer intelligence to create value in marketing has highlighted the significance of the research focus of this paper. Customer intelligence, which is defined as understandings or insights resulting from the application of analytic techniques, plays a significant role in the survival and prosperity of enterprises in the knowledge-based economy. In this light, the paper has developed a framework of customer intelligence to support marketing decisions through the lens of knowledge-based theory. The proposed framework aims at supporting enterprises to identify the right customer data for the right customer intelligence corresponding with the right marketing decisions. In this light, four types of customer intelligence are clarified including product-aware intelligence, customer DNA intelligence, customer experience intelligence, and customer value intelligence. The applications of customer intelligence are also elucidated with relevant marketing decisions to maximize value creation. To illustrate the framework, an example is presented. The importance and originality of this study are that it responds to changes in customer intelligence in the age of massive data and covers multifaced aspects of marketing decisions.

Food Safety Assessment: Overview of Metrological Issues and Regulatory Aspects in the European Union

The safety of the food we consume has a direct impact on individual and population health and affects the economic growth of the region where food safety is practised and enhanced. The central goal of the European Commission’s Food Safety policy is to ensure a high level of protection of human health covering the whole supply chain. In recent years, great attention has been paid to food testing and the application of metrological tools to support food safety. The global food market and national and international food safety regulations have created a huge demand for the measurement traceability and comparability of analytical results that are independent of time or space boundaries. This review provides an overview of the European food safety policy and regulation, with a focus on the measurement-related elements of the European Union (EU) food law. It also highlights how the application of analytical techniques, with particular reference to separation approaches, and metrological tools can ensure the control of certain contaminants that nowadays represent the main challenges for food safety (e.g., mycotoxins, nanoparticles, emerging and process contaminants). METROFOOD-RI-Infrastructure for promoting metrology in food and nutrition is therefore described in this context. This European research infrastructure has been developed and is being implemented in the frame of the European Strategy Forum on Research Infrastructures (ESFRI) to support metrology in food and nutrition and establish a strategy allowing reliable and comparable analytical measurements in food across the entire process line, from primary producers to consumers, and making data findable, accessible, interoperable, and reusable (FAIR).

Contributed Session III: Target tracking shows that millisecond-scale visual delays are faithfully preserved in the movement of the hand

Image differences between the eyes can cause millisecond-scale interocular differences in processing speed. For moving objects, these differences can cause dramatic misperceptions of distance and 3D direction. Here, we develop a continuous target-tracking paradigm that shows these tiny differences are preserved in the movement dynamics of the hand. Human observers continuously tracked a target undergoing Brownian motion with various luminance differences between the eyes. From this data, we recover the time course of the visuomotor response. The difference in the visuomotor response across luminance conditions reveals temporal differences in visual processing between the eyes. Next, using traditional psychophysical methods, we measure interocular processing speed differences in equivalent conditions using a paradigm developed to study the Pulfrich effect. Target tracking and traditional psychophysics provide estimates of interocular delays that agree to within a fraction of a millisecond. Thus, despite the myriad signal transformations occurring between early visual and motor responses, millisecond-scale visual delays are preserved in the movement of the hand. This paradigm provides the potential for new predictive power, the application of analytical techniques from computational neuroscience, and rapid measurements in populations in which traditional psychophysics might be impractical. Further implications for future research will be discussed.

HTS generator, cable and rectifier as a system for hybrid propulsion system

Designing systems of future aircraft is a very complex task due to demanding requirements. Superconducting electrical machines and cables could be a solution due to their high specific power. Developing a system which includes an HTS generator, a rectifier, and an HTS cable needs application of analytical techniques. Besides, some optimization techniques should be used to choose proper device parameters in order to provide maximum specific power of the entire system. This paper describes the main principals of developing such a system and provides the results of preliminary calculation of the specification of the system with a 500kW output power.

Potential use of Structured Analytical Techniques in Building Investigative Versions

. The aim of this study is to present the possibilities of using structured analytical techniques in building investigative versions. They may relate to ongoing criminal or operational proceedings, but also allow verification of versions created for the purposes of supervision or evaluation of other proceedings. In this area, the study complements and at the same time extends the existing knowledge in the field of forensic tactics. The author presented the current state of knowledge on the methods of building criminal versions and the theoretical justification for the introduction of these techniques to the practice of law enforcement agencies in this aspect. An outline of the methodology of the application of analytical techniques in the construction of new and verification of existing research methods is also presented. This study is based on the author’s speech at the 3rd National Scientific Conference entitled ‘Police X Files’ organised by the Faculty of Law and Administration University of Lodz from September 26th–28th, 2018.

POTTERY GRAVE GOODS FROM FUNERARY CONTEXTS AT THE ARGARIC SITE OF PEÑALOSA (JAÉN). A METHODOLOGICAL APPROACH

The need for interdisciplinary studies is the basis of ambitious research (ARCHEM Project) that is carried out in the argaric settlement of Peñalosa (Baños de la Encina, Jaén), combining organic residues analysis and techno-typological studies of pottery found in funerary contexts. Manufacture and use of pottery could inform us about customs and traditions that remain hidden in time and in the archaeological record. Knowing the implications and decisions of potters as well as the functionality of those vessels deposited inside the graves can approach the idiosyncrasy of a society in the Bronze Age in the southeast of the Iberian Peninsula. The methodology used to identify patterns of functionality is highlighted by the combination of cutting-edge analysis techniques in both fields such as the application of different chromatographic techniques (GC-MS, UPLC-HRMS and GC-C-IRMS) that allow to identify the organic compounds in the ceramics and the application of analytical techniques from Earth Sciences (Stereomicroscopic, X-Ray Diffraction and Petrography), which allow us to characterize ceramic pastes and knowing the catchment of raw materials. This study highlights the Peñalosa site as a melting pot of new research and it brings us closer with the use of a complex methodology combined to the societies 4000 years ago.

Multi-approach stability analyses of large caverns excavated in low-angled bedded sedimentary rock masses in Singapore

The first commercial underground rock caverns for hydrocarbon storage in South East Asia, the Jurong Rock Caverns Project (JRC Project), have recently been completed in Singapore. The storage capacity of 5 caverns is 1.47 million cubic meters and 3.5 million cubic meters of rocks were excavated in this project. Geologically, it was excavated in low-angled bedded meta-sedimentary mudstone, pyroclastic rocks and sandstone. Although traditional arch-roofed style excavations are typical for tunnel and cavern for stability condition, flat-roofed profiles tend to form in low-angle stratified sedimentary rock mass. In this study, the stability of such flat-roofed tunnel and cavern with structurally controlled stability was analyzed using geotechnical classification systems including the stability graph method, analytical Voussoir techniques and numerical models. Accordingly, and once presented the main features of the project, characterization of the rock masses is presented. Some classification system approaches providing a convenient but probably over-estimated support and reinforcement recommendation are illustrated. Then, basic wedge stability analysis is briefly illustrated. Voussoir analogue techniques are applied to unsupported cavern profiles showing instability, but clear stability for the supported case. Discontinuous models of the final designed cavities are presented, showing a good agreement with indicative measurements on place, and stress distributions associated with the excavation sections are analyzed using Examine2D to show that abutment relaxation was unlikely to occur in JRC Project. The study shows that classification systems are useful tools but application of analytical techniques and numerical models contribute to a better understanding of the excavation and reinforcement process.

Application of Analytical techniques in characterization ofCalx, a dosage form of traditional systems of medicine

Calx is a unique dosage form of traditional medicinal system and is considered more effective than others. Calx is mainly prepared from metals and minerals. Metals and minerals are transformed either into their carbonates or oxides by Ihraq Ignition or Taklees calcination to make it suitable for internal human use. The product of calcination is known as calx or Kushta in Unani Bhasma in Ayurveda and Parpam in Siddha. Traditional methods color odor taste consistency floating test finger test wall sticks test curd test lemon test etc. for analyzing the quality and purity of calx are not efficient in detecting heavy metal toxicity. Modern analytical techniques viz. X-ray Diffraction X-ray Fluorescence Inductively Coupled Plasma Atomic Emission Spectroscopy Inductively Coupled Plasma Optical Emission Spectroscopy Inductively Coupled Plasma Mass Spectrometry Atomic Absorption Spectroscopy etc. can detect traces of metal and is more reliable for quality and purity analysis. This review is focused on the application and advantages of these techniques in the characterization of calx.nbspnbsp

Determination of macro, micro and trace elements in citrus fruits by inductively coupled plasma-optical emission spectrometry (ICP-OES), ICP-mass spectrometry and direct mercury analyzer.

Citrus fruits are widely consumed around the world. Several elements are known to have important physiological functions in living things, whereas others are reported to have toxic effects. This study was aimed to analyze the concentration of macro, micro and trace elements in citrus fruit varieties. Samples were acid digested using a microwave system and analyzed for macro elements by inductively coupled plasma-optical emission spectrometry (ICP-OES) and for micro and trace elements by inductively coupled plasma-mass spectrometry (ICP-MS). The application of analytical techniques was analyzed by determining method validation parameters including limits of detection and quantification, linearity, precision, spiking experiments and analyzing certified reference material (NIST CRM-1570a), Spinach leaves. The elemental levels of citrus fruits were found largely to be dependent upon the type of analyzed samples. Among nutritionally important elements, citrus fruits were good sources of potassium (95.13-270.4 mg kg-1 ), calcium (10.57-75.29 mg kg-1 ), zinc (466.5-1611 µg kg-1 ) and manganese (35.35-1902 µg kg-1 ). The concentrations of toxic elements (Pb, Cd, As, Al, Hg) were very low. In general, the concentrations of analyzed elements were within the critical levels specified by the Food and Agriculture Organization/World Health Organization and Food and Nutrition Board USA. Linear discriminant analysis successfully separated the samples into clear groups with 93.9% correct classification. © 2018 Society of Chemical Industry.

Determination of Xylitol in Sugar-Free Gum by GC–MS with Direct Aqueous Injection: A Laboratory Experiment for Chemistry Students

Proficiency with instrumental analysis via GC–MS is an important skill for chemistry students. The application of analytical techniques and fundamental theoretical principles to real-world problems...

Using Social Network Analysis to Investigate Positive EOL Communication

ContextEnd-of-life (EOL) communication is a complex process involving the whole family and multiple care providers. Applications of analysis techniques that account for communication beyond the patient and patient/provider will improve clinical understanding of EOL communication. ObjectivesThe objectives of the study were to introduce the use of social network analysis to EOL communication data and to provide an example of applying social network analysis to home hospice interactions. MethodsWe provide a description of social network analysis to model communication patterns during home hospice nursing visits. We describe three social network attributes (i.e., magnitude, directionality, and reciprocity) in the expression of positive emotion among hospice nurses, family caregivers, and hospice cancer patients. Differences in communication structure by primary family caregiver across gender and time were also examined. ResultsMagnitude (frequency) in the expression of positive emotion occurred most often between nurses and caregivers or between nurses and patients. Female caregivers directed more positive emotion to nurses, and nurses directed more positive emotion to other family caregivers when the primary family caregiver was male. Reciprocity (mutuality) in positive emotion declined toward day of death but increased on day of actual patient death. There was a variation in reciprocity by the type of positive emotion expressed. ConclusionOur example demonstrates that social network analysis can be used to better understand the process of EOL communication. Social network analysis can be expanded to other areas of EOL research, such as EOL decision making and health care teamwork.

Determination of Capsaicinoids in Red Pepper Products from South Korea by High-Performance Liquid Chromatography with Fluorescence Detection

ABSTRACTThis study aimed at determining the concentrations of the major capsaicinoids, namely, capsaicin and dihydrocapsaicin, in commonly consumed red pepper products from South Korea. The capsaicinoids were extracted with 95% methanol and determined by high-performance liquid chromatography with florescence detection. The analytical method was validated by quality assurance parameters such as the linearity, limits of detection and quantification, precision, and accuracy. Satisfactory results were obtained in accordance to the specified criteria for application of analytical techniques in food. The concentration of capsaicinoids was the highest for red pepper powder (4.18–139.4 mg/100 g), followed by gochujang (0.93–23.20 mg/100 g), kimchi (0.05–1.16 mg/100 g), and sliced kimchi (0.06–0.88 mg/100 g). Comparing the capsaicinoid contents in samples from different production areas, no significant differences were found. This research concluded that the capsaicinoid content of red pepper products provided valuable information regarding the samples.

Connecting databases with process mining: a meta model and toolset

Process mining techniques require event logs which, in many cases, are obtained from databases. Obtaining these event logs is not a trivial task and requires substantial domain knowledge. In addition, an extracted event log provides only a single view on the database. To change our view, e.g., to focus on another business process and generate another event log, it is necessary to go back to the source of data. This paper proposes a meta model to integrate both process and data perspectives, relating one to the other. It can be used to generate different views from the database at any moment in a highly flexible way. This approach decouples the data extraction from the application of analysis techniques, enabling the application of process mining in different contexts.

Human-centred analysis of the dependencies within sets of proofs

A failure in safety-critical systems, such as vehicles, aircrafts, etc., may endanger human lives. It is crucial that these system behave correctly, in accordance to their specification and fulfilling all the safety-critical properties defined for them. Safety could be guaranteed through the application of analysis techniques, in the form of formal verification and testing. However, verification of a real-size system means having a large number of lemmas, depending on each other. An update in one lemma might require changes in many other lemmas. It would be inefficient to find the existing dependencies out when the proof process is already running. We present a methodology for analysis of the dependencies between lemmas within the provided set of proofs. The application of this methodology to the Isabelle/HOL theories is supported by a tool. The tool provides a quick automated analysis and easy-to-check representation of the results, as well as allows optimisation of the provided set of proofs.

ANALYSIS IN AUDITING: SOME QUESTIONS FOR APPLICATION

In the difficult period of the country's economic structure functioning, investment forms the future of technical, financial and economic security. The legally regulated institutional framework creates opportunities for an abrupt innovation start. However, the low positions, which are caused by the economy of war, do not provide opportunities for its implementation. Consequently, the full and rational use of existing chances becomes a guarantee of at least a slow implementation of the strategies of innovative development of enterprises. In this way, the system of auditor consulting and formation of audit opinion about the effectiveness of innovative processes and projects is a priority. Available analysis tools, system approach and cash flow modelling, provide investors with confidence and generate interest from shareholders and owners. The calculation of a number of indicators characterizing the effectiveness of innovation projects becomes a guarantee of their implementation and achievement of management objectives. Therefore, the application of analytical techniques in the process of audit of innovative projects allows the auditor to form an independent opinion on their convenience.

Application of analytic technique using green light parallel-polarized light images to atopic dermatitis

Application of analytic technique using green light parallel-polarized light images to atopic dermatitis

Application of Analytic Technique Using Green Light Parallel-Polarized Light Images in Various Skin Diseases.

Application of Analytic Technique Using Green Light Parallel-Polarized Light Images in Various Skin Diseases.

Application of analytic technique using green light parallel-polarized light (PPL) images in various skin diseases

Application of analytic technique using green light parallel-polarized light (PPL) images in various skin diseases