bluuebunny/crossref_metadata_2025_split huggingface dataset:
Construction Enterprise Material Stocks Management Economic and Mathematical Model Creating
Authors: Kharchenko Yuriy , . . 
Published: July 2018

Material stock management modern economic and mathematical models are studied. Materials stock formation system at one of Poltava construction enterprises was analyzed by the author. It is proposed to use a deterministic and probabilistic model for determining the optimal size and time of placing an order depending on the group of building materials. It will increase financial resources usage efficiency to hold stocks and increase construction enterprise profit.
Strength Design of Compressed Reinforced Concrete Elements by Deformation Method Based on Extreme Criterion
Authors: Shkurupiy Oleksandr , Lazariev Dmytro , Davydenko Yurii 
Published: July 2018

Investigations of the normal sections strength of compressed elements using a deformation method were performed. The shape of the section, the class of concrete and the percentage of reinforcement were taken into account when performing analytical calculations. Analytical, numerical, optimization techniques etc. were used for solving of this task. The results of the analytical calculations and the data of the experimental studies were compared.Â Â
Urban Green Zones Planning Concept and Ecological Functionality (Through the Example of Poltava, Ukraine)
Authors: Smoliar Natalia , Bredun Viktor , Toronchenko Olha 
Published: July 2018

In the article major peculiarities and problems in architectural and planning decisions concerning Poltava urban greening are represented, and ways of solving them are suggested. The town’s green zones appropriation, their ecological, town-planning, sanitary and hygienic, recreational, and in case of some of them nature-sanctuary importance is considered. Structure and economical constituents of Poltava urban green zones planning, which represents average town urban ecosystems in the central (forest-steppe) zone of Ukraine, is analyzed. Maps and figures depicting typical schemes of manufacturing, transportation structure, density of population and urban greening are provided. Outraging of acceptable concentrations in dust and formaldehyde while analyzing urban atmospheric air pollution level according to the data obtained from stationary sites, is shown. These proves importance of taking into account consideration of interdependence between levels and locating of town’s natural resources polluting sources, first of all atmospheric air, with urban territory greening planned decisions. Based on materials concerning study of green zones ecological functionality effectiveness peculiarities, the concept of Poltava urban green zones planning is suggested. Modern town architectural and planning decisions ecological aspects should be integrated into local strategies and development programs, town general lay-outs, transportation systems planning, strategy referring environmental protection, and require local self-government and state support.
Bilinear Relational Neighborhood Model of the Stage of Diffusion of Sugar Production Based on the Heat Balance Equation
Authors: Shmyrin A.M , Mishachev N.M , Kanyugina A.S 
Published: July 2018

In this paper, the problem of mathematical modeling of the stage of diffusion of sugar production is considered. To build the model, a combined approach is used: the structural identification based on the relational neighborhood scheme is refined with the help of the physical equation of the heat balance and then the parametric identification of the coefficients is performed using standard regression methods. The resulting model is bilinear. The corresponding model, resolved with respect to critically important temperature parameters, is fractional-bilinear. Parametric identification of the model is based on seasonal sampling of production data, the sample size is more than 10000.
Grid Tied Photovoltaic System with Perturb and Observe Maximum Power Point Controller and LCL Filter
Authors: Pilla Ramana , Hareesh Kumar Jallu , Chandana Adavipalli 
Published: July 2018

This paper describes a grid tied photovoltaic (PV) system along with maximum power point tracking (MPPT) and LCL filter. A PV model is developed using mathematical equations of solar cell. This PV module is controlled and optimized with MPPT algorithm. The maximum power point (MPP) tracking is implemented using Perturb and Observe (P&O) algorithm from the solar array and given to DC-DC boost converter. The enhancement of unfettered PV Voltage is achieved using boost converter and also used to verify the precision of MPPT technique. Using inverter controller, the boost converter DC output voltage is converted into AC voltage. The phase and frequency of the grid is tracked using phase locked loop (PLL) to integrate the inverter with the grid. In addition to this, to diminish the harmonics in the inverter output an LCL filter is used. The performance of grid tied photovoltaic system is extensively simulated with MATLAB software.
A Comparative Study to Evaluate the Performance of Classification Algorithms in Mammogram Analysis
Authors: K. Sajan S , Germanus Alex M 
Published: July 2018

Breast cancer is a major threat humans are facing irrespective of geographical limits. The awareness about breast cancer has increased during the last decade and many preventive measures were in practice to detect the breast cancer before the symptoms were felt. Mammography is a screening methodology currently in practice. In this paper the mammogram image is analyzed using automated system. The automated system is designed to be capable of distinguishing the mammogram image into a normal or malignant. This process involves image enhancement and image segmentation at preprocessing level. Histogram equalization technique is used to transform low contrast region of the mammogram into region with higher contrast and Fuzzy C Means (FCM) algorithm is used to segment the mammogram image into regions suitable for further analysis. After enhancement and segmentation at preprocessing level the classification is done using three classification algorithms like decision tree classifier, Neural Network classifier and Support Vector Machine (SVM). The performance of the classification algorithms is evaluated using the following criteria like speed, flexibility, robustness, scalability, interpretability, Time complexity and also based on accuracy, sensitivity and specificity. The results obtained in classification are compared with other classification algorithms. It is found that the neural network classifier approach produces better results compared to other classifiers.The average accuracy in diagnosis by Neural Network approach classifier is around 91%. Also it is found that the decision tree approach is much flexible and easy to use compared to other approaches.
Multi Criteria Decision Analysis (MCDA) Framework for the Integrated Urban Water System
Authors: Shrivastava Pooja , K. Verma M , Murmu Meena , Ahmad Ishtiyaq 
Published: July 2018

Over the past century urban water system of developed and developing cities are under increasing stress as water dearth. The estimation of possible solutions for water management in megacities requires the spatially distributed dynamic and grid-based replication of the evolution of public water infrastructure under consideration of changes (e.g. climate, global, environment, economy, and land-use). These simulations can be realized with the help of frameworks for integrated urban water system. The MCDA framework for integrated approaches of urban water system is characterized as single system (COMBINED SEWER SYSTEM) and entire system (WATER DISTRIBUTION, SEWER NETWORK etc.) investigation with consideration of decentralized system and spatial-temporal interactions and the dynamic feedback of population models to water infrastructure. Urban water system needs the frame work which will meet the sustainable needs of future. The present work identifies the best solutions for existing problems in urban water infrastructure while making interaction with stakeholders to reach sustainable framework for urban water management in this water dearth regions. This framework will provide new knowledge of sustainable integration system between the social and environmental issues.
A Green Approach to Preparing Bio-Inhibitor for Mild Steel Corrosion in Different Acid Mediums
Authors: Poongothai N , Athira R , K. Neena P 
Published: July 2018

Inhibition efficiency (I. E) of various concentrations of Carica Papaya (C. P)extracts on the corrosion of mild steel (MS) in 1M HCl and 0.5M H2SO4medium was investigated by weight loss and electrochemical methods at room temperature and elevated temperature. Acid extract of C. P was characterized by using FTIR and XRD spectral studies to identify the major constituents present in it. Zeta potential and EDAX analysis were carried out for the extract to identify electrochemical aspect of a particle’s surface, and information about a particle’s dispersibility, aggregability, and adhesion ability can be obtained from this measurement. Surface analysis studies such as FESEM and contact angle measurement were carried out for the C. P extracts to locate the surface coverage of the inhibitor and confirm the hydrophilic nature on the metal surface. Langmuir and Temkin adsorption isotherm confirm the mono layer adsorption and heterogeneity of the MS surface. Thermodynamic data’s such as activation energy, Gibbs free energy, enthalpy and entropy changes were calculated using weight loss measurements data at room as well as elevated temperatures and identified free energy of adsorption and exothermic reaction taking place during corrosion process. Phytochemical studies confirm the presence of chemical constituents with hetero atom that provide more I.E due to its adsorption of inhibitor on metal surface.
Construction Cost and Carbon Emission Computational Model for Office Buildings in Malaysia
Authors: M. A. Klufallah Mustafa , Othman Idris , Fadhil Nuruddin Muhd , Faris Khamidi Mohd 
Published: July 2018

A novel embodied carbon emission and construction cost computational optimization model has been developed based on evolutionary Genetic Algorithm (GA) for purpose built offices in the Malaysian construction industry. The GA evaluation was lack of implementation in addressing financial and environmental performances for construction projects in Malaysia. Therefore, the office project was evaluated through the adoption of ISO 14040 framework and evolutionary GA. The model was designed to provide alternative optimal design solutions for office buildings, which can be used at the early project planning and design stages. The assessment of embodied emissions was limited to pre-construction phase with “cradle to site” boundary. The model was tested statically to confirm the accuracy of the generated results. It provides an assessment model for managing carbon emission based on evaluation of environmental and financial performancesand it was validated by an application to an office building and the findings obtained suggest that the it would be suitable for use in practice.
Fiber Surface Modification; Characterization of Rattan Fiber Reinforced Composite
Authors: Elvistia Firdaus Flora , Dachyar M 
Published: July 2018

Increasing the awareness of global warming and the depletion of petroleum resources had made many researchers focuses on using natural materials such as rattan. Its an edible fibers are prepared to reinforce matrix yielding composite products within the aid of epoxy based resin and hardener which also perform as catalyst. The fibres are previously conducted an alkali treatment, this was considered to enhance the cohessiveness of fibers to matrix. Silane and dimethylethanolamine (DMEA) as an adhesives booster is respectively added to the composite formula. The specific purpose of this research is to know the influence of addition of Silane and DMEA to the final properties of composite; flexural, tensile strength, elongation at break, hardness, and thermal. From the test results it is found that Silane keeps the matrix amorphous, while the addition of DMEA formed crystalline polymer. The ultimate property of the composites are found also depends on fiber woven pattern.
Supplier Selection on Rendement Rate of Patchouli Leaf
Authors: Hanum Bethriza , Izzati Titia , Cakravastia Andi 
Published: July 2018

The aim of research is to design the model of rendement rate by considering the criteria of patchouli leaf and designing a good supplier selection model to maximize the company profit by considering the acceptance of the patchouli oil rendement rate. The selection of suppliers discussed is to consider the quantity of goods offered by suppliers, demand, budget and acceptance limitation of rendement rate. To overcome these limitations, it is necessary to develop a supplier selection model that takes into consideration the quantity limitation of goods offered by the supplier and the acceptance of the rendement rate by using Linear Programming (LP) method. The result of the research shows that the determination model of the rendement rate developed to determine the percentage of Rendement Rate (RR) of each raw material supplied by the supplier so that the company can know the quality of patchouli leaf based on the type of patchouli leaf. The analysis result of numerical sample calculation shows that the selected supplier is not a supplier with good patchouli leaf criteria, the analysis result of parameter changes in oil demand and budget indicate that when oil demand is increased over the benchmark data, the model output is insensitive, but when demand is lowered below the benchmark data, the model output looks sensitive.
Effectiveness of Natural Coagulant in Coagulation Process: A Review
Authors: Hariz Amran Amir , Syamimi Zaidi Nur , Muda Khalida , Wai Loan Liew 
Published: July 2018

Natural coagulants have been increasingly popular in the past few years due to its benefits and the fact that it resolves most of the associated problems when using chemical coagulants. Plant-based natural coagulants perform coagulation either by polymer bridging or charge neutralization, it can be extracted from various plant components. Concerted research and development efforts have been conducted in discovering new plant species and constituents that can be used as natural coagulants, which further boosting the effectiveness of existing plant-based natural coagulants. The objective of this paper is to provide a mini review on studies done over the span of ten years regarding plant-based natural coagulants. This paper also includes advantages and disadvantages of natural coagulants prior to identify several potential research gaps to provide platform towards the need of further study.
Can upper limb taping or exercises improve hand function, writing speed and self-perception of performance in adolescent school children?
Authors: Memon Hiba , Shimpi Apurv , Shyam Ashok , Sancheti Parag 
Published: July 2018

Abstract

Background
The majority of students spend time in writing, which is a prime performance measure in examinations. Enhancement in handwriting should benefit students to attain better academic performance.

Objective
To assess the effectiveness of taping and exercises on hand function, writing speed, self-perception of writing and to compare these techniques.

Methods
A randomized control trial was conducted using cluster sampling in adolescent children across four schools in an urban city. A 4-week intervention study was conducted on 123 students divided into taping, exercise and control groups. Outcome measures were grip strength, pinch strength, 12-min writing speed test and the Writer Self-Perception Scale (WSPS). For intra-group analysis, a paired t-test was used for parametric values and the Wilcoxon signed rank test was used for non-parametric values. For inter-group analysis, one-way analysis of variance (ANOVA) for parametric values and the Kruskal-Wallis test for non-parametric values was used.

Results
The taping group showed a significant improvement in grip strength (1.79 kg; p = 0.00), pinch strength [1.67 lb (757.4 g); p = 0.00] and writing speed (39.77 words/12 min; p = 0.00). The exercise group showed significant improvement in grip strength (2.09 kg; p = 0.00), pinch strength (1.28 lb; p = 0.00), writing speed (28.38 words/12 min; p = 0.00). In the control group, there was a significant increase in pinch strength (1.023 lb; p = 0.01) and writing speed (12.94 words/12 min; p = 0.02). Inter-group analysis showed significant difference in writing speed (p = 0.002) and grip strength (p = 0.00). There was no significant difference in perception (p = 0.071).

Conclusion
Taping and exercise are equally effective for enhancement of hand function, writing speed and self-perception in adolescent school children.
Visual Temporal Contrast Sensitivity in the Behaving Mouse Shares Fundamental Properties with Human Psychophysics
Authors: Umino Yumiko , Pasquale Rose , Solessio Eduardo 
Published: July 2018

AbstractThe mammalian visual system has a remarkable capacity to detect differences in contrast across time, which is known as temporal contrast sensitivity (TCS). Details of the underlying neural mechanisms are rapidly emerging as a result of a series of elegant electrophysiological studies performed largely with the mouse as an experimental model. However, rigorous psychophysical methods are necessary to pair the electrophysiology with temporal visual behavior in mouse. The optomotor response is frequently used as a proxy for retinal temporal processing in rodents. However, subcortical reflexive pathways drive the optomotor response rather than cortical decision-making areas. To address this problem, we have developed an operant behavior assay that measures TCS in behaving mice. Mice were trained to perform a forced-choice visual task and were tested daily on their ability to distinguish flickering from nonflickering overhead lights. Correct responses (Hit and Correct Rejections) were rewarded. Contrast, temporal frequency, and mean illumination of the flicker were the independent variables. We validated and applied the theory of signal detection to estimate the discriminability factor (d´), a measure of performance that is independent of response bias and motivation. The empirical contrast threshold was defined as the contrast necessary to elicitd´ = 1 and TCS as the inverse of the contrast threshold. With this approach, we established in the mouse a model of human vision that shares fundamental properties of human temporal psychophysics such as Weber adaptation in response to low temporal frequency flicker and illumination-dependent increases in critical flicker frequency as predicted by the Ferry–Porter law.
Acute Effects of Drugs onCaenorhabditis elegansMovement Reveal Complex Responses and Plasticity
Authors: Spensley Mark , Del Borrello Samantha , Pajkic Djina , Fraser Andrew G 
Published: July 2018

AbstractMany drugs act very rapidly — they can turn on or off their targets within minutes in a whole animal. What are the acute effects of drug treatment and how does an animal respond to these? We developed a simple assay to measure the acute effects of drugs on C. elegans movement and examined the effects of a range of compounds including neuroactive drugs, toxins, environmental stresses and novel compounds on worm movement over a time period of 3 hr. We found a wide variety of acute responses. Many compounds cause rapid paralysis which may be permanent or followed by one or more recovery phases. The recoveries are not the result of some generic stress response but are specific to the drug e.g., recovery from paralysis due to a neuroactive drug requires neurotransmitter pathways whereas recovery from a metabolic inhibitor requires metabolic changes. Finally, we also find that acute responses can vary greatly across development and that there is extensive natural variation in acute responses. In summary, acute responses are sensitive probes of the ability of biological networks to respond to drug treatment and these responses can reveal the action of unexplored pathways.
Measuring Genetic Differentiation from Pool-seq Data
Authors: Hivert Valentin , Leblois Raphaël , Petit Eric J , Gautier Mathieu , Vitalis Renaud 
Published: July 2018

AbstractThe advent of high throughput sequencing and genotyping technologies enables the comparison of patterns of polymorphisms at a very large number of markers. While the characterization of genetic structure from individual sequencing data remains expensive for many nonmodel species, it has been shown that sequencing pools of individual DNAs (Pool-seq) represents an attractive and cost-effective alternative. However, analyzing sequence read counts from a DNA pool instead of individual genotypes raises statistical challenges in deriving correct estimates of genetic differentiation. In this article, we provide a method-of-moments estimator of FST for Pool-seq data, based on an analysis-of-variance framework. We show, by means of simulations, that this new estimator is unbiased and outperforms previously proposed estimators. We evaluate the robustness of our estimator to model misspecification, such as sequencing errors and uneven contributions of individual DNAs to the pools. Finally, by reanalyzing published Pool-seq data of different ecotypes of the prickly sculpin Cottus asper, we show how the use of an unbiased FST estimator may question the interpretation of population structure inferred from previous analyses.
Deslocamentos do imperativo visual em recortes do feminino
Authors: Jardim Luciana Abreu 
Published: July 2018

Possíveis aproximações entre Ética e Literatura deveriam ser pensadas a partir dos desdobramentos propostos pelo questionamento da metafísica da presença, de Da gramatologia, ponto central do pensamento derridiano. Para escrever para além da metafísica da presença, abalada por Jacques Derrida, deve-se sair da saturação de visibilidade contemporânea, de modo a buscar novas experiências com a linguagem. A modalidade linguística do semiótico, por exemplo, de acordo com o modelo linguístico de Julia Kristeva (A revolução da linguagem poética), propõe uma experiência na qual aspectos da vida escrita sejam capazes de produzir sentidos sutis, sempre em copresença com a modalidade do simbólico. Nesse contexto teórico, alguns fragmentos textuais de Clarice Lispector, os quais podem ser lidos ao lado do elenco de pensadoras do gênio feminino segundo Kristeva, pavimentam o caminho para algo diferente da timpanização flagrada por Derrida. Assim, este ensaio apresenta uma leitura dos caminhos oblíquos que conduzem às tensões entre a sensação e o pensamento, no cruzamento entre Ética e Estética, sugerindo alguns recortes textuais característicos da singularidade da escrita produzida por mulheres.