bluuebunny/crossref_metadata_2025_split huggingface dataset:
Economic Analysis of a Building Integrated Photovoltaic System Without and With Energy Storage
Authors: Sharma Pooja , Kolhe Mohan , Sharma Arvind 
Published: August 2019

Abstract
A grid-connected solar photovoltaic (PV) system with energy storage can help in overcoming the intermittency as well as in reducing the peak demand on the network. It also benefits in electricity bills savings. In this context, it is significant to examine the appropriate use of local energy storage (i.e. battery) connected with PV for reducing the energy supply from the grid, and also its contribution in peak demand reduction with more emphasis on reduction in annual consumer electricity bill. In this paper, a techno-economic analysis of Building Integrated Photovoltaic (BIPV) system with energy storage has been presented. A typical South Norwegian house, installed with PV, has been considered for identifying annual electricity bill savings as well as economic indicators by deploying appropriate battery capacity. It has been observed that BIPV with energy storage can be beneficial to the consumer both economically and technically, providing incentives for both consumers and investors. The time-wise limits on electricity consumption from the grid supply can also help to make the BIPV house with energy storage more economically attractive as well as near zero energy building.
Precipitation of γ′ Phase of DD6 at Unequal Service Temperatures
Authors: Huang Yao , Li Ning , Zhang Hui , Han Renheng , Zhao Chengzhi , Zhang Hexin 
Published: August 2019

Abstract
In this paper, the DD6 alloys after complete heat treatment were heat-treated at 900, 1000, 1100, 1200, 1300 °C for 1 h, then was air cooled. Microstructures treated by different temperatures were investigationed by OM and FESEM. The microstructures evolution of alloys were estimat using JMatPro software and Image-Pro Plus. Conclusion illustrates the size of γ′ phase increases gradually after the DD6 alloy heat-treated at 900, 1000, 1100 and 1200 °C for 1 h, and the size reaches the maximum after heat-treated at 1200 °C. Most of the γ′ phase dissolves and then precipitate the irregular small γ′ phase, about 0.20 nm after preservation at 1300 °C. The size distribution of the γ′ phase turned into more and more uniform, and the best distribution state is achieved after preservation at 1100 °C; The matrix channel of the microstructure of DD6 widens gradually with temperatures increasing and reaches a maximum value at 1100 °C, about 65 nm. The matrix channel is narrowed gradually, and the most part of γ′ phase has serrated γ/γ ′ phase surface after heat treatment at 1200 °C. After heat preservation at 900 °C, volume fraction of γ′ increases contrast that after complete heat-treatment; after heat-treatment at temperature degree of 1000-1200 °C, γ′ volume fraction decreases gradually; γ′ phase volume fraction increases again at 1300 °C. The different microstructure characteristics of DD6 after heat-treatment at unequal temperatures are obtained, indicating that the using temperature has a significant effect on the microstructure of DD6 alloy.
3D Printer parameters analysis for PCL/PLA filament wire using Design of Experiment (DOE)
Authors: Abdul Haq Reazul Haq , Faizan Marwah Omar Mohd , Abdol Rahman Mohd Nasrull , Haw Ho Fu , Abdullah Haslina , Ahmad Said 
Published: August 2019

Abstract
Fabrication of medical implant using composite Polycaprolactone (PCL) / Polylactic Acid (PLA) through a process of fused filament fabrication (FFF) is the future of medical field. In this study the capabilities of FFF process and optimization of the Parameter was investigated to achieve the 20mm × 20mm × 10mm dimensional accuracy of printed composite material. Design of experiment using technique full factorial with two level design is used to study the interaction of factor which is print temperature (A), height of deposition (B), print speed (C) and travel speed (D). By using DOE, the total 20 run include with 4 center point was investigated by extruding the composite material using 3D printer. The dimension accuracy is tested using flexible measuring machine. From the sample, the ANOVA analysis of variance is divided into 3 responses, length, width and height. Factor model A, C and BD show the significant effect on length and for width response, factor model effected the dimensional accuracy is A, C, AC, and AD. Meanwhile for height respond only factor model A and C show the significant effect on the respond. Based on the analysis, one optimum parameter run is selected among ten of the suggested run. The optimum parameter value consists of 136°C print temperature, 0.12mm deposition of height, 20mm/s printing speed and 22mm/s travel speed. The confirmation run analysis this optimum parameter shows the precise dimension with average margin error below that 15% for length, width and height respond.
Effect of Filler Loading on Properties of Polyurethane/Clay Composites
Authors: Arifin’ A M T , Supri A G , Hassan M F , Rahman M N A , Haq R H A , Taib I , Adzila S 
Published: August 2019

Abstract
This paper discusses about the effected of filler loading on properties of polyurethane/clay composites. Polyurethanes materials have been developed strongly in the world, proving it to be one of the most versatile polymers. Segmented polyurethanes are very versatile materials, which can display properties ranging from very soft thermoset elastomer to strong. The objective of this study is to investigate the behaviour of polyurethane/clay composites, in term of strength, swelling behaviour and morphology properties. Polyurethanes based on diisocyanate molecule with diol were prepared by stoichiometric reaction 1:1 and 1:2 ratios of diphenylmethane diisocyanate (MDI) and polyethylene glaycol (PEG 400). In both ratios, 2%, 4%, 6%, 8%, 10% and 20% of clay were added as filler loading. Polyethylene glaycol (PEG 400) and clay are mixed together to become homogenous around 300 r.p.m. at room temperature for 10 minutes. After that, the solutions mixture with diphenylmethane diisocyanate (MDI) and are mixed again for 15 minutes around 300 rpm. The effect of adding clay was assessed by several testing method; compression test, swelling behaviors, spectroscopy infrared (FTIR) study and scanning electron microscope. Compression test result shows, with increasing percent of clay, the strength are increase for both of the ratio, 1:1 and 1:2. For swelling behaviors, from swelling index, result 1:1 ratio is better than 1:2 ratio. From infrared spectroscopy observation, the clay structure improved the hard segment of polyurethanes/clay composites. SEM micrograph of surface polyurethanes/clay composites observation shows, the structure of cell is homogenous; it is proved that chemical solution and clay are mixed together.
Line balancing synchronization in powder coating workstation: A metal industry case study
Authors: Ho F. H. , S. Abu M. Al-Haqeem Chee , Woo Y. L. 
Published: August 2019

Abstract
In powder coating industry, product over-cured and poor surface finishing are both utmost issues faced by the manufacturer. One of the reasons is due to the poor synchronization between powder coating conveyor speed, number of operators in loading and unloading bay, and variety of products to be powder coated. This study is conducted in a metal industry company located at Johor with powder coating facility. Raw data were collected through documentation and observation such as complete operation activities of the powder coating process, the actual layout of the powder coating workstation. The raw data were then converted into simulation scenario using Arena software to determine the configuration between conveyor speed, number of operator, and consideration of three variants of product (small, medium, big) in order to achieve best synchronization. Next, the obtained findings were validated with the actual industry data. A balanced synchronized matrix is developed in the end of this study which could contribute to enable better understanding of line balancing in powder coating process. Perhaps the findings could be utilized to assist the practitioner in operation planning and productivity improvement
Microbial study of pH sensitive starch based film using agar diffusion method (zone inhibition assay)
Authors: Khairuddin Nozieana , Muhamad Ida Idayu , Abdul Rahman Wan Aizan Wan , Mobin Siddique Bazlul 
Published: August 2019

Abstract
Active and smart packaging is a promising form of food packaging that offers a great economical potential due to consumer demand for a packaging that accommodate a hectic way of life. An antimicrobial film with pH colour indicator (pHF) can be made by incorporating suitable antimicrobial (AM) agent and colour indicator into food package matrices whilst applying a bio switch concept to inhibit the pathogenic microorganisms and respond automatically to changes (external stimuli) in the environment. The present work aimed to study the developed formulation of hydroxyethylcellulose (HEC)/wheat-starch based pHF film in which the active compound, thymol (0.5, 1, 1.5, 2, and 2.5% w/w) and 50:50% w/w bromothymol blue and methyl red (as the colour indicator) against microbial growth. A solution casting method was used in the film preparation while thymol and colourant were incorporated prior to casting. The effect of thymol showed a range of microbial inhibition zones of 16.3 - 26.4% and 22.1 - 39.9% towards E. coli and B. subtilis, respectively. Whilst, a lower inhibition zone of 0.4 - 5.1% was demonstrated for fungus A. niger.
Preparation of a graphene oxide membrane for air purification
Authors: Zou Weiwu , Gu Baoshan , Sun Shiqing , Wang Shidong , Li Xin , Zhao Haoqi , Yang Peiyan 
Published: August 2019

Abstract
Environmental issues such as particulate matter (PM) have become more and more serious because of their detrimental effects on human health. The development of an effective way to remove PM is in high demand. In this study, a graphene oxide (GO) membrane with a large specific surface area and a continuous pore structure was prepared via a coating method. The morphology, composition and structure of the GO membrane were characterized by scanning electron microscopy (SEM), an energy dispersive spectrometer (EDS), X-ray diffraction (XRD), FT-IR spectra, X-ray photoelectron spectra (XPS) and Raman spectroscopy. The removal efficiency for PM and the influence of pollutant concentration and wind velocity on the GO membrane were studied. As a result, when the wind velocity was 0.1 m s−1, the PM2.5 removal efficiency of the GO membrane exhibited the highest efficiency (99.46%) with a low pressure drop (7 Pa) and a high quality factor (QF) of 0.75 Pa−1. The GO membrane maintained a high adsorption performance for a long time. The GO membrane removal efficiency was more significant when the import concentration was higher and the wind velocity was lower. In particular, SEM and EDS clearly revealed that the PM2.5 was successfully captured by the GO membrane. The preparation of the GO membrane involves a simple and pollution-free process, which provides a new way to deal with air pollution.
Fibre based hyperentanglement generation for dense wavelength division multiplexing
Authors: Vergyris Panagiotis , Mazeas Florent , Gouzien Elie , Labonté Laurent , Alibart Olivier , Tanzilli Sébastien , Kaiser Florian 
Published: August 2019

Abstract
Entanglement is a key resource in quantum information science and associated emerging technologies. Photonic systems offer a large range of exploitable entanglement degrees of freedom (DOF) such as frequency, time, polarization, and spatial modes. Hyperentangled photons exploit multiple DOF simultaneously to enhance the performance of quantum information protocols. Here, we report a fully guided-wave approach for generating polarization and energy-time hyperentangled photons at telecom wavelengths. Moreover, by demultiplexing the broadband emission spectrum of the source into five standard telecom channel pairs, we demonstrate compliance with fibre network standards and improve the effective bit rate capacity of the quantum channel up to one order of magnitude. In all channel pairs, we observe a violation of a generalised Bell inequality by more than 27 standard deviations, underlining the relevance of our approach.
Spectral and optical properties of Ag3Au(Se2,Te2) and dark matter detection
Authors: Sánchez-Martínez M-Á , Robredo I , Bidaurrazaga A , Bergara A , Juan F de , Grushin A G , Vergniory M G 
Published: August 2019

Abstract
In this work we study the electronic structure of

Ag

3

AuSe

2

and

Ag

3

AuTe

2

, two chiral insulators whose gap can be tuned through small changes in the lattice parameter by applying hydrostatic pressure or choosing different growth protocols. Based on first principles calculations we compute their band structure for different values of the lattice parameters and show that while

Ag

3

AuSe

2

retains its direct narrow gap at the Γ point,

Ag

3

AuTe

2

can turn into a metal. Focusing on

Ag

3

AuSe

2

we derive a low energy model around Γ using group theory, which we use to calculate the optical conductivity for different values of the lattice constant. We discuss our results in the context of detection of light dark matter particles, which have masses of the order of a keV, and conclude that

Ag

3

AuSe

2

satisfies three important requirements for a suitable detector: small Fermi velocities, meV band gap, and low photon screening. Our work motivates the growth of high-quality and large samples of

Ag

3

AuSe

2

to be used as target materials in dark matter detectors.
Estimating the Prevalence of Alcohol Dependence in Europe Using Routine Hospital Discharge Data: An Ecological Study
Authors: Roberts Emmert , Clark Gayle , Hotopf Matthew , Drummond Colin 
Published: August 2019

Abstract

Aims
This study aims to explore the feasibility of using routine hospital discharge data, at the level of countries within Europe, to estimate the general population prevalence of alcohol dependence (AD).

Methods
We utilised the European Core Health Indicators data tool to extract the annual rate of hospital discharges due to any wholly attributable alcohol condition as defined by the ICD-10. For those counties with data available, we systematically searched Medline, EMBASE, PsychINFO and Google for studies reporting an estimate of the prevalence of AD from national cross-sectional surveys. We compared these prevalence estimates with those developed from prediction models based on hospital discharge data.

Results
The rate of hospital discharges due to any condition from the F10 diagnostic category (mental and behavioural disorders due to alcohol) was moderately correlated with AD prevalence (r = 0.56), while the rate due to any condition from the K70 diagnostic category (alcoholic liver disease) was weakly correlated with AD prevalence (r = 0.21). Two-thirds of the estimates from cross-sectional surveys were not significantly different to those generated using the F10 discharge rate prediction model.

Conclusions
Country-level AD prevalence estimates generated using annual F10 hospital discharge rates are likely to provide information of some utility, particularly when limited other sources of information are available or when examining relative trends over time or between regions. There is, however, currently insufficient evidence to make a definitive recommendation to use hospital discharge data to estimate the absolute prevalence of AD per country in Europe.
A new cosmological argument from grounding
Authors: Deng Duen-Min 
Published: August 2019

Abstract
This paper presents a new cosmological argument based on considerations about grounding. I argue that, by assuming three plausible principles about grounding, we can construct a cosmological argument for the existence of a unique ungrounded being that ultimately grounds everything else. At the end of the paper I consider two possible objections, and offer my replies to them.
Exploring the Neuropsychological Profile of a Clinically Referred Sample of Children in Mexico
Authors: Giudicessi A , Visconti V D , Zenit Aldana A , Ibarra C 
Published: August 2019

Abstract

Objective
The Wechsler Scale of Intelligence for Children (WISC-IV) is one of the most commonly used intelligence tests for children. A Spanish version of the WISC-IV exists, but a limited amount of published information is available on its utility when assessing pediatric clinical populations. Furthermore, little published research utilizes the WISC-IV in Spanish speaking populations residing outside the US. This study seeks to present the neuropsychological profile of a clinically referred sample of children residing in Mexico.

Participants and Method
The present study included 35 participants (15 females and 20 males, M age of 9.26 years, SD = 1.69). Participants were referred to clinic sites affiliated with the neuropsychology master’s program at Benemérita Universidad Autónoma de Puebla (BUAP). Participants were referred for assessment due to persistent academic/behavior difficulties and were included in this study if they were between the ages of 7 and 12, with no history of a psychiatric disorder. All participants were administered the WISC-IV. Procedures were approved by the ethics committee at BUAP. Informed consent was obtained prior to evaluation.

Results
Descriptive statistics show a Full-Scale IQ average (FSIQ) mean of 75.40 (SD = 12.42). Highest index scores were on Perceptual Reasoning (PRI) (M = 84.94, SD = 16.22) and Processing Speed (PSI) (M = 81.34, SD = 12.96) and lowest index score were on working memory (WMI) (M = 76.97, SD = 14.64) and Verbal Comprehension (VCI) (M = 76.54, SD = 12.42). Independent T-Tests showed no significant differences between genders.

Conclusions
Our results show a low average IQ for the sample but also identifies strengths in certain indices and specific subtests within the WISC-IV that can add rich details in the comprehension of cognitive functioning in this sample. In the future, we plan to continue the growth of our study via the utilization of a control group to compare with the clinical sample.
Effects of Cultural and Educational Variables on a Computerized Continuous Performance Task: the EMBRACED CPT
Authors: Ibanez-Casas I , Jannoo D , Denardis D , De la Cruz F , Santiago S , Lozano-Ruiz A , Daugherty J 
Published: August 2019

Abstract

Objective
The continuous performance tests (CPTs) are the gold standard to assess vigilance or sustained attention. Many studies have shown that educational level is significantly associated with performance on the CPTs. However, very few studies have made comparisons that included cultural factors (Miranda et al, 2008). Given the breadth of educational systems in different parts of the world, it could be expected that the effect of educational level will vary depending on the culture of origin. The aim of this study was to examine the effect of education on performance on a CPT task in 3 ethnically diverse groups (Hispanic, Non-Hispanic and Spanish).

Participants and Method
This study includes 57 participants in the EMBRACED project: 12 Hispanic Americans, 26 non-Hispanics Americans, and 19 Spaniards (8.3%, 30% and 57% with high education respectively). Educational level was defined as high (university degree and above) or low (less than a university degree). The EMBRACED CPT is computerized and demands the participant to touch the iPad screen each time a target is presented. In 3 blocks of 100 stimuli each, the number of hits, omissions, and commissions is recorded.

Results
A mixed between-within subjects analysis of variance was conducted to compare scores in the three blocks of the CPT in relation to the three cultural groups and by education levels. Results showed no interaction effects between cultural groups and education, and no main effects of education for any of the studied variables. However, there was a significant main effect for cultural group for hits (F = 4.676, P = .014) and omissions (F = 5.614, p = .006).

Conclusions
The overall results for education in this study were not significant and would need further study. The variability in cultural group revealed a consistent effect across all studied variables. The non-Hispanics scored higher in hits and the Spaniards had more omissions. These results justify the need for cultural adaptation of neuropsychological measures.

References
Miranda, M. C., Sinnes, E. G., Pompeia, S., & Francisco Amodeo Bueno, O. (2008). A comparative study of performance in the Conners' Continuous Performance Test between Brazilian and North American children. Journal of Attention Disorders, 11(5), 588-598.
Normative Data for the Halstead Category Test in a Spanish-Speaking Adult Population Living in the U.S./México Border Region
Authors: Morlett Paredes A , Carrasco J , Cherner M , Umlauf A , Rivera Mindt M , Suarez P , Artiola i Fortuny L , Franklin D R , Heaton R K , Marquine M J 
Published: August 2019

Abstract

Objective
To provide norms applicable to Spanish-speakers living in the US- Mexico border region for the Halstead Category Test, a test of executive function.

Participants and Method
Healthy Spanish-speakers (n = 252) were recruited from the US–Mexico border regions (Age: M = 37.3, SD = 10.2, range 19-60; Education: M = 10.7, SD = 4.3, range 0-20; 58% female). Participants completed the Category Test as part of a larger neuropsychological test battery. Relationships between demographic variables and raw error scores were assessed using Spearman and Wilcoxon Rank-sum tests. Demographically corrected T-scores for the Category Test were normed using fractional polynomial equations accounting for age, education, and sex. For comparison, T-scores were also computed for the Spanish-speaking normative sample using published norms for English-speaking non-Hispanic Whites and African Americans, which were also adjusted for age, education and sex. Impairment rates based on -1SD (T &lt; 40) were calculated using both, published and current, norms.

Results
Older age was significantly associated with higher number of errors (Spearman ρ = 0.32, p &lt; .001) and higher education was associated with lower number of errors (Spearman ρ = -0.52, p &lt; .001), with no other significant demographic effects. Applying non-Hispanic norms resulted in overestimation of impairment rates in the Spanish-speaking sample (impairment rate: 48% with White norms and 27% with African American norms). This pattern was evident across levels of education except in participants with 13+ years of education, where rates of impairment using African American norms were comparable to those based on the newly developed norms.

Conclusions
The present study is the first to develop norms for the Category test in a sample of Spanish-speakers in the US-Mexico border region. These norms will provide tools for the assessment of executive function in this population. Research concerning generalizability of norms to other Spanish-speaking populations is needed.