bluuebunny/crossref_metadata_2025_split huggingface dataset:
Molecular Dynamics Simulation on Dielectric Constant and Thermal Conductivity of Crosslink Epoxy/functionalized graphene Nano-composites
Authors: Shen L , Zou L , Ding M , Zhao T , Zhang L , Li Q 
Published: March 2020

Abstract
Nanoscale graphene fillers are expected to enhance electronic and thermal properties of polymers owing to the superior performances of graphene. In this paper, dielectric constant and thermal conductivity of crosslink epoxy/functionalized graphene nano-composites were investigated using molecular dynamics simulations. The results show that graphene nanoplatelets (GN) can improve performances of polymer matrix, covalent functional groups can further enhance this improvement. Among different functional groups, hydroxyl is more effective than carboxyl and amino in reducing dielectric constant. Correspondingly, the introduction of graphene fillers also leads to an increase in thermal conductivity. GN and amino functionalized GN raise thermal conductivity of crosslink epoxy by 30.69% and 44.86% respectively. All the results demonstrate that functionalization of GN can suppress polarization and enhance thermal transportation.
Preparation and Characterization of Anatine TiO2/Expanded Graphite with High Expansion Volume
Authors: Qi Lai , Fuchang Peng , Chanyu i Zhong , Xueping Luo , Lei Liu , Chuanhai Xiao 
Published: March 2020

Abstract
Element of Ti was introduced to expandable graphite surface by Sol-gel method; TiO2/expanded graphite was prepared after expansion of high temperatures. Detection by scanning electron microscope(SEM), X-ray diffraction(XRD), energy disperse spectroscopy(EDS) and differential scanning calorimetry(DSC) to semples, the results were founded: The better process conditions with high expansion volume are as follows: graphite that particle size is more than 180μm, expansion temperature is about 650°C-750°C. The contents of Ti in compounds of anatine TiO2/expanded graphite can be reached 3.16%; the volume of compounds can be reached 234ml/g. The results showed that the lower temperature and smaller particle size of graphite is benefit for anatine type of TiO2, but higher temperature is good to high expansion volume. The preparation condition should be balanced with crystal type, heat loss and expansion volume.
Theoretical Analysis of Two Evaporator Configurations for a Conventional Refrigerator Coupled To a Phase Change Material
Authors: Berdja M , Yahi F , Tetbirt A , Ouali M , Djebiret M A , Mokrane M 
Published: March 2020

Abstract
In this paper, we present the study and development of prototypes of refrigeration systems that operate more efficiently and consume less electrical energy, and this based on the use of Phase change materials (PCM) as thermal energy storage (TES). These materials have the ability to store thermal energy on its latent heat form, which is produced during off-peak periods, and then release this thermal energy to the consumer during the desired period or during periods when electrical demand is high. The effect of phase change material on the energy performance of a conventional refrigerator has been highlighted for two different evaporator configurations; a flat evaporator and a ventilated finned evaporator. An analysis to select the adequate phase change material (PCM) as well as its arrangement to be integrated into the refrigerator, and the mechanism by which the PCM affects the refrigerator operating conditions according to the type of evaporator has also been discussed.
The study of a small-sized Thai chili paste supply chain
Authors: Srilarp J , Ongkunaruk P 
Published: March 2020

Abstract
The highly competitive lifestyle results in the increasing demand for ready to eat food. In Thailand, chili paste is a traditional food that has been passed down from generation to generation. It plays an important role in Thai meals and becomes more popular in convenience stores and hypermarkets. The objectives of this study are to explore the current supply chain of a small-sized Thai chili paste enterprise, to analyze the business processes and identify the problem and provide the recommendation for improvement. First, we observe and perform an in-depth interview of the owner and staff for realizing the business process. Then, the result is analyzed by using the Integration Definition for Function Modeling (IDEF0) to show the existing stakeholders and current key activities in Thai chili paste. The major problems are lack of data collection, low forecast accuracy, lack of inventory management, and low productivity. The proper controls are proposed. Finally, our guidelines could enhance the productivity of other small-sized enterprises which can increase the potential capability for domestic and international markets.
The improvement of the high value-added supply chain: a cordyceps beverage case study
Authors: Poochinya P , Ongkunaruk P 
Published: March 2020

Abstract
A healthy food trend is becoming popular which makes people become more aware of taking care of themselves. This causes the growth of healthy business phenomena such as supplements and herb in Thailand. Cordyceps which is known as “winter worm summer grass” is a famous Chinese herbal medicine and very expensive because it is rare. People believe that it provides benefits for enhancing health and boosting energy. Today Thai farmers and entrepreneurs can cultivate cordyceps by themselves resulting in widespread use and lower the price. The objective of this research is to analyze a cordyceps beverage supply chain of a small-sized entrepreneur using Integration Definition for Function Modeling (IDEF0). It explains the overall flow of business and related activity of cordyceps beverage. Then we conduct an analysis of the current problems and recommend how to improve the efficiency of the supply chain. Currently, there is a lack of systematic data collection, no proper KPI and inventory policy and low forecast accuracy. We recommend the entrepreneur to use the spreadsheet for forecasting and record data, create KPI to evaluate performance, set standard and target. Establish an inventory policy to manage material and evaluate supplier’s performance. We hope our research will promote the entrepreneur to stay competitive in the dynamic market.
The use of physical simulation to evaluate thermal properties of food containers in cold chain logistics
Authors: Chaitanoo N , Ongkunaruk P , Leingpibul D 
Published: March 2020

Abstract
Cold chain logistics has gained significant attention among all stakeholders in the food and pharmaceutical delivery industries due to the stricter food safety enforcement and tighter quality assurance [1-3]. Most cold chain logistics providers seek to determine the right packaging that ensures temperature control delivery in order to gain and/or retain their competitive advantage in the market place. Nowadays, materials such as Polystyrene Foam (PS), Polyethylene-Nylon (PE-Nylon), and Vacuum Insulation Panels (VIP) are widely used in the construction of delivery boxes. The objective of this study is to use a physical simulation approach to determine which materials are most suitable for delivery boxes. First, three delivery boxes with different materials (PS, PE-Nylon and VIP) were used as test subjects in this study. Second, the cold chain delivery process was simulated for each box and the temperature at each critical point had been measured throughout the delivery process. Third, data analysis was performed by comparing the temperature pattern among all three subjects. The thermal conductivity data for each box was calculated by mathematic equations to help interpret the results. The result showed that the box made from VIP material showed the best thermal resistance. The application of this thermal conductivity estimation procedure might help guide food delivery related practitioners to determine the best materials for their delivery box equipment and the findings might help effectively and efficiently improve their delivery services.
Influence of ethylene glycol treatment on conductivity and stability of poly(3, 4-ethylenedioxythiophene) polystyrene sulfonate coated cotton yarn
Authors: Pattanarat K , Petchsang N , Jaisutti R 
Published: March 2020

Abstract
Recently electronic textiles have received much interest due to their board applications in wearable electronics such as solar energy, physical and chemical sensors. In this work, the conductive cotton is prepared by dip coating poly(3, 4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) on commercial cotton yarn. The electrical conductivity of conductive cotton can be enhanced by secondary treated PEDOT:PSS with ethylene glycol (EG). The EG-treated conductive cotton exhibits lower resistance of 600 Ω/cm by comparison with the pristine PEDOT:PSS coated cotton yarn (110 kΩ/cm). The electrical resistances of the conductive cottons are also investigated as a function of temperature and humidity. The pristine conductive cotton increases in electrical resistance as the temperature increases, while there is no resistance change for EG-treated conductive cotton. SEM images show well distribute of PEDOT:PSS on the cotton yarn surface. FTIR analysis also confirms the residue of PEDOT:PSS coated on cotton yarn. In addition, the treated conductive cotton exhibit high stability under air as they show slightly change in electrical resistance after keeping for 30 days.
Biodegradable poly(butylene adipate-co-terephthalate)/wheat gluten blends: Effect of PBAT modification on morphological, mechanical and water adsorption properties
Authors: Saraphat K , Phaorung R , Saengsuk U , Hemsri S 
Published: March 2020

Abstract
Biodegradable polymer blends between poly(butylene adipate-co-terephthalate) (PBAT) and wheat gluten (WG) were prepared in various ratios of 70:30, 60:40 and 50:50 by weight. Modified PBAT with maleic anhydride (PBAT-g-MA) was used as a compatibilizer in this work. Morphological, mechanical and impact properties as well as water adsorption of the PBAT/WG blends with and without the compatibilizer were investigated. Scanning electron microscopic (SEM) analysis revealed that the PBAT/WG blends with PBAT-g-MA showed a better compatibility between PBAT and WG phases. Moreover, addition of the compatibilizer into the blends significantly improved tensile strength, elongation at break and impact strength compared to the PBAT/WG blends without compatibilizer. Furthermore, water adsorption of the blends with compatibilizer is lower than that of uncompatibilized PBAT/WG blends.
Applicability of density functional and wave function theories combined with the three-dimensional reference interaction site model self-consistent field method to the d–d transitions of a transition metal aqua complex
Authors: Yang C , Watanabe Y , Yoshida N , Nakano H 
Published: March 2020

Abstract
The applicability of density functional theory (DFT) and wave function theory combined with the three-dimensional reference interaction site model self-consistent field method to the d–d transitions of transition metal aqua complexes was examined using [Cr(H2O)6]3+ in aqueous solution as an example. DFTs with hybrid functionals, multiconfigurational self-consistent field followed by perturbation theory, and coupled-cluster singles and doubles (CCSD) followed by the equation of motion CCSD, gave reasonable d–d transition energies.
The Reference Interaction Site Model Integrated Calculator (RISMiCal) program package for nano- and biomaterials design
Authors: Yoshida Norio 
Published: March 2020

Abstract
Solvent molecules play an essential role in various chemical, physical, and biological processes in solution phase. The reference interaction site model (RISM) and its three-dimensional extension (3D-RISM) are powerful tools for considering the solvation effect on chemical reactions, biological functions, and structure formation upon coupling with the quantum chemistry electronic structure theory and/or molecular dynamics simulation technique. We recently developed the reference interaction site model integrated calculator (RISMiCal) program package based on the RISM and 3D-RISM theories, which has interfaces for external programs such as GAMESS and Tinker. The features of the RISMiCal package are reviewed here.
Non-destructive assessment of moisture content and modulus of rupture of sawn timber Hevea wood using near infrared spectroscopy technique
Authors: Ruangkhasap S , Noypitak S , Noknoi W , Terdwongworakul A 
Published: March 2020

Abstract
The sawn timber Para rubber (Hevea brasiliensis) wood is an important wood product accounting for the highest export value of Thailand. The objective of this research was to build a prediction model of moisture content and modulus of rupture of sawn timber Hevea wood samples using desktop near infrared spectrometer. The timber samples were collected from the southern region and eastern region of Thailand and scanned using Fourier transform near infrared (FT-NIR) spectrometer in a range of 12489–3594 cm−1 (800-2700 nm) in diffuse reflectance mode. Then they were determined for moisture content and modulus of rupture (MOR) following ASTM. The predictive models were built by the partial least squares regression (PLSR). The result showed high performance in prediction of moisture content with correlation coefficient of prediction, Rp = 0.89 and root mean square error of prediction; RMSEP = 0.70%db. Regarding a predictive model of modulus of rupture, the results showed fair performance giving Rp = 0.78 and RMSEP = 17.11 MPa. Therefore, using near-infrared spectroscopy technique to predict the moisture content and strength based on the modulus of rupture of timber Hevea wood offered a rapid and non-destructive measurement as an alternative to the destructive checking the quality of sawn timber Hevea wood.
The exchange bias effects of CoFe2O4@NiO nanofibers fabricated by electrospinning
Authors: Dai Jianfeng , Feng Wei , Cheng Chen , Wen Xinchao 
Published: March 2020

Abstract
Exchange bias effect(HEB) systems offer various technological application, which has been playing a key role in spintronics. CoFe2O4@NiO with core–shell nanostructure has been synthesized through coaxial electronspinning. The exchange bias of CoFe2O4@NiO is different in the different molar ratio of core to shell, when the ratio of core to shell is 1:3, its maximum value is of 763 Oe at 5 K. Also, the values of Mr, Ms, Mr/Ms and Hc at 300 K and 5 K are first increases then decreases due to the molar ratio of NiO, its pinning effect play a vital role. Its anisotropy and magnetic domain structure have been primarily studied. The improvement of Hc will influence the HEB, which has a significant application value in spintronic devices.
Stability, reliability, upscaling and possible technological applications of kesterite solar cells
Authors: Larramona G , Choné C , Meissner D , Ernits K , Bras P , Ren Y , Martín-Salinas R , Rodríguez-Villatoro J L , Vermang B , Brammertz G 
Published: March 2020

Abstract
We review the stability and reliability results of kesterite (Cu2ZnSn(S,Se)4, CZTSSe)-based solar cells and we complete the reviewed data with additional as yet unpublished data on these matters. We also review published and new data on upscaling and the possible technological applications for this material. Kesterite material is composed of mainly earth-abundant elements and is therefore very attractive for large-scale applications. Stability data are so far quite scarce and the main results are the accelerated aging tests carried out for CZTSSe monograin technology, as well as yet unpublished data on long indoor and outdoor irradiance tests carried out on thin-film CZTSSe technology deposited by a wet processing method. On upscaling and technological applications we point out the works on three main large-scale photovoltaic technologies (monograin, in-line vacuum thin film, and wet-deposited thin film), as well as some work on water-splitting applications.
Cryoprecipitate Utilization Patterns Observed With a Required Prospective Approval Process vs Electronic Dosing Guidance
Authors: Kruse Robert L , Neally Melissa , Cho Brian C , Bloch Evan M , Lokhandwala Parvez M , Ness Paul M , Frank Steven M , Tobian Aaron A R , Gehrie Eric A 
Published: March 2020

Abstract

Objectives
We evaluated the impact of electronic medical record (EMR)–guided pooled cryoprecipitate dosing vs our previous practice of requiring transfusion medicine (TM) resident approval for every cryoprecipitate transfusion.

Methods
At our hospital, cryoprecipitate pooled from five donors is dosed for adult patients, while single-donor cryoprecipitate is dosed for pediatric patients (defined as patients &lt;50 kg in weight). EMR-based dosing guidance replaced a previously required TM consultation when cryoprecipitate pools were ordered, but a consultation remained required for single-unit orders. Usage was defined as thawed cryoprecipitate; wastage was defined as cryoprecipitate that expired prior to transfusion.

Results
In the 6 months prior to intervention, 178 ± 13 doses of pooled cryoprecipitate were used per month vs 187 ± 15 doses after the intervention (P = .68). Wastage of pooled cryoprecipitate increased from 7.7% ± 1.5% to 12.7% ± 1.4% (P = .038). There was no change in wastage of pediatric cryoprecipitate doses during the study period. These trends remained unchanged for a full year postimplementation.

Conclusions
Electronic dosing guidance resulted in similar cryoprecipitate usage as TM auditing. Increased wastage may result from reduced TM oversight. Product wastage should be balanced against the possibility that real-time audits could delay a lifesaving therapy.
Xylem anatomy needs to change, so that conductivity can stay the same: xylem adjustments across elevation and latitude in Nothofagus pumilio
Authors: García-Cervigón Ana I , Fajardo Alex , Caetano-Sánchez Cristina , Camarero J Julio , Olano José Miguel 
Published: March 2020

AbstractBackground and AimsPlants have the potential to adjust the configuration of their hydraulic system to maintain its function across spatial and temporal gradients. Species with wide environmental niches provide an ideal framework to assess intraspecific xylem adjustments to contrasting climates. We aimed to assess how xylem structure in the widespread species Nothofagus pumilio varies across combined gradients of temperature and moisture, and to what extent within-individual variation contributes to population responses across environmental gradients.MethodsWe characterized xylem configuration in branches of N. pumilio trees at five sites across an 18° latitudinal gradient in the Chilean Andes, sampling at four elevations per site. We measured vessel area, vessel density and the degree of vessel grouping. We also obtained vessel diameter distributions and estimated the xylem-specific hydraulic conductivity. Xylem traits were studied in the last five growth rings to account for within-individual variation.Key ResultsXylem traits responded to changes in temperature and moisture, but also to their combination. Reductions in vessel diameter and increases in vessel density suggested increased safety levels with lower temperatures at higher elevation. Vessel grouping also increased under cold and dry conditions, but changes in vessel diameter distributions across the elevational gradient were site-specific. Interestingly, the estimated xylem-specific hydraulic conductivity remained constant across elevation and latitude, and an overwhelming proportion of the variance of xylem traits was due to within-individual responses to year-to-year climatic fluctuations, rather than to site conditions.ConclusionsDespite conspicuous adjustments, xylem traits were coordinated to maintain a constant hydraulic function under a wide range of conditions. This, combined with the within-individual capacity for responding to year-to-year climatic variations, may have the potential to increase forest resilience against future environmental changes.
Sources of Multidrug Resistance in Patients With Previous Isoniazid-Resistant Tuberculosis Identified Using Whole Genome Sequencing: A Longitudinal Cohort Study
Authors: Srinivasan Vijay , Ha Vu T N , Vinh Dao N , Thai Phan V K , Ha Dang T M , Lan Nguyen H , Hai Hoang T , Walker Timothy M , Thu Do D A , Dunstan Sarah J , Thwaites Guy E , Ashton Philip M , Caws Maxine , Thuong Nguyen T T 
Published: March 2020

Abstract

Background
Meta-analysis of patients with isoniazid-resistant tuberculosis (TB) given standard first-line anti-TB treatment indicated an increased risk of multidrug-resistant TB (MDR-TB) emerging (8%), compared to drug-sensitive TB (0.3%). Here we use whole genome sequencing (WGS) to investigate whether treatment of patients with preexisting isoniazid-resistant disease with first-line anti-TB therapy risks selecting for rifampicin resistance, and hence MDR-TB.

Methods
Patients with isoniazid-resistant pulmonary TB were recruited and followed up for 24 months. Drug susceptibility testing was performed by microscopic observation drug susceptibility assay, mycobacterial growth indicator tube, and by WGS on isolates at first presentation and in the case of re-presentation. Where MDR-TB was diagnosed, WGS was used to determine the genomic relatedness between initial and subsequent isolates. De novo emergence of MDR-TB was assumed where the genomic distance was 5 or fewer single-nucleotide polymorphisms (SNPs), whereas reinfection with a different MDR-TB strain was assumed where the distance was 10 or more SNPs.

Results
Two hundred thirty-nine patients with isoniazid-resistant pulmonary TB were recruited. Fourteen (14/239 [5.9%]) patients were diagnosed with a second episode of TB that was multidrug resistant. Six (6/239 [2.5%]) were identified as having evolved MDR-TB de novo and 6 as having been reinfected with a different strain. In 2 cases, the genomic distance was between 5 and 10 SNPs and therefore indeterminate.

Conclusions
In isoniazid-resistant TB, de novo emergence and reinfection of MDR-TB strains equally contributed to MDR development. Early diagnosis and optimal treatment of isoniazid-resistant TB are urgently needed to avert the de novo emergence of MDR-TB during treatment.
Hierarchical Identity-Based Signature in Polynomial Rings
Authors: Yang Zhichao , Duong Dung H , Susilo Willy , Yang Guomin , Li Chao , Chen Rongmao 
Published: March 2020

Abstract
Hierarchical identity-based signature (HIBS) plays a core role in a large community as it significantly reduces the workload of the root private key generator. To make HIBS still available and secure in post-quantum era, constructing lattice-based schemes is a promising option. In this paper, we present an efficient HIBS scheme in polynomial rings. Although there are many lattice-based signatures proposed in recent years, to the best of our knowledge, our HIBS scheme is the first ring-based construction. In the center of our construction are two new algorithms to extend lattice trapdoors to higher dimensions, which are non-trivial and of independent interest. With these techniques, the security of the new scheme can be proved, assuming the hardness of the Ring-SIS problem. Since operations in the ring setting are much faster than those over integers and the new construction is the first ring-base HIBS scheme, our scheme is more efficient and practical in terms of computation and storage cost when comparing to the previous constructions.