bluuebunny/crossref_metadata_2025_split huggingface dataset:
Experimental and Numerical investigation to Maintain the inside temperature of wooden Transport/storage box by incorporating Phase Change Material
Authors: Srusti Bhargava , Rajat S , Amar K , Daksh S , Shyam Kumar M.B. 
Published: October 2020

Abstract
Transport/storage box is to be used for storing the inorganic material under control environment. The main aim of this storage box is maintain the inside temperature during the transport in the production plant or customer place for the short duration of 1 to 2hrs. In general, during day or night times the interior temperature of storage box increases or decreases than the ambient temperature. This change in temperature can make the stored inorganic materials hazardous. A latent heat based storage system plays a major role in removing unwanted heat & maintaining the inside temperature of the storage box. Numerical and experimental studies were conducted to investigate the role of PCM in maintaining the temperature inside the wooden storage. Storage box is made by plywood and avoid the heat transfer from ambient. the sides and bottom walls are insulated by pasting the thermocol. Experimentation is carried out on the wooden box with no PCM and then with PCM. The operating conditions like solar radiation and ambient temperature is same for both the cases. PCM is placed horizontally on the Aluminium mesh, which is seated above the thermocol padding on top side. The experimental results showed that the box air temperature in the case of without PCM could be raised 42°C depending on how long the box is exposed to sunlight. In case of the wooden box with PCM the inside temperature of 37°C could be maintained for nearly one hour. Considering the same boundary conditions employed in experiments like sun radiation, ambient temperature, a 3D transient numerical simulation is carried out using ANSYS FLUENT. HYPERMESH is used for meshing the solid and fluid domain. Inside air and outside air is considered as fluid domain in the simulation. Both the experimental and numerical results were in variation with 1°C.
Sustainable Energy Solutions for Community Housing
Authors: Kamesh M.R. , Girish Kumar G S , Kiran C 
Published: October 2020

Abstract
With increasing population, it is resulting in faster depletion of combustible resources for energy, hence it is needed to implement renewable resources to cater to energy demands of community housings for a sustainable future. Our work integrates renewable resources like solar, wind along with grid energy to provide a hybrid system, to cater to the above stated energy needs. The above integration is done with the help of trial version of an energy software known as HOMER Energy Pro, which is used for microgrid and any dispersed power generation system planning and its effective development. This helps decide the best system configuration based on the geographic location and resources available, leading us to provide with a sustainable hybrid system solution for 250 average 2 BHK houses for the best possible economy and efficiency with a better future scope. Good improvement in Carbon Credit is seen.
Bamboo materials in cement, geopolymer and reinforced concrete as sustainable solutions for better tomorrow
Authors: Prem Kumar V , Vasugi V 
Published: October 2020

Abstract
It’s well known that due to increase in population and abundant use of materials, there is a scarcity of materials in the construction industry. In this modern era, people prefer to have a modern construction which made usage of conventional building materials abundantly. Though increase in the usage of these materials leads to the scarcity, it also opens way for an unsustainable environment. In order to overcome this both scarcity and environmental issue and to develop an eco-friendly environment, many researchers were going on to replace these building materials by any other natural material. Bamboo is one of the exact alternative materials to be replaced in the construction industry because of its mechanical and chemical properties. Bamboo has a major application in the construction industry and used in roofs, flooring, foundations, trusses etc. Bamboo is preferred as the best sustainable material and suggested for low cost housing projects. In this paper all the physical and mechanical properties of bamboo reinforced structural elements, influence of bamboo materials in cement and geopolymer concrete is reviewed.
Multiple Reactor System for Biohydrogen And Bioethanol Production
Authors: Maanav Charan K S , Shyam Kumar M B , Harish R 
Published: October 2020

Abstract
Hydrogen gas has proven to be an ideal green fuel. Its use is limited at present due to inefficient and harmful methods of production like steam-methane reformation and coal gasification. Systems that utilize hydrogen as a fuel can be considered practical only with the development of better, cost-efficient methods of its production. This study focuses on efficient mass production of bio-hydrogen (and bio-ethanol as a byproduct) for commercial utilization with a theoretical multiple reactor system. The process involves culturing of modified photosynthetic algae (such as Chlamydomonas reinhardtii) in bioreactors for bio hydrogen production. This process produces some waste algal cells. These can be sent to subsequent reactors for production of bio-ethanol by fermentation. Also, the waste algal cells need to undergo pyrolysis before the fermentation. Hydrogen is produced in this process too. All these factors put together improve the overall yield of the complete process and reduce its cost substantially. Though the model is theoretical, it can be adapted for commercial production of hydrogen. The hydrogen can, in turn, be used as fuel for powering fuel cells which have zero emission and hence, are environment-friendly.
Adoption of Integrated Solar System with Thermic fluid working medium for Parboiling Rice Mills in Tamilnadu
Authors: Vijayaraju K. , Bakthavatsalam A.K. 
Published: October 2020

Abstract
Tamilnadu is having more than 3000 rice processing or manufacturing units popularly known as Rice Mills. The typical Rice Mills are energy intensive and huge quantity of waste generation sector especially in sorting contaminants, parboiling process and husk removal. The two major process in the boiled rice manufacturing industry are Parboiling and Drying of paddy, in which steam is used as the thermal energy source through rice husk/firewood boilers having SEC(t) of 195- 280 kg/ton of paddy. Therefore Parboiled rice processing is considered to be water and energy intensive and therefore affects the environment significantly. The thermal energy consumption for par-boiled rice process is 2800- 3800MJ/ton paddy, of which 20-30% is for Parboiling process and steaming process and 60 -70% for paddy drying process. Several attempts were made already to adopt solar system as an alternative source of thermal energy which has been trailed for hot water and hot air generation separately. These approaches had resulted in increase in high investment with very low rate of return and resulted as a non attractive in economic terms. Hence, this study has been focused on study of thermal energy requirement of the above processes of rice mill and to check the viability of adoption of an integrated solar thermal system with thermic fluid as working medium. The expected outcomes of this study will be reduction of SEC(t) to be less than 100 kg/ton of paddy to null value and also to make carbon neutral.
A set of data on retrospective grain yield for neural network modeling
Authors: Rogachev A F , Melikhova E V , Belousov I S 
Published: October 2020

Abstract
Theoretical, methodological and applied aspects of creating a database (DB) of long-term retrospective information about the yield of grain crops are considered. The database is designed for statistical processing and modeling of multi-year data. Statistical information on annual levels of grain yield is the basis for planning, forecasting, management and optimization of agricultural production. To implement these tasks and their information support, we use design methods and models that allow us to build relational databases that provide statistical and neural network modeling of interannual variability of yield levels. The data storage format (*.csv) is justified, which provides in-depth processing and statistical analysis using built-in Python libraries. The review statistical analysis of productivity on the example of grain crops grouped by annual intervals is presented, and their features are revealed.
Estimation and forecasting of food security based on fuzzy cognitive approach
Authors: Rogachev A F , Antamoshkina E N , Melikhova E V , Pieshenko T V , Belousov I S 
Published: October 2020

Abstract
The analysis of a set of groups of factors that form the food security (FS) of the state and its subjects is carried out, and an analytical review of known mathematical methods, as well as fuzzy models for their assessment is performed. The software tools for fuzzy cognitive modeling of the integral level of PB are justified. The key concepts of ensuring and evaluating FS are generalized and numerical estimates of their mutual influence are obtained based on a fuzzy cognitive approach. Along with the main groups of concepts «Production-Consumption-Stocks-Imports» listed in the national «Food security Doctrine», the constructed cognitive model also provides for accounting for additional ones. One of these factors-concepts is «Ecology», by which the authors understand the linguistic meaning of the integral level of the ecological state of the environment. The constructed cognitive map takes into account 11 basic concepts. It is shown that the advantage of the mathematical apparatus of impulse cognitive modeling, selected for research and implemented on a computer, is the possibility of system forecasting the development trends of the systems under study and the results of management decisions. In addition, it becomes possible to identify non-obvious consequences that are difficult to predict by expert method when the number of factors taken into account increases. The results of the analysis, obtained mainly in linguistic terms, are approximate due to the fuzzy nature of the evaluation scales used and reflect only the main trends in the development of the simulated SES. The results obtained allow us to justify a set of measures for the development and implementation of organizational and economic measures for the implementation of the state policy to ensure food and environmental security of the region.
Logical architecture for green technology applications in Roehren-und Pumpenwerk BAUER GmbH (Austria)
Authors: Roiss O , Melikhov V V , Medvedeva L N 
Published: October 2020

Abstract
The research shows that global climate change and population growth increase the pressure on the planet’s natural resources, especially water and land resources. These statistics reveal the state, dynamics and prospects of agricultural development, the use of agricultural land in the EU and Austria. Data on the use of different types of irrigation by Austrian farmers are provided. The use of Austrian irrigation technology in world agriculture with GPS navigation, irrigation programming function based on data obtained using smart controllers, making it easier for the farmer to predict the future crop yield and consumption of water and energy resources. It is shown that the aspiration of modern companies, such as Roehren-und Pumpenwerk BAUER GmbH (Austria), to use green technologies is responsible behaviour before the future generations of the planet Earth.
Review of modern technologies intellectual decision support in the reclamation of agricultural crops
Authors: Tokarev K E , Lebed N I , Nekrasova T N , Popova O V 
Published: October 2020

Abstract
According to the “Strategy for scientific and technological development of the Russian Federation “and within the framework of the “Digital agriculture” program, in the coming years, one of the priority areas of development is the transition to highly productive agro-aquatic farming. The key vector for the development of scientific and technological progress in the agro-industrial complex is to improve the management of irrigated agriculture, increase productivity on reclaimed land and resource conservation through the development of intelligent decision support systems, digital information technologies and mathematical models of agricultural reproduction. The theoretical and methodological basis of the research is the works of domestic and foreign scientists in the field of information technologies for decision support, mathematical modeling and programming, optimization of technical parameters for the operation of reclamation systems. Relevance of the review of the theory and technologies of crop irrigation management using mathematical models and intelligent technologies at the stage of agricultural digitalization. this is due to the need to create a new generation of reclamation systems that use modern achievements of scientific and technological progress, which will make it possible to practically implement the ideas of highly efficient and environmentally friendly agriculture on irrigated lands.
Aspiration-assisted bioprinting of co-cultured osteogenic spheroids for bone tissue engineering
Authors: Heo Dong Nyoung , Ayan Bugra , Dey Madhuri , Banerjee Dishary , Wee Hwabok , Lewis Gregory S , Ozbolat Ibrahim T 
Published: October 2020

Abstract
Conventional top-down approaches in tissue engineering involving cell seeding on scaffolds have been widely used in bone engineering applications. However, scaffold-based bone tissue constructs have had limited clinical translation due to constrains in supporting scaffolds, minimal flexibility in tuning scaffold degradation, and low achievable cell seeding density as compared with native bone tissue. Here, we demonstrate a pragmatic and scalable bottom-up method, inspired from embryonic developmental biology, to build three-dimensional (3D) scaffold-free constructs using spheroids as building blocks. Human umbilical vein endothelial cells (HUVECs) were introduced to human mesenchymal stem cells (hMSCs) (hMSC/HUVEC) and spheroids were fabricated by an aggregate culture system. Bone tissue was generated by induction of osteogenic differentiation in hMSC/HUVEC spheroids for 10 d, with enhanced osteogenic differentiation and cell viability in the core of the spheroids compared to hMSC-only spheroids. Aspiration-assisted bioprinting (AAB) is a new bioprinting technique which allows precise positioning of spheroids (11% with respect to the spheroid diameter) by employing aspiration to lift individual spheroids and bioprint them onto a hydrogel. AAB facilitated bioprinting of scaffold-free bone tissue constructs using the pre-differentiated hMSC/HUVEC spheroids. These constructs demonstrated negligible changes in their shape for two days after bioprinting owing to the reduced proliferative potential of differentiated stem cells. Bioprinted bone tissues showed interconnectivity with actin-filament formation and high expression of osteogenic and endothelial-specific gene factors. This study thus presents a viable approach for 3D bioprinting of complex-shaped geometries using spheroids as building blocks, which can be used for various applications including but not limited to, tissue engineering, organ-on-a-chip and microfluidic devices, drug screening and, disease modeling.
Wolf effect in the scattering of polychromatic radiation by two spheres having parity-time symmetry
Authors: Vieira R A , Brandão P A 
Published: October 2020

Abstract
It was recently proposed (P A Brandão and S B Cavalcanti 2019 Phys. Rev. A 100 043822) that two small (Dirac) scatterers, one having gain and the other having loss, drastically modifies the spectral density of the scattered radiation field. Here, we extend this previous work by studying the scattering of stochastic radiation by two finite spheres having gain and loss, satisfying the parity-time symmetry condition, and verifying the spectral changes in frequency domain, i.e. the non-Hermitian Wolf effect. Under the Born approximation, we analytically found the specific frequencies where the spectral density of the scattered field vanishes and show that they depend on the gain and loss parameter γ of each material. This is evidence of a non-Hermitian Wolf effect, meaning that the spectrum can be tuned by the gain/loss properties of the system. We have also shown that there is a π/2 phase shift when

γ
≫
1

compared to the Hermitian configuration (γ = 0).
Effects of chirality and stacking on the thermal expansion effects of graphene
Authors: Yang Ning , Li Cheng , Tang Yong 
Published: October 2020

Abstract
Graphene has huge application potential in the field of micro-nano devices, and due to the micro/nano-level application size, the thermal expansion coefficient of graphene has a certain impact on device performance. In this paper, a comprehensive study was carried out by molecular dynamics on the in-plane and through-plane thermal expansion effect of graphene. First of all, the in-plane thermal expansion coefficients of zigzag and armchair graphene were analyzed; they were similar and relatively close to the experiment value in the temperature range of 223–428 K. Secondly, the through-plane thermal expansion effect of double-layered graphene was investigated; the thermal expansion coefficient of through-plane was an order of magnitude larger than that of in-plane. Finally, the influence of graphene stacking on the thermal expansion effect was studied; Order-stacked graphene has a greater thermal expansion effect than that of AB- and ABC-stacked graphene. These discoveries in this article are of great significance to the development and application of graphene-based micro-nano devices.
Mn3GaC inverse perovskite thin films by magnetron sputtering from elemental targets
Authors: Petruhins Andrejs , Ingason Arni Sigurdur , Olafsson Sveinn , Rosen Johanna 
Published: October 2020

Abstract
We have deposited epitaxial thin films of the inverse perovskite Mn3GaC using magnetron sputtering from elemental targets. Two substrates were used, MgO (111) and (100), resulting in corresponding orientation of the Mn3GaC thin films. Both samples displayed magnetic properties consistent with an AFM to FM transition at ∼170 K and a Curie temperature around 265 K, evaluated with vibrating sample magnetometry (in-plane measurements). These two ground states are further supported by first principles calculations. Based on that the two orientations of Mn3GaC display very similar magnetic properties, it can be concluded that shape anisotropy dominates over the material’s easy axis.
Photoluminescent properties of liposome-encapsulated amine-functionalized nanodiamonds
Authors: Douda J , González-Vargas C R , Mota-Díaz I I , Basiuk E V , Hernández-Contreras X A , Fuentes-García J A , Bornacelli J , Torres-Torres C 
Published: October 2020

Abstract
In the present work, amine-functionalized nanodiamonds (NDs) have been encapsulated in liposomes and studied in order to observe the modification of their photoluminescence properties. NDs were functionalized with aromatic amines such as 1-aminopyrene and 2-aminofluorene, and the aliphatic amine 1-octadecylamine. Morphology, structural and optical properties of NDs and amine-modified NDs were analyzed by transmission electron microscopy, atomic force microscopy, scanning electron microscopy, and photoluminescence. The amine-functionalized NDs were successfully encapsulated in lecithin liposomes prepared by the green and conventional methods. The obtained results show significant changes in photoluminescent properties of functionalized NDs, and were more potentialized after liposome encapsulation. Our findings could be applied in the development of new kinds of water-dispersible fluorescent hybrids, liposome-NDs, with the capability of drug encapsulation for use in diagnostics and therapy (theragnostic liposomes). All-optical sensors with possibilities for tailoring their response for other biomedical applications can be also contemplated.
iEnhancer-XG: interpretable sequence-based enhancers and their strength predictor
Authors: Cai Lijun , Ren Xuanbai , Fu Xiangzheng , Peng Li , Gao Mingyu , Zeng Xiangxiang 
Published: October 2020

AbstractMotivationEnhancers are non-coding DNA fragments with high position variability and free scattering. They play an important role in controlling gene expression. As machine learning has become more widely used in identifying enhancers, a number of bioinformatic tools have been developed. Although several models for identifying enhancers and their strengths have been proposed, their accuracy and efficiency have yet to be improved.ResultsWe propose a two-layer predictor called ‘iEnhancer-XG.’ It comprises a one-layer predictor (for identifying enhancers) and a second classifier (for their strength) and uses ‘XGBoost’ as a base classifier and five feature extraction methods, namely, k-Spectrum Profile, Mismatch k-tuple, Subsequence Profile, Position-specific scoring matrix (PSSM) and Pseudo dinucleotide composition (PseDNC). Each method has an independent output. We place the feature vector matrix into the ensemble learning for fusion. This experiment involves the method of ‘SHapley Additive explanations’ to provide interpretability for the previous black box machine learning methods and improve their credibility. The accuracies of the ensemble learning method are 0.811 (first layer) and 0.657 (second layer). The rigorous 10-fold cross-validation confirms that the proposed method is significantly better than existing technologies.Availability and implementationThe source code and dataset for the enhancer predictions have been uploaded to https://github.com/jimmyrate/ienhancer-xg.Supplementary informationSupplementary data are available at Bioinformatics online.
Paternal reprogramming-escape histone H3K4me3 marks located within promoters of RNA splicing genes
Authors: Hao Nan , Xin Huawei , Shi Xiaowei , Xin Jie , Zhang Haijuan , Guo Shaofen , Wang Zhen , Hao Chunxiang 
Published: October 2020

Abstract

Motivation
Exposure of mouse embryos to atrazine decreased histone tri-methylation at lysine 4 (H3K4me3) and increased expression of alternatively spliced RNA in the third generation. Specificity protein (SP) family motifs were enriched in the promoters of genes encoding differentially expressed alternative transcripts.

Results
H3K4me3 chromatin immunoprecipitation sequencing (ChIP-seq) of mouse sperm, preimplantation embryo development and male gonad primordial germ cells (PGCs) were analysed to identify the paternal reprogramming-escape H3K4me3 regions (RERs). In total, 251 RERs selected harbour H3K4me3 marks in sperm, with signals occurring in the paternal genome during early development and in male gonad PGCs, and 179 genes had RERs within 1 kb of transcription start sites (TSSs). These genes were significantly enriched in the gene ontology term ‘RNA splicing’, and SP1/SP2/SP3 motifs were enriched in RER-associated H3K4me3 peaks. Overall, the H3K4me3 marks within TSSs of RNA splicing genes survived two rounds of the epigenetic reprogramming process.

Supplementary information
Supplementary data are available at Bioinformatics online.