bluuebunny/crossref_metadata_2025 huggingface dataset:
Applicability of Dynamic Energy Budget (DEB) models across steep environmental gradients
Authors: Monaco Cristián J. , McQuaid Christopher D.
Published: October 2018

Robust ecological forecasting requires accurate predictions of physiological responses to environmental drivers. Energy budget models facilitate this by mechanistically linking biology to abiotic drivers, but are usually ground-truthed under relatively stable physical conditions, omitting temporal/spatial environmental variability. Dynamic Energy Budget (DEB) theory is a powerful framework capable of linking individual fitness to environmental drivers and we tested its ability to accommodate variability by examining model predictions across the rocky shore, a steep ecotone characterized by wide fluctuations in temperature and food availability. We parameterized DEB models for co-existing mid/high-shore (Mytilus galloprovincialis) and mid/low-shore (Perna perna) mussels on the south coast of South Africa. First, we assumed permanently submerged conditions, and then incorporated metabolic depression under low tide conditions, using detailed data of tidal cycles, body temperature and variability in food over 12 months at three sites. Models provided good estimates of shell length for both species across the shore, but predictions of gonadosomatic index were consistently lower than observed. Model disagreement could reflect the effects of details of biology and/or difficulties in capturing environmental variability, emphasising the need to incorporate both. Our approach provides guidelines for incorporating environmental variability and long-term change into mechanistic models to improve ecological predictions.
DArTseq-based analysis of genomic relationships among species of tribe Triticeae
Authors: Edet Offiong U. , Gorafi Yasir S. A. , Nasuda Shuhei , Tsujimoto Hisashi
Published: October 2018

Precise utilization of wild genetic resources to improve the resistance of their cultivated relatives to environmental growth limiting factors, such as salinity stress and diseases, requires a clear understanding of their genomic relationships. Although seriously criticized, analyzing these relationships in tribe Triticeae has largely been based on meiotic chromosome pairing in hybrids of wide crosses, a specialized and labourious strategy. In this study, DArTseq, an efficient genotyping-by-sequencing platform, was applied to analyze the genomes of 34 Triticeae species. We reconstructed the phylogenetic relationships among diploid and polyploid Aegilops and Triticum species, including hexaploid wheat. Tentatively, we have identified the diploid genomes that are likely to have been involved in the evolution of five polyploid species of Aegilops, which have remained unresolved for decades. Explanations which cast light on the progenitor of the A genomes and the complex genomic status of the B/G genomes of polyploid Triticum species in the Emmer and Timopheevi lineages of wheat have also been provided. This study has, therefore, demonstrated that DArTseq genotyping can be effectively applied to analyze the genomes of plants, especially where their genome sequence information are not available.
A quantile regression approach to explain the relationship of Fatigue and Cortisol, Cytokine among Koreans with Hepatitis B
Authors: Jang Yeonsoo , Kim Jeong Hyun , Lee Hyangkyu , Lee Kyunghwa , Ahn Sang Hoon
Published: October 2018

Fatigue is a major symptom among patients with Hepatitis B virus (HBV). However, the physiological mechanisms regarding mediate fatigue and the relationships between fatigue, cortisol and cytokines are unclear in patients with HBV. The purpose of this study was to examine the relationships between perceived fatigue, cortisol, and cytokines in Korean patients with HBV. The mean score for overall fatigue was moderate. In linear regression analyses, TNF-α was only significant as a predictor of fatigue. In quantile regression analyses, the cortisol level was significant in the 70th, 80th, 90th quantiles in the cognitive/mood fatigue subdimension, which correspond to severe levels of fatigue. IL-6 levels were significant in 90th quantile in overall fatigue and in the cognitive/mood fatigue subdimension. Cortisol, IL-6, and TNF- α were related to perceived fatigue in patients with HBV, particularly in the cognitive/mood dimension. This suggests that the fatigue patterns of patients with HBV are related to their mental and mood states and physical responses, such as cortisol and cytokine levels, are correlated with the nature of the fatigue. In the clinic, interventions to manage fatigue in patients with HBV should be developed based on the characteristics of the fatigue.
Dissection of differential vanadate sensitivity in two Ogataea species links protein glycosylation and phosphate transport regulation
Authors: Karginov Azamat V. , Fokina Anastasia V. , Kang Hyun Ah , Kalebina Tatyana S. , Sabirzyanova Tatyana A. , Ter-Avanesyan Michael D. , Agaphonov Michael O.
Published: October 2018

The closely related yeastsOgataea polymorphaandO.parapolymorphadiffer drastically from each other by sensitivity to the toxic phosphate analog vanadate. Search for genes underlying this difference revealed two genes, one designated asABV1(AlcianBlue staining,Vanadate resistance), which encodes a homologue ofSaccharomyces cerevisiaeMnn4 responsible for attachment of mannosylphosphate to glycoside chains of secretory proteins, and the other designated as itsS.cerevisiaehomologuePHO87, encoding the plasma membrane low affinity phosphate sensor/transporter. The effect of Pho87 on vanadate resistance was bidirectional, since it decreased the resistance on phosphate-depleted medium, but was required for pronounced protection against vanadate by external phosphate. This highlights the dual function of this protein as a low affinity phosphate transporter and an external phosphate sensor. Involvement of Pho87 in phosphate sensing was confirmed by its effects on regulation of the promoter of thePHO84gene, encoding a high affinity phosphate transporter. The effect of Abv1 was also complex, since it influenced Pho87 level and enhanced repression of thePHO84promoterviaa Pho87-independent pathway. Role of the identified genes in the difference in vanadate resistance betweenO.polymorphaandO.parapolymorphais discussed.
Long-lived non-classical correlations towards quantum communication at room temperature
Authors: Zugenmaier Michael , Dideriksen Karsten B. , Sørensen Anders S. , Albrecht Boris , Polzik Eugene S.
Published: October 2018

Heralded single-photon sources with on-demand readout are a key enabling technology for distributed photonic networks. Such sources have been demonstrated in both cryogenic solid-state and cold-atoms systems. Practical long-distance quantum communication may benefit from using technologically simple systems such as room-temperature atomic vapours. However, atomic motion has so far limited the single-excitation lifetime in such systems to the microsecond range. Here we demonstrate efficient heralding and readout of single collective excitations created in warm caesium vapour. Using the principle of motional averaging we achieve a collective excitation lifetime of 0.27 ± 0.04 ms, two orders of magnitude larger than previously achieved for single excitations in room-temperature sources. We experimentally verify non-classicality of the light-matter correlations by observing a violation of the Cauchy-Schwarz inequality with R = 1.4 ± 0.1 > 1. Through spectral and temporal analysis we investigate the readout noise that limits single-photon operation of the source.
First insights into electrochemical transformations of two triazine-based brominated flame retardants in model systems
Authors: Lörchner Dominique , Kroh Lothar W. , Köppen Robert
Published: October 2018

In this work, a study of electrochemical conversion was performed to elucidate different degradation pathways of the heterocyclic brominated flame retardants 1,3,5-tris-(2,3-dibromopropyl)-1,3,5-triazine-2,4,6-trione (TDBP-TAZTO) and 2,4,6-tris-(2,4,6-tribromo-phenoxy)-1,3,5-triazine (TTBP-TAZ).
Recent advances in mono and binuclear gold photoredox catalysis
Authors: Zidan M. , Rohe S. , McCallum T. , Barriault L.
Published: October 2018

In this minireview, recent developments in the field of photoredox catalysis and the applications of mono and binuclear Au(i) complexes in organic transformations are discussed.
Ultralight supercapacitors utilizing waste cotton pads for wearable energy storage
Authors: Lu Yang , Wang Weixiao , Wang Yange , Zhao Menglong , Lv Jinru , Guo Yan , Zhang Yingge , Luo Rongjie , Liu Xianming
Published: October 2018

Ultralight, flexible and renewable supercapacitors based on MnO2 nanosheets strongly coupled with a PPy layer coated on discarded cotton pads as electrodes have been developed. The flexible supercapacitor is ready for a potential application in wearable energy storage systems.
Defect engineering on electrocatalysts for gas-evolving reactions
Authors: He Junying , Zou Yuqin , Wang Shuangyin
Published: October 2018

This review focuses on the recent advance in defect engineering of electro-catalysts for specific electro-catalytic applications.
Uptake, translocation, and transformation of metal-based nanoparticles in plants: recent advances and methodological challenges
Authors: Lv Jitao , Christie Peter , Zhang Shuzhen
Published: October 2018

We review the uptake, translocation and transformation of metal based nanoparticles in higher plants, and present advanced analytical techniques and future perspectives in this field.
Resveratrol alleviates motor and cognitive deficits and neuropathology in the A53T α-synuclein mouse model of Parkinson's disease
Authors: Zhang Li-fan , Yu Xiao-lin , Ji Mei , Liu Shu-ying , Wu Xiao-ling , Wang Yu-jiong , Liu Rui-tian
Published: October 2018

Resveratrol exerts neuroprotective effects on the A53T α-synuclein mouse model of Parkinson's disease.
Evaluation of the neuroprotective effect of EGCG: a potential mechanism of mitochondrial dysfunction and mitochondrial dynamics after subarachnoid hemorrhage
Authors: Chen Ying , Chen Jianjun , Sun Xiaoxue , Shi Xiaoxiao , Wang Lei , Huang Liyong , Zhou Wenke
Published: October 2018

(−)-Epigallocatechin-3-gallate (EGCG), the main bioactive component of tea catechins, exhibits broad-spectrum health efficacy against mitochondrial damage after subarachnoid hemorrhage (SAH).
Supramolecular fluorescent hydrogelators as bio-imaging probes
Authors: Mehwish Nabila , Dou Xiaoqiu , Zhao Yong , Feng Chuan-Liang
Published: October 2018

Supramolecular fluorescent hydrogelators (SFH) have emerged as a promising system for bio-imaging applications, such as detecting molecules/signals and sensing markers of diseases with the highest specificity, mapping molecular events,in vivotracking and understanding cell behavior, in the past few years.
π-Conjugated nanostructured materials: preparation, properties and photonic applications
Authors: Tuncel Dönüs
Published: October 2018

The preparation, properties, and photonic applications of π-conjugated nanostructured-materials are reviewed.
Iron phosphide encapsulated in P-doped graphitic carbon as efficient and stable electrocatalyst for hydrogen and oxygen evolution reactions
Authors: Yao Yunduo , Mahmood Nasir , Pan Lun , Shen Guoqiang , Zhang Rongrong , Gao Ruijie , Aleem Fazal-e , Yuan Xiaoya , Zhang Xiangwen , Zou Ji-Jun
Published: October 2018

FeP encapsulated in P-doped graphitic carbon, which is fabricated via the pyrolysis of Fe-MIL-88 followed by phosphorization, exhibits excellent HER and OER activity.
Plasmonic core–shell nanostructure as an optical photoactive nanolens for enhanced light harvesting and hydrogen production
Authors: Gesesse Getaneh Diress , Le Neel Thomas , Cui Zhenpeng , Bachelier Guillaume , Remita Hynd , Colbeau-Justin Christophe , Ghazzal Mohamed Nawfal
Published: October 2018

Hydrogen production using plasmonic photocatalyst has attracted increasing attention since it improves light harvesting and photoefficiency.
Investigations into the DNA-binding mode of doxorubicinone
Authors: Tartakoff Samuel Steucek , Finan Jennifer M. , Curtis Ellis J. , Anchukaitis Haley M. , Couture Danielle J. , Glazier Samantha
Published: October 2018

Spectroscopic and calorimetric study of DNA-binding by doxorubicin and doxorubicinone found different binding modes for the two molecules, despite their structural homology.
Aerobic oxidation of 5-hydroxymethylfurfural to 5-hydroxymethyl-2-furancarboxylic acid and its derivatives by heterogeneous NHC-catalysis
Authors: Brandolese Arianna , Ragno Daniele , Di Carmine Graziano , Bernardi Tatiana , Bortolini Olga , Giovannini Pier Paolo , Pandoli Omar Ginoble , Altomare Alessandra , Massi Alessandro
Published: October 2018

Heterogeneous NHC-catalysis is an effective synthetic platform for the production of bio-based furan derivatives.
Twisted molecule-based hyper-crosslinked porous polymers for rapid and efficient removal of organic micropollutants from water
Authors: Jia Ziyan , Pan Jiannan , Tian Chen , Yuan Daqiang
Published: October 2018

Four hyper-crosslinked porous polymers were synthesized by a facile method, and exhibited excellent adsorption performances for organic micropollutant removal from water.
High-performance multi-functional graphene/hexagonal boron nitride/poly(ethylene oxide) nanocomposites through enhanced interfacial interaction by coordination
Authors: Lin Chen , Ye Xiong-Ying , Xie Xu-Ming
Published: October 2018

A versatile method to bridge different nanomaterials by metal-ion coordination and enhance different properties simultaneously.
Silencing TRIM37 inhibits the proliferation and migration of non-small cell lung cancer cells
Authors: Ding Yi , Lu Yi , Xie Xinjie , Sheng Bo , Wang Zuopei
Published: October 2018

Tripartite motif containing 37 (TRIM37), a member of the tripartite motif (TRIM) family, has been involved in the development and progression of several tumors.
Functional metabolomics discover pentose and glucuronate interconversion pathways as promising targets for Yang Huang syndrome treatment with Yinchenhao Tang
Authors: Sun Hui , Zhang Ai-hua , Song Qi , Fang Heng , Liu Xing-yuan , Su Jing , Yang Le , Yu Meng-die , Wang Xi-jun
Published: October 2018

Yinchenhao Tang (YCHT), a classic traditional Chinese medicine (TCM) formulae, plays an important role in the treatment of Yang Huang syndrome (YHS).
Preparation and photocatalytic application of a S, Nd double doped nano-TiO2 photocatalyst
Authors: Wang Shuo , Bai Liming , Ao Xinling
Published: October 2018

Nowadays, water pollution is getting more and more severe in society, and recently the rational use of photocatalytic technology to treat sewage has become a hot spot for research.
Effects of sample pretreatment and particle size on the determination of nitrogen in soil by portable LIBS and potential use on robotic-borne remote Martian and agricultural soil analysis systems
Authors: Yan Xiu T. , Donaldson Karen M. , Davidson Christine M. , Gao Yichun , Wu Hanling , Houston Andrew M. , Kisdi Aron
Published: October 2018

Measurement of nitrogen in soil using a portable LIBS for potential use on robotic-borne remote Martian and agricultural soil analysis systems.
Alkaline treatment of used carbon-brush anodes for restoring power generation of microbial fuel cells
Authors: Li Lin , Jiang Bo , Tang Dawei , Zhang Xiaoliang , Yuan Kunpeng , Zhang Qian
Published: October 2018

An alkaline soaking treatment is proposed as an efficient and simple method for anode regeneration.
Sodium hydroxide and vacuum annealing modifications of the surface terminations of a Ti3C2(MXene) epitaxial thin film
Authors: Halim Joseph , Persson Ingemar , Eklund Per , Persson Per O. Å. , Rosen Johanna
Published: October 2018

Ti3C2Tx(MXene) thin film shows elimination of –F and domination of –O surface terminations after NaOH treatment followed by annealing while preserving the electrical conductivity of the film.
Preparation and characterization of soy protein isolate-collagen self-assembled nanomicelles
Authors: Wang Ruirui , Wang Hongru , Yao Yijun , Chai Yong
Published: October 2018

This paper describes the preparation and characterization of soy protein isolate (SPI)-collagen self-assembled nanomicelles.
Facile synthesis of highly conductive MoS2/graphene nanohybrids with hetero-structures as excellent microwave absorbers
Authors: Chai Jixing , Zhang Deqing , Cheng Junye , Jia Yixuan , Ba Xuewei , Gao Ya , Zhu Lei , Wang Hao , Cao Maosheng
Published: October 2018

Two-dimensional (2D) MoS2/graphene nanosheet (MoS2/GN) hybrids have been demonstrated to be promising microwave absorption (MA) materials due to their unique chemical and physical properties as well as rich impedance matching.
Enantioselective synthesis of gem-disubstituted N-Boc diazaheterocycles via decarboxylative asymmetric allylic alkylation
Authors: Sun Alexander W. , Hess Stephan N. , Stoltz Brian M.
Published: October 2018

An enantioselective synthesis of diverse N4-Boc-protected α,α-disubstituted piperazin-2-ones and tetrahydropyrimidin-2-ones using the palladiumcatalyzed decarboxylative allylic alkylation reaction has been achieved.
Synthetic 2-D lead tin sulfide nanosheets with tuneable optoelectronic properties from a potentially scalable reaction pathway
Authors: Norton Kane , Kunstmann Jens , Ping Lu , Rakowski Alexander , Wang Chuchen , Marsden Alexander J. , Murtaza Ghulam , Zeng Niting , McAdams Simon J. , Bissett Mark A. , Haigh Sarah J. , Derby Brian , Seifert Gotthard , Lewis David J.
Published: October 2018

Thermolysis of molecular precursors followed by liquid phase exfoliation accesses 2-D IV–VI semiconductor nanomaterials.
Ba4Bi2(Si8−xB4+xO29) (x = 0.09): a new acentric metal borosilicate as a promising nonlinear optical material
Authors: Tang Ru-Ling , Hu Chun-Li , Mao Fei-Fei , Feng Jiang-He , Mao Jiang-Gao
Published: October 2018

A novel acentric metal borosilicate, Ba4Bi2(Si8−xB4+xO29) (x = 0.09), exhibits the strongest NLO effects in borosilicates.
Frank elasticity of composite colloidal nematics with anti-nematic order
Authors: Wensink H. H.
Published: October 2018

Mixing colloid shapes with distinctly different anisotropy generates composite nematics in which the order of the individual components can be fundamentally different.
Patchy colloidal particles at the fluid–fluid interface
Authors: Chio Chung Chi , Tse Ying-Lung Steve
Published: October 2018

Imbalance of solvent particle density leads to depletion force.
Effects of 1,8-diiodooctane on domain nanostructure and charge separation dynamics in PC71BM-based bulk heterojunction solar cells
Authors: Lou Sylvia J. , Zhou Nanjia , Guo Xugang , Chang Robert P. H. , Marks Tobin J. , Chen Lin X.
Published: October 2018

Transient absorption and X-ray scattering demonstrate 1,8-diiodooctane impact on morphology and charge generation in mixed phases in bulk heterojunction solar cells.
A g-C3N4/MIL-101(Fe) heterostructure composite for highly efficient BPA degradation with persulfate under visible light irradiation
Authors: Gong Yan , Yang Bo , Zhang Hui , Zhao Xu
Published: October 2018

Heterostructured composites with outstanding photocatalytic performance have attracted intense attention because of their great potential for use in environmental remediation.
General and facile synthesis of hollow metal oxide nanoparticles coupled with graphene nanomesh architectures for highly efficient lithium storage
Authors: Zhang Zheye , Tian Xin , Liu Mingli , Xu Pei , Xiao Fei , Wang Shuai
Published: October 2018

Novel hollow-on-mesh hybrid architectures composed of hollow transition metal oxides and graphene nanomeshes hold great promise as advanced free-standing anodes for highly efficient lithium storage.
Nanoionic transport and electric double layer formation at the electrode/polymer interface for high-performance supercapacitors
Authors: Krishnan Karthik , Jayaraman Premkumar , Balasubramanian Subramanian , Mani Ulaganathan
Published: October 2018

Ionic charge distribution and electric double layer formation at the electrode/polymer interface have been systematically studied for high-performance supercapacitors.
All-in-one hyperbranched polypeptides for surgical adhesives and interventional embolization of tumors
Authors: Lu Dedai , Li Yunfei , Wang Xiangya , Li Ting’e , Zhang Yongyong , Guo Hongyun , Sun Shaobo , Wang Xiaoqi , Zhang Yongdong , Lei Ziqiang
Published: October 2018

A series of hyperbranched, thermo-responsive and mussel-inspired polypeptides were synthesized and used for surgical adhesion, hemostasis and interventional embolization.
Radon induced mitochondrial dysfunction in human bronchial epithelial cells and epithelial–mesenchymal transition with long-term exposure
Authors: Xu Qian , Fang Lijun , Chen Bin , Zhang Hong , Wu Qianqian , Zhang Hongbo , Wang Aiqing , Tong Jian , Tao Shasha , Tian Hailin
Published: October 2018

Radon is a naturally occurring radionuclide, which has a wide environmental distributed.
Association of ADAMTS4 and ADAMTS5 polymorphisms with musculoskeletal degenerative diseases: a systematic review and meta-analysis
Authors: Huo Jian-Zhong , Ji Xing-Hua , Su Zhong-Yi , Shang Peng , Gao Fei
Published: October 2018

Objective: This meta-analysis and systematic review was performed with the aim of investigating the association between a disintegrin and metalloproteinase with thrombospondin motif (ADAMTS)4, AMDMTS5 polymorphisms and risk of musculoskeletal degenerative diseases.

Methods: PubMed, EMBASE, ISI Web of Science, Wanfang and CNKI were searched from their inception until May 2018 to identify eligible studies. Data from individual studies were extracted using a standardized data collection sheet. The estimate of association between ADAMTS4, AMDMTS5 polymorphisms and risk of musculoskeletal degenerative diseases was expressed as odds ratio (OR) along with its related 95% confidence interval (95%CI) under an allelic model of inheritance. Meta-analysis was conducted using RevMan 5.3 software. Subgroup-analyses by ethnicity and type of diseases were performed.

Results: Eight studies including ten cohorts were included in this meta-analysis. The meta-analyses results based on seven studies showed that rs226794 in ADAMTS5 gene was not associated with risk of musculoskeletal degenerative diseases (A vs. G: OR 1.07; 95%CI 0.97–1.19; P=0.16). Rs2830585 in ADAMTS5 was significantly associated with musculoskeletal degenerative diseases in only Asians (OR 1.41, 95%CI 1.18–1.68; P=0.0001), but not in Caucasians. Since only two of the collected studies referred to ADAMTS4, we did not perform meta-analysis for these comparisons.

Conclusion: Taken together, rs226794 and rs2830585 in ADAMTS5 gene were not associated with musculoskeletal degenerative diseases in overall population, but there seemed to be an ethnicity-dependent effect of rs2830585 in the risk of musculoskeletal degenerative diseases. Insufficient evidence was found to support the association of other single nucleotide polymorphisms and musculoskeletal degenerative diseases.
Structural snapshots of RAF kinase interactions
Authors: Rezaei Adariani Soheila , Buchholzer Marcel , Akbarzadeh Mohammad , Nakhaei-Rad Saeideh , Dvorsky Radovan , Ahmadian Mohammad Reza
Published: October 2018

RAF (rapidly accelerated fibrosarcoma) Ser/Thr kinases (ARAF, BRAF, and CRAF) link the RAS (rat sarcoma) protein family with the MAPK (mitogen-activated protein kinase) pathway and control cell growth, differentiation, development, aging, and tumorigenesis. Their activity is specifically modulated by protein–protein interactions, post-translational modifications, and conformational changes in specific spatiotemporal patterns via various upstream regulators, including the kinases, phosphatase, GTPases, and scaffold and modulator proteins. Dephosphorylation of Ser-259 (CRAF numbering) and dissociation of 14-3-3 release the RAF regulatory domains RAS-binding domain and cysteine-rich domain for interaction with RAS-GTP and membrane lipids. This, in turn, results in RAF phosphorylation at Ser-621 and 14-3-3 reassociation, followed by its dimerization and ultimately substrate binding and phosphorylation. This review focuses on structural understanding of how distinct binding partners trigger a cascade of molecular events that induces RAF kinase activation.
Modular scheme for four‐wheel‐drive electric vehicle tire‐road force and velocity estimation
Authors: Guo Hongyan , Liu Hui , Yin Zhenyu , Wang Yulei , Chen Hong , Ma Yingjun
Published: October 2018

The limited availability of vehicle state information, including tire‐road forces and vehicle velocities, restricts the development of control strategies for intelligent vehicles and new energy vehicles. This study proposes a modular estimation scheme for tire‐road forces and vehicle velocities that can effectively cope with the cyclic coupling of the vehicle dynamics. The longitudinal tire‐road forces are estimated using a sliding mode observer. Then, an observer for the lateral tire‐road forces that exist in a cascade structure with the longitudinal tire‐road force observer is designed. Non‐linear vehicle velocity observers that take the estimated longitudinal and lateral tire‐road forces as inputs are designed. A genetic algorithm approach is employed to select the observer gains. Finally, experimental validations under normal conditions and offline simulations under critical conditions for verifying the robustness with respect to measurement noise are conducted. The results demonstrate that the proposed modular scheme for tire‐road force and vehicle velocity estimation yields acceptable results and has potential value for real vehicle applications.
Enhancing the reliability of protection scheme for PV integrated microgrid by discriminating between array faults and symmetrical line faults using sparse auto encoder
Authors: Manohar Murli , Koley Ebha , Ghosh Subhojit
Published: October 2018

The ever increasing power demand and stress on reducing carbon footprint have paved the way forwidespread use of photovoltaic (PV) integrated microgrid. However, thedevelopment of a reliable protection scheme for PV integrated microgrid ischallenging because of the similar voltage‐current profile of PV array faultsand symmetrical line faults. Conventional protection schemes based onpre‐defined threshold setting are not able to distinguish between PV array andsymmetrical faults, and hence fail to provide separate controlling actions forthe two cases. In this regard, a protection scheme based on sparse autoencoder(SAE) and deep neural network has been proposed to discriminate between arrayfaults and symmetrical line faults in addition to perform mode detection, faultdetection, classification and section identification. The voltage‐currentsignals retrieved from relaying buses are converted into grey‐scale images andfurther fed as input to the SAE to perform unsupervised feature learning. Theperformance of the proposed scheme has been evaluated through reliabilityanalysis and compared with artificial neural network, support vector machine anddecision tree based techniques under both islanding and grid‐connected mode ofthe microgrid. The scheme has been also validated for field applications byperforming real‐time simulations on OPAL‐RT digital simulator.
ALMA detects a radial disk wind in DG Tauri
Authors: Güdel M. , Eibensteiner C. , Dionatos O. , Audard M. , Forbrich J. , Kraus S. , Rab Ch. , Schneider Ch. , Skinner S. , Vorobyov E.
Published: October 2018

Aims. We aim to use the high spatial resolution of the Atacama Large Millimeter/submillimeter Array (ALMA) to map the flow pattern of molecular gas near DG Tauri and its disk, a young stellar object driving a jet and a molecular outflow.

Methods. We use observations from ALMA in the J = 2 − 1 transition of 12CO, 13CO, and C18O to study the Keplerian disk of DG Tauri and outflows that may be related to the disk and the jet.

Results. We find a new wind component flowing radially at a steep angle (≈25° from the vertical) above the disk with a velocity of ≈3.1 km s−1. It continues the trend of decreasing velocity for increasing distance from the jet axis (“onion-like velocity structure”).

Conclusions. The new component is located close to the protostellar disk surface and may be related to photoevaporative winds.
Modeling of Hybrid Solar Palel For Producing Hydrogen
Authors: Ameur Menad Chawki , Gomri Rabah
Published: October 2018

Applied renewable energy for improving the quality of life has taken the major part of the modern research. The purpose of doing this research is developing new technology which is modeling a new hybrid solar panels generating by different sources of renewable energy, and mini mechanical systems. As a result generating hybrid solar panel by geothermal energy and solar energy, including the mini-turbine increases the water’s temperature from 95°C to 622°C for producing the hydrogen through the electrochemical thermodynamic by using HTES Technology.
Experimental Study of Numerical Relay for Over-current Protection in Solar Panel for Securing the Hydrogen production
Authors: Ameur menad Chawki , Bouchahdane M. , Gomri Rabah
Published: October 2018

Every electrical system in solar panel can fail during electrical faults. In this incidence, high fault current can occur. Such current must be interrupted by a protective system. The research was supported by experimental tests. In work conditions close to real, the numerical relay REF542plus was tested for both instantaneous and extremely inverse definite minimum time IDMT over-current protection functions with the help of CMC 365 injection and test equipment associated to Test Universe software. Protecting hybrid solar panels generating by different renewable energy sources for hydrogen production from over-current is very important for improving the energy efficiency in one hand, and securing the function in critical condition from damage of the solar cells in second hand. The contribution of this research is controlling the over-current in the solar panel for securing the continuation of the hydrogen production from renewable energy sources in short time. The obtained results allowed the observation of the relay’s behavior when subjected to certain faults; where the solar panel keeps producing the hydrogen.
An Investigation into the Effects of Risks and Risk Management of Bioenergy Projects
Authors: Bature Aminu , Melville Lynsey , Mizanur Rahman Khondokar , Akhtar Jahangir , Aulak Poonam
Published: October 2018

Risk is an important component in project management and plays a key role in securing project finance in renewable energy sector. As the amount of companies making investment in renewables grow, so do the inherent risks in the different stages of the projects. This study seeks to obtain information, which will help examine the risks associated with bioenergy projects and the methods used to identify, manage and reduce them. The study is conducted in the form of a survey with data being gathered using questionnaires. The results of this study shows that although when taken as a whole, policy and regulatory risk is the most significant risk associated with renewable energy projects, financial and environmental risks are the most important risks related to bioenergy projects. These suggest that financing, which is one of the key elements in maintaining, building and operating bioenergy plants faces substantial obstacles in managing it risks. Moreover, the study shows that insurance coverage and company-based risk management functions are the most important risk management tools for managing financial and environmental risks respectively. It is recommended that governments should strive to include bioenergy stakeholders in their policy development in order to integrate industry’s perspective into the process.
Hybrid Renewable Power Systems for Generation of Own Power by Small and Medium-Scale Enterprises
Authors: Bose Archishman , Raj Kiran , Kuzeva Denitsa , Mura Tommaso , Xin Jialei , Jayasuriya Jeevan
Published: October 2018

Decentralized power generation, from renewables, is an attractive option for the future energy transition. Through a case study, the techno-economic feasibility to produce own power from distributed renewable to de-carbonize the operations of the Small and Medium Scale Enterprises (SMEs) was critically analysed. The case study was performed on one of the leading printing outfits of Sri Lanka. Solar photovoltaic (PV) and biomass gasification systems are the most cost-efficient and easy to operate technologies for grid-connected, small-scale power generation, at present, for the context. Grid integration has been found as a major challenge, in both technical and economic parameters of the project. The low capacity factor of solar PV and complexity of the supply chain for biomass power systems are critical to the respective technologies. A hybrid Solar PV-Biomass gasification power plant would have superior techno-economic performances with lower environmental impact than stand-alone systems. An equal share of the net power capacity between the technologies was obtained as the most suitable combination for the proposed hybrid power plant. A net carbon dioxide reduction of more than eighty percent of the operations of the SMEs is feasible. Socio-political factors also have a high impact on overall viability of such small-scale systems.
Study of oscillations with accelerator and reactor neutrinos
Authors: Kudenko Yury
Published: October 2018

The present status of accelerator and reactor neutrino experiments and new results are presented. A short overview of future projects is also given. The experimental status of sterile neutrino searches is briefly discussed.
A new operating mode in experiments searching for free neutron-antineutron oscillations based on coherent neutron and antineutron mirror reflections
Authors: Nesvizhevsky V.V. , Gudkov V. , Protasov K.V. , Snow W.M. , Voronin A.Yu.
Published: October 2018

An observation of neutron-antineutron oscillations (n - n¯), which violate both B and B - L by 2 units, would constitute a fundamental discovery and contribute to our understanding of the baryon asymmetry of the universe. A sufficiently stringent upper constraint on this process would also make a major contribution by ruling out the possibility of post-sphaleron baryogenesis (PSB) involving first-generation quarks, which would mean that sphaleron transitions at the electroweak scale are essential for baryogenesis within the Sakharov paradigm. We show that one can design an experiment with free n using existing or projected neutron sources that can reach the sensitivity needed to rule out PSB if one allows the n and n¯, with sufficiently small tangential velocity, to coherently reflect from n/n¯ mirrors composed of certain nuclei. We show that the sensitivity of a future experiment can be greatly improved, and a more compact and less expensive apparatus can be realized. A sensitivity gain of ~ 104 in the oscillation probability relative to the existing free-n limit can be reached if one is willing to adopt a long flight path with a horizontal guide viewing a cold neutron source, or a significantly shorter flight path with a vertical guide viewing a very cold neutron source.
Recent developments in charmed baryon spectroscopy
Authors: Solovieva Elena
Published: October 2018

An overview of recent developments in charmed baryon spectroscopy is given. The classification of charmed baryons is presented, a quark model for ground states is briefly described, and the energy levels of excited states are analyzed.
On one method of comparison experimental and theoretical data
Authors: Bityukov Sergey , Krasnikov Nikolai , Smirnova Vera
Published: October 2018

The method for statistical comparison of data sets (experimental and theoretical) is discussed. The method now is in development. The key parts of the method are presented in the paper.
New experiment for WIMP direct search (NEWSdm)
Authors: Polukhina Natalia , Starkov Nikolai
Published: October 2018

Dark Matter (DM) search is one of the most significant tasks of modern physics. Direct DM searches are nowadays one of the most fervid research topics with many experimental efforts devoted to the search for nucleus recoils induced by the scattering of Weakly Interactive Massive Particles (WIMP). The new experiment NEWSdm (Nuclear Emulsions for WIMP Search - directional measurement) aimed at direct search for DM particles is based on the technologies of nuclear emulsions combining high spatial resolution and the possibility of creating large mass detectors. Emulsion detectors able to reconstruct the direction of the nuclei recoiling on the WIMP are opening a new frontier to possibly extend DM searches beyond the neutrino background. The detector concept foresees the use of a bulk of nuclear emulsion surrounded with a shield from environmental radioactivity, to be placed on an equatorial telescope in order to cancel out the effect of the Earth rotation keeping the detector at a fixed orientation toward the expected direction of galactic WIMPs. Exploiting directionality would also prove the galactic origin of DM with an unambiguous signal-to-background separation. The use in NEWSdm of fine-grained nuclear emulsions both as target and nanometric tracking device for directional DM searches gives a unique opportunity for a high-significance discovery of galactic DM.
Recent results from the T2K experiment
Authors: Khabibullin Marat
Published: October 2018

Recent results of the analysis of 2:23×1021 POT data collected by the T2K long-baseline neutrino accelerator experiment are presented in this paper. It is shown that T2K is able to constrain the CP-violating phase δCP in the lepton sector with 2σ significance. Nearest plans for improving the sensitivity to δCP are also given.
Stationary and non-stationary solutions of the evolution equation for neutrino in matter
Authors: Chukhnova A.V. , Lobanov A.E.
Published: October 2018

We study solutions of the equation which describes the evolution of a neutrino propagating in dense homogeneous medium in the framework of the quantum field theory. In the two-flavor model the explicit form of Green function is obtained, and as a consequence the dispersion law for a neutrino in matter is derived. Both the solutions describing the stationary states and the spin-flavor coherent states of the neutrino are found. It is shown that the stationary states of the neutrino are different from the mass states, and the wave function of a state with a definite flavor should be constructed as a linear combination of the wave functions of the stationary states with coefficients, which depend on the mixing angle in matter. In the ultra-relativistic limit the wave functions of the spin-flavor coherent states coincide with the solutions of the quasi-classical evolution equation. Quasi-classical approximation of the wave functions of spin-flavor coherent states is used to calculate the probabilities of transitions between neutrino states with definite flavor and helicity.
Light scalar mesons and the data on two-kaon correlation functions
Authors: Achasov Nikolay N. , Kiselev Alexey V.
Published: October 2018

It is shown that the ALICE data on the K0S K+ correlation in Pb-Pb interactions together with the data on the γγ → ηπ0 and φ → ηπ0γ reactions could be simultaneously described when a0(980) has no constituent qq¯ component at all. Besides, the validity of the Gaussian assumption is kept.
Rotation and spin dynamics in heavy-ion collisions
Authors: Prokhorov G.Yu. , Zakharov V.I. , Teryaev O.V.
Published: October 2018

Statistical average of the axial current is evaluated on the basis of the covariantWigner function. In the zero-mass limit, the axial current is described by a smooth function only at temperatures higher than the Unruh temperature. At zero temperature, the axial current, as a function of the angular velocity and chemical potential, vanishes in a two-dimensional plane region.
Holography, quantum complexity and quantum chaos in different models
Authors: Ageev Dmitry
Published: October 2018

This contribution to Quarks’2018 conference proceedings is based on the talk presenting papers [1, 2] at the conference. These papers are devoted to the holographic description of chaos and quantum complexity in the strongly interacting systems out of equilibrium. In the first part of the talk we present different holographic complexity proposals in out-of-equilibrium CFT following the local perturbation. The second part is devoted to the chaotic growth of the local operator at a finite chemical potential. There are numerous results stating that the chemical potential may lead to the chaos disappearance, and we confirm the results from holography.
Parity anomalies on 4D manifolds with boundaries
Authors: Kurkov Maxim
Published: October 2018

We discuss a parity breaking in theories of fermions, which are trapped inside four-manifolds with boundaries. Even though these theories are parity-invariant at the classical level, the radiative corrections induce parityviolating boundary terms. The effect is present in both gauge and gravitational sectors.
Characteristic modes of vibration of Q-balls
Authors: Kovtun Andrei , Nugaev Emin , Shkerin Andrey
Published: October 2018

In this report, based on [1], we study analytically small perturbations of classically stable Q-balls in 3+1 dimensions. Models with flat and polynomial potentials are considered. We find that large Q-balls in the model with the flat potential possess soft modes. We also find a specific mode for Q-balls near the stability bound, which is related to the decay mode of Q-clouds. For these modes, the perturbation theory is applicable with respect to the relative frequency of an excitation.
Failure of mean-field approximation in weakly coupled dilaton gravity
Authors: Fitkevich Maxim
Published: October 2018

We investigate black hole evaporation in a weakly coupled model of two-dimensional dilaton gravity paying a particular attention to the validity of the semiclassical mean-field approximation. Our model is obtained by adding a reflecting boundary to the celebrated RST model describing N gravitating massless scalar fields to one-loop level. The boundary cuts off the region of strong coupling. Although our model is explicitly weakly coupled, we find that the mean field approximation inevitably fails at the end of black hole evaporation. We propose an alternative semiclassical method aiming at direct calculation of S-matrix elements and illustrate it in a simple shell model.
Condition assessment: From good choice of methods to reliable results that meet the customer demand
Authors: Taffe Alexander
Published: October 2018

Condition assessment of structures reveals information of the inner structure and its condition. To be insightful the testing task has to be defined regarding the target state defined by the customer. Questions such as “What method should be applied?”, “Where should be measured at what time?” and “How many measurements are sufficient?” have to be answered to guarantee reliable results. Often it is obvious that the additional use of non-destructive methods makes sense. But what method is the most appropriate and what strategy should be applied? This contribution will help to develop a strategy to achieve reliable results. Reliable results have to be accurate which means that reliable results have to be true and precise. According to the GUM (Guideline to the expression of Uncertainty in Measurement) the procedure how to evaluate data statistically will be demonstrated. Furthermore, it will be shown how statistically evaluated data can be used in static calculations to furnish the proof of the stability of the real as-built structure. This profoundly use of data contributes to make good and reliable decisions.
A new test for combined Ca-leaching and sulphate resistance of cementitious materials
Authors: Steindl Florian R. , Baldermann Andre , Galan Isabel , Sakoparnig Marlene , Dietzel Martin , Mittermayr Florian
Published: October 2018

Limitations in the understanding of chemical key controls on concrete damaging mechanisms exacerbate predictions on the long-term performance and durability of cementitious materials. Therefore, the scope of the project “ASSpC Advanced and Sustainable Sprayed Concrete” is to obtain a better mechanistic understanding of the processes underlying deleterious chemical attacks. The herein presented alternative test, loosely following the regulations of the German Building Authority (DIBt) testing procedure (the so-called SVA test) for sulphate resistance, investigates the resistance of concrete mixes with high levels of limestone substitution (35%, 50% and 65%) against sulphate attack in a 10 g L-1 Na2SO4 solution at ambient temperature. Powdered samples were used in favour of prisms or drill cores to accelerate alteration reactions and to eliminate variations in microstructure or porosity. Based on throughout chemical and mineralogical characterisation of the experimental solutions and solid materials, we identified and traced several mineral reactions taking place in a chronological order: (1) dissolution of portlandite and Ca-leaching from C-S-H started immediately at the beginning of the experiments and provided the physicochemical conditions favourable for (2) the precipitation of massive calcite and ettringite during the advanced stage of chemical attack. Ongoing changes in the aqueous composition indicate that C-S-H dissolves incongruently and may be transformed into Si-bearing hydrogarnet. The amount of precipitated ettringite is apparently controlled by the availability of calcium, sulphate and aluminium and the precipitation rate correlates with the superplasticiser demand of the concrete mixes and with the pH of the solution during the nucleation and crystal growth stages, respectively. Our test allows distinguishing between competing reaction paths and kinetics and is capable to provide new insights into concrete damaging mechanisms in sulphate-loaded aqueous environments.
Three decades of international RILEM activities to combat deleterious Alkali-Silica Reactions (ASR) in concrete.
Authors: Wigum Børge Johannes , Lindgård Jan
Published: October 2018

Since 1988, the International Union of Laboratories and Experts in Construction Materials, Systems and Structures (RILEM) Technical Committees (TCs) have been seeking to establish universally applicable test methods for assessing the alkali-reactivity potential of aggregates, and from later on, for concrete mixes. TC 106 (1988 – 2001) focused on accelerated aggregate tests. The successor committee TC 191-ARP (2001 – 2006) also included work on diagnosis/appraisal & specification. TC 219-ACS (2006 – 2014) introduced work on performance testing & modelling. The major recommendations were published as a RILEM State-of-the-art Report in 2016. In 2014, TC 258-AAA was established, scheduling to finish the work on performance-based assessment in 2019. This current TC is focusing on the following Work Packages; WP1Performance based testing concepts, WP2 Relationship between results from laboratory and field and the establishment of field exposure sites, WP3 Testing of potential alkalis released from certain types of aggregates and measurement of internal concrete alkali content, and eventually; WP4 Verification of alkalis released from aggregates.
Incidence of Alkali Release in Concrete Dams. Evaluation of Alkalis Releasable by Feldspars
Authors: Menéndez E. , García-Rovés R. , Aldea B.
Published: October 2018

Alkali release from aggregates can constitute a source of alkalis in concrete exposed to wet environments for long periods of time. Feldspars are one of the minerals that can release alkalis to the concrete with time. The formation of reaction products in the interface with the paste due to the alkali release from sodium and potassium feldspars has been observed in a concrete with granite aggregates. This has been observed after more than 25 years of exposure. It is necessary to evaluate the amount of alkalis releasable to define the formulation of concrete before manufacturing. Different test methods have been used to evaluate the potential alkali release from the granite extracted from the same quarry as that used in the dam. The test solutions have different composition and concentration, and different temperatures were used. Finally, the results of potential extraction are evaluated to determine the most realistic with respect to the field behavior.