bluuebunny/crossref_metadata_2025 huggingface dataset:
Traditional Processed Meat Products Re-designed Towards Inulin-rich Functional Foods Reduce Polyps in Two Colorectal Cancer Animal Models
Authors: Fernández Javier , Ledesma Estefanía , Monte Joaquín , Millán Enric , Costa Pedro , de la Fuente Vanessa García , García María Teresa Fernández , Martínez-Camblor Pablo , Villar Claudio J. , Lombó Felipe
Published: October 2019

Inulin-rich foods exert a prebiotic effect, as this polysaccharide is able to enhance beneficial colon microbiota populations, giving rise to the in situ production of short-chain fatty acids (SCFAs) such as propionic and butyric acids. These SCFAs are potent preventive agents against colorectal cancer due to their histone deacetylases inhibitory properties, which induce apoptosis in tumor colonocytes. As colorectal cancer is the fourth most common neoplasia in Europe with 28.2 new cases per 100,000 inhabitants, a cost-effective preventive strategy has been tested in this work by redesigning common porcine meat products (chorizo sausages and cooked ham) consumed by a substantial proportion of the population towards potential colorectal cancer preventive functional foods. In order to test the preventive effect of these inulin-rich meat products against colorectal cancer, an animal model (Rattus norvegicus F344) was used, involving two doses of azoxymethane (10 mg/kg) and two treatments with dextran sodium sulfate (DSS) during a 20-week assay period. Control feed, control sausages, functional sausages (15.7% inulin), control cooked ham and functional cooked ham (10% inulin) were used to feed the corresponding animal cohorts. Then, the animals were sacrificed and their digestive tract tissues were analyzed. The results showed a statistically significant 49% reduction in the number of colon polyps in the functional meat products cohorts with respect to the control meat products animals, as well as an increase in the cecum weight (an indicator of a diet rich in prebiotic fiber), a 51.8% increase in colon propionate production, a 39.1% increase in colon butyrate concentrations, and a reduction in the number of hyperplastic Peyer’s patches. Metagenomics studies also demonstrated colon microbiota differences, revealing a significant increase in Bacteroidetes populations in the functional meat products (mainly due to an increase in Bacteroidaceae and Prevotellaceae families, which include prominent propionate producers), together with a reduction in Firmicutes (especially due to lower Lachnospiraceae populations). However, functional meat products showed a remarkable increase in the anti-inflammatory and fiber-fermentative Blautia genus, which belongs to this Lachnospiraceae family. The functional meat products cohorts also presented a reduction in important pro-inflammatory bacterial populations, such as those of the genus Desulfovibrio and Bilophila. These results were corroborated in a genetic animal model of CRC (F344/NSlc-Apc1588/kyo) that produced similar results. Therefore, processed meat products can be redesigned towards functional prebiotic foods of interest as a cost-effective dietary strategy for preventing colorectal cancer in human populations.
Facile core–shell nanoparticles with controllable antibacterial activity assembled by chemical and biological molecules
Authors: Guo Lixia , Wang Haoping , Wang Yunxia , Feng Liheng
Published: October 2019

A newly switchable antibacterial self-assembly was developed by conjugated polymer nanoparticles, DNA, Hoechst 33258 and deoxyribonuclease I.
Recent advances regarding the impacts of engineered nanomaterials on the anaerobic ammonium oxidation process: performances and mechanisms
Authors: Li Gui-Feng , Huang Bao-Cheng , Zhang Zheng-Zhe , Cheng Ya-Fei , Fan Nian-Si , Jin Ren-Cun
Published: October 2019

The impacts of engineered nanomaterials on the performance of the anaerobic ammonium oxidation process and their intoxication mechanisms are summarized.
Computational screening of metal–organic frameworks for biogas purification
Authors: Demir Hakan , Cramer Christopher J. , Siepmann J. Ilja
Published: October 2019

A hierarchical screening process is used to find a potentially top-performing metal–organic framework for biogas purification.
Analysis of the transcription factors and their regulatory roles during a step-by-step differentiation of induced pluripotent stem cells into hepatocyte-like cells
Authors: Tauran Yannick , Poulain Stéphane , Lereau-Bernier Myriam , Danoy Mathieu , Shinohara Marie , Segard Bertrand-David , Kato Sachi , Kido Taketomo , Miyajima Atsushi , Sakai Yasuyuki , Plessy Charles , Leclerc Eric
Published: October 2019

Human induced pluripotent stem cells have been investigated through a sequential in vitro step-by-step differentiation into hepatocyte-like cells using nanoCAGE, an original method for promoters, transcription factors, and transcriptome analysis.
Hollow carbon nanofibers as high-performance anode materials for sodium-ion batteries
Authors: Han Haixia , Chen Xiaoyang , Qian Jiangfeng , Zhong Faping , Feng Xiangming , Chen Weihua , Ai Xinping , Yang Hanxi , Cao Yuliang
Published: October 2019

Hollow carbon nanofibers are fabricated by pyrolyzation of a polyaniline hollow nanofiber precursor, exhibiting impressive cycling stability for sodium-ion batteries.
Fabrication of an anode composed of a N, S co-doped carbon nanotube hollow architecture with CoS2 confined within: toward Li and Na storage
Authors: Wang Junling , Wang Jingwen , Han Longfei , Liao Can , Cai Wei , Kan Yongchun , Hu Yuan
Published: October 2019

In this work, we prepared a N, S co-doped carbon nanotube hollow architecture confining CoS2 (CoS2/NSCNHF) derived from bimetal–organic-frameworks. The rationally designed structure possesses excellent Li+/Na+ storage performances.
Diblock brush-arm star copolymers via a core-first/graft-from approach using γ-cyclodextrin and ROMP: a modular platform for drug delivery
Authors: Li Ruihan , Li Xuesong , Zhang Yipei , Delawder Abigail O. , Colley Nathan D. , Whiting Emma A. , Barnes Jonathan C.
Published: October 2019

Water-soluble diblock brush-arm star copolymers using γ-CD-based core-first ring-opening metathesis polymerization, allowing for anticancer drug delivery via host–guest interaction.
Helicity induction and memory effect in poly(biphenylylacetylene)s bearing various functional groups and their use as switchable chiral stationary phases for HPLC
Authors: Ishidate Ryoma , Sato Toru , Ikai Tomoyuki , Kanoh Shigeyoshi , Yashima Eiji , Maeda Katsuhiro
Published: October 2019

Poly(biphenylylacetylene)s bearing various functional groups were demonstrated to be used as elution order switchable chiral stationary phases for HPLC.
Solution-processable reduced graphene oxide template layer for molecular orientation control of organic semiconductors
Authors: Yamada Keitaro , Okamoto Michitaka , Sakurai Minori , Suenobu Tomoyoshi , Nakayama Ken-ichi
Published: October 2019

An ultrasmooth reduced graphene oxide (rGO) film indicated a strong templating effect inducing a face-on orientation for copper phthalocyanine.
Biocompatible quantum dot-antibody conjugate for cell imaging, targeting and fluorometric immunoassay: crosslinking, characterization and applications
Authors: Sahoo Soubhagya Laxmi , Liu Chi-Hsien , Kumari Monika , Wu Wei-Chi , Wang Chun-Chao
Published: October 2019

A layer-by-layer covalent strategy is developed including the modification of QDs using BSA as a stabilizing agent and then anti-human immunoglobulin antibody as a targeting moiety.
A label-free aptamer-based biosensor for microRNA detection by the RNA-regulated fluorescence of malachite green
Authors: Wang Honghong , Wang Hui , Zhang Mai , Jia Yuting , Li Zhengping
Published: October 2019

A label-free fluorescent aptamer-based biosensor is developed for the detection of microRNA by the fluorescence regulation of malachite green.
Raman observation of a molecular signaling pathway of apoptotic cells induced by photothermal therapy
Authors: Xing Yingfang , Cai Zhewei , Xu Meijuan , Ju Wenzheng , Luo Xiaojun , Hu Yaojuan , Liu Xiaoyan , Kang Tuli , Wu Ping , Cai Chenxin , Zhu Jun-Jie
Published: October 2019

A molecular signaling pathway of apoptosis induced by photothermal therapy was revealed by surface-enhanced Raman spectroscopy.
LiMg(IO3)3: an excellent SHG material designed by single-site aliovalent substitution
Authors: Chen Jin , Hu Chun-Li , Mao Fei-Fei , Zhang Xiao-Han , Yang Bing-Ping , Mao Jiang-Gao
Published: October 2019

An excellent SHG iodate, LiMg(IO3)3, has been obtained via the aliovalent substitution of defect-containing MIV sites with ordered Mg2+.
Chemical fixation of carbon dioxide catalyzed via covalent triazine frameworks as metal free heterogeneous catalysts without a cocatalyst
Authors: Li Yi-Meng , Yang Li , Sun Lei , Ma Lei , Deng Wei-Qiao , Li Zhen
Published: October 2019

2,5-DCP-CTF performs as an efficient metal-free catalyst in the chemical fixation of CO2 under mild conditions without the employment of any co-catalyst.
Multiple modulations of pyrite nickel sulfidesviametal heteroatom doping engineering for boosting alkaline and neutral hydrogen evolution
Authors: Zeng Lingyou , Liu Zhi , Sun Kaian , Chen Yanju , Zhao Jinchong , Chen Yinjuan , Pan Yuan , Lu Yukun , Liu Yunqi , Liu Chenguang
Published: October 2019

Dual regulation of active sites and kineticsviaMn heteroatom doping engineering in pyrite NiS2for boosting alkaline and neutral hydrogen evolution.
Covalent organic framework-modulated interfacial polymerization for ultrathin desalination membranes
Authors: Yuan Jinqiu , Wu Mengyuan , Wu Hong , Liu Yanan , You Xinda , Zhang Runnan , Su Yanlei , Yang Hao , Shen Jianliang , Jiang Zhongyi
Published: October 2019

Covalent organic framework modulated interfacial polymerization enables the formation of ultrathin polyamide membrane for high-performance desalination.
Crucial impact of reduction on the photocarrier dynamics of SrTiO3 powders studied by transient absorption spectroscopy
Authors: Vequizo Junie Jhon M. , Nishioka Shunta , Hyodo Junji , Yamazaki Yoshihiro , Maeda Kazuhiko , Yamakata Akira
Published: October 2019

Photoexcited electrons in non-reduced SrTiO3 are deeply trapped in the defects, whereas in reduced SrTiO3, these electrons are preferably occupying shallower traps. In effect, the available electrons for H2 production largely increase.
2.5 V salt-in-water supercapacitors based on alkali type double salt/carbon composite anode
Authors: Qin Tianfeng , Xu Zhiyuan , Wang Zilei , Peng Shanglong , He Deyan
Published: October 2019

By electrodepositing Zn/Zn4SO4(OH)6·4H2O on microporous carbon cloth modified with basic functional groups, we successfully achieved aqueous high-voltage carbon/carbon supercapacitors stably working at the voltage windows of 2.1 V, 2.3 V and 2.5 V.
Developing an O3 type layered oxide cathode and its application in 18650 commercial type Na-ion batteries
Authors: Tripathi Abhinav , Rudola Ashish , Gajjela Satyanarayana Reddy , Xi Shibo , Balaya Palani
Published: October 2019

Effect of Ti4+ and Ni2+ substitutions is studied to develop Na-ion cathode materials. Operando XRD and ex situ EXAFS is done to study structural events during battery operation. Finally NCNFMT vs. HC 18650 batteries using 1 M NaBF4 in tetraglyme as the electrolyte.
Facile solution synthesis of FeNx atom clusters supported on nitrogen-enriched graphene carbon aerogels with superb electrocatalytic performance toward the oxygen reduction reaction
Authors: Hong Min , Nie Jianhang , Zhang Xiaohua , Zhang Pengfei , Meng Qin , Huang Junlin , Xu Zhenyang , Du Cuicui , Chen Jinhua
Published: October 2019

FeNx atom clusters anchored on N-enriched graphene carbon aerogel exhibited high mass specific activity (840 mA mgFe−1 at 0.80 V), positive E1/2 (0.90 V vs. RHE), excellent durability and strong tolerance to methanol and SCN− in alkaline media.
Single-step exfoliation of black phosphorus and deposition of phosphorene via bipolar electrochemistry for capacitive energy storage application
Authors: Rabiei Baboukani Amin , Khakpour Iman , Drozd Vadym , Allagui Anis , Wang Chunlei
Published: October 2019

A single-step, facile, and environmentally friendly exfoliation and deposition of bulk BP into phosphorene via bipolar electrochemistry results in capacitive energy storage with outstanding power density and long-term stability.
PdP2 nanoparticles–reduced graphene oxide for electrocatalytic N2 conversion to NH3 under ambient conditions
Authors: Xie Hongtao , Geng Qin , Zhu Xiaojuan , Luo Yonglan , Chang Le , Niu Xiaobin , Shi Xifeng , Asiri Abdullah M. , Gao Shuyan , Wang Zhiming , Sun Xuping
Published: October 2019

PdP2-reduced graphene oxide hybrid is efficient for ambient electrocatalytic N2-to-NH3 fixation with an NH3 yield rate of 30.3 μg h−1 mgcat.−1 and a faradaic efficiency of 12.56%.
Fenton-reaction-stimulative nanoparticles decorated with a reactive-oxygen-species (ROS)-responsive molecular switch for ROS amplification and triple negative breast cancer therapy
Authors: Zhang Jun , Zuo Tiantian , Liang Xiao , Xu Yingxin , Yang Yifan , Fang Tianxu , Li Jing , Chen Daijie , Shen Qi
Published: October 2019

P@P/H NPs were rapidly disintegrated in response to ROS, and this further enhanced ROS level in tumor cells via the Fenton reaction.
Collaborative Efforts to Improve Opportunities for Children With Intellectual and Developmental Disabilities in Ghana
Authors: Baigorri Miriam , Crowley Catherine , Bukari Belinda
Published: October 2019

Purpose

Although efforts have been made in Ghana to include children with disabilities in mainstream society, children continue to face barriers to education, rehabilitation, and support services. This article describes collaborative efforts made by the authors, U.S. speech-language pathologists, and a Ghanaian special educator to improve communication skills and academic opportunities for children with intellectual and developmental disabilities. Such initiatives include bringing alternative and augmentative communication into the classroom and establishing activities that promote linguistic concepts and literacy skills.

Conclusion

This article is an effort to provide a service delivery model for speech-language pathologists and professionals working in low- and middle-income countries. In addition to the authors' efforts described in the article, this also highlights national initiatives that have improved the services for children with intellectual and developmental disabilities in Ghana.
Ecological and cenotic characteristics of communities involving the species of Prunella vulgaris L. and Prunella grandiflora L. in the Middle and Southern Urals
Authors: Bolotnik Elizaveta
Published: October 2019

On the territory of the Middle and Southern Urals, P. vulgaris is found in pine, spruce-pine, birch forests, meadows and in artificial spruce-larch forest plantations; P. grandiflora − in birch forests, less often on meadows. P. vulgaris is confined to half-open places or light-forest with moistening from sub-forest-meadow to wet forest-meadow with not very rich or rather rich soils. P. grandiflora grows in semi-open spaces and in light forests with moistening from wet-steppe to dry-forest-meadow with rather poor soils. Both species are found on very poor soils and the ones that are poor in nitrogen, having a weak acidic and acidic soil medium. According to the soil acidity factor, the amplitude of the ecological space of P. grandiflora coenopopulations on studied territory goes beyond the ranges of the ecological range according to the scales of D.N. Tsyganov.
Rare species of psammophyte flora in transboundary areas of Southern Siberia and Mongolia
Authors: Doronkin Vladimir , Vlasova Natalya , Ochgerel Nanjidsuren , Enkhtuya Luvsanbaldan , Munkh-Erdene Tovuudorj
Published: October 2019

Data on distribution of 3 rare species which occur in sandy arrays of cross-border territories of Southern Siberia and Mongolia are provided: Iris psammocola, Iris loczyi (Iridaceae) and Vicia tsydenii (Fabaceae), a brief characteristic of their cenopopulation is given.
Rare Plants and Plant Communities of the Projected “Togul” National Park (Altai Region)
Authors: Elesova Natalja , Silanteva Marina , Sokolova Liudmila
Published: October 2019

The value of the Salair Ridge territory for the creation of the “Togul” National Natural Park is determined primarily by the natural complex of black coniferous forests with the participation of relict plant species of the Miocene-Pliocene coniferous-deciduous forests and a group of early flowering ephemeroid plants, old-aged Pinus sibirica, Picea obovata and linden forests and a variety of tall grasses. Based on the performed geobotanical descriptions, the phytocenotic characteristic of linden forests was compiled. Information is provided on the location of 10 rare and endangered species of plants and fungi found during a survey of the territory of the planned national park.
Polyvariation of the development Scutellaria L. species and the structure of their populations in Siberia
Authors: Guseva Alexandra , Cheryomushkina Vera
Published: October 2019

Structure of coenopopulations and polyvariance of the development of species of the genus Scutellaria in Siberia were described. Species of the genus are semi-wood and grassy life forms. The formation of different life forms is confined to specific habitats. In a number of species (S. galericulata, S. grandiflora и S. supina), the life form is changing. Dimensional polyvariance of individuals of S. scordiifolia in different habitats was found. The ontogenetic structure of coenopopulations is diverse; 3 types of spectrum are formed: left-sided, centered, and right-hand. In individuals of S. supina and S. tuvensis, the duration of ontogenesis and the duration of individual ontogenetic conditions are influenced by living conditions. The polyvariance of selfmaintenance was revealed in S. supina, the transition from completely seed self-maintenance to mixed − seed reproduction in combination with vegetative. The spatial structure and density of coenopopulations vary depending on the habitat conditions. The spatial structure of the studied species is also determined by the peculiarities of self-maintenance of coenopopulations. The change in density is also associated with the mobility of the substrate on steep, rocky mountain slopes in vegetatively stationary species and with projective cover in vegetatively mobile ones.
The status of some herbaceous species populations in West Siberian subtaiga forests
Authors: Komarevtseva Elizaveta , Kurochkina Natalia , Gordeeva Natalia
Published: October 2019

The coenopopulations of Bupleurum longifolium L., Pulmonaria mollis Wulf, ex Hornem., Angelica sylvestris L were studied in the territory of the experimental forest park of CSBG (Novosibirsk). The coenopopulations have a left-sided spectrum. The main method of reproduction of species − seed. In the intact pine-birch forest, coenopopulations of species with a low density of individuals develop. In weakly disturbed habitats (selective felling, periodic haying) the densities of individuals in B. longifolium, P. mollis increases, as well as old (in B. longifolium) or juvenile (in A. sylvestris) individuals fall out. Improving lighting here causes an increase in the size parameters of generative individuals and the acceleration of their development.
Peculiarities of successional processes taking place in artificial phytocenoses on the Kuzbass coal mining dumps
Authors: Lamanova Tatiana , Sheremet Natalia , Doronkin Vladimir
Published: October 2019

The article presents results of the long-term studies of the structure and production of agrophytocenoses, established on the coal mining dumps in the Kuznetsk basin forest steppe zone. Agrophytocenoses were established on the leveled dumps by seeding grasses and legumes. Another set of control agrophytocenoses was established by the same technic on zonal soil. Seeds were provided by the laboratories of the Central Siberian Botanical Garden SB RAS, Novosibirsk. After 30 yrs of observations it was found that agrophytocenoses on the coal mining dumps did not have initial stage, as well as stage of spontaneous species invasion. Elimination of Trifolium pratense and Arrhenatherum elatius from coal mining dumps phytocenoses took place 3-4 yrs later than from agrophytocenoses on zonal soils. Species did not eliminate totally, but remained in communities with increased or decreased relative abundances. Significant number of species displayed fluctuation, rather than succession in course of 30 yrs development on the coal mining dumps. These phytocenoses It was also found that agrophytocenoses on the coal mining dumps have high long-term production potential.
Flora and vegetation of the Minusinsk town and its vicinity
Authors: Larina Maria , Zyryanova Olga
Published: October 2019

The article demonstrates the results of studies about species composition of lichens, fungi, mosses and higher vascular plants found in the ribbon pine forests in the Minusinsk town and its vicinity. The article based on the original authors’ herbaria. 62 basidial macromycetes, 80 lichens and 210 species of the higher vascular plants were found in the studied area. The plant communities and their dominant species were studied.
Epiphytic lichens of the dark coniferous forest within the outbreak of Ips sexdentatus Boern. in the Maly Abakan site of the Khakassky Nature Reserve
Authors: Makeeva Evgenia , Zyryanova Olga
Published: October 2019

The article demonstrates the results of studies epiphytic lichens species composition from the territory of the Khakassky State Nature Reserve, conducted in the alpine cedar taiga at the location of the Ips sexdentatus outbreak. There were two types of sample plots: damaged plots, characterized by shriveled cedars infected by bark beetle and flawless plots containing forest stand of primarily vigorous trees. All sample plots were found to comprise 46 species of lichens belonging to 24 genera and 13 families. It was observed that plots infected by bark beetle were inhabited by lichens with poor vital activities manifested by their damaged thalli. However, there were no evident changes in the epiphytic lichen communities on floristic and coenotic levels.
Ecological features and new location of the rare relict speciesCraniospermum pseudotuvinicum(Boraginaceae)
Authors: Ovchinnikova Svetlana
Published: October 2019

Information on the new location of the high-mountainous speciesCraniospermum pseudotuvinicum(endemic to Mongolia) is given. The morphological and ecological-cenotic features of the species, as well as known locations within the Central Mongolian-Altai province are considered.
The Impact of Climate Change on Betula tortuosa Ledeb. Radial Increment on the Eastern Macroslope of Kuznetsk Alatau
Authors: Petrov Il’ya A. , Golyukov Alexey S. , Shushpanov Alexandr S. , Kharuk Viacheslav
Published: October 2019

The climatic response of birch in eastern Kuznetzky Alatau Mountains (Siberia) were analysed based on dendrochronology data. Studied climate variables included temperature, precipitation and root zone moisture (RZM). Periods with maximal correlations for each variable were found. It was established that radial increment was limited by June temperature and July RZM. Correlations of radial increment and ecoclimatic factors were higher when a negative anomalies of respective factor occurred. To estimate the advancement rate of birch trees along elevation gradient, three elevational transects were laid in mountain forest-tundra ecotone. Estimated advancement rate is about 0.5 m per year. Although temperature have a stimulating effect on birch’s radial increment and advancement on elevation gradient in Kuznetzky Alatau Mountains, some depressions in radial increment corresponds to years with soil moisture decrease.
Space structure and diversity of island vegetation on Torey lakes in drought period in Daursky reserve
Authors: Saraeva Lyudmila
Published: October 2019

The Torey lakes of Daursky reserve belong to wetlands of international importance and are located in the south of Zabaikalsky krai. In 2009, in the drought period, we studied the space structure and diversity of the vegetation on five islands in the Torey lakes. The results of ecological-phytocenotic classification are presented. 52 associations related to 15 formations and 4 types of island vegetation on the Torey lakes are identified.
To the issue of third edition of the Red List of the Kemerovo region
Authors: Sheremetova Svetlana , Khrustaleva Irina
Published: October 2019

Recent systematic floristic researches cause the necessity of changes and amendments in the lists of rare and disappearing plants, included in the Red Book of the Kemerovo region of first (2000) and second (2012) edition. New recommendations for third edition are proposed. 142 species will be included into third edition of the Red Book of the Kemerovo region 32 more species will be added for the first time, 18 species will be removed. Only 46 species will keep both the presence and statuses (categories) of a rarity; 34 species, presented in all three lists, will change their category (status).
Dynamics of the adventive component in the flora of Barnaul
Authors: Silanteva Marina , Terekhina Tatyana
Published: October 2019

The article considers the results of the floristic study as well as the analysis of the archival records and literature data in order to reveal the dynamics and the specific features of the adventive element formation in the flora of Barnaul throughout its history. It provides data on the time of some species introduction into the city area.
Dynamic analysis of voltage angle droop controlled HVDC systems in curative congestion management scenarios
Authors: Zhou Yang , Dalhues Stefan , Häger Ulf
Published: October 2019

The integration of the voltage-source converter based high voltage direct current (VSC-HVDC) system makes the set-point of its active power adaptive to the changes in the power flow, and contributes to the curative congestion management. To further exploit the dynamic behavior of a hybrid AC/DC power system in curative congestion management scenarios, this paper investigates a novel control scheme for voltage angle droop controlled HVDC (VAD-HVDC) systems. The proposed scheme to alleviate the circuit overload is estimated firstly by calculating the severity index when the power flow changes under N-1 situations. Then the voltage angle controlled HVDC system is applied on the modified IEEE 39-bus 10-machine test power system for the time-domain simulation. The dynamic behavior in the HVDC station validates that the VAD control can stabilize the DC voltage and possess a good ability against interference. In addition, the dynamic characteristics analysis on the AC transmission lines proves that the hybrid AC/DC system integrated with the VAD controlled HVDC system are in possession of good stability after the N-1 contingency event. The VAD controller employed in the HVDC system is capable of effective congestion management to mitigate the critical loadings on the transmission lines.
Effect of Energy Storages on Flexibility and Cyber Resilience of Electric Networks
Authors: Kolosok Irina , Korkina Elena , Kurbatsky Victor
Published: October 2019

When planning and managing the present-day and future transformed electric power systems (EPS), such comparatively new properties as flexibility and cyber resilience shall be taken into account along with EPS conventional properties, such as Reliability, Security, Survivability, and Vulnerability. Large-scale introduction of renewable energy sources notably lowers the EPS flexibility. Installation of Energy Storages allows compensation of power production imbalance occurred when using renewable energy sources, which makes the energy system more robust, but lowers its cyber security. The paper considers the main performances and models of Energy Storages, their impact on flexibility and cyber security of electric networks; it also presents the technique for quantifying the flexibility of a network with Energy Storages, and identifies most promising directions of studies in this area.
Trust in control: a trust model for power system network assessment
Authors: Brand Michael , Babazadeh Davood , Lehnhoff Sebastian , Engel Dominik
Published: October 2019

The question of whether a process variable transmitted from a device in the field to a power system control center is trustworthy is of high importance nowadays. Traditional bad data detection schemes have their limits in cases of elaborated cyberattacks and cascading failures in a system of systems such as a digitalized power system. This paper proposes a trust model designed for power system network assessment (PSNA). Different to other domains, where trust models already exist (e.g., OC-Trust for organic computing systems), the environment for PSNA is more centralized, and the focus lies on other facets than in organic computing due to the nature of the environment. Therefore, OC-Trust is tailored by categorizing its facets regarding their relevance for PSNA on the one hand. On the other hand, the trust model is extended to realize context-sensitive intersections of trust values. Furthermore, an example of an instantiation of the resulting PSNA-Trust model is given. Two security metrics and one credibility metric based on literature are presented as well as an equation for a context-sensitive intersection.
The Use of Machine Learning in Situational Management in Relation to the Tasks of the Power Industry
Authors: Massel Lyudmila V. , Gerget Olga M. , Massel Aleksei G. , Mamedov Timur G.
Published: October 2019

The article discusses the application possibilities of machine learning methods (artificial neural networks (ANN) and genetic algorithms (GA) to form management actions when applying the concept of situational management for intelligent support of strategic decision-making on the development of energy. At the first stage, the application of ANN to classify extreme situations in the energy sector, to select the most effective management actions (preventive measures) in order to prevent a critical situation from developing into an emergency. Genetic algorithms are proposed to be used to determine the weighting coefficients for training ANN. An algorithm for constructing a classifier based on a neural network and a demonstration task using data on generation and consumption of the United Electric Power System of Siberia are presented.
Digital Transformation of Russia Energy Sector: Methods and Intelligent Technologies of Scientific Substantiation of Strategic Decisions
Authors: Massel Lyudmila V. , Massel Aleksei G.
Published: October 2019

The problems of energy sector digital transformation in Russia are considered. The problem of insufficient use of the results available in scientific organizations of the energy profile is highlighted. Attention is drawn to the need for intelligent support for the justification and adoption of strategic decisions on the development of technological infrastructure (digital transformation of energy sector). An approach is proposed to solve the problem of integration of software, information support and intelligent information technologies developed at Melentiev Energy Systems Institute of SB RAS. The architecture of a multi-agent intelligent environment providing this integration, and a multi-agent methodological approach to its development are considered.
Power quality and losses in 0.38 kV rural distribution networks
Authors: Naumov Igor V. , Tretiakov Alexander N. , Yakupova Marina N. , Fedurinova Elvira G. , Karamov Dmitriy N.
Published: October 2019

The guidelines for the design of rural and urban power supply systems do not consider the issues of reactive power compensation and reduction in additional losses due to unbalanced and non-sinusoidal conditions. At the same time, today’s rural power consumers have a great number of non-linear loads in their residential premises. Moreover, the unbalanced phase currents and voltages are an established fact. The paper aims to demonstrate the extent to which power quality and losses vary in real rural 0.38 kV networks. To this end, the objectives were posed to study the operation of two facilities: 1- switchgear at the cottage (with an installed capacity of 15 kW); 2- switchgear at the communal entrance hallway for 60 apartments in an apartment building (with an installed capacity of 75 kW).
A Study on the Black Start Process of a real Distribution Network with CHP plants and BESS
Authors: Strunck Christoph , Albrecht Marvin , Meindl Gerhard , Rehtanz Christian
Published: October 2019

The power system experiences many changes, which are leading to new challenges. The electric energy will no longer be generated only by large power plants, but rather by numerous decentralized energy resources that are primarily installed in distribution grids. In particular, power system restoration processes after a blackout will face new challenges. However, new opportunities by the widespread use of renewable energy resources arise. In this paper, the black start capability of a real distribution grid in Germany, operated by SWW Wunsiedel, will be investigated, as it has a high share of decentralised energy resources and a BESS with black start capability. For this purpose, the medium voltage level of the distribution grid is investigated with static load flow simulations to evaluate the best black start strategy. The driving forces of this black start concept are an 8 MW BESS unit and a 13.5 MW CHP plant.
An underactuated drift-free left-invariant control system on the Lie group ISO(3,1)
Authors: Pop Camelia , Iosif Ioana
Published: October 2019

The purpose of our paper is to study a class of left-invariant, drift-free optimal control problem on the Lie group ISO(3,1). The left-invariant, drift-free optimal control problems involves finding a trajectory-control pair on ISO(3,1), which minimize a cost function and satisfies the given dynamical constrains and boundary conditions in a fixed time. The problem is lifted to the cotangent bundle T*G using the optimal Hamiltonian on G*, where the maximum principle yields the optimal control. We use energy methods (Arnold’s method, in this case) to give sufficient conditions fornonlinear stability of the equilibrium states. Around this equilibrium states we might be able to find the periodical orbits using Moser's theorem, as future work. For the some unstable equilibrium states, a quadratic control is considered in order to stabilize the dynamics.
Numerical solution of the first order nonlinear differen-tial equations with the mixed nonlinear conditions by using PLSM(comparison with Bernstein polynomials method)
Authors: Lăpădat Marioara , Razzaghi Mohsen , Paşca Mădălina Sofia
Published: October 2019

We use the Polynomial Least Squares Method (PLSM), which allows us to compute analytical approximate polynomial solutions for nonlinear ordinary differential equations with the mixed nonlinear conditions. The accuracy of the method is illustrated by a comparison with approximate solutions previously computed using Bernstein polynomials method.
On the solutions of the generalized Lotka-Volterra system
Authors: Bougoffa Lazhar , Khanfer Ammar
Published: October 2019

In this article, under suitable conditions on the coefficients, we derive closed-form solutions and implicit solutions of the generalized Lotka-Volterra system.
Numerical testing of steel beam-to-column bolted extended end-plate connection with haunches
Authors: Jakab Dominiq , Stratan Aurel , Dubina Dan
Published: October 2019

During the European research project entitled EQUALJOINTS (European pre-Qualified steel JOINTS) [1], which recently concluded, the matter of providing a set of pre-qualification procedures for moment resisting beam-to-column connections which are currently used in Europe has been addressed. During the experimental campaign 24 specimens with bolted extended end-plate connections with haunches were tested. The current paper presents the numerical model which has been developed such that numerical testing may be performed to further investigate specific details. In what concerns the material, an isotropic material model has been calibrated and used based on tensile tests of coupons extracted from the specimens to model the actual plastic behaviour. Moreover, the imperfections of the beam have been taken into account using a bucking analysis to model as accurate as possible the specimens tested. The interaction between parts has been modelled using contacts with different interaction laws. The model used for the bolt has been calibrated such that the preloading and failure replicate the behaviour of the actual bolts used in the experiments.
Monitoring system of an energy efficient school building
Authors: Boros Iosif , Stoian Dan , Nagy-György Tamás , Stoian Valeriu
Published: October 2019

The paper presents details regarding the implemented monitoring
system of heat loss, interior comfort and energy consumption particularities of an energy efficient school building in Romania. Despite the fact that there is an emphasis on energy saving and sustainability in the building industry legislation and policies, there are still too few examples of good practice at local level. Recent trends have brought changes in how designers solve specific details like thermal insulation thicknesses and use of renewable energy but further improvement is required for a more detailed understanding of the entire building's energy balance behaviour both on overall and specific details level. Therefore, a complex monitoring system was built in a carefully designed and constructed school building in order to collect relevant real-time data of every specific part of the thermal envelope, the HVAC systems and interior comfort parameters. The main purpose of the system is to highlight the order of magnitude of the differences between the design and the real-time values of the most significant parameters, the importance of each detail and also the need of further research development in this field.
Alerts and Notifications for Smart Citizens
Authors: Vert Silviu , Vasiu Radu
Published: October 2019

Smart cities function on the premises of efficiency and transparency. One of the key requests of smart citizens is to be informed, through modern, digital and personalized means, of issues that might affect them: utility cut-offs, changes in public transportation, exceeding levels of pollutants and so on. In this research, we implement an extension — to an existing smart city notification platform — that consists of a notification and alert module build as a chatbot for Facebook Messenger. We describe the sources of notification data, how we designed the chatbot and current possibilities for users to interact with it and be notified. We also relate on future plans on improving the chatbot.
Hardware and Software Integration of an Electrophoretic display on a smart meter
Authors: Avram Sebastian , Căleanu Cătălin Daniel , Vasiu Radu , Safta Andreea-Mirela , George Belei Horatiu
Published: October 2019

Electronic and smart electricity meters traditionally use as user interface liquid crystal displays due to low cost and proven technology. This paper presents the integration of a flexible electrophoretic display on a smart meter and the possible use cases of such a display. The two main benefit of EPD displays are image retention which can be used as read without power feature and lower power consumption compared to LCD for smart meters. The smart meters available on the market use batteriesor super capacitors for the read without power feature and require each 20ms tenths of mA to displayinformation on the LCD.
Deep Learning Approach for Violence Detection in Urban Areas
Authors: Baba Marius , Gui Vasile , Pescaru Dan
Published: October 2019

Today modern cities tend to grow rapidly. The increased population density brings new challenges in term of public safety. Crime and violence are hard to be detected and managed especially in specific crowd environments like music concerts, sport events or public meetings. To overcome this issue the city administration should implement monitoring systems capable of detecting and analysing such situations. The work presented here combines two approaches that enable implementation of an efficient solution adapted for this purpose. The first one involves sensor networks that prove to be cost effective solution in a smart city environment. They can benefit on the existing surveillance infrastructure and allows rapid deployment. The second approach uses deep learning techniques. They demonstrate outstanding performances in image and actions classification based on a prior learning process. By combining these two approaches we succeed to obtain a real-time and cost-effective solution designed for urban area surveillance networks.
Plasticity in habitat use of two native Ponto-Caspian gobies, Proterorhinus semilunaris and Neogobius fluviatilis: implications for invasive populations
Authors: Top Nildeniz , Karakuş Uğur , Tepeköy Erdi Gökhan , Britton John Robert , Tarkan Ali Serhan
Published: October 2019

The Ponto-Caspian region is an important source area for some invasive gobiid fishes. These fishes have colonised several freshwater ecosystems in Europe, as well as in North America. As knowledge on their habitat utilisation in their native range remains limited, the seasonal habitat uses of Western tubenose goby, Proterorhinus semilunaris and monkey goby Neogobius fluviatilis were studied in four natural lakes in the Marmara Region (NW Turkey). Habitat use of both species was highly variable between the lakes and seasons, with P. semilunaris showing higher plasticity. In general, the main habitats used by P. semilunaris were shallow waters in littoral areas that had vegetation cover, whereas N. fluviatilis consistently used sandy substratum in deeper waters that lacked vegetation. These results suggested there was high plasticity in the habitat utilisation of these two gobiids, especially in P. semilunaris, which potentially facilitates their ability to establish and invade novel environments. The habitats that are especially vulnerable to P. semilunaris invasion are medium size substrates which provide individuals with sufficient interstitial space for refuge. Waters providing differing habitats, such as sandy substrata, might inhibit their colonisation, but are potentially more vulnerable to N. fluviatilis invasion.
Benign fibro-osseous lesions of the jaws: a clinicopathologic study of 98 Tanzanian patients
Authors: Dube Ntokozo C. , Moshy Jeremiah Robert , Vuhahula Edda A. , Sohal Karpal Singh
Published: October 2019

Introduction: The benign fibro-osseous lesions (BFOL) are characterized by replacement of the normal bone by cellular fibrous tissue containing various forms of ossification. They encompass common clinical, radiologic and histopathological features and hence pose considerable diagnostic and therapeutic challenges to clinicians and pathologists. Objective: To analyze the clinico-pathological and radiological features of BFOLs of the jaws in patients treated at Muhimbili National Hospital, Tanzania. Material and methods: A retrospective study of files of patients who were diagnosed with BFOLs from January 2011 to December 2013 was done. The collected information included data on demographic characteristics, the duration of the lesion, location of the lesion, presence of swelling, associated symptoms and reported radiological and histological features. Results: A total of 98 patient's records were retrieved. There was a predominance of females (59, 60.2%), with a male to female ratio of 1:1.5. The patient's age at presentation ranged from 5 years to 75 years with a mean age of 29.81 ± 15.28 years. Four types of BFOLs were encountered. Ossifying fibroma were the most frequent (61.2%), followed by fibrous dysplasia (19.4%). Maxilla was more affected than the mandible. Majority (>70%) of the BFOLs were radio-opaque. The common histological features in all four types of BFOL included presence of: woven bone in fibrous stroma, giant cells, loose collagen and foci of hemorrhage. Conclusion: In this sample, BFOLs, were slightly more prevalent in females than males, affecting individuals below 40 years at large. They showed several overlapping clinical, radiological and histological features; thus a combination of different modalities seems necessary for an accurate diagnosis.
Strategic Knowledge Management as Means of Ensuring the Competitiveness of Railway Transport Enterprises
Authors: Dykan Volodymyr , Ovchynnikova Viktoria , Dykan Valeria , Kalicheva Natalia , Korin Myroslava
Published: October 2019

In article timeliness and expediency of application of strategic management of knowledge as effective means of ensuring competitiveness of the enterprises of railway transport is proved. Analysis of existing models of knowledge management has led to the conclusion that each of the existing models of knowledge management requires certain conditions regarding the possibility of its use. First of all, it is the presence of a stable organizational culture in the enterprise, a favorable moral climate, the initiative of employees, in fact, is a prerequisite for the creation of implicit knowledge, attention to the value of human and intellectual capital on the part of management, as well as the possibility of accumulating knowledge for their further analysis, use and improvement. This created the basis for improving the conceptual provisions of strategic knowledge management in railway transport, revealing management technologies in the following areas: the development of competencies of personnel focused on the implementation of strategic objectives; the creation of a comprehensive integrated information environment that improves the quality of business processes; the implementation of effective interaction of railway transport with stakeholders to improve its image; the formation of knowledge subsystem of economic security management.
Development of a Competitiveness Enhancement Mechanism for National Car Production Enterprises
Authors: Kuzub Antonina
Published: October 2019

The article discusses the development and implementation of a competitiveness enhancement mechanism for national car production enterprises. It indicates the development stages of the competitiveness enhancement mechanism for car production enterprises. Four subsystems making the competitiveness enhancement mechanism for enterprises are distinguished: owners and investors, top management, lower level management and average executives. An algorithm of implementing the competitiveness enhancement mechanism for national car production enterprises has been developed.
Study of Model for Selection of Priorities for Development of Cargo Transportation
Authors: Kuleshov Valerii , Shapoval Ganna , Kutsenko Maksym
Published: October 2019

The transport market of operator companies of various forms of ownership in Ukraine is constantly evolving, but the tasks associated with the selection and implementation of the priorities of the development of the transport market, the provision of railway services by the carriers - owners of rolling stock, are not fully resolved. There is no regulatory framework that determines the procedure for choosing the priorities of transport market development, their status is not defined, the relation of the selected priorities with the budget of Ukraine is not defined. Therefore, the task of improving the mechanism for selecting scientific and technological priorities for the development of these processes is relevant.