bluuebunny/crossref_metadata_2025 huggingface dataset:
Genetic Analysis of Agronomic Traits and Grain Iron and Zinc Concentrations in a Doubled Haploid Population of Rice (Oryza sativa L.)
Authors: Calayugan Mark Ian C. , Formantes Andrea Kariza , Amparado Amery , Descalsota-Empleo Gwen Iris , Nha Chau Thanh , Inabangan-Asilo Mary Ann , Swe Zin Mar , Hernandez Jose E. , Borromeo Teresita H. , Lalusin Antonio G. , Mendioro Merlyn S. , Diaz Ma. Genaleen Q. , Viña Celia B. dela , Reinke Russell , Swamy B. P. Mallikarjuna
Published: February 2020

The development of micronutrient dense rice varieties with good agronomic traits is one of the sustainable and cost-effective approaches for reducing malnutrition. Identification of QTLs for high grain Fe and Zn, yield and yield components helps in precise and faster development of high Fe and Zn rice. We carried out a three-season evaluation using IR05F102 x IR69428 derived doubled-haploid population at IRRI. Inclusive composite interval mapping was carried out using SNP markers and Best Linear Unbiased Estimates of the phenotypic traits. A total of 23 QTLs were identified for eight agronomic traits and grain Fe and Zn concentration that explained 7.2 to 22.0% PV. A QTL by environment interaction analysis confirmed the stability of nine QTLs, including two QTLs for Zn on chromosomes 5 and 12. One epistatic interaction for plant height was significant with 28.4% PVE. Moreover, five QTLs were identified for Fe and Zn that harbor several candidate genes, e.g. OsZIP6 on QTL qZn5.1. A number of QTLs were associated with a combination of greater yield and increased grain Zn levels. These results are useful for development of new rice varieties with good agronomic traits and high grain Zn using MAS, and identification of genetic resources with the novel QTLs for grain Zn.
Perceptual bias is reduced with longer reaction times during visual discrimination
Authors: Dekel Ron , Sagi Dov
Published: February 2020

Fast and slow decisions exhibit distinct behavioral properties, such as the presence of decision bias in faster but not slower responses. This dichotomy is currently explained by assuming that distinct cognitive processes map to separate brain mechanisms. Here, we suggest an alternative single-process account based on the stochastic properties of decision processes. Our experimental results show perceptual biases in a variety of tasks (specifically: learned priors, tilt aftereffect, and tilt illusion) that are much reduced with increasing reaction time. To account for this, we consider a simple yet general explanation: prior and noisy decision-related evidence are integrated serially, with evidence and noise accumulating over time (as in the standard drift diffusion model). With time, owing to noise accumulation, the prior effect is predicted to diminish. This illustrates that a clear behavioral separation—presence vs. absence of bias—may reflect a simple stochastic mechanism.
Stable, yet “naked”, azo radical anion ArNNAr− and dianion ArNNAr2− (Ar = 4-CN-2,6-iPr2-C6H2) with selective CO2 activation
Authors: Wang Wenqing , Tan Gengwen , Feng Rui , Fang Yong , Chen Chao , Ruan Huapeng , Zhao Yue , Wang Xinping
Published: February 2020

The azo radical anion and dianion were isolated and structurally characterized. Their uncoordinated nature enables them to activate CO2.
Degrasyn exhibits antibiotic activity against multi-resistantStaphylococcus aureusby modifying several essential cysteines
Authors: Lee Kyu Myung , Le Philipp , Sieber Stephan A. , Hacker Stephan M.
Published: February 2020

Degrasyn was found to exhibit antibiotic activity against multi-resistantStaphylococcus aureus. Chemical proteomics revealed insights into its mode of action.
Evidence for enzyme catalysed intramolecular [4+2] Diels–Alder cyclization during the biosynthesis of pyrichalasin H
Authors: Hantke Verena , Skellam Elizabeth J. , Cox Russell J.
Published: February 2020

In vivo evidence is presented for the activity of PyiF as the required intramolecular Diels Alderase during the biosynthesis of the cytochalasan pyrichalasin H in the fungus Magnaporthe grisea NI980.
Interfacial synthesis of crystalline two-dimensional cyano-graphdiyne
Authors: Zhang Zhaohui , Wu Chenyu , Pan Qingyan , Shao Feng , Sun Qingzhu , Chen Siqi , Li Zhibo , Zhao Yingjie
Published: February 2020

A well-defined crystalline cyano-functionalized graphdiyne (CN-GDY) is synthesized at a liquid/liquid interface through alkyne–alkyne coupling reactions.
Excited state hydrogen transfer dynamics in phenol–(NH3)2 studied by picosecond UV-near IR-UV time-resolved spectroscopy
Authors: Ishiuchi Shun-ichi , Kamizori Junko , Tsuji Norihiro , Sakai Makoto , Miyazaki Mitsuhiko , Dedonder Claude , Jouvet Christophe , Fujii Masaaki
Published: February 2020

Intersystem crossing from 1πσ* to 3πσ* states traps excited state hydrogen transfer reaction in a bound state formed by 3ππ* and 3πσ* states.
Mechanistic study of hydrazine decomposition on Ir(111)
Authors: Lu Xiuyuan , Francis Samantha , Motta Davide , Dimitratos Nikolaos , Roldan Alberto
Published: February 2020

Theory–experiment evidence of continuous hydrogen generation upon N–N splitting and NH2 assisted dehydrogenation of N2H4 catalysed by metallic Ir(111) catalyst.
Nongenetic engineering strategies for regulating receptor oligomerization in living cells
Authors: Li Jingying , Wang Liping , Tian Jinmiao , Zhou Zhilan , Li Juan , Yang Huanghao
Published: February 2020

Nongenetic strategies for regulating receptor oligomerization in living cells based on DNA, protein, small molecules and physical stimuli.
Closing the loop: life cycle assessment and optimization of a PEMFC platinum-based catalyst recycling process
Authors: Duclos Lucien , Chattot Raphaël , Dubau Laetitia , Thivel Pierre-Xavier , Mandil Guillaume , Laforest Valérie , Bolloli Marco , Vincent Rémi , Svecova Lenka
Published: February 2020

Selective Pt and Co separation has been achieved, recycled Pt/C particles were synthesized, and excellent electrochemical properties have been observed.
Introduction to a manuscript series on the characterization and use of microphysiological systems (MPS) in pharmaceutical safety and ADME applications
Authors: Fabre Kristin , Berridge Brian , Proctor William R. , Ralston Sherry , Will Yvonne , Baran Szczepan W. , Yoder Gorm , Van Vleet Terry R.
Published: February 2020

Opportunities in the drug discovery/development process for potential MPS incorporation.
Tuning product selectivity in the catalytic oxidation of glycerol by employing metal-ZSM-11 materials
Authors: Diguilio Eliana , Galarza Emilce D. , Domine Marcelo E. , Pierella Liliana B. , Renzini María S.
Published: February 2020

Selective oxidation of glycerol towards dihidoxyacetone and lactic acid, employing micro/mesoporous zeolites with copper(ii) and chromium(iii).
High temperature composite membranes based on polybenzimidazole and dendrimer amine functionalized SBA-15 mesoporous silica for fuel cells
Authors: Rajabi Zahra , Javanbakht Mehran , Hooshyari Khadijeh , Badiei Alireza , Adibi Mina
Published: February 2020

In this work SBA-15, a melamine-based functionalized SBA-15 mesoporous silica with a dicationic ionic liquid was used in order to improve the physicochemical properties of phosphoric acid doped polybenzimidazole membranes for application in HT-PEMFCs.
Facile fabrication of Si/Sb/Sb2O3/G@C composite electrodes for high-performance Li-ion batteries
Authors: Sun Feiyuan , Feng Hao , Gao Shilun , Yang Dandan , Yang Huabin
Published: February 2020

Facile fabrication of high-performance Si/Sb/Sb2O3/G@C composite materialviathe ball milling and high temperature calcination process is reported.
Tuning the structure and photoinduced linkage isomerism of tetrapyridine nitrosyl ruthenium(ii) complexes by changing the trans-to-NO coordinated ligand
Authors: Vorobyev Vasily , Mikhailov Artem A. , Komarov Vladislav Yu. , Makhinya Alexander N. , Kostin Gennadiy A.
Published: February 2020

Ruthenium nitrosyl complexes were prepared with various trans-to-NO ligands. These compounds form Ru–ON metastable states upon blue-light excitation and the corresponding thermal stabilities were determined.
Self-organization of octa-phenyl-2,3-naphthalocyaninato zinc floating layers
Authors: Kazak A. V. , Marchenkova M. A. , Dubinina T. V. , Smirnova A. I. , Tomilova L. G. , Rogachev A. V. , Chausov D. N. , Stsiapanau A. A. , Usol’tseva N. V.
Published: February 2020

Formation of thin-film nanomaterials, promising for nanoelectronic applications, with a given structure based on octa-phenyl-2,3-naphthalocyaninato zinc.
Facile synthesis of NiCo2O4-anchored reduced graphene oxide nanocomposites as efficient additives for improving the dehydrogenation behavior of lithium alanate
Authors: Xia Yongpeng , Wei Sheng , Huang Qiang , Li Jianquan , Cen Xinghua , Zhang Huanzhi , Chu Hailiang , Sun Lixian , Xu Fen , Huang Pengru
Published: February 2020

Large surface area and mesoporous structures provided by NiCo2O4@rGO nanocomposites play a synergistic role in remarkably improving the dehydrogenation properties of LiAlH4.
Nitrogen-doped graphene layer-encapsulated NiFe bimetallic nanoparticles synthesized by an arc discharge method for a highly efficient microwave absorber
Authors: Qu Xinghao , Zhou Yuanliang , Li Xiyang , Javid Muhammad , Huang Feirong , Zhang Xuefeng , Dong Xinglong , Zhang Zhidong
Published: February 2020

NiFe@NC nanocomposites exhibit excellent microwave absorption benefiting from their core@shell structures and synergistic effects of dielectric/magnetic losses.
Cooperation of cerium oxide nanoparticles and soluble molecular catalysts for alcohol oxidation
Authors: Laga Stephanie M. , Townsend Tanya M. , O'Connor Abby R. , Mayer James M.
Published: February 2020

Nano-cerium oxide and organometallic catalysts cooperate in anaerobic and aerobic alcohol oxidations.
The engineering of stilbazolium/iodocuprate hybrids with optical/electrical performances by modulating inter-molecular charge transfer among H-aggregated chromophores
Authors: Wu Wei , Lin Xiang-Ling , Liu Qian , He Yan , Huang You-Ren , Chen Bin , Li Hao-Hong , Chen Zhi-Rong
Published: February 2020

Good electrical bistability performances in stilbazolium/iodocuprate hybrids stem from the better face-to-face π⋯π stacking interactions induced by the substituents with appropriate lengths and electronic natures.
A universal strategy to enhance the absolute sensitivity for temperature detection in bright Er3+/Yb3+ doped double perovskite Gd2ZnTiO6 phosphors
Authors: Wu Youfusheng , Xu Shouliang , Xiao Zhongliang , Lai Fengqin , Huang Jianhui , Fu Junxiang , Ye Xinyu , You Weixiong
Published: February 2020

We report a universal strategy consisting of I1/I2 and I2/I1 parts to enhance the SA for temperature sensing applications.
The synthesis of fluorescent benzofuro[2,3-c]pyridines via palladium-catalyzed heteroaromatic C–H addition and sequential tandem cyclization
Authors: Xiong Wenzhang , Chen Zhongyan , Shao Yinlin , Li Renhao , Hu Kun , Chen Jiuxi
Published: February 2020

A Pd-catalyzed tandem reaction of 2-(cyanomethoxy)chalcones with heteroarenes (such as thiophenes, furans, pyrroles and indoles) for the synthesis of fluorescent benzofuro[2,3-c]pyridines.
Bi-functional silica nanoparticles for simultaneous enhancement of mechanical strength and swelling capacity of hydrogels
Authors: Sujan Majharul Islam , Sarkar Stephen Don , Sultana Salma , Bushra Labiba , Tareq Rizwan , Roy Chanchal Kumar , Azam Md. Shafiul
Published: February 2020

Bi-functional silica crosslinkers simultaneously enhance the mechanical strength and swelling capacity of the polyacrylic acid and polyacrylamide hydrogels.
A single-phase brookite TiO2 nanoparticle bridge enhances the stability of perovskite solar cells
Authors: Shahiduzzaman Md. , Kulkarni Ashish , Visal Sem , Wang LiangLe , Nakano Masahiro , Karakawa Makoto , Takahashi Kohshin , Umezu Shinjiro , Masuda Atsushi , Iwamori Satoru , Isomura Masao , Miyasaka Tsutomu , Tomita Koji , Taima Tetsuya
Published: February 2020

The high potential of Brookite TiO2 nanoparticles (NPs) bridges between perovskite and TiO2 CL, resulted in improved stability of PSCs.
Solvent selection and Pt decoration towards enhanced photocatalytic CO2 reduction over CsPbBr3 perovskite single crystals
Authors: Chen Yi-Xin , Xu Yang-Fan , Wang Xu-Dong , Chen Hong-Yan , Kuang Dai-Bin
Published: February 2020

Solvent optimization and co-catalyst deposition would trigger over 25-fold enhancement in CO2 reduction over the CsPbBr3 photocatalyst.
Response of a raft of particles to a local indentation
Authors: He Wei , Sun Yiwei , Dinsmore Anthony D.
Published: February 2020

Interfaces coated with a raft of adsorbed particles are common in nature and industry. We measured the stiffness and particle displacements in model rafts under normal forces. Our data collapse into common trends and provide new insights.
Thermodynamic control over energy dissipation modes in dual-network hydrogels based on metal–ligand coordination
Authors: Ahmadi Mostafa , Seiffert Sebastian
Published: February 2020

Multiple energy dissipating modes are introduced into a model network hydrogel by metallo-supramolecular bonds and regulated by their association thermodynamics.
Mechanically programmed 2D and 3D liquid crystal elastomers at macro- and microscale via two-step photocrosslinking
Authors: Lee Jieun , Guo Yuanhang , Choi Yu-Jin , Jung Soonho , Seol Daehee , Choi Subi , Kim Jae-Hyuk , Kim Yunseok , Jeong Kwang-Un , Ahn Suk-kyun
Published: February 2020

A facile method for fabricating 3D-shaped liquid crystal elastomers at the macro- and microscales was developed by mechanical programming coupled with two-step photocrosslinking.
Insight into the formation and permeability of ionic liquid unilamellar vesicles by molecular dynamics simulation
Authors: Jiang Kun , Liu Xiaomin , He Hongyan , Wang Jianji , Zhang Suojiang
Published: February 2020

The formation mechanism and permeability properties of [C12mim][Sal] vesicles are investigated by molecular dynamics simulation.
Disulfide bond-based self-crosslinked carbon-dots for turn-on fluorescence imaging of GSH in living cells
Authors: Li Jia , Wang Yuhui , Sun Shan , Lv A-Man , Jiang Kai , Li Yike , Li Zhongjun , Lin Hengwei
Published: February 2020

A self-quenched nanoprobe built on a disulfide bond-based crosslink of carbon-dots has been constructed for intracellular GSH sensing.
Vescalagin and castalagin reduce the toxicity of amyloid-beta42 oligomers through the remodelling of its secondary structure
Authors: Araújo Ana R. , Camero Sergio , Taboada Pablo , Reis Rui L. , Pires Ricardo A.
Published: February 2020

The isomers vescalagin and castalagin protect SH-SY5Y cells from Aβ42-mediated death.
Correction: Diastereoselective synthesis of 1,3-disubstituted isoindolines and sultams via bronsted acid catalysis
Authors: Tao Ye , Gilbertson Scott R.
Published: February 2020

Correction for ‘Diastereoselective synthesis of 1,3-disubstituted isoindolines and sultams via bronsted acid catalysis’ by Ye Tao et al., Chem. Commun., 2018, 54, 11292–11295.
Mesoporous Pt@PtM (M = Co, Ni) cage-bell nanostructures toward methanol electro-oxidation
Authors: Yin Shuli , Wang Ziqiang , Li Chunjie , Yu Hongjie , Deng Kai , Xu You , Li Xiaonian , Wang Liang , Wang Hongjing
Published: February 2020

Direct synthesis of mesoporous Pt@PtM (M = Co, Ni) cage-bell nanostructures is reported for methanol electro-oxidation.
Why do warm Neptunes present nonzero eccentricity?
Authors: Correia A. C. M. , Bourrier V. , Delisle J.-B.
Published: February 2020

Most Neptune-mass planets in close-in orbits (orbital periods less than a few days) present nonzero eccentricity, typically around 0.15. This is somehow unexpected, as these planets undergo strong tidal dissipation that should circularize their orbits in a timescale shorter than the age of the system. In this paper we discuss some mechanisms that can oppose to bodily tides, namely, thermal atmospheric tides, evaporation of the atmosphere, and excitation from a distant companion. In the first two cases, the eccentricity can increase consistently, while in the last one, the eccentricity can only be excited for a limited amount of time (that may nevertheless exceed the age of the system). We show the limitations of these different mechanisms and how some of them could, depending on specific properties of the observed planetary systems, account for their presently observed eccentricities.
Repeating fast radio bursts with WSRT/Apertif
Authors: Oostrum L. C. , Maan Y. , van Leeuwen J. , Connor L. , Petroff E. , Attema J. J. , Bast J. E. , Gardenier D. W. , Hargreaves J. E. , Kooistra E. , van der Schuur D. , Sclocco A. , Smits R. , Straal S. M. , ter Veen S. , Vohl D. , Adams E. A. K. , Adebahr B. , de Blok W. J. G. , van den Brink R. H. , van Cappellen W. A. , Coolen A. H. W. M. , Damstra S. , van Diepen G. N. J. , Frank B. S. , Hess K. M. , van der Hulst J. M. , Hut B. , Ivashina M. V. , Loose G. M. , Lucero D. M. , Mika Á. , Morganti R. H. , Moss V. A. , Mulder H. , Norden M. J. , Oosterloo T. A. , Orrú E. , de Reijer J. P. R. , Ruiter M. , Vermaas N. J. , Wijnholds S. J. , Ziemke J.
Published: February 2020

Context. Repeating fast radio bursts (FRBs) present excellent opportunities to identify FRB progenitors and host environments as well as to decipher the underlying emission mechanism. Detailed studies of repeating FRBs might also hold clues as to the origin of FRBs as a population.

Aims. We aim to detect bursts from the first two repeating FRBs, FRB 121102 (R1) and FRB 180814.J0422+73 (R2), and to characterise their repeat statistics. We also want to significantly improve the sky localisation of R2 and identify its host galaxy.

Methods. We used the Westerbork Synthesis Radio Telescope to conduct extensive follow-up of these two repeating FRBs. The new phased-array feed system, Apertif, allows one to cover the entire sky position uncertainty of R2 with fine spatial resolution in a single pointing. The data were searched for bursts around the known dispersion measures of the two sources. We characterise the energy distribution and the clustering of detected R1 bursts.

Results. We detected 30 bursts from R1. The non-Poissonian nature is clearly evident from the burst arrival times, which is consistent with earlier claims. Our measurements indicate a dispersion measure (DM) of 563.5(2) pc cm−3, suggesting a significant increase in DM over the past few years. Assuming a constant position angle across the burst, we place an upper limit of 8% on the linear polarisation fraction for the brightest burst in our sample. We did not detect any bursts from R2.

Conclusions. A single power-law might not fit the R1 burst energy distribution across the full energy range or widely separated detections. Our observations provide improved constraints on the clustering of R1 bursts. Our stringent upper limits on the linear polarisation fraction imply a significant depolarisation, either intrinsic to the emission mechanism or caused by the intervening medium at 1400 MHz, which is not observed at higher frequencies. The non-detection of any bursts from R2, despite nearly 300 h of observations, implies either a highly clustered nature of the bursts, a steep spectral index, or a combination of the two assuming that the source is still active. Another possibility is that R2 has turned off completely, either permanently or for an extended period of time.
The method for calculation and optimization of parameters of synchronous electric machines with permanent magnets as part of the generating and driving complexes
Authors: Safin A.R. , Ivshin I.V. , Petrov T.I.
Published: February 2020

New methodical solutions have been developed in the field of creating energy-efficient synchronous electrical machines with permanent magnets, designed to generate electrical energy as part of autonomous power plants and to drive various mechanisms.
Three-phase power factor corrector with direct power control and power supply of the unbalanced industrial network
Authors: Sorokin D.A. , Volskiy S.I. , Skorokhod Y.Y.
Published: February 2020

Nowadays three-phase power factor correctors (PFC) became widely used. This is dictated by strict requirements of the international electrical technical commission standards to harmonic composition of current supplied by three-phase industrial network. New schematic technical version of three-phase PFC having direct power control and improved efficiency factor is presented. Mathematical description of power component and control system taking in account its functioning depending upon asymmetrical three-phase input voltage was fulfilled. The electrical processes in the presented PFC was analysed by means of computer simulation. The obtained results are of interest to the persons engaged in the development of electrical energy systems and complexes to which higher requirements in respect to power loss reduction and reliable functioning in case of three-phase asymmetrical industrial network are imposed.
Improving the efficiency of energy complexes and heat supply systems using mathematical modeling methods at the operational stage
Authors: Gaponenko S.O. , Kondratiev A.E. , Shakurova R.Z.
Published: February 2020

Improving the efficiency and energy saving of energy complexes and heat supply systems is one the most important fields of the Russian economy modernization. In the field of industrial heat and power engineering, the increasing energy efficiency is an urgent task both at the design stage and at the equipment operation stage. For these purposes, numerical modeling methods are actively used. The paper presents the developed mathematical model of the pipeline located in the soil, which allows improving efficiency of energy systems and heat supply systems at the stage of operation. Also this paper presents the results of laboratory studies, namely, the informative frequency ranges of the investigated pipeline for further assessment of its technical condition.
Management organization accounting for the responsibility centers
Authors: Akhmetova I.G. , Derbenyova A.A. , Dyganova R.R. , Husainova E.A.
Published: February 2020

The paper is devoted to the problem of applying management accounting for responsibility centers in practice, also revealed technology for practical implementation in production. In order to obtain reliable data on the effectiveness of this separation technique, a deep research is needed, taking into account the industries characteristics in which it can be used.
Improving the energy efficiency of oil production using identification and prediction of operating modes of production wells based on data analysis methods, machine learning and neural networks
Authors: Sagdatullin A.M.
Published: February 2020

Currently, there is a need to improve the systems and control of pumping equipment in the oil and gas production and oil and gas transport industries. Therefore, an adaptive neural network control system for an electric drive of a production well was developed. The task of expanding the functional capabilities of asynchronous electric motors control of the oil and gas production system using the methods of neural networks is solved. We have developed software modules of the well drive control system based on the neural network, an identification system, and a scheme to adapt the control processes to changing load parameters, that is, to dynamic load, to implement the entire system for real-time control of the highspeed process. In this paper, based on a model of an identification block that includes a multilayered neural network of direct propagation, the control of the well system was implemented. The neural network of the proposed system was trained on the basis of the error back-propagation algorithm, and the identification unit works as a forecaster of system operation modes based on the error prediction. In the initial stage of the model adaptation, some fluctuations of the torque are observed at the output of the neural network, which is associated with new operating conditions and underestimated level of learning. However, the identification object and control system is able to maintain an error at minimum values and adapt the control system to a new conditions, which confirms the reliability of the proposed scheme.
Information model of the structure of the heat and power system of pulp and paper production and a systematic approach to its improvement
Authors: Plotnikova L.V. , Chilikova I.I. , Khramova E.V. , Plotnikov V.V.
Published: February 2020

The stages of the system analysis of an industrial energy system with a complex structure are considered by the example of pulp and paper production. The software of the structural and thermodynamic stages of the analysis is presented. The results of thermodynamic calculations of the elements of the energy system by the optimal sequence are given. A variant of the system modernization using a heat pump is presented.
Demonstration and laboratory complex for the production of heat energy using sources of unconventional and waste energy
Authors: Plotnikova L.V. , Faizullin A.A. , Gavrilov A.S. , Hacıbalayev N.M.
Published: February 2020

The description of the work of a laboratory unit for the production of thermal energy that simulates the use of solar energy and the use of wastewater energy is presented. The installation includes a heat pump, solar collector and waste water tank. Presents options forwiring elements of the unit.
Developing the model of normal operation of starter motor traction relays
Authors: Puzakov Andrey
Published: February 2020

Malfunction of motor starter traction relays cause the impossibility of the reliable start of internal combustion engines which, if the worst comes to the worst, can create the risk of traffic accident occurrence. Electric resistances of traction relay coils are structural and diagnostic parameters at the same time. Emergence and development of failures causes the change of magnetomotive force generated by the traction relay coils. Critical values of electric resistances correspond to failures of traction relay coils, i.e., inability to perform the built-in functions. The developed mathematical model of traction relay normal operation includes the amount of effort generated and voltage loss on contacts as controlled values for the drive mechanism and the starter electric motor, respectively. The results obtained contribute to the development of the method of motor-and-tractor starter diagnostics without removing it from the engine.
Natural gas supply for industrial enterprises in the conditions of the Russian market: current state and development trends
Authors: Varlamov N.V. , Kirshina I.A.
Published: February 2020

The article considers the existing problems in natural gas supply for industrial enterprises in the Russian market. The analysis is performed with regards to the use of natural gas in various sectors of economy. Gas consumption in electric power industry and metallurgy is growing at the highest rate. Gasification of the Russian regions leads to the dynamic development of gas distribution system. The use of natural gas in industry makes a significant contribution to the state budget and to the socio-economic situation in the regions.
Economic Indicators Improvement due to the Introduction of Energy-Efficient Technologies
Authors: Nikolaeva E.K. , Yudina N.A. , Dunaeva T.U. , Livshits S.A. , Enikeeva S.R.
Published: February 2020

The paper describes issues concerning energy efficiency improving in the Russian power engineering economics. The energy efficiency applicability, the technical and the economic energy efficiency potential, the government energy efficiency tools are substantiated. The results of energy efficiency program implementation are presented.
The influence of catalysts on the combustion of petroleum coke in the stationary fluidized bed mode
Authors: Sharipov A.A. , Vankov Y.V. , Sadikov K.G. , Saifullin E.R.
Published: February 2020

It is known that petroleum coke, a product of deep processing of oil, can be used as fuel in power boilers. The method of petroleum coke burning in a fluidized bed is the most optimal to complete its combustion. To improve the combustion characteristics of this fuel, we studied the influence of catalysts on the petroleum coke burning in the simulation mode of a stationary fluidized bed. The laboratory setup is described. The results of the experiments are given.
Development of methods for the formation of operation modes of hydropower systems using machine learning
Authors: Mardikhanov Ayrat , Sharifullin Vilen , Golenishchev-Kutuzov A.V. , Ziganshin Sh.G.
Published: February 2020

The paper describes the method for finding a compromise solution during formation of operation modes of hydropower systems (cascade of hydropower plants). The software solution “Energy system of the HPP cascade” (http://hydrocascade.com) was implemented based on the developed methodology. In the existing model, in order to improve the accuracy of forecasting the parameters of the generating equipment of hydroelectric power plants and hydraulic structures, machine learning methods were used. The new forecast model has increased the accuracy of the forecasts by an average of 3.67%.
Management of technical condition of heat and power facilities based on a risk-oriented approach
Authors: Valiev R.N. , Izmaylova E.V. , Kharisov E Sh , Rotach M.R. , Busarov A.V.
Published: February 2020

Ensuring the uninterrupted production of electric and thermal energy is a priority in the generating equipment operation. Nowadays the management of the equipment state at most of Russia’s energy enterprises is based on a system of scheduled preventive maintenance. This system does not allow taking into account the economic component of technological impacts, which, in turn, leads either to “under maintenance” or to “over-servicing” of equipment. All energy companies are faced with the task of optimizing equipment costs, while ensuring the required level of reliability. To solve this problem, production asset management systems are used. The main task of managing production assets is to ensure a balance between equipment costs and the risks of its failure. The result of the implementation of asset management systems is the formation of balanced plans for repairs, replacements, upgrades and maintenance of equipment.
Improving the reliability of operation of electromechanical devices by means of ionistor-battery backup
Authors: Biały W , Stepanova E.M. , Zatsepina V.I. , Zatsepin E.P. , Skomorokhov P.I.
Published: February 2020

This article is devoted to the problem of improving the operation reliability of electromechanical devices and devices at electric power industry facilities. Particular attention is paid to the fact that in the Russian power system electromechanical devices and devices designed for a voltage class of 110 kV and higher are still the majority compared to microprocessor and microelectronic devices. Given their long service life and the inability to promptly replace all devices at once, improving the reliability of their operation is highly relevant. A schematic solution to the problem is developed. The scientific novelty of the proposed solution is of the fact that the redundant power supply circuit with operating current of electromechanical devices offers a consolidated use of innovative electric power storage devices, namely ionistors and classic rechargeable batteries combined according to a special circuit. This solution maximizes the operation reliability of both electromechanical devices and devices themselves, as well as their automatic control.
Algorithm and methods of assessment the efficiency of innovative-investment projects in the field of renewable energy sources
Authors: Magasheva I S-M , Ilinykh D.A. , Ultan S.I.
Published: February 2020

The article presents a universal algorithm for evaluating the efficiency of innovative-investment projects in the field of renewable energy. A comparative analysis of methods for assessment the efficiency of implementation and development of renewable energy sources described in the research studies of the Russian and foreign authors is performed. The features and main indicators of such projects are noted. The most suitable methodology in terms of feasibility of involving renewable energy sources in a particular company, was identified for Russian realities.
Transformation of the global energy resources market as a challenge for Russia’s energy security
Authors: Demidova E.V. , Avilova V.V.
Published: February 2020

We have analyzed the main trends of development of the global energy resources market, as well the positions of countries and major companies that have influence on global energy security. It also considers principal threats and prospects of preserving the national energy security of Russia.
Key performance indicators of major companies: a study on Russian metallurgical industry
Authors: Baklanovskaya Daria , Goguadze Marat , Shmatko Alexey
Published: February 2020

The development of the metallurgical industry requires investing in the environmental safety of processes and technologies of metal processing, as well as to the measures aimed at energy costs reduction. We will look at the economic impact of reducing production costs by saving resources and improving the efficiency of the energy complex. The financial effect of reducing energy consumption per unit of production can be achieved by optimizing the purchase of energy resources, modes of operation of technological and support equipment, improving the management of the company’s energy complex. The article examines the most important indicators of the operating and financial activities of the three companies in the steel industry—Novolipetsk and Magnitogorsk Metallurgical Plants, as well as Severstal PJSC. The financial stability of these companies and the agility of their capital are quite high, and their fixed assets are financed by their own funds. Companies are also financially stable in the short term, as evidenced by the high current liquidity ratios (2 and above), and their own capital exceeds borrowing by 1.5 to 2 times. Thus, we can conclude that they are operationally efficient and have good financial sustainability in the short and long term.
Development strategies of modern enterprises: a study on Russian metallurgical industry
Authors: Baklanovskaya Daria , Goguadze Marat , Shamina Lyubov
Published: February 2020

The development of the metal processing industry requires paying attention both to the environmental safety of technologies of metal processing and to the energy costs. We will look at the economic impact of reducing production costs by saving resources and using environmental engineering tools. Minimizing the cost of protecting the air and water, soils and perennial plantings, recycling and disposal of waste and protecting natural landscapes are an important aspect of the company’s development strategy. The article discusses the implementation of elements of strategies announced by the largest steel companies—Novolipetsk and Magnitogorsk Metallurgical Plants, and Severstal PJSC. The definition of strategy has been given. The strategy, on the one hand, is presented as an element of the enterprise’s interaction with the external environment. On the other hand, it is seen from the point of view of the company’s activity on three levels: corporate–business–functional, each of which, in its turn, consists of certain elements. We highlight the main elements of company’s strategies, which are (generalized) as a combination of operational efficiency and cost reduction (functional strategies)—for all the companies, as well as market leadership (corporate strategy)—only for NLMP. The SWOT-analysis of the activities of all companies highlighted common characteristics of their traits: low growth of the world and domestic economy, low level of use of metallurgical capacity worldwide; the policy of protectionism that replaced globalization, the introduction of duties to enter the markets, the fact that domestic companies have their own resource base, the full production cycle, and other factors.As a general conclusion, despite the complexity of the external environment, companies try to adhere to the stated strategy and maintain high performance of operating efficiency and dividends. Companies can be considered to be confirming to their strategies and a system of planned indicators.
Preliminary researches on conditions to extract alchol soluble proteins of leaves of Wedelia trilobata (L.) Hitchc.
Authors: Qiu Liguo , Zhao Gan , Li Tuanna
Published: February 2020

The conditions to extract alchol soluble proteins of leaves of Wedelia trilobata (L.) Hitchc. were discussed. When the extractant was alcohol, the weight of leave(g) -to- volume of 75% alcohol solution (mL) ratio was 1:10, temperature for extraction was 50°Cand the extraction period was 2hrs, the concentration of alcohol solution needed for the best extraction effect was 95% (V/V). When the extractant was 75% alcohol solution, the temperature for extraction was 50°Cand the extraction period was 2hrs, the weight of leave(g) -to- volume of 75% alcohol solution (mL) ratio needed for the best extraction effect was 1:20. When the extractant was 75% alcohol solution, the weight of leave(g) -to- volume of 75% alcohol solution (mL) ratio was 1:10 and the extraction period was 2 hrs, the temperature needed for the best extraction effect was 55°C. When the extractant was 75% alcohol solution, the weight of leave(g) -to- volume of 75% alcohol solution (mL) ratio was 1:10 and the temperature for extraction was 50°C, the extraction period needed for the best extraction effect was 2hrs.
The Influence of Environmental Factors on College Students’ Online Catering Ordering
Authors: Chen Jia
Published: February 2020

The catering O2O platform has greatly enriched people’s catering options, saving the cost of catering enterprises and consumers, and thus has achieved great development in recent years. The data provided by the O2O platform provides a good condition for us to study the impact of natural environmental factors on food and beverage consumption. With the help of ‘Eleme’ app, we collected the online catering data of about 30 restaurants around Zhongshan Vocational College, and established a multiple regression model for the online catering sales, then we used this model to study the impact of weather, wind, temperature, air pollution, and weekend/holiday on online catering orders. Our results showed that the online catering orders increased gradually with increase of the rainfall and the temperature. This is probably because the rainfall and high temperature increase the cost of people going out to eat, and thus increase the possibility of online ordering; air pollution and the increase in wind power did not significantly affect the online catering orders, which may be due to the fact that these two factors did not reach the level of serious impact on people’s activities during the study period. The weekend/holiday effect was very significant in this study, and people significantly increased the online ordering on weekends or holidays, probably because people were having rest. For the first time, our research uses O2O platform data to quantitatively study the impact of natural environmental factors on online catering sales, and our research provides an important management reference for online catering enterprises
Daily accumulation of melatonin and gene expression in chinese cherry
Authors: Wang Xin , Shen Tian , Hu Peng , Liu Fangren , Zhang Xuefeng , Zhou Gui-hong , Liang Dong , Xia Hui
Published: February 2020

To explore the accumulation characteristics of melatonin and underline mechanism in leaves of chinese cherry, the daily changes of melatonin content and the expression of synthetic genes were determined. The results showed that melatonin content increased gradually during the day and midnight, reaching the peak at 2:00 a.m, and then began to decrease, indicating that light regulate the synthesis of melatonin in plants. The expression profile of 5 melatonin synthesis genes was investigated by qRT-PCR, among them the mRNA transcript of PacSNAT, PacASMT and PacT5H2 increased and then decreased with time prolonging, in accordance with changes of melatonin content, indicating their key role in melatonin synthesis.
Physicochemical and Functional Properties of Lactobacillus Fermented Soybean Milk
Authors: Yi Ruokun , Tan Fang , Zhao Xin
Published: February 2020

In this research, the physicochemical and functional properties of Lactobacillus fermented soybean milk have been studied by testing the pH value, total acidity, viable bacteria count, amino acid nitrogen, and active isoflavones count of single strain and mixed strain fermented soybean milk. The results showed that, the nutritional value of fermented soybean milk was higher than that of unfermented soybean milk in general. At the same time, mixed strain fermented soybean milk showed better results than single strain in the above testing. Lactobacillus bulgaricus and Lactobacillus plantarum isolated from traditional fermented yogurt in Xinjiang can be used together as starter culture to soybean milk fermentation that can produce more beneficial components.
Research and application of new multimodal transport equipment-swap bodies in China
Authors: Chuan-jin Ou , Bing-tao Li
Published: February 2020

Swap bodies emerged in Germany in the 1960s and is now a very mature and widely used product in Europe. Compared with Europe, the use of swap bodies in China started late. The application of swap bodies can effectively improve the technical level of the swap trailer transport equipment and accelerate the transformation of the modern road transport industry. This paper comprehensively introduces the size and transportation advantages of swap bodies, discusses the problems existing in the course of development, and expounds its prospect, providing a reference for the promotion and application of swap bodies in China.
Promotion and Application of Innovative Technology in the Construction of Yunmao Expressway Green Road
Authors: Han Fuqing , Ma Zengqi , Wang Weili , He Guoguo , Shao Shegang
Published: February 2020

With Yunfu Luoding city to Maoming Xinyi city highway as the support, builders focus on introducing innovative technology in the process of creating green road demonstration project, promoting energy conservation and emission reduction, reducing common quality problems, improving the technical level and management level of green road construction, and playing a reference role for the scientific application of innovative technology in common national and provincial highways.
Understanding Spatial and Temporal Change Patterns of Population in Urban Areas Using Mobile Phone Data
Authors: Liang Tianwen , Liu Huan , Zhang Zheng
Published: February 2020

The wide application of information computing technology has allowed for the emergence of big data on tracing human activities. Therefore, it provides an opportunity to explore temporal profile of population changes in geographical area subdivisions. In this paper, we present a multi-step method to characterize and approximate temporal changes of population in a geographical area subdivision using eigen decomposition. Datasets in weekday and weekend are decomposed to obtain the principal temporal change profiles in Xiamen, China. The Principal Components are common patterns of temporal population changes shared by most geographical area subdivisions. Its corresponding elements in eigenvectors could be regard as a coefficient to principal components. Then, a measure, which is the similarity of each eigenvector to a basis vector, that could characterize the temporal population change is established. Based on this, the coupling interaction between population changes and land use characteristics is explored using this measure. It shows that it is restricted by land use characteristics and also is a reflection of population changes over time. These results provided an insight on understanding temporal population change patterns and it would help to improve urban planning and establish a job-housing balance.
Comparative Study on Environmental Benefits of Using low-Sulphur Oil and Shore Power Technology for Ship Berthing
Authors: He Weijian , Chen Rongchang , Li Tao , Hu Bing , Tian Yujun , Meng Weizhong
Published: February 2020

In order to compare the environmental benefits of two emission reduction measures, i.e. using low-sulphur oil and shore power technology, this paper takes the ships arriving at Guangzhou port as an example, based on the ship data of entry and departure visa of Guangzhou port in 2015, and uses statistical analysis to determine the relationship between different ship types of diesel engines, ship berthing time and ship deadweight tonnage, and based on the use of low-sulphur oil and berthing using shore power air pollutants emission On the basis of emission factors and diesel engine load, the environmental benefits of the two emission reduction measures are calculated by the calculation model established by the dynamic method. The results show that:(1) in 2015, when ships berthing in Guangzhou port used low-sulphur oil with sulphur content of 0.5%, PM10, NOx, SOx and CO2 decreased by 231.6t, 165.5t, 2039.3t and 0t respectively, when using low-sulphur oil with sulphur content of 0.1%, PM10, NOX, SOx and CO2 decreased by 244.1t, 517.1t, 2382.7t and 0t respectively. when ships berthing in Guangzhou port used shore power, PM, NOx, SOx and CO2 decreased by 283.8t, 2975.6t, 2407.7t and - 3782.2t respectively. (2) compared with the use of low sulphur oil, the use of shore power by berthing ships has a significant advantage in NOx emission reduction. In terms of particulate matter, SOX and CO2 emission reduction, there is no significant difference between the two measures.
Research of 3-Tier Mobility Stations System with bike and car sharing— Case study of small–scale city in Germany
Authors: Wang Wei , Su Shun , Fu Mengying , Nong Yonsorena , Scriba Thomas , Fadhil Dimas Numan
Published: February 2020

This paper proposed an innovative strategy for planning multimodal, integrated, intelligent, and sustainable mobility by applying 3-tiers mobility stations system combine with car sharing and bike sharing, which aims to promoting the accessibility with available transportation systems and enhance the intramodality and utilization of non-motorized transportation modes. Through the case study of the Fürstenfeldbruck city region in Germany, the 3-tiers mobility stations system concept and its planning criteria and indicators were proposed. And mobility service offerings and location selection of stations were analyzed by considering demand and coverage. Subsequently, evaluation methods based on the pre-defined indicators were implemented to the case study. The planning process is target-oriented and based on relevant structural data analysis.
Research on the Evaluation of Ecological Assets Loss in Railway Construction Project Route Selection
Authors: Min Liu , Huansheng Shi , Chunlei Ji , Xiaqing Chen
Published: February 2020

At present, the route selection of railway construction projects from the perspective of environmental protection fails to objectively and comprehensively reflecting environmental protection requirements. Therefore, incorporating ecological asset assessment into the route selection of railway construction projects is conducive to promoting environmental protection to participate in railway route selection and improve railway route selection. This article summarizes the current status of railway route selection, identifies the existing problems in railway environmental route selection, and combines the research progress of ecological asset assessment, and proposes the assessment content and evaluation index system of ecological asset assessment in railway environmental route selection, and points out the future research prospects.