bluuebunny/crossref_metadata_2025_split huggingface dataset:
Proposal for fiber-optic data acquisition system for Baikal-GVD
Authors: Allakhverdyan V.A. , Avrorin A.D. , Avrorin A.V. , Aynutdinov V.M. , Bannasch R. , Bardаčová Z. , Belolaptikov I.A. , Borina I.V. , Brudanin V.B. , Budnev N.M. , Dik V.Y. , Domogatsky G.V. , Doroshenko A.A. , Dvornický R. , Dyachok A.N. , Dzhilbkibaev Zh.-A.M. , Eckerová E. , Elzhov T.V. , Fajt L. , Fialkovsky S.V. , Gafarov A.R. , Golubkov K.V. , Gorshkov N.S. , Gress T.I. , Katulin M.S. , Kebkal K.G. , Kebkal O.G. , Khramov E.V. , Kolbin M.M. , Konischev K.V. , Kopański K.A. , Korobchenko A.V. , Koshechkin A.P. , Kozhin V.A. , Kruglov M.V. , Kryukov M.K. , Kulepov V.F. , Malecki Pa. , Malyshkin Y.M. , Milenin M.B. , Mirgazov R.R. , Naumov D.V. , Nazari V. , Noga W. , Petukhov D.P. , Pliskovsky E.N. , Rozanov M.I. , Rushay V.D. , Ryabov E.V. , Safronov G.B. , Shaybonov B.A. , Shelepov M.D. , Šimkovic F. , Sirenko A.E. , Skurikhin A.V. , Solovjev A.G. , Sorokovikov M.N. , Štekl I. , Stromakov A.P. , Sushenok E.O. , Suvorova O.V. , Tabolenko V.A. , Tarashansky B.A. , Yablokova Y.V. , Yakovlev S.A. , Zaborov D.N. 
Published: November 2021

Abstract
The first stage of the construction of the Baikal-GVD deep underwater neutrino telescope is planned to be completed in 2024. For the second stage of the detector deployment, a data acquisition system based on fiber-optic technologies has been proposed, which will allow for increased data throughput and more flexible trigger conditions. A dedicated test facility has been built and deployed at the Baikal-GVD site to test the new technological solutions. We present the principles of operation and results of tests of the new data acquisition system.
Characterization of the scintillation time response of liquid argon detectors for dark matter search
Authors: Agnes P. , De Cecco S. , Fan A. , Fiorillo G. , Franco D. , Galbiati C. , Giganti C. , Korga G. , Lebois M. , Mandarano A. , Martoff C.J. , Pagani L. , Pantic E. , Razeto A. , Renshaw A.L. , Riffard Q. , Schlitzer B. , Tonazzo A. , Wang H. , Wilson J.N. 
Published: November 2021

Abstract
The scintillation time response of liquid argon has a key
role in the discrimination of electronic backgrounds in dark matter
search experiments. However, its extraordinary rejection power can
be affected by various detector effects such as the delayed light
emission of TetraPhenyl Butadiene, the most commonly used wavelength
shifter, and the electric drift field applied in Time Projection
Chambers. In this work, we characterized the TetraPhenyl Butadiene
delayed response and the dependence of the pulse shape
discrimination on the electric field, exploiting the data acquired
with the ARIS, a small-scale single-phase liquid argon detector
exposed to monochromatic neutron and gamma sources at the ALTO
facility of IJC Lab in Orsay.
Performance of Michigan sMDT prototype chambers for the HL-LHC ATLAS muon detector upgrade
Authors: Nelson K. , Guo Y. , Amidei D. , Diehl E. 
Published: November 2021

Abstract
A new small-diameter Monitored Drift Tube (sMDT) chamber has
been developed for the muon spectrometer of the ATLAS experiment to
handle the higher collision rates expected at the CERN High
Luminosity Large Hadron Collider (HL-LHC). This paper presents
measurements of the tracking resolution and hit efficiency of two
prototype sMDT chambers constructed at the University of
Michigan. Using cosmic-ray muons the sMDT tracking resolution of
103.7 ± 8.1 μm was measured for one chamber and
101.8 ± 7.8 μm for the other, compared with a design
resolution of 106 μm. A further tracking resolution
improvement to 83.4 ± 7.8 μm was obtained by using new
high-gain readout electronics which will be added for HL-LHC. An
average tracking efficiency of (98.5 ± 0.2)% was found for both
chambers. The methodology used to determine the detector tracking
resolution and efficiency, including reconstruction of sMDT data and
a Geant4 simulation of the test chamber, is presented in detail.
Data-driven geometric system identification for shape-underactuated dissipative systems
Authors: Bittner Brian , Hatton Ross L , Revzen Shai 
Published: November 2021

Abstract
Modeling system dynamics becomes challenging when the properties of individual system components cannot be directly measured, and often requires identification of properties from observed motion. In this paper, we show that systems whose movement is highly dissipative have features which provide an opportunity to more easily identify models and more quickly optimize motions than would be possible with general techniques. Geometric mechanics provides means for reduction of the dynamics by environmental homogeneity, while the dissipative nature minimizes the role of second order (inertial) features in the dynamics. Here we extend the tools of geometric system identification to ‘shape-underactuated dissipative systems (SUDS)’—systems whose motions are more dissipative than inertial, but whose actuation is restricted to a subset of the body shape coordinates. Many animal motions are SUDS, including micro-swimmers such as nematodes and flagellated bacteria, and granular locomotors such as snakes and lizards. Many soft robots are also SUDS, particularly robots that incorporate highly damped series elastic actuators to reduce the rigidity of their interactions with their environments during locomotion and manipulation. We motivate the use of SUDS models, and validate their ability to predict motion of a variety of simulated viscous swimming platforms. For a large class of SUDS, we show how the shape velocity actuation inputs can be directly converted into torque inputs, suggesting that systems with soft pneumatic or dielectric elastomer actuators can be modeled with the tools presented. Based on fundamental assumptions in the physics, we show how our model complexity scales linearly with the number of passive shape coordinates. This scaling offers a large reduction on the number of trials needed to identify the system model from experimental data, and may reduce overfitting. The sample efficiency of our method suggests its use in modeling, control, and optimization in robotics, and as a tool for the study of organismal motion in friction dominated regimes.
Recycling of Waste Plastic into Fine-Grained Concrete Without Strength Reduction
Authors: Chekanovich M , Romanenko S , Andriievska Ya 
Published: November 2021

Abstract
The problem of recycling plastic waste is quite acute both in Ukraine and for most countries of the world. The use of plastic processing products can be considered an urgent problem of society from the point of view of environmental protection and environmental safety. Today, developments are underway in the field of using polymers in one of the largest sectors of production – the construction industry. In recent years, the scientific community has been actively studying the issue of using plastic waste in the manufacture of reinforced concrete structures, that is, partial replacement of the filler with plastic particles. At the same time, in the short term, sufficient resources of plastic waste will be provided, which will come in value for collection and recycling. The use of plastic in concrete production technology will not only reduce the negative impact of waste on the environment, but also develop concrete of more sustainable quality and lower cost. The aim of the study is determining the amount of plastic waste that can be utilized through introducing it into concrete mix without reducing the strength of the concrete. Here we have considered the issue of the impact of the degree of plastic grinding on concrete strength. The research findings show that the introduction of plastic in an amount up to 3.5% of the volume of concrete as a substitute for the aggregate does not reduce its compressive or flexural strength.
Species diversity of unionid mussels (Mollusca: Bivalvia: Unionidae) as a bioindicator of the state water environment of river basins of Ukraine
Authors: Shevchuk L , Vasilіeva L , Romaniuk R , Pavliuchenko O 
Published: November 2021

Abstract
Species diversity and frequency index of bivalve mollusks’ of unionid family are researched within river basins of Ukraine. The largest frequency index of mussels is identified in the Prypiat and Desna basins (84 and 79% respectively), then (as the indicator declines) – the Dnieper and Severskiy Donets basins (74 and 67%), the Southern Bug and Danube (47 and 46%), the Southern and Western Bug (47 and 28%), the Crimea (17%). No mollusks were found in the Azov basin at all. Most often (33%) there were found groups consisting of only three unpretentious species (Unio pictorum, U. tumidus, Anodonta anatina). In general, settlements from one to three species make up 70% of all researched collecting sites. Settlements formed by four species are identified only in 23% of habitats. Only 6% of settlements consisted of five aboriginal species and about 1% – of six. Locations where six species lived together were identified only in the Danube and Prypiat basins. There are no settlements of five species in the Western Bug and Desna basins at all, and there are not any even four species settlements in the Crimea. The obtained data can be used for organizing environmental activities and assessing water environment quality
The problem of the Black Sea pollution in Odessa region of Ukraine
Authors: Shypotilova O , Kozhanov A , Lohinova L , Lohinov O 
Published: November 2021

Abstract
The article considers the problem of Black Sea pollution in Odessa region. The researchers made a comparative analysis based on archival and modern materials, statistics on the assessment of pollution of the Black Sea coast around the city of Odessa, as well as adjacent areas to the region. The urgent task of Ukraine as a maritime state is to ensure optimal and sustainable functioning of the maritime complex. The Black Sea has been significantly affected by anthropogenic and man-made activities, which affects its water regime and properties. Therefore, researchers raise the issue of efficient use of natural resources as one of the most important conditions for sustainable social-economic development. In the article we come to the conclusion that the Black Sea ecosystem is affected by the reduction of fresh water, which leads to the influx of inorganic, organic and toxic substances etc. Thus, the researchers highlighted important issues of marine pollution in Ukraine, trying to draw the attention of scientists and the public to address pressing issues and find additional funding for the conservation of the Black Sea ecosystem.
Methodological approach to the assessment of the level of intellectualization of the green economy in terms of sustainable development
Authors: Orlovska Ju , Dryhola K , Khlivitskaya A 
Published: November 2021

Abstract
As part of the global course for sustainable development and the green economy, socio-economic processes are acquiring intellectual content. The purpose of this study is to form a methodology for assessing the level of intellectualization of the green economy. The author’s index GIEI has been formed in this research on the basis of selected indicators that reflect green policy, green intellectual capital and goals of the green economy. Within the index, there are three subindices, which are assigned weight coefficients, which were calculated based on the results of expert analysis. The results showed that the green policy has the greatest weight coefficient. The obtained index can be used to assess the level of intellectualization of the green economy of world countries and to provide a basis for further research on key elements of the world’s green policies to identify effective tools that can be used in the green development strategies of states.
Socio-economic determinants of the ecosystem of sustainable development of Ukraine
Authors: Lopuschnyak H , Chala N , Poplavska O 
Published: November 2021

Abstract
Now the world has felt the effects of events (pandemic, digitalization, etc.), which provoked a change in the socio-economic ecosystem, which the authors propose to understand as a set of objects and subjects, and grouped according to certain interests, including on professional interests related to the definition of priorities and directions of adaptation of society and the state to the existing environment, which includes rules, laws, moral and ethical norms, and thus forms a single whole with them. Realizing the irreversibility of these events and their consequences, it becomes obvious that the transformation of national ecosystems is accelerating, especially under the influence of the ecological program. Thus, the process of adaptation to the new ecosystem of state development and ensuring its sustainability actualizes the study of determinants of socio-economic nature. The author’s research, based on his own methodology, proves that the key factors in ensuring the sustainability of this ecosystem are compliance with high standards of quality of life, maintaining partnerships and public trust in various institutions, taking into account various aspects of security (individual to collective), assessment of the present and forecasting the future.
Bayesian networks application to forecast the national economies development taking into account the water factor
Authors: Savina N , Kovshun N , Kostrychenko V , Voronenko M , Koval V 
Published: November 2021

AbstractThe influence of this factor on the development of national economies is studied. This study uses the Bayesian network, which illustrates the interaction of indicators of water supply and water use and includes nodes that are formally represented as vectors. The most valuable result of the modelling is not the general forecast obtained with the help of the model, but the structure of the network itself, which allows to identify connections within the model and explain the reason for the emerging interdependencies. modelling using Bayesian networks confirmed the fact that there is a direct relationship between GDP and water consumption and drainage. The obtained results confirm the possibility of achieving an increase in the overall GDP of the country with an increase in the amount of water resources used for production needs. However, this should be implemented in combination with a simultaneous reduction in the volume of return (wastewater) discharged into surface water bodies.
Determinants of regions smart specialization in eco-clustering
Authors: Mazaraki A , Prisyaznyuk A , Bai S , Drozdova Yu 
Published: November 2021

Abstract
The article identifies and substantiates the determinants of regions smart specialization, highlights the connection with the processes of environmental clusters formation to more effectively overcome the passivity of innovation and industrial policies in combination with the model of structural and organizational reconfiguration. The authors thoroughly studied the experience of EU countries in creating ecological clusters and producing eco-innovations. The main barriers of smart regions specialization in Ukraine and its problematic aspects in ensuring the development of ecological clusters are identified. The authors systematized the main ecological innovations in clusters. The article gives recommendations for the development of environmental clusters in Ukraine under the context of smart specialization.
Project management as a development tool for greening of enterprises of the national economy
Authors: Shmatko N , Bondar Iu , Tokareva V , Kovalenko N , Klenin O , Kotlubai V 
Published: November 2021

Abstract
The article reveals the essence of project management, the feature of which is the implementation of multifaceted technological characteristics and subject area of design solutions. It is proved that the methods of project management allow to analyze the issues and determine the objectives of the project, justify the project and develop an appropriate set of documents; determine the necessary amounts and sources of funding; identify the structure of the project and schedule its implementation; calculate the necessary resources, estimates and project budget. The peculiarities of project management as a tool for greening the development of enterprises of the national economy in the conditions of constant complication of doing business and finding ways to improve it in the context of improving the efficiency of economic activity are studied. The project activity is covered, covering all spheres of enterprise functioning, such as production, marketing and innovation activity, social sphere. It is substantiated that the wide application of the project approach to economic development has led to the efficiency and versatility of project tools that allow the company to adapt to the business environment, reduce uncertainty and ensure sustainable development in modern business conditions.
Extraction of Phenolic Compound using Natural Deep Eutectic Solvent from Biomass Waste
Authors: Aziz A H Abdul , Engliman N S , Mansor M F , Nasaruddin R R 
Published: November 2021

Abstract
Phenolic compounds are aromatic compounds known for their bioactive substances which can be found in plants. It has been widely used in various applications due to its antibiotics, anti-inflammatory, anti-allergic, and other benefits. There are various methods to extract the phenolic compounds from plants including ionic liquid, liquid-liquid extraction as well as supercritical extraction. However, all of these methods requires energy extensive, laborious processes, advanced technology, and generate toxic waste. Therefore, there is a growing need to find an alternative green extraction method to reduce the environmental impact while improving the efficiency of the extraction process. Thus, natural deep eutectic solvents (NADES), a combination of two or more components that comes from primary metabolites like organic acids, choline chloride, or sugar, are able to form liquids upon mixing with lower melting point of individual constituents due to hydrogen bond interactions were proposed as alternatives to conventional extraction methods. Therefore, this research determined the suitable combination of NADES solvents (hydrogen bond acceptor/donor ratio) for extraction of phenolic compounds from biomass waste which included young and mature coconut shells and coconut husk, banana peel, empty fruit bunch, and palm oil fruit husk. The extracted compound was analysed using fourier-transform infrared spectroscopy (FTIR) and gas chromatography-mass spectrometry (GC-MS) to identify the functional groups and type of phenolic compounds present. The best biomass waste was coconut shell and the best NADES combination was choline chloride and ascorbic acid at 1:2 molar ratio. The FTIR analysis of coconut shell extracted by NADES showed peaks at 3404 cm−1 and 3523 cm−1 indicating OH stretching followed by 2915 cm−1, 1388 cm−1 to 1473 cm−1, and 1674 cm−1 showing C-H stretching, sp3 C-H band and C=C stretch respectively. As for GC-MS analysis, 26 compounds were detected and four phenolic compounds were identified at peaks 2, 13, 22, and 25. The research was successful in determining the best biomass waste and NADES combination for highest total phenol. The use of NADES was able to extract more phenolic compound from coconut shell than water due to the hydrogen bond between the choline chloride and ascorbic acid.
A Review on Diversity of Anticancer Compounds Derived from Indonesian Marine Sponges
Authors: Murniasih Tutik , Putra Masteria Yunovilsa , Bayu Asep , Wibowo Joko Tri 
Published: November 2021

Abstract
As a tropical archipelago country, Indonesia has a mega diversity of marine organisms, such as sponges. About 850 species of sponges were identified from the east part of Indonesia. The uniqueness of Indonesian marine sponges attracted many researchers to explore the sponge’s potential in producing active substances. During 1995-2016, about 40 genera of Indonesian sponges were investigated for their potential in producing pharmacological activity such as antimicrobial, anticancer, antivirus, multidrug-resistant (MDR), etc. The data showed that 56.7% of 430 reported compounds were confirmed as new compounds. The research trend on Indonesian sponges was high during 2004-2013, but decreasing after 2014. However, researches in the term of active substances from marine sponges should find provide the basic skeleton of anti-cancer drug lead compounds. Chemical structure diversity plays an important role in the exploration of anticancer lead compounds. The purpose of this paper is to review the potential of anticancer diversity compounds derived from Indonesian sponges, to get comprehensive data for further investigation. As the conclusion of our review, the most anticancer compounds derived from Indonesian marine invertebrates are alkaloid groups (such as aaptamine, manzamine, and bromopyrrole derivatives), then terpenoid groups (such as diterpene, coelodiol, and coeloic acid, sesquiterpene aminoquinone, and also (+)-curcuphenol and (+)-curcudiol), and also from the other groups such as sterole, peptide, polyketide, amino acid derivatives, natural organic acid, and quinone. The most effective anticancer compounds were 5-benzoyldemethylaaptamine, isoaaptamine, 3-bromofascaplysin, hyrtioreticulins A, stylissamide X, sigmosceptrellin B, and diacarperoxide S.
Microwave-Assisted Synthesis of Polylactic Acid-Diol for Polyurethane as Biodegradable Packaging Material
Authors: Razali N I M , Ali F , Azmi A S , Ismail T N M T , Mirghani M E S , Omar M F 
Published: November 2021

Abstract
Since its discovery, plastic has been a part of human life and is widely employed in our daily lives. Excessive use of plastic has raised pollution rates around the world, with plastic ending up in landfills or the sea, posing a threat to both terrestrial and aquatic life. Considering this problem, the widespread use of polyurethanes (PUs) in many industries has resulted in unavoidable PUs pollution in everyday life. A reaction involving prepolymer, isocyanate, and polyol can be used to make PUs. Petroleum-based polyol and vegetable oil-based polyol are the two types of polyols available. Isocyanate will become the hard domain of the polymer in the PUs polymer chain, while polyol will become the soft domain. Polylactic acid-diol is the prepolymer used to make PU (PLA-diol). PLA-diol was previously made using a traditional heating approach, which takes a long time. To overcome this traditional method, microwave-assisted synthesis is proposed to synthesize the PLA-diol. The synthesis process involved synthesizing PLA-diol at different microwave power (450W – 900W) and at different reaction time (1 hour – 2 hours). The peak of hydroxyl group in synthesized PLA-diol was characterized via the Fourier Transform Infrared Spectroscopy (FTIR) characterization to determine the functional groups of PLA-diol and gel permeation chromatography (GPC) characterization was done to determine the molecular weight of PLA-diol. The resulting PLA-diol will then be used to synthesis biodegradable PUs in the subsequence study.