bluuebunny/crossref_metadata_2025_split huggingface dataset:
Thermal Degradation and Kinetic Study of Cassava Rhizome for Torrefaction Application
Authors: Sirinwaranon P , Atong D , Sricharoenchaikul V 
Published: November 2019

Abstract
Thermal decomposition kinetics of cassava rhizome (CR) is an important key in the torrefaction process. Kinetic analysis of the cassava rhizome torrefaction was investigated using a thermogravimetric analyser in which CR weight loss is measured under nitrogen atmosphere from ambient temperature to 973K at 5, 10, 20, and 30 K·min−1. Two model-free iso-conversional methods, Flynn-Wall-Ozawa (FWO) and Kissinger-Akahira-Sunose (KAS) have been used to determine activation energies as a function of the extent of degradation. In this work, the CR particles were separated into 3 study groups, 0.125-0.425 mm, 0.425-0.850, and 0.850-2 mm. The average activation energies calculated by using the methods are relatively similar for all three-particle size samples. The average activation energy values calculated by FWO method were 170.509, 172.593, and 130.149 kJ·mol−1, respectively. These data were comparable to KAS method in which the average activation energy numbers were 170.647, 177.276, and 128.620 kJ·mol−1. Both methods indicated that the activation energy was relatively constant until the conversion of 0.5. The pre-exponential factor values from FWO and KAS ranged 4.87E+17 s−1 and 7.28E+14 s−1, respectively. The experimental results show that kinetic parameters from both methods are suitable and effective to help describe the thermal degradation of the cassava rhizome.
A Review of Mineral Carbonation from Industrial Waste
Authors: Song Xiao , Xiaoyu Chen , Lin Qi , Yanna Liu 
Published: November 2019

AbstractFor relieving CO2emissions and climate change, carbon sequestration and storage has been paid more attention. Mineral carbonation technology is a process that the calcium and/or magnesium-containing minerals react with CO2to form stable carbonate precipitation, which in turn fixes CO2. It originates from natural rock weathering process that calcium and magnesium-containing rocks react with CO2dissolved in rain water to form carbonate minerals. The source of mineral carbonation is the solid containing calcium and magnesium compound. The classification of mineral carbonation including direct and indirect mineral carbonation is indicated, and the descriptions of extraction by different extract agent have been given. The pretreatments, operation conditions and reaction kinetics are also discussed. Furthermore, the different processes by carbonizing from industrial waste are reviewed and the energy loss and cost are also described.
Bioremediation of Chromium Smelting Slag by Sulfate-Reducing Bacteria (SRB)
Authors: Yan X , Liu X Y , Zhang M J , Cui X L , Zhong J , Hu X W 
Published: November 2019

Abstract
The remediation of chromium smelting slag was investigated by sulfate-reducing bacteria (SRB). This research showed that removal rate of Cr(VI) was 49.78% and 4.21% in remediation group and control group for 60 days, respectively. Analysis of the physiochemical index, chemical speciation and microbial community, the result indicated that redox potential decreased to -246mV and pH value changed to neutral in remediation process. After the remediation of 60 days, chemical fractions of chromium had a noticeable change from dissolved state (water-soluble, exchangeable fraction and carbonate fractions) to stable state, chromium was most in the fraction of organics and residuals, which meant chromium was stable and would not be released into environment; simultaneously, microbial community structure had also significant different between remediation group and control group, sulfate-reducing bacteria (SRB) increased and became dominant microbial on the ratio of remediation group, therefore, the treatment of chromium contaminated soil by microbial remediation both removed Cr(VI) and decreased its environmental risks.
Creepers Vertical Greening Strategies on High-rise Building
Authors: Haiying Li 
Published: November 2019

Abstract
Vertical greening has many advantages, such as saving energy, relieving heat island effect, increasing green vision rate and beautifying the environment. Vertical greening of high-rise buildings requires more consideration in plant selection, irrigation, storage and drainage and safety. This paper introduces the classification and method of vertical greening of high-rise buildings with climbing plants, emphatically introduces the support system of vertical greening, selection principle and greening effect, and makes a comparison. It is pointed out that vertical greening with climbing plants is economical, simple and feasible.
Study on the Construction Value and Development Strategy of Ecological Sports Park under the Background of Sponge City
Authors: Xing Qunli 
Published: November 2019

Abstract
In recent years, with the acceleration of urbanization construction, the “seeing the sea” of the city that is raining and flooding has been solved in the “sponge city” strategy of “breathing”. Guizhou Province actively develops the strategic arrangement of sponge city, Put forward taking the harmonious symbiosis of the public fitness and ecological environment as the carrier. Integrating sports competition and tourism, the “sponge type” ecological sports park is planned and built with “sports” to promote “tourism”. This paper uses literature, field research and other research methods, combined with the topographical characteristics of “mountain, water, forest” in Guizhou Province, taking ecological sports park as the research object, in order to provide advice and suggestions for the scientific and rational construction of green ecological sports park.
Research on Ecological Compensation Standard and Spatial Optimization of the Five Major River Basins in Jiangxi Province
Authors: Xiong Kai , Kong Fanbin , Wang Ben , Dai Yanzhi 
Published: November 2019

Abstract
Based on the actual situation of the river basin in Jiangxi Province and the related literature, we construct an estimation model for the ecological compensation standards of the Fiver Major River Basins in Jiangxi Province, and have measured the ecological compensation standard of each research area. We use ArcGis and Geoda software to analyze spatial autocorrelation and hotspots of ecological compensation standards. The above research results are used as the basis for spatial optimization of watershed ecological compensation standards, contributing to the further improvement of ecological compensation ofthe Five Major River Basins in Jiangxi Province.
I-res intelligent system for multi-factor risk control of accidents and the technical condition of the main gas pipeline
Authors: Zemenkova M Yu , Dubrovin D D , Shagbanov I F , Zemenkov Yu D 
Published: November 2019

Abstract
The paper deals with improving the reliability and safety management system of the linear part of the main gas pipeline. At the Department of Transport of Hydrocarbon Resources, Industrial University of Tyumen, research is being carried out to develop a system for multi-factor risk control of accidents and the technical condition of hydrocarbon transport systems. As an example, an algorithm for monitoring the technical condition and safety of local sections of the pipeline was developed, a software product “I-ReS” (intelligent, reliability, safety) was developed as part of the CI-TREMS system, which allows real-time monitoring of the technical condition and safety of the main gas pipeline.
Modelling the stress-strain state of tubular springs in the ANSYS software package
Authors: Pirogov S P , Cherentsov D A 
Published: November 2019

Abstract
The paper presents the results of calculating the stresses and strains of manometric tubular springs under loading by internal pressure and external force. For research, the finite element method implemented in the ANSYS program was used. The problems of constructing a grid model of the tubular element were solved, the displacements of the free end and stresses from internal pressure were determined, and the maximum permissible pressure value was found.
Environmental safety estimation of drill cuttings using a composition mixture based on zeolite
Authors: Agoshkov A I , Tretyakova M O , Moskovaia I V , Brusentsova T A 
Published: November 2019

Abstract
Drill cuttings is a complex mixture of spent drilling mud with various additives having different chemical properties and drilled solids, and which significantly pollutes the environment when it is buried. This article proposes and studies a zeolite-based composite mixture that converts drill cuttings into environmentally friendly soil. As a result of the experiment, samples of model drill cuttings and soil with different holding times are obtained. A sequential extraction method is used to determine the degree of metal desorption in a laboratory study of samples. The analysis consists of an estimation of metals content (gross form and extracts in 3 extractants), the content of petroleum products and pH value. Concentrations of metals in both gross and mobile form in the processed drill cuttings have significantly decreased in comparison with the original drill cuttings, and do not exceed standard values. Also, oil concentration in the soil is lower than in the drill cuttings. pH reaction has decreased from alkaline to neutral. The proposed zeolite-containing composite mixture allows implementing drill cuttings as a new, sustainable in the environment, useful product.
Directed protection of the generator
Authors: Buryanina N S , Korolyuk Y F , Koryakina M L , Lesnykh E V , Suslov K V 
Published: November 2019

Abstract
In addition to periodic components of industrial frequency, the aperiodic ones arise in windings and on the generator output leads under the conditions of shortcuts. These aperiodic components slow down the operation of the main differential protection of a generator up to ten periods of a network frequency with the application of saturated magnetic cores of current transformers as well as zero current relays and transformer differential protection [1]. This slowing down promotes accidents and can even lead to generator’s winding and steel burn-out at high-ampere currents. The present paper considers the ways to reduce the impact of aperiodic components on the operation of digital relay protection of generators and generator-transformer blocks and proposes generator’s directional digital protection.
Assessment of snow cover pollution of the mining area
Authors: Suyundukov Ya T , Semenova I N , Khasanova R F , Rafikova Yu S , Suyundukova M B , Ilbulova G R , Papyan E E 
Published: November 2019

Abstract
The purpose of the work is to assess snow cover pollution of Sibay city with sulfates and heavy metals. The paper presents snow cover study conducted in January-February 2019 in accordance with the requirements of generally accepted regulatory and procedural documents [11–12]. The site near the pond in the northern part of the city was as a conditional background. The paper describes the analysis of samples for the content of heavy metals carried out by atomic absorption spectrophotometry, the sulfate concentration measured by the photometric method. The study used pH-meter to determine the pH. To calculate the total pollution indicator the study used obtained results. Snow sulfate pollution was at the admissible level. The highest content of sulfates was in the area of industrial enterprises (the excess of background indicators was in the range of 5.1–11.1 times). The study revealed polyelement pollution of snow with such metals as (Fe, Mn, Cu, Zn) in the zone of quarry emissions. Snow cover next to the pit dumps has a moderately dangerous pollution category. Copper and zinc make the main contribution to pollution. Thus, the activity of mining enterprises contributes to the accumulation of elevated concentrations of metals in the atmospheric surface layers, which negatively affects the ecological and hygienic situation in the region.
Adapted methodology for comprehensive contamination assessment of bottom sediments on the content of various forms of heavy metals
Authors: Valiev V S , Ivanov D V , Ziganshin I I , Aleksandrova A B , Khasanov R R , Shamaev D E , Malanin V V 
Published: November 2019

Abstract
As a result of long-term studies of bottom sediments of lakes, rivers, ponds and reservoirs of the Republic of Tatarstan, considerable factual material has been accumulated, which enabled the translation of quantitative estimates into qualitative characteristics. This necessitated a comprehensive assessment and generalization of the exceedance of the thresholds set for all metals, similarly to the specific combinatorial water pollution index (SCWPI). At the same time, the authors emphasize the features of such a comprehensive assessment of bottom sediments, and also suggest methods and algorithms for solving emerging problems. We use the method of frequency characteristics of data series of metal content (Cd, Pb, Co, Cu, Ni, Zn, Cr, Mn, Fe) in bottom sediments, score the relevant characteristics, generalize the point estimates and bring them to the appropriate classes of purity. As a result, a method for the integrated assessment of contamination of bottom sediments was developed and tested, which solves the problem of the integral assessment of the quality of bottom sediments in terms of a complex of pollutants using the example of heavy metals. The method is based on the approach of the SCWPI. Therefore, its results are comparable to combinatorial assessments of water quality, which will allow deriving a uniform assessment of the water body as a whole.
A new efficient method of adaptive filter using the Galois field arithmetic
Authors: Alaeddine H H , Charafeddine K , Vikhrov M E 
Published: November 2019

Abstract
This paper proposes an efficiently implementation of Multi-Delay Filter Block Recursive Least Squares (MDF-BRLS) algorithm. This implementation uses a particular transform that is defined on a finite ring of integers with arithmetic carried out modulo Fermat numbers. In term of performances, this Fermat Number Transforms (FNT) is ideally suited to digital computation, requiring approximately Nlog2
N additions, subtractions and bit shifts, but no multiplications unlike the Fourier transform (FFT). FNT implementation results confirm that the MDF-BRLS adaptive filter can implement with smallest computational complexity compared with an implementation using the Fourier transform.
Legal aspects of regulation of real estate services in the real estate market
Authors: Andreeva Tatiana 
Published: November 2019

Abstract
Legal regulation of realtors activities in the provision of services in the realestate market is an urgent need, a problem facing the Russian legislator.the current system of voluntary certification of real estate services, unfortunately, is not enough for effective regulationof real estate activities, protection of the rights and legitimate interests of consumers real estate services.
The development from special economic zone (SEZ) to free trade zone (FTZ) of China
Authors: Na Bao 
Published: November 2019

Abstract
The experience of many countries shows that the presence of high innovative potential is a necessary factor of economic growth in the modern world. The establishment of special economic zones at the early stage of the policy of reform and opening up helped to reduce its cost. If the establishment of special economic zones reflects the Chinese characteristics (road of socialism with Chinese characteristics), the establishment of free trade zones reflects its universality.
Investigation of thermal conductivity of non-autoclaved foam concrete based on microsilica
Authors: Baranova Albina , Ryabkov Igor 
Published: November 2019

Abstract
The article presents the results of a study of the thermal conductivity of non-autoclaved foam concrete based on microsilica, depending on its average density and humidity. It is established that the decrease of the average density of foam concrete from 800 to 400 kg/m3 leads to a decrease the thermal conductivity coefficient by 44,9 %. The coefficients of thermal conductivity of the dry samples are about two times lower than the same samples at their natural humidity.
Urban topology of university campus
Authors: Bolshakov Andrey 
Published: November 2019

Abstract
The subject of research is university spatial development. Universities have either a dispersed model of placement of academic buildings, student accommodations and additional facilities, or develop in the form of a campus. A developed campus is characterized by completeness of functions, organized arrangement of places, and effective coherence of parts. The campus has external and internal connections. External connections integrate the campus with urban transport. Internal connections unite parts of the campus into a single whole and provide it with relative autonomy. The useful mobility coefficient in the spatial structure of the university is proposed. Spatial coherence and organization of campus elements is a factor in the university success, at least among other factors that have different origin.
Optimization of the sewerage systems scheme of cities and populated areas
Authors: Chupin Roman , Pham Ngoc Minh , Chupin Victor 
Published: November 2019

Abstract
Lake Baikal is a UNESCO World Heritage Site. This unique lake is by nature, by the purity and depth of the waters, by the diversity of the lake fauna and flora. The rules for the use of the Baikal waters, its territory, and the forest fund are strictly regulated by the Federal Law “On the Protection of Lake Baikal”. This law restricts economic activity within 200 km of the guard zone. In a difficult situation there are settlements located on the shore of the lake, especially those found in the territory of national parks and reserves. However, the prohibitive measures are not able to stop the development of tourism, which is increasing every year. Only “Small” Sea and Olkhon Island are visited annually by over half a million visitors from different countries. The most attractive zone for the development of tourism and recreation is the middle zone of Baikal, the territory of which falls within the boundaries of the National Park. Many tourist centers arise spontaneously and do not correspond to modern technologies of their organization and the requirements of the protection of Baikal. Practically, nowhere there are no treatment facilities. Only cesspools are used, from which drains drain into the ground and enter Baikal. Therefore, the issues of water disposal for this area are relevant. The paper proposes a new method for substantiating options for centralization of wastewater treatment, including optimization of the technology for transporting effluents to sewage treatment plants. With the help of this technique, the system of wastewater disposal from the territory of Olkhon Island and the coast of the “Small Sea” has been justified.
Modern trends of development of transport infrastructure
Authors: Golskay Y N 
Published: November 2019

Abstract
Transport infrastructure is a system-forming element of the infrastructure complex of the Russian economy, which operates on a national scale as a single system. The results of the functioning of the transport infrastructure have an impact on the overall parameters of the country’s life. The features of infrastructure benefits are identified and the trends affecting the development of transport infrastructure are determined. Directions and problems of digitalization of transport infrastructure in Russia are dentified, among them – the use of blockchain technologies. These trends indicate revolutionary changes in the way of life and the needs of society, which will affect the development of transport infrastructure. In turn, transport infrastructure is becoming not just an important factor, but to some extent the basis of a new way of active life, which determines its importance for economic development. The application of blockchain technologies in transport infrastructure is analyzed. The problems of blockchain technologies application in the development of transport infrastructure are revealed.
Preparation and holding of business games implementation of e-learning students of the construction areas
Authors: Ivanova Margarita , Ivanov Andrey 
Published: November 2019

Abstract
The students of the specialty “Energoeffektivnosti and ecology sustainability of buildings” shall in addition to the standards ESKD and SPDS to study the environmental safety standards products, ISO 14000, along with the use of electronic templates to be able to independently carry out the design documents of related industries, including engineering drawings. To increase interest in the topic “Engineering drawings”, motivation to acquire knowledge necessary to use adaptive instructional techniques.
Institutional environment for the development of digital economy and blockchain technologies in the Russian Federation
Authors: Kaluzhnova Nadezhda , Kosykh Egor , Frolov Ilya 
Published: November 2019

Abstract
The digital economy, along with new opportunities, presents new challenges. Along with distributed registry technology called blockchain, the economy includes cryptocurrencies. A whole area of cryptoeconomics is emerging, and its development brings new opportunities to reduce the cost of market transactions. At the same time, the spontaneous development of cryptoeconomics has negative effects. Regulation of cryptoeconomics meets the problems of understanding the essence and role of cryptocurrency in the economy. The article deals with the directions of regulation and contradictions arising in the regulation of cryptoeconomics. The interrelation of blockchain and cryptocurrencies is considered. The ways of regulating cryptoeconomics in different countries are shown. Unresolved issues and challenges in the development of blockchain technologies and cryptoeconomics are outlined.
Administrative control of prices in the automotive fuel market
Authors: Kolmakov Alexander , Lokhtina Tatyana 
Published: November 2019

Abstract
The modern Russian economy is a market economy. Of course, it is arguable what kind of capitalism has been formed in Russia. But there is no doubt that most industries are determined by factors comming from a competitive market mechanism. Having replaced directive pricing by market price formation, the reform of 1992 made it possible to balance the consumer goods market and eliminate the total deficit. The disappearance of the deficit was an excellent compensation for the decline in the standard of living of the population; thus, it helped to avoid the most radical forms of social protest. Since then, Russia has gone through hard times causing various deviations from the classical model of the capitalist economy. Until recently, the country’s authorities, who were in charge of the national economic policy, adamantly refused to return to directive pricing model, believing that this step would lead to a significant reduction in economic efficiency. However, in autumn of 2018, the government agreed to the introduction of maximum prices. An extensive industry, commonly referred to as “socially significant”, has seen those regulations. It is the market of automotive fuel. This decision means that in the near future we will witness quite a rare economic experiment of the present time. It will allow researchers to test the universality of economic laws, as well as to examine the specific modes and mechanisms by means of which these laws influences our life.