bluuebunny/crossref_metadata_2025_split huggingface dataset:
Assessment of Regenerative Architecture Principles in Nigeria; A Case Study of Selected Research Institutes in Nigeria
Authors: Chidinma Ukaegbu , Omoyeni Fulani 
Published: December 2019

Abstract
Buildings are an integral part of human existence, as shelter is one of the three basic needs of man. However, the design and construction of buildings, so far, has affected the natural environment negatively. The focus of research is, therefore, shifting towards buildings whose existence have minimum negative effects on the natural environment and even goes a step further to study buildings that positively influence the environment in which they are built. Nigeria, as a developing country, is also shifting towards these trends in building design and construction, however, more studies have to be carried out in order to fit these trends into our local context. This study, therefore, aims at identifying and analyzing the regenerative architecture principles adopted in the design of selected research institutes in Nigeria with a view to promote environmentally sustainable designs in Nigeria. Case studies of selected research institutes were assessed to determine the extent to which they comply with the principles and strategies of regenerative architecture, as proposed by Littman in 2009. Data was collected and analyzed using descriptive statistics and content analyses. The findings of this study suggest that the predominant strategies of regenerative architecture employed in Nigeria are those that promote and cater to energy efficiency, whilst other strategies of regenerative architecture were barely acknowledged. This paper concludes that as much as energy supply is a major issue in Nigeria, other strategies of regenerative architecture can also be employed in the design and construction of buildings to ensure a holistic net positive impact of the buildings on the environment.
Comparative analysis of milling time on the particle sizes of coal fly ash and wood fly ash using Otsu Method for thresholding
Authors: Ikumapayi O. M. , Akinlabi E. T. , Adedeji P. A. , Akinlabi S. A. 
Published: December 2019

Abstract
South Africa remains one of the countries with an abundance of coal fly ash (CFA) emerging from her abundant coal deposit. Despite the hazardous and environmental unfriendliness of fly ash, so many benefits can be derived therein. With new policies of waste-to-wealth, the country seeks ways by which this resource could be of value addition. However, CFA in its raw form often requires further milling operation to enhance suitability for the intended use. This study investigated the effect of milling time on the particle size of CFA and wood fly ash (WFA) using image segmentation. Both CFA and WFA received at micro-sized particles were washed with distilled water to remove impurities and dried in the oven at 80°C for 48 hours then sieved using 75µm size. Microstructural images of both CFA and WFA milled at varying times (t = 0, 20, 40, 60 minutes) were morphologically and physiochemically analysed using scanning electron microscope (SEM), X-ray diffraction (XRD), Energy Dispersive X-ray (EDX), and X-Ray Fluorescence (XRF). SEM images of CFA and WFA were segmented using Otsu thresholding technique and average particle sizes were estimated. CFA contains a higher composition of Al2O3 (30.93%) and SiO2 (51.43%) compared to WFA, which has 10.70% and 46.31% respectively. However, WFA contains more of Fe2O3 (17.28%) than CFA (2.29%). The number of particle size increased with increases in milling time while the particle area decreased with an increase in milling time. At a 95% confidence interval, there exists a significant difference between results obtained at different milling time. Also, a significant difference exists between the mean particle diameters of the two ash sources.
Subscribers’ Traffic Internet Bandwidth Usage Capture and Classification Using Android Platform
Authors: Adewale A A , Ben-Obaje A , Ekong E E , Orimogunje A , Anabi H K , Omoruyi O 
Published: December 2019

Abstract
With the rise in smart devices communicating on internet, there is a huge demand in the delivery of internet bandwidth to fulfil subscribers’ aspirations. It is therefore important for internet network providers to understand the subscribers’ behavioural pattern in terms of internet bandwidth usage so as to meet up with the continuous rise in its demand. This research introduces the schematics of an android application effectively communicating with a remote database; Firebase cloud service. The classification of the subscribers’ internet traffic bandwidth consumption enables the android application to generate dataset of bandwidth utilization patterns of volunteered subscribers’ device which are grouped into 4 classes; A, B, C and D representing very high, high, medium and low data usage respectively. The collection of internet bandwidth usage of subscribers was recorded at intervals of every hour into the remote database in Firebase cloud.
Alcohol dehydration of palm sugar (Arrenga pinnata) from Lalolae Village, East Kolaka, Southeast Sulawesi
Authors: Permana D , Ilimu E , Kadir L A 
Published: December 2019

Abstract
This research aimed to obtain ethanol from fermented palm sugar with high purity. There are two main techniques used in this study to increase the purity of alcohol, namely modified multilevel distillation and the use of molecular sieve as the principal dehydrator agent. The process carried out to produce ethanol uses a distillation and dehydration process, with raw materials fermented using Saccharomyces cerevisiae and traditional technology. At first, prepare two column reflux distillation apparatus had been designed and constructed successfully to prepare bio ethanol. The sugar content of palm sugar used was 12.4%. Bioethanol is produced from 10% inoculum concentration and variations in fermentation time of 12 hours, 24 hours 36 hours, and 48 hours at pH 5. The results of measurement using alcoholmeter, the highest alcohol concentration was obtained at the condition of 36 hours fermentation time by 9%. The distillation and dehydration process is carried out continuously at a distillation temperature of 79 °C with a mass of 20 gram molecular sieves. The results of measurement of alcoholmeter obtained bioethanol levels of 54%.
Inheritance study for fruit characters of tomato IPBT78 x IPBT73 using joint scaling test
Authors: Mustafa M , Syukur M , Sutjahjo S H , Sobir  
Published: December 2019

Abstract
The Increase of tomato production can be done through the improvement of superior genotypes that have high production components even though they are planted in the lowlands. Information on components inheritance of tomato production in the lowlands is very important to determine the effective selection method for the development of lowland tomatoes. This study aimed to study the pattern of components inheritance of tomato products in the lowlands. This study used an analysis of six generations, namely P1, P2, F1/F1R, BCP1, BCP2, and F2 through a joint scaling test. The results showed that the characters of fruit length, fruit diameter, fruit size, weight per fruit, fruits number per plant were controlled by many genes, and there were no maternal effects. Gene action for fruit length character was duplicate epistasis and additive dominance, for fruit diameter characters were additive dominance and complementary epistasis, duplicate epistasis and additive dominance for fruit size characters, duplicate epistasis for per fruit weight, several fruits per plant and fruit weight per plant.
Analysis of mercury and nickel content in fish and shrimp a result aquaculture of ponds in Pomalaa, Kolaka Regency
Authors: Syahrir  , Yaqin K , Landu A , Tambaru R 
Published: December 2019

Abstract
The Nickel Mining Industry in Pomalaa, Kolaka Regency, Southeast Sulawesi has been operated since 1909. In its development, mining activities have begun to cause problems, namely pollution and environmental damage. Research on metals around the nickel mining waters has been done by taking samples of milkfish and shrimp which are cultivated by the community in ponds. The metal analysis was carried out using AAS (Atomic Absorption Spectrophotometer) variance AA50. The presence of mercury metal in fish samples (B6) and shrimp (U40 and U50) was not detected, but was found in fish samples (B2 and B4), and shrimp (U30) with the contents of B2 each at 7.0510+0.77 mg/kg, B4 of 2.0700+0.12 mg/kg, and U30 of 4.6560+1.04 mg/kg. Based on SNI7387:2009 (The maximum limit of mercury contamination in food) is known to fish and shrimp as a result of the cultivation of these ponds has undergone mercury metal pollution. Nickel is found in all types of samples, both in fish and shrimp. The value of nickel metal content in fish (B2 is 0.5000+0.11 mg/kg; B4 is 0.5000+0.11 mg/kg; and B6 is 0.5000+0.17 mg/kg). While the nickel content in shrimp (U30 is 1.1550+0.51 mg/kg; U40 is 0.7650+0.17 mg/kg; and U50 is 0.6650+0.17 mg/kg). For nickel content, the values referred to as standards are WHO Regional Office for Europe, Copenhagen, Denmark, 2000 Air Quality Guidelines, Chapter 6.10 Nickel - Second Edition. Concerning these standards, it was found that fish and shrimp from aquaculture ponds in these locations had suffered nickel metal pollution.
Engineering method for calculating the slab foundation of a high-rise building in difficult geological conditions
Authors: Degtyarev V G , Safronova T I , Kozhenko N V , Molotkov G S 
Published: December 2019

Abstract
When designing objects in complex engineering and geological conditions, it is necessary to use a specialized geotechnical software package allowing to take into account the foundation soils nonlinear properties, as well as the specific occurrence of geological elements, since the current RF standards only take into account the nonlinear properties of the foundation in a simplified form.
Taking into account the influence of the centrally symmetric thermal field on the stress state of a inhomogeneous rock mass with a spherical cavity
Authors: Frolova I I 
Published: December 2019

Abstract
The problem of calculating the stress-strain behavior of a rock mass in the vicinity of a spherical cavity, taking into account the radial inhomogeneity of the rock material mass is considered. The solution takes into account the technological inhomogeneity of the soil and the inhomogeneity caused by the influence of the thermal field. The axially symmetric problem of determining the stresses and displacements was solved with a joint action of an asymmetric load (ground reaction) and hyper-thermal fields on the rock mass. Similar problems tend to arise during the creation of underground cavities and their exploitation for storing various self-heating products. To solve the initial simultaneous equations in displacements, the Fourier series of Legendre polynomials were used. Then by the separation of variables, the problem was reduced to 2 ordinary differential simultaneous equations with variable coefficients, which can be solved numerically.
Promising technologies of dry low-rise housing
Authors: Verzhbovskiy G B 
Published: December 2019

Abstract
The technologies of low-rise housing construction with the use of small blocks of a special type, which make it possible to build the above-ground part of a building without using “wet” processes are described. It is shown that the presence of labyrinth grooves in the walls provides protection against blowing and makes it possible to ventilate the internal cavities.
Stabilization and stiffening of unique longspan bridge transport constructions
Authors: Shumeyko V I , Karamysheva A A 
Published: December 2019

Abstract
The article deals with the unique systems of longspans, gives examples of such constructions in Russia and abroad, as well as the main periods of their development history. Particular attention is paid to accidents and disasters that took place at various times. Based on the analysis of suspended and cable-stayed systems’ destruction, the main causes of damage are investigated and systematized, which is a very important element in ensuring the security of unique longspan systems. Recommendations are made on improving the stabilization and stiffness of bridge constructions.
Investigation of fine dust pollution during hard and soft works in warehouse complexes
Authors: Strelyaeva A B , Kalyuzhina E K , Lupinogin V V , Alkneume M Kh A 
Published: December 2019

Abstract
The dust dispersed composition in various types of hard and soft works is under study. The dust emissions indoors concentration data is obtained. The dust concentration on distance dependence is constructed. The impact assessment of hard and soft works in warehouses and residential premises on environmental pollution by dust emissions is given. The concentration and ratio of PM2.5 to PM10 particles were calculated in order to determine the dustiness and the negative impact on the environment.
The conditions of bulk clay soil compaction
Authors: Lyashenko P A , Denisenko V V , Kovalenko V S , Kolomiets N S 
Published: December 2019

Abstract
Testing of bulk clay soil with static cyclic loading was carried out in order to determine the required number of loading-unloading cycles to achieve a standard soil compaction at a given humidity, as well as to assess the content of bound water. Several samples of different moisture content of the dust loam in the compression device were tested by applying pressure in one stage and unloading with the measurement of deformation of the compaction and expansion of the soil sample. The number of cycles of the test soil samples was limited to the stabilization of the values of the coefficient of the elastic deformation work, the same for all samples of different moisture. Here proposed method of selection of the elastically deformable water and water involved in the inelastic deformation as a phase state of aggregation of the soil. Calculations of the volume content of mineral particles in the soil, elastically deformed water and water involved in inelastic deformation of the sample are made through the coefficient of elastic deformation. It is found that with increasing the density of the soil volume content of mineral particles and the elastically deformable water increases and correlates with the dry density of the soil and the volumetric water content involved in the inelastic deformation of the sample virtually unchanged.
The incompressible pile draft and bearing capacity when interacting with surrounding and underlying soils, taking into account their linear and elastic-plastic properties
Authors: Ter-Martirosyan Z G , Angelo G O , Ter-Martirosyan A Z 
Published: December 2019

Abstract
The article presents the formulation and solution of the interaction problem of a long incompressible pile with a two-layer base, taking into account the linear and elastic-plastic properties of the surrounding and underlying soils and when interacting with the pile cap by an analytical method. The studies show that the interaction with the surrounding soil involves a limited amount of soil mass in the form of a thick-walled soil cylinder containing a pile.
The bearing capacity of the explosive piles’ bases: geotechnical design of rational structures
Authors: Borozenets L M 
Published: December 2019

Abstract
The material of the scientific work is presented in two articles: “The bearing capacity of the explosive piles’ bases: the bases granular media geomechanics theory” and “The bearing capacity of the explosive piles’ bases: geotechnical design of rational structures”. The results of the latest innovative achievements in the field of pile foundation engineering are summarized. The explosive single piles-foundations rational designs development of geo-engineering design scientific and technical problem integrated solution relevance is grounded. The goal and objectives of the scientific research are set. The main content of theoretical and practical research is represented by a full demonstration of the scientific results obtained. Geotechnics is based on methodologies that include the computational-theoretical research knowledge geomechanics and methods theory provisions. The proposed geotechnical design of rational designs of explosive single piles-foundations makes it possible to determine their design dimensions from the bases’ bearing capacity values equal to the critical load on the pile.
Evaluation criteria of loess soils subsidence
Authors: Chernysh A S , Kalachuk T G , Shirina N V 
Published: December 2019

Abstract
Construction on subsidence soils has some features that are taken into account when developing projects. Design and construction works are regulated by a number of regulations. However, subsidence soils have not only common properties and similar characteristics, but also have noticeable differences due to the territory of formation, genesis, climatic conditions and other factors. The article presents the experimental data analysis on the land subsidence soils evaluation criteria choice. When wetting loess subsided soils, the cohesive force is subjected to a significant change, which determines the soils strength, and the angle of internal friction plays a minor role. When humidity increases their values decreases slightly. This feature was assumed as the basis for substantiating the new subsidence criterion, as well as for developing a classification of loess soils according to their subsidence.
Economic effectiveness of traditional building materials in modern conditions
Authors: Alpatov V Yu , Atamanchuk A V , Balzannikov M I 
Published: December 2019

Abstract
The article studies the effectiveness of different materials usage in building structures. Specific researches and estimates have been done to complete this study. Economic usage indicators of materials with different properties for creation of identical building structures were compared. Impact of the following material properties such as strength, elastic modulus, weight and cost on the construction cost was estimated. Rafter construction was selected as a study object. Calculations examples of rafter constructions made of wood and steel are described in the paper. Material properties impact on operational characteristics of the building structures was estimated. Variant design and optimal design of constructions made of materials that properties considerably differ were reviewed. Variant design example used in the building practice was described.
Determination of optimal thermal insulation layer thickness of outer structures of buildings according to the load of heating and cooling system
Authors: Petrosyan A L 
Published: December 2019

Abstract
One of the key energy efficiency measures in residential buildings is to reduce the load on heating and cooling when in outer structures such as walls and ceiling a thermal insulation material is included in order to reduce the losses caused by heating and cooling, air and moisture penetration. It depends on the climate zone of the building, structural construction, heat and cold sources, prices for fuel and electricity in that region. It can be different in every specific case, so it is of high necessity to determine the optimal thickness of the used thermal insulation, the location of the installation. Below are the features and the need to introduce thermal insulation in newly constructed and operated buildings. The influence of the presence of thermal insulation in the construction industry on the cold load necessary for cooling and the pattern of changes in the cost with and without the presence of thermal insulation was investigated.
Creep salt array with a cavity
Authors: Andreev V I 
Published: December 2019

Abstract
The problem under consideration is connected with a technological problem creating cavities with camouflage explosions. Often these cavities are created in an array of rock salt [1, 2]. In rock salt even under light loads pronounced rheological properties appear, solution of the problem is of interest about creep of salt massif with cavity under the action of both power loads (soil pressure) and temperatures. As a result of the calculation, stress plots for various points in time are obtained, as well as displacements.
Modeling of internal efforts in the beam with moving load in MathCAD system
Authors: Kudryavtsev Y , Gavrilenko A 
Published: December 2019

Abstract
The article describes the processes of analytical, numerical and computer modeling of the internal forces in any beam section, depending on the location of the moving load. Such calculations are quite laborious and are widely used for the calculation of many structures under the influence of moving loads (beams and trusses of bridge and gantry cranes, road and railway bridges, etc.). As a result of the study, a complex has been developed: analytical models, numerical and computer algorithms and programs that allow to effectively determine the internal forces in any beam section depending on the location of the moving load. The proposed procedures for modeling internal forces in any cross section of a beam under the action of a moving load can reduce the time and cost of performing such studies by several orders of magnitude and effectively conduct the research when the beam parameters change, including the materials from which the beam will be made.
The study of species composition of the mycoflora, selected surface samples poliferation composites in humid maritime climate
Authors: Erofeev V T , Smirnov V F , Myshkin A V 
Published: December 2019

Abstract
Abstact. The results of the study to establish the species composition of microorganisms settled on samples of polyether-acrylate composites after they are kept in sea water and in climatic conditions of the black sea coast are presented. The composition of the curing system in the composite and the conditions of holding the samples have a significant effect on the species composition of microorganisms.
Organizational and technological stages of the forensic construction and technical expert examination when determining the compliance of a building facility with regulatory and technical documentation
Authors: Zilberova I Y , Mailyan V D , Mailyan A L 
Published: December 2019

Abstract
According to the results of studying the modern theory of forensic examination, as well as the practice of appointing and conducting the forensic construction and technical expert examination during the proceedings in the most scaled and significant economic disputes of economic entities, issues related to the absence of development of organizational and technological stages of the forensic construction and technical expert examination in determining the compliance of a construction facility with regulatory and technical documentation were identified.
The paper describes the organizational and technological stages of the forensic construction and technical expert examination, which will provide a rational solution to the most common forensic issues in practice. The description of the stages is brought up to the methodological level of construction and technical research. The generalization of the results of the application of this proposal by the forensic expert-builder forms the basis for the development of methodological recommendations for the forensic construction and technical expert examination on the issues of determining the compliance of a construction facility with the regulatory and technical documentation.