an indoor environment of each building depends on a number of criteria, like temperature, humidity, noise, etc. therefore, multi-attribute decision making (MaDM) methods are used to assess alternatives and to choice the rational one. In this paper we suggest to add a concept of ideal alternative into assessment using MaDM, since it allows both to determine the optimal solution and the deviation of each alternative (an indoor environment of a building) from the optimal values, e.g. ideal alternative. therefore, a method of multi-attribute assessment using ideal alternative (MaaIa) is formulated in this paper. It is applied for the Moora method to assess an indoor environment of apartments in block houses situated in naujoji Vilnia, Vilnius, lithuania. obtained results of the assessment show that the proposed method is useful for decision support and assessment of alternatives.

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Rapidly growing building information modelling (BIM) in construction offers a number of advantages and new opportunities of improving efficiency and effectiveness of the construction process and enhancing the use of emerging technology throughout the project's lifecycle, not only in new buildings, but also in existing ones, including overall infrastructure. Recently, there has been a great number of publications discussing BIM advantages in construction. A number of review papers summarising BIM usage cases have been published. However, as the preliminary research shows, not all organizations use BIM because of its disadvantages. Therefore, the main aim of this research is to study the extent of available literature on BIM, to determine the current situation of BIM usage, and summarise publications related to the application of BIM. The current study is limited solely to papers available in SpringerLink, ScienceDirect and Thomson Reuters Web of Sciences scientific databases. The obtained results make it clear that BIM case studies and research in academic journals show high level of BIM implementation in practice, and advantages of BIM. However, there are some limitations of BIM usage in practice. Moreover, new trends in the evolving BIM are presented and discussed in this paper.

Numerous countries are trying to find the best solution for conservation, restoration or reuse of the heritage buildings, preserving their cultural, historical, ethnic and spiritual values. The scientists, researchers and government are analysing the problems concerning with heritage building's, like seismic issues, energy saving, sustainability, structures, materials and adaptive reuse. Since, heritage buildings' reuse and preservation are characterized by multiple criteria, a multi-criteria decision making (MCDM) methods are useful in finding rational solutions for the previously mentioned problems. The current paper aims to overview papers on the MCDM approaches application in regard to heritage buildings' reuse and preservation area. This study employs a bibliometric data analysis to explore state-of-the-art of the defined topic and an in-deep analysis-to synthesize the knowledge domain and critically evaluate a thorough literature in the analysed topic. As a result, scientific maps were created to reveal the knowledge domain of MCDM approaches in heritage buildings' reuse and preservation. Finally, research gaps and future research directions are identified. Results of the analysis shows that till now MCDM approaches are not widely used in solving heritage buildings reuse and preservation issues. Moreover, there is luck of complex problem solving approach in cultural heritage buildings area.

While designing the volume of a building, architectural solutions can be employed to achieve greater energy efficiency for the entire lifecycle of the building. However, currently this possibility is not sufficiently utilised. The paper provides a comparative analysis of architectural solutions, presenting the ones that not only allow for a reduction in energy losses through the external envelope of a building considering the local climatic conditions; but also make it possible to increase the use of energy from renewable resources.

This paper presents a systematic mapping (SM) study with the aim to determine how Building Information Modeling (BIM) methodologies and technologies contribute to energy-related analyses over the course of the entire building life cycle. The method adopted in the study is based on a set of seven research questions. We used a mixed technique combining co-citation analysis and bibliographic coupling in order to analyze the publications’ datasets for the period 2010–2020. The main advantage and novelty of this study are that the joint dataset from the Scopus and Web of Science databases was used to develop the keyword map. The main findings of this study indicate that many BIM-based applications can be used to analyze the building energy performance at all stages of the building life cycle. However, the applications of BIM in conjunction with other information technologies are limited and are still in the initial stage. In the future, the main improvements should be focused on process,...

Organization's business processes are changing constantly due to a dynamic environment. Accordingly, all these changes need to be implemented into dynamic business processes, which at the runtime will ensure the required dynamicity of business. However these processes are not sufficient investigate what prevents their effective use. Thus far, there does not exist the generally accepted understanding of the dynamic business process (DBP), including its requirements, and measures of dynamicity. Therefore, this paper presents a systematic literature review of conference and journal articles on the topic of DBP. The review has been undertaken to define DBP, identify the DBP requirements and analyse proposed solutions for their implementation. In addition, this paper identifies gaps in current research in order to appropriately identify topical research activities in the field of DBP.

Fed-batch cultivation of Azotobacter vinelandii 21 was optimized for biosurfactant production. Optimization of feed-rate time profile and concentrations of nutrient medium components in feeding solution is based on a hybrid mathematical model consisting of mass-balance equations for biomass, biosurfactant, volume of cultural liquid and substrate components: glucose, ammonia nitrogen and phosphate phosphorus. The rate of cultural liquid emulsification activity growth as well as the rates of ammonia nitrogen and phosphate phosphorus consumption is modelled by means of artificial neural network, while the rates of the other biochemical transformations are modelled by adequate kinetic relationships. Y xs g biomass g −1 glucose biomass/glucose yield µ, µ max h −1 specific biomass growth rate

The paper presents the results of model-based optimization of fed-batch culture Enterobacter aerogenes 17 E13 for maximization of biomass productivity. A mathematical model for the problem solving is developed using mass-balance conditions for cells’ biomass and limiting substrate, relevant kinetic relationships for modeling the specific rates of biochemical transformations, and experimental data from fed-batch cultivation processes, realized under various cultivation conditions. The optimization procedure refers to the stochastic search algorithm based parametric optimization of flexible time function approximating the feed-rate time profile.

A new composting technology of waste with high fat content was developed in JSC “Biocentras”. The composting technology of fat‐contaminated waste is based on the use of fat‐oxidizing microorganisms. Developed technology is commended for cleaner production/pollution prevention approach as well as meets strict environmental and hygiene requirements. The composting process was investigated for the process optimization by applying the response surface methodology. Values of parameters of composting process were monitored in lab‐scale composters. The optimal composition of the composing mixture was determined: the initial fat content – 5%, the concentration of bacterial preparation cells – 109 CFU/g, the quantity of structural materials – 9.5%. Fat degradation rate slowed down 3 times if the initial fatty concentration increased from 5% to 20%. Concentrated fatty‐waste disposal site prototype was designed. Composting process duration lasted 1 to 1.5 year. Santrauka UAB “Biocentre” sukurt...

The complex, effective and innovative cleaning technology for lipid-rich wastewater and pipelines contaminated by lipids, was developed. For this purpose, laboratory experiments were performed to verify the efficiency of bacterial preparation (Enterobacter aerogenes E13, Arthrobacter sp. N3 and Bacillus coagulans S1) to degrade the grease in water and in drainpipes. The results showed that selected microorganisms intensively degrade grease to light odourless precipitate, water and CO2, thus could be applied in industry. For optimization of technological cleaning processes, the response surface methodology was used. The optimal parameters for biological model wastewater treatment were determined: concentration of grease − 4.5–6.0 g/l, amount of bacterial preparation −5.5–6.0%, pH – 8–9. Due to optimization, the grease degradation rate increased by 20–30%. The optimization of drainpipe cleaning technology was achieved in two stages. During the first stage, the experiments were perform...

A b-1,3-endoglucanase produced by Streptomyces rutgersensis was purified to a homogeneity by the fractional precipitation with ammonium sulfate, ion exchange chromatography on Q-Sepharose and hydrophobic chromatography on Butyl Sepharose. A typical procedure provided 11.74-fold purification with 12.53 % yield. SDS-PAGE of the purified protein showed one protein band. The exact molecular mass of the enzyme obtained by mass spectrometry was 41.25 kDa; the isoelectric point was between pH 4.2-4.4. The optimal b-glucanase catalytic activity was at pH 7 and 50 °C. An enzyme was only active toward glucose polymers containing b-1,3 linkages and hydrolyzed Saccharomyces cerevisiae cell wall b-glucan in an endo-like way: reaction products were different molecular size b-glucans, which were larger than glucose.

In the wake of the man's household activity, large quantities of organic waste are created and their accumulation leads to serious ecological and social problems. Even though in most cases organic waste can be reused in the household and energetics sectors, due to the variety of different chemical components, the complex technology of the waste management and recycling is yet not available in the market. One of the most universal ways to utilize the household and agricultural waste is anaerobic fermentation, which not only degrades waste, but provides the benefit of the energy from emitted bio-gas. However, this method does not completely solve the task of total waste reprocessing into an economically profitable product. Also, after the emission of bio-gas, liquid organic waste still occupies a large volume, has a foul smell and might have toxic substances and pathogenic microorganisms. In this study, the organic household and agricultural waste management technologies, used in the last decades, are discussed and summarized, the sequence of water separation and purification processes and the ways to degrade organic compounds and liquidate undesirable scents are suggested. The results of completed research are presented. During technological processes, water was separated from liquid manure and purified. After the treatment of slurry of concentrated organic components, the dry, sterile and odourless complex of organic and mineral compounds, that can be used for soil fertilization, has been obtained.

The aim of this study was to select keratin-degrading bacteria from JSC “Biocentras” collection and poultry processing plant wastewater, and to study their ability to degrade chicken feathers. Isolated from poultry processing plant wastewater bacteria was grown in basal media with feathers meal and showed high keratinolytic activity and protein content throughout the cultivation time. Bacterial strains B. licheniformis 511, B. subtilis I1, B. subtilis 717, and B. subtilis 103 suggested strongly of bacteria that produces keratinolytic activity in the cell free culture supernatants. The obtained results showed that maximum activity of keratinase is a function of cultivation time by the bacteria tested. B. subtilis 103 reached to its maximum level of keratinase production (152 U/mL) after 24 hrs, when over bacteria (148-242 U/mL) after 48 hrs. The good ability of selected bacteria to degrade feathers was detected. The best biodegradation of feathers was obtained using B. subtilis I-1. ...

The chemical synthesis of surface active compounds is economically inefficient. It requires much energy expense, raw materials and harmful reagents. Biological biosynthesis of surface active substances happens in milder conditions without the use of dangerous chemical reagents. The main goal of this work was to select a microorganism strain capable of producing a bioemulsifier with an ability to create a stable water / fuel-oil emulsion that could be used to design a new ecological heating technology. To this end, 3 microorganism strains displaying a high emulsification activity were used. The new discovered surface active substance (SAS) was investigated with different methods (hydrocarbon overlay agar method, emulsification activity determination, microscopic observation). The production of bioemulsifier (BE) was studied by using soluble and insoluble carbon sources. It was found that Arthrobacter sp. Pr82 is the best bioemulsifier producer. Oleic acid was ascertained as the best ...