bluuebunny/crossref_metadata_2025 huggingface dataset:
Modeling as a tool for reengineering the enterprise production processes
Authors: Kukartsev A V , Kukartsev V V , Tynchenko V S , Petrenko V E , Milov A V
Published: November 2020

Effective reengineering of the main activity of the enterprise requires a systematic approach, covering all stages from project preparation to its implementation. The article shows the algorithm for reengineering the production processes of the enterprise and its implementation on the example of one of the leading manufacturing enterprises of the Krasnoyarsk Territory, Russia. The algorithm includes the construction of structural-functional models using the AllFusion Process Modeler (BPWin) software environment common in Russia and simulation based on the Arena product. A user can develop a technological process or process flow diagrams, as is usually done when describing “as-is” business processes or when designing a “to-be” business process, and then export them to Arena applying these tools together. Reengineering of the main processes according to the proposed stages of the methodology helps to evaluate their effectiveness before making direct changes.
Methodology for effectiveness evaluating of foundry activity organization
Authors: Kukartsev V V , Cherepanov A I , Tynchenko V S , Gek D K , Aponasenko S V , Semenova E I
Published: November 2020

An integrated approach to the methodology of assessing the activities of an industrial enterprise is considered. The emphasis is on the business activity of the industry, which is a reflective factor of the external impact on the industry. N.K. Moiseeva approach, which consists of setting a level of business activity, explaining its changes and predicting its future state as an oscillating system, is used for detailed and completed consideration of business activity. The classical triad is used for determining the main aspects of marketing activity: quality, quantity and time. The marketing is used as a number indicator to determine a state of the industry. In order to calculate marketing activity, many estimates are used, which in the future, together with the selected development function, allow getting the final activity indicator taking into account the current period. The regulation of the marketing activity of the enterprise according to the marketing functions, used in various techniques and methods, is also taken into account.
The software structure for agent-oriented simulation with distributed dispatching
Authors: Melnik E V , Ostroukhov A Y , Pukha I S , Rodina A A
Published: November 2020

This paper deals with the problem of the implementation of the agent-oriented simulation on high-dimensional models in the social science domain. It was shown that high dimensionality of models and the complexity of their development using the existing tools were the main constraint factors. The analysis of existing agent-oriented simulation systems was held. Some special aspects of platforms, on which such systems were performed, were considered. The influence of clustering on the simulation rate was shown. The structure of the software for the agent-oriented simulation using the existing agent-oriented simulation systems on the basis of the distributed scheduler, which provides clustering optimization of a model problem, was proposed.
Suggestions for automation of document flow system at railway freight classification yard
Authors: Olentsevich V A , Gladkih A M
Published: November 2020

Upon condition of the mandatory application of the traffic safety management system in the railway transport system, as well as to add the demands for the carrier of cargo, amendments to the draft law on the railway transport operation have been introduced, which include new requirements: carriers of cargo are required to operate the traffic safety management system. The parameters and quality indicators of the railway transportation process include: the accuracy of the timeline travel time, the value of the service speed, the amount of energy consumed, the cost of maintenance work, the preservation of cargo commodity qualities, etc. In addition to the common problems that attract the attention of railway science, comprehensive automation of processes is a critical task. To address the delay in sending documents, the authors have designed and modeled a device that ensures the automatic redirection of documents by pneumatic tubes. Automation of the pneumatic tubes operation will make it possible to speed up the process of transferring documents to prepare for the departure of freight trains, improve the performance quality of the freight classification yard, increase the capacity of the freight classification yard, as well as eliminate human interference and improve the safety of trains. The project’s technological performance indicators have been determined. This practice will have an economic impact of 4,439.2 thousand rubles per year. The payback period is 2 years.
Modelling of technological solutions implementation processes at forest industry enterprises with system analysis elements
Authors: Shanin I I
Published: November 2020

Studying the problems and existing realities on the practical application of innovative technologies in the forest business, the author set the task of developing a methodological approach aimed at improving the tools for modelling production and technological processes in enterprises engaged in the forest business. The methodological approach being developed has a vector aimed at introducing the latest and innovative technological solutions into the production process. It is characterized by the combination of the most rational production technologies, the choice of forms of forest business, tools and methods of production and technological development of business structures, on the basis of the developed system of indicators-criteria for assessing the production and technological development of forest business entities. The main tool for managing production and technological development in the forest business, in crisis conditions and the need to save resources is the development and implementation of the most innovative technological solutions. The author proposes an approach to modeling based on changing technological business processes on changing streaming processes with optimal use of working capital, production and material resources, used mechanisms and equipment. The simulation was carried out on the basis of the formed methodological approach with elements of system analysis and construction of situation models, using an epignose forecast. The data were based on statistical data of activity of enterprises of the forest industry, sources of formation of funds for technological direction in the structure of using all available forest industry resources for the purpose of increasing the level of functionalization of technological processes.
Digital technologies in the survey of road sections
Authors: Shchegoleva N V , Asoyan A R , Akulova N E , Pronnikov A N , Salamahin P M
Published: November 2020

There are different approaches to road safety surveys [1-5]. To date, the issue of applying a risk-based approach in the road industry is relevant. The authors used the procedure of inspection of road sections in Atkarsk district of Saratov region by road laboratory with the use of digital technologies, dispersion analysis and risk theory for safety on curves in the plan. As a result of the survey, the average values of radii and standard deviations of rounding, tolerances for deviations of the studied parameters, the probability of hazards on the curve in the plan were determined. In the laboratory processing, all obtained mean radii corresponded to the acceptable level of risk. It also shows the critical values of the radii at which the skid or rollover of the vehicle will occur, obtained when determining the risk of loss of stability of the car on the curve in the plan. The methodology was based on the existing regulatory framework for road building requirements of Technical regulations of the Customs Union «Road Safety» TR CU 014/2011, namely taking into account the risk theory.
Determination of the combined power source parameters in a hybrid small class share taxi based on modelling energy consumption process
Authors: Shurov N I , Dedov S I , Shtang A A
Published: November 2020

The study aims to analyze and assess the efficiency of a combined power source of a city share taxi under the Russian climatic conditions. The article considers the main types of hybrid vehicles and determines the most suitable scheme for the operation of small-tonnage vehicles in urban traffic cycle. Optimal values of the power of the primary energy source and the energy intensity of a buffer energy storage are calculated. A model has been synthesized that allows refining the data obtained, as well as to determine fuel consumption, the share of the internal combustion engine operating time, and the depth of the discharge of the energy storage unit when the vehicle is moving in a given driving cycle. As a result, it has been found that the minimum energy intensity makes up 150

Wh

_

, the power of the primary energy source equals 27 kW, the fuel consumption is equal to 5.79 l/100 km, and the percentage of the enabled internal combustion engine makes up 29% for a city minibus which has 3.5 tons.
Automated technologies of urban electric transport as the basis for ensuring the mobility of residents of a modern city
Authors: Stepanov A V , Nikulin M Y
Published: November 2020

The article presents the advantages of using a tram for transporting passengers in a modern city over other means of transportation. These are speed, profitability, environmental friendliness, large capacity, safety. The main task is the fast, safe and mass transportation of passengers. The article presents the current problems of the tram economy of most modern cities. Both the creation of new bodies and the introduction of modern automated systems such as unmanned control systems and automatic traffic control systems (ATCS) can help solve existing problems. The influence of ATCS on driving time is studied on the example of a designed tram line on the section of Dzerzhinsky Avenue from the Birch Grove stop platform to the intersection of Dzerzhinsky Ave. with Trikotazhnaya Street in Novosibirsk. When writing abstracts, articles of authors on this topic from Italy, England, Belgium, China and others were used and analyzed. They offer some solutions to existing problems in the most modern ways and technical solutions. ATCS is already tested and begins to be used in real conditions.
Telemedicine as an opportunity for improving the professional activity of medical specialists working in the emergency medical centres and emergency medical affiliate
Authors: Todorova D G , Andonova A N
Published: November 2020

Telemedicine allows highly specialized medical advice to be provided in case of emergency medical assistance, when there is no doctor in the Emergency Medical Affiliates (EMA) teams or it is necessary to have specialized medical advice. To study, analyze and summarize the opinion of the medical specialists working in the EMC, related to the effectiveness of telemedicine for improving the quality of their professional activity. The study was conducted through a direct anonymous survey in of 2019 with 50 medical specialists working in the Emergency Medical Centers and the EMA in Bulgaria. The study found out: the respondents believe that introducing telemedicine in pre-hospital emergency care will improve the quality of care, the respondents think that it will improve the work in EMC/EMA, located in remote areas and small villages; for of medical professionals telemedicine will be very effective while transporting a patient in the absence of a doctor at EMC/EMA; of the respondents indicate that they have performed activities requiring a higher professional status than theirs, and in such cases telemedicine would have helped; According to the respondents telemedicine will be most effective in the following emergency statuses: heart attack, birth, poisoning, pediatric patients, trauma and geriatric patients.
Selection algorithm and prospects for the use of modern energy storage devices used in vehicles
Authors: Malozyomov B V , Konyukhov V Y , Daudov I M
Published: November 2020

The paper considers the problem of energy-saving technologies in urban electric transport. The possibility of upgrading the rolling stock by installing a storage device is considered. This article analyzes the common energy storage devices used in the electric transport system. It is shown that one of the main ways to increase the energy efficiency of a vehicle is the use of a storage device. It has been revealed that the most promising and satisfying basic requirements for the electric transport system are a supercapacitor-based storage device.
Information development in NBICS-civilization of the XXI century
Authors: Akberov K Ch , Sukhodaeva T S , Malozyomov B V , Rozhkova M V , Shuraev I A
Published: November 2020

The paper examines the development trends of modern information technologies that will determine the paradigm of the–civilization development in the 21st century. The essence of NBICS-technologies is considered in this paper, and their synergetic and convergent characteristics are revealed here. The socio-humanitarian component of the modern society development is analyzed. The influence of convergent technologies on the social structure of society is noted. A new role of the subject in civilized development is shown, and the main tasks are set for transforming the sector of education.
Utilizing NX CAD extension components to model welded joints
Authors: Fedorov A L , Mkrtychev S V , Enik O A
Published: November 2020

The article deals with utilizing NX CAD extension components to model welded joints. The process of building a 3D model of an I-beam and creating welds in it using the NX Weld Assistant component is described. Based on the developed 3D model using the Finite Element Method (FEM) weld calculation and the beam strain-strength analysis are performed. The results of the analysis showed that 3D models of welds created by means of the NX Weld Assistant allow the design engineers carrying out automated research of the developed metal structure with high accuracy.
Engineering analysis of composite aircraft beam element
Authors: Grishkevich P M , Govorkov A S , Yakhnenko M S
Published: November 2020

At present, one of the most promising directions of aircraft engineering is the use of composite materials for airframe manufacture. Hence, it is necessary to study the properties of materials and their compositions, to be able to carry out the engineering analysis of thus made structures and to simulate their behavior under different loading conditions. The use of calculation complexes for the systems using composite materials makes it possible to effectively determine the required properties of composite materials and improve the bearing capacity of the system, rationalize its design. The engineering calculation of the system stiffness properties using the finite-element method was performed. Two versions of models made of composite materials and a model made of isotropic alloy B95 were compared.
An assessment of the potential of using carbon tax revenue to tackle poverty
Authors: Fujimori Shinichiro , Hasegawa Tomoko , Oshiro Ken
Published: November 2020

A carbon tax is one of the measures used to reduce GHG emissions, as it provides a strong political instrument for reaching the goal, stated in the Paris Agreement, of limiting the global mean temperature increase to well below 2 °C. While one aspect of a carbon tax is its ability to change income distribution, no quantitative assessment has been made within the context of global poverty. Here, we explore future poverty scenarios and show the extent to which carbon tax revenue, obtained to limit global warming to well below 2 °C, has the potential to help eradicate poverty. In order to better understand the relationship between poverty and climate change mitigation policy, we developed a novel modelling framework that includes a module representing poverty indicators in the conventional integrated assessment model. We found that the poverty gap, which is a measure of the shortfall in income relative to the poverty line, is 84 billion US dollars (USD) and that the carbon tax revenue potential for the above-mentioned 2 °C consistent climate change mitigation would be 1600 billion USD in 2030. Many low-income countries cannot fill the poverty gap using only their own domestic revenue; however, this shortfall could be met by using a portion of the revenue in high-income countries. Our results demonstrate that climate change mitigation can have a great potential in synergy effects for resolving poverty and illustrates the importance of international cooperation.
Temporal inequality of nutrient and sediment transport: a decision-making framework for temporal targeting of load reduction goals
Authors: Preisendanz Heather E , Veith Tamie L , Zhang Qian , Shortle James
Published: November 2020

Nutrient and sediment transport exhibit strong spatial and temporal inequality, with a small percentage of locations and events contributing to the vast majority of total annual loads. The processes for determining how to reduce total annual loads at a watershed scale often target spatial, but not temporal, components of inequality. We introduce a framework using Lorenz Inequality and corresponding Gini Coefficient to quantify the temporal inequality of nutrient and sediment transport across the Chesapeake Bay watershed. This long-impaired, 166 000 km2 watershed has been federally mandated since 2010 to continually reduce nutrient and sediment loads reaching the Bay. Data were obtained for 108 sites in the Chesapeake Bay’s non-tidal network from 2010 to 2018. The Lorenz Inequality and Gini Coefficient analyses were conducted using daily-scale data for flow and loads of total nitrogen (TN), total phosphorus (TP), and total suspended sediment (TSS) at each gaging station. We leverage these results to create a ‘temporal targeting framework’ that identifies periods of time and corresponding flow conditions that must be targeted to achieve desired or mandated load reduction goals across the watershed. Among the 108 sites, the degree of temporal inequality for TP and TSS (0.37–0.98) was much greater than for flow and TN (0.29–0.77), likely due to the importance of overland versus baseflow in the transport pathways of the respective constituents. These findings stress the importance of informed design and implementation of best management practices effective in ‘hot moments,’ and not just ‘hot spots,’ across impaired watersheds to achieve and maintain water quality restoration goals. The ‘temporal targeting framework’ detailed in this manuscript provides a useful and convenient method for watershed planners to create low- and high-flow load targeting tables specific to a watershed and constituent.
Effect of amphiphilic lignin derivatives (A-LD) surfactant addition on the fermentation process of sorghum bagasse kraft pulp for bioethanol production
Authors: Fatriasari W , Karimah A , Falah F , Anita S H
Published: November 2020

This research was intended to study the effect of Amphiphilic Lignin Derivatives (A-LD) surfactant addition on the bioethanol production by using simultaneous saccharification and fermentation (SSF) system. A-LD synthesis was obtained from single-step lignin isolation from black liquor as a by-product of the Acacia mangium kraft process. This synthesis was carried out by reacting single-step lignin isolation with the polyethylene glycoldiglycidylether (PEDGE), which was heated at 60 °C for one h. SSF was performed by using Saccharomyces cerevisiae InaCC Y93, cellulase enzyme of 50 FPU/g, yeast inoculum in 10% and 20%, and a 15 mg/mL A-LD added into 5.37 g (wet weight) of sweet sorghum bagasse (SSB) kraft pulp. The concentration of reducing sugar and the ethanol contents were analyzed every 24 h for 72 h and also at 89 h. The ethanol concentration, ethanol yield, and the highest percentage of theoretical ethanol yield were 4.91 ± 0.10 g/L, 0.06 ± 0.001 g/g, and 11.29 ± 0.22%, respectively. They were obtained by 20% of yeast inoculum for 24 h fermentation on the SSF system and the addition of A-LD surfactant. The addition of A-LD on the SSF process increased ethanol production and shortened the fermentation time.
Effect of coconut water and banana hump extract on the growth of binahong (Anredera cordifolia (Ten.) Steenis) accessions from lowland
Authors: Hasanah Y , Mawarni L , Hanum C , Nurhaida
Published: November 2020

The application of natural plant growth regulators (PGR) influences the growth of binahong (Anredera cordifolia (Ten.) Steenis). The objective of the current research is to evaluate the growth component of lowland binahong accessions due to the application of natural PGR of coconut water and banana hump extract. The research used factorial randomized block design with 2 factors and 3 replications. The first factor was different accessions of binahong from lowlands (Marelan; Ampera Tmur; Helvetia) in the city of Medan, North Sumatera, Indonesia. The second factor was natural PGR, in which we conducted experiments without the application of PGR; 40% coconut water application, banana hump extract 40%; coconut water 40% + banana hump extract 40%. The results showed that the accessions from Ampera Timur had root dry weight that were higher than the other accessions. The treatment of 40% coconut water + banana hump extract 40% increased plant length, and root dry-weight. Interaction of Ampera Timur binahong accession and 40% coconut water + banana hump extract 40% increased shoot dry-weight and root dry-weight.
Mechanical properties investigation of green composite from ramie (Boehmeria nivea (L.) Gaud) and epoxy
Authors: Ismadi  , Vitasasti S , Nurindah  , Kusumah S S
Published: November 2020

In the last decade, the requirement of friendly environment materials has increased significantly. Green composite material, such as natural fiber reinforced epoxy composite, has been developed to provide an environmentally friendly product. Ramie (Boehmeria nivea (L.) Gaud) fiber and bio-epoxy are potential materials to produce an excellent environmentally friendly composite. The physical and mechanical properties of the composite were evaluated. Each composite material has three different layers of ramie fiber orientation, i.e., 0, 45, and 90°. Ramie fiber contents were varied by 5, 7.5, and 10% w/w of composite weight. The content variations of epoxy matrix hardener were 25 and 50% w/w of matrix weight. The replication of each sample was three times. The making of the ramie fiber-epoxy lamina composite was started with mixing the epoxy with a hardener, followed by pouring the matrix on the mold and coating the layers of fibers layer by layer until a composite was obtained according to the specified layer variations. The sample was poured into mold-press for 24 hours. Then, samples were removed from the mold and put in the oven at 60°C for 24 hours. For conditioning, the samples were placed in an open space at room temperature (27°C) for seven days. The dimension of the samples was 150 mm × 100 mm × 3 mm. For the composite materials, tensile testing and flexural testing standard were ASTM D 638 and ASTM D 790, respectively. The research results showed that the composite with 25 % of hardener (w/w matrix weight) and 5 % of ramie fiber (w/w composite weight) had the lowest thickness swelling (0.17%). However, the highest tensile strength (45.8 MPa) was obtained by the composite with 25 % of hardener (w/w matrix weight) and 10 % of ramie fiber (w/w composite weight). Meanwhile, the flexural strength of the composites with 50 % of hardener, either with 5 or 7.5 % of ramie fiber, was higher than the other composites. Composite materials, which contain 10% of ramie fiber (w/w composite weight) and 25% of hardener (w/w matrix weight), had the best mechanical properties.
Estimation of biodiesel production from used cooking oil of university cafetaria to support sustainable electricity in Universitas Pertamina
Authors: Rahman A , Suryawan I W K , Sarwono A , Zahra N L , Faruqi Z M
Published: November 2020

The objective of this study was to estimate the amount of biodiesel production obtained from the used cooking oil from the university canteen. This research is a literature review supported by the existing condition data of canteen activity at Universitas Pertamina, especially from the amount of used cooking oil produced. Based on the survey questionnaire, the university canteen produced, on average, 36 L/day of used cooking oil. The amount of biodiesel produced was 30.2 L/days, with 83.9% of yield. Using a diesel testing machine, biodiesel with B30 type (30% biodiesel and 70% diesel in volume) held the potential to generate electricity of 3,014 kWh/month. This value is expected to contribute to 12% of lighting in the Rectorate Building used for administration and official activities. Savings of IDR 3,348,857 can be achieved every month by substituting electricity sources into biodiesel. Furthermore, by considering biomass as sustainable renewable energy resources, a reduction in carbon emissions can be valued by 2.2 MTCO2/month.
Characteristics of bioplastic made from modified cassava starch with addition of polyvinyl alcohol
Authors: Syamani F A , Kusumaningrum W B , Akbar F , Ismadi  , Widyaningrum B A , Pramasari D A
Published: November 2020

Food packaging plastic from petroleum-based sources can be a problem to the environment due to its non-biodegradability. The development of bioplastic from modified cassava-starch will be an alternative to overcome that problem. Since starch-based bioplastic usually has low mechanical strength and damage if exposed to water, it’s modification with polyvinyl alcohol (PVA) and citric acid is necessary. Bioplastics are made by heating a solution of modified cassava starch at 75 °C for 1 hour. After starch solution was gelatinized, glycerol (5% based on starch weight) was added, and then PVA solution (25, 50, 100% based on starch weight) was inserted gradually. While stirring was continued, citric acid (5% based on starch weight) was added into the solution. The bioplastic solution was then poured into a 20 × 20 cm acrylic sheet and cooled at room temperature for 3 days, so that the bioplastic sheet was ready for mechanical strength test (ASTM D 882-75b Tensile Properties of Thin Plastic Sheeting) and for thermal properties test with Thermo Gravimetric Analyzer. The results suggested that the addition of 25% polyvinyl alcohol (PVA) into bioplastic made from modified cassava starch produced bioplastic with higher tensile strength compare to that without PVA addition. On the other hand, the addition of 100% PVA could slightly increase bioplastic elongation. The decomposition temperature of bioplastic made from modified cassava starch with 50% PVA was higher than that of the bioplastic without PVA addition, indicated that bioplastic with 50% PVA was more thermally stable.
Antioxidant activity of isolated phytoconstituents from the leaves of Hyptis suaveolens (L.) Poit
Authors: Aye S S , Win K C , Sin K T
Published: November 2020

Hyptis suaveolens (L.) Poit (Family Lamiaceae) is a medicinal plant used traditionally for antifertility, anti-inflammatory and antiplasmodial properties. Therefore, this study was designed to isolate bioactive compounds and to evaluate the antioxidant activity of isolated compounds from H. suaveolens by silica gel Column Chromatographic separation method and gallic acid (10 mg) was mainly isolated. Among them, the isolated compound was structurally characterized by physicochemical determination and spectroscopic techniques such as UV, FTIR and 1H-NMR by comparing with the reported data. Moreover, the essential oil was extracted from the fresh leaves of H. suaveolens by the hydro-distillation method and analyzed by GC-MS. It was found that carophyllene, sabinene, and naphthalene were predominant compounds in the essential oil of H. suaveolens. The antioxidant activity of isolated compounds and essential oil was determined by DPPH free radical scavenging assay method. The results suggest that the major compounds gallic acid from H. suaveolens possess effective antioxidant activity.
The enhancement of added value of agarwood by diversification product
Authors: Gusmailina  , Sumadiwangsa S
Published: November 2020

Non-timber forest products are one group of commodity forest products that need to be optimally used because they are generally high value and can be utilized directly and cultivated by communities around the forest. One of the commodities is agarwood, in which the value varies greatly. Its price per kg ranges from 10 thousand to 10 million. The price of low-quality aloes, or often called kemedangan, also varies greatly from 10 thousand to several million rupiahs for each kg. Until now, agarwood is only obtained from natural products, in which its potential is depleting and has been included in Appendix II Cites IX in Florida. Kemedangan has the opportunity to increase its utilization, such as the isolation of chemical components by distillation (essential oil) and extraction using organic solvents (extracts) or diversification of products such as the manufacture of the synthetic aloes (black magic wood / BMW), incense, makmul, and hio. This paper presents, in general, the profile of Indonesia’s agarwood and the prospect of increasing added value through diversification of products, such as efficient refining, extraction, and manufacturing of finished products.
Screening of antibiofilm activity and toxicity assay of methylotrophic bacteria compounds isolated from the human mouth
Authors: Raissa G , Waturangi D E
Published: November 2020

Biofilm is a community consisting of one or more species of bacteria attached to a surface using a matrix. Biofilms can cause health problems in humans, such as dental plaque. Biofilm is one form of self-defense of bacteria against antibiotics, so biofilm often has implications for the rise in resistance of bacteria. Therefore, antibiofilm compounds can be used to increase the sensitivity of bacteria to the antimicrobial agent. The purpose of this study is to determine the antibiofilm activity and the potential toxicity of the methylotrophic bacteria compound isolated from the human mouth. Based on the results of the study, 21 out of 37 isolates of methylotrophic bacteria had antibiofilm activity using two different supernatant concentrations (5% and 10%). The isolate of M28L2 showed the highest anti-biofilm inhibition activity: 47.64% against EHEC and 50.97% against Pseudomonas aeruginosa ATCC 27583. Meanwhile, M30G1 isolate showed the highest anti-biofilm destruction activity: 44.062% against EHEC and 39.17% against ETEC. Toxicity test was performed on five isolates that had the highest antibiofilm activity using a lethal dose test. Based on these test results, five isolates had LC50 values greater than 1000μg/mL, indicating that the compound was not toxic. Subsequently, PCR amplification for the DNA sequencing stage was performed on one isolate, M28L2. Based on the sequencing results, M28L2 had a 99% similarity to Pseudomonas stutzeri.
Radial variation of wood properties of eight years-old fast-growing teak (Tectona grandis - Platinum teak wood)
Authors: Adi D S , Himmi S K , Sudarmanto  , Amin Y , Darmawan T , Dwianto W
Published: November 2020

The objective of this research was to determine the wood basic properties of eight years-old fast-growing teakwood (Tectona grandis – Platinum teak wood), in the radial direction of the stem. The anatomical features of the examined teak wood showed semi-ring porous and in general, they had a similarity to those of the conventional teak wood. The ray cell proportion was increased along with the increased distance from the pith area. The size of vessel cell tended to change from pith to the outer part. The radial (R) and tangential (T) shrinkage had improvement compared to those of five years-old Platinum teak wood. The R and T shrinkages were 2.89% and 6.2%, respectively. The present results suggested that wood properties of eight years-old Platinum teak wood is more stable than those of five years-old as reported in the previous study. The compression strength was also increased during the increase of growth age. The values of compression perpendicular and parallel to the grain were 76.74 kg/cm2 and 367.9 kg/cm2, respectively. The increasing of the radial properties indicated that eight years-old Platinum teak wood was still in juvenile stage.
The presence of potentially invasive alien plant species in Laiwangi-Wanggameti National Park and vicinity, Sumba, Indonesia
Authors: Damayanto I P G P , Ervianti D
Published: November 2020

The study was aimed at providing data on the presence of potentially invasive alien plant species in Laiwangi-Wanggameti National Park and vicinity. The study was conducted using the taxonomic data collection methods, which took place in Laiwangi-Wanggameti National Park and vicinity, East Sumba, Indonesia. The plant material was collected for herbarium specimens and shipped to Herbarium Bogoriense for processing and identification. One hundred and four species of plants were collected in Laiwangi-Wanggameti National Park and vicinity. Of those collections, three invasive alien plant species were identified in the national park:Austroeupatorium inulifolium, Melastoma malabathricum, andThespesia lampas.Another one wasJatropha gossypiifoliafound outside the national park.
Carbon dioxide absorption and physiological characteristics of selected tropical lowland tree species for revegetation
Authors: Davis L O M M , Hidayati N
Published: November 2020

Biological diversity can make a significant contribution to reducing greenhouse gases in the atmosphere. Trees form an essential part of the functioning of the terrestrial biosphere, especially in the carbon cycle. Yet, tree photosynthesis is far less studied than crop photosynthesis. This research aims to assess CO2 absorption-related physiological characteristics of selected tropical lowland trees that are curated in Cibinong Science Center-Botanical Garden (CSC-BG) Indonesia for revegetation prospecting. CO2 absorption, stomatal conductance, and transpiration were measured using an infrared gas analyzer photosynthesis system. Meanwhile, leaf chlorophyll content was estimated using a SPAD chlorophyll-meter. CO2 absorption rate ranged from 3.42 to 20 μmol m−2 s−1. The highest rate was observed in Teijsmanniodendron bogoriense followed by Tectona grandis (19.67 μmol m−2 s−1). The rate of transpiration ranged from 4.7 μmol m−2 s−1 to 7.82 μmol m−2 s−1. Diospyros discolor was the highest, followed by T. grandis (7.65 μmol m−2 s−1). CO2 absorption and rate of transpiration were positively correlated to stomatal conductance. In contrast, the CO2 absorption and chlorophyll content were very weakly correlated. The stomatal conductance ranged from 0.14 to 0.54 μmol m−2 s−1, with that of T. grandis was the highest, followed by Erythrina crista-galli (0.53 μmol m−2 s−1), whereas the chlorophyll content ranged from 31 up to 78.43 SPAD.
High corolla color variation of Hoya coronaria Blume in Belitung Island: Potential use and conservation
Authors: Rahayu S , Fakhurrozi Y
Published: November 2020

Genus Hoya (Apocynaceae: Asclepiadadoideae) has become popular as an ornamental plant due to the beauty of its shiny, waxy, star-shaped corolla with various color. Normally, each species has specific corolla and corona color. However, some species have variations in corolla color, for example, Hoya coronaria Blume. Normally, H. coronaria has white with pinkish dotted corolla color, rarely with red corolla color. H. coronaria is distributed from South Thailand, Malay Peninsula, Java, Borneo, and Sumatra as well as in Belitung Island. We surveyed the population and corolla color of H. coronaria in Belitung Island in June 2019. The RHS color chart was used to determine the color. We found eight accessions with different corolla and corona color variation of H coronaria in Belitung Island, ranging from white, cream, pink, peach, deep pink, yellow, red, and deep red. This variation was very high, and the population of Hoya coronaria was well developed in the heath forest habitat of Belitung Island. Further utilization was suggested as a domesticated ornamental plant with proper characterization to support further breeding program. H coronaria was also a component of the heath forest habitat of Belitung Island, which is very fragile. Thus the ex-situ and in situ conservation were suggested for sustainability.
The diversity of tree species at the buffer zone of Karst Citatah, West Java, Indonesia
Authors: Hidayat M Y , Suryanti T
Published: November 2020

Karst area is an ecosystem type that has an important function as water conservation. It is essential to know the composition and structure of the trees species of the karst area. This current study aims to determine the diversity of species and their potential in the buffer zone of Karst Citatah, West Java, Indonesia. The data on tree species composition were collected by using a plot employed on a community forest land, which was spread in three villages. Vegetation analysis was conducted by a census (100%) in all selected sampling areas. The importance value index (IVI) showed that sengon species (Paraserianthes falcataria) were dominant, both rejuvenation level (79.23) and tree-level (165.71). The diversity index of rejuvenation level was very stable as it had a range of H’ > 2 compared to the tree level that had a range of H’ value 1-2. The dominance index was only seen at the tree level, i.e., sengon (Paraserianthes falcataria) species, where the C value was one. At the level of rejuvenation, there was no visibility of the domination of one species to other species. The similarity index at rejuvenation level and tree-level were quite high (> 55%). The regeneration at the rejuvenation level grows well until it reached the tree level. The suggested pattern of management that is suitable according to the vegetation structure in the research area is a public forest with a mixed garden system.
Subpixel precision in registration of multimodal datasets
Authors: Lebl Matej , Blazek Jan , Striova Jana , Fontana Raffaella , Zitova Barbara
Published: November 2020

The motivation for our research is the huge demand for registration of multimodal datasets in restorers practice. With an increasing number of various screening modalities, each analysis built on the acquired dataset starts with the registration of images acquired from different scanners and with varying levels of mutual correspondence. There is currently no well-suited state of the art method for this task. There are many existing approaches, i.e. based on control points or mutual information, but they do not provide satisfying (subpixel) precision, thus the registration is very often realized manually in Adobe Photoshop or any similar tool. Another popular option is to use scanners able to produce registered datasets by design. During the last 10 years, datasets from these devices have extended available analytical techniques the most.

In our research, we focus on solving the mentioned registration task. In [1] we concluded that the work with misregistered modalities is possible but limited. Now we present results of our experiments challenging these limits and conditions under which we can precisely register data from different modalities. The achieved results are promising and allow usage of more complex artificial neural networks (ANN) for dataset analysis e.g. [2]. We describe the construction of registration layers for estimation of shift, rotation and scale and a useful strategy and parametrization for ANN optimizer.
Marina Militare-Amerigo Vespucci Implementation Of The Digital Survey And Database For The Management Of Italian Naval Excellence
Authors: Bertocci Stefano , La Placa Silvia , Ricciarini Marco
Published: November 2020

The survey project of the Amerigo Vespucci is part of a research line that DiDA, Department of Architecture of the University of Florence, developed through an experience of collaboration and partnership with the Department of Defense. For more than two years, the Department has been involved in the study of the Cascine park, in Florence, analyzing the architectures of historical value, with a particular focus on the Scuola di Guerra Aerea. The documentation of the architectural heritage received in recent years an innovative technological boost, which led to the development of new modern methodologies of investigation. It is possible to apply integrated survey methods not only to immovable assets such as historical buildings, which abounds in our country, but also to movable ones, included vessels. By now, the processes of data registration and graphical restitution of the survey, both laser-scanner and photogrammetric, are functioning and consolidated, and can therefore be applied in research projects, if the appropriate considerations on the specific asset typology of the subject of study are taken. The application of specific instruments in support of the survey and architectonic representation enables us to achieve increasingly accurate results, engaging multiple aspects of the structure under study. The project investigating the Nave Scuola Amerigo Vespucci allows to expand the current knowledge on the sailboat in order to provide, through survey methods and architectonic representation, the documentation necessary to conduct future renovations and wood restorations. The aim of the present research is to create a digital database that, similarly to those used for buildings of historical value, would facilitate the management of this excellent asset of the Italian Navy.
Methodologies for dating wooden artefacts
Authors: Bernabei Mauro
Published: November 2020

In recent years, constant progress has been made with regard to wood-dating techniques. In Italy, both the number and length of dendrochronological reference chronologies have increased so that by now the last 10,000 years are almost completely covered. This indispensable dating method has provided new ways for studying archaeological and prehistoric finds. New technologies have remarkably improved the sampling techniques, which today, in most cases, are very effective and non-evasive. Modern software now allows easy data management and statistical analyses. Apart from dendrochronology, the diffusion of isotope analysis has also had great impetus. With regard to radiocarbon dating, the calibration curve has been enriched by new data, and several peaks of cosmic emissions have been identified that, in future, can be instrumental in improving dating precision. Apart from radiocarbon, the isotope analyses of O, H and Sr, especially if linked with dendrochronology, allow to refine the information regarding dating and, in many cases, permits to determine the timber’s provenance and even to define precisely the environmental conditions for the growth of the tree, from which the wood has been obtained. Today, finally, we can assert that all wood can be dated. Only the precision of dating still varies but constant progress is being made in that regard, too.
Microbial contamination of libraries and archives: risk assessment and contamination control
Authors: Bosco F , Demichela M , Barresi A A , Fissore D
Published: November 2020

Freezing of the paper material is a way to control the growth of microorganisms and the possibility of “acute” biodeterioration and illness, after accidental events, e.g. flooding. But as the paper-born microorganisms can survive after lyophilisation, they must be controlled also after the drying process. The decision-making about the adoption of prevention and protection measures for the exposed operators’ safety, among which the possibility to control the biodeteriogenic and toxigenic microflora growth by the application of Thymus vulgaris oil, was supported not only by the experimental results but also through a dedicated risk assessment procedure.
Geomatic multiscale approach for the conservation of archeological sites: the case of Alba Fucens (L’Aquila-Italy)
Authors: Alicandro M. , Dominici D. , Quaresima R. , Zollini S. , De Luca D. , Pietrangeli S.
Published: November 2020

The archaeological site of Alba Fucens (L’Aquila, Italy) (303 BC) is the largest archaeological area of the whole Apennines. Extension, location and environmental context of the site require new methods for risk mitigation and conservation. In this paper, a multiscale geomatic approach, based on remote sensing and UAV photogrammetry, is reported. The main purpose is the extraction of architectonic and weathering information, useful for a better fruition and conservation. For a multiscale approach, very high resolution satellite images (WorldView2) and UAV Photogrammetry technique have been used. The satellite image processing, performed by Normalized Difference Vegetation Index (NDVI), High-pass filter, Principal Component Analysis (PCA) and classification, allowed to detect buried or emerging structures and to estimate fire and erosion risks.

On the other hand, UAV photogrammetry technique allowed to evaluate detailed architectural information of the buried (ima, media and summa caveae) and excavated amphitheatre structures (arena, podium and steps). Furthermore it was also possible to systematically acquire complete and reproducible data on stone materials (limestones) and their weathering (loss of stone material, natural or anthropogenic break out, deposits, efflorescences, dark or light crusts, biological colonization, granular and crumbly disintegration, flaking and fissures).

With a multiscale and metric approach, the geomatic techniques allow to deeply investigate the monument-mapping and to create a detailed 3D models. In this way, the stone decay, the risks and their mechanisms can be evaluated, in order to plan and perform future actions and interventions for their mitigation.
A low-cost ChArUco-based 3D scanner for cultural heritage
Authors: Puggelli Luca , Furferi Rocco , Volpe Yary , Governi Lapo
Published: November 2020

In the region of the cultural patrimony, operators use high-resolution orthophotos of paintings for the restoration, monitoring and electronic recording and exhibition purposes. Unfortunately, artworks that are to be restored and/or shown in digital museums are painted on canvas that are far from perfectly planar. Professional documents surrounding an artwork to be preserved in digital collections or museums can therefore be enhanced with information relating to the paintings’ 3D structure. This paper proposes both the design of a portable low-cost device that enables the acquisition of 3D geometry of painting and the procedure for triangulation of 3D data. This process uses a set of fiducial markers to set and continuously control the mutual orientation of the laser source and the camera and works accordingly to the principle of laser-camera triangulation.
How can augmented reality improve the user experience of digital products and engagement with cultural heritage outside the museum space?
Authors: García Münzer M
Published: November 2020

The purpose of this study is to understand how augmented reality is improving the user experience of cultural heritage and museums by making it more engaging and allowing the user to better remember the information relayed. Specifically, this study aims to better understand the use of augmented reality, and how institutions are making use of it by interviewing people involved in two apps that operate outside the museum space. This study can conclude that augmented reality has improved the information delivered and some aspects of the user experience. However, it is difficult to argue that augmented reality is completely improving the user experience of cultural heritage and museums.