bluuebunny/crossref_metadata_2025_split huggingface dataset:
Selection of the Protocol for Receiving Data Transmission and Development of an Algorithm for Selecting The "Master" Processor Module for a Reconfigurable Real-Time Computer Network
Authors: Aseev D. A. , Borzov D. B. , Titov V. S. , Chernetskaya I. E. 
Published: March 2023

Purpose of research. Computing networks of a plurality of processor modules have existed for a long time, however, with the development of wireless technologies, the possibility of high-quality and inexpensive implementation of the idea of real-time reconfigurable computing networks (RRTCN) has emerged. The purpose of this work is to select a wireless data transmission network for the RRTCN and create an algorithm for the dynamic selection of the "master" processor module.Methods. The research methods of the work are based on the definitions of the theory of sets and graphs. In particular, a grapho-theoretical approach to distribution is taken as a basis, supplemented by the introduction of a system of criteria for a reconfigurable real-time computing system based on a wireless data transmission protocol.Results. In this paper, the most suitable data transfer protocol for the local RCSRV is selected, a developed mathematical model of changing a real-time computing system built on a wireless protocol is presented, and an algorithm for selecting the processor module (PM) of the RCSRV "master" is developed. The novelty of the work is the use of the distance matrix for the mathematical description of the change in the RRTCN and its use to determine the PM of the "master" in the aircraft.Conclusion. The developed algorithm for choosing the PM of the "master" RRTCN and the mathematical model of changing the position of the PM in a real-time computer system built on a wireless protocol allows organizing the optimal choice of the PM of the "master" in a reconfigurable computing system. On the basis of the presented mathematical model, in the future, it is possible to create a full-fledged mathematical model of the RRTCN and an algorithm for placing tasks in it.
Information System of the Robotic Towing Airfield System
Authors: Afonin D. V. , Kochergin O. B. , Yatsun S. F. 
Published: March 2023

Relevance. The development of aviation technology is associated with the development of new means that directly ensure the movement of aircraft (AF) at the airfield. To carry out ground maneuvers with aircraft, towing airfield systems (UAS) are used, which can significantly reduce noise and air pollution near the airport, as well as reduce the inefficient resource consumption of aircraft engines and provide significant savings in aviation fuel. UAS is also used when the aircraft loses the ability to move and is located on or near the working area of the airfield, which creates a serious problem leading to the closure of the airport for flights, while airlines incur significant losses.Purpose of research. Improving the efficiency of the towing airfield system through the development of an information system. Objectives. Development of the structure of a robotic towing airfield system, drawing up a structural diagram of the ACS layout of the towing platform, design of block diagrams of the logical controller of the ACS platform.Methods. The level of horizontal deviation of the platform from the contrast line was chosen as the setting influence determining the position of the platform in space, which is measured by analyzing images coming from the technical vision system installed on the tow truck. Results. In the course of the study, the structure of a robotic towing airfield system was developed. Based on this structure, a block diagram of the ACS layout of the towing platform was designed and a block diagram of the logical controller of the ACS platform was developed.Conclusions. 1. The structure of a robotic towing airfield system has been developed, including a mobile tow truck, a coupling device, an aircraft, and an on-board control system. 2. An algorithm for controlling the positioning of a robotic towing airfield system based on the logical processing of signals of an optocoupler matrix has been developed. 3. Algorithms have been developed for controlling the movement of the RBAS along a given contrast line under the action of external disturbing influences of a deterministic and random type, allowing for high-precision movement of the RMB.
Optimization of the Management System for the Implementation of National Projects in the Region According to the Criterion of Returning to a Given Target Program
Authors: Averchenkova E. E. 
Published: March 2023

Purpose of research. The purpose of the study is to formalize one of the optimization criteria in the management system for the implementation of National development projects in the region of the Russian Federation.Methods. The methods of system analysis and decision-making were used in the study, which made it possible to determine such an optimization criterion in the management system for the implementation of National development projects in the Russian Federation region as the ability to return to the original target program for the implementation of National projects in the regions of the Russian Federation, determined by the reaction to an error at the end of the transition process.Results. An optimization criterion has been developed that determines the ability of the management system for the implementation of National development projects in the region to return to the specified target program for the implementation of National projects in the regions of the Russian Federation. Identification of the prevalence, or excess of error, in the dynamics of indicators of National projects of the Russian Federation will allow for timely adjustment of management decisions taking into account the time factor.Conclusion. The obtained optimization criterion in the management system for the implementation of National development projects of the Russian Federation region will further determine the optimization task - the search for a controlling influence on the system of indicators of socio-economic development of the region in the context of the implementation of National projects of the Russian Federation.
Practical Benefits, Challenges, and Recommendations on Social Media Recruitment: Multi-Stakeholder Interview Study
Authors: Goldman Nina , Willem Theresa , Buyx Alena , Zimmermann Bettina M 
Published: March 2023

Background
The increasing use of social media opens new opportunities for recruiting patients for research studies. However, systematic evaluations indicate that the success of social media recruitment in terms of cost-effectiveness and representativeness depends on the type of study and its purpose.

Objective
This study aims to explore the practical benefits and challenges of recruiting study participants with social media in the context of clinical and nonclinical studies and provide a summary of expert advice on how to conduct social media–based recruitment.

Methods
We conducted semistructured interviews with 6 patients with hepatitis B who use social media and 30 experts from the following disciplines: (1) social media researchers or social scientists, (2) practical experts for social media recruitment, (3) legal experts, (4) ethics committee members, and (5) clinical researchers. The interview transcripts were analyzed using thematic analysis.

Results
We found diverging expert opinions regarding the challenges and benefits of social media recruitment for research studies in four domains: (1) resources needed, (2) representativeness, (3) web-based community building, and (4) privacy considerations. Moreover, the interviewed experts provided practical advice on how to promote a research study via social media.

Conclusions
Even though recruitment strategies should always be sensitive to individual study contexts, a multiplatform approach (recruiting via several different social media platforms) with mixed-methods recruitment (web-based and offline recruitment channels) is the most beneficial recruitment strategy for many research studies. The different recruitment methods complement each other and may contribute to improving the reach of the study, the recruitment accrual, and the representativeness of the sample. However, it is important to assess the context- and project-specific appropriateness and usefulness of social media recruitment before designing the recruitment strategy.
Seasonal and elevational variability in dwarf birch VOC emissions in Greenlandic tundra
Authors: Rieksta Jolanta , Li Tao , Davie-Martin Cleo Lisa , Simin Tihomir , Aeppli Laurids Christian Brogaard , Høye Toke Thomas , Rasmussen Morten Arendt , Rinnan Riikka 
Published: March 2023

Rising temperatures amplify biogenic volatile organic compound (VOC)
emissions from arctic vegetation, causing feedbacks to the climate
system. Changes in climate also alter plant physiology and vegetation
composition, all of which can influence VOC emissions. Moreover, leaf
development and biotic stresses cause highly variable emissions during
the growing season. Therefore, linking VOC emissions with plant traits
and tracking responses to climate change might provide better
understanding of VOC emission regulation under future conditions.
We measured VOC emissions and other plant traits in dwarf birch
(Betula glandulosa) at two elevations in Narsarsuaq, South
Greenland. The measurements were performed in warming experiments that
have run since 2016. We collected VOCs using the branch enclosure method
from early June until late July 2019 (n = 200).
Emissions of green leaf volatiles (GLVs), oxygenated monoterpenes
(oMTs), and homoterpenes followed a seasonal trend. VOC emission rates
and the diversity of the VOC blend decreased at the end of the
measurement period. Differences in VOC emission rates between elevations
were most pronounced early in the season. Most traits did not explain
the variation in VOC emissions.
We show strong seasonal variability in VOC emissions within the growing
season, which are likely driven by leaf phenology. While the diversity
of VOCs was greater at the milder low-elevation site, VOC emission rates
were higher or similar at the harsher high-elevation site, showing
stronger VOC emission potentials than previously assumed. Seasonal
variations in the VOCs are crucial for accurate predictions of current
and future VOC emissions from arctic ecosystems.
Land Cover Changes Based on Landsat Imagery Interpretation
Authors: Rahayu Chairiyah Umi , Indarto Indarto , Pradiksa Alfian Wiji , Putra Bayu Taruna Wijaya , Nadzirah Rufiani 
Published: March 2023

This paper presents the use of satellite data (i.e., Landsat-5 & Landsat-8) to interpret the change of land cover from 1997 to 2020. The study area covers the administrative boundary of Lumajang Regency. The land-cover map of the year 1997 derived from Landsat-5. The Land-cover map of the year 2020 interpreted from Landsat-8. This study uses two methods of image classifications (i.e., unsupervised and supervised). The procedure includes image enhancement, registration, and classification. Then, classification results evaluated by confusion-matrix (overall and kappa accuracy). The supervised classification produces 7 classes of Land cover (i.e., forest, pavement/urban area), paddy field, plantation, rural area, water body and sand mining area. Unsupervised classification produced four 5 class i.e., forest, built-area, paddy field, rural area, and plantation. Supervised classification done the overall and kappa accuracy = 86% and 82%, while unsupervised classification = 73% and 64% for 1997 imagery. Furthermore, for 2020 image, the Supervised classification reaches the overall and kappa accuracy = 93% and 90%, while unsupervised classification done 81% and 72%. The supervised classification method gives a better result than un-supervised. Comparison of 1997 to 2020, it also shows the increase in pavement or build-area, followed by paddy field, rural area, and sand-mining. The change also appears as the decrease in forest and plantation areas.Keywords: Landsat-5, Landsat-8, Unsupervised, Supervised, Lumajang
Effect of Drying Temperature on Quality of Dried Red Ginger (Zingiber Officinale Var. Rubrum)
Authors: Nasution Addiena Syahvina , Hasbullah Rokhani , Hartulistiyoso Edy 
Published: March 2023

Red ginger is a source of herbal medicines that contain phenolic compounds. The advantage of red ginger as an herbal medicine requires proper handling and treatment so that the phenolic compounds in red ginger are not damaged. Drying is the right method for obtaining red ginger extract. The aims of this study were to investigate the effect of temperature on the proximate composition of dried red ginger and to investigate the suitable temperature for drying red ginger. Red ginger drying was carried out at various temperatures (40, 50, and 60 °C). The simplicia of red ginger was then mashed and sieved. Measurement of the quality of the simplicia included yield, moisture content, ash content, fat content, protein content, crude fiber content, and carbohydrate content. Dried red ginger was observed that all parameters examined were affected by drying at various temperatures except for ash content. The result of drying temperature at 50 °C showed a better quality of dried red ginger based on yield (17,64%), moisture content (6,88%), protein content (1,80%), and crude fiber content (1,86%). Keywords: Drying, Proximate, Red ginger, Simplicia, Yield.
Arduino-Based Data Acquisition Device Design for Specific Heat Determination of Hot Vegetable Oil
Authors: Kusuma Redika Ardi , Radi Radi , Saputro Arifin Dwi 
Published: March 2023

Vegetable oil is commonly used for cooking and frying at high temperatures. Information on the oil's specific heat in a process can help estimate the time and energy spent to reach a particular temperature. However, finding an accurate and affordable instrument for measuring specific heat at high temperatures was complex. This study aimed to design a prototype data acquisition device (DAQ) that can support the specific heat of high-temperature vegetable oil determination using the Joule experiment and Newton's correction. This study had two stages: prototype design/construction and prototype testing. The DAQ prototype consisted of a PZEM-003 power sensor, a PT100 temperature sensor, a relay, and an Arduino Mega 2560. The measurement results were displayed on an LCD and recorded in Microsoft data streamer. The prototype was tested by comparing the temperature, voltage, and current with commercial instruments resulting in accuracy and precision of 99.97% (99.95%), 99.97% (99.86%), and 99.99% (99.86 %), respectively. Performance tests showed that the specific heats of canola, corn, and sunflower oils at 100°C based on DAQ data analyzed separately were 2.119 J/kg.°C, 2.082 J/kg.°C, and 2.458 J/kg, respectively. The specific heat values were close to those in the reference, with an accuracy of 94.22%, 97.29%, and 99.80%, respectively. Keywords: ATmega2560, DAQ, Heat capacity, Hysteresis, Vegetable oil
Extraction of Phenolic Total Compound and Determination of Antioxidant Activity of Cocoa Leaves Extracted Using Various Solvents
Authors: Hartiningsih Subekti , Supriyanto Supriyanto 
Published: March 2023

In the cultivation of cocoa plants there are by-products, one of which is cocoa leaves. This by-product comes from periodic pruning of cocoa plants which has not been utilized optimally. Phenolic compounds contained in the cocoa leaves are known as bioactive compounds which also have a role as antioxidants. The content of bioactive compounds in cocoa leaves can be extracted from plant tissues by extraction method. The objective of this research was to achieve cocoa leaf extract with the highest antioxidant content using the maceration method. Extraction by maceration on old cocoa leaves with a variety of solvents, namely methanol, acetone, and ethyl acetate. The results showed that the extract of old cocoa leaves with methanol as a solvent showed the highest content of polyphenolic compounds. A yield of 7,129% was attained from old cocoa leaves with total phenolic content of 349,952 ± 0,051 mg EAG/g sample, EC 50 antioxidant value of 287,958 ± 0.144, and antioxidant activity of 86,928 % RSA. The yield of phenolic compounds and antioxidant activity contained in cocoa leaf extract (sequentially from the highest) were obtained with methanol solvent, followed by acetone and ethyl acetate solvents. Keywords: Antioxidant activity, Bioactive, Cocoa leaf, Methanol solvent, Yield
Physicochemical Characteristics of Anthocyanin Extract Powder from Black Rice Based on Maltodextrin and Skimmed Milk Powder Ratio as Encapsulant
Authors: Nurhidajah Nurhidajah , Rosidi Ali , Yonata Diode , Nrrahman Nurrahman , Pranata Boby 
Published: March 2023

Anthocyanins are bioactive components in black rice. Black rice anthocyanins are potent antioxidants, so they have the potential to be developed into functional food products. As a bioactive component, anthocyanins in extracts have low stability to environmental conditions such as light, temperature, and pH. Encapsulation process using the spray drying technique is known to protect and increase the stability of anthocyanin bioactive compounds. Maltodextrin (MDE) is widely used as a coating material in the encapsulation of anthocyanins using the spray drying technique with many advantages. However, skim milk powder (SMP) was found to encapsulate black rice anthocyanins efficiently. This study's general objective was to determine the effect of the ratio of MDE and SMP as an encapsulant on black rice extract powder's physical and chemical characteristics. The research method is an experimental type using a single factor Completely Randomized Design (CRD), which consisted of 6 treatments, namely the MDE:SMP ratio (100:0, 90:10, 80:20, 70:30, 60:40, and 50:50). The results showed that there was a very significant effect of the ratio of MDE and SMP on the physical and chemical characteristics of coated anthocyanin powder. MDE and SMP ratios of 50:50 resulted in coated anthocyanin powder's best physical and chemical characteristics. Keywords: Black rice extract, Coating material, Encapsulation, Physicochemical characteristics.
Infiltration Model of Mediterranean Soil with Clay Texture
Authors: Faridah Sitti Nur , Achmad Mahmud , Jamaluddin Tisha Aditya , Jusmira Jusmira 
Published: March 2023

Infiltration plays an essential role in increasing the soil water content as a part of the hydrological cycle. Infiltration affects surface runoff and soil conservation. It also determines the sustainability of the groundwater system. Heavy rain intensity exceeding the infiltration capacity will result in surface runoff, and excessive surface runoff will cause soil erosion. This study aims to investigate the suitable infiltration rate model in the Mediterranean soil of clay textured with various soil conditions. Infiltration rate measurement employed a double-ring infiltrometer in soil without and with tillage. The applied infiltration rate model was an empirical model and the function of time, which includes the Kostiakov, Horton, and Philip Models. The results demonstrated that the Mediterranean soil infiltration rate with a clay texture was 0.91 cm/min and was relatively higher in the soil without tillage. The suitable infiltration rate model to be applied in soil conditions without and with tillage is the Kostiakov Model f = 0.700 t-0.25 and f = 0.682 t-0.22, respectively. The Kostiakov model is the most suitable infiltration rate model in Mediterranean textured clay, without tillage conditions, with a determination value of 0.988 and a deviation value of 0.005. Keywords: Horton model, Philip model, Infiltrometer; Kostiakov model, Tillage
Production of Botanical Seeds and Shallot Boobs with Vernalization and Giberrylin (GA3) Treatment in Highland Areas
Authors: Idhan Abubakar , Syam’un Elkawakib , Riyadi Muh. 
Published: March 2023

Vernalization and Gibberellin (GA3) solution can be applied to simultaneously increased shallot production and TSS (True Shallot Seed) in the highlands. The research aimed to obtain shallot varieties that are able to naturally flower more and have high growth and production. This research was carried out in the form of split plot experimental design. The main plots consisted of five shallot varieties selected from the adaptation test, which resulted from planting in the lowlands and highlands, namely the Bima Brebes variety (V1), Manjung variety (V2), Bauji variety (V3), Bangkok Jeneponto variety (V4), Mentes variety (V5). The sub-plots consisted of 4 stratifications of vernalization temperature, namely: room temperature (F1), 4°C (F2), 8°C (F3) and 12°C (F4). The sub-sub-plots consist ed of 4 concentrations of gibberellins GA3 in aquades, namely: 0 ppm (H1), 50 ppm (H2), 75 ppm (H3), and 100 ppm (H4). Each treatment was repeated three times, so as to obtain as many as: 5 x 4 x 4 x 3 = 240 experimental plots. Results showed that shallot varieties have different responses to vernalization and gibberellin GA3 treatment. No stratum of vernalization temperature and certain GA3 concentrations were found that consistently supported certain observational parameters on the growth and production of five shallot varieties. Manjung and Bauji varieties were observed as having great potential to produce more flowers and botanical seeds in highlands. Keywords: Giberrylin, Highlands, Shallot boob, TSS, Vernalization.
Estimation of Erosion Potentials through Utilization of Remote Sensing Data and The Universal Soil Loss Equation Model
Authors: Faisol Arif , Mashudi Mashudi 
Published: March 2023

Remote sensing data and USLE models have been used widely for erosion analysis. In Indonesia, the USLE model is a reference in erosion analysis to assess land suitability for agricultural crop development. Erosion analysis using remote sensing data provides various advantages, including good accuracy, lower costs, and can analyze erosion rates quickly compared to direct measurement methods. The aim of this study was to analyze the potential erosion in the Arui watershed - Manokwari Regency – West Papua Province using remote sensing data and USLE models. The research was conducted from April to July 2022, with three main stages i.e data inventory, data analysis, and erosion rate estimation. The research shows that the potential erosion rate in the Arui watershed is 15 tons/ha/year or 3.480 tons/year, thus exceeding the tolerable soil loss (TSL) erosion rate threshold of 9.6 tons/ha/year. Therefore, a conservation and restoration program is needed to control the erosion rate in the Arui watershed. Keywords: Erosion rate, Remote sensing, Tolerable soil loss, USLE, Watershed