bluuebunny/crossref_metadata_2025_split huggingface dataset:
Floral finds in the city of Abakan (Republic of Khakassia, Russian Federation)
Authors: Antipova E M , Chebotareva O P 
Published: August 2019

Abstract
Abakan is a city district, the capital of a constituent entity of the Russian Federation of the Republic of Khakassia, with a population of 171.2 thousand people. On botanical and geographical zoning of L M Cherepnin Abakan is located in the Priabakanskaya valley steppe (S1) in the central part of the Khakass-Minusinsk depression at a height of 250 m above the sea level at the mouth of the Abakan river. Despite the fact that the territory of the Republic of Khakassia is studied well from the botanical point of view, there is not enough information about the current state, structure and species composition of the flora of the city of Abakan, which constituted the basis for in-depth studies of its vegetation cover. The aim of the work was to identify new and rare plant species in the flora of the city of Abakan. Floristic collections in the city were carried out from 2016 to 2018 by the method of model section of the urbanized landscape. As a result of the expeditionary research of 11 model sections, new plant species for the Republic of Khakassia (Centaurea ruthenica, Galium coriaceum, Myosotis sparsiflora, Oxytropis candicans, Peucedanum morisonii, Sagittaria trifolia, Silene turgida) and the city of Abakan were found and identified for the first time in the administrative boundaries of Abakan (Aquilegia grandulosa, Batrachium peltatum, Potamogeton crispus, Scirpus radicans, Viola canina). Habitats and model sections with the coordinates of the collection are specified, the boundaries of the ranges of species in the regions are marked.
Influence of the ratio of ingredients in the processed substrata on adaptation of the Eisenia Foetida (Sav.) worms to them
Authors: Okhotnikov S I , Kabanova T V , Dolgorukova M V 
Published: August 2019

Abstract
Recently in Russia and in the near and far abroad the vermikomposting of organic wastes has been widely adopted. In a vermiculturing the species of worms specializing in eating of vegetable oddments and excrement of mammals are used, it is Eisenia foetida (Savigni, 1826) and its subspecies E.f. foetida, E. Fandrei, and also an ordinary earthworm which is Lumbricus terrestris, the small red worm L. rubellus and types of Dendrobaena subrubicunda and D. Veneta. Many researchers consider that the vermicomposting promotes a solution of the problem of utilization of large numbers of household garbage, rainfall of sewage, wastes of the food industry, the cellulose-paper and woodworking, tanning, hydrolyzing industries, and branches of agriculture. The technology of a vermiproducting supposes the preparation of substrata. Such receptions as humidification of wastes; their aeration, neutralization; crushing and homogenization, use of various excipients in substrata (straw, rotten hay, opit, peat, some quantity of the mineral soil) reduce terms of preparation of substrata for a vermiculture. Our researches were devoted to definition of an optimum ratio of ingredients in the substrata prepared for a vermiculturing on the basis of a bird’s dung for successful adaptation of Eisenia foetida (Sav.) to them.
Weediness of crops in various crop rotations
Authors: Zamyatin S A , Efimova A Y , Maksutkin S A , Apaeva N N 
Published: August 2019

Abstract
Weediness of crops of field crops is examined in various crop rotations. Different types of weeds have unequal effects on crop plants. An expression of this effect is the harmfulness of weeds, which leads to a decrease in yield and a deterioration in the quality of the products. It is possible to change the species composition of weeds in the course of time on agricultural crops, which depends on the intensity of the cultivation technology and, first of all, on the alternation of crops and the introduction of straw. Monitoring of weed infestation of crops is necessary to predict the spread of the most harmful weeds in crop rotations. The aim of the research is to trace the dynamics of weediness and species composition of weeds on sodpodzolic soil in field crop rotations. The research was carried out in 1998-2017 on a stationary site, on sod-podzolic medium loamy soil with a high content of mobile forms of phosphorus and exchangeable potassium. The biomorphological spectrum of weed species indicates that 26 species of juvenile weeds occur, and 9 species of perennial species. The appearance of Chenopodium album L. was the most common. There is an increase in the abundance of weeds during the research in the studied agrocenoses. If 61 specimens of weed vegetation per 1 m2 were observed in the first rotation, including 50 annual ones, then in the second rotation the abundance of weeds increased to 67 pieces / m2. The greatest amount of weed vegetation was observed - 76 pieces/m2 in the third rotation of crop rotations. We come to the conclusion that the weediness of field agrocenoses increases, examining the dynamics of the contamination of crop field crop rotations, especially over the last six years of research. The number of species of Fumaria officinalis L. and Stellaria media (L.) Vill increases during the study. The number of species of Chenopodium album L. and Echinochloa crus-galli L. has increased significantly over the past six years. We found that the crops in the first crop rotation were the most littered. The rotation, including grasses and row crops, helps to cleanse crops of other crops from weeds. The quantity of weeds in crops of field crops increases with cultivation of crops by organic technology.
The state and problems of increasing milk production in Russian Federation
Authors: Kuznetsova A R , Avzalov R H , Avzalov M R , Gusmanov R U , Askarov A A 
Published: August 2019

Abstract
Milk production in the implementation of a competent management approach is a profitable agricultural business. To improve management decision making, regular monitoring of the situation on the milk market is needed. Our analysis showed that, despite the reduction in the number of dairy cows in all forms of management and despite the decline in milk production, in the period from 1990 to 2016 in the agricultural organizations of the country, the productivity of dairy cows increased by two folds. Secondly, the cost of producing one center of milk decreased four-fold, which indicates the processes, innovations, mechanization and automation of production are in place and working well. Thirdly, labor costs per cow, in man-hours decreased by 2.5 times. Fourthly, it is positive that the loss of milk decreased by half. Fifthly, the export of milk, which includes exports both to non-CIS countries and the CIS, has increased by 93%. In order to identify the factors that affect the productivity of dairy cows, we performed a special correlation regression analysis. Our analysis allows us to conclude that the most significant factors affecting the productivity of dairy cows are: (1) the cost per year for the maintenance of one cow, in thousands of rubles; (2) labor costs for the production of one center of milk, man-hours; (3) the number of livestock per 100 hectares of agricultural land, heads; (4) the mass of one calf at birth, in kilograms; (5) the load per operator of machine milking, heads; (5) average monthly salary of a machine milking operator, rubles. The state regulation of dairy cattle breeding should be carried out on the basis of competent economic mechanisms, it presupposes rationalization of the structure of agricultural production, inter-industry and inter-farm relations, the creation of stable economic, legal and social conditions for the development of agriculture, taking into account the already achieved production results, available and potential resource base, especially availability of basic production assets.
Biotechnological potential of the straight-wing species Acheta domesticus as raw material for the production of feed for aquaculture
Authors: Talan M S , Lapin A A , Dokuchaeva I S 
Published: August 2019

Abstract
The article assesses the biotechnological potential of crickets of Acheta domesticus species for use as feed for aquaculture. The optimal diet was selected and the most favorable conditions for the reproduction of insects in a mini-farm were determined. Studied the qualitative composition of the substrate on the basis of the crickets of the species Acheta domesticus. With the aim of selecting the optimal technological modes of processing of raw materials on the basis of the insects investigated the total antioxidant activity of aqueous extracts of dried crickets of the species Acheta domesticus crustaceans of the genus Gammarus pulex. For crickets Acheta domesticus activity was 1.508 g routine per 100 g absolutely dry sample and 1.888 g routine for Gammarus pulex. It was found that the samples of Gammarus pulex have the property of thermal stability according to the criterion of total antioxidant activity during drying of dry samples to a constant weight at 105°C.
The efficiency of cyproconazole and fludioxonil for plant protection against the phytopathogenic fungus Botrytis cinerea
Authors: Baybakova E V , Nefed’eva E E , Belitskaya M N , Gribust I R , Zheltobriukhov V F 
Published: August 2019

Abstract
The effect of two active ingredients of fungicides on pure culture of Botrytis cinerea Pers was assessed. The analysis was carried out for 16 possible combinations of cyproconazole and fludioxanil, one of which was a control one. According to the results of measurements of the dry weight of mycelium in an accumulative culture, a diagram was constructed and two-factor analysis of variance was given. It has been established that the combined effect of these fungicides has a significant effect on the growth of mycelium. The following combinations had significant effect: fludioxonil at maximum concentration (0:10), 1 part of cyproconazole and 10 parts of fludioxonil (1:10), 5 parts of cyproconazole and parts of 10 fludioxonil (5:10), 10 parts of cyproconazole and 5 parts of fludioxonil (10:5), and the maximum concentrations of two substances (10:10).
The SCADA system using PLC and HMI to improve the effectiveness and efficiency of production processes
Authors: Setiawan A , Sugeng  , Koesoema K I , Bakhri S , Aditya J 
Published: August 2019

Abstract
One of the problems in the industry is waste. There are 7 wastes, namely excessive production, inventory, defect/damage, transfer/transportation, movement, waiting time and excessive processes are things that absorb and waste resources, expenses, and additional time but don’t provide any added value in the activity, and therefore this research is fundamental to create an effective and efficient production process. The purpose of this research is to find out how much effectiveness and efficiency can be achieved by a SCADA system using PLC and HMI on industrial machines. This research uses a comparative method between a conventional control system with a SCADA system using PLC and HMI to get cost and time savings results. The results obtained in this study are SCADA systems using PLC and HMI can reduce production from 1.1% to 0.3%, increase productivity 6, 1%, saving production time from 396 minutes to 352 minutes and reduce costs from 6, 71%. The conclusion obtained in this research SCADA system using PLC and HMI can improve the effectiveness and efficiency in the production process in industries.
Development of DC smart grid model for voltage stability disturbance
Authors: Maulana D W , Faizal Fery , Florena F F , Alfandi F , Panatarani C , Joni I M , Wibawa B M 
Published: August 2019

Abstract
DC smart grid and distributed generation have evolved rapidly as the integration of renewable energy. The robustness parameter of DC smart grid can be defined by the ability of the system to maintain stability under normal or perturbed conditions and provide fast restoration after faults. This research aims to design DC smart grid to simulate the voltage stability again disturbance. A model of DC smart grid was tested by key parameters in power station such as voltage stability. Voltage stability is the ability of power system to maintain steady voltage within permissible range at all buses in reasonable condition and after having been subjected a perturbation, such as an incremental change in load. The obtained duration time for a system to recovered voltage stability problem was approximately two seconds until three seconds. It was concluded that designed DC smart grid could simulate the voltage stability disturbance.
Online air velocity control, temperature and humidity monitoring system for clean room using Raspberry Pi
Authors: Sunardi A , Agus D , Aditya H , Susila W 
Published: August 2019

Abstract
The requirement of a clean room in the pharmaceutical industry is to maintain the airflow between 0.36-0.54 m/sec and record the temperature and humidity parameters. The laminar airflow machine is used to maintain the air velocity. The air velocity settings in laminar airflow machine are usually done manually by adjusting the speed control knop. In this study, we have designed a prototype of automatic air velocity control, temperature, and humidity monitoring system using Arduino nano and Raspberry Pi. The airflow control is done by the PID method. From the test results, the prototype has worked as expected. The accuracy of the measurement is ± 5% for air velocity, ± 2 °C for temperature and ± 5% for moisture. The system can control the air velocity between 0.36 m/s to 0.54 m/s. The measured parameters then send to the server and utilized for online monitoring the air velocity, temperature, and humidity in the clean room.
Hybrid Billing Parking System (HBPs) for service quality improving
Authors: Herlina N , Herianto  , Hiron N , Nursuwars Firmansyah M S , Mubarok H 
Published: August 2019

Abstract
This project provides a concept of computer-based Hybrid Billing Parking System Service that could work both online and/or offline. We propose Hybrid Billing Parking System (HBPs) in which this system could work and keep the data of billing parking transaction saved digitally. The main goal of this research is design a new concept of database and computer network which includes operational procedure, unique barcode for Hybrid Billing Parking System (HBPs). We have successfully created Hybrid Billing Parking System (HBPs) which has advantages on managing system, for evaluation and financial report and also continuing parking service system. The result of this reseach that the concept that has been designed has two benefit aspects. From energy perspective, HBPs consume less energy and from simplicity procedure perspective, HBPs can be designed into universal architecture of parking system, but the unique code of barcode of each customer will be different.
RFID for nurse activity monitoring in the hospital’s nurse call system with Internet of Thing (IoT) concept
Authors: Nursuwars F M S , Rahmatulloh A 
Published: August 2019

Abstract
The hospital nurse call system is a system found around a hospital bed that allows patients in health care to call nurses or other health care staff remotely about their need for assistance. When the button is pressed, the signal tells the staff at the nurse station via a voice signal, and usually the nurse or nurse assistant responds to the call. Today it has created many nurse call systems that are considered efficient both with the concept of wireless and cable. artificial equipment that has standard facilities and complete facilities. But this tool only emphasizes how patients call nurses, without thinking about how the quality of nursing services responds to each call. The purpose of this study is to develop an RFID-based nurse call system with the internet of things (IoT) concept. The system allowed nurses can respond to every call from the patient without the patient or family the patient comes to the nurse station, also the hospital executive can get a report on the quality of nursing services, in the form of reports on the number of calls, the time is taken by the nurse to respond to each call and report who the nurse responds to each patient’s call. Thus, the information can be evaluated how the quality of service in the hospital.
Enhanced biogas production by mesophilic and thermophilic anaerobic co-digestion of palm oil mill effluent with empty fruit bunches in expanded granular sludge bed reactor
Authors: Fitrah R , Ahmad A , Amri I 
Published: August 2019

Abstract
This study aimed to utilize Palm Oil Mill Effluent (POME) and preheated Empty Fruit Bunches (EFB) as a source for enhanced biogas production in Expanded Granular Sludge Bed (EGSB) Reactor. The reactor was operated continuously for 48 days with 2 days hydraulic retention time (HRT), POME: EFB mixing ratios of 1: 0; 0.10; 0.15; 0.20; temperature of 35 ± 2±C and 55 ± 2±C. The best improved was achieved from co-digestion of POME with EFB at a mesophilic temperature of 35 ± 2±C and mixing ratios of 1: 0.10, highest total biogas volume achieved was 7,400 ml (0.1359 – 0.1619 m3 CH4/kg COD removed), Volatile Fatty Acid (VFA)/Total Alkalinity (TA) ratios 0.1418 – 0.1582, and COD removal 61.97 – 78.87 %. The Methane content was 46.10 %. Under a Thermophilic temperature of 55 ± 2±C and mixing ratios of 1: 0, 10, the highest total biogas volume achieved was 1.350 ml (0.0859 – 0.1358 m3 CH4/kg COD removed) VFA/TA ratios increased to 0.4498 – 0.6685 with COD removal 61.97 – 74.65 %.
Comparison of shear bond strength of light-cured resin-modified glass ionomer and moist insensitive primer on contaminated enamel
Authors: Evangelina I A , Hambali T , Thahar B , Salim J 
Published: August 2019

Abstract
Despite rapid developments in adhesive technology, contamination of bonding surfaces remains a major problem. The aim of this study was to evaluate the influence of contamination on shear bond strength of two adhesive systems: resin-modified glass ionomer cement (Fuji Ortho LC; GC America Corp) and Moist Insensitive Primer (Transbond MIP, 3M Unitek) combination with Transbond XT (light-activated), under different enamel conditions. Metal brackets were bonded to the buccal surfaces of 42 human premolars. The total sample was divided into 6 groups (n = 7 teeth) and brackets were bonded with one of the 2 adhesives under 3 enamel surface conditions: (1) dry (2) saliva-contaminated (3) saliva and blood-contaminated. The shear bond strength was tested using Universal Strength Tester Autograph Shimadzu Corp. There was no significant difference in the shear bond strength between dry, saliva, and saliva-blood contamination bonded with MIP combined Transbond XT. There were significant differences in the shear bond strengths between dry and saliva -blood contaminated enamel bonded with Fuji Ortho LC. In conclusion, Fuji Ortho LC is not recommended for clinical bonding application under saliva-blood contaminated enamel conditions.
Column simulation of Fe, Ti, V heap leaching from titanomagnetite ore
Authors: Sachkov V I , Nefedov R A , Orlov V V 
Published: August 2019

Abstract
The results of the research of the process of metals extraction from titanomagnetite ore are presented. The experiments were conducted in PVC columns. The most efficient metal recovery is achieved at a hydrofluoric acid concentration of 4 mol/L and ammonium fluoride concentration of 0.42 mol/L. This represent approximately 10% for titanium, iron and vanadium. Selectivity on titanium during percolation of a solution with a hydrofluoric acid concentration of 1 mol/L and ammonium fluoride of 2.5 mol/L is observed.
Investigation of adsorption of water vapor on porous aluminium oxide material
Authors: Reshetnikov S , Kurzina I 
Published: August 2019

Abstract
This paper deals with theoretical investigation and experimental verification of adsorption dynamics (kinetics) of water vapor on aluminium oxide material. Influence of vapor flow rate and grain size of the adsorbent on adsorption dynamics was carried out on a laboratory equipment using McBain-Bakr quartz balance. The flow rate at which there is no influence of external diffusion limitations was determined. The material was characterized by the BET method and X-ray phase analysis (XRD). The theoretical effective diffusion coefficient was predicted from the known structure of the adsorbent. Mathematical modeling of the mass transfer rates are based on a quasi-homogeneous model was performed. A comparison between theory and experiments for the various grain size adsorbent samples allows to determinate of the effective diffusion coefficient Deff.
The Study of Donor-Acceptor Equilibria in Oil-Displacing Compositions Based on Acid Coordinating Solvents
Authors: Altunina L K , Kuvshinov V A , Stasieva L A , Kuvshinov I V 
Published: August 2019

Abstract
The acidity of donor-acceptor complexes of boric acid with glycerol and sorbitol has been studied in aqueous solutions using pH-metry and electrical conductivity methods. A theoretical model of donor-acceptor acid-base equilibria in boric acid – polyol – water systems has been created. The constants of polyol boric acids formation and ionization were determined. The constants of glycerol and sorbitol boric acids formation were 0.05 and 0.06 l2·mol−2, and those of glycerol and sorbitol boric acids ionization were 7.1·10−6 mol·l−1 and 3.2 · 10−3 mol·l−1, respectively. The systems studied were used to create new oil-displacing compositions for enhanced oil recovery.
Differential potentiometric precipitation titration of zinc(II) and copper(II) using carbon composite electrode
Authors: Poluboyarinova J A , Shumar S V 
Published: August 2019

Abstract
The article presents the results of investigation of potentiometric titration of the working solution containing Zn(II) and Cu(II) by sodium diethyldithiocarbamate (NaDEDC) using carbon composite electrode as the indicator electrode. The proposed method for the separate determination of copper ions (II) and zinc (II) under the joint presence was tested on data from titration model of binary mixtures and the real object. The titration curves were processed by the linearization method based on the transformation of a titration curve into the multiphase linear regression, whose parameters determine the equivalence point with high accuracy.
Technology of foam concrete production with ultradispersed quartz waste
Authors: Kuznetsova I N , Darulis M A , Kosach A F 
Published: August 2019

Abstract
The article presents a technology for producing foam concrete using activated quartz waste. The waste is an ultrafine filler in the cement stone that builds pore-forming walls and generates a structure with minimal pores (with a diameter down to 50 microns) and walls with similar cross-section. The average density of such foam concrete is 500 kg/m3 and the total porosity equals 69-76%. The specimens demonstrate increased strength and reduced thermal conductivity. The use of the ultrafine filler in foam concrete reduces cement consumption by 10%, increases the density of the cement stone by 4%, augments the strength of the foam concrete by 10% and reduces its thermal conductivity by 8%. The results of the tests approve increased operational, physical and mechanical properties of such foam concrete.
Ultrashort pulse decomposition in reflection symmetric meander line of four cascaded half-turns
Authors: Chernikova E B , Belousov A O , Gazizov T R 
Published: August 2019

Abstract
The paper considers the protection of critical electronic equipment from an ultrashort pulse (USP) by means of modal filtering technology. Decomposition of the USP in a reflection symmetric meander line consisting of four cascaded half-turns is investigated for the first time. Quasi-static simulation of two half-turn connection diagrams has been performed. The output of the circuits shows the presence of negative polarity pulses, as well as additional pulses with time delay values non-multiple of per-unit-length time delays. It has been revealed that these values are linear combinations (arithmetic means) of per-unit-length time delays of the line modes.