bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of methanol use in the engine on the workflow
Authors: Anfilatov A A , Chuvashev A N 
Published: May 2020

AbstractIn the Vyatka GSHA for a number of years, research has been conducted on the conversion of internal combustion engines to work on methanol. The purpose of our research is to improve the efficiency and environmental friendliness of the 2CH 10.5/12.0 diesel engine when working on methanol using a dual-fuel feed system (DST) and the use of a multi-jet nozzle for feeding a portion of diesel fuel (DT) by improving the mixing, combustion and heat generation processes. The implementation of a method for using methanol by feeding it directly into the combustion chamber and igniting it from the igniting part of the DT provided for the installation of two fuel systems, including two high-pressure fuel pumps of type 2UTNM and two injectors for each cylinder. At the same time, an additional hole was drilled in the head, located in the same vertical plane as the standard nozzle, to install the nozzle that feeds the DT.
Risk-based approach for industrial environmental control during the construction of the main gas pipeline
Authors: Glebova E V , Artanova M V , Ivanova M V , Korobov A V 
Published: May 2020

Abstract
Based on the analysis of acts of industrial environmental control and the content of the Register of Environmental Violations of the General Contractor, the distribution of categories of documentary and natural violations by frequency of occurrence was revealed. Based on the analysis of the legislation of the Russian Federation, the severity of potential environmental consequences, translated into point values, is determined. On the results of the established parameters, the final score is calculated. It is proposed to supplement the Company Register with this parameter.
The formation of soot on the walls of the diesel combustion chamber and its effect on heat transfer in the cylinder
Authors: Devetyarov R R 
Published: May 2020

Abstract
The presence of soot particles in the volume of the combustion chamber significantly increases the radiation of the flame and leads to an increase in local temperatures in the volume of the KS. Therefore, the presence of soot particles has a strong effect on the dynamics of heat generation in a diesel cylinder, especially at high load conditions. And an understanding of the mechanisms of its formation allows you to choose a way to reduce the soot content in the exhaust gas.
Numbrigal simulation of a thermodynamic process to decompose gas hydrate in a gas production well using, radiofrequency electromagnetic radiation
Authors: Fatykhov M A , Akchurina V A , Stolpovsky M V 
Published: May 2020

Abstract
The formation of gas hydrate deposits on the inner surface of gas production equipment is a frequently occurring type of complication in gas production, leading to a significant decrease in the useful section of pipes and gas pipelines. The intensity of their formation can lead to a complete overlap of the lifting pipes and annular channels in the annulus in certain areas, which necessitates repair work to clean the wells of gas hydrates. Based on the analysis of methods for cleaning wells from gas hydrate deposits, it was revealed that in some cases one of the effective methods of preventing their formation and combating them is to use the energy of high-frequency and superhigh frequency electromagnetic fields. The article explores the processes of heating and decomposition of gas hydrate deposits in the wellbore. About 30% of the thermal energy released in the wellbore interacting with the electromagnetic field is consumed to heat the medium surrounding the well. The need for timely removal of the gas-water mixture formed in the annulus for the decomposition of gas hydrate along the entire length of the well is established.
Effect of electromagnetic field on water-in-oil emulsion and calcium carbonate crystallization
Authors: Alimbekova S R , Dokichev V A 
Published: May 2020

Abstract
The investigation was devoted to the effect of electromagnetic field on crystallization of calcium carbonate, structure of CaCO3 crystals generated from oversaturated aqueous solutions, and water-in-oil emulsion (crude oil) properties. XRD demonstrated that electromagnetic field caused a decrease in mean size of CaCO3 particles by 30 μm and prevalent aragonite formation. We detected that electromagnetic field application leads to decreased apparent viscosity of water-in-oil emulsion and inhibits influence of a non-ionogenic surfactant on stability and viscosity properties of crude oil. As a matter of practice, the method demonstrated its efficiency to prevent scale deposits in oil production wells.
Increasing the uniformity of distribution of the oscillations of the disc ultrasound radiators for gas media
Authors: Khmelev V N , Nesterov V A , Shalunov A V 
Published: May 2020

Abstract
The article is dedicated to the research of the influence made by secondary modes of oscillations on the uniformity of distribution of the oscillations produced by the ultrasound disk radiators. The article considers the reasons for emergence of the secondary oscillation modes and the ways of mitigating the influence of the secondary modes on the final distribution of the oscillations of the ultrasound disc radiator. It is pointed out that the difference between the working mode frequency and the secondary flexural mode should be 500 Hz or above, and the minimum difference between the working mode and the secondary radial mode frequencies should be 2 kHz. The article also presents the results of the studies of the disc radiators with anisotropic mechanical properties. It suggests a method for modernization of the disc radiators featuring anisotropic mechanical properties in various ways.
Influence of main chain transmitters and cross-growth reaction on characteristics of SDRC rubber
Authors: Bronskaya V V , Aminova G A , Manuyko G V , Ignashina T V , Bashkirov D V , Kharitonova O S , Balzamov D S 
Published: May 2020

Abstract
The study and modeling of the SDRC rubber synthesis process under the conditions of chain transmission and cross reactions are carried out. The influence of the main chain transmitters and the cross reaction on the characteristics of the resulting product is studied.
The mutual influence of electromagnetic and mechanical processes in dynamic modes of inertial vibrating electric drives
Authors: Mirsadov M M , Fayzullayev B KH , Abdullabekov I A , Kupriyanova A S , Kurbanbayeva D I , Boqijonov U A 
Published: May 2020

Abstract
To conduct studies on the mutual influence of electromagnetic and mechanical transient processes of starting inertial vibration drives with an asynchronous motor (IVD-AD), a mathematical model is developed in this work. For this, the analytical dependence of the dynamic mechanical characteristics of the vibrator is determined for various values of the acceleration of the rotor, significantly different from the standard moments of resistance. In the mathematical model, the dynamic mechanical characteristic of an induction motor is used as a torque. Studies on a mathematical model showed that one of the disturbing effects on the dynamic mode of the IVD-AD is a change in the load parameters during operation, another disturbance is a change in the acceleration of the rotor, which leads to a shift in the resonance curves, which must be taken into account when choosing methods and means of tuning control in resonance.
Investigation of corona-resistant coatings for the dielectric surface in a plasma-chemical ozone generator on the base of dielectric barrier discharge
Authors: Andreev V V , Kravchenko G A , Pichugin Yu P 
Published: May 2020

Abstract
The results of the study on the development of corona-resistant coatings for dielectric barriers in plasma-chemical ozone generators on the base of dielectric barrier discharge are presented. The influence of the binder and filler material on the service life of the dielectric barrier is studied. The best corona resistance result was achieved using an organosilicon binder. Inorganic fillers are effective for increasing the corona resistance of the coating: Al2O3 powders, talc and others. The studies were performed in air at atmospheric pressure.
Mathematical model of evaporator-condenser
Authors: Chernenko V V , Chernenko D V 
Published: May 2020

Abstract
The basic provisions of the mathematical model of a condenser-evaporator in relation to air separation units are considered. All influencing quantities are shown, the main component blocks are highlighted, and the sequence of their solution is given. The model is based on a joint solution of the equations of hydrodynamics and heat transfer for tubular apparatuses using iterative calculations to clarify the initial values of the determining parameters both within individual blocks and between blocks. Application of the model is possible for both design and verification calculations with minimal changes. The development of the considered model is associated with the adaptation of its algorithm to machine calculation. One of the main directions is the inclusion of a database of parameters of working substances in the field of vapor-liquid states with the ability to automatically search and transfer the required thermophysical parameters on the evaporation and condensation lines in the model.
Study of TGM-94 boiler with variable feed water temperature using a calculation model
Authors: Shaposhnikov V V , Dyakonov E M , Mihalko Ya O , Batko D N 
Published: May 2020

Abstract
The article substantiates the need to test performance capability and effectiveness of a steam boiler in the new conditions under any changes in the regenerative heating circuit of the feed water in a steam turbine plant. Such changes may include: the displacement of steam extractions onto high pressure feed water heaters by the sun, by heat from biomass or garbage burning, or by steam from third-party sources. For this purpose we have developed a mathematical model of the steam boiler TGM-94 from steam turbine installation K-150-130. The model was created with Boiler Designer program. Verification of the calculated and experimental data provided by Krasnodar TTP showed sufficient convergence in both the steam-water and gas paths. We observed differences in the following temperatures: feed water temperature after the first stage of the economizer, flue gases and air temperature at the inlet to the furnace. The maximum difference between calculation and experiment here is 6 °C. We studied the boiler operation at a variable load, but with a constant temperature of the feed water equal to the nominal value of 230 °C. It was shown that in order to work in this mode, and in order to maintain the superheat temperature of the primary and secondary steam, it is necessary to turn on the flue gas recirculation smoke exhausters. We studied the operation of the boiler at a reduced feed water temperature. It turned out that such work leads to a decrease in steam production, if we keep the fuel consumption unchanged. In the case of sustaining steam production, it is required to assess the temperature state of the heating surfaces additionally due to a significant increase in the superheat temperature of both the primary and secondary steam.
Heat and mass transfer in unit of cooling tower filler with advanced gas-liquid contact surface
Authors: Dmitriev A V , Madyshev I N , Khafizova A I , Kharkov V V , Vakhitov M R 
Published: May 2020

Abstract
On a global scale, many cooling towers and contact elements occur in a variety of types. In this paper, a new design of the tower with the technology of contactless evaporation cooling has been presented. Experimental studies of the efficiency of heat and mass transfer processes in the inclined-corrugated element with the advanced gas-liquid contact surface as metal mesh were performed. Results of the change in the efficiency of heat and mass transfer processes from various gas velocity and the ratio of mass flow ratio of liquid and gas phases were reported. Comparative analysis of the influence of specific surface of phase contact on the efficiency of cooling circulating water was carried out. It was found that the use of additional contact surface of the phases allows increasing the efficiency of thermal and mass transfer on average of 44.8% and 54.2%, respectively. The mean-flow air velocity without entrainment of liquid from the apparatus reaches 2.7 m/s.
Nitride solar cells - improving efficiency based on simulation
Authors: Rabinovich O , Podgornaya S 
Published: May 2020

Abstract
Solar cells model based on GaN/Si heterostructure was made. The optimum heterostructure design and doping profile were defined. Quite high solar cell efficiencies based on n-GaN−p-Si heterostructures such as 14.35 % at 1 · AM 1.5 and 21.10 % at 1000 · AM 1.5 were achieved.
Chemical resistance of a surface of an offset cylinder of printing equipment
Authors: Yamilinets S Yu , Zhuravleva G N , Kondratov A P 
Published: May 2020

Abstract
The mechanical properties and chemical stability of the rubber-fabric coating of the printing cylinder of offset printing equipment were studied according to the parameters: compression and recovery rates during cyclic deformation of the material in the printing contact strip before and after swelling in printing ink solvents and technological solutions.
In-situ observation of nucleation and property evolution in films grown with an atmospheric pressure spatial atomic layer deposition system
Authors: Mistry Kissan , Jones Alexander , Kao Manfred , Yeow Travis Wen-Kai , Yavuz Mustafa , Musselman Kevin P 
Published: May 2020

Abstract
Atmospheric pressure—spatial atomic layer deposition (AP-SALD) is a promising open-air deposition technique for high-throughput manufacturing of nanoscale films, yet the nucleation and property evolution in these films has not been studied in detail. In this work, in situ reflectance spectroscopy was implemented in an AP-SALD system to measure the properties of Zinc oxide (ZnO) and Aluminum oxide (Al2O3) films during their deposition. For the first time, this revealed a substrate nucleation period for this technique, where the length of the nucleation time was sensitive to the deposition parameters. The in situ characterization of thickness showed that varying the deposition parameters can achieve a wide range of growth rates (0.1–3 nm/cycle), and the evolution of optical properties throughout film growth was observed. For ZnO, the initial bandgap increased when deposited at lower temperatures and subsequently decreased as the film thickness increased. Similarly, for Al2O3 the refractive index was lower for films deposited at a lower temperature and subsequently increased as the film thickness increased. Notably, where other implementations of reflectance spectroscopy require previous knowledge of the film’s optical properties to fit the spectra to optical dispersion models, the approach developed here utilizes a large range of initial guesses that are inputted into a Levenberg-Marquardt fitting algorithm in parallel to accurately determine both the film thickness and complex refractive index.
Investigating multiple sources of data for smart infusion pump and electronic health record interoperability
Authors: Marwitz Kathryn K , Fritschle Andrew C , Trivedi Vivek , Covert Matthew L , Walroth Todd A , DeLaurentis Poching , Saunders Taren , Walleser Nathan , Fuller James , Degnan Dan 
Published: May 2020

Abstract

Purpose
Infusion pump data, which describe compliance to dose-error reduction software among other metrics, are retrievable from infusion pump vendor software, electronic health record (EHR) systems, and regional and national data repositories such as the Regenstrief National Center for Medical Device Informatics (REMEDI). Smart infusion pump and EHR interoperability has added to the granularity and complexity of data collected, and clinicians are challenged with efficiently comprehending and interpreting the data and reports available.

Summary
Collaborative partnerships between the Indianapolis Coalition for Patient Safety and the Regenstrief Center for Healthcare Engineering allowed for clinicians, informaticists, researchers, and engineers to compare the information gained and strengths of using smart infusion pumps, EHR, and REMEDI to assess hospital medication safety in a setting of interoperability. Seven reporting capabilities were used to compare available reports, and 2 hypothetical scenarios were developed to highlight these processes. Infusion pump vendor–provided software and reports were found to provide the most usable information for detailed infusion reporting, while the EHR was strongly usable for interoperability compliance and REMEDI excelled in benchmarking capabilities.

Conclusion
While infusion analytics needs may differ across health systems, a better understanding of the strengths of infusion pump data and EHR data may help provide structure and direction in the infusion analytics process. Infusion data repositories such as REMEDI are useful tools to obtain information in a way not delivered by smart pump data.
Carbonation dysgeusia associated with topiramate
Authors: Charbonneau Maria , Doyle-Campbell Courtney , Laskey Corey , Capoccia Kam 
Published: May 2020

AbstractPurposeA case of carbonation dysgeusia associated with the use of topiramate is reported in order to bring awareness to a lesser-known adverse effect of the medication so that providers may be able to more effectively counsel patients and provide potential solutions.SummaryA 39-year-old Caucasian woman with longstanding epilepsy was initiated on topiramate therapy after experiencing a generalized seizure (she reported not taking any antiepileptic medication for years). Topiramate was started at a dosage of 25 mg by mouth twice daily and after 3 weeks titrated to a dosage of 100 mg by mouth twice daily for maintenance therapy. After initiation of topiramate therapy, the patient began to experience an immediate change in her carbonation perception when drinking carbonated beverages; all carbonated beverages, including seltzer and beer, tasted “flat.” The patient remained on topiramate for the subsequent 12 months without her carbonation perception returning to normal but noted that drinking carbonated beverages through straws slightly mitigated the adverse effect. Case assessment using the adverse drug reaction probability scale of Naranjo et al indicated that topiramate was the probable cause of the patient’s carbonation taste perversion.ConclusionA 39-year-old Caucasian woman developed chronic carbonation dysgeusia after initiation of topiramate following a generalized seizure.
Comparing the Prognosis of Patient with Alcohol and Nonalcohol-Associated Cirrhosis with Bacteremia
Authors: Huang Hsu-Kai , Chen Hung-Yu , Hsu Yin-Chou 
Published: May 2020

Abstract

Aims
Patients with liver cirrhosis are more susceptible to bacteremia and more likely to have a poor prognosis in comparison to healthy individuals. Studies on the role of alcohol in cirrhotic patients with bacteremia are limited. Our study aimed to investigate the clinical characteristics and prognostic differences between the patients with alcohol and non-alcohol-associated cirrhosis with bacteremia.

Methods
A single-center, retrospective cohort study was conducted among adult patients who presented to the emergency department from January 2015 to December 2018. All patients diagnosed with liver cirrhosis and bacteremia were enrolled and divided into alcohol-associated and non-alcohol-associated groups according to the etiology of their cirrhosis. We compared their clinical characteristics, laboratory results, microbiological data, and infection source as well as outcome measurements between the two groups.

Results
A total of 112 cirrhotic patients with bacteremia (alcohol-associated: 67; non-alcohol-associated: 45) were eligible for this study. In comparison with the non-alcohol-associated group, patients in the alcohol-associated group had a significantly higher rate of intensive care unit transfer (41.8% vs. 22.2%, P = 0.04), septic shock occurrence (56.7% vs. 35.6%, P = 0.04) and 30-day mortality risk (37.3% vs. 15.6%, P = 0.02). Moreover, alcohol-associated cirrhosis and Model for End-Stage Liver Disease score were independent predictors of 30-day mortality in cirrhotic patients with bacteremia.

Conclusions
The etiology of liver cirrhosis influences the outcomes of patients with bacteremia as well as the severity of their cirrhosis.
Identifying Regional Viscoelastic Properties of the Superficial Muscular Aponeurotic System
Authors: Lukavsky Robert , Trussler Andrew , Barton Fritz E , Lee Michael 
Published: May 2020

Abstract

Background
Suspension of the superficial muscular aponeurotic system (SMAS) is generally believed to be necessary in facelift surgery. Although many techniques have been suggested, all rely on the viscoelastic properties of the SMAS

Objectives
The aim of this study was to determine the viscoelastic properties of bursting strength, stress relaxation, and creep in the lateral, mid-cheek, and medial regions of the SMAS.

Methods
The viscoelastic properties of the SMAS were determined in 12 cadaveric hemifaces. Lateral SMAS was classified as the SMAS overlying the parotid gland; mid-cheek SMAS as anterior to the parotid and overlying the masseter muscle; and medial SMAS as including tissue extending medial from the lateral canthus and ending at the nasolabial fold.

Results
The 3 SMAS regions showed significantly different bursting strengths: 38.9 N for the lateral SMAS, 26.7 N for the mid-cheek SMAS, and 11.9 N for the medial SMAS (P &lt; 0.0001). Stress relaxation was similar in all vertical regions with measurements of 54% in the lateral, 48% in the mid-cheek, and 59% in the medial SMAS. Creep was found to be similar in the lateral and mid-cheek SMAS with values of 18% and 19%, respectively. The medial SMAS was noted to have a higher creep at 22%.

Conclusions
The lateral SMAS has a stronger bursting strength than the mid-cheek and medial SMAS. Creep appears to be lower in the lateral and mid-cheek SMAS. Stress relaxation appears to be similar in all 3 vertical regions.