bluuebunny/crossref_metadata_2025_split huggingface dataset:
Seismic Edge Detection by Application of Cepstral Decomposition to Data Driven Modeled Geologic Channel Feature in Niger Delta.
Authors: M. Orji O. , A. Ugwu S. , N. Ofuyah W. 
Published: August 2020

Seismic edge detection algorithm unmasks blurred discontinuity in an image and its efficiency is dependent on the precession of the processing scheme adopted. Data-driven modeling is a ast machine learning scheme and a formal usually automatic version of the empirical approach in existence for long time and which can be used in many different contexts. Here, a desired algorithm that can identify masked connection and correlation from a set of observations is built and used.Geologic models of hydrocarbon reservoirs facilitate enhanced visualization, volumetric calculation, well planning and prediction of migration path for fluid. In order to obtain new insights and test the mappability of a geologic feature, spectral decomposition techniques i.e. Discrete Fourier Transform (DFT), etc and Cepstral decomposition techniques, i.e Complex Cepstral Transform (CCT), etc can be employed. Cepstral decomposition is a new approach that extends the widely used process of spectral decomposition which is rigorous when analyzing very subtle stratigraphic plays and fractured reservoirs. This paper presents the results of the application of DFT and CCT to a two dimensional, 50Hz low impedance Channel sand model, representing typical geologic environment around a prospective hydrocarbon zone largely trapped in various types of channel structures. While the DFT represents the frequency and phase spectra of a signal, assumes stationarity and highlights the average properties of its dominant portion, assuming analytical, the CCT represents the quefrency and saphe cepstra of a signal in quefrency domain. The transform filters the field data recorded in time domain, and recovers lost sub-seismic geologic information in quefrency domain by separating source and transmission path effects. Our algorithm is based on fast Fourier transform (FFT) techniques and the programming code was written within Matlab software. It was developed from first principles and outside oil industry’s interpretational platform using standard processing routines. The results of the algorithm, when implemented on both commercial and general platforms, were comparable. The cepstral properties of the channel model indicate that cepstral attributes can be utilized as powerful tool in exploration problems to enhance visualization of small scale anomalies and obtain reliable estimates of wavelet and stratigraphic parameters. The practical relevance of this investigation is illustrated by means of sample results of spectral and cepstral attribute plots and pseudo-sections of phase and saphe constructed from the model data. The cepstral attributes reveal more details in terms of quefrency required for clearer imaging and better interpretation of subtle edges/discontinuities, sand–shale interbedding, differences in lithology. These positively impact on production as they serve as basis for the interpretation of similar geologic situations in field data.
PEMBARUAN PENDIDIKAN ISLAM DI INDONESIA ABAD KE-19: Menelisik Serpihan Pemikiran Sayyid Usman
Authors: Harahap Radinal Mukhtar 
Published: August 2020

<strong>Abstrak:</strong> Artikel ini bertujuan untuk mengungkap gerakan pembaruan pendidikan Sayyid Usman dalam bidang pendidikan Islam. Berdasarkan metode analisis isi terhadap sumber-sumber yang ada, artikel ini mengajukan temuan bahwa ide pembaruan Sayyid Usman terdapat dalam kitabnya yang berjudul <em>Âdâb al-Insân</em>. Kitab<em> </em>ini<em> </em>memuat refleksi yang kuat tentang dasar kemampuan sikap adaptasi penulisnya yang untuk konteks saat itu berhadapan dengan pemerintah Kolonial Belanda yang diskriminatif terhadap pendidikan Islam. Sikap adaptasi yang ditunjukkan Sayyid Usman sesuai dengan teori komunikasi antar budaya yang terangkai dalam lima faktor: komunikasi personal, komunikasi internal satu budaya<em>, </em>komunikasi internal<em> </em>berbeda budaya, penerimaan budaya dan kecenderungan perilaku. Studi ini memperlihatkan bahwa bahwa pembaruan tidak terlepas dari kecakapan adaptasi dengan basis keilmuan yang kokoh. Hal itu juga semakin menguatkan pandangan bahwa pembaruan sangat erat dengan kekayaan tradisi intelektual sebagaimana telah ditampilkan oleh Sayyid Usman.<br /> <br /><strong>Kata Kunci: </strong>ulama, Nusantara, pendidikan, <em>Âdâb al-Insân</em>, Sayyid Usman <br /> <br /><strong>Abstract: The Renewal of Islamic Education in the 19<sup>th</sup> Century Indonesia: Exploring Sayyid Usman’s Thoughts. </strong>This article aims to uncover Sayyid Usman's educational reform movement in the field of Islamic education. Based on the method of content analysis of available sources, this article proposes that the idea of the renewal of Sayyid Usman is contained in his book entitled <em>Âdâb al-Insân</em>. This book contains a strong reflection on the basic ability of the adaptation attitude of the author who for the context at that time faced the Dutch Colonial government which was discriminatory against Islamic education. The attitude of adaptation shown by Sayyid Usman is in accordance with the theory of intercultural communication arranged in five factors: personal communication, internal communication of one culture, internal communication of different cultures, cultural acceptance and behavioral tendencies. This study shows that renewal is inseparable from adaptation skills with a solid scientific basis. It also reinforces the view that renewal is very closely linked to the wealth of intellectual traditions as shown by Sayyid Usman.<br /><strong> </strong><br /><strong>Keywords: </strong>ulama, Nusantara, Islamic education, <em>Âdâb al-Insân</em>, Sayyid Usman
PRINCIPLES OF FORMATION AND DESIGNING EQUIPMENT FOR FINISHING PARTS ON SCREW ROTOR BASIS
Authors: Sekisov Aleksandr , Serga Georgiy 
Published: August 2020

There are presented technologies and equipment based on screw rotors where technological and transportation operations are combined. The methods and ways for the speed performance comparative analysis of screw rotors are shown, for that there are carried out experimental investigations to determine a motion rate of parts with different weights from rotation frequency of screw rotors of 1-4 types.
The results are accumulated in alignment charts which allowed creating a procedure for an engineering calculation of screw rotors. The original designs of such operation units have Russian priority and they are presented in fifty one patents for invention of the Russian Federation. In the paper there are offered methods and ways for the comparative analysis of screw rotor speed performance, the procedure for the engineering calculation of screw rotors. There is presented a machine for finishing parts with replaceable screw rotors of 1-4 types. The productivity and reliability increase of operation in such equipment is achieved at the expense of uninterrupted supply, dosage and reliable delivery of abrasive grains and parts into the operation unit made in the form of a screw rotor, worked parts separation from abrasive grains and working wastes, damage decrease of parts worked and their marketable appearance improvement, and also labor conditions improvement for the staff. There are shown inventions developed by the authors and for which they obtained patents of the RF and the information of which may be useful at the creation of equipment for OZO parts based on screw rotors.
FRACTURE MECHANISM OF 09G2S LOW-ALLOY STEEL WELDED SAMPLE SUBJECTED TO HEAT TREATMENT AND EQUAL CHANNEL ANGULAR PRESSING DURING IMPACT BENDING
Authors: Ivanov Afanasiy , Aleksandrova Ekaterina 
Published: August 2020

The aim of the work: the investigation of a fracture mechanism in 09G2S low-alloy steel welded sample with K-shaped grooving on a thermal impact area (TIA) after equal channel angular pressing (ECAP) and tempering + ECAP.
There are carried out impact bending tests of 09G2S steel welded samples in which Menage incision is carried in the TIA. Micro-fractograms are presented and the analysis of a fracture mechanism in Menage samples of 09G2S steel with welded joints subjected to impact bending at the temperature of 233ºK is carried out. It is shown that the fracture of welded samples subjected to tempering and the ECAP in the TIA is ductile and characterized with the presence of a dimple micro-relief as well as basic metal fracture. In its turn, 09G2S welded steel strengthened by means of the ECAP as a result of impact bending at the temperature of 233ºK is fractured quasi-brittle in the TIA. At the same time there are observed facets of quasi-microchip, micro-cracks and micro-dimples. A mixed fracture is also characteristic expressed in the interchange of brittle and ductile areas.
ESTIMATE OF DESIGN ELEMENT STRENGTH IN LONG-RANGE RADIAL CONTROL OF WHEEL PAIRS OF TEP60 DIESEL LOCOMOTIVE
Authors: Slivinskiy Evgeniy 
Published: August 2020

The contact strength calculations of machinery on basic geometrical parameters of a diesel locomotive bogie developed with the use of current procedures are carried out. There is shown a possibility for its creation and testing under operation conditions.
A diesel locomotive jawless bogie is created at the level of invention which is recommended by scientific-research and manufacturing structures in the field of heavy mechanical engineering both in our country and abroad with the purpose of the further analysis and possible its introduction into practice.
There is presented a development of a new diesel locomotive undercarriage unknown in world practice and supplied with RUKP allowing increasing a diesel locomotive run up to standard values and decreasing costs for diesel locomotive industrial and depot repair works.
COMPOSITIONAL MODEL DEVELOPMENT OF DC DRIVE MOTOR RELIABILITY ESTIMATE FOR TRAM-CARS
Authors: Shischenko Elena , Alekseev Anton , Novikova Vera 
Published: August 2020

The investigation purpose is to develop a method for the assessment of reliability values of dc drive motors for tram cars the life of which approaches its completion which will allow correcting the maintenance and repair system in order to decrease the number of sudden failures and hence the number of unscheduled repair operations. According to the available rolling-stock (trams) repair statistics, a considerable part of unscheduled repair works is determined by failures of dc drive motors.
Reasoning from the investigation purpose one of the problems consists in the development of the simulator allowing the accurate definition of quantitative characteristics of reliability during the operation. The operation reliability of dc drive motors of tram-cars is affected considerably by the interaction of design structure elements and it raises a question of combined structural-functional patterns use during the formation of a compositional simulator for reliability estimate.
The results obtained show that the account of structural-functional ties of dc drive motors design elements in tram-cars during the simulator formation for reliability assessment allows obtaining more correct data for the definition of maintenance terms and repair works.
In such a way, the compositional model for reliability assessment of dc drive motors installed in tram-cars allows obtaining more exact dependences of their trouble-free operation probability that gives an opportunity to correct terms for scheduled-preventive repair, so that to decrease the number of sudden failures becoming more often, as it is seen in practice, at the approach of tram-car operation completion and decrease the number of unscheduled repair works.
The model offered for reliability assessment is urgent for the term correction of maintenance and repair works of tram-car dc drive motors the life of which comes to the completion and also for motors which run out of power.
ANALYSIS AND APPLICATION OF BIOMETRIC AUTHENTICATION METHODS IN AUTOMATED SYSTEM OF INDUSTRIAL ENTERPRISE RESOURCE PROTECTION
Authors: Kuznetsova Nataliya , Karlova Tatyana , Bekmeshov Aleksandr 
Published: August 2020

The work purpose consists in the efficiency increase of automated system operation for industrial enterprise resource protection at the expense of the optimization of authentication method application, in particular, biometric one.
To achieve the purpose it is necessary to solve the problem of efficient joint use of modern authentication methods, particularly, a static and dynamic biometric authentication.
But biometric methods are most expensive from the point of view of their realization. In this connection, within the limits of the paper there is carried out the analysis of modern methods of biological authentication from the point of view of a special order of introduction and joint use.
In the paper there is shown a classification of static and dynamic methods for biometric authentication, an example of method combination in the authentication module is presented, there are considered and analyzed the latest methods, in particular, those based on DNA investigations, thermograms of a face and hands (static), gestures (dynamic).
The work novelty consists in the presented diagram of authentication module operation.
As a conclusion it should be noted that modern authentication systems offer the application of a complex approach: use both biometric methods and other ones for authentication in modules, in particular, based on secret knowledge and material carrier possession. The approach mentioned will allow minimizing the errors of the first and the second kinds, increasing a general level of safety.
Profile character accentuations in personal and professional diagnostics of law enforcement officers
Authors: Noss I. N. , Bulygina V. G. , Lysenko N. E. 
Published: August 2020

Introduction. In order to improve the efficiency of the staff of state bodies, an urgent task is to optimize the methods of prehire evaluation of candidates. In the practice of professional diagnostics of personnel, character accentuations usually become contraindications to employment. However, there is scientific evidence that character accentuations can, on the contrary, contribute to positive personal development. The study adopted a scientific hypothesis that certain characterological features are necessary for the effective implementation of various types of professional activities.The aim of the study is to identify “profile character accentuations” in effective employees of various law enforcement agencies that have a positive impact on the performance of a particular professional activity.Materials and methods. The sample included 5,237 law enforcement officers from 24 regions of Russia. Among them, 1,653 effective employees were selected, which had character accentuations. The respondents belonged to different divisions according to the type of activity they perform: analytical and legal, communication and information, inspection and communication, transport and inspection, and expert and analytical activities. The MMPI method was used to identify accentuations (Berezin F.B., Miroshnikov M.P., Sokolova E.D., 2011).Results. It is established that the profile of character accentuations differs depending on the level of efficiency of the employee and his professional duties. The personal profile of effective employees performing analytical and legal activities is characterized by an increase in the scales of male or female traits, hypomania and social introversion (p<0.05). In the personal profile of effective employees who perform communication and information activities, the variables of hypochondria, hysteria, psychasthenia and introversion are significant (p<0.05). The personal profile of effective employees performing inspection and communication activities is characterized by a decrease in the scales of hypochondria, psychopathy, psychasthenia and schizoidy (p<0.05). The personal profile of effective employees performing transport inspection activities is characterized by a decrease in the scales of depression, psychasthenia and hypomania (p<0.05). The personal profile of effective employees engaged in expert and analytical activities is characterized by a decrease in the variables of hypochondria, psychopathy, psychasthenia, schizoidism, and introversion (p<0.05).Conclusions. The results of the study confirm that using the technology of forecasting professional performance based on the personal profile of the applicant, it is possible to optimize the professional activities of people, improve the quality of their self-realization and involvement.
Psychophysiological parameters of railway power dispatchers as working efficiency criteria
Authors: Serikov V. V. , Rubtsov M. Yu. 
Published: August 2020

Introduction. Determining the professional performance, endurance and stress resistance of power dispatchers who manage all power supply devices on the railway is one of the essential aspects of ensuring train safety.The aim of the study is to determine the criteria for professional performance, endurance and the probability of developing professional stress by analyzing the psychophysiological parameters of railway power dispatchers.Materials and methods. Psychophysiological studies were conducted to assess stress resistance; emotional stability; attention stability; attention switching; interference stability, attention distribution, and overall functional status in 63 energy dispatchers (40 men and 23 women; average age 40.6±10.68 years, experience 13.4±1.25 years).Results. Based on the degree of intellectual, sensory, emotional and regime loads, according to the degree of labor intensity, the labor activity of energy dispatchers can be classified as class 3.2. It is shown that these psychophysiological parameters are the most significant for professional activity and allow an adequate assessment of their performance and professional fitness. In the absence of a significant dependence of the parameters of attention distribution, attention stability, reflecting the characteristics of mental fatigue and stability, on the age, length of service and gender of energy dispatchers, some gender features were identified for other indicators. Women were found to have a slightly higher noise immunity compared to men, apparently due to the predominance of excitatory processes over inhibitory ones, with greater stability and balance of excitation and inhibition in the central nervous system in men. This was accompanied by less emotional and stress resistance of female energy dispatchers, which may be a criterion for earlier development of professional stress in women. Additionally, an express test to assess the functional state also showed deeper manifestations of professional stress in female energy dispatchers,which may affect the quality of their professional activities.Conclusions. The high adequacy and resolution of the applied set of methods for assessing the performance of dispatchers and early detection of manifestations of occupational stress is shown, and gender differences in the manifestations of the latter require further development of additional measures to prevent health disorders and increase the productivity of women energy dispatchers.
Working conditions and occupational pathology of Kola Polar miners
Authors: Syurin S. A. , Gorbanev S. A. 
Published: August 2020

Introduction. Despite the improvement of mining technologies and personal protective equipment for employees, working conditions in the mining industry create an increased risk of occupational diseases.The aim of the studyis to compare the working conditions and features of professional pathology of miners in the production of iron, apatite and copper — nickel ore in the Kola Polar region.Materials and methods. The data of social and hygienic monitoring on the section “Working conditions and occupational morbidity” of the population of the Murmansk region in 2007–2017 were studied.Results. It was found that in 2007–2017, there was no significant improvement in the working conditions of the studied groups of employees of mining enterprises. The structure of professional pathology of miners was still dominated by vibration disease (37.0%), radiculopathy (23.8%), mono-polyneuropathy (15.5%), sensorineural hearing loss (15.5%), and among the etiologically significant harmful industrial factors — the severity of labor (54.1%), general vibration (23.8%) and noise (13.1%). During the observation period, occupational morbidity in the mining of iron and copper-nickel ore decreased significantly, while in the mining of apatite ore it tended to increase. There is no causal relationship between changes in working conditions and the level of occupational morbidity of miners.Conclusions.It is necessary to improve the quality of hygienic and clinical research when conducting a special assessment of working conditions and periodic medical examinations to obtain an objective assessment of occupational health risks for miners in the Kola Polar region.
Assessment of the volume activity of α-radioactive wastes on surface and specific contamination by portable γ-spectrometry method
Authors: Korenkov I. P. , Ermakov A. I. , Mayzik A. B. , Laschenova T. N. , Klochkov V. N. , Bushmanov A. Yu. 
Published: August 2020

The aim of the study is to evaluate the volume activity of radioactive waste (RW) by surface and specific alpha contamination using portable gamma-spectrometry.Materials and methods. Methods of rapid assessment of the content of α-emitting radionuclides in solid waste of various morphologies using gamma-spectrometers based on germanium detectors are considered. Computational methods for determining the effectiveness of radionuclide registration are presented.Results. The possibility of using portable gamma-ray spectrometry to assess the surface and specific activity of various materials contaminated with α-emitters (232Th, 235U, 238U, 237Np, 239Pu, 240Pu and 241Am) is shown. The calculated values of the registration efficiency of low-energy gamma-emitters obtained by modeling the spatial-energy parameters of the detector are given.To simplify the solution of this problem, the calculation program used 20 standard templates of various geometries (rectangular, cylindrical, conical, spherical, etc.). The main sources of error in the survey of contaminated surfaces, largesized equipment and building structures were investigated.Conclusions. The possibilities of portable γ-spectrometry for estimating the volume of RW based on the surface density of contamination of materials with radionuclides of uranium and transuranic elements are investigated. When using γ-spectrometer with a high-purity germanium detector with a range of γ-quanta extended in the low-energy region, radionuclides such as 232Th, 235U,238U, 237Np, 241Am were determined by their own radiation or by the radiation of their daughter products.The “problem” element is plutonium, for rapid evaluation of which it is proposed, in accordance with the radionuclide vector methodology, to use 241Am, which accumulates during the β-decay of 241Pu.According to calculations, the most likely value of the activity ratio 239Pu/241Am for the object where the work was performed (scaling factor) varies in the range from 5.0 to 9.0.Based on the results of calculations and experimental studies, the parameters of the efficiency of registration of various α-emitting radionuclides by portable γ-spectrometers. It has been found that for germanium detectors with an absolute efficiency of registering a point source of 7÷15%, it is n×10–5÷n×10–4%.