bluuebunny/crossref_metadata_2025_split huggingface dataset:
ENERGY-SAVING ADAPTATION OF THE VIBRATION-IMPACT BUCKET OF THE MANIPULATOR TO THE VARIABLE CHARACTERISTICS OF THE WORKING ENVIRONMENT
Authors: Marchuk Liubov , Polishchuk Valentyna , Slidenko Victor 
Published: June 2023

The paper study of the vibrating bucket of the manipulator as an excavator or tunnelling shield, with energy-saving adaptation to the aspects of the working environment for use in the construction and mining industry. The use of buckets and vibro-impact devices with automated operation allows a reduction of energy consumption for the destruction of rocks and hard soils with adaptation to their properties. The article proposes an algorithm for optimal control of the vibro-impact bucket element - a vibro-impact device using restrictions on the cutting resistance force and impact energy. The range of functioning of the vibro-impact device is determined. The optimal area of switching on the device is established, depending on the variable aspects of the working environment.
The integral characteristic, such as the cutting resistance force of the soil, were used. It finds that this characteristic depends on the angle of rotation of the manipulator's bucket and the soil density's attribute by the number of impacts of the DorNDI impactor. The influence of thermodynamic parameters on the impact energy during the functioning of the vibration impact device in a real environment is observed by considering the polytope index of the gas compression process in the pneumatic accumulator.
The work establishes the critical level of the force of static cutting of soils by an excavator of the IV size group for Ukrainian production and the criterion for the transition of the cutting process from static to dynamic mode depending on the variable characteristics of the working environment. The energy characteristics of the adaptive vibration-impact bucket of the manipulator are given. Introducing the vibro-impact bucket into the industrial production of Ukraine is recommended.
STUDY OF THE ILLUMINATION AND DEVELOPMENT OF RECOMMENDATIONS FOR ITS IMPROVEMENT
Authors: Drubetskaya Tanya , Mitiaiev D. 
Published: June 2023

Goal. Investigate the existing methods of lighting rooms of various search purposes, make effective decisions on increasing the energy efficiency of electrical engineering systems of internal education through the implementation of automated education management systems and energy-efficient management algorithms, explain the principles of lighting construction using natural lighting and the application of modern technologies of familiar and modern lighting devices.
Task. Analysis of existing technical solutions to increase the energy efficiency of the internal lighting system and substantiation of their energy efficiency indicators.Synthesis of the internal lighting control system of the administrative building. Development of algorithms for energy-efficient control of the internal lighting system taking into account external factors.
The result of the study. The work is devoted to the analysis of lighting methods and devices used today, as well as the search for effective solutions to increase the energy efficiency of the electrical system of internal lighting due to the implementation of an automated lighting control system and energy-efficient control algorithms, an explanation of the principles of lighting construction using natural lighting and modern application technologies conventional and modern lighting devices, as well as methods of improving lighting efficiency using the latest technologies from existing lighting devices. The main attention is paid to the problems of the currently existing methods of artificial lighting of rooms in houses of various purposes, and to the solution of these problems with the most effective and real methods in practical use. This article may be useful for those interested in upgrading existing lighting or building a new lighting system with efficient use of electricity.
Conclusions and practical significance. In this work, an analysis of existing energy-efficient technical solutions in interior lighting systems was carried out, based on the results of which it can be concluded that it is appropriate to use LED lamps in the lighting system due to their excellent indicators of luminous flux, light output, long service life and affordable price. It was also a source of various energy-saving methods in lighting systems, which can be attributed to: the introduction of half-light, LED lights and fluorescent lamps, the installation of electronic start-up control devices, more efficient use of light output, the introduction of a system of automatic lighting regulation depending on external factors and maintaining efficiency. education system.
PROGRAM-TARGET APPROACH TO THE IMPLEMENTATION OF MANAGEMENT PROCESSES IN THE RENEWABLE ENERGY SYSTEM AT THE LEVEL OF THE REGION
Authors: Derzhak Nataliia , Morneva Maryna 
Published: June 2023

The characteristic features and peculiarities of the development of the regional Program, which is formed to solve the problems of the development of renewable energy and the energy complex of the Luhansk region, are considered. A program-targeted approach was studied, which makes it possible to ensure the concentration of financial, material and technical, other resources, as well as the coordination of the activities of local executive bodies and local self-government bodies, territorial bodies of ministries and other central bodies of executive power, enterprises, institutions and organizations for the development solving the most important problems in the event that the specified problems cannot be solved by them on their own.
The article presents the results of using the program-target management method in various regions of Ukraine, first of all, its features and advantages are shown: it makes it possible to carry out a full cycle of the management process - from setting the task to evaluating the result and effectiveness of budget expenditures.
The research results showed that the programs contain a transparent monitoring, evaluation, control and decision-making mechanism, which allows to improve the decision-making system regarding the development, analysis, implementation of programs and resource allocation. The advantages of the program-target method have determined it as an important tool of result-oriented management.
METHOD OF QUALIFICATION OF MODERNIZATION OF ACTIVE SAFETY SYSTEMS TO PREVENT HYDRODYNAMIC INSTABILITY
Authors: Skalozubov Vladimir , Kondratyuk Vadym , Pis'mennyi Eugene , Dorozh Olga , Ostapenko Ivan 
Published: June 2023

The main reason for the hydrodynamic instability in the start-up mode of the pumps of the high-pressure reactor makeup system is related to the inertial delay in the reaction of the pump head and rate to rapid changes in operating parameters (flow rates, pressure, etc.).The consequences of the hydrodynamic instability in the high-pressure reactor makeup system can be: violation of the conditions for compensating the flow of possible leaks; hydro- and thermal "shocks" and other negative effects in the operating and emergency modes of the reactor.The control armature does not prevent the conditions for the hydrodynamic instability in the transient mode of pump start-up.
An alternative approach to modernizing the high-pressure reactor makeup system with damping devices is proposed. Based on the performed modelling of the modernized system, the conditions and constructional and technical requirements for the prevention of the hydrodynamic instability in the transient modes of pump start-up were determined.
EVALUATION OF ENERGY CONSUMPTION OF DRILLING TOOLS WHEN DRILLING WELLS ON KARSTED ROCK BLOCKS
Authors: Zhukova N. , Kryuchkov A. , Zaichenko S. , Smoliar V. 
Published: June 2023

The article is devoted to the analysis of energy consumption in the process of drilling wells in karst rock blocks. The paper presents the results of experimental and analytical studies of the drilling process and energy consumption for the destruction of rock massifs with a complex structure characterized by the presence of karst cavities. The operation of the drilling machine during the drilling of the karst rock block was monitored. In the article, the use of the criterion of energy intensity of the well drilling process is proposed to assess the level of energy consumption by the drilling rig. On the basis of the conducted research, the dependence of the rotary power of the drilling machine on the productivity of drilling wells was established, and the dependence of the specific energy intensity of rock drilling on the drilling productivity was determined.
The results of the conducted analytical and experimental studies on the determination of the geological structures of well columns by the energy intensity of their drilling process allow the development of designs of well charges for effective and safe destruction of complex rock massifs.
MODERN TECHNOLOGIES FOR INCREASING THE ENERGY AND ENVIRONMENTAL EFFICIENCY OF ENERGY PRODUCTION
Authors: Varlamov G.B. , Mitchenko I. O. , Jianguo Jiang , Weijie Zhang , Zongyan Wu 
Published: June 2023

The problems of energy efficiency of energy production along with improving the environmental safety of enterprises are becoming increasingly relevant. One of the ways to solve these problems is the implemention of effective technologies, which include microflare incineration technology (MIT-technology) of gaseous fuels. The use of MIT- technology, in addition to a significant reduction in harmful emissions into the atmosphere, can simultaneously increase the energy efficiency of thermal power plants.
A significant positive effect can also be achieved by using contact energy exchange plants. A striking example of such a gas-steam plant “Aquarius” the operation of which exceeds the efficiency of gas turbine plants by 10-12% with a simultaneous significant decrease in the concentration of toxic nitrogen oxides NOx and carbon monoxide CO in flue gases.
FUZZY MODELING OF SWITCHING EQUIPMENT FOR TASKS OF ASSESSING THE RISK OF EMERGENCY SITUATIONS IN THE EPS IN CASE OF ELECTRICAL EQUIPMENT FAILURES
Authors: Bardyk Ye. , Bondarenko О. 
Published: June 2023

Today in the electric power industry of Ukraine the issue of assessing the risk of EPS operation due to failures of electrical equipment is particularly important. Failures are associated with significant level of aging and low replacement rates of electrical equipment, also with the possible simultaneous emergency decommissioning of several elements as a result of terrorist attacks.
Based on the analysis of the operating conditions of high-voltage switching equipment, standards and operational documentation method of diagnosing the technical condition of SF6 circuit breakers is proposed. This method is based on the use of fuzzy set theory.
To assess the risk of power outages in the EPS in case of electrical equipment failures, a linguistic model is proposed for determining the total residual life and the probability of failure of SF6 high-voltage circuit breakers of various types. Which is based on the aggregation of information on the technical condition of individual functional units.
An approach is proposed to take into account the importance of individual units of the circuit breaker in terms of the impact on the total residual life by weight coefficients determined due to failure statistics. The result of determining the total residual life is the ability to estimate the probability of failure on the observation time interval.
Tuning and adaptation of the developed linguistic model of the SF6 circuit breaker to real operating conditions is provided by adjusting the parameters of the membership functions of the terms of the input linguistic variables using weighting coefficients and fuzzy inference with weighted average truth.
The developed linguistic mathematical model for assessing the technical condition and probability of failure of SF6 circuit breakers can be used as a component of the complex of risk analysis programs in the EPS. And the formation of preventive actions to ensure the operational reliability of electrical equipment and regime reliability of the EPS in case of emergency equipment failures.
MENINGKATKAN HAFALAN AL-QUR’AN MENGGUNAKAN METODE TALAQQI
Authors: Gita silvia  , Syofnidah Ifrianti  , Hasan Sastra Negara  
Published: June 2023

Penelitian ini dilakukan disemester genap tahun ajaran 2022/2023 dikelas IV Apakah Penerapan Metode Talaqqi dapat Meningkatkan Hapalan al-Qur’an peserta didik di kelas IV SD IT Insan Taqwa Lampung Selatan SD IT Insan Taqwa Lampung Selatan. Subjek penelitian ini adalah peserta didik kelas IV SD IT Insan Taqwa Lampung Selatan yang berjumlah 20 peserta didik. Penelitian tindakan kelas ini dilaksanakan dalam dua siklus, yang terdiri dari empat tahapan utama yaitu : perencanaan, pelaksanaan, observasi, dan refleksi. Tujuan penelitian ini adalah untuk menerapkan metode talaqqi untuk meningkatkan hafalan al-Qur’an peserta didik dikelas IV SD IT Insan Taqwa Lampung Selatan. Alat pengumpulan data menggunakan observasi, wawancara, dokumentasi, dan tes. Berdasarkan hasil penelitian menunjukan bahwa hasil menghafal peserta didik pembelajaran tahfidz Qur’an mengalami peningkatan. Dari 20 peserta didik pada pra siklus atau sebelum dilaksanakan metode talaqqi dalam menghafal al-Qur’an yang didapat untuk peserta didik tuntas adalah 40% sedangkan yang tidak mencapai ketuntasan adalah 60%. Tetapi setelah dilaksanakan atau diterapkan metode talaqqi dalam menghafal al-Qur’an terdapat peningkatan pada siklus I persentase ketuntasan peserta didik adalah 70% dan peserta didik yang belum tuntas adalah 30%. Kemudian dilnjutkan dengan siklus II karena pada siklus I belum mencapai indikator keberhasilan dimana persentase hasil menghafal peserta didik mengalami peningkatan yaitu sebanyak 95% sedangkan peserta didik yang belum tuntas sebanyak 5%..
Kata Kunci: Hafalan Al’Qur’an, Metode Talaqqi
PENGARUH AKTIVITAS KEBERAGAMAAN TERHADAP IMPLEMENTASI MODERASI BERAGAMA BAGI SANTRI PONDOK PESANTREN UNIVERSITAS ISLAM INDONESIA
Authors: Muhammad Yazid Asshidqi  , Aulia Nur Hanifa  , Muhammad Miqdam Makfi  
Published: June 2023

Indonesia merupakan negara pluralistik yang memiliki berbagai macam keragaman, diantaranya keragaman suku, ras, bahasa, dan agama. Kondisi sosial antropologis penduduk Indonesia yang multi-etnik, multi-budaya, dan multi-agama tersebut berpotensi menimbulkan perpecahan. Perlu ada upaya bersama dalam rangka meningkatkan kesadaran untuk mewujudkan persatuan dan kesatuan. Konsep moderasi beragama berusaha mewujudkan kemaslahatan kehidupan beragama dan berbangsa melalui penanaman nilai-nilai moderat dan toleransi di lingkungan masyarakat Indonesia. Visi yang melandasi berdirinya PP UII adalah terwujudnya Pondok Pesantren Universitas Islam Indonesia yang rahmatan lil ‘alamin memiliki keunggulan, dan kompetensi keilmuan, keislaman, dan dakwah. Sedangkan misi PP UII adalah membina kader-kader umat yang memiliki keunggulan dan kompetensi di bidang pemikiran keagamaan, keilmuan, keterampilan, pengembangan riset dengan keunggulan kemantapan akidah, kedalaman spiritual, serta keluruhan akhlak. Metode penelitian yang digunakan dalam penelitian ini adalah kualitatif dengan pendekatan normatif sosiologis. Pengumpulan data diperoleh melalui wawancara kepada santri PP UII. Hasil dari penelitian ini menunjukan bahwa aktivitas keberagamaan di Pondok Pesantren UII mempengaruhi pembentukan karakter moderat para santri. Secara umum santri sudah memahami konsep moderasi beragama dan telah mengamalkannya dalam kehidupan bersosial.
Kata Kunci: Aktivitas Keberagamaan, Moderasi Beragama, Santri, Pondok Pesantren
EFFECTS OF A TRADITIONAL CHINESE MEDICINE BASED DESENSITIZING GEL ON DENTIN HYPERSENSITIVITY
Authors: Wang Hui , Zhao Xiao , Ji Ping 
Published: June 2023

Background and Objective: Bamboo salt, Calcined oyster, Drynaria fortunei, Indigo naturalis and Rehmannia glutinosa have been the main ingredients of many formulations in Chinese medicine for the treatment of toothache. This study evaluated the effect of a new desensitizing gel on dentin hypersensitivity (DH).
Materials and Methods: The desensitizing gel was prepared through a confirmed prescription of ingredients mentioned above and Poloxamer 407 (P407). The best concentration of P407 in prescription was screened according to the gelatin temperature of gel. Scanning electron microscopy (SEM) was used to evaluate the dentinal tubule occlusion of 32 human premolars under various treatments including the desensitizing gel. Randomized controlled clinical trials were conducted to evaluate the clinical effect of the desensitizing gel.
Results: The best concentration of P407 in prescription was 0.30g/ml. Scanning electron micrographs of the cross-sectional and longitudinal dentin surfaces revealed most of the dentinal tubules were occluded by sedimentation after desensitizing gel treatment, and significant difference existed compared to the control groups. Randomized clinical trials showed 173.72% and 270.07% mean relative improvements on tactile hypersensitivity at one-month and two-month follow-ups, and 54.11% and 90.91% mean relative reductions on air blast hypersensitivity at one-month and two-month follow-ups (p0.05).
Conclusions: Based on these findings, the desensitizing gel exhibits an obvious effect on dentinal tubule occlusion. Besides, data of the randomized clinical trials indicate a potential role for the desensitizing gel in managing DH.
THE EFFECTS OF AMINOETHOXYVINYLGLYCINE AND METHYL JASMONATE ON BIOACTIVE COMPOUNDS AND FRUIT QUALITY OF ‘NORTH WONDER’ SWEET CHERRY
Authors: Kucuker Emine , Ozturk Burhan 
Published: June 2023

Background: AVG is an organic ethylene inhibitor. AVG treatments retarded the ripening process, increased fruit sizes and delayed loss postharvest
fruit flesh firmness by inhibiting ethylene. MeJA is a natural plant growth regulator and plays a regulatory role in various reactions. Apart from its role in fruit ripening, cell activities like anthocyanin and carotenoid synthesis and inhibitive role in aromatic formation, chlorophyll and lycopene production.
Materials and Methods: The present study was conducted to determine the effects of pre-harvest aminoethoxyvinylglycine (AVG) and jasmonate (MeJA) treatments on bioactive compounds, mineral nutrients and other fruit quality characteristics of ‘North Wonder’ sweet variety in 2011. sprayed on experimental trees at 125 mg L-1
dose in two different periods i.e. 3 weeks and 2 weeks before anticipated harvest date. MeJA was applied 3 week before the anticipated harvest date at a dose of 2240 mg L-1
.Results: MeJA significantly increased fruit weight and geometric mean diameter. AVG significantly decreased fruit weight and flesh/stone significantly increased L*, chroma and hue angle values. Effects of both AVG and MeJA on flesh firmness were also found to be significant.
While soluble solids concentration and pH values significantly decreased with AVG treatment, titrate acidity significantly increased. Both and MeJA treatments significantly decreased total phenolics (TP), total antioxidant capacity (TAC) and total anthocyanin (TA). Effects on such decreases in TAC and TA were more efficient than MeJA. While the effects of both AVG and MeJA on iron content were significant,
effects of only MeJA on nitrogen and phosphor contents were found to be significant.
Conclusion: Growth regulators significantly decreased bioactive compounds. AVG was more effective in such decreases than MeJA.
SIMULTANEOUS DETERMINATION OF FLAVONOIDS AND TRITERPENOIDS IN CYCLOCARYA PALIURUS LEAVES USING HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY
Authors: Shang Xulan , Wu Zheng-Feng , Yin Zhi-Qi , Zhang Jian , Liu Zhi-Jun , Fang Sheng-Zuo 
Published: June 2023

Background: Cyclocarya paliurus is an endangered plant endemic to China. The leaves of C. paliurus have been used in drug formulations and as ingredients in functional foods in China. The aim of this study was to develop an effective method to extract most of compounds and to extablish a simplified HPLC analytical method to determine the contents of major bioactive compounds simultaneously.
Materials and methods: High-performance liquid chromatography (HPLC) coupled with a photodiode array detector (PDA) was used for the simultaneous determination of the major flavonoids and triterpenoids in C. paliurus leaves.
Results: Ultrasonic extraction in 100% methanol for 30 min was adopted as the optimal extraction method for C. paliurus leaves. The separation conditions were optimized using a Phenomenex C18 ODS column (250 mm × 4.6 mm, 5 µm) with a mobile phase of acetonitrile and 0.02% formic acid and a detection wavelength of 205 nm. The validation data indicated that this new HPLC analytical method successfully quantified the provenance and seasonal variations of seven major compounds (three flavonoids and four triterpenoids) in C. paliurus leaves.
Conclusions: This study provides a novel and simplified approach to simultaneously determine the contents of major flavonoids and triterpenoids in C. paliurus leaves. Meanwhile, the results could promote the optimization of silvicultural systems for quality control of C. paliurus.
PHENOLIC CONSTITUENTS FROM SARCOPYRAMIS NEPALENSIS AND THEIR Α-GLUCOSIDASE INHIBITORY ACTIVITY
Authors: Tan Chao , Zuo Jiangcheng , Yi Xiaofang , Wang Peng , Luo Chunhua , Hu Yong , Yi Hong , Qiao Wei 
Published: June 2023

Background: This study was carried out to fully investigate the phenolic chemical constituents of Sarcopyramis nepalensis and determine their α-glucosidase inhibitory activity.
Materials and Methods: S. nepalensis was extracted using the ultrasonic assistant extraction (UAE) method and further fractionated with petroleum ether (PE), chloroform (CHCl3), ethyl acetate (EtOAc) and n-butanol (n-BuOH), respectively. The active fraction was chromatographed on AB-8 macroporous resin column, silica gel column, Sephadex LH-20 column, RP-ODS column and semi-preparative HPLC column. The isolated phenolic constituents were identified by 1H-Nuclear Magnetic Resonance (NMR), 13C-NMR and mass spectral (MS) analyses and detected their α-glucosidase inhibitory activity by micro-plate.
Results: Ten phenolic constituents were isolated and identified from the active fraction of S. nepalensis. They were identified as isorhamnetin(1), quercetin(2), isorhamnetin-3-O-β-D-glucopyranoside(3), isoquercetin (4), astragalin(5),isorhamnetin-3-O-(6"-p-coumaroyl)-β-D-glucopyranoside(6),isorhamnetin-3-O-(6"-caffeoyl)-β-D-glucopyranoside(7), isoferulic acid(8) Caffeic acid(9) and ellagic acid(10). All of the phenolic compounds were assayed for their hypoglycemic activity against α-glucosidase in vitro. Compound 4, 6 and 7 showed promising α-glucosidase inhibitory activity with the IC50 values of 0.69 mg/ml, 0.56 mg/ml, 0.45 mg/ml, respectively.
Conclusion: Compounds 5-8 were isolated for the first time from S. nepalensis. This is the first report on the characterization of phenolic compounds and possible utilization of S. nepalensis for therapeutic intervention in type 2 diabetes.