bluuebunny/crossref_metadata_2025_split huggingface dataset:
Performance optimization of radiator engine parameters during hard conditions by control charts monitoring and evaluating
Authors: Abduljabbar Ali Fadhil , Oleiwi Bashra Kadhim , Sabry Ahmad H. 
Published: September 2023

Recently, engine design and control systems have been developed using data-driven modeling techniques to specify the in-cylinder complicated combustion process. The cooling fan performance is highly influenced by several factors that are determined based on what is called (DOE) «design of experiments». These factors include blade tip clearance, pitch angle, distance from radiator. This work presents a method to improve a cooling fan performance of an engine by designing a Six Sigma technique using Control, Improve, Analyze, Measure, and Define (CIAMD). First, let’s assess the existing cooling fan performance and define its problem. Then, let’s specify the parameters that affect on fan performance to be optimized. Next, let’s conduct sensitivity analysis and evaluate manufacturing control of the developed cool Fan. The primary fan does not distribute air enough by the radiator to maintain the machine cool throughout hard circumstances. First, the work demonstrates how to develop an experiment to examine the influence of three performance elements: blade pitch angle, blade-tip clearance, and fan distance from the radiator. In order to improve the performance of the cooling fan, Box-Behnken design is adopted for testing quadratic (nonlinear) effects. It then indicates how to predict optimal quantities for every element, to produce a technique that makes airflows above the objective of 1486.6 m3/h when utilizing experimental measurements. Finally, it reveals how to operate simulations to confirm that this method creates airflow based on the specifications with more additional fans manufactured performance of 99.999 %. The results of S and X-bar control charts indicate that the manufacturing process is statistically under control
Wear-friction properties of friction pairs in disc-pad brakes
Authors: Kindrachuk Myroslav , Volchenko Dmytro , Fidrovska Nataliia , Dukhota Oleksandr , Zhuravlev Dmytro , Ostashuk Mykola , Porokhovskyi Yurii , Kharchenko Volodymyr 
Published: September 2023

This paper reports data on the dynamic coefficient of friction and wear of materials of different types of friction pads and brake discs obtained from experimental research during braking under bench conditions. It was established that on the basis of the chemical composition of the materials of the friction pads with codes, in the temperature range of 100–450 °C with a step of 50 °C, the ratio of the maximum to the minimum wear of the disc varies from 6.0 to 10.0. The value of the disc wear ratio at 800 and 1000 brakings, respectively, in the temperature range of 100–250 °C and 100–450 °C was 7.6 and 14.0. This indicates that for pad materials of type A, B, C, and D under the second thermal regime, the linear wear of the working surfaces of the discs is greater than under the first thermal regime. And for the pad materials of type E and F, the wear of the discs was the same. This indicates that the use of traditional pads is characterized by a higher thermal tension of the disc brake friction pair; the absolute temperature values are in the unfavorable zone of 400–700 °C. That, in turn, could lead to both phase changes and thermal fatigue aging of materials and, as a result, to the deterioration of their tribological and thermophysical characteristics in operation. Thus, the implementation of the method of selecting pad components could improve the performance of disc brake devices of cars
Modernization of public administration in Eastern Europe in the context of implementation of digitalization
Authors: Shashyna Maryna , Gudz Petro , Pankova Alla , Benchak Olesia , Nemyrovska Oksana 
Published: September 2023

The European Union is taking significant steps and supporting the efforts of member countries to improve the quality of public services. The requirements for the digitization of the latter, to improve communication links, highlight the relevance of the research topic by shifting the emphasis to the indirect assessment of the impact of technology transfer in the field of public administration on citizens' satisfaction with public services.
The object of research in this work is the public administration models of the selected countries. The research hypothesis assumes that membership in the EU has a significant impact on the efficiency of public services. Given this, there is an opportunity to transfer technologies, namely technologies of state management.
The countries of Eastern Europe were selected for the study. The work is based on the limitations inherent in the EU accession process.
For evaluation, three regression models were proposed for use in practice. These are a baseline model, a fixed-effects model to account for unobserved differences between countries, and a model with additional factors. The specified models were estimated using the least-square method (LSM). Based on the calculations of the first model, it was determined that the coefficient is statistically significant at the level of 1 %, which explains 12.6 % of the variation in the Index of Public Services (IPS). The results of the estimation of the second model make it possible to estimate IPS more accurately by 0.68. Based on the results of the calculation of the third model, the features of the influence of GDP and IPS were determined.
The results prove that the accession of Eastern European countries to the EU has a significant impact on the efficiency of public services. In this case, the possibility of technology transfer appears. Digitization of public administration is an innovative technology that allows bringing the citizen and the state closer together as efficiently as possible
Revealing patterns of thermophysical parameters in the designed energy-saving structures for external fencing with air channels
Authors: Tagybayev Askhat , Zhangabay Nurlan , Suleimenov Ulanbator , Avramov Konstantin , Uspenskyi Borys , Umbitaliyev Altynsary 
Published: September 2023

This study reports the design of new models of energy-saving enclosing structures with air channels. To calculate the thermophysical parameters of external fences, the Maple computer algebra system was used; the value of thermal resistance of structures was determined on the basis of a finite-element method in ANSYS. The result of the structure analysis showed that the value of thermal inertia of the traditional design and the average value of the thermal inertia of the developed structures were equal. However, the vibration amplitude of the designed enclosing structures was up to 20.72 % more efficient than the traditional one. At the same time, it was revealed that the air gaps did not affect the thermal inertia of the strucure, and its parameters depended only on the total thickness of the material. The analysis showed that the vapor permeability of the inner wall of the designed structures was equal to the traditional one. However, the value of resistance to vapor permeation of the fence of the developed structures was 3.21 % more effective. At the same time, the use of a closed air layer with a heat-reflecting screen makes it possible to shift the possible condensation zone towards the outer surface of the fence. An analysis of the check for the non-condensation of condensate in the ventilated air gap showed that condensate did not fall out in the ventilated air gap in all the considered schemes, and the results of the analysis by the air permeability value showed that all fencing schemes met the requirements for air permeability. Solving the problems of energy saving in construction through the development of new energy-efficient designs of enclosing structures help reduce the cost of thermal energy of buildings, which is an urgent task all over the world today
Development of a layer leveling technology that reduces the energy intensity of the processes of mixing and drying the fodder mass
Authors: Abilzhanuly Tokhtar , Iskakov Ruslan , Issenov Sultanbek , Kubentaeva Gulmira , Mamyrbayeva Indira , Abilzhanov Daniyar , Khaimuldinova Altyngul , Khamitov Nurakhmet 
Published: September 2023

The object of the study is to determine the required power leveling device grinder-mixer-dryer. When operating equipment that combines grinding, mixing and drying in one device, there are such problems as energy intensity, the lack of calculation formulas for the theoretical determination of the required power, which makes it difficult to plan the energy intensity of the equipment. As a result of the research, a constructive-technological scheme of the grinder-mixer-dryer equipped with a leveling device was developed. The leveling device, rotating in opposite directions, moves the raised fodder mass to the end walls of the bunker. The operation of the screed tines eliminates excessive forage lift and speeds up the mixing process by moving the forage evenly across the entire width of the bin. The acceleration of the drying process of wet food is explained by the fact that new portions of wet food are constantly exposed to hot air. As a result of theoretical studies an analytical expression was obtained to determine the required power for the process of leveling the layer of forage mass and the required power for the process of leveling the layer of forage mass NТ=0.286 kW was determined. The results of the experimental determination of the required power for the process of leveling the forage mass layer showed the following value NЕ=0.273 kW, i.e. the difference between theoretical and actual value is only 4.76 %. This proves the reliability of the obtained analytical expression, which provides the definition of the main parameter of the grinder-mixer-dryer, i.e. required power leveling device. The proposed device and the resulting analytical expression can also be used in feed mixers
Implementation of Iwan-Type Nonlinear Rheology in a 3D High-Order Staggered-Grid Finite-Difference Method
Authors: Roten Daniel , Yeh Te-Yang , Olsen Kim B. , Day Steven M. , Cui Yifeng 
Published: September 2023

ABSTRACT
We have implemented and verified a parallel-series Iwan-type nonlinear model in a 3D fourth-order staggered-grid velocity–stress finite-difference method. The Masing unloading and reloading behavior is simulated by tracking an overlay of concentric von Mises yield surfaces. Lamé parameters and failure stresses pertaining to each surface are calibrated to reproduce the stress–strain backbone curve, which is controlled by the reference strain assigned to a given depth level. The implementation is successfully verified against established codes for 1D and 2D SH-wave benchmarks. The capabilities of the method for large-scale nonlinear earthquake modeling are demonstrated for an Mw 7.8 dynamic rupture ShakeOut scenario on the southern San Andreas fault. Although ShakeOut simulations with a single yield surface reduces long-period ground-motion amplitudes by about 25% inside a waveguide in greater Los Angeles, Iwan nonlinearity further reduces the values by a factor of 2. For example, inside the Whittier Narrows corridor spectral accelerations at a period of 3 s are reduced from 1g in the linear case to about 0.8 in the bilinear case and to 0.3–0.4g in the multisurface Iwan nonlinear case, depending on the choice of reference strain. Normalized shear modulus reductions reach values of up to 50% in the waveguide and up to 75% in the San Bernardino basin at the San Andreas fault. We expect the implementation to be a valuable tool for future nonlinear 3D dynamic rupture and ground-motion simulations in models with coupled source, path, and site effects.
Development of the Taiwan Generic Rock Seismic Velocity Profile
Authors: Kuo Chun-Hsiang , Abrahamson Norman 
Published: September 2023

Abstract
Reference velocity profiles for ground-motion models (GMMs) provide more information about the site condition represented by the GMM than the simple site parameters used in the GMMs, such as VS30 (time-averaged S-wave velocity of top 30 m strata from the surface). A reference velocity profile for generic soft-rock site conditions is developed for Taiwan using multiple data sets to span the depth range from 0 to 16 km. The measured VS profiles from PS-logging at strong-motion stations with VS30 between 610 and 930 m/s (i.e., 760 m/s ± 20%) were selected to define the top 30 m of the profile. The velocity profiles obtained from multiple existing geophysical studies were then used to extend the VS profile to seismic bedrock (VS of 3.5 km/s). A corresponding generic rock P-wave velocity (VP) profile was developed using VP from PS-logging measurements and an empirical relationship between VP and VS for the deeper part of the profile. The proposed Taiwan Generic Rock (TWGR) model has VS30 of 754 m/s, Z1.0 (thickness of sediments with VS&lt;1.0  km/s) of 29 m, Z2.5 (thickness of sediments with VS&lt;2.5  km/s) of 2.1 km, and κ0 (spectral decay slope) of 0.052 s. The VS values of the TWGR profile at depths of 50 m–8 km are smaller than from the generic rock profile with VS30=760  m/s for California, which lead to different site amplifications between soft-rock sites in Taiwan and California. The TWGR provides information on the applicability of the large empirical data set of strong-motion recordings from Taiwan to other regions.
Orthosurgical synergism in the management of severe skeletal Class-III malocclusion- A case report
Authors: Kamboj Ashish , Chopra Sukhbir Singh , Angrish Paras , Verma Munish , Chauhan Deepak , Singh Sunil Kumar 
Published: September 2023

: What is now known as a Class-III malocclusion was initially recognized by Pierre Fauchard. True Class-III malocclusion is a genetically based condition that manifests in childhood. As the youngster reaches the teenage growth spurt, it becomes more obvious. Typically, we will discover a parent or grandparent who is dealing with the same issue. Class-III malocclusion, however, is not a disease. The abnormality itself is a compensatory mechanism to make up for variation that has happened at some point during the course of the individual's development.The case presented here demonstrates the importance of presurgical decompensation, surgical planning, including cephalometric predictions, and mock surgery in the management of severe skeletal Class-III malocclusion. The treatment included comprehensive orthodontic and surgical workup that included bilateral sagittal split osteotomy for mandibular setback of 3mm and LeFort-I osteotomy for maxillary advancement of 3mm. Class-I jaw relationships with a pleasing profile and correctly aligned arches were attained after 2 years of detailed treatment. This led to an aesthetic improvement and a significant increase in the patient's confidence. Class-III skeletal malocclusions can be corrected surgically or through camouflage. However, an ortho-surgical approach may be necessary if the issue cannot be resolved with orthodontics alone. When done correctly, bi-jaw surgery has repeatedly been shown to be quite successful.
Comparing and evaluating the obturation techniques by 3 type of delivery system: An invitro method
Authors: Koppalkar Rohit R , Chandana V  
Published: September 2023

: The purpose of this study was to compare in vitro three methods of root canal obturation technique in deciduous dentition using conventional radiographic technique.: 45 root canals of primary molars were prepared by regular manual technique and obturated using zinc oxide eugenol and calcium hydroxide-based syringe form. Obturation methods compared were lentulo spiral, plugger and Iodontin syringe form. Conventional radiographic technique was used to evaluate the Root canal length, Obturation and the presence of voids. The obtained data were analyzed using Chi-square test.The results showed significant differences between the three groups for the radioopacity of obturation (P &#60; 0.05). The results showed Iodontin syringe form has fewer voids compared to lentulo spiral ZOE paste and Plugger for obturation quality. Statistically significant difference was found between Iodontin syringe form and Plugger technique (p= &#60;0.05).: Iodontin syringe form showed the best results in the length of obturation and as well as controlling paste extrusion through the apical foramen. The lentulo spiral and plugger can also be used as an alternative method.
WOMEN’S PARTICIPATION IN THE LEGISLATIVE PROCESS OF THE SENATE OF PAKISTAN (2015-2018): A HISTORICAL ANALYSIS
Authors: Iqbal Hamid , Waris Muhammad , Alvi Asia Saif , Tariq Asifa , Jabeen Humaira 
Published: September 2023

Purpose of the study: The article analyzes the participation of women in the legislative business of the Senate of Pakistan during 2015-18. It explores the political behavior of Pakistan in the context of women and the role of women in politics. This article witnesses an analysis of the Senate’s work during 2015-2018 in the context of women.
Methodology: The assessment of bills, resolutions, privilege motions, questions, call of attention notices, and adjournment motions are analyzed for a deep understanding of the role of women in the Senate. To draw a rational conclusion, the analytical, qualitative and quantitive method is used for the analysis of this study.
Main Findings: This study draws a conclusion that the Senate of Pakistan had not as many women Senators as it needs; however, the women’s participation during this span identified that the number of members does not matter if the present women participate well in the institution. It was also drawn in this study that charismatic leadership also provides ways to all participants without any discrimination.
Applications of the study: The law-making institutions needs the participation of both male and female by their population ratio in the country while the Senate of Pakistan did not have such several women legislators. It is recommended to increase the number of women in the legislature. This study will be useful for legislative bodies, students of politics, and Parliamentary studies.
Novelty/Originality of the study: The study has an edge over other studies in the sense that the legislative business of the Senate of Pakistan had not been addressed in this way. The period of the study had uniqueness because it witnessed a large number of women legislators. This study will make able to understand the importance of women legislators in the legislative bodies.
DIGITAL-МАРКЕТИНГ ЯК ІНСТРУМЕНТ НАРОЩЕННЯ ВАРТОСТІ ПІДПРИЄМСТВ В УМОВАХ ЦИФРОВІЗАЦІЇ
Authors: Дикань В. Л. , Кужавський М. С. 
Published: September 2023

Досліджено еволюцію теорії та домінуючих концепцій маркетингу і обґрунтовано доцільність застосування цифрового маркетингу для формування довгострокової цінності клієнта і нарощення вартості бізнесу. Виявлено, що пандемія коронавірусу і соціальна ізоляція в країні призвели до активізації процесів цифровізації економіки та суспільства і значно змінили поведінку клієнтів. Встановлено, що для сучасного споживача характерним є: зростання ролі цифрових технологій; посилення ролі зручності та доступності товарів і переорієнтація попиту в онлайн-простір; висока чутливість споживачів до ціни та цінових коливань; посилення важливості емпатії споживача до бренду. Зважаючи на трансформаційні зміни споживчої поведінки встановлено потребу трансформації принципів та інструментів управління взаємовідносинами компаній із клієнтами. Розкрито передумови та особливості формування цифрової екосистеми управління взаємовідносинами з клієнтами. Відзначено, що формування цифрової екосистеми управління взаємовідносинами з клієнтами та застосування інструментів цифрового маркетингу сприятимуть побудові довгострокових лояльних відносин зі споживачами, оптимізації витрат на залучення нових клієнтів, нарощенню конкурентних переваг і додаткового прибутку, що в сукупності сприятиме нарощенню вартості бізнесу.
INTELLECTUAL ENTREPRENEURSHIP IN UKRAINE IN WARTIME
Authors: Nazarenko I. I. , Hoppman M. McKay 
Published: September 2023

In this paper we have made an attempt of statistical analysis: we extracted the types of businesses related to IE using open data on the site of State Statistics Service of Ukraine. As a result, the most significant components of IE turned out to be Information and Telecommunication (27% of the total turnover), Financial and insurance activities (27%), and Professional, scientific and technical activities (26%). Real estate transactions - 18%, percentage of Education appeared to be insignificant (1%), as well as percentage of Arts, sports, entertainment and recreation (1%). We have outlined their problems and possible solutions. IT sphere is the biggest and highly developed type of IE in Ukraine, rapidly growing despite the war. Its main problems are devastation of premises and equipment, power outages, while the solutions are relocation, focus on military programs, and opening offices abroad, in the EU countries. The main problems of Finance and insurance activities are credit losses, uneven inflow of new funds, and power outages. The solutions are Regulatory relaxation and Government support programs. The main problems of Professional, scientific and technical activities are the occupation of scientific and educational institutions, temporary relocation of scientists, limited access to equipment, loss of scientific information, etc. The main solutions are International projects for supporting Ukrainian scientists in Ukraine and abroad. The real estate market decreased nearly three times during the full-scale war due to Decreasing purchasing power of people and high risks of buying property. The main solution is the state program eOselya of preferential mortgage for certain categories of citizens. The main problems of Education are devastation of premises, equipment, and brain drain. The main solutions are relocation, remote work, and international aid. To sum it up, for IE development in Ukraine, especially during the war, we suggest the next measures. First and foremost, to implement statistical accounting by aggregating the types of activities actually related to IE, and ensure that correct data are available for each statistical period. Second, to develop special governmental program of support of IE during the war, especially of the most vulnerable activities, such as Education and Professional, scientific and technical activities. Only under these conditions will IE in Ukraine grow and become a driver of innovative change during the war and after the victory.
The Village SDGs? Can Partnership Aspect Enhance the Economic Development in Pangandaran Village?
Authors: Sari Jayanti Armida 
Published: September 2023

This study describes the implementation of SDG programs through partnerships to improve economic development in Pangandaran villages. This research adopts qualitative research method and case study design. A qualitative approach was used because this study aims to analyze how the SDG program builds the economy in Pangandaran village through partnerships. Furthermore, the case study approach was chosen because this study focuses on partnership policies in the SDGs. The data obtained in this study are in the form of primary and secondary data. Primary data were obtained using purposive sampling techniques. To obtain primary data, semi-structured and unstructured interviews were conducted. Secondary data comes from other sources through literature research. The stages of data analysis are data consideration, data display, and drawing and verifying conclusions. The analysis revealed that one of the SDG programs, the partnership aspect, has been implemented in Pangandaran village to promote economic development. However, there are still some obstacles in the implementation process. This is reflected in several aspects such as cooperation with third parties, availability of Internet access in villages, village statistics and goods export activities.