bluuebunny/crossref_metadata_2025_split huggingface dataset:
Characterization of Aircraft Gasper Jet Flow using Computational Fluid Dynamics Method
Authors: Sriniv Vinod Kumar , Kattimani Subhaschandra , Reddy Ganga 
Published: December 2022

Abstract
The air distribution in cabins is primarily intended to provide occupant thermal comfort and maintain oxygen adequacy through common vents and personalized gaspers. Passengers are susceptible to disease transmission and infection if the correct ventilation systems are not implemented. A good understanding of gasper jet flow is needed, and the estimation of mean velocity and turbulence intensity are good indicators of mixing phenomenon. Gasper jet flow is simulated at isothermal conditions with a commercial numerical code using the Computational Fluid Dynamics (CFD) method. Sensitivity studies are performed to observe the influence of grid topologies and turbulence models on simulation results. A Mean velocity of the gasper jet along its centerline is compared with experimental data obtained through a hot wire anemometer, and a good correlation is achieved. Further, sensitivity studies show that the gasper flow can be precisely predicted through numerical methods, and the same can be adopted for full-fledged cabin level simulations that empower simulation-based assessments of improved gasper designs.
Geodesics, Weighted Sasaki Metric and the Tangent Bundle
Authors: Wang Jian , Wang YuDan 
Published: December 2022

Abstract
A geodesic on the tangent bundle of a Riemannian manifold M , equipped with the Weighted Sasaki metric, can be considered as a curve on M together with a vector field along it. Following the results of Sasaki, we investigated the curvature properties and geodesics of the tangent bundle with Weighted Sasaki metric on Riemannian manifolds. The purpose of the present article is to obtain sufficient conditions for the geodesics of the tangent bundle with Weighted Sasaki metric to be flat.
2000 MSC: 53C07, 53C22, 53C25
Investigation of composite coating induces noise reduction for circular saw blade
Authors: Kang Jinyou , Sun Depeng , Zhang Jinsheng S. 
Published: December 2022

Abstract
Sawing is the most common process applied in the primary and secondary machining sectors. Unfortunately, circular saw blades (CSBs), as the main tool for sawing, will generate excessive noise in the idling and processing, affecting the user's health and the workpiece surface quality. Hitherto, numerous studies have modified the body structures of CSBs for noise reduction. Its challenge is to reduce the CSB’s stiffness and bearing capacity. Here, a novel composite coating circular saw blade (CCSB) was proposed indirectly improving material damping properties. Subsequently, the frequency response characteristics and harmonic acoustics of CSBs were analyzed by the finite element (FE) simulation. Results suggested that the CCSB can present a notable noise reduction ability. It was found that the peak value of the radiation noise for CSBs is mainly concentrated around the sawtooth passing frequency (SPF). By the analysis of the vertical field, the CCSB disorganizes the original sound pressure level (SPL) field due to the dissipation of shear energy, improving the original SPL distribution. The proposed analysis method of the CCSB can provide theoretical guidance for design, optimize low-noise CSBs and improve the processing environment in the future.
Density-depended acoustical identification of two common seaweeds (Posidonia oceanica and Cymodocea nodosa) in the Mediterranean Sea
Authors: Mutlu Erhan , Olguner Cansu 
Published: December 2022

Abstract

The non-destructive samplings are very important in not damaging seagrasses and seaweed under protection, at the field studies. The grasses are prominent in the assessment of the ecological status of the marine environments. One of the effective non-destructive samplings was the acoustical methods which need a low level of the sea and atmospheric conditions as compared to the other remote sensing system. Like the others, acoustic data alone are inherently ambiguous concerning the identities of the scatterers and need sea-truthing at the field studies. Considering the requirements above and the advantages of the acoustical methods, an acoustical in situ study was conducted to discriminate two dominant seagrasses along the western Turkish Mediterranean coast in August (in the year 2012) when biometrics of both species was at maxima. Four different regions were involved in the study during data collection using a split beam echosounder operated at 206 kHz since each region had different strengths of their biometrics reflecting regional variations of the acoustical measurements. For discrimination, a statistical approach based on the acoustical parameters and their statistics was enriched and validated with multivariate analyses (Silhouette, k-means, PCA and CAP analyses). Posidonia oceanica was correlated with mean, median, SD and maximum value of Sa, whereas Cymodocea nodosa was characterized by hardness and roughness of leaf echo, followed by skewness and kurtosis of Sa. The acoustics of C. nodosa were related to regional differences, but P. oceanica was related to the depthwise difference. Both species had highly different densities (g/cm3), followed by biomass. The present study will interactively help acoustical studies to be more common and comprehensible and the other previous studies published did as well.
Determination of lead and cadmium in non-mineralized raw milk samples employing extraction with magnetic restricted access carbon nanotubes followed by FAAS analysis
Authors: Castilho Leandro , Correa Vanessa , Rosa Mariana , Lago Ayla , Martins Giovana , Figueiredo Eduardo 
Published: December 2022

Abstract
Lead and cadmium were determined in non-mineralized raw milk samples employing dispersive solid phase extraction with magnetic restricted access carbon nanotubes (M-RACNTs), followed by flame atomic absorption spectrometry analysis. M-RACNTs were obtained by modifying carbon nanotubes (CNTs) with magnetite nanoparticles and then covering with a chemically crosslinked bovine serum albumin (BSA) external layer. The M-RACNTs particles were very efficient to capture the metals and exclude proteins from the milk, being easily separated from the sample using a neodymium magnet. The extraction parameters were appraised by multivariate optimization (factorial design and Doehlert matrix). The method was validated and proved to be robust for small variations, simple, fast, sensitive and selective. The determination coefficient and limit of quantification were 0.998 and 10 µg L-1, respectively, for both Pb2+ and Cd2+ ions. The developed method was able to determine both metals in concentrations below the maximum residue limits (20 and 50 µg L-1 for Pb2+ and Cd+, respectively, in Brazil), demonstrating that M-RACNTs are promising materials for metal extraction in protein-rich samples, without the need for mineralization procedures.
Blockchain Mining: Understanding its Difficulty in Terms of Hashing Algorithm Efficiency
Authors: MARTINEZ CARLOS ROBERTO MARTINEZ 
Published: December 2022

Abstract
Blockchain is an emerging technology that offers great advantages such as global distribution of information and data immutability over time, but its mining process is known to be time consuming and highly resource demanding. There are different algorithms to mine blocks, being able to operate at different levels of complexity and also incurring different compute costs. This study used a custom and simple implementation of the MessageDigest Java class to evaluate the performance of MD5 version 2, SHA2, and SHA3 (the last two in modalities of 256 and 512-bits) when automatically creating a chain of a thousand blocks, measuring its average time for generation and proof of work verification, alongside to the count of incurred iterations. The SHA3 methods produced stronger hash values but performed slower than MD5 and SHA2, and the complexity level of 4 characters offered the best security level in terms of iteration count versus calculation time. Complexity levels of 5 and 6 characters offered greater security but with a drastic performance reduction, which is proper for critical security systems that do not process high volumes of information. These results are useful for those small to medium organizations that are planning to implement blockchain technologies and need a parameter for understanding exactly what ‘mining cost’ really means in terms of compute costs.
Friction Properties of Black Phosphorus: A First-principles Study
Authors: Wang Changqing , He Qing , Guo Peng , Qi Haoqiang , Su Jianfeng , Chen Weiguang , Tang Chunjuan , Jia Yu 
Published: December 2022

Abstract
Based on the first-principle, the friction anisotropy, structural super-lubricity and oxidation induced ultra-low friction of black phosphorus at atomic scale under different loads have been studied. The results show that the interface friction of black phosphorus shows anisotropy, that is, the friction along the armchair direction is greater than that along the zigzag direction. Moreover, the friction between the black phosphorus interfaces shows a structural superlubricity property, and the incommensurate interface friction is about one thousandth of the commensurate interface friction. In addition, the oxidation of black phosphorus is beneficial to the lubrication between interfaces.
Multi-target based virtual screening of phytochemicals from Heliotropium indicum L. leaves for identification of potential anti-urolithiatic agent
Authors: Kumar Vivek , Gupta Pawan , Sharma Vishnu , Munshi Anjana , Dhiman Anju 
Published: December 2022

Abstract
Heliotropium indicum Linn., a plant also known as 'Indian heliotrope,' is found in tropical and temperate regions of the world, and throughout India. This plant exhibits varieties of therapeutic effects like anti-inflammatory, anti-bacterial, anti-fertility, anti-nociceptive, and anti-tumor activities. In addition, the Heliotropium indicum L. plant have been reported to have therapeutic effects in kidney stone or urolithiasis. But it is not reported to date which phytochemicals are responsible for it. The current studies deal with multi-targets-based virtual screening for identification of the phytochemicals found in Heliotropium indicum L. leaves against different targets including antioxidants and anti-urolithiatic proteins. From the molecular docking-based screening, it was found that phytochemicals Pestalamide B, Rapanone, and Supinine possess had excellent binding modes against the targets selected for urolithiasis activities. However, 3`-Acetyl lycopsamine, Trachelanthamine, Lycopsamine, Heliotrine, Rinderine, Echinatine exhibited the binding modes with some anti-urolithiasis targets only along with all the antioxidant targets. Therefore, these phytochemicals from Heliotropium indicum L. leaves were found to have high potential in urolithiasis, but need to be proved experimentally. These phytochemicals are never reported against urolithiasis or kidney stone to date. Therefore, the results of the current studies can be exploited further for designing and discovering new anti-urolithiasis agents for the treatment of kidney stone/urolithiasis.
Integrated Bioinformatics Analysis Revealed Stemness Features and a Novel Stemness-Related Gene Signature for Risk Stratification in Pheochromocytomas and Paragangliomas
Authors: Li Lei , Qiu Ling 
Published: December 2022

Abstract
Numerous studies have shown that tumor stemness is closely related to the heterogeneous growth of tumor cells and their proliferation, distant metastasis, and resistance to chemotherapy. However, comprehensive studies on the stemness of pheochromocytomas and paragangliomas (PPGLs) are still lacking. The mRNA expression-based stemness indices (mRNAsi) reflecting tumor cell stemness were calculated using the OCLR machine-learning algorithm and PPGLs patients' RNAseq data from The Cancer Genome Atlas (TCGA). The relationship between clinical, molecular and immune microenvironment characteristics of PPGLs patients and mRNAsi values was investigated based on the hub genes that best captured the stem cell characteristics of PPGLs using Weighted Gene Co-expression Network Analysis (WGCNA), Cox and LASSO regression analysis. The higher mRNAsi may be associated with tumor metastasis in SDHB wild-type PPGLs patients, meanwhile also demonstrated lower immune, stromal, and ESTIMATE scores and suppressive tumor immune microenvironment than the low mRNAsi group. The stemness scoring system could be used for the prognostic prediction of PPGLs patients with the high predictive ability (AUC = 0.908), and the patients with lower stemness-related risk scores demonstrated improved immunotherapy responsiveness in the TCGA-PPGLs patient cohort and the real-world cohort of patients receiving immunotherapy. In contrast, PPGLs patients with high stemness-related risk scores showed higher sensitivity to multiple chemotherapeutic agents.We developed and verified a novel stemness scoring system that can be applied to predict prognosis and guide the choice of treatment strategies.
Synchronization of the Ukrainian criminal legislation with the Charter of Fundamental Rights of the European Union
Authors: Demydova Liudmyla Mykolaivna 
Published: December 2022

The article is devoted to clarifying the compliance of the current legislation of Ukraine with the provisions of the Charter of Fundamental Rights of the European Union. The author evaluates the norms of the Constitution of Ukraine from the perspective of the Charter, and then analyzes the completeness of their reflection in the provisions of the Special Part of the Criminal Code of Ukraine. Special attention is paid to human dignity as a priority right recognized by the Charter of Fundamental Rights of the European Union.
The author agrees with researchers who recognize that the new "philosophy of human rights" is implemented in the Charter, which receives a normative embodiment in the founding documents of the European Union, and supports the proposal to make appropriate changes to the text of the current Constitution of Ukraine.
The existing incompleteness of the criminal law protection of such a fundamental right as human dignity in Ukrainian legislation has been confirmed.
Attention is drawn to the practice of the European Court of Human Rights regarding value judgments that cannot be proven in court. It is argued that in such a situation, a person who defends his dignity has the right to express his opinion, assess what happened, with further consideration by the court of the issue of restoring the violated human right in a certain form. And in the presence of evaluative judgments, a person does not lose the right to compensation for damage caused by such judgments. The content, form, direction of such evaluative judgments, their impact on the addressee (the person it concerns), their publicity, etc., are important for the court to make a fair decision.
The author's suggestions regarding the further improvement of the criminal legislation of Ukraine with the aim of its proper synchronization with the legislation of the European Union are presented. Added additional argumentation regarding the need to criminalize slander and insults with clarification of the expediency of recognizing the relevant components of criminal offenses as material with a consequence in the form of compound damage (moral and material).
Культурно-антропологическое измерение современного уголовного права
Authors: Kozachenko Oleksandr Vasylovych , Musychenko Olha Mykhailivna 
Published: December 2022

The spread of cultural-anthropological methodology to the problems of modern criminal law enabled to formulate a new doctrinal definition of criminal law as a culturally agreed system of social freedoms focused on protecting social, material and spiritual values that are the human culture achievements and belong to a person. The proposed cultural-anthropological dimension allowed us to substantiate the appropriateness of recognition anthropodicy as a paradigm of modern criminal law.
The idea of periodization of criminal law genesis was further developed with the identification of three qualitatively different periods of premodern, modern and postmodern, each of which is distinguished by a special role played in culture in general and criminal law in particular.
The article provides different understanding of social justice as the purpose of applying criminal law which is more complicated in the context of the rule of law dominance than in the traditional understanding of the compliance between crime and punishment.
The proposed approach allows to obtain a new type of criminal law, in which a person, regardless of the nature of participation in criminal relations, is provided with a number of rights and legal opportunities to protect their own, or those represented by it, interests. Іn addition, it creates grounds for further study of less global, but no less relevant problems of criminal law, in particular, ensuring objective criminalization, the formation of a coherent system of criminal law measures as a legal consequence of a socially dangerous act, the ratio of measures to physical and legal persons, etc.
Survey of the doctrine of the multiplicity of criminal offenses in the scientific works of Professor M. I. Bazhanov
Authors: Ірина Олександрівна Зінченко  , Shevchenko Yevhen Valeriiovych 
Published: December 2022

The article is dedicated to the memory of the well-known scientist Professor M. I. Bazhanov, who made a significant contribution to the formation and development of the modern domestic science of criminal law.
It was noted that at the Department of Criminal Law of the Yaroslav Mudryi National Law University, the institute of multiplicity of criminal offenses it was the doctor of legal sciences, professor, academician of the Academy of Legal Sciences of Ukraine Mark Ihorovych Bazhanov who initiated the offenses. In his works such as "Prescribing punishment according to the totality of crimes and totality of sentences (1977), "Prescribing punishment according to Soviet criminal law" (1980), "Criminal law of Ukraine. General part" (1992), "Repetition of crimes as a type of multiplicity of crimes" (1993), "Multiplicity of crimes under the criminal law of Ukraine" (2000), several editions of the textbook "Criminal law of Ukraine: General part" (2001 , 2003) considered a wide range of issues related to the characteristics of the institution of the multiplicity of criminal offenses, their concepts, signs and types, problems of punishment, other legal consequences.
Much attention was paid to Professor M.I. Bazhanov devoted himself to the study of single criminal offenses as structural elements of the multiplicity of criminal offenses. In particular, under his scientific guidance, two dissertations of candidates of legal sciences were prepared and successfully defended, devoted to the specified torts: in 1990 - I. О. Zinchenko: "Compound crimes in Soviet criminal law: concepts, types, some problems of qualification and construction of sanctions" and in 2002 by Ye. V. Shevchenko: "Crimes with derivative consequences".
Thus, there is no doubt that M. I. Bazhanov's contribution to the study and development of the doctrine of the multiplicity of criminal offenses is extremely important, and his scientific concepts and expressed ideas are still relevant for the doctrine of criminal law today.
A turizmus munkaerő-helyzete a pandémia után
Authors: Jandala Csilla , Gál Pál Zoltán , Böröcz Lajos , Darázs Fanni 
Published: December 2022

A turizmus a világgazdaság egyik legjelentősebb szektora. A foglalkoztatottak közül minden 11. ember itt talál munkát. A Covid-19 óriási károkat okozott a szektornak, sok millió munkavállaló elhagyta az ágazatot. Magyarországon is kulcskérdés a munkaerő-hiány. Vajon meg lehet-e oldani ezeket a problémákat, és van-e esély a szektor vonzerejének visszaállítására. Az EU részbeni finanszírozásában megvalósuló Next Tourism Generation projekt esélyt jelenthet a probléma megoldására.
Kajian Perilaku Aliran pada Pelimpah Samping Bendungan Sepaku Semoi Kabupaten Penajam Paser Utara Provinsi Kalimantan Timur dengan Skala 1:50
Authors: Crisna Ainul , Dermawan Very , Prasetyorini Linda 
Published: December 2022

To meet the need for raw water at the IKN (National Capital City) in North Panajem Paser Regency, the Sepaku Semoi Dam was built. This study aims to determine the hydraulic behavior of the physical model test of the Sepaku Semoi Dam with a scale of 1: 50. The study of hydraulics was carried out on the spillway, side channel, transition channel, launch channel, energy absorber, and downstream energy absorber based on the results of the physical model test as control over the count approach. In the study of hydraulics on the physical model, water level profile analysis, the discharges studied are Q100th , QÂ¬1000th , and QPMF , with secondary discharge data. The study was carried out on the spillway using the Iwasaki and USBR methods, for analysis on the side channel using the momentum equation, for hydraulic analysis on the transition channel and the launch channel using the energy equation with standard step calculations. Meanwhile, for the calculation of the hydraulic analysis of the USBR type II energy reducer, the momentum and continuity equations are used. For the calculation of the basic material motion using the momentum equation and corrections are made with the shield graph. From the results of this study, the results of the original design conditions on the physical model and final design, as well as the results of the calculation approach on the components of the dam building were obtained.Â Untuk memenuhi kebutuhan air baku di IKN (Ibu Kota Negara) di Kabupaten Panajem Paser Utara maka dilakukan pembangunan Bendungan Sepaku Semoi. Studi ini bertujuan untuk mengetahui perilaku hidrolika uji model fisik Bendungan Sepaku Semoi dengan skala 1 : 50. Kajian hidrolika dilakukan pada pelimpah, saluran samping, saluran transisi, saluran peluncur, peredam energi, dan hilir peredam energi yang yang didasarkan pada hasil pengujian model fisik sebagai kontrol terhadap pendekatan hitungan. Dalam kajian hidrolika pada model fisik, analisis profil muka air, debit yang dikaji yaitu Q100th , Â­QÂ­1000th , dan QPMF , dengan data debit sekunder. Kajian yang dilakukan pada pelimpah menggunakan metode Iwasaki dan USBR, untuk analisa pada saluran samping menggunakan persamaan momentum, untuk analisa hidrolika pada saluran transisi dan saluran peluncur menggunakan persamaan energi dengan perhitungan tahapan standar. Sedangkan untuk perhitungan analisa hidrolika peredam energi USBR tipe II menggunakan persamaan momentum dan kontuinitas. Untuk perhitungan gerak material dasar menggunakan persamaan momentum dan dilakukan koreksi dengan grafik shield. Dari hasil penelitian ini didapatkan hasil kondisi original design pada odel fisik dan final design, serta hasil pendekatan hitungan pada komponen bangunan bendungan.