bluuebunny/crossref_metadata_2025 huggingface dataset:
Numerical Study on the Influence of Coupling Beam Modeling on Structural Accelerations during High-speed Train Crossings
Authors: Bettinelli Lara , Stollwitzer Andreas , Fink Josef
Published: June 2023

In the computational prediction of bridge vibrations due to high-speed train traffic, the most accurate results can be obtained by considering the interaction dynamics between the train, the superstructure, and the supporting structure. To achieve this, a detailed understanding of the coupling properties of all elements is crucial as they significantly influence the calculated vibrations. The studies in this article investigate the influence of different levels of modeling complexity on the computational acceleration results of single-span girder bridges with a ballasted superstructure. A numerical study on an extensive parameter field of single-span girder bridges is conducted to investigate the influence of modeling the bridge structures as coupling beams, i.e., by considering them as two vertically coupled beams representing the track (rails and sleepers) and the supporting structure. The connection between both beams reflects the stiffness and damping properties of the ballasted superstructure and can reproduce its load-distribution capacity. The excitation is applied as either a moving load or a multi-body model of the train, an Austrian Railjet, to evaluate interdependencies of interaction effects between the vehicle and track, and between track and bridge structure. The reference model is a simply-supported Bernoulli-Euler beam excited by moving axle loads. The comparison of acceleration results allows for identifying critical combinations of structural and train parameters for which the implementation of interaction dynamics has a particularly significant impact on the calculated vibrations and quantifying that impact. These findings provide the possibility of formulating structure-dependent recommendations concerning the targeted application of more complex modeling of the structure (coupling beam model) on the one hand and train (multi-body model) on the other.
Highly Accurate and Reliable Tracker for UAV-Based Herd Monitoring
Authors: Luo Wei , Zhang Guoqing , Shao Quanqin , Li Xiaoliang , Wang Zhiguo , Zhu Xia , Zhao Zihui , Duan Longfang , Liu Ke , Wang Dongliang , Zhang Xiongyi , Zhao Yongxiang , Liu Jiandong , Yu Zhongde
Published: June 2023

It is a challenging and meaningful task to carry out drone-based livestock monitoring in high-altitude and cold regions. The purpose of AI is to execute automated tasks and to solve practical problems in actual applications by combining the software technology with the hardware carrier to create integrated advanced devices. Only in this way, the maximum value of AI could be realized. In this paper, a real-time tracking system with dynamic target tracking ability is proposed. It is developed based on the tracking-by-detection architecture using YOLOv7 and DeepSORT algorithms for target detection and tracking, respectively. To address the existing problems of the DeepSORT algorithm, the following two optimizations are made: (1) Optical flow is used to compensate the Kalman filter for improvement of the prediction accuracy; (2) A low-confidence trajectory filtering method is adopted to reduce the influence of unreliable detection on target tracking. In addition, an visual servo controller for the UAV is designed to enable the automated tracking task. Finally, the system is tested using the Tibetan yaks living in the Tibetan Plateau as the tracking targets, and the results reveal the real-time multiple tracking ability and the ideal visual servo effect of the proposed system.
Numerical Simulation of Pore Pressure Change Caused by Hydrocarbon Generation in Chezhen Sag and Its Influence on Hydrocarbon Accumulation
Authors: Wang Mingwen , Luo Gang , Qin Feng , Liao Zonghu , Zhou Shuhong , Yang Nianfa
Published: June 2023

Pore fluid pressure is very important to the generation, migration and accumulation of petroleum. The previous studies indicate that the Chezhen sag region is typically characterized by pore fluid overpressure (the difference between pore fluid pressure and hydrostatic pressure). To date, the formation mechanism of pore overpressure and the accumulation regularity of “upper source-lower reservoir” type in this region remains unknown. In order to investigate these problems, a 2-D finite element model is established with regards to the fluid-solid coupling in Chegu 25 block of Chezhen depression, fully considering the existing seismic, logging data and regional tectonic stress environment. Meanwhile, we calculate the abnormal overpressure generated at the source rock during hydrocarbon generation and the process of hydrocarbon migration and accumulation along the faults, analyzing the dynamic conditions of hydrocarbon downward accumulation. The results show that overpressure can accelerate migration of hydrocarbon and improve the efficiency of hydrocarbon accumulation. However, when the overpressure is too large, tensile fractures and shear fractures may occur, resulting in hydrocarbon dissipation, and changing the results of oil and gas accumulation. The overpressure at the source rock is mainly caused by hydrocarbon generation, while the overpressure at the reservoir is primarily created by unbalanced compaction. As the dominant channel of hydrocarbon migration, overpressure will change the direction and path of hydrocarbon migration in the fault. Therefore, the “upper source-lower reservoir” hydrocarbon accumulation model is strongly explained by the high permeability of faults and the presence overpressure. In summary, the simulated overpressure results are in good agreement with the mud weight equivalent overpressure and the drill stem tests (DSTs).
Evaluation of Biocompatibility of PLA/PHB/TPS Polymer Scaffolds With Different Additives of ATBC and OLA Plasticizers
Authors: Trebuňová Marianna , Petroušková Patrícia , Balogová Alena Findrik , Ižaríková Gabriela , Horňak Peter , Bačenková Darina , Demeterová Jana , Živčák Jozef
Published: June 2023

The aim of this study was to analyse the biocompatibility of a material based on lactic acid (PLA)/polyhydroxybutyrate(PHB)/thermoplastic starch (TPS) in combination with additives (plasticizers: acetyltributyl citrate (ATBC) and oligomeric lactic acid ( OLA)). Three types of materials were tested: I: PLA/PHB/TPS + 25% OLA, II: PLA/PHB/TPS + 30% ATBC, III: PLA/PHB/TPS + 30% OLA. The 3D printing itself was preceded by the creation of filaments from granulate and the design of samples. A filament production machine – Composer 450 (3devo; The Netherlands) was used to produce the filaments. Experimental samples were produced by FDM technology on a 3D printer DeltiQ2 (Trilab, Czech Republic). The evaluation of the biocompatibility of the materials included cytotoxicity tests such as the monitoring of viability, proliferation, morphology of cells, and their settlement on the surface of the materials. The cell line 7F2 osteoblasts (Mus musculus) was used in the experiments. Based on the tests, results confirmed the significant influence of plasticizers and their proportions in the mixtures. PLA/PHB/ATBC + 25% OLA was evaluated as the optimal material for biocompatibility with 7F2 osteoblasts. The tested biomaterials have the potential for further investigation, with a possible change in the proportion of the plasticizer, which has a fundamental impact on their biological properties.
The Role of Water Quality on the Water-Agriculture-Health Nexus: An Assessment of Surface Water in Vaalharts, South Africa
Authors: Mokadem Naziha , Ngie Adeline , Viljoen Germarie
Published: June 2023

This paper evaluated the quality and suitability of surface water in the Vaalharts area, South Africa, for human consumption, drinking, and irrigation purposes. Water quality constituents include water pH, EC, TDS, HCO3-, Cl-, SO4, Mg, Ca, k, Na, NO3, F, Fe, PO4, As, Al, Mn, Cr, Cu, Zn, B, Cd, Hg, Pb, N, Sb, Se, and the biological parameter included E. coli along surface waters as well as canals and dams. Sodium Adsorption Ratio, Sodium Percentage, Permeability Index, Residual Sodium Carbonate, Kelley’s Ratio, Magnesium Hazard, and Potential salinity irrigation water parameters indicated that the majority of the water samples are suitable for irrigation. The water quality index values showed that the majority of the samples are unsuitable for drinking but suitable for irrigation and industrial uses. E. coli in the surface water samples in the study area show unsafe water quality with high and very high risk for human health. Based on the classifying criterion of the Heavy Metal Pollution Index and Heavy Metal Evaluation Index, all the water samples are above the critical limit, therefore, unsuitable for human consumption. The carcinogenic risk (CR) concentrations of As, Cr and Cd were above the target risk.
Influence of Key Strata on the Evolution Law of Mining-induced Stress in the Working Face of Deep and Large-scale Mining
Authors: Xie Jianlin , Ning Shan , Zhu Weibing , Wang Xiaozhen , Hou Tao
Published: June 2023

When there are multiple key strata in the overburden of deep coal seam and the surface subsid-ence coefficient after mining is small, it indicates that the overlying key strata fail to break com-pletely after mining. On this occasion, the stress concentration on the working face occurs easily, which in turn leads to the occurrence of dynamic disasters such as rock burst. This study adopted a comprehensive analysis method of field monitoring and numerical simulation to explore the in-fluence of key stratum on the evolution law of mining-induced stress in the working face. Dis-tributed optical fiber sensor (DOFS) and surface subsidence GNSS monitoring system were re-spectively arranged inside and at the mouth of the ground observation borehole. According to the monitoring results of strain obtained from DOFS, the height of broken stratum inside the overlying strata was obtained; according to the monitoring results of surface subsidence, the sur-face subsidence coefficient was proved to be less than 0.1, indicating that the high key stratum does not break completely, but enters a state of bending subsidence instead. In order to reveal the influence of key stratum on the mining-induced stress of working face, two 3DEC numerical models with and without key stratum were established for comparative analysis. As the numeri-cal simulation results show, when there are multiple key strata in the overburden, the stress in-fluence range and stress concentration coefficient of coal seam after mining are relatively large. The study revealed the working mechanism of rock burst accidents after large-scale mining and predicted the potential area of rock burst risk after the mining of the working face, which has been verified by field investigation. The research results are of great guiding significance for the revelation of the working mechanism of rock burst in deep mining condition and its prevention and control.
The Fontanamare Discovery (Sardinia coast, Italy), A Case of Underwater Corrosion of Bronze Coins
Authors: De Caro Tilde , Susanna Fiammetta , Russa Mauro Francesco La , Macchia Andrea
Published: June 2023

The study reported the analytical approach on nine coins found in the wreck A of Fontanamare for understanding the complex corrosion processes that take place in underwater conditions. Optical microscopy (OM), combined with micro-Raman (µ-Raman) spectroscopy, and X-ray diffractometry (XRD) and scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM + EDS) were used to analyse the nature and the microstructure of the corrosion patina in comparison with the non-degraded state of coins. Three main type of corrosion patina based on copper, lead chloride and carbonate were identified: white-green, black and the obtained results for understanding the complex corrosion processes that take place in underwater conditions.
Buckwheat Flour – A Contemporary View of its Importance in Human Nutrition
Authors: Skřivan Pavel , Chrpová Diana , Klitschová Blanka , Švec Ivan , Sluková Marcela
Published: June 2023

Buckwheat is returning to the countries of Central Europe. There are several reasons for this: firstly, because of its interesting chemical composition, which is reflected in its nutritional value and potential health benefits. And secondly because buckwheat, and especially buckwheat flour, are suitable raw materials for the production of gluten-free foods. Buckwheat flours are classified similarly to wheat flours, but the different anatomy of wheat grains and buckwheat seeds makes this classification partly misleading. While wheat flours are largely produced by one standard process, the production process for buckwheat flours is more varied. For wheat and wheat flours, the basic quality parameters and their required ranges for different types of primary and secondary processing are clearly defined. This is not the case for buckwheat and buckwheat flours, and the definition of the parameters and their ranges that characterize its technological quality remain unclear. The standardization of quality parameters and production processes is likely to be necessary for the potential expansion of the use of buckwheat for food production and in particular for bakery products.
I feel! Therefore, I am. From Pain to Consciousness in DOC Patients.
Authors: Riganello Francesco , Tonin Paolo , Soddu Andrea
Published: June 2023

Keywords: Pain; Nociception; Disorders of Consciousness; Consciousness
Broadband Waterborne Multiphase Metasurface with Simultaneous Wavefront Manipulation and Energy Absorption
Authors: Yi An , Zou Han , Zhao Aiguo
Published: June 2023

Acoustic metasurface are artificial structures which could manipulate the wavefront in sub-wavelength dimensions and the previous proposed acoustic metasurface were mostly realized with single materials. An acoustic metasurface with composite structure is proposed for underwater acoustic stealth considering both wavefront manipulation and sound absorption. The unit cells of the metasurface are composed by metallic supporting lattice, interconnecting polymer materials and mass balancing columns. With the gradual modulations of equivalent physical properties along the horizontal direction of metasurface, the incident acoustic wave is reflected to other directions. Meanwhile, the polymer material inside the unit cells would dissipate the acoustic wave energy due to inherent damping properties. With the simultaneous modulations of reflected wave direction and scattering acoustic amplitude, significant improvement of underwater stealth effect is achieved. Compared with single-phase metasurface, the Far-Field Sound Pressure Level (FFSPL) of the multiphase metasurface decreased by 4.82 dB within the frequency range of 3kHz~30kHz. Under a hydrostatic pressure of 5MPa, the linearized mean stress for multiphase metasurface is only 1/3 of that of single-phase metasurface due to much thicker struts and much more uniform stress distribution. The proposed composite structure possesses potential applications due to acceptable thickness (80mm) and low equivalent density (1100 kg/m3).
Simulation Of Total Ionizing Dose Effects Technique for CMOS Inverter Circuit
Authors: Gao Tian Zhi , Yin Chen yu , Chen Yao Lin , Chen Rui bo , Yan Cong , Liu Hong xia
Published: June 2023

The total ionizing dose (TID) effect significantly impacts the electrical parameters of fully depleted silicon on insulator (FDSOI) devices and even invalidates the on-off function of devices. At present, most of the irradiation research on the circuit level is focused on the single event effect, and the research on the total ionizing dose effect is very little. Therefore, this study mainly analyzes the influence of TID effects on a CMOS inverter circuit based on 22 nm FDSOI transistors. First, we constructed and calibrated an N-type FDSOI metal-oxide semiconductor (NMOS) structure and P-type FDSOI metal-oxide semiconductor (PMOS) structure. The transfer characteristics and trapped charge distribution of these devices were studied under different irradiation doses. Next, we studied the TID effect on an inverter circuit composed of these two MOS transistors. The simulation results show that when the radiation dose is 400 krad (Si), the logic threshold drift of the inverter is approximately 0.052 V. These results help further investigate the impact on integrated circuits in the irradiation environment.
An Improved VMD-LSTM Model for Time-Varying GNSS Time Series Prediction with Temporally Correlated Noise
Authors: Chen Hongkang , Lu Tieding , Huang Jiahui , Yu Kegen , Sun Xiwen , He Xiaoxing. , Ma Xiaping
Published: June 2023

GNSS time series prediction plays a significant role in monitoring crustal plate motion, landslide detection, and maintenance of the global coordinate framework. Long Short-Term Memory (LSTM), a deep learning model has been widely applied in the field of high-precision time series prediction especially when combined with Variational Mode Decomposition (VMD) to form the VMD-LSTM hybrid model. To further improve the prediction accuracy of the VMD-LSTM model, this paper proposes a dual variational modal decomposition long short-term memory (DVMD-LSTM) model to effectively handle the noise in GNSS time series prediction. This model extracts fluctuation features from the residual terms obtained after VMD decomposition to reduce the prediction errors associated with residual terms in the VMD-LSTM model. Daily E, N, and U coordinate data recorded at multiple GNSS stations between 2000 and 2022 are used to validate the performance of the proposed DVMD-LSTM model. The experimental results demonstrate that compared to the VMD-LSTM model, the DVMD-LSTM model achieves significant improvements in prediction performance across all measurement stations. The average RMSE is reduced by 9.86%, and the average MAE is reduced by 9.44%. Furthermore, the average accuracy of the optimal noise model for the predicted results is improved by 36.50%, and the average speed accuracy of the predicted results is enhanced by 33.02%. These findings collectively attest to the superior predictive capabilities of the DVMD-LSTM model, thereby enhancing the reliability of the predicted results.
Cell Mutagenic Autopolyploidy Enhances Salinity Stress Toler-Ance in Leguminous Crops
Authors: Mangena Phetole
Published: June 2023

Salinity stress affect plant growth and development by causing osmotic stress, and nutrient imbalances through excess Na+, K+ and Cl- ion accumulations that induce toxic effects during germination, seedling development, vegetative growth, flowering, and fruit set. However, the effects of salt stress on such processes, especially in polyploidised leguminous plants remains unexplored and scantly reported compared to their diploid counterparts. This paper discusses the physiological and molecular response of legumes towards salinity stress based osmotic and ionic imbalances in plant cells. A multigenic response involving various compatible solutes, osmolytes, ROS, polyamines and antioxidant activity, together with genes encoding proteins involved in the signal transduction, regulation and response mechanisms to this stress were identified and discussed. This discussion reaffirms polyploidisation as the driving force in plant evolution and adaptation to environmental stress constraints such as drought, feverish temperatures, and in particular, salt stress. As a result, thorough physiological and molecular elucidation of the role of gene duplication through induced autopolyploidisation and possible mechanisms regulating salinity stress tolerance in grain legumes must be further studied.
Place and Behavior: Unveiling the Behavioral Dynamics of the Hajj Pilgrimage
Authors: Juraev Zuhriddin , Ahn Young-Jin , Hyun Kisoon
Published: June 2023

This article explores the behavioral geography of the Hajj pilgrimage, focusing on the impact of the physical environment on pilgrims' behavior. Using qualitative research and analyzing religious literature and online publications, the study reveals significant findings. The spatial arrangement of the Grand Mosque, including the central courtyard and pillars, influences pilgrims' behavior during the Tawaf ritual. Environmental factors such as crowds and noise affect pilgrims' experiences, evoking anxiety while enhancing the ceremony's spiritual significance. Cultural and religious beliefs also shape pilgrims' behavior during the circumambulation. This study provides valuable insights into the multifaceted factors shaping pilgrims' behavior during the Hajj, including spatial organization, cultural influences, and social interactions. The findings can inform improvements in infrastructure, crowd management, and services to enhance the overall pilgrimage experience.
Regional Water Crisis: A Case Study of Uzbekistan and its Neighboring Countries
Authors: Gofurov Ali-Sher , Juraev Zuhriddin , Ahn Young-Jin
Published: June 2023

This study explores the geopolitical dynamics of water conflicts in Central Asia, focusing on Uzbekistan and its neighboring countries. Using a mixed methods approach within the framework of political geography, the research analyzes interactions among regional countries and the implications of population growth, agricultural industrialization, and economic competition, which heavily rely on shared irrigation systems and watersheds. It establishes research objectives, evaluates the water crisis, addresses challenges in water management, and examines contentious issues like hydropower, resource hegemony, and ethnic conflict. Also, the study uncovers historical and contemporary factors influencing water conflicts, regional power dynamics, and the complexities of water governance. The findings highlight the potential for conflict, regional instability, and disruptions to peace resulting from population growth and economic competition within shared watersheds. The study concludes with recommendations to enhance regional cooperation, sustainable water management, and peacebuilding, drawing on soft power theory and advocating for collaborative approaches. This research provides valuable insights for policymakers, researchers, and stakeholders involved in water management and regional cooperation amid evolving geopolitical challenges, contributing to informed decision-making, and promoting strategies for sustainable development in the region.
Examining the Relationship between Pro-Environmental Attitudes, Self-Determination, and Sustained Intention in Eco-Friendly Sports Participation: A Study on Plogging Participants
Authors: Kim Jongho , Kim Sujin , Chung Jinwook
Published: June 2023

In response to escalating environmental concerns and the surge in eco-friendly sports activities, this study investigates the determinants of sustained intention to participate in plogging, a prac-tice that combines jogging and litter collection. The study seeks to discern the effects of autonomy, competence, and relatedness experiences, as suggested by Self-Determination Theory, on the intent to persist in plogging. Additionally, the study probes the moderating role of eco-friendly attitudes, thereby propelling the confluence of sports and environmental research. The research methodology encompassed surveying plogging participants and analyzing their responses. The validation of these relationships was executed using multi-group structural equation modeling. The results revealed that autonomy and competence did not significantly sway extrinsic motivation, but relatedness surfaced as the most influential factor. This suggests that plogging, primarily viewed as a volunteering activity, serves more as a prosocial behavior that bolsters relationships rather than a means to enhance physical competence. The study also found that the value participants derived from plogging and their intention to continue varied based on their eco-friendly attitudes. The study concludes that voluntary participation and socializing are the core values of plogging, and understanding these values can foster healthier and more sustainable behaviors. The findings offer valuable insights for academic, practical, and policy perspectives in promoting eco-friendly sports activities.
Optimization of Mechanochemical Processes Toward Functional Nanocomposite Materials
Authors: SENNA MAMORU
Published: June 2023

Mechanochemical technology is developing rapidly, judging by the scientific information in both basic and applied studies. However, many issues and points of view remain to be discussed. This review presents some new key issues for the optimization of mechanochemical processes in theoretical and practical aspects. Emphasis is placed on powder technology aspects, which are not always discussed compared to functional or microscopic viewpoints. The transfer of chemical species across the interparticle interface between organic and inorganic species during the mechanosynthesis of nanocomposite oxides offers many new possibilities, which are discussed here in detail. Since all material transport is preceded by charge transfer, its driving force has been searched for using terminology beyond the well-established electrochemical ones. The role of organic compounds during the whole process is emphasized, regardless of their survival in the final product. The similarity with the pharmaceutical phenomena is pointed out, although its mentality is very different from that of the synthesis of nanocomposites. Not only for the rational amorphization of the active pharmaceutical ingredient, but also for the stabilization of molecular dispersion states with the participation of excipients are discussed. The effects of liquids, either added or formed by mechanochemical auto-liquefaction, are presented with reference to the comparison between wet and dry grinding. Finally, mechanisms of apparent stabilization of mechanically activated states of products are elucidated to investigate the practical applicability of mechanochemically synthesized products
Persistent Infections of Ostreid Herpesvirus 1 in Adult Pacific Oysters, Crassostrea gigas
Authors: Divilov Konstantin , Wang Xisheng , Fleener Gary B , Schoolfield Blaine , Langdon Christopher , Jin Ling
Published: June 2023

Ostreid herpesvirus 1 (OsHV-1) is one of the most economically important pathogens of Pacific oysters. Understanding the pathogenesis of this virus is critical to developing tools to control outbreaks on shellfish farms. OsHV-1 is genetically related to vertebrate herpesviruses, which have a lytic and a latent stage, with the latent stage capable of being reactivated to the lytic stage. Here, OsHV-1 latency in Pacific oysters was investigated in experimentally and naturally infected oysters. Lytic infection in one-year-old oysters injected with the Tomales Bay strain of OsHV-1 was detectable between 1 and 4 days post-infection (dpi) but was not detectable after 5 dpi. The infected oysters shed 1102 to 1104 DNA copies/ml during the 4-day acute phase. At 21 dpi, the recovered oysters were temperature and chemically stressed and were found to shed 1104 to 1105 DNA copies/ml over a period of 48 h. Lytic shedding was not detectable in two-year-old oysters injected similarly with the same strain of OsHV-1; however, the OsHV-1 genome was detectable by qPCR in the adductor muscle, gill, mantle, and hemocytes within the first 3 dpi, after which it became undetectable. No OsHV-1 was detectable in the adductor muscle, gill, or mantle from experimentally infected oysters on days 15 and 21 post-infection or from oysters sampled 9 months after surviving an OsHV-1 mortality event; however, OsHV-1 DNA could be detected in hemocytes of both experimentally infected oysters at 21 dpi and naturally infected oysters. In addition, lytic viral gene transcription was detectable in hemocytes of experimentally infected oysters between 1 and 21 dpi and in hemocytes of naturally infected oysters.
Finite Element Analysis (FEA) of the Stress and Strain Distribution in Cone-Morse Implant-Abutment Connection Implants Placed in an Equicrestal and Subcrestal Position
Authors: Di Pietro Natalia , Ceddia Mario , Romasco Tea , De Bortoli Junior Nilton , Mello Bruno Freitas , Tumedei Margherita , Specchiulli Alessandro , Piattelli Adriano , Trentadue Bartolomeo
Published: June 2023

Peri-implant bone resorption has been reported around some implants after loading and this could create problems for the long-term stability of peri-implant soft and hard tissues. The causes are still not completely known, but a relevant importance could be assumed by the presence of a bacterial contamination at the micro-gap level of the implant-abutment junction. In this regard, external and internal implant-abutment assemblies have been shown to be much more permeable to bacterial colonization than Cone-Morse or conical connections. A subcrestal implant placement could have aesthetic advantages allowing a better prosthetic emergence profile. In literature controversial experimental and clinical results have been reported about bone resorption around implants placed equicrestally and subcrestally. Interestingly, Finite Element Analysis (FEA) studies revealed to be extremely useful for assessing the peri-implant bone strain and stress. Thus, the aim of this study was a FEA evaluation of implants with a Cone-Morse implant-abutment assembly (Implacil De Bortoli, São Paulo, Brazil) inserted into a bone block model (width: 10 mm, vertical height: 17.5 mm, thickness of the cortical area: 1.5 mm) mimicking equicrestal and subcrestal placements (1 and 2 mm). The results demonstrated that maximum stresses were observed within the cortical bone around the equicrestally placed implants, the lowest in the implant placed 2-mm subcrestally and intermediate stresses within the implant placed 1-mm subcrestally. Cortical bone was more stressed under lateral loads than axial loads. In conclusion, this FEA study suggested that implant placement at -1 mm could be recommended.
SISTEM MONITORING SUHU DAN INTENSITAS CAHAYA PADA SOLAR PANEL 3 WP BERBASIS IoT (INTERNET OF THINGS)
Authors: Alfith Alfith , Premadi Aswir , Bachtiar Antonov , Al Habib Sayyid
Published: June 2023

Berdasarkan peta insolasi matahari, wilayah Indonesia memiliki intensitas radiasi harian matahari sebesar 4,8 kW/m per hari. Potensi radiasi matahari sangat berpotensi untuk dimanfaatkan dan merupakan penghasil sumber energi yang paling menjanjikan dimasa mendatang, Energi yang dihasilkan matahari tidak terbatas dibandingkan sumber energi fosil yang semakin menipis. Sudah banyak pakar energi yang bersaing untuk menemukan penemuan baru tentang sumber energi alternatif yang ramah lingkungan, salah satunya yaitu sel surya, walaupun secara efisiensi saat ini masih perlu pertimbangan lebih lanjut. Pada penelitian ini penulis menggunakan modul Wemos dengan tipe ESP 8266 yang dapat terintegrasi dengan system wifi sebagai kontrollernya, serta menggunakan sensor suhu dengan tipe DHT11 untuk mendeteksi suhu pada ruangan dan menggunakan sensor LDR sebagai pendeteksi intensitas cahaya atau sebagai lux yang dapat dimonitoring secara jarak jauh menggunakan koneksi internet. Didapatkan hasil monitoring intesitas cahaya dan suhu dengan nilai intensitas cahaya dan nilai suhu menggunakan penerapkan nilai tertinggi sebesar = 1005 lux, nilai terendah sebesar = 435 lux. Sedangkan untuk nilai tertinggi suhu sebesar= 320 Celcius, untuk terendah sebesar = 240 Celcius, pada kondisi cahaya matahari dalam keadaan puncak, maka nilai yang dihasilkan intensitas cahaya sebesar 1005 lux dan nilai suhu sebesar 32° Celcius yang menandakan bahwa kondisi cuaca sangat panas.
The Influence Of Leadership, Organizational Culture, And Work Competence On Employee Performance Through Work Motivation
Authors: Widayanto Tito , Nugroho Sukmo Hadi
Published: June 2023

This research was conducted to explore the influence of leadership, organizational culture, and work competence on employee performance which is mediated by work motivation. This research is a development of previous research on employees in one of the local government agencies. The contribution of this research is expected to be able to provide new information at the theoretical/scientific level of human resource management and add new references and managerial implications that can be positively applied to non-profit organizations. Referring to the results of previous research and empirical theory related to the learning process of human resource management, this research was conducted using a survey data collection method by distributing questionnaires online, respondents were selected based on a purposive method sampling of ministry employees in charge of coordination in the fields of politics, law, and security. The analysis in this study uses factor analysis and Lisrel structural equation modeling (SEM). The findings from this study are that leadership and organizational culture are not directly related to employee performance, but the role of leadership and organizational culture can be related to employee performance through the mediation of work motivation. The managerial implication of this research for the organization is being able to encourage the role of a leader to be able to improve the performance of its employees in the organization and the various cultures within the organization can be uniformed following the culture which can provide positive changes to the work motivation of employees to achieve organizational goals.
The State Economic Violence And Madurese Women
Authors: Rosyadi Khoirul
Published: June 2023

This research is a qualitative research that looks at and explores how economic violence perpetrated by the state impacts women. The research was conducted in Bangkalan Madura using a descriptive qualitative approach. The results of the research show that the state policy to increase the price of fuel oil (BBM) is considered as state economic violence. As a result, this country's economic violence has an impact on the lives of Bangkalan Madura women. To get out of this problem, the state should be wiser in raising fuel prices.
Representation Of Chinese And African Relationship Through Wolf Warrior 2 Film
Authors: Septiani Cherli , Hadi Rahadjeng Pulungsari , Waworuntu Adrianus Laurens Gerung
Published: June 2023

Film Wolf Warrior 2 (war Wolf2/ zhàn láng 2) by Wu Jing which was released in 2017, tells the story of a former Special Forces of the People's Liberation Army (TPR) named Leng Feng in Africa. Leng Feng was an employee of the export trade from China to Africa, but with the wars and epidemics that occurred in Africa, Leng Feng had to evacuate Chinese citizens who were in Africa to return to China. The film not only features the main character Leng Feng, but also features a setting in Africa and several dialogues mention things about Africa. Based on the observations made, the writer intends to research the film Wolf Warrior 2 which was released in 2017 which was made and directed by Wu Jing. Observations were made to see how the film Wolf Warrior 2 represents the relationship between China and Africa, and to see its meaning through the scenes in the film. Through descriptive qualitative methods, the researcher found that the film Wolf Warrior 2 displays diplomatic relations between China and Africa.
ANAYASALCILIK PARADOKSU
Authors: ÇEVLİK Ahmet Melihşah
Published: June 2023

Anayasalcılık, temel hakları güvence altına alarak iktidarı sınırlandıran, keyfî iktidarı ve iktidarın kötüye kullanımını engellemeye yönelen bir fikir, bir fenomendir. Anayasal bir devlette siyasal iktidar tahayyül edilebilecek en demokratik yöntemlerle oluşmuş olsa bile mutlak olmayıp belirli birtakım kurumsal mekanizma ve ilkeler ile kayıt altına alınmış, yani sınırlanmıştır. Bununla birlikte çağdaş rejimlerin meşruiyetini imleyen iki ilke, demokrasi ile anayasalcılık arasında bir gerilim olduğu yönünde uzun yıllardır süregelen bir tartışma söz konusudur. Siyaset ile hukuk, kurucu iktidar ile anayasal form ve anayasalcılık ile demokrasi arasındaki ilişkilerin bir çatışma ya da uzlaşmazlık ilişkisi olarak yorumlanabilirliğine gönderme yapan “anayasalcılık paradoksu” elinizdeki çalışma kapsamında irdelenmektedir. Bu kapsamda, bir anayasal formun demokratik biçimde teşekkül eden başta yasama organı olmak üzere, devlet iktidarının tüm bileşenleri karşısında sınırlayıcı bir işlev arz etmesi ile halk/millet egemenliği düşüncesinin ne ölçüde bağdaştığı tartışılmaktadır. Nihayetinde demokrasi ile anayasalcılık ilkelerinin birbirine rağmen değil, birlikte düşünülebilirliğinin koşulları değerlendirilmektedir. Demokrasi ile anayasalcılık arasındaki uzlaşmazlığın birinin diğerine tercih edilmesi suretiyle giderilmesinden ziyade anayasal demokrasinin garantörü olan anayasanın bizzat demokratik meşruiyetinin güçlendirilmesi sayesinde aşılabileceği ileri sürülmektedir. İdeolojik ve temel toplumsal tercihleri, siyasal rejimin temel niteliklerini ve siyasal iktidarın sınırlarını belirleyen potansiyeli nedeniyle anayasanın müzakere ve katılıma dayalı bir yöntemle hazırlanması bir gereklilik olarak ortaya konulmaktadır.
Peningkatan Keterampilan Menulis Siswa Kelas II Sekolah Dasar melalui Model Pembelajaran Cooperative Integrated Reading and Composition
Authors: Ratnasari Desi , Adiwijaya Satria Nugraha
Published: June 2023

Abstrak: Penelitian ini bertujuan untuk mengeksplorasi dan meningkatkan keterampilan menulis siswa kelas II Sekolah Dasar melalui penerapan model pembelajaran Cooperative Integrated Reading and Composition (CIRC). Metode penelitian tindakan kelas digunakan dengan melibatkan siswa kelas II di Sekolah Dasar Negeri 1 Kayugeritan sebagai subjek penelitian. Data dikumpulkan melalui tes dan observasi. Hasil penelitian menunjukkan bahwa penggunaan model pembelajaran CIRC efektif dalam meningkatkan keterampilan menulis siswa kelas II Sekolah Dasar, dengan persentase keberhasilan belajar meningkat secara signifikan dari 24% pada siklus pertama menjadi 66% pada siklus kedua, dan mencapai 94% pada siklus ketiga. Pengamatan selama proses pembelajaran mengungkapkan bahwa faktor-faktor yang mendukung peningkatan keterampilan menulis melalui penerapan CIRC adalah keterlibatan siswa dalam kerja kelompok, keberanian siswa dalam mengemukakan pendapat, keterampilan berpikir kritis, konsentrasi belajar, dan fokus dalam pembelajaran. Penelitian ini memiliki implikasi penting dalam meningkatkan keterampilan menulis siswa pada tingkat sekolah dasar, dan temuan penelitian ini memberikan kontribusi penting dalam pemahaman kita tentang pendekatan pembelajaran yang berfokus pada keterampilan menulis siswa Sekolah Dasar kelas rendah.Abstract: This research aims to explore and enhance the writing skills of second-grade students in Elementary School through the implementation of the Cooperative Integrated Reading and Composition (CIRC) instructional model. The study utilizes an action research method, involving second-grade students from Negeri 1 Kayugeritan Elementary School as research subjects. Data were collected through tests and observations. The results of the study demonstrate that the use of the CIRC instructional model is effective in improving the writing skills of second-grade students in Elementary School. The percentage of students' learning success significantly increased from 24% in the first cycle to 66% in the second cycle, and reached 94% in the third cycle. Observations during the learning process revealed that factors supporting the improvement of writing skills through the application of CIRC include students' engagement in group work, their courage in expressing opinions, critical thinking skills, concentration in learning, and focus in the learning process. This research has important implications for enhancing the writing skills of students at the elementary school level, and the findings contribute significantly to our understanding of instructional approaches that focus on writing skills for lower-grade Elementary School students.
Capillary force method to improve the green density of binder jet additive manufacturing
Authors: Soylemez Emrecan
Published: June 2023

This study investigates the impact of capillary adhesion force on the green part density in metal powder binder jetting 3D printing. Gas atomized Co-Cr-Mo, SS316L, and pure Cu powders were used to print various samples. The printed samples were then treated with water, 1-Hexanol, and n-Amyl alcohol vapor for 24 hours to nucleate capillary bridges between particles and shrink samples uniformly. The volume change was calculated for each sample, and up to –3.1 % volume change was observed. The proposed method can be used to improve green part densities directly on printed parts before sintering.
Modern biophysical view of electromagnetic processes of the phenomenon of life of living biological systems as a promising basis for the development of complex medicine: the role of biophotons
Authors: Nevoit Ganna , Bumblyte Inga Arune , Potyazhenko Maksim , Minser Ozar , Vainoras Alfonsas
Published: June 2023

The results of a theoretical study of the role of biophotons in electromagnetic process of realizing the phenomenon of life are presented in the article. This article is a continuation of the theoretical study of the team of authors, which was published in the Journal of Complexity in Health Sciences, Vol. 5, Issue 1, 2022, p. 22-34 and Vol. 5, Issue 2, 2022, p. 45-57. The aim of the theoretical study was to generalize the available scientific physical and biological knowledge of modern science about the role of biophotons in the electromagnetic processes of the phenomenon of life at the cellular level in order to deepen the fundamental knowledge of Complex Medicine. This study is a fragment of research work on “Development of algorithms and technologies for implementing a Healthy Lifestyle in patients with Noncommunicable Diseases based on the study of functional status” (state registration number 0121U108237: UDC 613 616-056-06: 616.1/9-03). General scientific methods and theoretical methods were used in this theoretical study. Based on the results of this fragment of the theoretical study, twelve conclusions were formulated. The formulated conclusions conceptualize such basic questions as: all living cells at the nanoscale consist of electromagnetic fields and generate electromagnetic fields, cell signaling and all cellular processes are due to electromagnetic interactions, ultra-weak photon emission is a universal optical phenomenon for all cells and plays an important role in communication and in cell life throughout the body.
Non-contact type dynamic responses test of wind turbines
Authors: Cao Li , Zhang Qianqian , Sun Wenlei
Published: June 2023

The performance analysis of wind turbine systems should be considered when calculating the wind speed relative to the wind turbine structure, and is essential for wind turbine design. Since the conditions are precarious in transient state and the operating environments are challenging, the wind turbine is a complex, multivariate, nonlinear system. This paper presents a novel dynamic response test method for wind turbines based on three-dimensional digital speckle measurement. This method use a real-time speckle image collection of objects in various stages using binocular stereo vision to perform stereo matching of deformation points on object surface. A digital image correlation algorithm is used to rebuild three-dimensional space coordinates of matching points so as to achieve wind turbine dynamic response. A laboratory-scale experimental platform is constructed to test the dynamic response of the wind turbine system. In order to verify the accuracy of the proposed method, a three-dimensional model of a wind turbine is built. With dynamic structure response process adopted to carry out dynamic analysis and compare theoretical results with test results, the results vary by less than 10 %, indicating that the test method presented in the paper is feasible and effective.
Optimizing and reliability analysis by firefly and genetic algorithms for a quadcopter
Authors: Gholami Amirhossein , Naghash Abolghasem , Bagherian Dehaghi Mahdi , Imani Kazem
Published: June 2023

Our study aims to obtain the highest level of reliability for a quadcopter, taking financial and mass limitations into account, to achieve the highest level of reliability with the lowest mass and cost. For this purpose, we first calculated the reliability and the relationships that govern it, and based on these relationships, we determined the reliability of the quadcopter subsystems. In order to achieve the highest level of reliability, we utilized optimization algorithms. It is possible to increase the reliability of a system through several methods, such as enhancing the quality of parts and components, using surplus components, improving the quality of parts and components by always using surplus components, and redesigning the system. This study examines the possibility of increasing quadcopter reliability by using additional parts and optimizing it using the firefly algorithm. Lastly, in order to validate the results obtained from the firefly algorithm, we implemented the problem once again using the genetic algorithm and compared the results obtained from both algorithms. After 20 times of running the algorithms, the optimal reliability values were 0.99925 for the firefly algorithm and 0.99999 for the genetic algorithm.
A wholelife cost and carbon perspective of alternatives to septic tanks utilising nature-based solutions
Authors: Brown Gareth C. , MacAdam Jitka , Dotro Gabriela , Jefferson Bruce
Published: June 2023

Septic tank systems (STSs) are widely utilised flowsheets for decentralised wastewater treatment in the UK. With a growing consensus that STSs have a sizeable detrimental impact on the environment, there is a need for rural flowsheets with improved treatment capabilities. This study examines the lifetime cost and carbon emissions of using an enhanced septic tank nature-based solution (EST-NBS) to improve STS compared to a package treatment system (submerged aerated filter (SAF)). The wholelife cost (WLC) of the flowsheets and Scope 2 cradle-to-grave lifetime carbon emissions (LCEs) of the flowsheets were assessed. The EST-NBS flowsheets represent a lower cost improved treatment system than SAFs at population equivalents (PEs) from 5 to 1,000. An STS averages an LCE of over 4,000 kg CO2eq PE−1, with all other considered flowsheets having lower emissions. The EST-NBS flowsheets had lower carbon emissions than SAFs. Even at low populations upgrading from an STS to an EST-NBS is a competitive abatement strategy, with costs of £260 tCO2eq−1 emissions avoided, at 1,000 PE an NBS flowsheet has an abatement cost of –£17 tCO2eq−1. This shows the potential of using NBS flowsheets in rural wastewater treatment providing both a carbon and cost incentive against traditional designs.
Rotary gate discharge determination for inclusive data from free to submerged flow conditions using ENN, ENN–GA, and SVM–SA
Authors: Marashi Ava , Kouchakzadeh Salah , Yonesi Hojjat Allah
Published: June 2023

This study aims at evaluating the performance of the Elman Neural Network (ENN), Elman Neural Network-Genetic Algorithm (ENN–GA), and Support Vector Machine-simulated annealing (SVM–SA) in determining the discharge of a newly proposed rotary gate for the inclusive data range from free flow to highly submerged conditions. For individual free and submerged flows, the models performed as well as that of the traditional relationships. However, the superiority of the intelligent models comes when dealing with the inclusive data set of both flow conditions, where no deterministic approach is available for discharge evaluation prior to specifying the threshold condition. In such complex flow conditions, the ENN–GA hybrid model with a proper structure determined the discharge with rather a high accuracy, i.e., SE of 6.12%. Also, in defining the threshold state, the ENN and ENN–GA models achieved superior results compared to the currently available relationship, i.e., it accurately recognized the threshold condition in almost 100% of the cases while the traditional relationship results were limited to 93% of the cases. Such accuracy of the employed model in assessing the discharge of the structure and its high ability in recognizing the flow state could be of great advantage for irrigation network structure automation.