bluuebunny/crossref_metadata_2025 huggingface dataset:
Investigation on Rotation/Curvature Correction Methods of SST Turbulence Model in Numerical Simulation of Axial Compressor
Authors: Wang Ziwei , Cao Jie , Jing Xuejiao , Li Baiyu , Li Bin
Published: December 2023

Turbulence models which are widely used in engineering applications usually need correction in axial compressor CFD simulations due to the intense rotation of the system. In order to understand the applicability of rotation-curvature correction methods of turbulence models in numerical simulation of axial compressors, several correction methods were implemented based on SST turbulence model on an inhouse CFD solver ASPAC and numerical simulations were carried out on a transonic compressor Rotor37. The results shows that the rotation/curvature correction models mainly affect the corner separation on the suction surface of the blade. More specifically, SST-Helicity model reduces corner separation at the suction surface and performs well at conditions with relatively large mass flow rate. Results from SST-CC and SST-Hellsten model are close to but slightly worse than that of standard SST model in terms of agreement with experimental data. In summary, detailed assessment and discussions on different rotation/curvature corrections of turbulence models were carried out based on numerical results of a transonic compressor in this paper, which may contribute to the choice of turbulence models and investigation of turbulence modeling and model correction methods in axial compressor simulations in the future.
Wind damage vulnerability analysis of narrow base tower for distribution line based on probabilistic reliability
Authors: Fang Chaoying , Xu Jun , Zhang Yanhui , Wu Zhaoqi , Li Long , Han Jiceng , Qian Jian
Published: December 2023

Steel narrowbase tower has been widely used in distribution network in recent years because that it covers an area smaller than the conventional tower, and has stronger wind resistance than concrete pole. In order to fully understand the wind resistance performance of narrow base tower, a vulnerability performance of narrow base tower under different wind speeds was analyzed based on probabilistic reliability theory. According to the damage characteristics of narrow base tower and the corresponding tall structure specification, wind performance level indexes of narrow base tower were established. When calculating the effect of wind load on narrow base tower, the randomness of wind load, material properties and dimensions were considered. The probability of the narrow base tower appearing different degrees of damage under different wind speeds was calculated, and subsequently a wind vulnerability curve of the narrow base tower was drawn. It is found that the severe damage probability of narrow base tower is about 5% when the wind speed is 23.6m/s. And in the case of severe damage probability is 95%, the wind speed reaches 80m/s. Narrow base tower has good resistance to wind disaster.
Study on Condensed Matter Simulated by Multiphase Fluid-Solid Coupling Fluid Mechanics
Authors: Song Yingbin , Dong Xiaonan
Published: December 2023

The hydrodynamic characteristics of a three-phase gas-liquid-solid turbulent bed with light particle flow and intermittent liquid feeding were numerically simulated by CFD program Fluent6.3. The axial and radial motion of particles in a three-phase gas-liquid-solid turbulent bed and the variation of particle concentration in the bed are studied. The results show that the size and frequency of cavitation increase with the increase of the distance from the axis of the air distribution disk and the distance from the bed surface to the central region. The void varied from narrow to wide, while the void changed in the opposite direction. The bubble lift rate and bubble size are basically the same in axial and radial direction. With the increase of the surface gas velocity and the viscosity of the liquid phase, the average particle content in the bed decreases.
Structure Dynamic Analysis of C-9 Parachute Using Absolute Nodal Coordinate Formulation Thin Shell Element
Authors: Liu Fan , Tong Ying , Zhang Lu , Mo Yongfei
Published: December 2023

In parachute fluid structure interaction (FSI) simulation, traditional parachute structure discrete methods including classic finite element method and mass-spring-damp method suffers from its large computational cost and deficiency in describing material property. This paper develops a generic shell element based on absolute nodal coordinate formulation (ANCF) to model parachute canopy to reduce computation resources and retain membrane strain/stress analyzing capability. We conduct multiple validation cases of ANCF plate and shell element and compare with current literature, in which large deformation configuration and stress distribution have been verified. A 1/4 C-9 parachute canopy inflation process by uniform pressure is simulated by discretizing into 7 ANCF shell and 84 shell element, for which the number of element discretization reduces to 1/10 than classic FEM and computational cost is considerably reduced using band sparse matrix solving technique.
Numerical Simulation of Airflow Organization in Paint Spraying System of car Lampshade
Authors: Zhou Lei , Ma Jiayan , Wang Huafang , Fan Rong
Published: December 2023

According to the design requirements of the airflow organization of the car lampshade paint spraying system, the corresponding physical model is established, and the flow state of the air organization in the entire paint spraying system was simulated using Fluent software. On this basis, the wind speed of all mechanical air supply and air exhaust in the paint spraying system are adjusted to find the optimization and improvement direction of the airflow organization, so that the air pressure and wind direction in the system meet the environmental requirements of the car lampshade painting process, economically reducing the harm of paint, and providing reference for the ventilation design of the paint spraying system.
Performance analysis of small steam turbine in high back pressure heating unit
Authors: Che Yongqiang , Chen Yisen
Published: December 2023

In view of the change of the operation mode of the small steam turbine of the high back pressure modified unit, the performance evaluation formula of the small steam turbine and the feed water pump is given. Through the performance test, the performance indexes of the small steam turbine and the feed water pump set are obtained, and the detailed data analysis is carried out. It is found that the modified small steam turbine and the feed water pump set do not meet the design requirements. The analysis of the test results, found the reasons for the performance is not up to the standard, and gave the next step.
Preface: 2nd International Conference on Architecture, Geotechnical Engineering and Construction Technology (AGECT 2023)
Authors: Giles Burgess , Zhang Wen
Published: December 2023

The 2023 2nd International Conference on Architecture, Geotechnical Engineering and Construction Technology (AGECT 2023) was held in Barcelona, Spain from September 9-10, 2023. The conference brings together innovative scholars and industry experts in the fields of architecture design, urban planning, building materials, structural engineering, civil engineering, geotechnical engineering, and construction technology into a common forum. The main objective of AGECT 2023 was to promote research and development activities. Another goal is to promote the exchange of scientific information between researchers, engineers, PHDs, students, and practitioners working in the conference and workshop.

During the conference, the conference model was divided into three sessions, including oral presentations, keynote speeches, and online Q&A discussion. In the first part, some scholars, whose submissions were selected as the excellent papers, were given about 8-15 minutes to perform their oral presentations one by one. Then in the second part, keynote speakers were each allocated 30-40 minutes to hold their speeches.

We would like to acknowledge all of those who supported AGECT 2023. The help and contribution of each individual and institution was instrumental in the success of the conference. In particular, we would like to thank the organizing committee for its valuable inputs in shaping the conference program and reviewing the submitted papers. We are sure that the proceedings will serve as an important research source of references and knowledge, which will lead to not only scientific and engineering findings but also new products and technologies.

With best regards,

Conference Organizing Chair

Barcelona, Spain
Optimization of Bridge Crane Main Beam Dimensions Based on Sparrow Search Algorithm and Finite Element Analysis
Authors: Gao Yaoguang , Zhang Qilin , Xu Zhenming
Published: December 2023

With the development of information technology, mathematical statistics methods have been widely used in the optimization of mechanical components. This study optimizes the main beam of a bridge crane based on the sparrow search algorithm and finite element analysis. The size of the main beam of a bridge crane has a significant impact on its structural strength and stability, making the optimization of this problem practically significant. Firstly, different sizes of main beams are simulated using finite element analysis under the most critical working conditions to obtain their structural stress and deformation. Then, the Sparrow Search Algorithm is introduced as the optimization algorithm to obtain the optimal size of the main beam through iterative solving. Finally, the effectiveness and superiority of the Sparrow Search Algorithm in the optimization of the main beam of a bridge crane are validated by comparing it with traditional optimization algorithms. Experimental results demonstrate that the optimization of the main beam of a bridge crane based on the Sparrow Search Algorithm and finite element analysis can effectively improve the structural performance of the main beam, offering certain engineering application value.
Research on Planning and Design of Landmark Landscape Architecture Integrating China Traditional Culture
Authors: Huang Yushuo
Published: December 2023

Traditional culture is a culture formed by a nation in the process of civilization evolution, which can reflect the national characteristics and ideological style, and is the overall expression of the Chinese people's thoughts, feelings, ideological forms and aesthetic concepts. China's traditional culture is the historical precipitation of our country after thousands of years, which contains rich cultural connotations and has a very broad mass base and cultural heritage needs. Integrating traditional cultural elements into the planning and design of landmark landscape architecture requires landscape designers to deeply explore local traditional culture and show it with modern elements to create a harmonious living environment rich in traditional beauty. This paper mainly analyzes the necessity of the application of traditional culture in the planning and design of landmark landscape architecture, expounds the principles of the planning and design of landmark landscape architecture in the context of traditional cultural elements, and then explains the application of China traditional culture in the planning and design of landmark landscape architecture, aiming at making people feel the beauty of traditional culture while tasting modern cities, enhancing people's cultural self-confidence and enhancing the intimacy of urban landscape.
Architectural Characterization of Hongjialou Catholic Church in Jinan
Authors: Wang Zhaodan , Zhang Shuhan
Published: December 2023

This paper focuses on the Hongjialou Catholic Church in Jinan, China. Hongjialou Catholic Church was designed by Italian Brother Poncieri. It is one of the larger Catholic churches in Jinan. It occupies an important position in modern Chinese religious architecture. This paper will use the field research method, literature analysis method, comparative analysis method, and chart enumeration method to analyze the Hongjialou Catholic Church in terms of its construction background, plan layout, facade style, decorative decoration and building materials, structure, etc. in terms of culture, art, and other aspects. To further demonstrate the rules of decorative construction of typical Western Gothic church buildings, compare Hongjialou Catholic Church with Western churches, and study the influence of localization on the facade and interior space decoration and ornamentation of Western churches. And through the comparison with other Chinese modern Catholic churches, it is concluded that the localization influence of Hongjialou Catholic Church is not significant, which will help the subsequent in-depth study of Hongjialou Catholic Church in terms of artistic achievement and historical and cultural value.
Research on the Application of Ground Penetrating Radar in Advanced Geological Prediction of Deep Buried Tunnels
Authors: Du Hongyi , Liu Ze , Zhao Yunwei , Wang Tian
Published: December 2023

With the development of the social economy and the emergence of a large number of tunneling projects, the importance of over-advance geological forecasting in the safe construction of tunnels has become increasingly obvious, and it has also attracted a lot of attention from the academic community. In this paper, the measured radar data are analyzed to verify the feasibility of ground-penetrating radar in the overtopping geological prediction of deep-buried tunnels and the validity of data characteristics. By analyzing the overtopping geological data of ground-penetrating radar and verifying the results by excavation, the following conclusions can be obtained: in the process of overtopping geological forecasting, ground-penetrating radar has the characteristics of simplicity, convenience, and high accuracy, and the method can make anomalies in advance for the abnormalities in front of the tunnel's palm face, and it can provide accurate and reliable geological information to ensure that the tunnel project can be constructed safely.
Design and Application of New Support and Power System of Residential Building Machine
Authors: Luo Fajiang , Meng Zhaohu , Li Jing , Zhang Buyue , Gao Jinliang , Jiang Xuezhi , Liu Kai , Zhang Lidong , Lei Ye
Published: December 2023

In recent years, with the transformation and upgrading of national development and the acceleration of urbanization, the construction mode of high energy consumption, high pollution and high labor intensity in the construction industry can no longer meet the development needs. The State Council and the Ministry of Housing and Urban-Rural Development have successfully issued policies and initiatives to improve industrialization and intelligent construction. In 2021, the Ministry of Housing and Urban-Rural Development issued a building height limit order, and it has become a trend that aerial building machines have begun to diversify into ordinary high-rise residences. The "14th Five-Year Plan" construction industry development plan issued by the Ministry of Housing and Urban-Rural Development proposed accelerating the coordinated development of intelligent construction and new building industrialization and promoting digital design, intelligent production and intelligent construction. In response to the national policy guidance and leading the development of the industry, solve the inherent problems in the construction industry, learn from the application concept of super high-rise heavy-duty construction equipment integration, create a "factory-like" construction environment for ordinary high-rise through lightweight, standardization and intelligent and other innovative technologies, and explore a construction integration platform suitable for high-rise residences, called "high-rise building industrialization construction lightweight construction operation integration platform" (referred to as "building machine"). Based on the first generation of building construction machines, continuous improvement and replacement, the supporting power system has dramatically improved in support capacity and lightweight. The effective combination of a support column, hydraulic cylinder, and pump station has been realized, which is more convenient and faster, and the construction is more efficient.
Content-based adaptive network model to analyze the effect of graphene oxide on cement hydration process and its main hydration products
Authors: Qin Liting
Published: December 2023

Graphene oxide nanomaterials can significantly alter and enhance the microstructure of cementitious materials, thus improving their mechanical properties and durability and bringing about a variety of functionalities of cementitious materials. In this paper, the role of graphene oxide (GO) on cement hydration process and its important hydration products, calcium hydroxide (CH) and hydrated calcium silicate gel (C-S H), was investigated under an adaptive network model. Various GOs were characterized analytically using high atomic force microscopy and transmission electron microscopy techniques, and both the hydration process and the concentration of their hydration products were measured in freshly mixed aqueous mortars with various GO admixtures using heat of hydration, X-ray diffraction studies and thermal reanalysis tests.
Primi appunti sulla scripta del ms. Dublin, Trinity College, 269
Authors: Cesena Matteo
Published: December 2023

L’articolo rimette in discussione la questione della collocazione del ms. Dublin, Trinity College Library, 269, testimone di opere apparentemente riconducibili all’eresia catara e caratterizzato da una scripta legata generalmente all’area alpina. I risultati di questo primo studio della grafia impiegata dai tre copisti ivi operanti permettono però di specificare ulteriormente questa localizzazione, avvicinando, almeno parzialmente, tale codice alla produzione manoscritta valdese, identificandolo così come il testimone più antico di questa peculiare scripta.
La adquisición de competencias transversales y docentes con proyectos de aprendizaje tutorado integrados en una WebQuest en el Grado de Infantil
Authors: Ureña Ortín Nuria , Alarcón López Francisco , Madinabeitia Cabrera Iker
Published: December 2023

Introducción: el uso de las tecnologías de la información y de la comunicación (TIC) para la adquisición de competencias transversales y docentes en la enseñanza superior, aunque habitual en algunas áreas, ha sido poco estudiado en la formación inicial del profesorado de infantil. El objetivo de este estudio fue analizar la percepción de los estudiantes sobre el uso de una metodología de proyectos de aprendizaje tutorado (PAT) integrada en una WebQuest (WQ) para facilitar la adquisición de competencias transversales y docentes de Educación Física en la formación inicial de maestros. Metodología: se aplicó un diseño de investigación cuasiexperimental con grupo control, test y postest en una asignatura de Educación Física del Grado de Infantil. A fin de recoger la información, se utilizó una escala validada para la autopercepción de competencias docentes de los estudiantes. La muestra, formada por 129 estudiantes de la Facultad de Educación, estaba dividida en dos grupos. Ambos recibieron la misma metodología PAT. Un grupo lo hizo a través de una WQ, mientras el otro grupo no utilizó ninguna metodología en red. Resultados y discusión: los resultados indicaron que el uso de WQ favoreció una mayor percepción de alumnado en la adquisición de competencias transversales. También se hallaron diferencias significativas entre los dos grupos en el aprendizaje de competencias docentes. Conclusiones: se constató que WQ después de su aplicación generó un impacto positivo en el alumnado en lo relativo a la adquisición de sus competencias laborales.
ACCURACY OF SHEAR WAVE ELASTOGRAPHY IN THE DIAGNOSIS OF HEPATIC FOCAL LESIONS
Authors: SHAHZAD MA , MUSHTAQ S , MASOOD H , MASOOD D , AHMED R
Published: December 2023

This study aimed to evaluate the accuracy of Shear Wave Elastography (SWE) in diagnosing hepatic focal lesions using triphasic CT as the gold standard. The study was conducted prospectively at the Department of Radiology, Nishtar Medical Hospital, from January 2022 to January 2023. Patients with at least one hepatic focal lesion ranging from 1 to 5 cm in diameter were included in the study. All patients underwent SWE scanning and ultrasound examination. The segment of focal lesions was evaluated, and 5-8 measurements were taken for quantitative analysis of stiffness. In patients with multiple focal lesions, the pathology of all lesions was confirmed by MRI and CT, and the most accessible lesion was analyzed. The mean of all measurements was compared with the findings of triphasic CT and tumor markers to estimate SWE's accuracy, specificity, and sensitivity. The study was conducted on 100 patients, of which 85 were males and 17 were females. The mean stiffness in benign lesions was 10.4 ± 6.32 kPa, and in malignant lesions was 16.3 ± 9.24 kPa. This difference was statistically significant (P<.002). A cutoff value 13.25 was used to differentiate between malignant and benign lesions. The sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of SWE were 78.05%, 71.43%, 88.9%, 52.3%, and 64.3%, respectively. The mean tissue stiffness in focal fatty infiltration was 12.7 ± 8.9 kPa, and in hemangioma lesions was 9.6 ± 4.3 kPa. The mean stiffness in HCC was 15.5 ± 7.1 kPa, in cholangiocarcinoma was 32.6 ± 8.26 kPa, and in metastatic lesions was 22.2 ± 0.5 kPa. In conclusion, SWE has a high sensitivity, specificity, and accuracy for differentiating malignant and benign hepatic focal lesions. The study shows that the stiffness of benign and malignant lesions differs significantly.
EFFECT OF ENZYME SUPPLEMENTATION ON THE PERFORMANCE OF BROILER CHICKENS
Authors: BADSHAH F , LATIF A , MAQBOOL M , AHMAD M , ZAFAR MB , ALI MA , FAIZ S , SARWAR MI , ADNAN M , SOHAIL M
Published: December 2023

To evaluate the influence of xylanase, phytase, and their combination on broiler growth, nutrient digestibility, bone mineralization, and gut morphology. A randomized complete block design was employed for this study. 400 day-old broiler chicks (Ross 308) were dispensed to four treatment bunches with five reproduces per treatment. The birds were haphazardly disseminated among the medicines in light of starting body weight to guarantee homogeneity across gatherings. Broilers supplemented with xylanase and combining xylanase and phytase showed numerically higher average body weights compared to the control and phytase-only groups. However, statistical significance was observed only in the xylanase and combination groups (p < 0.05). The combination of xylanase and phytase demonstrated the lowest FCR, indicating improved feed efficiency compared to other groups (p < 0.05). Xylanase supplementation also resulted in significantly lower FCR than the control (p < 0.05). It is concluded that enzyme supplementation, specifically the combination of xylanase and phytase, significantly enhanced broiler growth, nutrient utilization, and bone health.
TILLAGE PRACTICES AFFECT THE WATER CONSERVATION BENEFITS OF RAINWATER HARVESTING IN SEMI-ARID CONDITIONS
Authors: RIZVI SA , NASEEM W , MUHAMMAD G , ANJUM S , HUSSAIN T , RAFIQUE R , LATIEF N , UMAIR A
Published: December 2023

Livelihood in the Pothwar region of Pakistan is largely dependent on rainwater. Therefore, storing and conserving rainwater for its subsequent use when required is crucial. Amongst various means of in-field moisture conservation, tillage practices play a dynamic role, especially in loose soils of Pothwar area. Under this study, the efficiency of commonly used tillage implements i.e., mould board (MB) plough, disc plough and cultivator, was evaluated for moisture conservation and improvement in wheat (Triticum aestivum L) yield. The three years’ study showed that maximum soil moisture and grain yield were obtained in the field tilled with MB plough followed by disc plough. It has been observed that soil water was improved by 11.3, 10.6, 9.9 and 11.5 % in the treatment of MB plough, while this increase was recorded as 5.7, 9.0, 5.2 and 6.8 % in disc plough as compared to cultivator at sowing, 02 months & 04 months after sowing and harvesting stage, respectively. In the treatment of MB plough, improvements were observed as a wheat grain yield 16%, wheat straw yield 19%, productive tillers 6% and plant height by 2%. Furthermore, MB plough enhanced its productivity and profitability with the highest benefit-cost ratio of 1.83. The role of disc plough in soil water conservation and crop productivity enhancement was observed less than MB plough. The current study observed that use of MB plough is beneficial in soil water conservation and improvement of crop yield.
Khôra: Kata yang Melampaui Namanya
Authors: Dwibala Gerardus Evam
Published: December 2023

Artikel ini bertujuan untuk menunjukkan pembacaan Jacques Derrida terhadap Kata Khôra dalam karya Platon di Timaeus dan keterkaitannya dengan konsep différance. Tulisan Derrida yang berjudul Khôra dalam buku On The Name menjadi rujukan utama. Dalam Karya tersebut Derrida menunjukkan pembacaan ber-genre dekonstruksi dengan menunjukkan pemaknaan unik terhadap Khôra. Dalam bacaan Derrida, Khôra merupakan sebuah kata yang melampaui namanya. Khôra tidak dimaknai secara harafiah maupun metafora, melainkan ia ada untuk menunjukkan ketidakstabilan makna dalam teks. John D Caputo dalam bacaannya terhadap Derrida memperlihatkan bahwa kisah mengenai Khôra seperti sebuah alegori untuk ‘différance’, keduanya membahas mengenai namelessness; sesuatu yang memang tidak dapat diartikan. Dengan demikian, dalam bacaan Derrida, Khôra dengan segala keistimewaannya menunjukkan sebuah kata yang melampaui namanya.
Struktur, Media dan Makna Karya Patung Abstrak Nazar Ismail
Authors: Suryanti
Published: December 2023

Tarik menarik antara tradisionalisme, modernitas, dan agama Islam, telah membentuk karya-karya patung kayu Nazar Ismail menjadi abstrak, demi menghindari keserupaan bentuk dengan makhluk hidup. Melalui pengaruh masyarakat tempat ia berasal, adat dan tradisi Sumatra Barat yang kuat, Nazar mengolah perenungan diri, kehidupan manusia, dan cerita rakyat yang diketahuinya menjadi patung yang halus, dan unik, dengan kecenderungan simetris, berproporsi seimbang, dan kaligrafis. Studi tentang pematung Nazar Ismail telah menunjukkan bagaimana seniman melakukan akomodasi dan absorbsi agar ide-ide kreatifnya dapat berjalan dan dapat diterima masyarakatnya.
Seni Grotesk Syafrudin
Authors: Sungkar Anna
Published: December 2023

Istilah grottesche atau grotesk digunakan untuk penggambaran iblis abad pertengahan sampai zaman kontemporer. Selanjutnya, segala sesuatu yang melampaui standar normalitas atau keindahan mendapat perlakuan istilah yang sama. Istilah grotesk kadang digunakan untuk merujuk pada seni secara umum, film, karakter, dan bahkan orang. Syafrudin, telah lama memilih gaya grotesk sebagai dasar dalam berkarya. Hal itu berhubungan dengan rasa keprihatinannya pada dunia anak-anak. Namun penggunaan gaya melukis grotesk di Indonesia tidak selalu menyeramkan. Kita melihat bagaimana gaya grotesk telah menyebabkan beberapa karya S. Sudjojono dan Sudjana Kerton menjadi jenaka.
ATTENTION PLEASE POSSIBLE RISK OF STROKE IN THE USE OF SILDENAFIL IN PEOPLE WITH COMORBIDITY OR BEHÇET DISEASE: A CASE REPORT
Authors: Çağırıcı Sultan , Betaş Akın Selin , Haytı Barış
Published: December 2023

Sildenafil erkek ereksiyon işlevi için en sık reçete edilen ilaçlardandır.Sildenafil alımı sonrasında cinsel aktivite ile birlikte geçici iskemik atak (GİA), iskemik/
hemorajik inme olguları bildirilmiştir. Burada özgeçmişinde hipertansiyon (HT), diyabet (DM), Behçet hastalığı (BH) bulunan ve sildenafil kullanımı sonrasında
ani görme kaybı gelişmesiyle acil servise başvuran bir iskemik serebrovasküler hastalık olgusu anlatılmaktadır. Sildenafil kullanımının yaygın olması ve özellikle komorbiditesi olan hastalarda ciddi yan etkilere sebep olabileceği akılda tutulmalıdır.
Serebrovasküler hastalık öyküsü ile gelen hastalarda ilaç kullanımının sorgulanması oldukça önemlidir.
Boron-Doped Thin Films Fabricated by the Spin Coating Method: The Effect of Doping Concentrations
Authors: Atılgan Abdullah , Özel Kenan
Published: December 2023

This work examined the impact of different levels of B-doping on the structural, morphological, optical, and electrical characteristics of ZnO thin films. Boron-doped zinc oxide thin films were deposited on glass substrates using the spin-coating technique. The B concentrations employed were 1, 2, 3, 4, and 5 at. %. The systematic characterizations manifest that the properties of the deposited films were heavily influenced by changing concentrations of B doping. It was found that as the concentration of B-doping increases, the values of grain size decrease. In addition, it was observed that ZnO thin films containing a lower concentration of B dopant exhibited higher transparency. Finally, it was figured out that the resistivity of the films declines dramatically with a higher content of B-doping. The results of our research may initiate further inquiries into the creation of superior thin films.
Respiratory Syncytial Virus Vaccines for Adults
Authors: Zents Maley , Wagner Emily , Hoang Mary , Swiger Christina
Published: December 2023

Respiratory syncytial virus (RSV) is a virus that causes outbreaks of acute lower respiratory tract infections (LRTI) worldwide. The infections are associated with high rates of hospitalizations, which may lead to death, especially in older adults and young children. Due to the morbidity and mortality associated with RSV, pharmaceutical companies have dedicated research to create a vaccine since the 1960s. Despite setbacks after the failure of the first RSV vaccine, new developments in research have led to the approval of two new vaccines. Ensuring healthcare professionals and patients are well-informed about these vaccines is crucial for facilitating informed, collaborative clinical decision-making regarding their administration.
Debt-to-GDP Ratio Is Increased by Unemployment, Stock Trading, and Inequality, Decreased by Inflation, and Unaffected by Interest Rates
Authors: Bechtel Gordon
Published: December 2023

We demonstrate that the debt-to-GDP ratio is well predicted by five closely watched variables that include inflation. The Federal Reserve, economists, and stock market traders have recently expressed concern about the "the worst inflation in 100 years" (CNBC and Aljazeera, 20 May, 2022). Despite their semantic massage, we demonstrate that this outbreak occurred long after the time series studies here, indicating that inflation drove our debt-to-GDP ratios well before it broke out of control in 2022. This suggests that inflation may be an endemic and uncontrollable phenomenon. We contradict the growing concern about “the worst inflation in 100 years” by showing that inflation lowers the debt-to-GDP ratio. Our data driven discovery (DDD) shows that the debt-to-GDP ratio, acting as a dependent variable, is increased by unemployment, stock trading, and inequality, decreased by inflation, and unaffected by interest rates, all acting as independent variables.
Second Language Maintenance Amongst Sojourner Saudi Families After Returning to Their Home Country
Authors: Alshammri Awatif
Published: December 2023

This study explores the language planning efforts for English language maintenance employed by sojourning Saudi families after returning to their home country. The study concludes that the importance of English in the development of different sectors in Saudi Arabia and the advantages of bilingualism in economic, health, and cognitive aspects for children played a significant role in the families’ language planning decisions. The study showed that the mothers maintained and developed their children’s English through following planned language strategies. A focus group discussion and semi-structured interviews illustrated that the mothers used four main strategies, which are speaking English exclusively at home, watching English television shows, maintaining relationships with English native speakers, and playing online educational games in English. The findings of this research study contribute to achieving understanding of sojourner families’ L2 maintenance efforts after returning to their home countries when those are monolingual countries such as Saudi Arabia.The study close with recommendations for future research to further develop this field of research.
Zone of Proximal Development: Investigating the Most Usage Conjunctions and the Common Issues Written by EFL Students at Paragraph Levels
Authors: Jama Itithaz
Published: December 2023

This qualitative paper covered an in-depth investigation of using different types of conjunctions taking into consideration their meaning and functions. To investigate the common issues of using conjunctions and exploring the most types of conjunctions that the participants applied, ZPD was framed to develop the study. The participants were undergraduates who were studying at one of the Saudi universities. They were selected from level one who enrolled in the Grammar 1 course. The sample of the study was chosen randomly. They were divided into two groups, which were Group one and Group two. Both received the same instructions from the same instructor in the class. The difference was that group one had an opportunity to use their textbook and were allowed to discuss and receive help from their partners. Whereas, group two did not receive any help; they were supposed to structure their written texts individually. For this reason, the zone of proximal development theory was selected as a framework. The findings of the study highlighted the participants’ issues in using conjunctions, including fragment sentences, creating too-long sentences with unclear messages, and failing to use punctuations with conjunctions. Further, the results listed the conjunctions that each group used. Group two only used three familiar conjunctions, which were And, But, and Because. However, group one was better at using various conjunctions because they tried to use more types, such as And, Or, So, But, and Because. Thus, applying cooperative learning and scaffolding raised the chance of using student-centered methods in grammar classrooms.
Lalami’s Anomic World: (Dis)Engagement with Normlessness and Attempts at Recovery
Authors: Qutami Mais
Published: December 2023

This article exposes the multi- faceted dimensions of anomie, Emile Durkheim’s highly controversial theory, and the way it applies to Laila Lalami’s novel Hope and Other Dangerous Pursuits (2005). This paper draws on Durkheim’s theory and aims at exploring the anomic world Lalami creates in her representation of Morocco during the postcolonial period and the impact of a state of normlessness on her characters’ experiences. Social norms have been blurred and common values and meanings have lost their significance and power to unite individuals due to economic difficulties, globalization, and colonization. The resulting instability and breakdown of ideals has left Lalami’s characters psychologically paralyzed and unsettled by emergent feelings of alienation, confusion, and an inability to deal with a period of cultural and social upheavals and a debilitated community. Eventually, they are forced to face a fractured society that lacks a sense of direction, a purpose in life, and the social cohesion that previously reinforced a collective conscience. The discussion mainly focuses on the disintegration of family and loss of a moral system that regulates society, and various attempts at recovery from such anomic conditions infiltrating Moroccan culture in Lalami’s novel.
Երևան քաղաքի բազմաբնակարան բնակելի շենքերի կարգադասիչի ձևավորման փուլերը
Authors: Ոսկանյան Վիկտորիա
Published: December 2023

Հոդվածը վերաբերում է բնակարանաշինության ոլորտում շենքերի դասակարգման խնդիր­­­ներին: Աշխատության նպատակն է՝ վեր հանել Երևան քաղաքի բազմաբնակարան շեն­քերի կար­գա­դասիչի ձևավորման փուլերը։ Նյութը մշակվել է տարբեր երկրներում կուտակված փոր­ձի, գիտական գրականության և համացանցի աղբյուրների ուսումնասիրության հիման վրա՝ վերլուծության, համակարգման և դասակարգման գիտական մեթոդներով։ Վերլուծվել են բնա­կելի շենքի գնի վրա ազդող գործոնները, ուսումնասիրվել են բնակելի շենքերի կարգադասիչի հարմարավետության կարգերի չափանիշները, մշակվել են կարգադասիչի ստեղծման առանձ­նա­հատ­կությունները: Ամփոփելով արդյունքները՝ հիմնավորվել է կարգադասիչի ձևավորումն ըստ փուլերի մոդելի՝ հիմնվելով բազմաբնակարան բնակելի շենքերի ձևավորման սկզբունքների և ներկայացվող պահանջների վրա, միևնույն ժամանակ առանձնացնելով գործնական դաշտում այն  ներդնելու և իրագործելու տեսանկյունից բաց մնացած հարցերը: Ստացված փուլերի մոդելը կարող է օգտակար լինել բնակարանաշինության ասպարեզում բազմաբնակարան շենքերի դա­սա­կարգման վերաբերյալ օրենսդրական կարգավորումների մշակման համար:
Հոծ կլոր սալերի սեփական տատանումների հետազոտության մի մեթոդի մասին
Authors: Պողոսյան Մանվել , Սարգսյան Մեսրոպ , Թարվերդյան Հովհաննես
Published: December 2023

Առաջարկվում է կլոր հոծ սալերի սեփական տատանումների հետազոտության մեթոդ բազիսային կետերի և համապատասխան Էրմիտի ֆունկցիաների ներմուծմամբ: Տատանումները նկարագրող հիմնական հավասարումներով որոշակի թվային օրինակների վրա ցուցադրվել է առաջարկվող մեթոդի կիրառական նշանակությունը: Առաջին անգամ դիտարկված է միջանկյալ հոդակապային հենարանների վրա տեղակայված կլոր հոծ սալի սեփական տատանումների խնդիրը և արդյունքում որոշված է տեղակայման օպտիմալ դիրքը։ Տեսական արդյունքների ստուգ­ման նպատակով կատարված են փորձարկումներ՝ մետաղական բարակապատ կլոր սալը տեղակայելով տարբեր տրամագծերով օղակաձև հենարանների վրա: Վերջնական արդյունքները ներկայացված են գրաֆիկների և աղյուսակների միջոցով: Կատարված են արդյունքների համե­մատություններ և համապատասխան եզրակացություններ:
Mechanical Behavior of 2D FGP Beam with Uneven Porosity Distribution
Authors: Hoang That Ton Lan
Published: December 2023

This study gives the mechanical behavior of 2D functionally graded porous (FGP) beams using the finite element method. The Matlab code with simple Timoshenko beam elements is written to solve 2D FGP beam problems under distributed load. The transverse deflections are plotted along the length to provide mechanical views about this structure in reality.
Restoration Peculiarities of Ground Water Basins in the Mountainous Relief Regions
Authors: Sahakyan Samvel , Sarukhanyan Arestak , Yedoyan Tatevik , Vartanyan Arevshad , Avanesyan Eleonora
Published: December 2023

The goal of the present research is to figure out how to increase the efficiency with which water resources are used in mountainous relief regions on the example of the Ararat Artesian Basin of the Republic of Armenia. The accumulation of significant water runoffs in reservoirs under difficult hydrogeological conditions requires not only large investments in construction, but also in the transportation of water to the consumer, which is fraught with significant water infiltration losses. The paper shows that by the example of artificial recharge of the Ararat Artesian Basin, instead of building a new reservoir to collect 40 million m3 of water per year, which requires huge capital investments (5.75-6.25 USD/m3), the financial costs can be significantly reduced (0.05-0.075 USD/m3) by pumping the same volume of water into the groundwater basin. The obtained results can be used both in different regions of Armenia and in countries with mountainous relief.
Unconfirmed Fluid Movement in the Pyramid-Shaped Well of the Centrifugal Pump
Authors: Margaryan Albert , Vermishyan Garnik , Sahakyan Aram , Hoveyan Hovsep
Published: December 2023

The article touches upon the unconfirmed fluid movement in the prism-shaped receiving basin of a multi-unit pumping station, which is fed from a large-volume basin through a fluid pressure overflow pipe. During the joint operation of the units, a constant fluid level is established in the receiving basin when the total output driven by the pumps equals the output of the overflow pipe. When one (or several) units are shut down or initiated, an unconfirmed movement occurs in the overflow pipe and the receiving basin. The pattern of change of the fluid level in the receiving basin over time and the timeframe for the formation of a new level have been determined. This study is of practical significance from the perspective of excluding the discontinuity of fluid flow in the pump suction pipe as well as in terms of avoiding cavitation.
Diet and Nutritional Factors in the Prevention and Treatment of COVID-19: An Umbrella Review
Authors: Murphy Melissa , Aucoin Monique , Barbaro Domenique
Published: December 2023

Background: There is growing interest in the use of natural therapies for the prevention and treatment of COVID-19 and related illnesses. The aim of this review was to identify and examine the systematic and narrative reviews reporting on the relationship between diet or nutritional status and COVID-19.
Methods: This paper is part of an umbrella review of studies related to natural health products and therapies for the prevention or treatment of COVID-19, as a follow-up to a live review that was conducted by the World Naturopathic Federation. PubMed and Google Scholar were searched for systematic and narrative reviews.
Results: Seven narrative reviews and four systematic reviews were included. The reviews included evidence suggesting that dietary patterns and nutritional status are important modifiable risk factors relevant to the prevention and treatment of COVID-19. Three systematic reviews reported an association between poor nutritional status and greater COVID-19 severity or death. Narrative reviews suggested a possible benefit of the Mediterranean diet, fibre-rich diets, and antioxidant-rich fruits and vegetables.
Conclusion: The research suggests that nutrition status is a significant factor in the progression of COVID-19 infection. While more clinical and interventional evidence is needed to precisely understand the impact of diet, dietary constituents, and nutritional status on modifying COVID-19 risk, the findings of this review highlight the importance of following existing dietary guidelines to support healthy immune function.
Herbal Medicine and COVID-19: An Umbrella Review
Authors: Oakes Kerrie , Saunders Paul , Lloyd Iva , Turner Tiffany , Gruska Janis , Gibbs Belinda , Gleitzman Sophie , Portella Caio Fabio , Friend Jamie , Graham Kim , Leslie Meagan
Published: December 2023

Background: Most systems of traditional medicine have been using herbal medicines to prevent and treat acute respiratory conditions and various other conditions for centuries. The aim of this project is to identify and examine the systematic and narrative reviews reporting on the therapeutic use of herbal medicines as it relates to the prevention and treatment of COVID-19 and long COVID.
Methods: This paper is part of an umbrella review of studies related to natural health products and natural therapies for the prevention or treatment of COVID-19. It is a follow-up to a live review that was conducted by the World Naturopathic Federation between May 2022 and May 2023. PubMed and Google Scholar were searched for systematic and narrative reviews that met defined quality criteria.
Results: Over half of the initial systematic reviews were excluded as they did not meet the inclusion and AMSTAR criteria. The final paper included 25 narrative reviews and 41 systematic reviews (SR), with half of the SRs reporting on the safety of herbal interventions. Various therapeutic properties of over 60 herbal medicines were outlined, some individually and most of them as part of herbal formula (combinations).
Conclusion/Summary: Herbal interventions demonstrated statistically significant improved recovery in patients with COVID-19. The most common therapeutic properties identified were immunological properties, anti-inflammatory, anti- microbial, and antioxidant while the most frequently investigated herbs were Glycyrrhiza glabra/uralensis, Tinospora cordifolia, and Curcuma longa. More attention is needed on the regulation of herbal medicines, the quality of research, and the safety of herbal medicines.
The Role of Minerals in COVID-19: An Umbrella Review
Authors: Van De Venter Claudine , Konn Cécile , Doherty Monica , Purdy Renée
Published: December 2023

Background: This umbrella review aims to synthesize the existing literature on the preventive and therapeutic benefits of minerals zinc, selenium, iron, copper, magnesium, phosphorus, and calcium in the context of COVID-19 prevention and management. The objective is to highlight the clinical applicability and identify avenues of future research.
Methods: A systematic search was conducted in PubMed and Google Scholar databases using predefined keywords for each mineral combined with COVID-19–related terms. Narrative and systematic reviews were included, following Cochrane guidelines. AMSTAR scoring was used to assess systematic review quality, while SANRA guidelines were used to evaluate narrative reviews. Data extraction and synthesis were performed, and reference overlap analysis was conducted (see Table S1 in the supplemental material).
Results: Narrative reviews highlighted the range of therapeutic properties of minerals including antimicrobial, antiviral, antioxidant, anti-inflammatory, and immune-modulating and the essential role they play in the prevention and treatment of many conditions, including acute respiratory conditions such as COVID-19. The systematic reviews highlighted that deficiency of key minerals such as zinc, selenium, iron, copper, magnesium, phosphorus, and calcium are associated with increased risk of infection and decreased rate of recovery. Iron supplementation may be beneficial as functional anemia is common in those with COVID-19. Zinc supplementation may shorten the duration of olfactory dysfunction.
Conclusion/Summary: Deficiency of minerals may increase the risk of infection and decrease the rate of recovery as it relates to COVID-19. Supplementation with and correction of zinc, iron and selenium deficiencies may improve clinical outcomes and immune responses in those with COVID-19."
Econometric Assessment Of The Level Of Wheat Self-SufficiencyIn RA As A Guideline For Determining The Priorities Of State Policy
Authors: Manucharyan Meri
Published: December 2023

Պարենային անվտանգությունը ժամանակակից պետությունների համար ունի առաջնային նշանակություն, կազմելով ռազմական անվտանգության անբաժանելի մաս: Պարենային անվտանգության հետ կապված հարցերը առավել սրությամբ դրված են անբարենպաստ կլիմայական պայմաններ ունեցող կամ սակավահող այնպիսի երկրների առջև ինչպիսին ՀՀ-ն է: Հոդվածի հիմնական նպատակն է իրականացնել ցորենի ինքնաբավության մակարդակի էկոնոմետրիկ գնահատում և ստացված արդյունքների հիման վրա տալ պետական քաղաքականության առաջնահերթությունները՝ ցորենի ինքնաբավության բարձրացման հարցում։ Հետազոտական նպատակի իրականացման ճանա- պարհին դրվել են հետևյալ հիմնական խնդիրները․  Վերլուծել ցորենի ինքնաբավության մակարդակի և ցորենի արտադրության արդյունքային ցուցանիշների դինամիկան ՀՀ-ում,  Գնահատել ցորենի ինքնաբավության մակարդակի վրա ցորենի արտադրության արդյունքային ցուցանիշների ազդեցության բնույթը՝ էկոնոմետրիկ ռեգրեսիոն մոդելավորման կիրառմամբ,  Կատարված քանակական գնահատման արդյունքների հիման վրա ներկայացնել պետական քաղաքականության առաջնահերթությունները։
Продовольственная безопасность имеет первостепенное значение для современных государств, являясь неотъемлемой частью военной безопасности. Проблемы, связанные с продовольственной безопасностью, более остро стоят у стран с неблагоприятными климатическими условиями или скудной почвой, такими как РА. Основная цель статьи – провести эконометрическую оценку уровня самообеспеченности пшеницы и на основе полученных результатов обозначить приоритеты государственной политики в вопросе повышения самообеспеченности пшеницей. На пути к реализации цели исследования были поставлены следующие основные задачи:  Проанализировать динамику уровня самообеспеченности пшеницей и результаты производства пшеницы в РА,  Оценить характер влияния результатов производства пшеницы на уровень самообеспеченности пшеницы, используя эконометрическое регрессионное моделирование,  Представление приоритетов государственной политики на основе результатов количественной оценки. Научная новизна. Представлены существующие приоритеты государственной поддержки повышения самообеспеченности пшеницей на основе эконометрической оценки влияния самообеспеченности пшеницы на посевные площади и ее среднюю урожайность.