bluuebunny/crossref_metadata_2025 huggingface dataset:
Impact Damage Detection Using Chirp Ultrasonic Guided Waves for Development of Health Monitoring System for CFRP Mobility Structures
Authors: Tan Langxing , Saito Osamu , Yu Fengming , Okabe Yoji , Kondoh Taku , Tezuka Shota , Chiba Akihiro
Published: January 2022

When impact damage occurs in carbon fiber-reinforced plastic (CFRP) structures, it is barely visible but may cause significant degradation in the mechanical properties of the structure. Hence, a structural health monitoring (SHM) system that can be installed in CFRP mobility structures and is sensitive to impact damage is needed. In this study, we attempted to establish an SHM system based on ultrasonic guided waves, which are generated by inputting a broadband chirp signal into a film-like piezoelectric actuator. The relationship between impact damage size and maximum time-of-flight (ToF) delay was investigated for three types of CFRP plates: woven, non-woven, and hybrid laminates. As a result, it was found that the maximum ToF delay increased linearly with an increase in the damage size for all CFRP laminates. Moreover, the amplitude of the A0 mode was found to be significantly affected by the damage length in the wave propagation direction. Thus, this SHM method using chirp ultrasonic waves can quantitatively evaluate the size and extent of the impact damage in CFRP laminates.
Design and Analysis of a 2-DOF Electromagnetic Actuator with an Improved Halbach Array for the Magnetic Suspension Platform
Authors: Yang Fei , Zhao Yong , Li Huaiyu , Mu Xingke , Zhang Wenqiao , Yue Honghao , Liu Rongqiang
Published: January 2022

For large bearing capacity and low current consumption of the magnetic suspension platform, a 2-DOF electromagnetic actuator with a new structure of halbach array is proposed to improve driving force coefficients. The structure and the working principle are introduced. An accurate sub domain model of the new structure is established to accurately and rapidly calculate the magnetic field distribution for obtaining the parameters and performance of the electromagnetic actuators. The analytical model results are verified by the finite element method. The force/torque model of the magnetic suspension platform is established based on the proposed 2-DOF electromagnetic actuator. Three position-sensitive detectors and six accelerometers are applied to perceive in real time the posture and vibration acceleration of the platform, respectively. Their hardware information is introduced and measurement models are established based on the layout. Finally, the electromagnetic characteristics of the proposed actuator are investigated and compared with the conventional counterpart by finite element analysis. The results show that the average magnetic field, 0.432 T, horizontal and vertical force coefficient, 92.3 N/A and 30.95 N/A, and torque in x and z direction, 3.61 N·m and 8.49 N·m, of the proposed actuator are larger than those of the conventional one.
Selection of Methods of Surface Texture Characterisation for Reduction of the Frequency-Based Errors in the Measurement and Data Analysis Processes
Authors: Podulka Przemysław
Published: January 2022

Processes of surface texture characterisation can be roughly divided into measurement issues and analysis of the results obtained. Both actions can be fraught with various errors, some of which can be analysed with frequency performance. In this paper, various types of surface topographies were studied, e.g., cylinder liners after the plateau-honing process, plateau-honed liners with additionally burnished dimples of various sizes (width and depth), turned, milled, ground, laser-textured, ceramic, composite and some general isotropic topographies, respectively. They were measured with a stylus or via optical (white light interferometry) methods. They were analysed with frequency-based methods, proposed in often applied measuring equipment, e.g., power spectral density, autocorrelation function and spectral analysis. All of the methods were supported by regular (commonly used) algorithms, or filters with (robust) Gaussian, median, spline or Fast Fourier Transform performance, respectively. The main purpose of the paper was to use regular techniques for the improvement of detection and reduction processes regarding the influence of high-frequency noise on the results of surface texture measurements. It was found that for selected types of surface textures, profile (2D) analysis gave more confidential results than areal (3D) characterisation. It was therefore suggested to detect and remove frequency-defined errors with a multi-threaded performance application. In the end, some guidance on how to use regular methods in the analysis of selected types of surface topographies following the reduction of both measurement (high-frequency noise) and data analysis errors was required.
Lane Mark Detection with Pre-Aligned Spatial-Temporal Attention
Authors: Chen Yiman , Xiang Zhiyu
Published: January 2022

Lane mark detection plays an important role in autonomous driving under structural environments. Many deep learning-based lane mark detection methods have been put forward in recent years. However, most of current methods limit their solutions within one single image and do not make use of the de facto successive image input during the driving scene, which may lead to inferior performance in some challenging scenarios such as occlusion, shadows, and lane mark degradation. To address the issue, we propose a novel lane mark detection network which takes pre-aligned multiple successive frames as inputs to produce more stable predictions. A Spatial-Temporal Attention Module (STAM) is designed in the network to adaptively aggregate the feature information of history frames to the current frame. Various structure of the STAM is also studied to ensure the best performance. Experiments on Tusimple and ApolloScape datasets show that our method can effectively improve lane mark detection and achieve state-of-the-art performance.
Child-Pedestrian Traffic Safety at Crosswalks—Literature Review
Authors: Deluka-Tibljaš Aleksandra , Šurdonja Sanja , Ištoka Otković Irena , Campisi Tiziana
Published: January 2022

Child pedestrians make up 30% of the total number of children injured in road traffic in the EU. They are a particularly vulnerable subgroup because they exhibit specific traffic behavior related to cognitive and physical development, sociodemographic characteristics, and environmental conditions. This paper provides an overview of research of parameters that affect the safety of children in the conflict zones of the intersection—crosswalks. The overview was undertaken targeting available research mostly conducted in the last 10 years all over the world, related to the identification of parameters that affect the safety of child-pedestrians, and models developed for the prediction of pedestrian and child-pedestrian behavior. Research conducted on various urban networks provides insight into locally and more widely applicable impact parameters connected to child characteristics and infrastructural and traffic elements, but also distractors (e.g., electronic devices) as new phenomena influencing children’s road safety. A review of pedestrian behavior-prediction models suggests that models are being developed for the general population, and models for children’s behavior, with specific parameters, are missing. For further research, more detailed analysis of the impact of distractors and of COVID–19 pandemic non-mobility, as well as an analysis of possible infrastructural solutions to increase children’s road traffic safety, is suggested.
Optimization of Wall Thickness Based on a Comprehensive Evaluation Index of Thermal Mass and Insulation
Authors: Yu Shenwei , Hao Shimeng , Mu Jun , Tian Dongwei
Published: January 2022

The thermal performance of buildings in the south of China focuses on thermal mass design, while in the north it favors thermal insulation design, which makes it impossible to achieve a balance between the thermal mass and insulation. Here, a comprehensive evaluation index is developed to measure the thermal performance of a building’s external envelope, which aims to find out the optimal range of the wall thickness under the influence of the thermal mass and insulation, and to seek the correct balance between a building’s energy consumption and the thermal performance of walls. In this paper, four dimensions, namely the heat transfer coefficient, thermal inertia index, attenuation degree, and delay time, are discussed, and the weight coefficients of each subfactor are calculated and isotropically treated to create comprehensive evaluation indicators. Then the distribution laws of the composite index values of common building materials in different climatic zones are examined. The result shows that the correlation coefficient (R2) between M and building energy consumption is about 0.7736–0.8215, which is higher than 0.3494–0.384, the heat transfer coefficient, and is more accurate in predicting building energy demands. Furthermore, through the analysis of the thermal improvement rate and the building energy-saving rate, the suitable wall thickness of commonly used building materials in different climate zones is determined, and the application prospects of the research results are described. With the above research findings, the thickness ranges of walls can be determined at the initial period of building design by combining regional environmental factors and material characteristics to provide a reference for building energy-saving design.
Assessment of Climate Change Impact on Snowmelt Runoff in Himalayan Region
Authors: Kumar Rohitashw , Manzoor Saika , Vishwakarma Dinesh Kumar , Al-Ansari Nadhir , Kushwaha Nand Lal , Elbeltagi Ahmed , Sushanth Kallem , Prasad Vishnu , Kuriqi Alban
Published: January 2022

Under different climate change scenarios, the current study was planned to simulate runoff due to snowmelt in the Lidder River catchment in the Himalayan region. A basic degree-day model, the Snowmelt-Runoff Model (SRM), was utilized to assess the hydrological consequences of change in the climate. The performance of the SRM model during calibration and validation was assessed using volume difference (Dv) and coefficient of determination (R2). The Dv was found to be 11.7, −10.1, −11.8, 1.96, and 8.6 in 2009–2014, respectively, while the respective R2 was 0.96, 0.92, 0.95, 0.90, and 0.94. The Dv and R2 values indicate that the simulated snowmelt runoff closely agrees with the observed values. The simulated findings were assessed under three different climate change scenarios: (a) an increase in precipitation by +20%, (b) a temperature rise of +2 °C, and (c) a temperature rise of +2 °C with a 20% increase in snow cover. In scenario (b), the simulated results showed that runoff increased by 53% in summer (April–September). In contrast, the projected increased discharge for scenarios (a) and (c) was 37% and 67%, respectively. The SRM efficiently forecasts future water supplies due to snowmelt runoff in high elevation, data-scarce mountain environments.
Wave Power Density Hotspot Distribution and Correlation Pattern Exploration in the Gulf of Mexico
Authors: Gu Chengcheng , Li Hua
Published: January 2022

Wave energy has been studied and explored because of its enormous potential to supply electricity for human activities. However, the uncertainty of its spatial and temporal variations increases the difficulty of harvesting wave energy commercially. There are no large-scale wave converters in commercial operation yet. A thorough understanding of wave energy dynamic behaviors will definitely contribute to the acceleration of wave energy harvesting. In this paper, about 40 years of meteorological data from the Gulf of Mexico were obtained, visualized, and analyzed to reveal the wave power density hotspot distribution pattern, and its correlation with ocean surface water temperatures and salinities. The collected geospatial data were first visualized in MATLAB. The visualized data were analyzed using the deep learning method to identify the wave power density hotspots in the Gulf of Mexico. By adjusting the temporal and spatial resolutions of the different datasets, the correlations between the number of hotspots and their strength levels and the surface temperatures and salinities are revealed. The R value of the correlation between the wave power density hotspots and the salinity changes from −0.371 to −0.885 in a negative direction, and from 0.219 to 0.771 in a positive direction. For the sea surface temperatures, the R values range from −0.474 to 0.393. Certain areas within the Gulf of Mexico show relatively strong correlations, which may be useful for predicting the wave energy behavior and change patterns.
Digital Folklore of Rural Tourism in Poland
Authors: Król Karol , Hernik Józef
Published: January 2022

Numerous development techniques and attributes that define the unique essentiality of archaic rural tourism websites in Poland have been identified. However, the use of e-folklore graphics on the websites heretofore has not been analysed. The paper’s objective is to identify forms of digital folklore found on archaic websites of rural tourism facilities functioning in Poland from 2000 to 2015. The analysed sample was 185 websites stored in the Internet Archive. The focal points were the dynamics of content presentation and the type of graphic components, including marquee text containers and GIFs. The use of characteristic graphics and digital stamps was recorded as well. The results fuel a discussion concerning potential reasons for deleting copies stored in digital archives. It is further concluded that all digital copies, even those far from being complete or perfect, contribute to the integrity of the digital ecosystem as a whole. Therefore, the process of archiving Internet content must not be exclusive. Therefore, any actions towards preserving the digital ecosystem for further investigation are reasonable.
Experimental Investigation of Water-Retaining and Mechanical Behaviors of Unbound Granular Materials under Infiltration
Authors: Li Ning , Tian Yuxiang , Ma Biao , Hu Dongxia
Published: January 2022

Unbound granular materials (UGM) in permeable pavement will experience large numbers of infiltration during their service-life. The frequently changed moisture not only affects the cooling effect of permeable pavement, but also influences the mechanical behaviors of UGM. However, evidence is lacking to state the influence of infiltration on the behaviors of UGM, which is commonly in fully permeable pavement. Considering the influence of infiltration, this study conducted experimental tests to investigate the effect on the water-retaining and bearing capacity of UGM. With the water-retaining tests, the water-retaining rate in the whole structure and at different depths was analyzed under different infiltration numbers and duration. The results showed that the water-retaining rate increased with the extension of the infiltration duration. The infiltration duration had a significant influence on the water-retaining capacity of UGM, while the infiltration number had little. The difference in the water-retaining rate between the top and bottom layers was up to 2.56%. The water-retaining capacity of the integrated structure was hardly affected due to the dissimilarity of the water-retaining rate at different depths. With infiltrations, the fine aggregate in the upside structure migrated downward to the lower structure, resulting in a reduction in water-retaining rate in the upper structure and an increase at the bottom. In addition, the mechanical behaviors were evaluated by the traditional California Bearing Ratio (CBR) and repeated CBR tests under five infiltrations. The first and second infiltration had a significant influence on the CBR of UGM. With two infiltrations, the plastic strain increased by 57.8% via the repeated CBR tests. The resilient strain had an increase by 36.52% and the equivalent modulus decreased by 28.7% with the first infiltration. The first infiltration presented a critical influence on the bearing capacity of UGM and the effect decreased with the increase in the infiltration number. These findings will enrich the behaviors investigation of UGM and promote its application in the fully permeable pavement.
Plant Diversity, Functional Group Composition and Legumes Effects versus Fertilisation on the Yield and Forage Quality
Authors: Šidlauskaitė Gintarė , Kemešytė Vilma , Toleikienė Monika , Kadžiulienė Žydrė
Published: January 2022

Elevating plant diversity and functional group composition amount in the swards may contribute to lower N fertiliser use. The excessive use of fertilisers in agriculture is one of the causes of environmental pollution issues. We investigated the effects of plant diversity, functional community composition, and fertilisation on the dry matter yield and its quality at the Lithuanian Research Centre for Agriculture and Forestry, Central Lithuania. The study aimed to determine the productivity potential of single-species and multi-species swards with three, four, six, and eight plant species in the mixtures including four grasses and four legumes. Two experimental backgrounds were used with N0 and N150 kg ha−1 yr−1 for all treatments. In the two-year experiment manipulating species richness and functional group diversity had a positive effect on the dry matter yield and produced better quality of the forage when compared with single-species swards. Crude protein in the forage of grass–legume mixtures was significantly greater than for grass monocultures. Investigating fertilisation background was a concern; it had a positive effect on the single-species sward yield but decreased the yield of multi-species swards.
Applying Federated Learning in Software-Defined Networks: A Survey
Authors: Ma Xiaohang , Liao Lingxia , Li Zhi , Lai Roy Xiaorong , Zhang Miao
Published: January 2022

Federated learning (FL) is a type of distributed machine learning approacs that trains global models through the collaboration of participants. It protects data privacy as participants only contribute local models instead of sharing private local data. However, the performance of FL highly relies on the number of participants and their contributions. When applying FL over conventional computer networks, attracting more participants, encouraging participants to contribute more local resources, and enabling efficient and effective collaboration among participants become very challenging. As software-defined networks (SDNs) enable open and flexible networking architecture with separate control and data planes, SDNs provide standardized protocols and specifications to enable fine-grained collaborations among devices. Applying FL approaches over SDNs can take use such advantages to address challenges. A SDN control plane can have multiple controllers organized in layers; the controllers in the lower layer can be placed in the network edge to deal with the asymmetries in the attached switches and hosts, and the controller in the upper layer can supervise the whole network centrally and globally. Applying FL in SDNs with a layered-distributed control plane may be able to protect the data privacy of each participant while improving collaboration among participants to produce higher-quality models over asymmetric networks. Accordingly, this paper aims to make a comprehensive survey on the related mechanisms and solutions that enable FL in SDNs. It highlights three major challenges, an incentive mechanism, privacy and security, and model aggregation, which affect the quality and quantity of participants, the security and privacy in model transferring, and the performance of the global model, respectively. The state of the art in mechanisms and solutions that can be applied to address such challenges in the current literature are categorized based on the challenges they face, followed by suggestions of future research directions. To the best of our knowledge, this work is the first effort in surveying the state of the art in combining FL with SDNs.
New Localized and Periodic Solutions to a Korteweg–de Vries Equation with Power Law Nonlinearity: Applications to Some Plasma Models
Authors: El-Tantawy Samir A. , Salas Alvaro H. , Albalawi Wedad
Published: January 2022

Traveling wave solutions, including localized and periodic structures (e.g., solitary waves, cnoidal waves, and periodic waves), to a symmetry Korteweg–de Vries equation (KdV) with integer and rational power law nonlinearity are reported using several approaches. In the case of the localized wave solutions, i.e., solitary waves, to the evolution equation, two different methods are devoted for this purpose. In the first one, new hypotheses with Cole–Hopf transformation are employed to find general solitary wave solutions. In the second one, the ansatz method with hyperbolic sech algorithm are utilized to obtain a general solitary wave solution. The obtained solutions recover the solitary wave solutions to all one-dimensional KdV equations with a power law nonlinearity, such as the KdV equation with quadratic nonlinearity, the modified KdV (mKdV) equation with cubic nonlinearity, the super KdV equation with quartic nonlinearity, and so on. Furthermore, two different approaches with two different formulas for the Weierstrass elliptic functions (WSEFs) are adopted for deriving some general periodic wave solutions to the evolution equation. Additionally, in the form of Jacobi elliptic functions (JEFs), the cnoidal wave solutions to the KdV-, mKdV-, and SKdV equations are obtained. These results help many authors to understand the mystery of several nonlinear phenomena in different branches of sciences, such as plasma physics, fluid mechanics, nonlinear optics, Bose Einstein condensates, and so on.
Mycelia-Assisted Isolation of Non-Host Bacteria Able to Co-Transport Phages
Authors: You Xin , Klose Niclas , Kallies René , Harms Hauke , Chatzinotas Antonis , Wick Lukas Y.
Published: January 2022

Recent studies have demonstrated that phages can be co-transported with motile non-host bacteria, thereby enabling their invasion of biofilms and control of biofilm composition. Here, we developed a novel approach to isolate non-host bacteria able to co-transport phages from soil. It is based on the capability of phage-carrying non-host bacteria to move along mycelia out of soil and form colonies in plaques of their co-transported phages. The approach was tested using two model phages of differing surface hydrophobicity, i.e., hydrophobic Escherichia virus T4 (T4) and hydrophilic Pseudoalteromonas phage HS2 (HS2). The phages were mixed into soil and allowed to be transported by soil bacteria along the mycelia of Pythium ultimum. Five phage-carrying bacterial species were isolated (Viridibacillus sp., Enterobacter sp., Serratia sp., Bacillus sp., Janthinobacterium sp.). These bacteria exhibited phage adsorption efficiencies of ≈90–95% for hydrophobic T4 and 30–95% for hydrophilic HS2. The phage adsorption efficiency of Viridibacillus sp. was ≈95% for both phages and twofold higher than T4-or HS2-adsorption to their respective hosts, qualifying Viridibacillus sp. as a potential super carrier for phages. Our approach offers an effective and target-specific way to identify and isolate phage-carrying bacteria in natural and man-made environments.
Extreme Pressures and Risk of Cavitation in Steeply Sloping Stepped Spillways of Large Dams
Authors: Matos Jorge , Novakoski Carolina Kuhn , Ferla Rute , Marques Marcelo Giulian , Dai Prá Mauricio , Canellas Alba Valéria Brandão , Teixeira Eder Daniel
Published: January 2022

Stepped spillways have been increasingly used to handle flood releases from large dams associated with hydropower plants, and it is important to evaluate the fluctuating pressure field on the steps. Hydraulic model investigations were conducted on three 53° (1V:0.75H) sloping and relatively large-stepped chutes to characterize the mean, fluctuating, and extreme pressures acting on the most critical regions of the step faces, near their outer edges. The pressure development along the chutes is presented, generally indicating an increase of the modulus of pressure coefficients up to the vicinity of the point of inception of air entrainment, and a decrease further downstream. The extreme pressure coefficients along the spillway are fitted by an empirical formula, and the critical conditions potentially leading to cavitation on prototypes are calculated. The correlation between the cavitation index and the friction factor is also applied for predicting the onset of cavitation on prototypes, and the results are compared with the pressure data-based method. Generally, the results obtained from those methods yield typical values for the cavitation index in the vicinity of the point of inception, varying approximately from 0.8 to 0.6, respectively. In light of these results, maximum unit discharges of about 15–20 m2/s are considered advisable on 53° sloping large-stepped spillways without artificial aeration, for step heights ranging from 0.6 to 1.2 m. For much higher unit discharges, a considerable reach of the spillway may potentially be prone to the risk of cavitation damage.
PRÁTICAS DE LEITURA COMO RECURSO DIDÁTICO NO ENSINO DA HISTÓRIA LOCAL
Authors: Nascimento Ricardo Rodrigues , Cavalcanti Givaldo , Bueno João Batista Gonçalves
Published: January 2022

O presente artigo partiu da verificação de que os estudantes do ensino fundamental da Escola Estadual de Ensino Fundamental Professor Rangel (Ingá-PB) têm dificuldades de leitura e escrita. Por outro lado, entendemos que o estudo dos conteúdos históricos, realizado pela disciplina de História, contribuiu para a melhora das condições de ensino dessa escola básica. Por meio do estudo dessa área de conhecimento, pode-se produzir ações de leitura que estabeleceram relações entre fatos que ocorrem no presente com os ocorridos no passado. Entendemos que o processo de contextualização no cotidiano dos alunos na relação com as narrativas de memórias possibilitou, também o surgimento de práticas de leitura criadoras e inventivas, as quais tiveram um caráter multidimensional. Em relação aos aportes teóricos que utilizamos para o desenvolvimento desta pesquisa, destacam-se as concepções dos seguintes autores: W. Benjamin; José Carlos Reis; Maria Carolina B. Galzerani e Circe Bittencourt. Palavras-chave: Ensino de História. Leitura. Narrativas de memória.
PROBLEMS OF THE ECONOMIC SUSTAINABILITY OF CANADIAN ARCTIC REGIONS
Authors: Podoplekin Andrey
Published: January 2022

The article examines the key issues and risks of the governing and socio-economic development of the Canadian Arctic regions. The relevance of this subject is determined by scientific and practical interest in adapting in Russia the most effective approaches and practices for realizing the economic potential of circumpolar regions in foreign countries. With regard to areas of the Arctic zone of the Russian Federation (characterized by low population density of vast areas, the absence of large urban settlements with scientific and cultural centers, undeveloped ground transport infrastructure, extreme climatic and geological conditions, the absence of large industrial and energy facilities) special interest represents the relevant Canadian experience. The article shows that in the 2000s, Canada did not come close to turning industry into a leading factor in the economy of the Arctic territories. At the same time, a series of federal programs for the modernization of social and transport infrastructure also did not become a significant incentive for the development of the northern regions. As federal statistics shows, the largest share of their GRP is still formed in the public sector, and the degree of diversification of the regional economy remains extremely low. The modern economy of the circumpolar Canada is based on the dominance of the state in investments and stimulating consumer demand. The consequence of this is an increase in wages, provoking an increase in the cost of all goods and the cost of living in general. Small businesses are unable to compete with the public sector for labor, which constrains private entrepreneurship. For Canada, the Arctic has not yet become the driver of national economic growth, and the lack of infrastructure is a serious obstacle to large-scale investment.
Protagonismo e Juventude: a extensão universitária em evidência
Authors: Bastos Ferreira Tavares Natália , da Silva Filho José Adelmo , Rodrigues de Oliveira Vinicius
Published: January 2022

A extensão universitária é constitucional e traz como um princípio a indissociabilidade entre ensino, pesquisa e extensão. Esta obra, PROTAGONISMO E JUVENTUDE: a extensão universitária em evidência, é científica, educativa, cultural e política, e tem em sua natureza a interlocução dos atores acadêmicos com os diversos setores da sociedade na produção de saberes e fazeres, conduzida por jovens protagonistas e mestres sonhadores, cujos sonhos vão além de uma força de trabalho, mas se representam como utopia de vida! Os capítulos permitem ao leitor (re)conhecer como a universidade tem um propósito social, como ela é capaz de transformar a coletividade, inexoravelmente, costurando uma nova forma de vida a cada geração.
Analysis of MSME Players of Creative Economy Culinary Subsector in Bengkalis City
Authors: Ningsih Julia , Junita Raflah Wan
Published: January 2022

This study aims to determine what Kinds of Culinary ,characteristics ,creativity, and the Structure-Conduct-Performance (SCP) approach. This study used a qualitative descriptive method with the object of research on MSME players. The sampling technique of this study used a stratified random sample method with a total of 40 samples. Data collection techniques in this study using documentation and interview methods. The results of this study 50% of MSME players are 41-50 years old, 47,5% MSME players have a high school background as their last education, 27.5% have been in business for 1-2 years. Based on the SCP approach, the culinary business model in Bengkalis City  is independent, MSME players in Bengkalis City set prices looking at price information from competitors, in promotion tools 75% of MSME players put in stalls and the performance of MSME players is 32.5% monthly income ranges from IDR 2.000.000 - IDR 5.000.000
Analysis of Customer Satisfaction Level on International Departure Terminal Waiting Room Facilities at Sultan Syarif Kasim II International Airport
Authors: Runnisa Chai
Published: January 2022

The waiting room facilities service is very important to increase comfort and increase customer satisfaction. Improving services in terms of waiting room facilities needs to be done from time to time because the dynamic nature of customers and because of any customer tendency that wants to get something more and different. The research objective that wants to be achieved in this study is to know how the international departure terminal waiting room facilities at Sultan Syarif Kasim II International Airport influence on the customer satisfaction level. In this study, the population of the research is the users of the Sultan Syarif Kasim II International Airport flight services, especially the international departure terminal. The obtained research result has shown that the formulated hypothesis in proven that the international departure terminal waiting room facilities at Sultan Syarif Kasim II International Airport have a positive and significant influence on the customer satisfaction level.
REDESAIN SALURAN DRAINASE DENGAN EFISIENSI BALOK MELINTANG (Studi Kasus Proyek Peningkatan Jalan Bengkalis - Perapat Tunggal (Dak))
Authors: Sahru Iis , Alamsyah Alamsyah , Tifani Efan
Published: January 2022

Banyak saluran drainase yang telah dibangun di Kabupaten Bengkalis. Salah satunya adalah proyek perbaikan jalan pada jalan Bengkalis menuju ke PerapatTunggal, saluran drainasenya dirancang dengan skor balok melintang yang rapat sementara beban yang ditahan hanya beban tekanan tanah, sedikit beban matidan beban hidup. Untuk mengetahui tekanan tanah samping pada saluran dilakukan uji hand-boring.  Perhitungan beton bertulang dilakukan setelahmendapatkan gaya dalam akibat beban. Perhitungan struktur mengacu ke SNI 03-2847-2002.  Dari perhitungan balok melintang yang dibebani beban sentris,diperoleh gaya aksial (Pu) 227,05 kN. Sedangkan dari pemodelan dan analisis balok dengan menggunakan SAP2000 menggunakan tekanan tanah, didapat nilaigaya axial sebesar 9,796 kN dengan jarak 2,5 m. Dari hasil ini dapat disimpulkandengan jarak balok melintang 2,5 meter sangat aman.Perhitungan skor balokdengan jarak 5 m, balok masih aman dengan Pu 19,462 kN.
PENENTUAN JENIS TIKUNGAN DAN EVALUASI GEOMETRIK JALAN STUDI KASUS : JALAN TANJUNG KAPAL – DARUL AMAN KECAMATAN RUPAT
Authors: Aldi M. Hafis , Idham Muhammad
Published: January 2022

Pembangunan jalan akan dilakukan di jalan desa Tanjung Kapal menuju Darul Aman Kecamatan Rupat Kabupaten Bengkalis merupakan akses masyarakat untuk menjalani aktivitas perkebunan, perekonomian, dan pendidikan dengan panjang jalan 11,2 km dan terdapat 15 tikungan.  pembangunan ini dilakukan melalui dana alokasi khusus (DAK) Kabupaten Bengkalis. Perhitungan dan analisis geometrik ini menggunakan TPGJAK 1997 dengan menanalisis alinyemen horizontal jalan sesuai dengan kondisi lapangan.Hasil analisis dan evaluasi geometrik jalan dengan panjang 11,2 Km dengan kecepatan rencana 70 km/jam dan lebar jalan 6meter, didapatkan bahwa 11 tikungan Spiral – Circle – Spiral (S-C-S) dan 4 tikungan termasuk kedalam tikungan Full Circle (F-C) dengan superelevasi maksimum : T1=8%, T2=6.7%, T3=7%, T4=8.7%, T5=7.5%, T6=9.5%, T7=7.7%, T8=7.3%, T9=7.2%, T10=7.5%, T11=8.5%, T12=6.7%, T13=7.5%, T14=7.6%, T15=7%, jarak pandang henti didapatkan 51.35 meter, jarak pandang menyiap didapatkan 421.95 meter.
PERANCANGAN PELEBARAN SIMPANG JALAN ANTARA-GATOT SUBROTO KOTA BENGKALIS
Authors: Adha Zulia , Guswandi Guswandi
Published: January 2022

Persimpangan Jalan Antara-Gatot Subroto kota Bengkalis merupakan salah satu persimpangan di kota Bengkalis yang memiliki arus kendaraan yang cukup ramai. Namun kondisi jari-jari tikungan kecil di lengan Timur yaitu hanya 5,1 m yang menyebabkan kendaraan khusunya roda empat untuk membelok, ini mengakibatkan lambatnya gerak kendaraan dipersimpangan tersebut. Untuk mengatasi permasalahan itu maka diperlukan perancangan ulang persimpangan, penataan ulang bangunan pelengkap dan perlengkapan kemudian memperhitungkan biaya yang diperlukan untuk pekerjaan tersebut. Pekerjaan ini bertujuan untuk meningkatkan kenyamanan dan keamanan bagi pengguna Jalan yang melewati persimpangan tersebut. Dalam merencanakan persimpangan tersebut mengacu pada PKJI 2014 untuk mengevaluasi kinerja persimpangan, sedangkan untuk geometriknya mengacu pada RSNI T-14-2004 B dan Tata Cara Perencanaan Persimpangan Sebidang Pd. T-02-2002-B, perencanaan biaya mengacu pada AHSP 2016.Berdasarkan hasil hitungan kinerja persimpangan yang mengacu pada PKJI 2014 didapat nilai derajat kejenuhan lengan Timur tahun 2020 yaitu 0,972, tahun 2030 yaitu 1,558. Setelah direncanakan pelebaran pada lengan Timur, didapat nilai derajat kejenuhan 0,7792. Adapun biaya pekerjan pelebaran simpang tersebut sebesar Rp. 732.479.833.
PERANCANGAN TEBAL PERKERASAN KAKU JALAN SUNGAI LINAU MENUJU BANDAR JAYA
Authors: M.Asri M.Asri , Idham Muhammad
Published: January 2022

Sebuah jalan antara Sungai Linau Jalan menuju Bandar Jaya merupakan jalan akses yang menghubungkan dua desa. Kondisi jalan eksisting rusak dan tidak layak layani lalu lintas perkotaan. Makalah ini bertujuan untuk merancang ketebalan perkerasan menggunakan data lalu lintas harian rata-rata dan daya dukung pondasi tanah. Berdasarkan Pd T-14-2003 dan metode Manual Desain Perkerasan Jalan untuk metode tahun 2017 diperoleh tebal pelat beton 180 mm dengan waktu pengerjaan selama 150 hari kalender. Namun, ada perbedaan biaya antara dua standar untuk diterapkan pembangunan jalan, yaitu Rp. 1.840.670.000 lebih mahal jika menggunakan metode Manual Desain Perkerasan Jalan untuk metode 2017.
Training of competences in Entrepreneurship and collaboration between students of different disciplines and degrees of the University of Guadalajara, based on their school projects. Rapporteurship of experience
Authors: Hernández-Tinoco Araceli , Guzmán-Díaz José Cruz , Reyes-Rodríguez Mónica Araceli , Cervantes-Guzmán Jovanna Nathalie
Published: January 2022

The results of experiences of the link in order to motivate entrepreneurship between students of two different careers are reported. Food science develops, characterizes and validates a food and marketing makes its business plan. And the Master of Law supports the working relationship with confidentiality letters, advice for product protection and collaboration contract, in case both students decide to continue together in incubation towards a company. The information used for this work was obtained from the anecdotal experiences documented during the work with the students during the 2019B, 2020A and 2020B school cycles. Students' comments were retrieved from the comments they left on their teacher evaluations at the end of the semester. The participating students valued the experience very much and learned new things that in their career they do not normally receive. Relating to other disciplines enriches and fosters new ideas, new relationships and the best results of any project. It lets them see how, their project, seen with different eyes can offer greater and better advantages. From the legal part, they live it, not only study it. And new forms of interaction-experience are proposed that add for their professional training
The impact of research results on art education
Authors: Juan-Carvaja Mara Lioba , Juan-Carvajal Dargen Tania , Vdovina María
Published: January 2022

Music teaching today represents a greater effort compared to previous eras. Before, quality and rigor, combined with ideas, resources, techniques and emotions were shared, inside or outside of the school environment. Currently, the same process is accelerated: the considerable number of research in, about and in favor of art, joined with technological impact, and the existence of social networks, activates informational exchange, and causes contrasts that require higher creativity from the teacher in order to offer tools for the student to qualify the cumulus of information at their grasp. This is made possible by integrating teaching with research, a popular theme in education-related events; which constitutes the objective of this work: to popularize alternatives for the achievement of the possibilities the research process offers in music teaching. The analytic-sinthetical metod, the life history method, documental analysis method and interview were combined from a qualitative standpoint, which was conducive to a multilateral study of the composer and his creativity's developmemt, and also to the activities' design, and the search for information. Ideas and experiences about the potential of research for art education, plus extracurricular activities designed and based on the research are therefore offered.
Monitoring system of vital signs at distance and in real time through IoT Technology
Authors: González-Lorence Armida , Ayala-Landeros José G , Amaya-Pérez Angélica, J , Sánchez-Orduña Govani G.
Published: January 2022

This article presents the architecture, design and development of an Internet of Things (IoT) tool that performs remote and real-time monitoring of immunosuppressed terminally ill patients, who have been sent home by their doctors to wait the time of death, however, these patients usually are cared by the useful but unexperienced hands of their relatives. This tool aims to facilitate communication between the attending medic and the relative who takes care of the patient, it promotes the patient’s comfort and accurate care using sensors, devices and mobile applications linked to each other. The methodology includes: the patient’s characterization, in order to identify their requirements and characteristics that distinguish them; existing medical sensor’s study and selection of the necessary ones. Subsequently, signals acquisition and compatibility effected for the selected sensors, and finally, the tool’s design includes: Selected sensors, controllers, server, translator, databases and web application.
Vocational Decision Making and Anxiety during the Coronavirus 19 Pandemic
Authors: Lozano-Gutiérrez Jorge Luis , Pacheco-Amigo Beatriz Mabel , Solís-Recéndez Emma Perla , Rodríguez-García Francisco Javier
Published: January 2022

Vocational decision making and anxiety during the coronavirus pandemic. The objective of this research is to identify the relationship between vocational decision making and anxiety during the coronavirus pandemic. The study is descriptive, cross-sectional, non-experimental, correlational. The study subjects are high school students who are at the time of making a vocational decision. The students were selected using the snowball technique since they were not in the classrooms of educational institutions during the semester period from January to July 2021. The variables of the study are vocational decision-making and anxiety in times of coronavirus pandemic. The reliability of the evaluation instruments such as the Herrera and Montes Interests and Aptitudes Questionnaire and the Beck anxiety test were obtained. Locating the correlation between the variables. The SPSS statistical package was used for data analysis. The obtained results, in terms of the reliability of the instruments that place them on a Cronbach's Alpha, are between .8 and .9 each of them. The main conclusion is that the relationship between anxiety and vocational decision is not important for vocational decision making since anxiety during the coronavirus pandemic does not affect vocational decision.
COVID-19 pandemic: Virtual technology applied to higher education at CU UAEM Valle de México and Ecatepec
Authors: Ruiz-Reynoso Adriana Mercedes , Ramírez-Cortes Verónica , Herrera-Hernández Héctor
Published: January 2022

One of the most important challenges in the education system are the technological advances in the educational models at a higher education, achieving a transformation of the student's thinking, in an approach of analysis and innovative construction based on interdisciplinary processes and creativity. The Autonomous University of the State of Mexico is aware that its teachers must have a comprehensive training in communication and creativity with a social and humanistic commitment with transcendence of technological research. Due to COVID-19, pandemic caused by an infectious virus that produced a total closure of educational facilities, in which the only teaching alternative is online, this technology has been integrated by necessity to the educational system with a different pedagogical approach, which has been questioned by the type of knowledge acquired by students. Finally, this research awareness among the teachers of Valle de México and Ecatepec that they must face the challenges in the use of virtual technology.
Pharmacoeconomic models in rheumatology
Authors: Tachkov Konstantin , Boyadzhieva Vladimira , Mitkova Zornitza , Stoilov Nikolay , Petrova Guenka
Published: January 2022

Pharmacoeconomic models of chronic diseases explore the development of the disease, patients’ pathways through it and calculate the cost-effectiveness of the therapy with different medicines. The goal of the current study is to identify the pharmacoeconomic models used in rheumatology, their historical development and utilization. Systematic search in PubMed was performed with key words „pharmacoeconomic, models, rheumatology, and cost-effectiveness “. On total 58 manuscripts were identified, describing mainly the rheumatoid arthritis development. The first one in line is the ACCES model of rheumatoid arthritis which have been validated in Sweden, Norway, etc. This is one of the first Markov model in rheumatology. Biological medicines are in the primary area of interest for modelling their therapeutic results. During the latest year scientists are working for the development of the web based platform to forecast the biological therapy (model PREDIRA). In alliance with other therapeutic areas with the development of artificial intelligence the pharmacoeconomic models is expected to increase, especially those build with data from real world clinical practice.
COVID-19 IN AUTOIMMUNE RHEUMATIC DISEASES - FREQUENCY, COURSE, EFFECTIVENESS AND COMPLICATIONS IN VACCINATION
Authors: Dimova Zhaklin , Boyadzhieva Vladimira , Stoilov Nikolay , Monov Simeon , Stoilov Rumen
Published: January 2022

The onset of the pandemic caused by the new coronavirus has raised many questions in the global rheumatology society regarding the clinical course of the disease, effectiveness and complications of SARS-SoV-2 vaccination. The aim of this review is to analyze the information available up to date on the course of COVID-19 in patients with autoimmune rheumatic diseases (ARD), the frequency of complications in these patients, the effectiveness and side effects of vaccination against COVID-19. Various studies in Europe and the United States have found that the risk of severe COVID-19 in patients with ARD is similar to that in the general population. Negative prognostic factors are thought to be old age, comorbidity, moderate / high ARD activity, and corticosteroid (CS) intake at doses> 10 mg / day. Patients with systemic ARD are considered to be at higher risk of thromboembolic events due to chronic inflammation and / or the presence of antiphospholipid syndrome, as well as the nature of COVID-19 - an endothelial lesion causing thrombosis and microangiopathy. It is observed a higher risk of severe pneumonia in patients treated with Rituximab, as well as an increase in hospitalizations and deaths amongst them. The opposite trend is observed in patients treated with anti-TNF. With the development of vaccines against COVID-19, questions arise about their effectiveness in patients with ARD, as well as the frequency of complications associated with them. In these studies, slightly lower levels of neutralizing antibodies were observed in patients with ARD compared to the general population, most commonly associated with Methotrexate or targeted synthetic DMARDs. The most common side effects seen in these patients after vaccination are pain at the injection site, fatigue and headache. Complaints of the musculoskeletal system are more common in patients with ARD than in the general population. Exacerbations of the underlying disease following vaccination, requiring hospitalization, are rare.
Kajian Literatur Uji Aktivitas Antikanker Payudara Tanaman Ranti (Solanum nigrum Linn.) Secara in vitro dan in vivo
Authors: Nurmaulawati Rina
Published: January 2022

Pengujian in vitro dan in vivo adalah serangkaian uji yang dilakukan untuk menentukan apakah suatu produk layak, berkhasiat, dan aman digunakan sebagai obat. Kajian literatur ini bertujuan memberikan sistematik review aktivitas antikanker payudara (Solanum nigrum L.) meliputi bagian tanaman, pelarut, cara ekstraksi, serta mekanisme molekuler zat aktif secara in vitro dan in vivo. Metode kajian literatur adalah metode prisma dengan tahapan penentuan topik, penentuan rumusan masalah, pengumpulan data dari jurnal penelitian hasil penelusuran melalui google scholar dengan kata kunci cytotoxicity Solanum nigrum L. as anti-breast cancer in vitro and in vivo, menganalisis data dalam bentuk kelompok tabel, mengekstraksi data sesuai kriteria inklusi dan menarik kesimpulan sesuai rumusan masalah. Daun, batang, buah matang, buah mentah dengan ekstraksi, perkolasi, dan shokletasi menggunakan pelarut air, etanol, n-heksan, dan etil asetat memiliki aktivitas antikanker payudara. Senyawa dan golongan senyawa aktif yang berperan sebagai antikanker payudara pada Solanum nigrum L. adalah alkaloid, steroid, flavonoid, tanin, karbohidrat, dan saponin, polisakarida rhamnosa, glukosa dan galaktosa, fenolik, kumarin, asam gentisik, luteolin, apigenin, kaempferol, m- asam kumarat, antosianidin, alfa solanin. Mekanisme molekuler zat aktif ekstrak Solanum nigrum L. sebagai agen kemoterapi diantaranya sebagai antioksidan, menginduksi apoptosis, menginhibisi proliferasi, dan menstimulasi respon imun, menginduksi aktivitas fagositosis. Kata kunci : Antikanker payudara, Solanum nigrum L., in vitro in vivo.