Miracle-dz/UniFAR-FTUs huggingface dataset:
Application of oil-hydraulic actuator for active suspension of railway vehicle: experimental study

The application of oil-hydraulic actuators for active suspension of railway vehicles has been examined experimentally by using a 3-DOF half-vehicle model. The LQG control law was adopted, in which state variables were estimated from measurable ones on the actual railway vehicle. The results show the possibility that the controllable frequency range extends with the oil-hydraulic actuator. The addition of bogie acceleration measurement to body related measurement provides a significant advantage for the performance. When actual body weight becomes lighter than that of the controller design value, the control performance and the stability deteriorate. Therefore, it is recommended to use the empty car body weight for design of the active suspension controller. The control effect can reach to the maximum vibration isolation level by shortening the sampling period to 2 ms.
Transrectal Ultrasound Prostate Volume Correlation with Serum Prostate Specific Antigen Level in Patients with Prostatic Enlargement in Portharcourt

Background: Prostatic enlargement is common among aging men which is associated elevation of serum prostate specific antigen (PSA) level. Prostatic enlargement could be due to benign prostatic hypertrophy, prostatitis, or prostatic neoplasms. Aim: The aim of this study is to determine transrectal ultrasound prostate volume (TPV) correlation with serum prostate specific antigen level in patients with prostatic enlargement. Subjects and Methods: One hundred and forty-three (143) males referred for ultrasound prostate evaluation with clinical diagnosis of prostatic enlargement that fulfill the study criteria were studied, using LOGIQ P6 PRO GE Healthcare machine fitted with 10MHz transrectal probe while the PSA level was estimated by Enzyme Immunoassay using DIAGNOSTIC INC PSA KIT. The blood samples were collected before the ultrasonic evaluation. The anterio-posterior, transverse and cranio-caudal diameters of the prostate gland were obtained and the prostate volume generated by the ultrasound machine. The data collected was analyzed using SPSS windows version 21.0 statistical software. Correlation between variables was determined using Pearson correlation coefficient and linear regression analysis. Results: The mean (Mean+SD) transrectal Prostate Volume (TPV) and serum PSA levels were 66.13+30.43cm 3 and 8.50+3.95ng/ml respectively. Pearson’s Correlation between TPV and Serum PSA level gave a correlation coefficient (r) of 0.809 ( pvalue of 0.01). TPV and Serum PSA concentrations did not show correlation with Body Mass Index. Conclusion: This study showed a significant correlation between transrectal prostate volume and serum PSA concentration in patients with prostate enlargement. Therefore, TPV can be used as alternative method of estimating serum PSA concentration where direct measurement is absent.
Non-linear Response of the Track

SUMMARY This paper describes a non-linear static model of the railway superstructure. Committee ERRI D 170 used the model presented for investigation of fastening behaviour. This model was also used for design of the new type of concrete sleeper and clip for the Czech Railway. The concept of the mathematic model includes the following assumptions: (a) the ballast has nonlinear physical properties, (b) there are gaps between sleepers and ballast, (c) the fastening is a complicated system with very non-linear resistance, (d) the track is loaded by the lateral wheel forces and vertical wheel forces which are applied to the rail head with a certain eccentricity. The assumption (a) leads to Pasternac's model of the sleeper foundation with generally non-linear Winkler's part. The assumption (b) forces solution of the contact problem between sleeper and gravel bed. The contact area is continuously varying during loading process of the sleeper. The solution of the contact problem is based on variational approach.
Shape optimization of the airfoil comprising a cross flow fan

Purpose – Fanwing airfoil is a new lift‐generating section invented in 1997 by Patrick Peebles. The early shape of the airfoil has not changed until now. So far, no research has been done to change or modify the airfoil shape in order to improve its aerodynamic performance. In this paper, possibility of changing the airfoil shape to improve its aerodynamic performance is studied. For this purpose, six different geometric shapes of the airfoil are investigated numerically to determine the best airfoil on the basis of lift and drag coefficients. Flow over the airfoil is solved by developing a computational fluid dynamics (CFD) code. The purpose of this paper is to find a more efficient configuration for the Fanwing airfoil with lower power consumption and better performance.Design/methodology/approach – Flow over the airfoil is investigated by CFD. At the airfoil solid walls, the no slip condition is applied. Re‐Normalization Group k‐e model is used for turbulence modeling. The pressure‐velocity coupling is.
Calculating stress of external prestressing tendons

This paper presents a simple method to calculate the increase in stress of the external prestressing tendons used to strengthen the concrete beams at any loading. First, the previous equations used to calculate stress of unbonded or external prestressing tendons are briefly reviewed, and then a new design method is proposed by considering deformation of the member. The steps of this method are simple and can be used for any loading. Experimental results obtained from several sources are compared with those calculated using the proposed method and the Harajli, Naaman et al., ACI-318 and BS 8110 code equations. The proposed equation showed good agreement and better accuracy.
DESENVOLVIMENTO DE IOGURTE TIPO SUNDAE SABOR MARACUJA FEITO A PARTIR DE LEITE DE CABRA

The aim of this study was to evaluate the viability of goat milk in the manufacture of yogurt as an alternative to the consumption of dairy products produced with cow's milk. Two yogurts were manufactured by varying the raw milk base: goat milk and cow's milk. The variables evaluated were pH, acidity (% lactic acid), fat and texture profile analysis (hardness, chewiness, cohesiveness and gumminess). In sensory evaluation, the acceptance tests were conducted in two sessions, in which we assessed the overall impression of samples. In the first session panelists (n=50) evaluated the samples coded with random three-digit numbers (blind test), ie, they had no information about the yogurt were evaluated, in the second session, the sample was served with information (goat's milk yogurt). The data were statistically analyzed using analysis of variance (ANOVA). For comparison of means we used the Tukey test. The physical and chemical analysis showed high similarity in the variables studied between the yogurts made with goat milk and cow's milk. However, the yogurt from cow's milk had a higher fat content (p<0.05). Both yogurts had similar texture profile. The sensory analysis revealed the same acceptance for both types of yogurt. The information "made with goat milk" did not influence the acceptance of the respective yogurt. It is concluded that the production of yogurt sundae like flavored with passion fruit is a viable alternative to the marketing of dairy products derived from goat milk.
Cyclic Loading Test of Unbonded and Bonded Posttensioned Precast Segmental Bridge Columns with Circular Section

Four 1/4-scale precast segmental bridge columns (PSBC) with different reinforcement types and arrangements and one monolithic reference column (MRC) were designed and tested under cyclic quasi-static loading. Both UPC (PSBC with unbonded tendons only) and UPCE (PSBC with unbonded tendons and bonded mild steel bars) use unbonded posttensioned (PT) strands to connect the segments. Bonded energy dissipation (ED) bars were added in UPCE to increase the ED ability of unbonded PSBC. Specimens BPC (PSBC with fewer bonded PT bars) and BPCII (PSBC with more bonded PT bars) use bonded PT bars to combine the segments together. The unbonded length was set in ED bars to delay the low-cycle fatigue damage. Test results showed PSBC only has minor concrete cracks or crushing at lower joints. The unbonded PT PSBC with ED bars had higher lateral strength, lower residual drift, and comparable ED with MRC. The bonded PT bar PSBC with appropriate bar arrangement also showed high lateral strength and medium energy-dissipation ability. However, bonded PT PSBC experienced large PT stress loss, which leads to a residual drift of 3% when unloading from 6% drift.
Process Control for Sheet-Metal Stamping: Process Modeling, Controller Design and Shop-Floor Implementation

Process Control for Sheet-Metal Stamping presents a comprehensive and structured approach to the design and implementation of controllers for the sheet metal stamping process. The use of process control for sheet-metal stamping greatly reduces defects in deep-drawn parts and can also yield large material savings from reduced scrap. Sheet-metal forming is a complex process and most often characterized by partial differential equations that are numerically solved using finite-element techniques. In this book, twenty years of academic research are reviewed and the resulting technology transitioned to the industrial environment. The sheet-metal stamping process is modeled in a manner suitable for multiple-input multiple-output control system design, with commercially available sensors and actuators. These models are then used to design adaptive controllers and real-time controller implementation is discussed. Finally, experimental results from actual shop floor deployment are presented along with ideas for further improvement of the technology. Process Control for Sheet-Metal Stamping allows the reader to design and implement process controllers in a typical manufacturing environment by retrofitting standard hydraulic or mechanical stamping presses and as such will be of interest to practising engineers working in metal-working, automotive and aeronautical industries. Academic researchers studying improvements in process control and how these affect the industries in which they are applied will also find the text of value.
5E ÖĞRENME MODELI VE İŞBİRLİKLİ ÖĞRENME YÖNTEMİNİN BİYOLOJİ DERSİ TUTUMUNA ETKİSİ

The aim of this study is to research the effect of the 5E learning model and cooperative learning method on attitude in biology lesson. In 2010-2011 school year 93 students who were in 3nd grade science field at Ankara Cankaya Milli Piyango Anadolu High School constituted the work group of the study. “Heredity, Genetic Engineering and Biotechnology” unit were worked by 5E learning model at 1th experimental group, by cooperative learning at 2th experimental group and by traditional teaching method at control group. Data were collected by applying biology attitude scale at the beginning and the end of the investigation. The following results were obtained from this study: It has been emphasised that there is a meaningful difference between 5E learningmethodandcooperativelearningmethodwithtraditionallearning. It has been proved that 5E learning method is the best education model in terms of the students\' attitudes towards the biology lessons.
E Lauhoe Mai Na Wa'a: Toward a Hawaiian Indigenous Education Teaching Framework.

correspondence may be sent to: Shawn Malia Kanayiaupuni, Public Education Support, Kamehameha Schools 567 South King Street Suite 300, Honolulu, Hawaiyi 96813 Email: shkanaia@ksbe.edu The desire to improve educational delivery and outcomes has prompted significant advancements in culture-based education as a foundation for community-driven, place-based, relevant educational approaches that more effectively engage children and their families in lifelong learning and leadership. This article shares the early process and tools of a large-scale, community-participatory project developed to understand the use of culture-based teaching strategies in Hawai‘i and associated outcomes for students (7th–10th grade). Specifically, this work documents the initial planning and theoretical development that resulted in a Hawaiian Indigenous Education Rubric (HIER) from a teaching perspective. The HIER tool provides a building block in our efforts to understand what indigenous education looks like in the teaching environment and is shared here to encourage further research and development. Future publications will document the results of the broader project based on teacher and student data.
Some evidence that seasonal malaria chemoprevention with SPAQ did not have effect on antibodies response against pre-erythrocyte stage but on the blood-stage in Niger.

Background: In endemic areas, children develop slowly and naturally anti-Plasmodium antibodies and become semi-immune. Seasonal Malaria Chemoprevention (SMC) with sulfadoxine-pyrimethamine + amodiaquine (SPAQ) is a new strategy to reduce malaria morbidity in young children in West Africa. However, SMC may impact on the natural acquisition of anti-Plasmodium immunity. We evaluated the effect of SMC with SPAQ on malaria antibodies levels in Niger. Methods: This survey was conducted in areas with SMC since 2014 (Zinder district), without SMC (Dosso district) and with one year SMC 2016 (Gaya district). To assess the relationship between SMC and total Ig G Ab against P. falciparum antigens, we measured antibodies levels of two P.falciparum asexual stage vaccine candidate antigens (Circum Sporozoid Protein and Glutamate-rich Protein R2) in children aged 3–59 months and compared these levels in Zinder, Dosso and Gaya by enzyme-linked immune-sorbent assay (ELISA) on the elution extracted from the RDTs positive and negative cassette. Results: A total of 229 children aged 3-59 months were included in the analysis: 71 in Zinder, 77 in Dosso, and 81 in Gaya. In Zinder (CSP=17.5 and GLURP-R2=14.3) median antibodies levels observed were higher than in Gaya (CSP=7.7 and GLURP-R2=6.5) and Dosso (CSP=4.5 and GLURP-R2=3.6) (p<0.0001). Conclusion: We have some evidence in this study that suggest SMC with SPAQ did not have effect on antibodies response against pre-erythrocyte stage but on the blood-stage. Future studies are necessary to provide better understanding of SMC effect on malaria immunity.
Understanding Consumers’ Sentiment Expressions in Online Reviews: A Hybrid Approach

Abstract This study explores consumers’ sentiment and its influencing factors in the context of theme parks by analyzing online reviews. A hybrid approach is employed, including sentiment analysis, logistic regression analysis, and co-occurrence network analysis. The findings provide new insights on the sentiment expression of consumers in different regions, that is, Australian consumers express significantly more positive sentiment than US consumers. In addition, the results reveal the crucial experiential factors causing positive and negative sentiment. This study not only contributes to the understanding of consumers’ review behavior and eWoM but also provides a reference for the application of data driven approach in intelligent marketing and management.
Fasergekoppeltes In-situ-Laserspektrometer für den selektiven Nachweis von Wasserdampfspuren bis in den ppb-Bereich (Fibre-Coupled In-situ Laser Absorption Spectrometer for the Selective Detection of Water Vapour Traces down to the ppb-Level)

Abstract Ein neues, glasfasergekoppeltes In-situ-Absorptionsspektrometer auf Basis von Nah-Infrarot(NIR)-Diodenlasern eröffnet im Hinblick auf den in Industrie und Forschung bedeutenden In-situ-H2O-Nachweis neue Möglichkeiten, da es erstmals auch in mehrphasigen Gasströmungen die schnelle, selektive, probennahme- und kalibrationsfreie Feuchtemessung gestattet. Aufwändige Tests in der cryogenen Aerosolkammer AIDA ermöglichten mit einer gefalteten Absorptionstrecke von 82 m selbst in dichten Eiswolken eine Nachweisgrenze von 15 ppb (1σ, Δt = 2 s) und demonstrierten gleichzeitig die erste präzise Bestimmung der dynamischen Übersättigung der Gasphase während der Wolkenbildung.
Percolation effect in thick film superconductors: Using a Bi(Pb)SrCaCuO based paste to prepare a superconducting planar transformer

A thick film superconductor paste has been developed to study the properties of granulated superconductor materials, to observe the percolation effect and to confirm the theory of the conducting mechanism in the superconducting thick films. This paste was also applied to make a superconducting planar transformer. Due to the T(sub c) and advantageous current density properties the base of the paste was chosen to be of Bi(Pb)SrCaCu system. For contacts a conventional Ag/Pt paste was used. The critical temperature of the samples were between 110 K and 115 K depending on the printed layer thickness. The critical current density - at the boiling temperature of the liquid He- was between 200 - 300 A/sq cm. The R(T) and V(I) functions were measured with different parameters. The results of the measurements have confirmed the theory of conducting mechanism in the material. The percolation structure model has been built and described. As an application, a superconducting planar thick film transformer was planned and produced. Ten windings of the transformer were printed on one side of the alumina substrate and one winding was printed on the other side. The coupling between the two sides was possible through the substrate. The samples did notmore » need special drying and firing parameters. After the preparation, the properties of the transformer were measured. The efficiency and the losses were determined. Finally, some fundamental advantages and problems of the process were discussed. « less
Citizen Apps to Solve Complex Urban Problems

Tackling complex urban problems requires us to examine and leverage diverse sources of information. Today, cities capture large amounts of information in real-time. Data are captured on transportation patterns, electricity and water consumption, citizen use of government services (e.g., parking meters), and even on weather events. Through open data initiatives, government agencies are making information available to citizens. In turn, citizens are building applications that exploit this information to solve local urban problems. Citizens are also building platforms where they can share information regarding government services. Information that was previously unavailable is now being used to gauge quality of services, choose services, and report illegal and unethical behaviors (e.g., requesting bribes). To the best of our knowledge, this is the first paper to examine the range of citizen applications (“citizen apps”) targeting urban issues and to address their effects on urban planning, decision-making, problem solving, and governance. We examine citizen apps that address a wide range of urban issues from those that solve public transportation challenges to those that improve the management of public utilities and services and even public safety.
Training and Development from the management`s viewpoint: a case study in the food sector

Faced with a competitive economic scenario, organizations use Training and Development (T&D) techniques to increase the performance of people, develop skills and acquire new knowledge that aim to increase the satisfaction of their human capital, preparing them for the challenges and changes that may occur in the social and work environment. This article sought to identify possibilities for improvements in T&D in a food industry organization from the perspective of its managers. It is a qualitative and descriptive research, carried out in a food company in the city of Alta Floresta (Mato Grosso). The instrument used for data collection was the semi-structured interview with managers of the Human Resources (HR) area, in addition to documents made available by the company. For data analysis, content analysis with thematic categorization was used. As a result, the need for investments in the training of HR managers, leaders and, mainly, employees of the industrial base were identified. As for leadership development, it was detected that there is the need to work on communication practices between leaders and subordinates, aiming at improving working relationships. Therefore, the importance of thinking about T&D actions in an integrated way with Corporate Education is considered, with the purpose of enabling employees to develop them, in addition to meeting the strategic and operational needs of the organization.
Neurocontrol: Towards an Industrial Control Methodology

Important Concepts of Classical Control Fundamental Approaches to Neurocontrol Neural Networks for Control Optimization Methods for Neural Control Plant Identification Controller Training Robust Neurocontrol Neurocontrol and Adaptivity Stability of Neurocontrollers Recipe for Your first Neurocontrol Application. Case studies: Introductory Remarks to Case Studies Elastomere Test Bench Control Drive Train Test Bench Control Lateral Control of Autonomous Vehicles Biological Waste Water Treatment Control Other Applications Conclusion: Application Potential of Neurocontrol.
Numerical optimization of pre- and in-line dispersion compensation in dispersion-managed systems at 40 Gbit/s

In the context of 40 Gbit/s terrestrial networks, we have exhibited a simple design rule to help perform dispersion management of single-channel links. The optimal pre-compensation has been shown to vary linearly with the in-line residual dispersion. Moreover, the dependence of these parameters on span length and fiber type has been assessed. Preliminary results have also shown the relevance of this rule in WDM configurations.
PENAKSIRAN BOBOT BADAN BERDASARKAN LINGKAR DADA DAN PANJANG BADAN DOMBA DONGGALA

The study was aimed to estimate the body weight of Donggala sheep based on their body length and chest diameter using Lambourne and Schoorl equations. Survey method was used to select the sheep randomly from east Palu, west Palu, and Biromaru. The research results showed that the correlation value of chest diameter with body weight was higher than that with body length. Additionally, t test values of Lambourne and Schoorl equations were lower than the t-Table. This indicates that the body weight of Donggala sheep resulting from direct weighing and from those two equations was no significantly difference. Therefore this study suggested that Lambourne and Schoorl equations are feasible to use for estimating the body weight of Donggala sheeps.
A prediction of high-speed rotor noise

A combined computational (CFD) and integral approach solves the acoustic pressure fields of two high-speed helicopter rotors. A CFD code supplies boundary data to a non-linear type of Kirchhoff integral formulation to find the far-field pressures. Direct calculations of pressures are given by the CFD code up to the sonic cylinder where the Kirchhoff method takes over. This paper shows predictions and measurements of High-Speed Impulsive (HSI) noise in hover for two different rotor geometries. One rotor has a conventional rectangular planform, while the other rotor is highly swept and tapered. The swept rotor analysis forms the majority of this paper. Test data from both rotors are shown and compared with predictions for a range of tip Mach numbers from . 85 to . 95 (including delocalization). The correlation with the near-field pressures from the straight bladed experiment is excellent and good to excellent correlation is seen for the far-field pressures from both experiments.