bluuebunny/crossref_metadata_2025_split huggingface dataset:
Utilising Emotions in the Teaching of Water Management Structures III
Authors: Miklosikova M , Malcik M , Vaclavik V 
Published: February 2020

Abstract
Fortunately, the role of emotions in relation to motivation and the learning process has been increasingly taken into account lately, not only for younger pupils but for all generations of students, including university students. In the past already, the educational goals were divided into cognitive, affective and psychomotor but at universities, the emphasis has always been more on cognitive goals. University student’s motivation to learn is a complex psychic process, which is influenced, among other things, by the student’s volitional (I must) qualities and their emotions (I am interested, I enjoy). An important part of studies is also the acquisition and strengthening of social personality competences (soft skills), which are closely related to emotions and which, together with expertise, are an important part of every profession. In the research, we first found out how the emotions and motivation of university students are utilised in the teaching of the course Water Management Structures III; and which teaching methods are preferred for this purpose. Then we investigated the level of stress, fear and anxiety that students experience when presenting a seminar assignment in the given subject in front of a study group by measuring the physiological quantity of emotion – the electrodermal activity of the skin. The measured values were collated with the self-awareness of students; to what extent they were aware of their emotions, how they experienced them and worked with them. Adequate self-presentation and coping with difficult situations are closely related with the ability to work with emotions and are considered by employers as very important social and personal competencies.
Land use changes and effects on heat islands in the city
Authors: Vojvodikova B , Ticha I , Fojtik R , Jupova K 
Published: February 2020

Abstract
Because of ongoing climate change cities need to take into account also temperature rise issues during projects preparation and in general planning, in order to mitigate heat stress problems. This paper shows the possibilities of applying the Urban Climate model in connection with the evaluation of temperature islands when changing land use-land cover. The example of Masaryk Square in Hodonin shows that small technical solutions can improve the thermal stress islands in urban areas. In the second part of the paper, the results of assessing usability of the model’s application in the form of the Climate-fit.city service using the cost benefit analysis are outlined. In conclusion, the opinions of the representatives of the town of Hodonin for which this service was created are summarized.
Threshold Determination Using Bi-hazard Fragility Curves for the Evaluation of Structural Health Monitoring of USHER Technology
Authors: Baylon M B , Uy F A A , Montes K M S , Embalzado K A D 
Published: February 2020

Abstract
Structural Health Monitoring (SHM) is not new in the field of structural engineering and its application goes from the monitoring to evaluation of bridges, dams, buildings, and other similar structures. As per National Structural Code of the Philippines (NSCP) Volume 1[1-4], the Implementing Rules of earthquake recording instrumentation of buildings has been continually advancing, but not in the case of bridges and dams. The objective of this paper is to apply the established sensor-driven accelerometer developed by USHER (Universal Structural Health Evaluation and Recording) system in the evaluation of Padre Jacinto Zamora Bridge in Manila; specifically, to determine the proper installation of the developed accelerometer in the identified critical parts of the bridge. SHM addresses the problem of structural integrity assessment and help in assuring repair cost to a minimal. SHM helps quantify the strength of a structure by identifying the damage. Often evaluations are made using visual inspection and by age consideration. Most of the time, the use of this type of evaluation tend to be expensive. Repairs are not directed to the damaged component alone but the whole structure. Hence, the expenditure expands. SHM with the application of Micro-Electro-Mechanical Sensors (MEMS) will allow gathering of data that can be converted in the form of the structure’s modal properties (i.e. natural frequency, mode shape, and damping ratio) [6, 7]. Structural health is then determined and be ready to compare it to the structural model simulation results. A method was developed to incorporate seismic fragility curves [5] to determine the thresholds for the evaluation of the structural health. Capacity spectrum method was utilized to derive the seismic fragility function. A Monte Carlo Simulation was used to derive the flood fragility curves.
Inhomogeneous Rods in Torsion: Longitudinal Fracture Analysis by Considering the Energy Balance
Authors: Rizov V 
Published: February 2020

Abstract
Fracture of inhomogeneous non-linear elastic rods with a longitudinal circular cylindrical crack is analyzed. Rods have circular cross-section and are loaded in torsion. General approach for analyzing the strain energy release rate is developed by considering the balance of the energy. The rods exhibit continuous material inhomogeneity in both radial and length directions. The general approach is applied to analyze the strain energy release rate for a longitudinal crack in a clamped inhomogeneous rod loaded in torsion. The strain energy release rate is derived also by considering the complementary strain energy for verification.
Cost Impact Analysis on the DPWH Guideline and Implementing Rules on Earthquake Recording Instrumentation for Private Buildings using Multi-Criteria Decision Analysis-Analytical Hierarchy Process (MCDA-AHP) in the City of Manila
Authors: Alfonso V. C. M. , Bagsit M. B. , Reyes J. D. , Baylon M. B. , Uy F. A. A. 
Published: February 2020

Abstract
Philippines lie in the Pacific Ring of Fire, a region where earthquakes and other seismic activities are frequent. Through the NBCDO Memorandum Circular No. 01 Series of 2015, The DPWH Guidelines and Implementing Rules on Earthquake Recording Instrumentation for buildings was implemented with the objectives of: (1) ensuring the safety of building occupants by determining the condition of buildings, and (2) collecting earthquake related data during major seismic activities. Despite being signed on March 12, 2015, the compliance rate of the buildings here in the City of Manila was low. The purpose of this study is to determine the cost impact of the said guidelines to building owners using MCDA- AHP; as well as to identify the amount needed to equip the City of Manila. The research was carried out having SHM experts (for AHP) and building owners (for MCDA) as the respondents for the corresponding parts of the study. The results show that the equipment price has the biggest impact to the building owners and their willingness to pay for ERIs is lower compared to the market.
Adsorption of Diclofenac Pharmaceutical onto a Cationic Organoclay and an Untreated Montmorillonite
Authors: De Oliveira Tiago , Guégan Régis 
Published: February 2020

Abstract
Among pharmaceutical products (PPs) recalcitrant to water treatments, diclofenac shows a high toxicity and remains at high concentration in natural aquatic environments. The aim of this study concerns the understanding of the adsorption mechanism of this anionic PP onto an organoclay prepared with a long-alkyl chains cationic surfactant for various experimental pH and temperature conditions. The experimental data obtained by a set of complementary techniques (X-ray diffraction, elemental analyses, gas chromatography coupled with mass spectrometry, and Fourier transform infrared spectroscopy) and the use of Langmuir, Freundlich and Dubinin-Radushkevish equation models, reveal that organoclays show a good affinity to diclofenac while the chemical nature of surfactant appears to play a minor role. This study stresses out the application of organoclays for the adsorption of a recalcitrant PP in numerous aquatic compartments that can be used as a complement with activated carbon for waste water treatment for instance.
Steam Integrated Flattening Machine for Bamboo Culms
Authors: Atienza A H , Gutlay H , Rodrigo P V , Tamayo P 
Published: February 2020

Abstract
Bamboo is a fast growing grass plant abundant in tropical and subtropical countries. Bamboo culms can be used in a variety of applications and thus needs to undergo different process one such process is the flattening process. Traditional flattening process uses the bolos, machetes and hand splitters to make slats of the bamboo. This paper aimed to present a flattening machine with a presser mechanism which utilizes heat and steam to help in the flattening process. The output of the machine was flattened semi-circular bamboo culms from varying radius a bamboo culm with minimal to no cracks. The parameters that were observed were the thickness of the culm, flattening time, heating temperature and length of the culm. From the testing, it showed that flattening time varies directly with the thickness of the bamboo culm.
Numerical Simulation and Experiment of a MEMS Ultrasonic Cavitation Model
Authors: Liu Zihong , You Hui , Li Liangchao , Lin Ronghui , Zhang Ping 
Published: February 2020

Abstract
This paper aims at analyzing the microbubble ultrasonic cavitation from the designed Bowl-shaped piezoelectric transducer in a micro channel. The cavitation conditions were derived and three methods of analysis were employed: (i) numerical analysis of piezoelectric parameters for the bubble cavitation using 2D piezo-acoustic coupling modelling. (ii) numerical analysis of microbubble dynamics and activities under ultrasound irradiation using 2D CFD simulation. (iii) experimental analysis of ultrasonic cavitation using designed micro-fluid chip by acoustic chemistry method. With the cavitation condition, the cavitation phenomenon of a lone micro bubble was analysed by the classic mathematical modelling, by which the piezoelectric transducer was optimized for ultrasonic cavitation in the micro channel. From the CFD results, the velocity of acoustic streaming increased to 58.6m/s, and the movement of the bubble wall was affected by the ultrasonic characters, which was in good agreement with the literature. The ultrasonic cavitation was proved to exist in the micro channel by the acoustic chemistry experiment.
Earthquake Vulnerability Assessment of High-Rise Buildings in Surabaya using RViSITS Android Application
Authors: Riyanto Wahyu , Irawan Djoko , Joko Wahyu Adi Tri , Iranata Data , Rizki Amalia Aniendhita 
Published: February 2020

Abstract
This article presents about vulnerability assessment of high-rise building in Surabaya, the second largest city in Indonesia. In 2007, the Earthquake National Research Center -Indonesia’s Ministry of Public Works released the latest earthquake fault map. Include the discovery of Surabaya fault and Waru fault that across Surabaya. According to that new discovered fault, it is possible that there is a higher potential earthquake hazard for buildings structures in Surabaya. Therefore, the efforts to assess the vulnerability of buildings towards the earthquake need to be conducted, especially for the high-rise buildings. An android based RViSITS (Rapid Visual Survey by Institut Teknologi Sepuluh Nopember) is an application that has been developed based on FEMA 154. That application helps the vulnerability assessments of buildings can be conducted quickly and efficiently. Since, it does not require a lot of personnel, quite short research time and cheaper cost than having to use a manual form that is considered less effective for a large number of buildings. This research itself is conducted to assess the vulnerability of high-rise buildings (8-15 floors) throughout Surabaya city using the RViSITS android application. Based on the results of this study on 98 high rise buildings, it is found that 21 buildings (21.43%) are in the prone category since they had an index value < 2, while 77 buildings (78.57%) are in the safe category with an index ≥ 2. The result obtained in this research can be used as a database of local government institution for mapping the vulnerability of high rise buildings and initial input for mitigation plan toward the higher possibility of an earthquake hazard in Surabaya.
Effect of Method of Soil Drying On Atterberg Limits and Soil Classification
Authors: Raad Al-Adhadh Ahmed , Kadhem Sakban Haider , Tawfiq Naeem Zahraa 
Published: February 2020

Abstract
One of the most significant factors that effects the soil classification is Atterberg limits, liquid limit and plastic limit. Atterberg limits were developed by a Swedish scientist at the early 1900’s called Atterberg. These limits could express the consistency of fine-grained soils due to variety of water content. These limits divide the soil into four major states, solid, semi-solid, plastic, and liquid state. According to American Standard for Testing and Materials (ASTM), to check liquid limit and plastic limit tests for a soil, the soil should be dried before the test for preparation purpose. ASTM specified two ways to dry the soil specimens, oven dry and air weather dry and both should give same results. Most of engineers will go with dry oven method to speed up the specimen preparation process assuming there is no any difference between these two methods of drying. In this research, the effect of the drying method has been studied. The results showed that the drying method has a significant effect on the liquid and plastic limits and then on the classification of soils. The soil specimens of this research were brought from all over Iraq cities to ensure studying different soils that could exhibits different behaviors.
Artificial Intelligence of the Water Supply System of Plant Growing Objects
Authors: Yu Polenov D 
Published: February 2020

Abstract
The article proposes a solution to the problem of achieving the maximum value of productivity of plant growing objects based on the introduction of artificial intelligence on the basis of neural networks in the water supply system of plants. Various factors affecting crop yields and plant growth are presented. Factors are considered as incoming signals for mathematical neurons of artificial intelligence. A diagram of the artificial intelligence neural network of the plant water supply system, its topology, and the corresponding mathematical model are constructed.
Use of Zinc Ferrite for Photocatalytic Treatment of Water Contaminated with Organic Dye
Authors: Cantiello A , Candamano S , De Luca P 
Published: February 2020

Abstract
The present work aims to test the use of zinc ferrite as a photocatalytic agent for the discoloration of water contaminated by organic dyes. The zinc ferrite used is an industrial waste that comes from an industrial plant destined for the extraction of zinc. The organic dye studied was the Blue Patent V. The photocatalytic tests were prepared using aqueous solutions contaminated by the organic dye to which predetermined quantities of zinc ferrite were added and were subsequently exposed to sunlight for programmed times. Furthermore, systems in the presence of hydrogen peroxide have also been studied. After the exposure time, the systems were filtered and the concentrations of the solutions were measured with UV spectrophotometry. The ferrite after the photocatalytic tests was characterized by thermal analysis (DSC). The data obtained were analyzed according to the experimental parameters used. Zinc ferrite showed photodegradative abilities respect to the analyzed dye.
Numerical Simulation of Air Resistance on the Mars Probe Cabin Separation
Authors: Chen Qiwei , Feng Wei , Tang Laiying , Wang Linzheng , Zheng Shengyu , Sun Wei , Wang Wei 
Published: February 2020

Abstract
In order to verify the separation requirements of Mars probe’s cabins, the Flunet analysis models of the heatshield and the aeroshell of Mars probe are established. The relationships between air resistance and the velocity, deflection angle of the cabins are obtained by numerical calculation method. The relationships between air resistance moment and the velocity, deflection angle of the cabins are also gained. According to simulation and analysis, the air resistance of the cabins obviously with velocity, but has little change with the increase of deflection angle. The air resistance moment of the cabins increases obviously with velocity and deflection angle.The dynamic simulation results of air resistance during the courses of the cabins separations provide effective data support for the simulation and ground validation of Mars probe cabin separation.
Comparison of Three Compensation Methods for the Touch-trigger Probe Pretravel Errors
Authors: Li Simi , Zeng Long , Feng Pingfa , Yu Dingwen 
Published: February 2020

Abstract
On-machine inspection (OMI) system has been used extensively for automatic setting of the workpiece and determination of kinematic error in machine tool. There is a necessity not only for knowledge of touch-trigger probing error characteristic, but also for the compensation method of probe error because probing error is an important component of system errors. The comparison of compensation accuracy of three compensation methods is presented. To compensate the touch trigger probe pre-travel errors the calibration experiments with a reference sphere are conducted. Subsequently, the calibration data are used in three compensation methods that the bilinear interpolation method, the bicubic Coons pitch interpolation method and the neural network method. Finally, the validate experiments are conducted on the OMI system, and the compensation results show that the bicubic Coons pitch interpolation method is the most accuracy compensation method.
Flight Path Planning Surrogate Model Based on Stacking Ensemble Learning
Authors: Yang X Z , Cui Z X , Qiu X Y 
Published: February 2020

Abstract
This paper proposes a method of establishing flight path planning surrogate model based on stacking ensemble learning, which can solve the real-time problem of complex flight mission’s on-line waypoints calculation. Airborne navigation system mainly utilizes several discrete waypoints to guide flight path or flight control. These waypoints are usually calculated by a set of equations based on flight dynamics, flight kinematics and flight mission constraints, and therefore path planning for complex missions cannot guarantee real-time performance. In this paper, flight samples are generated offline by taking flight mission characteristic parameters as input and flight waypoint coordinate series as output. Then two-layer coupling model is constructed based on stacking ensemble learning. A series of base-learners are constructed to learn the quantity of waypoints or each waypoint’s coordinate values respectively. At last, flight path planning surrogate model is built by combining all the base-learners, establishing the direct mapping relationship between input and output. The results show that this surrogate model can effectively calculate the aircraft flight waypoints, and meanwhile maintains ideal accuracy and real-time performance.
Research on Service-oriented UAV Route Planning Component Design
Authors: Qi Yuanyuan , Kang MinYang , Xue Bing , Wang Shuo 
Published: February 2020

Abstract
In the field of aviation equipment, with the development of airborne avionics systems towards systemized multi-platform coordination, the service-oriented architecture (SOA) has become an important trend for the development of open avionics system. Based on the idea of SOA, the service-oriented design of the UAV route planning component is proposed in this paper. Firstly, the functions of avionics are abstracted out from generally involved avionics missions with focus on the conception of avionics service. Then the function-directed servitization process of the UAV avionics resources is studied, based on which, a set of callable UAV route planning components are further constructed. The UAV route planning service component set can be flexibly deployed according to different task requirements, which solves the problem of resource-application coupling for the UAV avionics, and provides support for the intelligent and autonomous operation of UAV.
Fatigue Behavior of Friction Stir Welded Lap Joints for Dissimilar AA7150-AA2524 Aluminum Alloy
Authors: Chen A , Zang W F , Dong D K , Gong Y Z 
Published: February 2020

Abstract
The detail fatigue rating (DFR) value of friction stir welded (FSW) lap joints for dissimilar AA7150-AA2524 aluminum alloy was experimentally investigated. The metallographic analysis was carried out on by optical microscope (OM). Fatigue fractography was observed under scanning electron microscope (SEM). The results indicate that DFR value of AA7150-AA2524 FSW lap joints is 191.54MPa. There is no distinct different boundary between HAZ and BM of the upper AA7150 sheet. The grains in the upper NZ of AA7150 are coarser than those in the bottom NZ of AA2524. Fracture morphologies shows that lots of hook defects in the FSW lap joint. Fractography indicates that fatigue crack is initiated from the AA2524 bottom surface around the weld center, where weak-bonding defects can be seen. The hook defects and weak-bonding defects have obvious influence on the fatigue property of friction stir welding lap joints, which seriously reduce the fatigue strength.
Experimental studies of the possible piping installation for ship systems
Authors: Do T M 
Published: February 2020

Abstract
Improvement in the pipelines processability of ship systems at the stage of design and technical preparation with the possibility of making pipes without local dimensioning is considered in the current research work. In the course of the experimental calculation, the objective, the tasks and the plan of the experiment were developed; the necessary initial data were prepared. According to the experimental calculation result, the theoretical predictions were confirmed for the possibilities of assembling the pipeline routes at the design stage and the conceptual basis for eliminating total deviations by the routes transition. An algorithm has been developed for eliminating deviations of pipeline routes using mutually straight sections with pipe junctions and additional allowances. According to the research results, the prerequisites for the method development to improve the technological effectiveness of pipelines at the stage of design and technological preparation were created. With regard to a greater number of pipelines, it is possible to replace the inserting pipes with fitting pipes, which will be flexible according to the design dimensions without specifying the place, helping to reduce the time required for the construction of objects saturated with pipelines.