Miracle-dz/UniFAR-FTUs huggingface dataset:
Mobile phone filmmaking as a participatory medium: The case study of 24 Frames 24 Hours

This research paper explores the recently evolving field of mobile filmmaking as a medium with a potential to increase participation of individuals and communities in their environment. Through the case study of the global mobile filmmaking project 24 Frames 24 Hours, the thesis answers two main questions: how can mobile filmmaking as a process (i.e. the process of creating short films) be used as a participatory and creative medium? , and how can visual products of mobile filmmaking and the way they are presented increase audience participation? The analysis was done through the local and global aspects of the production and distribution of mobile filmmaking, as well as by placing mobile filmmaking within the discourse of cinema history and new media. Due to its accessibility to anyone in terms of price and skills, mobile filmmaking increases one´s participation in his/her physical and social environment and can become an alternative to the mainstream media. In terms of audience participation, the research shows that mobile filmmaking as such does not offer anything so new if compared with examples from the cinema history. What is new about mobile filmmaking is the way it is presented, which in the case of 24 Frames 24 Hours is a database-like structure, allowing the viewer to create new collages and new narratives out of the uploaded videos. However, how much audience can interact with the content and participate in the community depends largely on the extent of the website´s interactivity, which is determined by the interface but also by the actual designer of the website.
Developments in SLA and L2 Research on Psychological and Emotional Factors: A bird’s-eye view

This special issue of Journal of Language and Education is devoted to psychological and emotional aspects that saturate a language learning – and a language teaching – endeavour. Learning a second or a foreign language (L2) is one of those human activities that, besides drawing upon a person’s cognitive resources, involves a multitude of psychological and emotional factors. For this reason, language learning as an activity and process has attracted a considerable interest from psychologists, applied linguists and language educators.
Current limitation control for multi-module parallel operation of UPS inverters

A current limitation control technique for multi-module parallel UPS inverters is presented. All inverter modules have voltage and current control loops. However, only the voltage loop of the master module is active. The current command of the master module is generated by its voltage controller. Voltage loops of all slave modules are idling. The slave module is only for sharing load current with its current command generated from the previous module. By limiting the output current command of each module and sending the difference between the limited and unlimited current commands to the next module, each module only has to share the load current not completely provided by all previous modules. Through circular chain connection of the modules, the number of control interconnections can be minimised. The master module can also be switched online with negligible disturbance for voltage regulation. As only one voltage loop is active at any time, the proposed method is the most stable one when compared with other methods with control interconnection. A robust controller for maintaining good voltage regulating performance even when the parallel number of modules has a large change is also proposed. Three 1 kVA modules have been implemented. The effectiveness of the proposed technique is confirmed with some simulation and experimental results.
An instrument to assess supply chain risk: establishing content validity

Organisations are forming supply chain networks for delivering the right quantity of quality products at the right time to their customers. An understanding about the potential risk sources which could possibly disrupt the performance of the entire supply chain would be useful when developing an instrument to assess the supply chain risk. The objective of this paper is to develop an instrument and establishing the content validity by a quantitative method. The instrument is developed for the purpose of assessing the overall supply chain risk of firms which are grouped under heavy engineering industry.
PERFORMANCE ENHANCEMENT IN MULTIRATE WI-FI NETWORKS

In the paper we address a problem of throughput unfairness inherent in the very nature of multirate Wi-Fi networks employing CSMA/CA mechanism. This unfairness exhibits itself through the fact that slow clients consume more airtime to transfer a given amount of data, leaving less airtime for fast clients. The paper introduces analytical models allowing to estimate a fair contention window (CW) size to be used by each station depending on a ratio between station’s data rates or the airtime consumed by each station. We also analyze PHY and MAC overheads that significantly degrade performance of high data rate stations and investigate how different performance enhancement techniques affect average delay of getting access to the media.
Experimental research and application possibilities of microcogeneration system with Stirling engine

In the first part of this paper there has been the thermodynamic analysis presented, for the microcogeneration system with the Stirling engine, for the working gases most frequently used, among other gases: helium, nitrogen, and air. The methods of performance regulation for the Stirling engine were depicted, among which the increase of the gas pressure in the working chamber and rising of the temperature of the upper heat source can be rated. The results of the experimental tests have been shown: the influence of the growth of pressure and temperature for the working gases, in this experiment they were: helium, nitrogen, and air. In this paper the focus was also placed on the maximum power flow. The tests were performed at the laboratory test stand with the single–action Stirling engine, alpha type, that is located at the Faculty of Automotive and Construction Machinery Engineering, Warsaw University of Technology, at the Integrated Laboratory of the Mechatronic Systems of Vehicles and Construction Machinery. In the second part of this paper the authors presented the power flow in the hybrid system (Senkey diagram) on the internal combustion engine with the Stirling engine, which is employed as a microcogeneration device of the distributed generation. It enables transforming a high-temperature waste heat into mechanical work and transition of mechanical work into electric energy with the help of an electrical appliance, which in consequence makes it possible selling the generated electrical energy to the mains. While analysing the power flow in the hybrid cogeneration system the attention was paid to low-temperature heat which can be utilised through electrical thermogenerators, among other things. The suggested microgeneration assembly (the Stirling engine and electrical thermogenerators) could be applied to regain the energy from the waste heat produced by the combustion engine during combustion of scrap heap biogas. The influence of used microcogeneration systems on the increase in general efficiency of the combustion engine was also taken into consideration in this work. Moreover, there were the test results presented of combustion gases temperatures in the exhaust system of the combustion engine fuelled by scrap heap biogas, with the full-load condition of the combustion engine. The chosen limitations of the Stirling engine build were also discussed, in the situation where it would cooperate with the combustion engine, with waste gases used as a high-temperature heat source.
Superbrotamento de ramos em oliveira causado por fitoplasma: alterações bioquímicas, transmissão por enxertia e quantificação da bactéria nos tecidos do hospedeiro

8 1 INTRODUÇÃO . 9 2 DESENVOLVIMENTO . 11 2.1. REVISÃO BIBLIOGRÁFICA . 11 2.1. 1 Cultura da oliveira . 11 2.1. 2 Fitoplasma . 13 2.1. 3 Superbrotamento de ramos da oliveira . 15 2.1. 4 A enxertia no estudo de doenças causadas por fitoplasmas. 16 2.1. 5 Alterações fisiológicas em plantas doentes . 16 2.1. 6 O PCR em tempo real . 17 2.2 MATERIAL E MÉTODOS . 18 2.2.1 Teste de Patogenicidade . 18 2.2.2 Detecção e identificação do fitoplasma . 19 2.2. 3 Análise de ́nested` PCR . 19 2.2. 4 Purificação do produto de PCR. 20 2.2. 5 Clonagem . 21 2.2. 6 Sequenciamento dos fragmentos genômicos clonados . 22 2.2. 7 Quantificação do fitoplasma nos tecidos das plantas de oliveira por qPCR . 22 2.2. 8 Análises bioquímicas . 23 2.2. 9 Clorofila total . 24 2.2.10 Açucares redutores . 24 2.2.11 Fenóis livres e ligados . 24 2.2.12 Proteínas totais . 25 3 RESULTADOS E DISCUSSÃO . 27 3.1 Teste de patogenicidade. 27 3.2 Quantificação do fitoplasma nos tecidos das plantas de oliveira por qPCR . 31 3.3 Análises bioquímicas . 34 3.3.1 Clorofila total . 34 3.3.2 Açucares redutores . 36 3.3.3 Fenóis livres e ligados . 37
Profiting from External Innovation: A Review of Research on Open Innovation

In 2003, Chesbrough coined the term “open innovation” as a new paradigm for industrial innovation. In this paper, we review and synthesize the growing literature that follows Chesbrough by studying the commercialization of external innovations — one of the key open innovation practices.This paper provides a comprehensive overview and process model of open innovation. We classify prior studies in open innovation according to a four-phase process model for inbound open innovation that includes obtaining, integrating and commercializing external innovation, as well as work on nonreciprocal innovation flows. Finally we identify three opportunities for future research, including greater focus on business models, examination of the later and reciprocal phases of the commercialization process, and research into the limits and moderators of open innovation.
Trajectory tracking for a helicopter model

Abstract In this paper an algorithm for the trajectory tracking of a three-dimensional trajectory, assigned as a function of time, is presented. The proposed control system is suitable for application on unmanned aerial vehicles (UAVs) or for aircraft that require accurate path tracking, as in the case of rotorcraft in nap-of-the-earth (NOE) flight conditions. The control system logic features (i) an external loop based on a simple guidance scheme and a two-time-scale inverse simulation algorithm, and (ii) an inner loop, based on a linear-quadratic (LQ) full-state-feedback controller. In this way the control action is split into two contributions, i.e. a feedforward command, in order to follow the trajectory generated by the guidance scheme, and a feedback increment, for compensating external disturbances and model uncertainties. A rotorcraft model is used to demonstrate the algorithm capability in a NOE–like flight task. System robustness is analysed and control system performance are discussed in terms of the error between vehicle state and desired trajectory at a given time. Simulation of a representative manoeuvre shows that the feedforward estimate of the control action is accurate and only minor compensation is required from the LQ tracker. The algorithm is suitable for a number of applications, as (i) no simplifying assumptions are postulated for the model, (ii) there are no restrictions on the flight condition, and (iii) the computational time should allow for real–time implementation.
Cortical and autonomic responses during staged Taoist meditation: Two distinct meditation strategies

Meditation is a consciousness state associated with specific physiological and neural correlates. Numerous investigations of these correlates reported controversial results which prevented a consistent depiction of the underlying neurophysiological processes. Here we investigated the dynamics of multiple neurophysiological indicators during a staged meditation session. We measured the physiological changes at rest and during the guided Taoist meditation in experienced meditators and naive subjects. We recorded EEG, respiration, galvanic skin response, and photoplethysmography. All subjects followed the same instructions split into 16 stages. In the experienced meditators group we identified two subgroups with different physiological markers dynamics. One subgroup showed several signs of general relaxation evident from the changes in heart rate variability, respiratory rate, and EEG rhythmic activity. The other subgroup exhibited mind concentration patterns primarily noticeable in the EEG recordings while no autonomic responses occurred. The duration and type of previous meditation experience or any baseline indicators we measured did not explain the segregation of the meditators into these two groups. These results suggest that two distinct meditation strategies could be used by experienced meditators, which partly explains the inconsistent results reported in the earlier studies evaluating meditation effects. Our findings are also relevant to the development of the high-end biofeedback systems.
Software Engineering Education Knowledge Versus Industrial Needs

Contribution: Determine and analyze the gap between software practitioners’ education outlined in the 2014 IEEE/ACM software engineering education knowledge (SEEK) and industrial needs pointed by Wikipedia articles referenced in Stack Overflow (SO) posts. Background: Previous work has uncovered deficiencies in the coverage of computer fundamentals, people skills, software processes, and human–computer interaction, suggesting rebalancing. Research Questions: 1) To what extent are developers’ needs, in terms of Wikipedia articles referenced in SO posts, covered by the SEEK knowledge units? 2) How does the popularity of Wikipedia articles relate to their SEEK coverage? 3) What areas of computing knowledge can be better covered by the SEEK knowledge units? 4) Why are Wikipedia articles covered by the SEEK knowledge units cited on SO? Methodology: Wikipedia articles were systematically collected from SO posts. The most cited were manually mapped to the SEEK knowledge units, assessed according to their degree of coverage. Articles insufficiently covered by the SEEK were classified by hand using the 2012 ACM computing classification system (CCS). A sample of posts referencing sufficiently covered articles was manually analyzed. A survey was conducted on software practitioners to validate the study findings. Findings: SEEK appears to cover sufficiently computer science fundamentals, software design, and mathematical concepts, but less so areas, such as the World Wide Web, software engineering (SE) components, and computer graphics. Developers seek advice, best practices and explanations about software topics, and code review assistance. Future SEEK models and the computing education could dive deeper in information systems, design, testing, security, and soft skills.
DSMC Simulation of Non‐uniform Flow Effects behind a Conical Nozzle

The two‐dimensional cylindrical DSMC simulations around a object were conducted in order to estimate the effect of the upstream condition. Non‐equilibrium between translational and rotational temperatures at the nozzle exit is approximately 10K. The shock wave generated by the object and the boundary layer developed along the nozzle wall interact around the object. The comparison between the results with the nozzle exit flow and those in the uniform flow reveals that the temperature profiles around the object are influenced by the upstream flow conditions, and that the difference is approximately 20K.
Children’s Species Literacy as Estimated and Desired by Biodiversity Communicators: a Mismatch with the Actual Level

While biodiversity decline continues and laypeople’s knowledge about species is limited, especially in children, high-quality communication is needed to raise awareness. For this, communicators should be aware of current knowledge levels in their target groups. We compared biodiversity communicators' estimates of the average species literacy level in primary school children with the actual level. Moreover, we explored the importance that communicators placed on species literacy and the level that they desired. Estimations of children’s average knowledge level varied widely and differed from the actual level. In particular, communicators overestimated the species literacy level. Although most biodiversity communicators agreed that knowledge about species is important, their view differed as to why species literacy would be important. Moreover, communicators differed with respect to the relative importance attached to different knowledge components. Professionals may thus benefit from a detailed framework of species literacy that illustrates different aspects and values. Most importantly, our findings suggest that to bridge the gap between actual and desired knowledge levels in children effectively, biodiversity communicators first need to become more aware of current perceptions in young audiences.
The carrier-based PWM method for voltage balance of flying capacitor multilevel inverter

This paper proposes a new solution using a carrier-based PWM method to solve the most serious problem of flying capacitor multi-level inverters, that is the unbalance of capacitor voltages. The voltage unbalance occurs due to the difference of each capacitor's charging and discharging time applied to the flying capacitor inverter. The new solution controls the variation of capacitor voltages into the mean '0' during some period by means of new carriers using the leg voltage redundancy in the flying capacitor inverter. The solution can be easily expanded to multi-level inverters. Also, this method can make the switching loss and conduction loss of devices equal by the use of leg voltage redundancy. First, this paper examines the unbalance of capacitor voltage and the conventional theory of self-balance using phase-shifted carriers. Then, a new method that is suitable for flying capacitor inverters is explained. Simulation results verify the proposed method.
Identifying barriers in pricing capability

Syftet med denna uppsats ar att undersoka prissattningsprocesser for att finna barriarer som forhindrar industriforetag att forbattra sin prissattningsformaga. Forutom att hitta gemensamma barriarer ska vi aven ge ett teoretiskt bidrag gallande hur foretag kan forbattra sin prissattningsformaga, med speciellt fokus pa barriarer. Vi har genomfort en multipel case-study pa 6 industriforetag samt ett konsultforetag. Vart tillvagagangssatt var abduktivt och vi inledde var uppsats genom att utveckla ett teoretiskt ramverk som lade grunden till var studie. Det teoretiska perspektivet innehaller varierande litteratur gallande prissattning, prissattning som en formaga samt det resursbaserade synsattet. Vi fokuserade speciellt pa Dutta et al (2003). Studien bygger pa intervjuer med 9 individer pa vara respondentforetag. Vi genomforde 4 telefonintervjuer och 4 face-to-face intervjuer. Var slutsats ar att variationen i pricing capability beror pa barriarer.
Thick-wall electrical capacitance tomography and its application in dense-phase pneumatic conveying under high pressure

The thick-wall ECT system applied in high pressure is introduced, and the pipe wall thickness of ECT sensor is 5 mm. To analyse the effect of pipe wall thickness on ECT sensor, radius electrode ratio is defined as the ratio of inner and outer radius of pipeline. ANSYS and Matlab are combined to simulate sensor characteristic. Linear back projection algorithm is adopted to reconstruct the images of stratified flow, core flow and annular flow with different radius electrode ratios. The results of simulation indicate that there is a small image error under high radius electrode ratio, and the images reconstructed from stratified flow are better than those from core flow and annular flow. The independently developed ECT system is applied to identify the flow regime of gas solid flows in horizontal pipeline with 10 mm inner diameter in a pulverised coal dense-phase pneumatic conveying experimental setup. The pressure is up to 4.0 MPa and the solid gas ratio is up to 11.73 kg/kg. The experimental results of eight-electrode ECT with thick pipeline sensor, which is used on the pulverised coal dense-phase pneumatic conveying experimental setup, are given. Finally, the Fluent simulation of concentration distribution at the similar condition is introduced to validate the ECT imaging result.
Merging bathymetric and optical cues form in-de-tail inspetion of an underwater shipwreck

We present a multimodal representation for mapping old underwater shipwrecks, in which bathymetric and optical data are joined together in a single 3D model. We use 3D smoothing and decimation techniques in order to alleviate possible aberrations on the original data and generate a light weight faithful representation respectively. The generated model can be visualized in common 3D CAD tools for further exploration and manipulation.
Exploring Entrepreneurial Intentions in Marien Ngouabi University Students

The aim of this study was to examine the factors that would likely influence the entrepreneurial intention of the students in Marien Ngouabi university which is one of the public Higher Education in Congo. The entrepreneurial intentions of students were determined using demographic, individual, Contextual and Personality variables. The primary data were collected through a questionnaire survey method. A total of 3000 students have been included from different programs such as economics, sport, commerce, sciences, com-puter and IT, medical sciences, agriculture, engineering, art and law. Using logistic regression, findings suggest that gender, tutor education, field of study, parents owning a business, having a job while at university, parent’s monthly income, desire for independence, living with parents together, school calendar were the key factors that influence students’ entrepreneurial intention. The results of this study will help in understanding the phenome-non of entrepreneurial intention among university students and help policy makers in promoting and developing future entrepreneurs in university.
Unit Commitment Solution Based on Improved Particle Swarm Optimization Method

• The optimal scheduling of power generation • The Unit Commitment Solution based on Improved Particle Swarm Optimization. • lowest production cost during a specified period of time. • Economic Dispatch solution with Lambda Iteration Method. • Dynamic Programming a conventional method used for solving the unit commitment. This paper presents an algorithm to solve the unit commitment problem using the intelligence technique based on improved Particle Swarm Optimization (IPSO) for establishing the optimal scheduling of the generating units in the electric power system with the lowest production cost during a specified time and subjected to all the constraints. The minimum production cost is calculated based on using the Lambda Iteration method. A conventional method was also used for solving the unit commitment problem using the Dynamic Programming method (DP). The two methods were tested on the 14-bus IEEE test system and the results of both methods were compared with each other and with other references. The comparison showed the effectiveness of the proposed method over other methods. A R T I C L E I N F O Handling editor: Ivan A. Hashim