Miracle-dz/UniFAR-FTUs huggingface dataset:
Vertical Impact Tests of a Modified F/FB-111 Crew Seat to Evaluate Headrest Position and Restraint Configuration Effects

Abstract : A test program was conducted to evaluate the effects of changes in (1) fore-aft headrest position, (2) upper extremity bracing, and (3) restraint harness configuration on human response to vertical impact. One-hundred and fifteen human tests were performed on the Vertical Deceleration Tower up to an impact level of 10.5 G mean (std dev = 0.14), 26 ft/sec velocity change. Subjects were restrained in either a proposed, modified F/FB-111 crew seat and restraint system or a conventional double shoulder strap - lap belt restraint harness and were exposed to comparable impacts in different upper extremely bracing conditions and at different fore-aft headrest adjustments. Measured data included seat acceleration and velocity, head and chest translational acceleration components, tri-axial forces acting on the seat and footrest, forces acting in the restraint harness attachments, and displacements of various body segments. Parametric analysis of the test results was conducted using the Wilcoxon paired-replicate rank test. With the headrest 2 1/4 inches forward of the plane of the seat back, there was increased forward and downward head rotation compared to the headrest 1 inch aft of the seat pack plane. With the headrest 1 inch aft of the plane of the seat ack, there was increased forward- translation of the head compared to the headrest 2 1/4 inches forward of the seat back plane. Subjects utilizing the hands-on-knees bracing position were found to carry a greater proportion of the load through the extremities to the footrest, thereby unloading the vertebral column, than subjects using the hands- in-lap position.
Project Portfolio Management - an organising perspective

This thesis deals with aspects of importance for organising project portfolio management. Project portfolio management of industrial development projects is commonly agreed to be a way of maximising the value of the development effort, creating a balance of the activities undertaken, and ensuring a strategic alignment when choosing and compromising among development opportunities. For several years, both practitioners and researchers have developed tools and methods assisting managers in decisions regarding the project portfolio composition. During the last decade the research in the area has developed to include aspects of which participants to involve and how to arrange the project portfolio management activities. In project portfolio management literature it is commonly agreed that no one best way to organise for project portfolio management exists. Despite diverse efforts, the literature has so far not provided a thorough knowledge of aspects in areas concerning the selection of participants to involve and how to arrange the project portfolio management activities. It is therefore such aspects that are addressed in this thesis. The research strategy has been to use case studies, and the main empirical data used in the thesis stem from a single case study at the business unit for Away-From-Home Tissue products at SCA. Supplementing the latter data is a multiple case study of six Swedish companies. The findings in the thesis show that aspects of importance for organising project portfolio management concern three different areas: how the portfolio management activities are arranged (i.e. procedural aspects), how the tools and methods are used, and how to involve relevant organisational participants (i.e. organisational aspects). It is also seen that including different types of projects in the same project portfolio (i.e. product development, manufacturing process development, technology development) yields implications for how to organise the project portfolio management. The process must allow for taking into account different strategies, different ways of evaluating projects, different needs of updating the portfolio, and an involvement of managers with different knowledge in the activities. The findings demonstrate that the same tools and methods can be used in different ways throughout the process for assisting the project portfolio management. Lastly, it is found that how the project portfolio management activities are arranged, and which organisational participants are involved, will affect the use of tools and methods in project portfolio management.
Influence of undershirt type on physiological responses while exercising in the heat

[Extract] Australian soldiers typically wear a 100% cotton t-shirt underneath their disruptive pattern combat uniform (DPCU). When working in hot environments it has been questioned whether removing the t-shirt would improve a soldier's heat loss capacity. Furthermore, in recent years there has been an emergence of tight-fitting polyester t-shirts and manufacturers claim that these garments will cool the body by wicking sweat away from the skin. Wickwire et al [1] found wearing a tight-fitting synthetic t-shirt, under protective body armour, had no effect on body heat loss. This is not surprising, as no evaporative heat loss can occur through the body armour. If, however, a polyester t-shirt is combined with a more permeable over-garment (i.e. combat uniform) a greater cooling effect may be possible. Therefore, the aim of this study was to determine whether i) wearing a t-shirt underneath DPCU reduces body heat loss and ii) wearing a tight-fitting polyester t-shirt improves body heat loss.
Investigating Faculty Members’ Perceived Usability of Edmodo Learning Management System

Article History: Received 27.02. 2019 Received in revised form 12.06. 2019 Accepted 17.06. 2019 Available online 30.06. 2019 Article Type: Research Article New developments in the field of computer science have allowed the development and dissemination of the systems that universities use to support their educational processes. Among these systems, learning management systems are at the top of the tools faculty members use to carry out online learning processes. Today, with the increase in learning management systems, meeting the need for usability testing is becoming more important both for ensuring user satisfaction and for revealing appropriate software solutions. This study seeks to understand how faculty members perceive the usability of a cloud-based learning management system that is widely used in many universities. The study adopted the convenience sampling method of purposeful sampling strategies. In the quantitative part of the study, the perceived usability was examined with the System Usability Scale by 12 faculty members. In the qualitative part of the study, the data about the usability issues that faculty members face in the software were collected by semi-structured interviews and investigated using content analysis method. Findings have shown that the web application side of the learning management system got an above average perceived usability. Besides, some issues that affect perceived usability were found regarding to system loading speed, site structure, assignment management and grading mechanism, Turkish language support, content filtering and labeling, and finally the badge system. The findings of this study are intended to provide guidance to software developers and decision makers to better understand the perceived usability of faculty members and to identify the need for improvement of the software usability. © 2019 AUJES. All rights reserved
Wastewater Treatment Potentials of Vegetated Beds with Brillantaisia cf. bauchiensis Hutch & Dalz and Polygonum salicifolium Brouss ex Wild in the Western Highlands of Cameroon

The objective of this study was to evaluate the potentials of beds vegetated with medicinal species (Brillantaisia bauchiensis and Polygonum salicifolium) in a constructed wetland for domestic wastewater treatment in the Western Highlands of Cameroon. The study was carried out between March and September 2017 on plants collected from a natural wetland in Penka-Michel. The two plants species selected based on their ethnobotanical importance were transplanted and allowed to grow to maturity in a prepared natural wetland at Penka-Michel and a constructed wetland for domestic wastewater treatment on the campus of the University of Dschang. Growth parameters were followed for the two plants species in both wetlands. The physicochemical parameters and faecal bacteria concentrations were measured only for the vegetated and non-vegetated/control beds in the constructed wetland. Overall, the two plants species showed increased growth in height, diameter, leaf number and plants density. The change in diameter and density were very significantly influenced by species type in the constructed wetland than in the natural wetland. Generally, plant growth in height, diameter and density were higher with B. bauchiensis in the constructed wetland than with P. salicifolium in both wetlands. The mean faecal bacteria removal was higher in the vegetated beds for some bacteria than in the non-vegetated/control bed. There was a significant difference in the reduction efficiency of TSS, turbidity, BOD, Faecal streptococci and Total coliforms bacteria between the inflow and the outflow of some treatment beds especially the bed vegetated with Brillantaisia bauchiensis. There were correlations between the two plants species as concerns increased plants height, diameter, leave number, shoot number and nutrients uptake in the constructed wetland beds compared with the natural wetland.
Aerodynamic Analysis of a Canard Missile Configuration using ANSYS-CFX

Abstract : This study used the Computational Fluid Dynamics code, ANSYS-CFX to predict the static aerodynamic characteristics of a canard-wing missile configuration with a hemispherical nose, triangular wedge canards and fixed trapezoidal wings. The study was conducted for Mach numbers of 0.2, 0.8 and 1.2. The results were compared against experimental data from actual wind tunnel tests and data from a semi-empirical method, AP09. The ANSYS-CFX results showed good agreement for CN, CM, and CL but less agreement for CA when compared to the experimental results. The AP09 results also showed good agreement for CN, CM, and CL but also showed less agreement for CA.
Understanding and Managing Project Complexity

This research focuses on project complexity with the aim to better understand it and to highlight the factors that affect / contribute to it. In addition, this research also highlights key project management practices and project critical success factors considered important to manage project complexity / complex projects.The two main motivating factors behind this research were, the lack of understanding of complex projects and the lack of relevance of project management theory to practice, which have been highlighted by many researchers. Since projects in different sectors are increasingly being characterised as complex, this entails a better project management knowledge base focusing on the dynamic, social and complex contexts of projects, so that the interrelationships, interdependencies and uncertainties between different project interfaces can be understood and managed properly. In order to understand this ? project actuality? , it was necessary to obtain the views from practitioners working in these project settings and managing project dynamics and intricacies. To establish this pragmatic view, a series of interviews and questionnaire surveys was carried out and all efforts were made to select the participants working on complex projects with complex products falling under the Complex Product Systems ? CoPS category which was the case in the 2nd phase interviews and questionnaire, whereas in the 1st phase practitioners with industrial experience and also involved and/or in the process of getting academic qualification in project management were preferred. The first phase helped in establishing the theoretical and pragmatic perspective and the 2nd phase in refining and validating the findings. The questions were inline with the research focus mentioned earlier.The main findings of the research show that the perception of project complexity and its contributing factors were very much influenced by the project context, i.e. from organization level to work discipline level. No difference in the practitioners? perception of project complexity and its contributing factors was observed among the practitioners based in a similar organization and project setting. Novelty was found to be one of the key project complexity characteristics related to three project elements-people, product and process. In terms of key project management practices and skills considered important in managing project complexity, soft skills were reported useful by majority of the participants. The key processes found useful were either the ones which focused on people or others which helped to manage changes / deviations in projects. Influence and relationship, delegation, flexibility and trust were the main project critical success factors which emerged out of this research for complex projects.
Winflume - windows-based software for the design of long-throated measuring flumes.

Long-throated flumes and broad-crested weirs provide a practical, low-cost, flexible means of measuring open-channel flows in new and existing irrigation systems, with distinct advantages over other flume and weir devices. A primary advantage is the fact that these structures can be custom-designed and calibrated with a computer program based on well-established hydraulic theory. This allows the design of structures that meet unique operational and site requirements, and eliminates the need for laboratory calibration. To facilitate future use of these devices, the Bureau of Reclamation and the Agricultural Research Service have recently developed the Windows-based, WinFlume computer program described in this paper.
A Generic Public Key Infrastructure for Securing Car-to-X Communication

Security and privacy in Car-to-X (C2X) communication is a major aspect that affects all applications used in the network. Due to the wireless communication and the decentralized character of the ad-hoc network attacks are inevitable and are hardly detectable by central entities. Especially, safety critical applications which trigger their actions based on data received from other network entities are relying on the trustworthiness of the exchanged messages. To achieve this trust in messages, the worldwide commonly followed approach is to introduce a Public Key Infrastructure (PKI). The PKI issues certificates to C2X enabled units and therefore assures their validity. Yet, C2X has several special requirements on the design of a suitable PKI, like minimum overhead and privacy preservation. This paper presents a PKI organisation and structure, which was created in the context of the Car 2 Car Communication Consortium (C2C-CC), the European industry forum on C2X communication technologies. In the design of our proposed PKI, great importance is attached laid on interoperability with other PKIs (e.g. in the U.S.) and extensibility for future additional implementations. Processes are defined for message verification, certificate updates and entity revocation. Likewise, flexible privacy protection measures and anonymity aspects in the ad-hoc communication as well as in the PKI backend are also a major topic.
Evaluation of total aboveground biomass and total merchantable biomass in Missouri

In recent years, the state of Missouri has been converting to biomass weight rather than volume as the standard measurement of wood for buying and selling sawtimber. Therefore, there is a need to identify accurate and precise methods of estimating whole tree biomass and merchantable biomass of harvested trees as well as total standing biomass of live timber for resource assessments and silvicultural planning. In this study, we compared the traditional whole tree diameter-based biomass model currently used with alternative model forms fitted to tree data collected from four southeast Missouri species. Additionally, we reassessed each nonlinear model with total tree height and crown ratio included as covariates. Finally, we assessed the best model identified from the aforementioned analyses for estimation of merchantable biomass. Results of the analysis yielded several nonlinear models for estimating aboveground tree biomass with relatively high precision and low bias. The optimal model was chosen based upon precision and bias of estimation for all four species and was shown to produce precise estimates of merchantable biomass as well as total aboveground biomass for each species.
Bilingualism Affects Infant Cognition: Insights From New and Open Data

Abstract Bilingualism has been hypothesized to shape cognitive abilities across the lifespan. Here, we examined the replicability of a seminal study that showed monolingual–bilingual differences in infancy (Kovács & Mehler, 2009a) by collecting new data from 7-month-olds and 20-month-olds and reanalyzing three open datasets from 7- to 9-month-olds (D’Souza et al., 2020; Kalashnikova et al., 2020, 2021). Infants from all studies (N = 222) were tested in an anticipatory eye-tracking paradigm, where they learned to use a cue to anticipate a reward presented on one side of a screen during Training, and the opposite side at Test. To correctly anticipate the reward at Test, infants had to update their previously learned behavior. Across four out of five studies, a fine-grained analysis of infants’ anticipations showed that bilinguals were better able to update the previously learned response at Test, which could be related to bilinguals’ weaker initial learning during Training. However, in one study of 7-month-olds, we observed the opposite pattern: bilinguals performed better during Training, and monolinguals performed better at Test. These results show that bilingualism affects how infants process information during learning. We also highlight the potential of open science to advance our understanding of language development.
Experimental and analytical study of the longitudinal aerodynamic characteristics of analytically and empirically designed Strake-wing configurations at subcritical speeds

Sixteen analytically and empirically designed strakes have been tested experimentally on a wing-body at three subcritical speeds in such a way as to isolate the strake-forebody loads from the wing-afterbody loads. Analytical estimates for these longitudinal results are made using the suction analogy and the augmented vortex lift concepts. The synergistic data are reasonably well estimated or bracketed by the high- and low-angle-of-attack vortex lift theories over the Mach number range and up to maximum lift or strake-vortex breakdown over the wing. Also, the strake geometry is very important in the maximum lift value generated and the lift efficiency of a given additional area. Increasing size and slenderness ratios are important is generating lift efficiently, but similar efficiency can also be achieved by designing a strake with approximately half the area of the largest gothic strake tested. These results correlate well with strake-vortex-breakdown observations in the water tunnel.
Tail-design requirements for satisfactory spin recovery for personal-owner-type light airplanes

Abstract : Models used in free-flight wind tunnel had wing loading and span comparable to those of typical personal light aircraft. Analysis of those models showing good spin recovery characteristics indicated that the minimum value of the tail-damping-power factor should be increased with an increase in the relative density and mass distribution along the wings of the model. Graphs show variation of relative-density factor with wing loading and span and vertical tail design requirements.
Effects of ginsenoside Rb1 on skeletal muscle insulin resistance and adenosine monophosphate-activated protein kinase signaling pathway in obese mice

Objectives: The objective of the study is to observe the effects of ginsenoside Rb1 on indexes of body weight, body composition, blood lipid, skeletal muscle endurance, and insulin sensitivity in obese mice, probe into its pharmacological action, and further explore its effects on adenosine monophosphate-activated protein kinase (AMPK) signaling pathway in skeletal muscle. Materials and Methods: Eight-week-old C57BL/6J mice were fed with high-fat diet for 12 weeks to establish obese mouse model. The model-establishment obese mice were randomly divided into three groups including model control group, metformin group, and ginsenoside Rb1 group. In the normal control group, normal diet was administered. The intervention period was 8 weeks. Body weight and food intake of the mice were measured regularly every week. The treadmill test was performed at weeks 3 and 7, and the oral glucose tolerance test was carried out at weeks 4 and 8. Body composition of the mice was detected by applying NMR Animal Body Composition Analyzer at week 8. Four parameters of blood lipids and free fatty acid (FFA) levels were detected. The mRNA expression of AMPKα and proliferator-activated receptor gamma coactivator-1α (PGC-1α) in skeletal muscle was examined by real-time fluorescence quantitative polymerase chain reaction, and the influence of ginsenoside Rb1 on protein expression of AMPKα, p-AMPKα, and PGC-1α was observed by western blotting. Results: The body weight (since the 5th week of drug administration) and food intake of the mice in the ginsenoside Rb1 group were significantly lower than those in the model control group (P < 0.05) in a time-dependent manner. Ginsenoside Rb1 could significantly reduce the levels of triglyceride and low-density lipoprotein cholesterol, while increase the high-density lipoprotein cholesterol level (P < 0.05). In addition, ginsenoside Rb1 could reduce the serum FFA level (P < 0.05). After the administration of ginsenoside Rb1 for 8 weeks, the body fat mass of obese mice decreased and the lean mass increased (P < 0.05). The skeletal muscle endurance and the oral glucose tolerance of the obese mice improved using ginsenoside Rb1. At the molecular level, ginsenoside Rb1 could up-regulate the mRNA and protein expression of AMPKα in skeletal muscle, and increase the content of p-AMPK protein significantly (P < 0.01). At the same time, the mRNA and protein level of PGC-1α was also un-regulated, correspondingly (P < 0.01). Conclusion: Ginsenoside Rb1 exerts effects on reducing body weight, decreasing blood lipid levels, enhancing the skeletal muscle endurance, and increasing the insulin sensitivity in obese mice by activating the related proteins in AMPK signaling pathway in skeletal muscle.
Awareness and Attitude Towards Organ Donation Under Transplantation of Human Organ Act 1994 amongst Medical Students in Teaching Hospital at Chennai

Organ transplantation, a treatment procedure to save the lives of patients with end stage organ failure is a grey zone about which the multitude is still unaware. The attitude of the Indian population towards organ donation is very bleak accounting to a rate of 0.26 per ten lakh people. A cross-sectional study was conducted among 300 medical students with a pre-tested, semi structured questionnaire to assess their knowledge and attitude regarding organ donation. Data collected was statistically analysed using SPSS software. 96% of the study participants were aware about organ donation and 98.5% believed that organ donation should be promoted. 4.8% participants of this study had already signed up the organ donation form . Willingness for organ donation was significantly associated with knowledge about organ donation. When compared to boys, girls reported higher mean scores in knowledge (8.48±1.11) and attitude (7.38±0.85). Though most of the students had adequate knowledge, gaps existed in their practices. By providing adequate knowledge and orientation about the topic, all the Medical graduates can become the potential organ donors in the future and also abide by the law of land by motivating the patients to donate their organs.