Miracle-dz/UniFAR-FTUs huggingface dataset:
CAA-RPM prediction and validation of slat setting influence on broadband high-lift noise generation

Broadband sound generated at the slat of a three-element high-lift wing is simulated with a CAA method. Especially, the effect of different slat and gap settings is studied and the results are validated with measurements. The applied method rests on the use of steady Reynolds Averaged Navier-Stokes (RANS) simulation to prescribe the time-averaged motion of turbulent flow. By means of synthetic turbulence generated with the Random Particle-Mesh (RPM) method the steady one-point statistics (e.g. turbulent kinetic energy) and turbulent length- and time-scales of RANS are translated into fluctuations with statistics that very accurately reproduce the spatial target distributions of RANS. The synthetic fluctuations are used to prescribe sound sources which drive linear acoustic perturbation equations. The whole approach represents a methodology to solve statistical noise theory with state-of-the-art Computational Aeroacoustics (CAA) tools in the timedomain. The comparison with experiments are conducted for four selected settings, chosen from a matrix comprising in total 43 individual slat-gap and overlap combinations. CAA simulations are performed for all matrix positions. The CAA computations are obtained as blind predictions prior to the measurements conducted in the AWB wind tunnel. Good agreement of the noise trends are found between CAA and experiments. The difference in level between the selected configurations is obtained qualitatively and quantitatively by CAA.
Preimplantation Genetic Testing: A Perceptual Study From the Eastern Province, Saudi Arabia

Background: Chromosomal abnormalities affect many children which lead to high rates of morbidity and mortality among them. So, preimplantation genetic testing (PGT) is an evolving technology used to detect a specific genetic disorder in embryos of a couple known to be carriers or affected by a specific mutation. Similarly, it could be used in advanced maternal age which is a high risk of chromosomal abnormalities. Although PGT is a solution for many inherited chromosomal disorders, many ethical dilemmas surround its application. Thus, the aim of this study is to evaluate the community awareness and acceptance of PGT which will eventually lead to a healthier society through disease-free babies in Eastern Province, Kingdom of Saudi Arabia (KSA). Methodology: A qualitative cross-sectional questionnaire-based study was conducted within the population of the Eastern Province of Saudi Arabia. The questionnaire was designed in Arabic and distributed electronically through social media platforms. Results: The study included 837 participants, whose ages ranged from 18 to 65 years with the mean age 33.5 ± 11.9 years. Good awareness and acceptance were detected among 53.7% of the old aged group (50 years or more) compared to 39.5% of the young age group. Also, 44.9% of female participants had good awareness in comparison to 34.2% of males (p=.033). Participants with a higher number of children had significantly higher awareness and acceptance of PGT. Also, 44.3% of participants who knew someone in need of assisted reproductive technology, had good awareness and acceptance levels compared to 36.9% of those who did not (p=.033). Conclusion: The perception of Eastern Province’s Saudi citizens toward PGT is found to be low. Increasing their perception toward such technology is needed as it is known that many chromosomal abnormalities are prevalent among this population, particularly sickle cell disease. Achieving this goal will eventually lead to decrease the burden of prevalent inherited diseases. Since Saudis' opinions are almost influenced by cultural and religious points of view, care should be given to these aspects.
The Application of Machine Learning ICA-VMD in an Intelligent Diagnosis System in a Low SNR Environment

This paper proposes a new method called independent component analysis–variational mode decomposition (ICA-VMD), which combines ICA and VMD. The purpose is to study the application of ICA-VMD in low signal-to-noise ratio (SNR) signal processing and data analysis. ICA is a very important method in the field of machine learning. It is an unsupervised learning algorithm that can dig out the independent factors hidden in the observation signal. The VMD method estimates each signal component by solving the frequency domain variational optimization problem, and it is very suitable for mechanical fault diagnosis. The advantage of ICA-VMD is that it requires two sensory cues to distinguish the original source from the unwanted noise. In the three cases studied here, the original source was first contaminated by white Gaussian noise. The three cases in this study are under different SNR conditions. The SNR in the first case is –6.46 dB, the SNR in the second case is –21.3728, and the SNR in the third case is –46.8177. The simulation results show that the ICA-VMD method can effectively recover the original source from the contaminated data. It is hoped that, in the future, there will be new discoveries and advances in science and technology to solve the noise interference problem through this method.
Technological Assessment of Radio Frequency Identification Technology for Indoor Localization

Indoor localization is needed for guiding people who are not familiar with a facility. This need is more critical when guidance is needed to locate people or objects that need immediate attention. For example, an inexperienced facility worker might need to locate a building component (e.g., leaking pipe) for repair to prevent any damage to a facility or its residents. In such situations, an approach that can help the user to reach his/her destination point (i.e., a component of interest or a specific location in a facility) based on his/her current location is desired. To provide such guidance, the location of a person needs to be determined at a given point in time. This process is known as localization. The objective of this research study is to determine the technological viability of using radio frequency identification (RFID) to support localization. To assess the capability of RFID for localization, the writers conducted multiple field tests under real operating conditions within a facility at Carne.
Effects of space radiation damage and temperature on the noise in CCDs and LDD MOS transistors

Lightly doped drain (LDD) MOS transistors were subjected to proton radiation damage representative of the damage they would receive on a typical orbital space telescope mission. The noise spectral density was measured as a function of gate voltage, temperature and total radiation dose. These data were used to model the resultant noise lower limit read for that transistor when used as the charge-conversion, output stage of a charge-coupled-device (CDD) imaging array detector. Very clear evidence of excess noise being added to the CCD output as a function of radiation was found. It is possible to select combinations of temperature, CCD dual-correlated sample time constant and gate voltage which minimize the performance degradation due to this excess noise. >
Moisture Stability of Perovskite Solar Cells Processed in Supercritical Carbon Dioxide

Performance degradation under environmental conditions currently limits the practical utility of perovskite-based solar cells. The moisture stability of CH3NH3PbI3 perovskite films and solar cells was measured during exposure to three different levels of relative humidity. The films were crystallized at two different temperatures with and without simultaneous exposure to supercritical carbon dioxide. The film crystallinity, optical absorption, and device photoconversion efficiency was measured over time for three relative humidity levels and both crystallization methods. It was determined that film crystallization in supercritical CO2 resulted in significant improvement in moisture stability for films processed at 50 °C, but negligible improvement in stability for films processed at 100 °C.
Molecular characterization of Blastocystis sp. in Chinese bamboo rats (Rhizomys sinensis)

Blastocystis sp. , a parasitic eukaryote, widely colonizes the intestines of humans and a large number of animals, including rodents and lagomorphs. More than 30 million bamboo rats (Rhizomys sinensis) are farmed in China as a source of meat for human consumption. However, there have been no published articles on Blastocystis infection in Chinese bamboo rats prior to the present study. Herein, 480 fresh faecal samples were collected from R. sinensis on six farms located in four cities (Wugang, Chenzhou, Huaihua and Jishou) in Hunan Province, south-central China, and were examined for Blastocystis infection using polymerase chain reaction (PCR) targeting the small subunit ribosomal RNA (SSU rRNA) gene. The total prevalence of Blastocystis in R. sinensis was 4.58% (22/480), and significant differences in prevalence were detected among four age groups (<6 months, 6–12 months, 12–24 months and >24 months), with the highest prevalence (7.81%) in rats aged 6–12 months but with no positive samples in rats over 24 months. All farms, except for one in Jishou, were positive for Blastocystis infection, with the prevalence ranging from 1.80% to 7.27%. Sequence and phylogenetic analyses revealed two potentially zoonotic subtypes (namely ST4 and ST5) in these rodents, with ST4 predominant in all except one farm in Huaihua. Seven and five sequence types were identified within ST4 and ST5, respectively. This is the first report of Blastocystis infection in Chinese bamboo rats and the findings suggest the potential of R. sinensis to transmit Blastocystis to humans.
An Innovative Way of Collecting Data

>> addresses. One thousand seven hundred and thirteen were remailed properly completed, 90% within 4 days. Most respondents were residents of North America (64%) and Europe (21 %), male (87%), and 30 years old on average. Environmental destruction (52%) was mentioned as the primary problem, followed by violence (45%) and unemployment (45%). Education (71 %) was the most frequently proposed solution to future problems. It is obvious that Internet surveys at this time are not representative of the total population. However, they open new dimensions in the interrogation of experts and opinion leaders, especially considering their efficiency and potential for automation.
Elimination of the Femoral Neck in Measuring Femoral Version Allows for Less Variance in Interobserver Reliability

Background and Objectives: Producing consistent measures of femoral version amongst observers are necessary to allow for an assessment of version for possible corrective procedures. The purpose of this study was to compare two computed tomography (CT)-based techniques for the reliability of measuring femoral version amongst observers. Materials and Methods: Review was performed for 15 patients post-femoral nailing for comminuted (Winquist III and IV) femoral shaft fractures where CT scanograms were obtained. Two CT-based techniques were utilized to measure femoral version by five observers. Results: The mean femoral version, when utilizing a proximal line drawn down the center of the femoral head-neck through CT, was 9.50 ± 4.82°, while the method utilizing the head and shaft at lesser trochanter centers produced a mean version of 18.73 ± 2.69°. A significant difference was noted between these two (p ≤ 0.001). The method of measuring in the center of the femoral head and neck produced an intraclass correlation coefficient (ICC) of 0.960 with a 95% confidence interval lower bound of 0.909 and upper bound of 0.982. For the method assessing version via the center of the head and shaft at the lesser trochanter region, the ICC was 0.993 with a 95% confidence interval lower bound of 0.987 and an upper bound of 0.996. Conclusions: The method of measuring version proximally through a CT image of the femoral head–neck versus overlaying the femoral head with the femoral shaft at the most prominent aspect of the lesser trochanter produces differing version measurements by roughly 10° while yielding an almost perfect interobserver reliability in the new technique. Both techniques result in significantly high interobserver reliability.
The Effect of Brand Innovativeness on Product Attractiveness

The purpose of this study is to examine the relationship between brand innovativeness and product attractiveness for luxury brands‟ customers in Mansoura sporting clubs. The questionnaire was distributed to sporting clubs‟ members. 479 out of 525 questionnaires were collected. 400 questionnaires were valid and free of missing data. Multiple regression analysis is employed to test the research hypotheses using Warp PLS 0.6. The research results revealed that brand innovativeness is positively associated with product attractiveness.
R&D-related Capabilities of Technology Born Globals

R&D-related capabilities are the cornerstone of existence and competitive advantage of a large number of born globals. However, we know very little about the composition and functioning of these capabilities in international SMEs, considering their resource limitations and international competition. This article investigates R&D-related capabilities of technology-based born globals in order to find out the aspects that contribute to their competitive advantage in the long term. A longitudinal case study of a successful Danish technology born global is conducted to address this purpose. Among the findings are the importance of introducing R&D planning and implementation structures, as well as knowledge sharing processes in the organization, the difficulty of sustaining ambidextrous processes, the importance of extensive environmental scanning, as well as ongoing collaboration among different managerial levels and functions.
A Simple Multiplex Reverse Transcription-PCR Method for the Diagnosis of L-A and M Totiviruses in Saccharomyces cerevisiae

The killer phenomenon in S. cerevisiae yeast cells provides the opportunity to study host-virus interactions in a eukaryotic model. Therefore, the development of simple methods for their detection significantly facilitates their study. ABSTRACT Killer yeasts and their toxins have many potential applications in environmental, medical, and industrial biotechnology. The killer phenotype in Saccharomyces cerevisiae relies on the cytoplasmic persistence of two dsRNA viruses, L-A and M. M encodes the toxin, and L-A provides proteins for expression, replication, and capsids for both viruses. Yeast screening and characterization of this trait are usually performed phenotypically based on their toxin production and immunity. In this study, we describe a simple and specific reverse transcription (RT) multiplex PCR assay for direct diagnosis of the dsRNA totivirus genomes associated with the killer trait in the S. cerevisiae yeast. This method obviates RNA purification steps and primer addition to the RT reaction. Using a mixture of specific primers at the PCR step, this multiplex RT-PCR protocol provided an accurate diagnosis of both L-A and M totivirus in all its known variants, L-A-1/M1, L-A-2/M2, L-A-28/M28, and L-A-lus/Mlus, found in infected killer yeasts. Using this method, the expected L-A-2/M2 totivirus associations in natural wine yeasts cells were identified but, importantly, asymptomatic L-A-2/M2 infected cells were found in addition to unexpected L-A-lus/M2 totiviral associations. IMPORTANCE The killer phenomenon in S. cerevisiae yeast cells provides the opportunity to study host-virus interactions in a eukaryotic model. Therefore, the development of simple methods for their detection significantly facilitates their study. The simplified multiplex RT-PCR protocol described here provides a useful and accurate tool for the genotypic characterization of yeast totiviruses in killer yeast cells. The killer trait depended on two dsRNA totiviruses, L-A and M. Each M dsRNA depends on a specific helper L-A virus. Thus, direct genotyping by the described method also provided valuable insights into L-A/M viral associations and their coadaptational events in nature.
Effect of vortical structures on cavitation on impeller blades in pumps with suction chambers

A double-suction pump operating at relatively low suction head and with poorly designed suction chambers was analysed by the computational fluid dynamics (CFD). Two impeller geometries were considered - one with thicker and one with thin layer of predicted vapour cavity on blades. Steady-state simulations (SSS) were performed with shear-stress- transport (SST) turbulence model with curvature correction (CC). Transient simulations were performed with scale-adaptive-simulation SST (SAS-SST) model with CC. For both analysed geometries, transient simulations predicted higher maximal thickness of cavities than SSS. In transient simulations it was observed that, because of poor design of suction chambers, near the rib of the suction chambers two stronger (non-cavitating) vortices appeared. Near the main vortical structures, vortices with smaller intensity appeared, with direction of rotation opposite to the main vortices. Depending on their position and direction of rotation, the vortices either decreased or increased the extent of cavitation. The most important adverse effect was to increase the size of the sheet cavity by local elongation and thickening. The local effect seemed to be more pronounced for impeller with smaller thickness of sheet cavity.
Control and testing of a dynamic voltage restorer (DVR) at medium voltage level

The dynamic voltage restorer (DVR) has become popular as a cost effective solution for the protection of sensitive loads from voltage sags. Implementations of the DVR have been proposed at both a low voltage (LV) level, as well as a medium voltage (MV) level; and give an opportunity to protect high power sensitive loads from voltage sags. This paper reports practical test results obtained on a medium voltage (10 kV) level using a DVR at a distribution test facility in Kyndby, Denmark. The DVR was designed to protect a 400 kVA load from a 0.5 p.u. maximum voltage sag. The reported DVR verifies the use of a combined feed-forward and feed-back technique of the controller and it obtains both good transient and steady state responses. The effect of the DVR on the system is experimentally investigated under both faulted and nonfaulted system states, for a variety of linear and nonlinear loads. Variable duration voltage sags were created using a controllable LV breaker fed by a 630 kVA distribution transformer placed upstream of the sensitive load. The fault currents in excess of 12 kA were designed and created to obtain the required voltage sags.
Advances in Image Reconstruction Methods for Real-Time Magnetic Resonance Thermometry

Magnetic Resonance Imaging (MRI) has been widely used in cancer treatment planning, which takes the advantage of high-resolution and high-contrast provided by it. The raw data collected in the MRI can also be used to obtain the temperature maps and has been explored for performing MR thermometry. This review article describes the methods that are used in performing MR thermometry, with an emphasis on reconstruction methods that are useful to obtain these temperature maps in real timefor large region of interest. This article also proposes a prior-image constrained reconstruction method for temperature reconstruction in MRthermometry, and a systematic comparison using ex-vivo tissue experiments with state of the art reconstruction method is presented.
診断精度研究のバイアスリスク評価ツールQUADAS－2：a Revised Tool for the Quality Assessment of Diagnostic Accuracy Studies 2 の活用

The QUADAS（Quality Assessment of Diagnostic Accuracy Studies）tool, a quality assessment tool of diagnostic studies was developed in 2003, and thereafter the Cochrane Collaboration recommended QUADAS for use in systematic reviews of diagnostic accuracy. Following further revision, mainly by the GRADE（Grading of Recommendations Assessment, Development and Evaluation） working group, QUADAS－2 was released in 2011 （http://www.bris. ac.uk/quadas/）. With the permission of the original authors, Japanese language localization was undertaken and released on the MINDS website in April 2014（http://minds.jcqhc. or.jp）, and release on the QUADAS website is scheduled for May 2014.The original QUADAS tool includes 14 items assessing bias risk, applicability, and for reporting quality. The QUADAS－2 tool consists of 4 phases：1）summarization of the review question, 2）tailoring of the tool and the production of review－specific guidance, 3）construction of a flow diagram for the primary study, 4）assessment of bias and applicability. The last phase is applicable to 4 domains：patient selection, index test, reference standards, and flow and timing. Each domain is assessed according to bias risk using signalling questions of“yes,”“no,”or“unclear. ”The first 3 domains are also assessed in terms of applicability. This tool will facilitate increased transparency in the rating of bias and improve applicability in the systematic review of diagnostic accuracy studies.
Going Further Than an EERS: Danish Lessons on Maximizing Whole Energy System Efficiency

In the United States, energy system planning tends to be done on a utility-specific basis (utility resource planning, natural gas system planning, etc.). To the extent that this planning considers energy efficiency opportunities, they are generally viewed on an individual program(and measure-) level basis. Rarely are larger systemwide and cross-fuel efficiencies considered as opportunities by electric, natural gas, and larger energy system planners. In contrast, certain European countries have been identifying and pursuing systemwide efficiency opportunities within their national and local energy system planning activities for decades. In Denmark especially, local municipalities and national energy planners consider resources like industrial and commercial waste heat and transportation energy use concurrently with electric system planning. In Denmark, extensive district heating systems rely on heat produced at combined heat and power stations or municipal waste incineration plants to meet local heat needs, while simultaneously generated electricity meets a large portion of electric needs. And in contrast with the United States, renewable energy goals and policies are developed at the national level in concert with other energy planning efforts. This paper summarizes the key aspects of Denmark’s comprehensive national and local electric and thermal energy planning processes. It discusses how lessons from the Danish experience might be applied to the United States, and how system efficiencies might be considered within existing U.S. energy policy and planning contexts. The paper provides policymakers and energy efficiency advocates with some suggested paths forward for better incorporating systemwide efficiency opportunities in future energy system plans and efficiency resource assessments. It highlights aspects of the Danish energy planning process that might be translatable to the American policy and regulatory context, and discusses possible technical and policy approaches that might better encourage such systemwide thinking in the United States.