Miracle-dz/UniFAR-FTUs huggingface dataset:
Scaling the self-propulsive performance of pitching and heaving flexible plates

Abstract Self-propulsive performances of the flexible plates undergoing pitching and heaving motions are investigated numerically. The effects of multiple key dimensionless parameters are considered, such as bending stiffness, heaving amplitude, pitching amplitude and flapping frequency. Despite so many influence factors, results indicate that the cruising speed $U$ (or the cruising Reynolds number $Re_c$), the thrust $T$ and the input power $P$ can be summarized as some simple scaling laws vs the flapping Reynolds number $Re_f$. In the heaving motion, the scaling laws may be not fully independent of bending stiffness because in the motion the role of bending stiffness is more complicated for the thrust generation. Our scaling laws are well supported by biological data on swimming aquatic animals.
Vortex breakdown in variable-density gaseous swirling jets

Abstract Theoretical predictions and numerical simulations are used to determine the transition to bubble and conical vortex breakdown in low-Mach-number laminar axisymmetric variable-density swirling jets. A critical value of the swirl number $S$ for the onset of the bubble ($S^*_B$) and the cone ($S^*_C$) is determined as the jet-to-ambient density ratio $\varLambda$ is varied, with the temperature dependence of the gas density and viscosity appropriate to that of air. The criterion of failure of the slender quasi-cylindrical approximation predicts $S^*_B$ that decreases with increasing values of $\varLambda$ for a jet in solid-body rotation emerging sharply into a quiescent atmosphere. In addition, a new criterion for the onset of conical breakdown is derived from divergence of the initial value of the radial spreading rate of the jet occurring at $S^*_C$, found to be independent of $\varLambda$, in an asymptotic analysis for small distances from the inlet plane. To maintain stable flow in the unsteady numerical simulations, an effective Reynolds number $Re_{eff}$, defined employing the geometric mean of the viscosity in the jet and ambient atmosphere, is fixed at $Re_{eff}=200$ for all $\varLambda$. Similar to the theoretical predictions, numerical calculations of $S^*_B$ decrease monotonically as $\varLambda$ is increased. The critical swirl numbers for the cone, $S^*_C$, are found to depend strongly on viscous effects; for $\varLambda =1/5$, the low jet Reynolds number (51) at $Re_{eff}=200$ delays the transition to the cone, while for $\varLambda =5$ at $Re_{eff}=200$, the large increase in kinematic viscosity in the external fluid produces a similar trend, significantly increasing $S^*_C$.
Detecting Simulative Ship Bubbles Wake by Pulsed Laser

Detecting method of the ship bubbles wake based on the backscatter is analyzed.An experimental system according to this detecting method is designed and established.This system is placed into a large water pond to detect simulative ship bubbles wake.It can conclude from the experimental result that this experimental system can detect simulative ship bubbles wake preferably.
Reconquest of the Subjective

Psychiatric research over the past three decades has now acquired the esteem it clearly deserves. Since empirical research presupposes definition of the object one studies and availability of instruments to measure it, operationalisation of diagnosis and development of psychometric instruments have become major concerns for psychiatry. This progress was promoted to a large degree by biological psychiatry. The search for biological underpinnings of abnormal human behaviour and the study of the efficacy and mechanism of action of biological treatments are both contingent on the use of standardised diagnoses and objective measurement. Biological psychiatry moved in recent years from a minority position into the mainstream, and its methods became the standard approach, especially in research.
Effects of user experience on technology acceptance: the case of foss

Free and open source software (FOSS) movement essentially arises like answer to the evolution occurred in the market from the software, characterized by the closing of the source code. Furthermore, some FOSS characteristics, such as (1) the advance of this movement and (2) the attractiveness that contributes the voluntary and cooperative work, have increased the interest of the users towards free software. Traditionally, research in FOSS has focused on identifying individual personal motives for participating in the development of a FOSS project, analyzing specific FOSS solutions, or the FOSS movement itself. Nevertheless, the advantages of the FOSS for users and the effect of the demographic dimensions on user acceptance for FOSS have been two research topics with little attention. Specifically, this paper�s aim is to focus on the influence of the user experience with FOSS the FOSS acceptance. Based on the literature, user experience is an essential demographic dimension for explaining the Information Systems acceptance. With this purpose, the authors have developed a research model based on the Technological Acceptance Model (TAM).
Design and performance of a 96 cell thermally controlled multi-cell instrument

This paper describes the design, construction, and evaluation of a thermally controlled multi-cell instrument containing ninety-six independently controlled cells (designated as the TCMCI-96). Each cell was designed to operate over a temperature range of -20oC to +50oC with accuracy to the setpoint of ± 0.2oC compared to the setpoint requested by the operator at any point within the specific cell temperature cycle. The TCMCI-96 instrument was designed to meet the temperature range and accuracy objectives as well as a number of engineering design objectives to improve overall utility and serviceability when compared to the instrument reported by McLaughlin et al. (1985) and a previous one hundred and seventy-six cell version (designated as the TCMCI-176). This paper describes the design and illustrates the utility, flexibility, and accuracy of the TCMCI-96 by presenting data from biological studies conducted within the TCMCI facility at the Saskatoon Research and Development Centre. The temperature accuracy performance objective was not met as the TCMCI-96 achieved a ± 0.3oC accuracy compared to the set point. The temperature range and cycle frequency objectives were met and can be reliably used provided humidity around the instrument is controlled correctly.
Integrated Ψ-Type Photonic Polarization Diversity Receivers for Wireless Radio-over-Fiber Communication Links

In this work, we present novel integrated Ψ-type photonic polarization diversity receivers (PPDRs), comprising two high-frequency 1.55 μm photodiodes (PDs) applicable in wireless radio-over-fiber (RoF) communication links. Therefore, geometries in the overall optical beam splitter (OBS) output section, e.g. optical mode-guiding stripe height, gap between the optical waveguides (WGs), WG widths and coupling length, are considered to obtain high polarization diversity for the developed PPDRs. Moreover, we demonstrate first experimental achievements based on the coupling length variation. In comparison to a conventional 3-dB Y-coupler-integrated device, the experimental results show a polarization-dependent behavior of the PPDR with a maximum polarization dependent loss (PDL) of >3 dB (e.g. measured at the WG-PDs) due to the integrated Ψ-type OBS output section. Taking further geometry parameters of the PPDR into consideration, an increased PDL is expected for the monolithically integrated WG-PDs.
Sediment phosphorus composition controls hot spots and hot moments of internal loading in a temperate reservoir

Phosphorus (P) flux across the sediment-water interface in lakes and reservoirs responds to external perturbations within the context of sediment characteristics. Lentic ecosystems experience profound spatiotemporal heterogeneity in the mechanisms that control sediment P fluxes, likely producing hot spots and hot moments of internal loading. However, spatiotemporal variation in P fluxes remains poorly quantified, particularly in the context of sediment chemistry as a controlling variable. We measured P flux rates and mobile sediment P forms along the longitudinal gradient of a temperate reservoir every two months from February to October of 2020. Both aerobic and anaerobic processes mobilized sediment P throughout the year. High flux rates at littoral sampling sites (8.4 and 9.7 mg P m-2 day-1) occurred in late summer under oxic conditions and mobilized labile organic P. High fluxes at the profundal site coincided with hypolimnetic anoxia under ice cover and in mid-summer (11.2 and 17.2 mg P m-2 day-1, respectively) and released redox-sensitive P. Several high fluxes substantially skewed the flux rate distribution, providing evidence of hot spots and hot moments of internal loading. We further analyzed the ecosystem-level effects of elevated sediment P release by scaling measured flux rates to representative areas of the lakebed and estimating P loads. We found that aerobic P release from littoral sites had an outsized impact on total loads. Our findings demonstrate that focusing solely on flux rates without ecosystem context can lead to misidentification of the dominant biogeochemical mechanisms involved and ultimately impede eutrophication management.
Performance Development of Space Vector Pulse Width Modulation for Induction Motor Drive Using Artificial Intelligence

Space vector pulse width modulation (SVPWM) technique is an advanced computation-intensive PWM method. It is the best among all PWM techniques for three-phase induction motor (TIM) drive applications because of its superior performance characteristics. In this paper, the use of artificial neural network (ANN) based SVPWM technique avoids the computational complex used in conventional SVM implementation. An ANN scheme structure is suggested to identify and approximate the conventional SVPWM for decrease the computational problem. Moreover, proportional-integral (PI) controller tuning is achieved using a particle swarm optimization (PSO) algorithm to improve the TIM speed controller’s response performance. By designing an appropriate PSO algorithm, kp and ki of the PI speed controller parameters are tuned for TIM to attain the best parameter values.
On the Usefulness of Differentiated Transient/Steady-state Processing in Machine Recognition of Musical Instruments

This paper addresses the usefulness of the segmentation of musical sounds into transient/non-transient parts for the task of machine recognition of musical instruments. We put into light the discriminative power of the attack-transient segments on the basis of objective criteria, consistent with the well-known psychoacoustics findings. The sound database used is composed of real-world mono-instrument phrases. Moreover, we show that, paradoxically, it is not always optimal to consider such a segmentation of the audio signal in a machine recognition system for a given decision window. Our evaluation exploits efficient automatic segmentation techniques, a wide variety of signal processing features as well as feature selection algorithms and support vector machine classification.
An exploration of the maturity model concept as a vehicle for higher education institutions to assess their capability to address student engagement : a work in progress

Gaining a competitive edge in the area of the engagement, success and retention of commencing students is a significant issue in higher education, made more so currently because of the considerable and increasing pressure on teaching and learning from the new standards framework and performance funding. This paper introduces the concept of maturity models (MMs) and their application to assessing the capability of higher education institutions (HEIs) to address student engagement, success and retention (SESR). A concise description of the features of maturity models is presented with reference to an SESR-MM currently being developed. The SESR-MM is proposed as a viable instrument for assisting HEIs in the management and improvement of their SESR activities.
The effects of restricted suckling and early weaning on cow reproduction and weaner production performance in Gudali cattle

The effects of weaning calves at 180 days (early weaning – EW) or at 240 (control – CW) days following restricted suckling (RS) or unrestricted suckling (US) on the post-partum reproductive performance of cows and calf growth rates were investigated using 40 cow-calf pairs of Ngaoundere Gudali zebu cattle in Cameroon. Uterine involution, oestrous activity and the reproductive tract score (RTS) of postpartum (PP) cows and the pre- and post-weaning calf growth rates were compared. RS significantly accelerated uterine involution and reduced the calving to conception interval by 40 days. EW resulted in slightly lower weaning weights, but had no effect on the PP reproductive performance of the dams. RS and EW calves experienced slower growth and lower weaning weights. At weaning, the US-CW calves were 34.9, 28.7 and 71.1 kg heavier compared to the RS-CW, US-EW and RS-EW groups, respectively. However, RS was highly detrimental to post-weaning ADG up to a yearling age, while the EW calves showed compensatory growth during this period. Early weaning seems to be a management practice holding advantages in Ngaoundere Gudali cattle under local conditions and warrants further investigation.
Human XIST RNA acts early to condense architecture which facilitates A-repeat density-dependent initiation of gene silencing

XIST RNA triggers gene silencing chromosome-wide and transforms a euchromatic chromosome into a condensed Barr body. XIST is heavily studied in mouse ES cells, but here an inducible iPSC system allows analysis of initial steps in human chromosome silencing, revealing key points not known in either system. XIST RNA distribution was examined relative to biochemical and transcriptional changes directly within architecture of individual chromosome territories. Within a few hours of induction, XIST transcripts distribute as a large “sparse zone” and a smaller “dense zone”, which, importantly, exhibit different effects on chromatin. Very sparse transcripts immediately trigger bright staining for H2AK119ub and CIZ1, a structural matrix protein. In contrast, H3K27me3 enrichment comes hours later and is much more restricted to the smaller dense RNA zone, which enlarges as the chromosome condenses. Importantly, silencing of several genes examined occurred well after architectural condensation, suggesting a possibly separable step. Surprisingly, we show the small A-repeat fragment of XIST can alone silence endogenous genes; however, results indicate this requires high local RNA density for effective histone deacetylation. Results support a concept whereby XIST RNA acts directly to condense the chromosome territory, comprised largely of non-coding DNA, which facilitates a required step to initiate gene silencing by the A-repeat. Hence, compacted architecture is not a consequence of collective gene silencing, but an early step required for chromosome-wide gene silencing.
Carbon Nanotube-Prussian Blue Spongiform Adsorbent for Selective Capture of Cesium and Strontium

Prussian blue analogue nickel ferrocyanide (NiPB) decorated carbon nanotube sponge (CNT sponge) was prepared as a newly designed spongiform adsorbent. This composite material was characterized by scanning electron microscopy (SEM), inductively coupled plasma (ICP) and tested in adsorption experiments. Results show that the CNT-NiPB sponge was equipped with large holes and porous structure, a large number of MWNTs and NiPB particles uniformly deposited on the surface and internal cavities. This adsorbent CNT-NiPB sponge showed a good adsorption selectivity of cesium and strontium in mixed aqueous solution, which is mainly induced by the ion exchange reaction of NiPB and metal ions. The novel spongiform adsorbent might have a promise prospect in radioactive wastewater treatment applications.
Kinematics and Dynamics Simulation on Model of G6400ZC Diesel Engine

Kinematics and dynamics simulation on model of G6400ZC standard version diesel engine is carried out on the platform of software UG/ADAMS to investigate the kinematical and dynamic characteristic of the main parts.The result of simulation is very conformable with theoretical computation,which supplies helpful information for optimization design and modification of this engine.
Quantitative mapping of dolomitization using close-range hyperspectral imaging: Kimmeridgian carbonate ramp, Alacón, NE Spain

Geological models from outcrop analogues are often utilized as a guide, or soft constraint, for distributing reservoir properties in subsurface models. In carbonate outcrops, combined sequence stratigraphic, sedimentological, and petrographic studies constrain the heterogeneity of geobodies and diagenetic processes, including dolomitization, at multiple scales. High-resolution digital outcrop modeling further aids geometric mapping, geobody definition, and statistical analysis, though its usefulness for detailed mineralogical and lithological mapping is limited. Hyperspectral imaging offers enhanced spectral resolution for mapping subtle mineralogical differences. In both outcrops and subsurface, differences in carbonate composition can provide key information for distributing porosity and permeability, yet this mapping is highly challenging in field studies due to access difficulties, visible material differences, and sampling resolution. Spectral analysis of limestone–dolomite ratios conducted in laboratory studies indicates theoretical measures for quantitative identification and mapping of dolomite degrees within carbonate rocks. In this study, close-range hyperspectral imaging is applied to outcrops of the Alacón Member, Barranco del Mortero, northeastern Spain, to identify exposed limestone–dolomite geobodies and to quantify the degree of dolomitization across outcrop faces. Hyperspectral imaging is supplemented with photogrammetric outcrop modeling, field spectroscopy, and laboratory sample analysis for empirical validation and uncertainty analysis. Hyperspectral mapping shows that earlier fieldwork utilizing visual inspection of difficult to access outcrop surfaces had overestimated the amount of dolomite in the outcrop. Results indicate that hyperspectral imaging identified dolomite bodies more accurately and reliably than conventional field methods and facilitates the mapping of dolomite contribution in areas modified by dedolomitization, where dolomite content changes by more than ~20%.
Evidence of Mantle‐Based Deformation Across the Western United States

We investigate the role that upper mantle buoyancy anomalies play in determining the behavior of the crust. Recently, Castellanos et al. (2020; https://doi.org/10.1126/sciadv.abb0476) observed that the anisotropy of the Pacific Northwest (PNW) crust correlates with the upper‐mantle velocity structure and suggested that vertical loads in the upper mantle can displace the Moho and drive crustal flow on a regional scale. To provide further insight into this relation, we resolve the crustal anisotropy in regions where near‐surface mantle‐based deformation might have occurred or is presently occurring. Specifically, we focus on the crust around the Rocky Mountains and around California since high‐resolution tomographic images reveal the presence of mantle structures similar to the ones that are thought to be driving the crust in the PNW. Our results reveal crustal flow driven by mantle vertical loading in both regions and suggest that this mechanism may be key in maintaining crustal isostasy during an orogeny.
Deepwater Horizon crude oil reduces aerobic capacity of birds

Crude oil spills can have catastrophic effects on marine and inland ecosystems, yet it is difficult to accurately quantify the extent of ecological damage caused by oil spills. For instance, avian population damage assessments conducted after large oil spills (e.g., Deepwater Horizon spill) often focus on the number of visibly oiled birds. However, birds without visible oiling can exhibit hematological damage from oil ingestion. If such hematological responses limit oxygen deliver to tissues and impair aerobic performance, then energy-mediated effects from oil ingestion may ultimately affect endpoints of demographic significance (e.g., survival and reproduction). We investigated whether oil ingestion affects aerobic performance in birds by orally dosing zebra finches (Taeniopygia guttata) with 2 or 6 mL/kg of weathered MC252 crude oil for 28 days. After 14 and 28 days of dosing, we measured hematological indices (oxidative damage, packed cell volume [PCV], hemoglobin, reticulocytes), maximum metabolic rate (MMR), resting metabolic rate (RMR), and short-distance flight performance. Finches exposed to oil exhibited lower hemoglobin and PCV, higher reticulocyte counts, and greater oxidative damage. Shifts in these hematological indices appeared to alter organismal energetics, resulting in reduced MMR, RMR, and aerobic scope. Short-distance burst-flight was not negatively impacted by oil ingestion. Collectively, these results suggest oil ingestion impairs metabolic performance, which may negatively impact a bird’s ability to perform sustained energetically expensive activities (e.g., migration). Significance The 2010 Deepwater Horizon oil spill released an unprecedented volume of crude oil (MC252) into the northern Gulf of Mexico and contaminated 2100 km of shoreline habitat that serves as critical breeding grounds and migratory stop-over sites for birds. Here we describe the impact of oil ingestion on the aerobic capacity of zebra finches, a model songbird. Oil ingestion reduced maximum metabolic rate and aerobic scope, which may be caused in part by hematological damage. These data suggest oil ingestion limits the ability of birds to perform essential energetically demanding activities (e.g., migration, nest incubation), thus quantification of avian injury based on external oiling alone may underestimate the true impact of oil spills on avian populations.
THIS AWARENESS OF MULTIVITAMIN HAIR GROWTH USES AND BENEFIT OF SHAMPOO AND HAIR AMPULE IN SAUDI ADULTS

Despite of the lack evidence about using the multivitamins on the hair growth some information were collected from the mentioned references about the benefits of using multivitamin on the hair growth. The aim will be asses the attitude and practice of multivitamins for treatment of hair loss. These benefits were being mentioned in details and how these multivitamin work, some information about each vitamin. Some example of such vitamin like vitamin C and the vitamin B. the second information will be about the hair shampoo and the benefits from it, third title that will be considered as a new technique is the using of hair ampules. Some definition about hair and hair structure will be mentioned in the review. The theoretical part of the methodology will be describe by descriptive analytical methods and the practical part by the survey study and the data will be analyzes by statistical spss. The participant will be 200 hundred from both genders. The data will be collected and analyzed to evaluate the results. The result will be as we expected the majority of participant use the multivitamins for hair growth, the rest under the influence of other and the medical supervision or by pharmacist.