Miracle-dz/UniFAR-FTUs huggingface dataset:
Customer satisfaction with value chain credits of pangasius industry in Vietnam

Article history: Received: November 18, 2020 Received in revised format: December 28 2020 Accepted: January 18, 2021 Available online: January 18, 2021 This study assesses customer satisfaction with value chain credits of the pangasius industry in Vietnam using the Servqual model and survey data in 2018. Based on it, some study recommendations related to increasing customer satisfaction are proposed while implementing credit products under the current Vietnamese pangasius value chain. This article aims to assess the satisfaction of customers who are applying for a loan under the value chain credit model for the pangasius industry. © 2021 by the authors; licensee Growing Science, Canada
Study on the effect of Fe and N co-doped supported TiO2/GF photocatalytic oxidation of nitrobenzene wastewater

This research aims to treat the refractory nitrobenzene wastewater in the industrial water treatment industry with modified supported TiO2, and to study its influence on the treatment effect.Experiments have found that by preparing Fe and N co-doped TiO2/GF supported catalysts, it has better catalytic performance. Under the same conditions, Fe and N co-doped TiO2/GF can degrade nitrobenzene wastewater better than single Doped with Fe-TiO2/GF and N-TiO2/GF, the removal rates of nitrobenzene and COD are as high as 97.2% and 92.5%, respectively.The Fe and N co-doped TiO2/GF catalyst overcomes the agglomeration of traditional powdered TiO2 in solution, and has a good removal effect on nitrobenzene wastewater.
Regulatory Functions of MicroRNAs in Cancer Pathogenesis

MicroRNAs (miRNAs) are a large family of evolutionary conserved small non-coding RNA molecules that firstly discovered in 1993. They regulate gene expression of about 50% of protein-coding genes at the post-transcriptional level. MiRNAs can target numerous messenger RNAs and subsequent misexpression of them can affect many different signaling pathways. They are playing a pivotal role in cancer development by regulation of the genes expression which involved in the proliferation, survival, differentiation, apoptosis or metastasis of the cancer cells. Several treatment approaches such as inhibition of oncomiRs and restoration of tumor suppressor miRNAs have been established in certain types of cancers and some other miRNA-based strategies are in development for cancer prevention and treatment. Nowadays, cancer is the most important target of miRNA therapeutics and the specific mechanisms by which miRNA mediates cancer pathways needs more research and study
Gd-EOB-DTPA: When is transitional period between distribution phase and hepatobiliary phase?

Poster: "ECR 2010 / C-0064 / Gd-EOB-DTPA: When is transitional period between distribution phase and hepatobiliary phase? " by: "Y. Nakamura1, K. Awai2, T. Ohmoto1, N. Takeuchi1, N. Toyota1, T. Kajima1, E. Nishimaru2; 1Kure/JP, 2Hiroshima/JP"
A low profile wideband probe-fed dielectric resonator antenna

Many approaches have been presented to broaden the impedance bandwidths of low profile dielectric resonator antennas (DRAs). However, few of them can achieve a balanced behaviour in terms of bandwidth, gain, radiation patterns, antenna size, etc. In this paper, a low profile wideband probe-fed DRA is proposed. By centrally placing a probe-fed strip DR in a 2×2 parasitic DR lattice, balanced antenna performance can be achieved. A DRA prototype was fabricated and tested for demonstration. Measured results show that the antenna can achieve an impedance bandwidth of 24%, a peak gain of 7.92 dBi with a compact DR size of 0.47×0.47×0. 07λ0 (λ0 is the wavelength of the center frequency). Besides, symmetrical and consistent radiation patterns can be maintained within the band.
A 6.78-MHz Single-Stage Wireless Power Receiver With Ultrafast Transient Response Using Hysteretic Control and Multilevel Current-Wave Modulation

This article presents a 6.78-MHz single-stage regulating rectifier with hysteretic control and current-wave modulation (CWM) techniques for wireless power receiver applications. The proposed receiver realizes ac–dc rectification and dc–dc regulation in a single-power stage, thus improving the power efficiency and reducing the system volume. The hysteretic control together with the proposed CWM technique achieves a much accelerated load-transient response for the rectifier compared to the recently developed multicycle pulsewidth modulation techniques. The system design complexity is significantly reduced. The proposed multilevel CWM technique achieves more evenly distributed power conversions and less output voltage ripples. The proposed receiver fabricated in a 0.18-μm CMOS process using 3.3-V devices can regulate the output voltage to 3.3 V and deliver 1.98-W maximum power with a measured peak efficiency of 92.14%. An instant load-transient response is observed for a load current step between 12 and 600 mA.
Image Inpainting Using Double Discriminator Generative Adversarial Networks

The image inpainting algorithms based on GAN have problems such as color inconsistencies of the inpainted region with the surrounding part and the mode collapse during the training. This paper proposes an inpainting algorithm based on double discriminator generative adversarial networks (GANs). This algorithm introduces the loss function of WGAN-GP into a global discriminator and local discriminator independently. It combines the Mean-Square Error (MSE) and feature reconstruction loss function to train the inpainting model and repair the missing area. The algorithm uses more dilated convolutions instead of standard convolutions to obtain a larger receptive field and the skip connection to enhance the structural prediction ability of the generator. The experiment results on the labeled faces in the wild dataset show that our algorithm improves the quality of image inpainting and the stability of the training process.
Partitioning Stateful Data Stream Applications in Dynamic Edge Cloud Environments

Computation partitioning is an important technique to improve the application performance by selectively offloading some computations from the mobile devices to the nearby edge cloud. In a dynamic environment in which the network bandwidth to the edge cloud may change frequently, the partitioning of the computation needs to be updated accordingly. The frequent updating of partitioning leads to high state migration cost between the mobile side and edge cloud. However, existing works don’t take the state migration overhead into consideration. Consequently, the partitioning decisions may cause significant network congestion and increase overall completion time tremendously. In this article, with considering the state migration overhead, we propose a set of novel algorithms to update the partitioning based on the changing network bandwidth. To the best of our knowledge, this is the first work on computation partitioning for stateful data stream applications in dynamic environments. The algorithms aim to alleviate the network congestion and minimize the make-span through selectively migrating state in dynamic edge cloud environments. Extensive simulations show our solution not only could selectively migrate state but also outperforms other classical benchmark algorithms in terms of make-span. The proposed model and algorithms will enrich the scheduling theory for stateful tasks, which has not been explored before.
Consensus and coordination on groups SO(3) and S 3 over constant and state-dependent communication graphs

We address several problems of coordination and consensus on and that can be formulated as minimization problems on these Lie groups. Then, gradient descent methods for minimization of the corresponding functions provide distributed algorithms for coordination and consensus in a multi-agent system. We point out main differences in convergence of algorithms on the two groups. We discuss advantages and effects of representing 3D rotations by quaternions and applications to the coordinated motion in space. In some situations (and depending on the concrete problem and goals) it is advantageous to run algorithms on and map trajectories onto via the double cover map , instead of working directly on .
Mixture Density Networks-Based Knock Simulator

The engine knock simulator is useful for the evaluation of the feedback knock controllers and also the calibration of the feedforward control input without experiments in spark-ignition engines. This article proposes a mixture density network (MDN)-based statistical simulator of the engine knock for spark-ignition engines. The simulator can output the simulated knock intensity by the operating condition, which has a consistent probability distribution with the real engine. The statistical analysis is conducted based on the experimental data. According to the analysis results, several important properties about the knock intensity have been revealed. The logarithm of knock intensity is independent and identically distributed under an identical operating condition, whose probability distribution can be approximated by Gaussian mixture model (GMM). The parameter vector of the GMM is a function of the engine’s operation condition. Based on these statistical properties of engine knock, we formulate the problem of establishing a statistical simulator, which includes two subproblems. The first one is how to approximate the function from the operating condition to the parameters of the GMM. The second one is how to output the simulated random data of logarithm of knock intensity that obeys a given distribution. The MDN and the accept–reject algorithm are applied to solve the two subproblem, respectively. Finally, we conducted experimental data-based validations to verify the proposed method.
A Unidirectional, Printed Antenna With High Interport Isolation Over Wider Bandwidth for 2.4 GHz Full Duplex Applications

This work presents a dual-polarized, proximity-fed bistatic antenna system with comparatively wideband self-interference cancellation (SIC) performance for 2.4 GHz single-channel full-duplex (SCFD) or in-band full-duplex (IBFD) wireless applications. The presented antenna system is comprised of two closely spaced (spatial separation of $\lambda _{\mathrm {o}}$ /4) proximity-fed patches with dual-polarized characteristics for transmit (Tx) and receive (Rx) modes. The proximity feeding offers comparatively wider impedance bandwidths (BWs) for both Tx and Rx ports. The Tx mode is excited through a single-port proximity-fed square patch, whereas the Rx mode operation is realized through a differentially driven proximity-fed dual-port patch. The compact structure for the presented antenna is realized through the vias interconnection of Rx ports of patch and differential feeding circuit. The implemented antenna prototype characterizes better than 87 dB peak interport decoupling, and the experimental results demonstrate higher than 80 dB interport isolation over the entire 10 dB return-loss impedance BW of 120 MHz for the presented antenna. Furthermore, the recorded results provide better than 6 dBi gains with higher than 75% peak radiation efficiencies for both Tx and Rx modes. In addition, the measured cross-polarization levels are more than 30 and 42 dB below the respective Tx and Rx co-polarization levels. The contributions of this work are the demonstration of a compact, dual-port antenna with comparatively wider impedance and isolation BWs along with low cross-polarization characteristics for both modes without compromising the radiation performance and electrical size of the proximity-fed printed patch antenna.
Submarine Geomorphology of the Southwestern Sardinian Continental Shelf (Mediterranean Sea): Insights into the Last Glacial Maximum Sea-Level Changes and Related Environments

During the lowstand sea-level phase of the Last Glacial Maximum (LGM), a large part of the current Mediterranean continental shelf emerged. Erosional and depositional processes shaped the coastal strips, while inland areas were affected by aeolian and fluvial processes. Evidence of both the lowstand phase and the subsequent phases of eustatic sea level rise can be observed on the continental shelf of Sardinia (Italy), including submerged palaeo-shorelines and landforms, and indicators of relict coastal palaeo-environments. This paper shows the results of a high-resolution survey on the continental shelf off San Pietro Island (southwestern Sardinia). Multisensor and multiscale data—obtained by means of seismic sparker, sub-bottom profiler chirp, multibeam, side scan sonar, diving, and uncrewed aerial vehicles—made it possible to reconstruct the morphological features shaped during the LGM at depths between 125 and 135 m. In particular, tectonic controlled palaeo-cliffs affected by landslides, the mouth of a deep palaeo-valley fossilized by marine sediments and a palaeo-lagoon containing a peri-littoral thanatocenosis (18,983 ± 268 cal BP) were detected. The Younger Dryas palaeo-shorelines were reconstructed, highlighted by a very well preserved beachrock. The coastal paleo-landscape with lagoon-barrier systems and retro-littoral dunes frequented by the Mesolithic populations was reconstructed.
Emerging Line of Research Approach in Precision Agriculture: An Insight Study

The present state of agriculture and its demand is very much different than what it used to be two decades back. Hence, Precision Agriculture (PA) is more in demand to address this challenging demand. With consistent pressure to develop multiple products over the same agricultural land, farmers find PA’s adoption the best rescue-based solution with restricted resources. PA accelerates the yield and potentially assists in catering up the demand of scarcity of demands of food. With the increasing adoption of PA-based technologies over farming, there are best possibilities to explore efficient farming practices and better decision-making facilitated by real-time data availability. There isan evolution of various novel technologies to boost agricultural performance, i.e. variable rate technology, Geomapping, remote sensing, automated steering system, and satellite positioning system. Apart from this, it is also observed that Internet-of-Things (IoT) and Wireless Sensor Network (WSN) have been slowly penetrating this area to acceleratePA's technological advancement. It is noticed that the adoption of sensing technology is a common factor in almost all the techniques used in PA. However, there is no clear idea about the most dominant approach in this regard. Therefore, this paper discusses existing approaches concerning standard conventional PA and sensing-based PA using WSN. The study contributes towards some impressive learning outcomes to state that WSN and IoT are extensive to boost PA.
Missed Opportunity for Diversity in Engineering: Black Women and Undergraduate Engineering Degree Attainment

Efforts dedicated towards broadening participation for Black and other underrepresented groups in engineering at post-secondary institutions has intensified in recent decades. However, Black women have not yet reached parity in undergraduate engineering degree attainment. To elucidate this trend, data from the U.S. Department of Education was analyzed to investigate postsecondary completion for Black women in engineering. Results indicate that the percentage of degrees awarded to Black women has slightly decreased during the last five years when compared to women of all races. However, the percentage of Black women obtaining engineering degrees has increased when compared to the general Black engineering population, with a larger percentage of Black women obtaining engineering degrees compared to their male counterparts than any other ethnicity. Thus, the purpose of this paper is to provide recommendations for research avenues that may strengthen knowledge around the enrollment and retention of Black women in engineering at post-secondary institutions.
Compact Filtering Balun With Wide Stopband and Low Radiation Loss Using Hybrid Microstrip and Substrate-Integrated Defected Ground Structure

In this letter, a novel hybrid microstrip and substrate-integrated defected ground structure (SIDGS) are proposed for filtering balun design. Coupled microstrip and SIDGS resonators can not only achieve 180° phase imbalance with filtering response but also realize wide stopband and wideband low radiation loss. In addition, the feature of stacked substrate packaging could reduce the size of the circuit and be flexible for integration. To verify this mechanism, a filtering balun operating at 3.08 GHz with 3-dB fractional bandwidth (FBW) of 45% is proposed based on hybrid microstrip and SIDGS, which exhibits the in-band amplitude- and phase-imbalances of ±0.5 dB and ±0.4°, respectively. The stopband extends to 18 GHz with the rejection level of 20 dB, whereas the measured total loss (i.e., including radiation, metal, and substrate loss) is less than 15% up to 15.3 GHz.
Sema-IIoVT: Emergent Semantic-Based Trustworthy Information-Centric Fog System and Testbed for Intelligent Internet of Vehicles

In large-scale emergency scenarios, massive content for searching, asking for help, and rescue will be generated and transmitted in intelligent Internet of vehicular things (IIoVT). However, IP-networks-based emergency systems make rescue decisions on remote emergency centers, leading to inefficient content dissemination and a high-latency response. Moreover, a few previous works address trust issues in the emergency systems, resulting in fake content and malicious emergency services. To address abovementioned challenges, we propose an emergent semantic-based information-centric fog system, which realizes trustworthy and intelligent emergency analysis and management. First, we design an efficient emergency content dissemination network for aggregating and analyzing emergency information. Besides, we propose a semantic-based trustworthy routing scheme that filters fake content from malicious entities. Moreover, we implement a real testbed and a simulator to evaluate the benefit and performance of the proposed system. The results show that the proposed system achieves a short average semantic analyzing time and a low failure rate of emergency services.
Fabry–Perot Beam Scanning Antenna for Remote Vital Sign Detection at 60 GHz

A beam scanning Fabry–Perot leaky-wave antenna (LWA) is designed at 60 GHz-band for single tone continuous-wave Doppler radar (DR)-based remote vital sign monitoring (RVSM) in a dynamic environment. A brief analysis is presented on antenna requirements for the DR in a typical dynamic scenario where a continuous RVSM is desired of a patient during sleep. The antenna is designed based on the drawn requirements with sufficiently high gain (>18 dBi) and wide beam scanning (12°) over the operating frequency band (62–65 GHz) for accurate RVSM up to 3 m distance. The patient under continuous health monitoring has a flexibility to change his/her position within 1 m angular distance from the fixed sensor position. Detailed RVSM measurements have been carried out with the proposed antenna system at 2 m and 3 m distances from the subject to verify the designed antenna’s suitability for dynamic RVSM application. It has been shown that both the breathing rate (BR) and heartbeat rate (HR) can be successfully detected within 20° of the angular range by tuning the operating frequency from 62 to 65 GHz.
Volatiles, polysaccharides and total polyphenols in Chinese rose tea infusions and their antioxidant activities

Rose tea is a kind of popular beverage in many Asian countries. In this study, the contents of volatiles, polysaccharides and total polyphenols in three species of Chinese rose tea infusions [Kuishui Rose (KSR), Pinying Rose (PYR) and Jinbian Rose (JBR)] were determined, respectively. Meantime, the volatiles from those three tea infusions were analyzed by GC-MS, and their antioxidant activities were tested by 1,1-diphenyl-2-picrylhydrazyl radical scavenging assay. As results, 17, 15, and 20 components were identified in their volatiles, respectively. The contents of volatiles, polysaccharides and total polyphenols, and the antioxidant activity of PYR tea infusion were higher than those of other two tea infusions. To elucidate the contributions of those main constituents in rose tea for its activity, correlation coefficients between them were analyzed, displaying that the polysaccharides and polyphenols are the main antioxidants in rose tea infusion, whose correlation coefficients were greater than 0.9. Practical applications As a kind of beverage with health care function, the activities and active ingredients of rose tea have mainly focused on polyphenols and their antioxidant so far. The current studies on the contents of volatiles, polysaccharides and total polyphenols and the antioxidant activities of rose tea infusions from three species in China could provide an useful comparison of the difference of antioxidant activities and constituents in those three rose teas and a basic data for quality control of rose tea.
Changes in chlorophyll spectral characteristics in rye seedlings grown under heavy metal stress

Heavy metals produce many severe toxic effects while taken up by plants in higher concentrations. Kupper et al. (1996, 1998) demonstrated that the substitution of the central Mg ion in chlorophyll by heavy metals in vivo is one of the most important damages observed in the photosynthetic apparatus of stressed plants. Here we present the results of the effects of Cd, Cu, Hg, Ni, Pb and Zn on spectral characteristics of chlorophyll in rye seedlings grown under heavy metals stress. Heavy metals were applied to the nutrient medium at 500 mM concentration after 4 days of growth at light intensity of 150 mmol m-2s-1, 16/8 h day/night regime. After next 7 days of growth at the above conditions second leaves were subjected to subsequent analyses. Absorption, fluorescence induction and emission spectra were taken from the leaves, isolated chloroplasts and chlorophyll extracted from metal-treated seedlings. We also performed the measurements of chlorophyll a fluorescence induction kinetics by the modulated fluorescence technique. Chlorophyll spectral changes, disturbances in energy transfer in photosynthetic antennae, as well as changes in structural properties of the major light-harvesting complex (LHCII) were observed in heavy-metal treated plants. Kupper H, Kupper F, Spiller M, 1996. J.Exp. Bot. 47: 259-266. Kupper H, Kupper F, Spiller M, 1998. Photosynth. Res. 58: 123-133.
Electromagnetic and mechanical design of module dual stator brushless doubly‐fed generator for offshore wind turbine

In order to meet the higher requirements (i.e. large scale, high reliability and direct drive) of generators used for offshore wind turbine, a novel direct drive module dual stator brushless doubly-fed generator (DSBDFG) with cage-barrier rotor having many outstanding merits is proposed in this paper. The fundamental structure, operation principle and power ﬂow are presented. The electromagnetic design methods of the proposed generator including power distribution of inner and outer machines, the relationship of pole number, slot number and module number, and winding design are thoroughly investigated. In order to solve the problems in structure brought by module design and reduce the weight as much as possible, a mechanical construction applied for module DSBDFG is proposed. Finally, the correctness of the proposed electromagnetic design method and the stability of the proposed mechanical construction are veriﬁed based on ﬁnite element analysis respectively.