Miracle-dz/UniFAR-FTUs huggingface dataset:
Robust Regression Shrinkage and Consistent Variable Selection Via the LAD-Lasso

The least absolute deviation (LAD) regression is a useful method for robust regression, and the least absolute shrinkage and selection operator (lasso) is a popular choice for shrinkage estimation and variable selection. In this article we combine these two classical ideas together to produce LAD-lasso. Compared with the LAD regression, LAD-lasso can do parameter estimation and variable selection simultaneously. Compared with the traditional lasso, LAD-lasso is resistant to heavy-tailed errors or outliers in the response. Furthermore, with easily estimated tuning parameters, the LAD-lasso estimator enjoys the same asymptotic efficiency as the unpenalized LAD estimator obtained under the true model (i.e., the oracle property). Extensive simulation studies demonstrate satisfactory finite-sample performance of LAD-lasso, and a real example is analyzed for illustration purposes.
Substrate inhibition of degradation of 2,4‐dinitrophenol in activated sludge

Substrate inhibition of 2,4‐dinitrophenol (2,4‐DNP) degradation was investigated in activated sludge previously adapted to mineralize low concentrations of DNP. Typically, the time required for 95% degradation of 10 mg/L DNP under aerobic conditions and with mixed liquor suspended solids (MLSS) of 600 to 1 000 mg/L was less than 4 hours without any lag. However, when the initial DNP concentration increased to 75 mg/L, lags and even complete inhibition of DNP degradation were observed. The length of the lag was found to increase proportionally with decreasing MLSS. When dilute activated sludge was incubated for extended periods (192 hours), degradation of 75 mg/L DNP did eventually occur after lag periods of 37 to 144 hours, depending on MLSS concentration. Assays for most probable number of DNP‐degrading bacteria were made to ascertain the effect of high DNP concentrations on bacterial populations in the activated sludge.
Hidden languages in a digital world: the case of sign language archives

SIGN-HUB is a European project involving collaborators from seven countries funded within the Horizon 2020 Research and Innovation program. The scope of the project is both socio-cultural and linguistic, as its aim is to document and preserve the culture, the history, and the languages of European Deaf communities. After a brief description of the various components of the project, we focus on the documentation of the life stories of Deaf people and the creation of a digital sign language archive.
High Performance Polyesters Prepared from Bio‐Based 2,5‐Furandicarboxylic Acid

Aromatic polyesters were synthesized by the polymerization of bio-based 2,5-furandicarboxylic acid (FDCA) with petroleum-based 1,3and 1,4-diacetoxybenzene (DAB) from the viewpoint of the suppression of the petroleum consumption to develop the sustainable development society. Polyesters prepared at the molar ratio of 1,4-DAB in DAB (χ) of less than 60 mol% showed meltability under decomposition temperature. When the value of χ was 20-60 mol%, the polyesters exhibited optical anisotropicity in melt phase, suggesting the thermotropic liquid crystallinity. The phase transition temperature of these polyesters depended on the composition and it was tunable by the χ value. The film of the polyesters prepared at χ of 20 mol% possessed 1.2 GPa of the modulus, 26.0 MPa and 2.9% of the strength and elongation at break, respectively. Polyesters based on FDCA possessed good thermal stability and mechanical properties comparable to common aromatic polyesters. (Received 26 December, 2015 ; Accepted 12 January, 2016) # corresponding author : polykim@cc.okayama-u.ac. jp High Performance Polyesters Prepared from Bio-Based 2,5-Furandicarboxylic Acid Yusuke Kanetaka, Shinichi Yamazaki, and Kunio Kimura Graduate School of Environmental and Life Science, Okayama University, 3-1-1 Tsushima-naka Kita-ku, Okayama, 700-8530 Japan J. Fiber Sci. Technol. , 72(2), 54-60 (2016) doi 10.2115/fiberst.2016-0009 ©2016 The Society of Fiber Science and Technology, Japan Scheme 1 Preparation of PEss from dicarboxylic acids and aromatic diacetates. 54 Journal of Fiber Science and Technology (JFST), Vol.72, No. 2 (2016)
Stress Analysis of the Solar Cells in PV Modules

In this paper, an analytical solution for evaluation of the stress in the solar cells was developed. The stresses of the solar cells in PV module of 1580mm×808mm were calculated by the present solution and the wind pressures and the effects of the storage shear modulus of the EVA were considered. The results by the present solution were in good agreement with those from FE.
Tiny Object Detection in Remote Sensing Images: End-to-End Super-Resolution and Object Detection with Deep Learning

In this thesis, we study the problem of detecting small objects on lowresolution (LR) satellite imagery. Small-object detection is a challenging problem, especially from LR images. To tackle the challenge, we propose a method to generate super-resolution images from low-resolution images and simultaneously detect objects from the super-resolution images. A generative adversarial network (GAN)-based model called enhanced super-resolution GAN (ESRGAN) shows remarkable image enhancement performance, but reconstructed images miss high-frequency edge information. Therefore, object detection performance degrades for the small objects on recovered noisy and low-resolution remote sensing images. Inspired by the success of edge enhanced GAN (EEGAN) and ESRGAN, we apply a new edge-enhanced super-resolution GAN (EESRGAN) to improve the image quality of remote sensing images and used different detector networks in an end-to-end manner where detector loss is backpropagated into the EESRGAN to improve the detection performance. We propose an architecture with three components: ESRGAN, Edge Enhancement Network (EEN), and Detection network. We use residual-in-residual dense blocks (RRDB) for both the GAN and EEN, and for the detector network, we use the faster region-based convolutional network (FRCNN) (two-stage detector) and single-shot multi-box detector (SSD) (one stage detector). Extensive experiments on a public (car overhead with context) dataset and another self-assembled (oil and gas storage tank) satellite dataset show superior performance of our method compared to the standalone state-of-the-art object ii detectors. While working with the detection problem, we create a GUI tool to label, train, and detect objects from remote sensing images that cover a large area. This GUI makes it easier to create small image tiles from the large satellite images, training the state-of-the-art object detection models, running the detection, and finally obtaining the output geolocation for the detected objects.
Investment Strategy Analysis using Support Vector Machines

Investment strategy is the key point of investors who can make profits or otherwise. Investors always focus on their viewpoints subjectively, which may make them fall into the logic puzzle. The purpose of this paper is to integrate the technical analysis of financial markets with an emerging neural network model, Support Vector Machine (SVM), to solve the problem of investment strategy in Taiwan Futures Market (TAIFEX). The evaluation of investment strategy is the most essential task of investment analysis. However, the evaluation is usually time-consuming and laborious for investment experts. An effective and efficient decision support tool could significantly alleviate his/her burden and improve decision quality. The experimental results from a real-case study demonstrate its salient features of generalization and usability compared with original technical analysis.
Interaction of Metal–Dipeptide Complex with Ninhydrin in the Absence and Presence of Conventional CTAB Surfactant

The present work is aimed at studying the interaction between copper-glycyltyrosine [(Cu(II)-Gly-Tyr)]+ and ninhydrin in water and in micelles formed by cetyltrimethylammonium bromide (CTAB) using spectrophometric measurements at 80°C and pH 5.0. The order of reaction remains the same in the two systems, that is, first- and fractional-order kinetics with respect to [Cu(II)-Gly-Tyr]+ and [ninhydrin], respectively, in the excess of ninhydrin over [Cu(II)-Gly-Tyr]+. It was observed that the product formed is same in both the media. The reaction is catalyzed by CTAB, and the maximum rate enhancement is about three fold. Quantitative kinetic analysis of kψ–[CTAB] data was explained in terms of pseudo-phase of the micelles (assuming the association/incorporation of both the reactants at the micellar surface). GRAPHICAL ABSTRACT
Pengukuran usability pada learning management system perguruan tinggi menggunakan pedoman system usability scale

Kebijakan pemerintah di masa pandemi berdampak pada perubahan kegiatan pembelajaran di Universitas PGRI Madiun, di mana keseluruhan proses dilaksakan secara daring, salah satunya dengan memanfaatkan ELMA ( e-learning Universitas PGRI Madiun). Dalam praktiknya, pengguna mengeluh ketika menggunakan platform tersebut, salah satunya terdapat beberapa tombol yang malfungsi, beberapa menu dashboard membuat bingung pengguna, dan masih banyak permasalahan lainnya. Namun, keluhan tersebut belum bisa terakomodasi dengan baik, sehingga membuat pengguna merasa kurang nyaman dalam menggunakan platform tersebut, sehingga diperlukan evaluasi untuk mengungkap kondisi usability ELMA. Hal ini perlu dilakukan mengingat salah satu misi dari ELMA adalah mendukung pembelajaran online melalui fitur yang sesuai dengan kebutuhan pengguna. Adapaun evaluasi usablity yang bisa dilakukan salah satunya dengan menggunakan SUS ( System Usability Scale ). SUS merupakan salah satu instrumen evaluasi yang digunakan untuk melihat usability dari sebuah produk perangkat lunak. Berdasarkan hasil evaluasi usability terhadap 30 responden mahaiswa di berbagai lintas angkatan program studi sistem informasi, platform ELMA memiliki skor rata-rata sebesar 44 dengan rating rendah dan nilai huruf F. Hal ini menunjukkan bahwa ELMA masih memiliki tingkat kegunaan/ usability yang masih rendah. Sehingga perlu adanya perbaikan, diantaranya menghilangkan menu yang dirasa tidak diperlukan, memperbaiki tampilan dari forum diskusi, perbaikan plug-in fitur live conference , perbaikan terhadap tombol yang sering terjadi malfungsi, serta percepatan loading page pada paltform tersebut. Government policy during the pandemic has an impact on changes in learning activities at the University of PGRI Madiun, where the whole process is carried out online, one of them by utilizing ELMA (E-learning of Madiun PGRI University). In practice, users complain when using the platform, one of which is a number of useless buttons, some dashboard menus that confuse users, and many other problems. However, these complaints have not been well accommodated, so it makes users feel uncomfortable using the platform, so an evaluation is needed to understand the usability condition of ELMA. It is necessary to remember one of the ELMA's mission is to support online learning through the features according to user needs. The usablity evaluation can be done either by using SUS (System Usability Scale). SUS is one of the evaluation instrument used to look at the usability of a software product. Based on the results of usability evaluation of the 30 respondents from various forces student information system study program, ELMA platform has an average score of 44 with a "Awful" and letter grade F. This shows that ELMA still has a low level of usability. So there needs improvement, including removing the menu that was deemed unnecessary, improve the appearance of the discussion forum, repair plug-in features of a live conference, improvements to frequent malfunctions button and speed up page loading on the platform.
A Review On Natural And Artificial Methods Of Fruit Ripening, Benefits & Hazards

Fruits are the part of healthy and balanced diet which play an important role in nutrition, metabolic activities and heath of individuals by supplying necessary and essential growth regulating factors. Fruits are also advised by physician as indicated or contraindicated in different health condition or disorders. It is widely described as a part of Ahara varga under Phala varga in all Ayurvedic literatures where quality and indications of ripened and un ripened fruits and vegetables are described. There are various natural and artificial methods available for ripening, out of which some are safe. Commercial artificial ripening of fruits by ethylene are considered safe to eat. It allows the picking of many fruits raw and shipping them globally whereas artificial ripening by Calcium carbide is legally banned worldwide may cause many of health hazards. In this paper, a review study on fruits and their ripening methods is presented to develop understanding about different procedures, ripening agents, and their effects on health.
The Dependence of Bond Energy on Bond Length

It is suggested that in a series of similar bonds the bond energy is proportional to the reciprocal of the equilibrium interatomic distance (the bond length). This relation is supported by experimental values for some sequences, such as O_2, S_2, Se_2, Te_2. Application of the relation to other sequences is shown to support the values 170 kcal. /mole for the heat of dissociation of N_2 and 139 kcal. /mole for the heat of sublimation of carbon. The dependence of bond energy on other factors, including character of bond orbitals, energy of resonance of bonds among alternative positions, and repulsion of unshared electron pairs on the bonded atoms, is discussed.
DESAIN SERIOUS GAME KABEL LAN PADA APLIKASI AUGMENTED REALITY DENGAN GMC

ABSTRACTAugmented Reality (AR) is a technology that combines the real world with the virtual world in 2D and 3D, which is projected directly in real time. Of the problems that occur are the availability of network devices that will be used for the learning process is limited making the presentation of learning becomes less interactive, students are still unfamiliar to recognize forms of network topology and the number of errors when making LAN cables and LAN cabling practices make available devices become wasted uselessly. Learning with games is expected to be able to improve abilities and reduce mistakes when practicing. This research builds a game design that is embedded in the application of AR-based learners, using GMC (Gamification Model Canvas) to map learning needs with serious games. The results of this serious game are used as a virtual practice exercise in LAN cabling and connectivity based on the specified topology.Keyword: augmented reality, LAN, Gamification Model Canvas, serious game
Analysis of the Transverse Force in the Rayleigh and Mie Approximations for a Capture Beam TEM00 and TEM*01

espanolLas pinzas opticas utilizan un rayo laser altamente enfocado para capturar y manipular objetos micro y nanometricos. Se ha demostrado que son un dispositivo prometedor para la investigacion de vanguardia en varios campos, como la microbiologia y la biofisica. La prediccion de las fuerzas opticas presentes en este fenomeno es un problema actual en continua evolucion. Ademas, el reciente uso de haces de vortice con propiedades exoticas como el momento angular orbital, con ventajas como la manipulacion rotacional de las microparticulas capturadas y la reduccion del dano optico en las muestras biologicas (Opticution), hace que el problema sea aun mas complejo. Se presentan expresiones matematicas en los regimenes de Rayleigh y Mie para la fuerza de radiacion sobre una esfera dielectrica capturada por los haces de los modos TEM00 y TEM*01. A continuacion se comparan los resultados teoricos con las mediciones experimentales obtenidas con un dispositivo de medicion directa de la fuerza basado en la deteccion del momento de la luz. EnglishOptical tweezers use a highly-focused laser beam to capture and manipulate micro- and nanometric objects. These have been demonstrated to be a promising devices for state-of-the-art research in several fields, such as microbiology and biophysics. The prediction of the optical forces that are present in this phenomenon is a current problem in continuous evolution. Additionally, the recent use of vortex beams with exotic properties as the orbital angular momentum, with advantages as the rotational manipulation of the captured microparticles and reduction of the optical damage in biological samples (Opticution), makes the problem even more complex. Mathematical expressions in the Rayleigh and Mie regimes for the radiation force on a dielectric sphere captured by TEM00 and TEM*01 mode beams are presented. Theoretical results are then compared with experimental measurements obtained with a direct force measurement device based on light-momentum detection.
Derivation of bond-valence parameters for some cation-oxygen pairs on the basis of empirical relationships between ro and b

Abstract Relationships between the ro and b bond-valence parameters are investigated for ideal and distorted coordination polyhedra. For some ranges of the b values, this relationship can be approximated by linear functions, which are used to derive bond-valence parameters for some cation-oxygen pairs (ro, b [Å]): Cu2+—O (1.679, 0.36), Pb2+—O (1.963, 0.49), Hg2+—O (1.924, 0.38), Bi3+—O (1.990, 0.48), Sb3+—O (1.885, 0.53), Y3+—O (2.028, 0.35), La3+—O (2.086, 0.45), Nd3+—O (2.021, 0.46).
Copper mobility in CuFeS2, a layered trigonal phase obtained from LiCuFeS2

Abstract A theoretical study of the diffusion of transition metal atoms in the layered CuFeS2 structure obtained when lithium atoms are totally removed from LiCuFeS2 has been carried out using first-principles, density functional theory based methods. The low activation energy calculated for the displacement of copper atoms into the interlayer region is suggested to be at the origin of the experimentally observed metastable character of the layered trigonal CuFeS2 phase.
Voice Enable Personalized Web Search

The technology of voice browsing is rapidly evolving these days. It is because the use of cell phones is increasing at a very high rate, as compared to connected PCs. Speech interface integrated browser is a web browser that helps users by using an interactive voice user interface ,useful to those who have difficulties in seeing and reading a web content. Listening and speaking are the natural modes of communication and information gathering. As a result we are now heading towards a more voice based approach of browsing rather than operating on textual mode. A voice browser or speech browser will take and presents the information in the form of voice as well as text, using text to speech and speech to text conversion to render information. People want to get accurate and appropriate data at the top of search results in a user friendly manner. People also want to get a personal space over the internet when they are browsing on web, from this arises a need of personalization of the search history. Thus there is a need of a highly efficient and effective ranking algorithm that provides search results according to user preferences. This paper concentrates on this new technique, voice browsing, which unites speech recognition and speech synthesis with better personalized search that can be very fruitful in the coming years. In this paper we provide personalization by creating individual search history for each user on the browser and also focused on the search results to get customized according to the user demand.
Highly efficient dye-sensitized solar cells based on a ruthenium sensitizer bearing a hexylthiophene modified terpyridine ligand

Two ruthenium sensitizers bearing a 4-substituted terpyridine derivative ligand (TUS-39 and TUS-41) have been synthesized for dye-sensitized solar cells (DSCs). Solar cell performances of DSCs with these TUS sensitizers, together with that of the DSC with TUS-38 which is a structurally analogous ruthenium sensitizer bearing an n-hexylthiophene modified terpyridine derivative ligand, have been evaluated to investigate a favorable substituent for improving the photosensitization ability of ruthenium sensitizers. Among the three TUS sensitizers, TUS-38 showed the highest conversion efficiency of 10.8% under AM 1.5 (100 mW cm−2) irradiation. The conversion efficiency of the DSC with TUS-38 can be increased to 11.1% by decreasing the dye-adsorption temperature from 20 °C to 4 °C, presumably due to the improvement in the molecular arrangement of the sensitizers adsorbed at the TiO2 surface. This improved conversion efficiency can be further enhanced to 11.9% by employing an electrolyte solution containing 1-ethyl-3-methylimidazolium iodide instead of conventional 1,2-dimethyl-3-n-propylimidazolium iodide. This conversion efficiency is considerably higher than that of Black dye (10.9%), which is one of the most famous and highly efficient ruthenium sensitizers, under the same conditions. Upon optimization of the dye-adsorption conditions and the electrolyte composition, an extremely high conversion efficiency of 11.9% can be obtained for the DSC with TUS-38.
Time-resolved Spectroscopy of Excitons Bound at Shallow Neutral Donors in HVPE GaN

Time-resolved photoluminescence (TRPL) spectroscopy has been performed in the temperature range 2 K to 300 K on thick (300 μm – 1 mm) nominally undoped bulk HVPE grown GaN layers. The PL spectra are dominated by the free excitons (FEs) and the two neutral donor bound excitons (DBEs) at about 3.4712 eV and 3.4721 eV at 2 K, assigned to the residual O and Si donors, respectively. The zero-phonon decay curves for both FEs and DBEs are nonexponential, with a fast initial decay and a slower tail at longer times. The initial decay time of the FE is about 130 ps at 2 K in such samples, the corresponding initial decay time for the DBEs for O and Si is close to 300 ps. The different lines corresponding to the so called two-electron transitions for the DBE show a different behaviour, with a longer decay time than the corresponding principal DBE states. The LO phonon replicas of the DBEs also have a decay time in excess of 1 ns in lightly doped samples.
Formation and Characterization of Fully Dilutable Microemulsion with Fatty Acid Methyl Esters as Oil Phase

The objective of this study was to develop a green microemulsion with potential applications in the delivery system for oil-soluble solid active ingredients. A microemulsion was prepared using fatty acid methyl esters (FAMEs) as the oil phase, a mixture of alkyl polyglycoside (APG) and alkylpolyethoxy carboxylates (AEC) as the surfactant, and alkanol as a cosurfactant. The feasibility of formulating a fully water dilutable microemulsion with a green surfactant and nontoxic oil phase has been demonstrated. Pseudoternary phase diagrams were constructed by titration, and a large isotropic region was found. To expand the isotropic regions area, the effect of the mixing ratio of APG and AEC, the chain length of the cosurfactant and the oil on the isotropic area of the phase diagram were investigated systematically. As the water content increased, the continuous structural transition from water-in-oil, bicontinuous to oil-in-water microemulsion was followed by monitoring conductivity. Percolation phenomena were.