Miracle-dz/UniFAR-FTUs huggingface dataset:
CASEarth Poles: Big Data for the Three Poles

Unprecedented changes in the climate and environment have been observed in the three poles, including the North Pole, the South Pole, and the Third Pole–Tibetan Plateau. Although considerable data have been collected and several observation networks have been built in these polar regions, the three poles are relatively data-scarce regions due to inaccessible data acquisition, high-cost labor, and difficult living environments. To address the obstacles to better understanding the unprecedented changes in the three poles and their effects on the global environment and humans, there is a pressing need for better data acquisition, curation, integration, service, and application to support fundamental scientific research and sustainable development for the three poles. CASEarth Poles, a project within the framework of the “CAS Big Earth Data Science Engineering” program of the Chinese Academy of Sciences, aims to construct a big data platform for the three poles. CASEarth Poles will be devoted to 1) breaking the bottleneck of polar data curation, integration, and sharing; 2) developing high-resolution remote sensing products over the three poles; 3) generating atmospheric reanalysis datasets for the polar regions; 4) exploring the synchronization, asynchronization, and teleconnection of the environmental changes in the three poles; 5) investigating the climate, water cycle, and ecosystem dynamics and the interactions among the multispheres in the polar regions and their global effects; and 6) supporting decision-making with regard to sea ice forecasting, infrastructure, and sustainable development in polar regions. CASEarth Poles will collaborate with international efforts to enable better data and information services for the three poles in the big data era.
Nested Formation Approach for Networked Microgrid Self-Healing in Islanded Mode

This paper proposes a novel nested restoration decision system (NRDS), which aims to minimize unused capacity of distributed generation (DG) for service restoration due to contingency during islanding stage. The proposed algorithm is based on the concept of nested microgrid formation, where the network control schemes are framed on a layered structure. The power-sharing strategy between neighboring microgrids in the network is from outer to inner microgrid loads, where the outermost microgrid exchanges power with utility grid only. The first stage refers to pre-fault scenario, which finds a solution for networked microgrid distributed generation as the initial setting. Furthermore, the second stage calculates additional redistribution requirements based on respective microgrid's deficiency using a solution index matrix. The proposed control has been evaluated on a networked microgrid system, while performing islanding.
Economic Evaluation of Scotch Thistle Suppression

Economic evaluation of Scotch thistle (Onopordium acanthium L.) infestation of grazing land in northeastern California revealed potential annual losses to ranchers approximated $10.20/A for wet meadows, $6.70/A for wheatgrass (Agropyron spp.) stands, and $3.40/A on downy brome (Bromus tectorum L.) rangelands. Annual application of 0.06 lb/A of 4-amino-3,5,6-trichloropicolinic acid (picloram) provided the most economical ($3.57/A) means of suppressing Scotch thistle. Annual application of 0.06 lb/A also introduced less picloram into the environment than less frequent application of higher rates. Application of picloram to suppress Scotch thistle limits management options and reduces potential land values.
Price Transmission and Factors Influencing the Price of Onions in Tanzania

This article analyzes the transmission of prices between marketing agents and the factors affecting onion prices at the consumer level. The Error Correction Model-Engle Granger (ECM-EG) was used to test the price transmission by including the impact of the rise and fall of producer, wholesale and retail prices in past periods. The Error Correction Model (ECM) was applied to the factors affecting onion prices. The test results showed that price transmission was asymmetrical in the short and long-run. With regard to factors, the results show that consumer price in the short-run was influenced by wholesale prices, producer prices and the price of fuel while in the long-run it was influenced by wholesale prices, producer price, price of fuel and consumer prices in the previous period (t-1). These results suggest the existence of a short-term adjustment cost and a long-term market power which distorts price transmission.
Performance Analysis of Double-Sided Permanent Magnet Linear Synchronous Motor With Quasi-Sinusoidal Ring Windings

With the development of high performance processing system, high precision Permanent Magnet Linear Synchronous Motor (PMLSM) has been the focus of research. This paper provides a novel double-sided PMLSM with quasi- sinusoidal ring windings, to reduce the thrust ripple while keep the average thrust at a suitable value. Firstly, the distributions of the magnetic fields in this motor are analyzed, the low-order harmonics of armature magnetic field induced by the quasi- sinusoidal ring windings are studied, by equivalent magnetizing current (EMC) method. The winding factor and the Back Electromagnetic Force of this PMLSM are analyzed theoretically and verified by finite-element (FEM) method, based on the specific structure of quasi-sinusoidal ring windings. Furthermore, the electromagnetic thrust analysis is provided, which is aimed at the influence of the novel winding structure. Finally, a prototype of the double-sided PMLSM with quasi-sinusoidal ring windings is manufactured to verify the effectiveness of the topology proposed in this research. The presented results show that this novel motor can provide a great thrust property, it has a potential in high performance industry applications.
An Analytical Method for High-Frequency Electromagnetic Scattering of Arbitrary Undulating Rough Surfaces

This article presents a new approach to analytically compute high-frequency (HF) electromagnetic (EM) scattering from an arbitrary undulating rough surface according to the statistical characteristics of its geometric fluctuation. The integral expression of the scattering coefficient is derived from Kirchhoff approximation (KA) and extended to arbitrary spectra. Two methods are presented to calculate the integral: 1) the discrete Fourier transforming method based on the autocorrelation function (ACF) (KAC) and 2) the convolution method based on the power spectrum density function (KAW). For some analytically expressed spectra, the scattering coefficients can be calculated directly by the KAW and KAC methods according to its power spectrum density (PSD). The analytical expressions of classical KA for Gaussian and exponential spectrum are used to validate the proposed methods. For the case of unknown undulation height spectra of rough surfaces, the ACF is statistically calculated first, and then the KAC and KAW methods are used to calculate the average scattering coefficients numerically. Moreover, the numerical results show that the KAW method takes up more memory to retain enough energy of the ACF for accurate scattering coefficients. The two new methods are effective in the range of $\theta _{i} $ from 0° to 45° and have broad application prospects for real scenarios.
SYNTHESIS, CHARACTERIZATION, AND OPTIMIZATION OF BIODEGRADABLE PCL-PEG-PCL TRIBLOCK COPOLIMERIC MICELLES AS NANOCARRIERS FOR HYDROPHOBIC DRUG SOLUBILITY ENHANCER

Objective: This study aims to synthesize, characterize, and optimize biodegradable polycaprolactone-polyethylene glycol-polycaprolactone (PCL-PEG-PCL) triblock copolimeric micelles as a nanocarrier for hydrophobic drug solubility enhancer of ketoprofen (K). Methods: PCL-PEG-PCL (PCEC) triblock copolymers was obtained from the synthesis of ɛ-caprolactone (ɛ-CL) and PEG by ring opening polymerization (ROP) method at different PCL: PEG ratio (2-5:1). The K-loaded PCEC triblock copolymeric micelles was obtained by solvent evaporation method. Optimization of PCEC triblock copolymers and analysis of the effect of PCL: PEG ratio factors on the responses toward particle size (PS), polydispersity index (PdI), and entrapment efficiency (EE), were carried out through the design of experiments (DoE) approach of the 22 full factorial design method using the Design-Expert software to obtain the optimum formula. Results: The higher the PCL: PEG ratio, the ZP value tends to be smaller while the PS, PdI, EE, and drug solubility may be increased, but the addition of hydrophobic blocks to some extent does not affect the EE and drug solubility. The optimum K-loaded PCEC triblock copolymeric micelles with a PCL: PEG 2.0:1 ratio has a zeta potential (ZP) of-24.07±0.35 mV, the particle size of 235.70±6.03 nm, polydispersity index of 0.30±0.06, entrapment efficiency of 87.08±0.06%, and the solubility of the K increases by 10.60 times. Conclusion: The 22full factorial design has been proven to be the suitable optimization method to determine the optimum condition that yields to the optimum results of the PS, PdI, and EE of the of the K-loaded PCEC triblock copolymer micelles.
Development of “H‐Shaped” monopole antenna for IEEE 802.11a and HIPERLAN 2 applications in the laptop computer

A very low profile and ultra‐thin “H‐Shaped” antenna for IEEE 802.11a and HIPERLAN 2 wireless applications in the laptop computer is developed. The antenna is designed using only a pure copper strip of size 17.5(L) × 4(W) mm2 with thickness of only 0.035 mm. The novelty of the proposed antenna is that the antenna is designed with only one rectangular radiating strip without using any additional reactive components, vias or three dimensional structure. Furthermore, the proposed antenna does not require any additional ground plane for installing in laptops. The proposed antenna is comprised of one radiating strip, one rectangular stub, and two resonating slots, namely, “X” and “Y” of length 7.5 mm and 7 mm, respectively. The proposed structure resonates at around 5.5 GHz can cover the (5.15‐5.35/5.725‐5.825) GHz IEEE 802.11a and (5.15‐5.35/5.470‐5.725/5.725‐5.925) GHz HIPERLAN 2 bands. The fabricated prototype antenna has measured impedance bandwidth (VSWR<2) of 15% (5.10‐5.92 GHz) across the operating bands. The measured radiation patterns are nearly omnidirectional along with stable gain of 5 dBi. Moreover, the proposed antenna exhibits excellent radiation efficiency of around 90% across the operating bands. The simulated and measured results of antenna are found to be in good agreement. The very low profile and ultra‐thin structure make it an excellent candidate for wireless operations in the ultra‐thin laptop computers.
Use of Educational Films in Environmental Education as a Digital Learning Object

The purpose of this study is to investigate the effects of educational movies that are used in teaching the chapter of Mystery of Earth Crust / Earth and Universe on the environment-related knowledge levels and attitudes of students. Another purpose of the study is to find out about the views of students in the experiment. As a result of the study, the knowledge test mean scores of the students after the implementation significantly differed between the groups in favor of the experiment group. Another finding in this study, no significant difference was found between the groups in terms of their mean post-test attitude scores before the implementation. For the first question, the students stated that the Mystery of Earth Crust / Earth and Universe chapter was distinct from other chapters because of some differences. For the second question, the students stated that they learned the definition, reasons, effects and types of environmental pollution, gained awareness and responsibility about the environment, learned about behaviors towards preventing environmental pollution and developed an attitude towards environmental pollution. Additionally, with the third question the students’ emphasized educational movies had significant benefits for both individual outcomes and the instruction process
Flexure Strength and Fracture Propagation in Zirconia Ceramic Composites with Exfoliated Graphene Nanoplatelets

In this work, the flexure strength and fracture propagation mechanisms in yttria tetragonal zirconia (3YTZP) dense composites with 1 and 5 vol.% exfoliated graphene nanoplatelets (e-GNP) were assessed. The composite powders were processed by dry planetary ball milling to exfoliate the as-received GNP, and then densified by spark plasma sintering (SPS). The hardness and Young’s modulus were measured by Vickers indentation and the impulse-echo technique, respectively. Flexural strength and modulus were estimated by four-point bending tests. Finally, cracks originated by Vickers indentations were analyzed by scanning electron microscopy (SEM). The Raman spectra and SEM observations showed a reduction in the number of graphene layers and most remarkably in the lateral size of the e-GNP, achieving a very homogeneous distribution in the ceramic matrix. The hardness, elastic modulus, and flexural strength of the 3YTZP matrix did not vary significantly with the addition of 1 vol.% e-GNP, but they decreased when the content increased to 5 vol.%. The addition of e-GNP to 3YTZP increased its reliability under bending, and the small lateral size of the e-GNP produced isotropic fracture propagation. However, the energy dissipation mechanisms conventionally attributed to the larger GNP such as fracture deflection or blocking were limited.
Sensitivity Analysis of the Impact of the Sub- Hourly Stochastic Unit Commitment on Power System Dynamics

Subhourly modeling of power systems and the use of the stochastic optimization are two relevant solutions proposed in the literature to address the integration of stochastic renewable energy sources. With this aim, this paper deals with the effect of different formulations of the subhourly stochastic unit commitment (SUC) problem on power system dynamics. Different SUC models are presented and embedded into time domain simulations (TDS) through a cosimulation platform. The objective of the paper is to study the combined impact of different frequency control/machine parameters and different SUC formulations on the long-term dynamic behaviour of power systems. The analysis is based on extensive Monte Carlo TDS (MC-TDS) and a variety of scenarios based on the New England 39-bus system.
Sharing Ecological Knowledge: Opportunities and Barriers to Uptake

Conserving tropical ecosystems is one of the foremost challenges of the 21st century. Lately, conservation efforts have focused on advancing conservation through dialogue and interaction with and among diverse stakeholders. Knowledge sharing, and specifically the transfer of scientific knowledge, can raise ecological awareness among stakeholders and is necessary to facilitate dialogue, yet the communication of tropical scientific research to local stakeholders is rarely effectively implemented. Such a communication gap potentially undermines the conservation and management of natural resources. The papers in this special section highlight the difficulties and benefits of sharing ecological knowledge, as well as the underlying reasons for why a research–implementation gap has arisen.
Professional agency and its features in supporting teachers’ learning during an in-service education programme

ABSTRACT Research has shown that professional agency is pivotal for understanding teachers’ professional learning in different contexts. However, we lack an elaborated understanding of teachers’ professional agency in the context of in-service teacher education aimed at supporting teachers’ professional learning. To contribute to this discussion, this study investigated primary school teachers’ professional agency during in-service education and the features related to the emergence of their agency. The findings show that teachers enacted professional agency regarding their professional identity and work in various ways, suggesting that the roles of different social scaffoldings for professional agency varied. The teachers viewed pedagogical hands-on practice with colleagues’ support as especially meaningful. However, transferring learning to classroom practices depends on the teacher’s professional agency in identity renegotiation. Therefore, this study highlights the need for continuous, practice-based scaffolding that supports teachers’ agency – and accordingly professional learning – if we wish to enhance the efficiency of in-service education.
Genetic Transformation of Cauliflower (Brassica oleracea var.botrytis) using Agrobacterium Tumefaciens as a Vector for Improved Stress Resistance

The modern genetic engineering is the main solution to increase the crop production through crop protection and its development or sustainability. Transformation in cauliflower(Brassica oleracea var.botrytis) is require a vast amount of explants through micropropagation to improve a stress resistance. A procedure for detection of the presence of insert DNA in recombinant plasmids in individual Agrobacterium tumefaciens strain was refined and the gene cassette was optimize by using PCR.
Toward Comprehensive Industrial Computed Tomography Image Quality Assessment: I. Phantom Design

When comparing the performance of different industrial X-ray computed tomography (CT) systems, reconstruction algorithms, or scan protocols, it is important to assess how well the required inspection and measurement tasks can be performed. Furthermore, it can be very informative to quantify image quality (IQ) metrics that can provide insight into the IQ characteristics that lead to the resulting inspection or measurement task performance. Inspection and measurement task performance is determined by basic characteristics such as spatial resolution; feature contrast, size, and shape; random noise (noise due to statistical uncertainty in measurements); and image artifacts. In this report, we describe a modular phantom set that enables robustly quantifying these characteristics and also enables assessing the performance of the inspection or measurement tasks themselves. The phantom set includes two phantom bodies and several insert types that can be optionally installed in the bodies. Phantom body extensions can be optionally included to increase scatter. The phantom bodies combined with the available insert types can comprehensively evaluate all important IQ metrics and inspection or measurement tasks. The precisely-known phantom body geometry and insert location, geometry, and orientation supports automatic analysis of large, complex experiments of multiple variables. This phantom set, with the associated image analysis software, could potentially serve as a general evaluation method for non-destructive testing (NDT) CT.
Sacred Game: A Goffmanian Ethnography of a Women-Only Public Place in South Korea

Recently, women-only public places have emerged rapidly and become widespread all over South Korea, but very little empirical research has been conducted on how women construct interaction order in such places. This article is a Goffmanian ethnography of how Korean women construct interaction order in a women-only public place. It presents ‘sacred game’ as a conceptual scheme to inform ethnographic research on interaction order. By using this conceptual scheme, we conduct an ethnography of a women-only yoga studio in South Korea. This research shows that women actively engage in sacred game when they appear in a women-only public place where situational proprieties are ambiguous and actions are inconsequential. This research suggests that creating this kind of public place would be better than merely creating a women-only public place itself in order to empower women to form a modern sociability.
E-Readiness Analysis in Development of Information Technology Library: Case Study of Library of Universitas Negeri Padang

—This study aims to identify the level of e-readiness of the Library of Universitas Negeri Padang in the development of information technology-based libraries using the e-readiness tool developed by Mutula and Brakel (2006). Data in this study were obtained from questionnaires, interviews, observations, and documentation. The data were analyzed using the mixed-method concurrent triangulation model. The sample in this study was determined by saturated sampling techniques to obtain quantitative data and purposive sampling to obtain qualitative data. Quantitative analysis shows that the readiness segment of the institution obtained a score of 3.12 which means that in the ready category, the human resource readiness segment obtained a score of 3.31 which is categorized as very ready, and the information readiness segment obtained a score of 2.89 which is categorized as ready. Meanwhile, the score of the infrastructure readiness segment was 3.09 categorized as ready while the external environment readiness segment had a score of 3.10 in the ready category. From the qualitative analysis, the findings showed that the Library Universitas Negeri Padang has applied information technology in almost all library activities and has been running quite effectively. However, it is still constrained related to the freedom of the library in managing the library software system that is still connected and integrated under the management of the computer center of the Universitas Negeri Padang.
Estudo farmacobotânico comparativo entre Nicandra physalodes e Physalis angulata (Solanaceae)

In this work a morphoanatomical comparative characterization was carried out between the leaves of Nicandra physalodes (L.) Gaertn. and Physalis angulata L. (Solanaceae) species used in folk medicine, whose leaves are indicated as diuretic and febrifuge. The botanical identification and macroscopical morphodiagnosis were made after morphological studies. The microscopical morphodiagnosis were carried out by paradermic and transversal cuts of the leaves (blade and petiole), clarified and coloured with safranin and astrablue. Moreover the morphological characters of the flower and fruit, of the two species can be distinguished by the following characters: N. physalodes has the bundle vascular of the middle vein in arc format; P. angulata has the vascular bundle of the middle vein in a semi-circle format; druses in the mesophyll of P. angulata; andthe presence of trichomes glandular-estipitate with bisseriate head in N. physalodes. The morphology of flower and fruit and the anatomy of mesophyll, the vascular bundles of middle vein are the principal distinctive characters between them.
Genetic diversity among potato varieties (Solanum tuberosum L.) grown in Mexico, using RAPD and ISSR markers

RESUMEN En Mexico hay gran diversidad de papas ( Solanum tuberosum L.), pero este rico recurso genetico no se utiliza como debiera debido a la escasa informacion genetica existente. Un analisis de datos consenso de RAPD e ISSR se utilizo para estudiar la diversidad genetica y estructura poblacional en quince cultivares de papa (9 mejorados de Europa, Estados Unidos de America y Mexico, y 6 criollos mexicanos) sembrados en Mexico. Las amplificaciones con 5 iniciadores decameros al azar y 5 iniciadores ISSR generaron 138 bandas de las que 116 (84.4 %) fueron polimorficas. El coeficiente de similitud mas alto (0.89) se detecto entre los cultivares Fianna y Armada. En contraste, el coeficiente de similitud mas bajo (0.55) se obtuvo entre Tollocan y Cambray Rosa Morelos. El alto nivel de diferenciacion genetica entre cultivares (G ST = 0.71) y bajos valores de flujo genetico (N m = 0.19) a traves de todos los loci indicaron que el nivel de divergencia genetica entre los 15 cultivares es alta. El analisis de varianza molecular revelo una contribucion significativa de las diferencias entre regiones, entre cultivares, entre y dentro de las poblaciones, a la diversidad genetica total de los cultivares estudiados. Palabras clave: