Miracle-dz/UniFAR-FTUs huggingface dataset:
Three-Phase Unbalanced Optimal Power Flow Using Holomorphic Embedding Load Flow Method

Distribution networks are typically unbalanced due to loads being unevenly distributed over the three phases and untransposed lines. Additionally, unbalance is further increased with high penetration of single-phased distributed generators. Load and optimal power flows, when applied to distribution networks, use models developed for transmission grids with limited modification. The performance of optimal power flow depends on external factors such as ambient temperature and irradiation, since they have strong influence on loads and distributed energy resources such as photo voltaic systems. To help mitigate the issues mentioned above, the authors present a novel class of optimal power flow algorithm which is applied to low-voltage distribution networks. It involves the use of a novel three-phase unbalanced holomorphic embedding load flow method in conjunction with a non-convex optimization method to obtain the optimal set-points based on a suitable objective function. This novel three-phase load flow method is benchmarked against the well-known power factory Newton-Raphson algorithm for various test networks. Mann-Whitney U test is performed for the voltage magnitude data generated by both methods and null hypothesis is accepted. A use case involving a real network in Austria and a method to generate optimal schedules for various controllable buses is provided.
Special Topic : Cold Atoms Heteronuclear Efimov resonances in ultracold quantum gases

TheEfimov scenario is a universal three-body effect addressing many areas of modern quantum physics. It plays an important role in the transition between fewand many-body physics and has enabled important breakthroughs in the understanding of the universal few-body theory. We review the basic concepts of the Efimov scenario with specific emphasis on the similarities and differences between homonuclear and heteronuclear systems. In the latter scenario, the existence of a second, independently tunable interaction parameter enables novel few-body phenomena that are universal and have no counterexamples in the homonuclear case. We discuss recent experimental approaches using ultracold atomic gases with magnetically tunable interactions and elucidate the role of short-range interactions in the emergence of universal and non-universal behavior.
Study of the haematological and biochemical values and gastrointestinal and haemoparasites in racing pigeons (Columba livia) in Owerri, Imo State, Nigeria

The study was conducted to determine the blood chemistry, and naturally occurring haemo and gastrointestinal parasites of rearing pigeons (Columba livia) in Owerri, Imo State, Nigeria. The packed cell volume, white blood cell, red blood cell, mean cell volume, mean haemoglobin concentration and total bilirubin values of the female pigeons were significantly (p < 0.05) different from their male counterparts. All the other haematological and serum biochemical parameters measured were similar (p > 0.05) between the two groups. Out of 150 pigeons examined for prevalence of parasites, 70 (46.7%) of them were infected with gastro-intestinal parasites, of which 30 (42.9%) were males and 40 (57.1%) females. Four gastrointestinal parasites were identified, with Trichomonas sp. returning the highest prevalence of 42.8%, followed by Eimeria sp. (28.6%), while coccidian oocysts and Ascaridia sp. each gave the prevalence rate of 14.3%. Results of haemoparasitological examination of thin blood smears revealed haematozoa of two genera: Haemoproteus sp. and Plasmodium sp. The haemo-parasitological examination revealed that Haemoproteus sp. was more common, with the prevalence of 30 (75.0%) for males and 70 (87.5%) for females. Plasmodium sp. gave prevalences of 10 (25.0%) for both, male and female. Fecal cultures recorded high growth of bacterial organisms, of which the prevalence for Proteus sp. was 130 (86.7%), while Enterococcus sp. was 20 (13.3%). Overall, 40.0% of the pigeons had bacterial infections. It is concluded that there was high prevalence of gastrointestinal and haemoparasites in rearing pigeons in Owerri, Imo State, Nigeria. However, these parasites did not cause any observable clinical effects in the serum biochemical and haematological parameters of the pigeons.
Logophoricity and Locality: A View from French Anaphors

Abstract In many unrelated languages, the same anaphor is either subject to Condition A of the binding theory, or exempt from it but with specific interpretive properties. On the basis of French data and crosslinguistic comparisons, I first show that such exempt anaphors must be anteceded by logophoric centers. Elaborating on but modifying Sells 1987, I provide specific tests to argue that these logophoric antecedents can be classified into two kinds of perspective centers, attitude holders and empathy loci, thus reducing logophoricity to mental perspective. Next, I propose to derive the logophoricity of exempt anaphors from the following hypothesis: seemingly exempt anaphors are in fact bound by silent logophoric pronouns introduced by syntactically represented logophoric operators within their local domain. Crucially, this hypothesis, which is independently supported by exhaustive coreference constraints on locally cooccurring exempt anaphors, also accounts for their apparent exemption from Condition A, reanalyzed here as local binding by a silent logophoric binder.
Penalisation techniques for one-dimensional reflected rough differential equations

In this paper we solve real-valued rough differential equations (RDEs) reflected on an irregular boundary. The solution $Y$ is constructed as the limit of a sequence $(Y^n)_{n\in\mathbb{N}}$ of solutions to RDEs with unbounded drifts $(\psi_n)_{n\in\mathbb{N}}$. The penalisation $\psi_n$ increases with $n$. Along the way, we thus also provide an existence theorem and a Doss-Sussmann representation for RDEs with a drift growing at most linearly. In addition, a speed of convergence of the sequence of penalised paths to the reflected solution is obtained. \\ We finally use the penalisation method to prove that the law at time $t>0$ of some reflected Gaussian RDE is absolutely contiuous with respect to the Lebesgue measure.
Aalborg Universitet An untapped potential for imaging of peripheral osteomyelitis in paediatrics using [ 18 F ] FDG PET / CT-the inference from a juvenile porcine model

Purpose: To examine parameters affecting the detection of osteomyelitis (OM) by [F]FDG PET/CT and to reduce tracer activity in a pig model. Background: [F]FDG PET/CT is recommended for the diagnosis of OM in the axial skeleton of adults. In children, OM has a tendency to become chronic or recurrent, especially in low-income countries. Early diagnosis and initiation of therapy are therefore essential. We have previously demonstrated that [F]FDG PET/CT is promising in juvenile Staphylococcus aureus (S. aureus) OM of peripheral bones in a pig model, not failing even small lesions. When using imaging in children, radiation exposure should be balanced against fast diagnostics in the individual case. Methods: Twenty juvenile pigs were inoculated with S. aureus. One week after inoculation, the pigs were [F]FDG PET/CT scanned. PET list-mode acquired data of a subgroup were retrospectively processed in order to simulate and examine the image quality obtainable with an injected activity of 132 MBq, 44MBq, 13.2 MBq, and 4.4 MBq, respectively. Results: All lesions were detected by [F]FDG PET and CT. Some lesions were very small (0.01 cm), and others were larger (4.18 cm). SUVmax was higher when sequesters (p = 0.023) and fistulas were formed (p < 0.0001). The simulated data demonstrated that it was possible to reduce the activity to 4.4 MBq without compromising image quality in pigs. Conclusions: [F]FDG PET/CT localized even small OM lesions in peripheral bones. It was possible to reduce the injected activity considerably without compromising image quality, impacting the applicability of PET/CT in peripheral OM in children.
Assessment of Ultrasound Assisted Extraction as an Alternative Method for the Extraction of Anthocyanins and Total Phenolic Compounds from Maqui Berries (Aristotelia chilensis (Mol.) Stuntz)

Research interest regarding maqui (Aristotelia chilensis) has increased over the last years due to its potential health benefits as one of the most antioxidant-rich berries. Ultrasound-assisted extraction (UAE) is an advanced green, fast, and ecological extraction technique for the production of high quality extracts from natural products, so it has been proposed in this work as an ideal alternative extraction technique for obtaining extracts of high bioactivity from maqui berries. In order to determine the optimal conditions, the extraction variables (percentage of methanol, pH, temperature, ratio “sample mass/volume of solvent”, amplitude, and cycle) were analyzed by a Box-Behnken design, in conjunction with the response surface method. The statistical analysis revealed that the temperature and the percentage of methanol were the most influential variables on the extraction of the total phenolic compounds and total anthocyanins, respectively. The optimal extraction time was determined at 15 min for total phenolic compounds, while it was only 5 min for anthocyanins. The developed methods showed a high precision level with a coefficient of variation of less than 5%. Finally, the new methods were successfully applied to several real samples. Subsequently, the results were compared to those that were obtained in previous experiments by means of microwave assisted extraction (MAE). Similar extraction yields were obtained for phenolic compounds under optimized conditions. However, UAE proved to be slightly more efficient than MAE in the extraction of anthocyanins.
Soil Stabilization Using Bitumen Emulsion and Cement Combination as Additive

This study examined effect of stabilising lateritic soil with combination of bitumen emulsion and cement. Soil samples were obtained from borrow pits located in Kwali Area Council in Abuja. Three percentages of additives were considered: 4%, 6% and 8%. The bitumen emulsion and cement contents were combined in percentages: 100:0, 75:25, 50:50, 25:75 and 0:100 to form five additives. The stabilized soils and unstabilized soils (control) geotechnical properties such as Unconfined Compressive Strength (UCS) test and California Bearing Ration (CBR) test were determined. The UCS and CBR for soil samples A and B were 0.46 MPa and 19.6%, 0.95 MPa and 22.6%, respectively. The CBR of soil A at 4% additives of mix proportions 100%/0%, 75%/25%, 50%/50%, 25%/75% and 0%/100% were 49.1%, 68.8%, 140.5%, 172.1% and 218.5%, respectively. The corresponding values for UCS were 0.64, 0.66, 1.21, 1.27 and 1.33. While for 8% additives the CBR for soil B were 78.4%, 88.4%, 180.5%, 224.2%, 288.1% and UCS were 0.48, 0.68, 1.50, 2.16 and 2.45, respectively. It was observed that both the UCS and CBR values increased as the cement component increased for both soil samples. Stabilising laterite with mixture of bitumen emulsion and cement improved the strength of the soil.
Impact of frying on iodine value of vegetable oils before and after deep frying in different types of food in Kenya

Vegetable oils are triglycerides extracted from plants. Most of these oils are extracted from seeds or fruits of plants and are classified as edible and non-edible oils. Deep frying is one method which involves submerging the food in hot oil. Five types of food were deep- fried in five types of oil for 6 hrs. The oils were then divided into two portions; one portion was stored at room temperature and the other portion under refrigeration (40 ºC) for 5 days. Frying was repeated using these oils after 5 days for another 6 hours making the total frying time to be 12 hours. Iodine value was determined according to Wijs method. Fresh palm oil had relatively lower iodine value of 45.58 g of iodine/100g of oil while corn and soybean showed higher values of 131.98 g of iodine/100g of oil and 129.44 g of iodine/100g of oil respectively. The main objective of the study was to evaluate the iodine value and storage conditions of selected vegetable oils after deep frying different types of food in Kenya. The study concluded that soybean oil is susceptible to oxidation.
Impact of crude oil pollution on marine dimethyl sulfide production

Phytoplankton are photosynthetic microorganisms, which are commonly known for their position at the base of the oceanic food chain, followed by zooplankton. Despite their small size, phytoplankton are the ocean’s main primary producers and account for approximately half of global primary productivity. Thus, these species are responsible for carbon consumption and oxygen production, which is a great interest for modern society as the anthropogenic carbon dioxide production has been influencing global climate patterns (Zindler et al. 2014).
The Structure and Pricing of Corporate Debt Covenants

We provide evidence on the covenant structure of corporate loan agreements. Building on the work of Jensen and Meckling [1976, Theory of the Firm: Managerial Behavior, Agency Costs, and Captial Structure,Journal of the Financial Economics3, 305–360], Myers [1977, Determinants of Corporate Borrowing,Journal of Financial Economics5, 145–147] and Smith and Warner [1979, On Financial Contracting: An Analysis of Bond Covenants,Journal of Financial Economics7(2), 117–161]. We summarize and test the implications for what we refer to as the Agency Theory of Covenants (ATC), using a large sample of privately placed corporate debt. Our results are consistent with many of the implications of the ATC, including a negative relation between the promised yield on corporate debt and the presence of covenants. We also find that borrower and lender characteristics, as well as macroeconomic factors, determine covenant structure. Loans are more likely to include protective covenants when the borrower is small, has high growth opportunities or is highly levered. Loans made by investment banks and syndicated loans are also more likely to include protective covenants, as are loans made during recessionary periods or when credit spreads are large. Finally, we show that consistent with the ATC, firms that elect to issue private rather than public debt are smaller, have greater growth opportunities, less long-term debt, fewer tangible assets, more volatile cash flows and include more covenants in their debt agreements. An important byproduct of our analysis is to demonstrate empirically that covenant structure and the yield on corporate debt are determined simultaneously.
BROAD Lyα EMISSION FROM THREE NEARBY BL LACERTAE OBJECTS

We present far-UV HST/COS spectra of four nearby BL Lac objects. BL Lac spectra are dominated by a smooth, power-law continuum which arises in a relativistic jet. However, the spectra are not necessarily featureless; weak, broad- and/or narrow-line emission is sometimes seen in high-quality optical spectra. We present detections of Lyα emission in HST/COS spectra of Mrk 421 (z = 0.030) and PKS 2005−489 (z = 0.071) as well as an archival HST/GHRS observation of Mrk 501 (z = 0.0337). Archival HST/STIS observations of PKS 2155−304 (z = 0.116) show no Lyα emission to a very low upper limit. Using the assumption that the broad-line region (BLR) clouds are symmetrically placed around the active galactic nucleus (AGN), we use these measured Lyα emission features to constrain either the relativistic Γ values for the ionizing continuum produced by the jet (in the ionization-bounded case) or the mass of warm gas (in the density-bounded case). While realistic Γ values can be obtained for all four cases, the values for Mrk 421 and PKS 2155−304 are high enough to suggest that covering factors of BLR clouds of ∼1%–2% might be required to provide consistency with earlier values of Doppler boosting and viewing angles suggested for this class of BL Lacs. This discrepancy also exists in the case of M 87, where the amount of Doppler boosting in our direction is expected to be minimal, again suggestive of a small covering factor of BLR clouds. If, as these small covering factors might suggest, the assumptions of a density-bounded model could be more correct, then the observed Lyα luminosities require that BL Lac/FR 1 nuclei possess very little warm gas (10−4 to 10−5 M☉) as suggested by Guilbert et al. If these clouds are in pressure balance with a hotter (∼106 K) gas, the BLR contains too little mass to power the AGN by accretion alone.
POLISH JOURNAL OF NATURAL SCIENCES

The development of double low varieties of oilseed rape and the growth of the biofuel sector have contributed to the launching of attractive high-protein feeds into the local market. Rapeseed meal and cake, which have a high content of protein with a desirable amino acid profile, can partially replace soybean meal in pig diets. The use of rapeseed-based feeds in pig nutrition is limited by the presence of antinutritional components: glucosinolates and their breakdown products. Double low varieties of oilseed rape are low in glucosinolates, and the content of antinutritional factors in rapeseed meal and cake can be further reduced by thermal processing. High crude fiber content, which reduces nutrient digestibility, is yet another antinutritional factor in rapeseed meal. A better knowledge of the chemical composition of rapeseed products, including the limitations resulting from the presence of antinutritional factors, will contribute to their wider use in pig feeding. The aim of this study was to determine the nutritional value of rapeseed meal and cake, and to evaluate their potential use in pig nutrition. SKŁAD CHEMICZNY I WYKORZYSTANIE PRODUKTÓW RZEPAKOWYCH W ŻYWIENIU ŚWIŃ Piotr Kaczmarek, Daniel Korniewicz, Krzysztof Lipiński, Magdalena Mazur 1 Cargill Polska Sp. z o.o. w Kiszkowie 2 Katedra Żywienia Zwierząt i Paszoznawstwa Uniwersytet Warmińsko-Mazurski w Olsztynie S ł o w a k l u c z o w e: śruta rzepakowa, makuch rzepakowy, glukozynolany, świnie. Address: Krzysztof Lipiński, University of Warmia and Mazury, M. Oczapowskiego 5, 10-719 Olsztyn, Poland, phone: +48(89) 523 35 19, e-mail: krzysztof.lipinski@uwm.edu. pl
Effect of N fertilization and plant density on yield and yield components of grain sorghum under climatic conditions of Sistan, Iran

yield components In order to study the effect of different levels of N fertilization and plant density on yield and yield components of grain sorghum cv. Sistan, an experiment was conducted in agricultural research farm of Zehak, Iran in 2009 as a split-plot experiment based on a Randomized Complete Block Design with three replications in which the main plot was dedicated to N fertilization (at four levels of 0, 75, 150 and 225 kg N ha) and the sub-plot to plant density (at four levels of 12, 15, 25 and 50 plants m). It was found that N fertilization levels significantly influenced all studied traits except panicle number per m and the changes in plant density affected all studied traits significantly. In addition, the interaction between N fertilization and plant density was significant for gain number per panicle, 1000-grain weight, grain yield, biological yield and harvest index. Means comparison of simple effects revealed that the application of N fertilizer up to 150 kg ha increased grain number per panicle, harvest index and grain yield significantly. Furthermore, although the increase in plant density up to 50 plants m resulted in the significant loss of 1000-grain weight, grain number per panicle and harvest index, it significantly improved grain yield owing to the significant increase in panicle number per m. In total, it was found that if N fertilization sufficed, the increase in plant density would effectively improve economical yield of sorghum so that the highest grain yield of 2388.33 kg ha was obtained from the treatment of 225 kg N ha at the density of 50 plants m. Therefore, it is recommended to apply 225 kg N ha and to use the density of 50 plants m to realize optimum yield of grain sorghum cv. Sistan in Zabol region, Iran. © 2013 PSCI Publisher All rights reserved.
Sensitivity analysis of a time-delayed thermo-acoustic system via an adjoint-based approach

Abstract We apply adjoint-based sensitivity analysis to a time-delayed thermo-acoustic system: a Rijke tube containing a hot wire. We calculate how the growth rate and frequency of small oscillations about a base state are affected either by a generic passive control element in the system (the structural sensitivity analysis) or by a generic change to its base state (the base-state sensitivity analysis). We illustrate the structural sensitivity by calculating the effect of a second hot wire with a small heat-release parameter. In a single calculation, this shows how the second hot wire changes the growth rate and frequency of the small oscillations, as a function of its position in the tube. We then examine the components of the structural sensitivity in order to determine the passive control mechanism that has the strongest influence on the growth rate. We find that a force applied to the acoustic momentum equation in the opposite direction to the instantaneous velocity is the most stabilizing feedback mechanism. We also find that its effect is maximized when it is placed at the downstream end of the tube. This feedback mechanism could be supplied, for example, by an adiabatic mesh. We illustrate the base-state sensitivity by calculating the effects of small variations in the damping factor, the heat-release time-delay coefficient, the heat-release parameter, and the hot-wire location. The successful application of sensitivity analysis to thermo-acoustics opens up new possibilities for the passive control of thermo-acoustic oscillations by providing gradient information that can be combined with constrained optimization algorithms in order to reduce linear growth rates.
Non-Markovian effects in the quantum noise of interacting nanostructures

We present a theory of finite-frequency noise in non-equilibrium conductors. It is shown that Non-Markovian correlations are essential to describe the physics of quantum noise. In particular, we show the importance of a correct treatment of the initial system-bath correlations, and how these can be calculated using the formalism of quantum master equations. Our method is particularly important in interacting systems, and when the measured frequencies are larger that the temperature and applied voltage. In this regime, quantum-noise steps are expected in the power spectrum due to vacuum fluctuations. This is illustrated in the current noise spectrum of single resonant level model and of a double quantum dot --charge qubit-- attached to electronic reservoirs. Furthermore, the method allows for the calculation of the single-time counting statistics in quantum dots, measured in recent experiments.