Miracle-dz/UniFAR-FTUs huggingface dataset:
Integrated Transmission and Distribution Control

Distributed, generation, demand response, distributed storage, smart appliances, electric vehicles and renewable energy resources are expected to play a key part in the transformation of the American power system. Control, coordination and compensation of these smart grid assets are inherently interlinked. Advanced control strategies to warrant large-scale penetration of distributed smart grid assets do not currently exist. While many of the smart grid technologies proposed involve assets being deployed at the distribution level, most of the significant benefits accrue at the transmission level. The development of advanced smart grid simulation tools, such as GridLAB-D, has led to a dramatic improvement in the models of smart grid assets available for design and evaluation of smart grid technology. However, one of the main challenges to quantifying the benefits of smart grid assets at the transmission level is the lack of tools and framework for integrating transmission and distribution technologies into a single simulation environment. Furthermore, given the size and complexity of the distribution system, it is crucial to be able to represent the behavior of distributed smart grid assets using reduced-order controllable models and to analyze their impacts on the bulk power system in terms of stability and reliability. The objectives of more » the project were to: • Develop a simulation environment for integrating transmission and distribution control, • Construct reduced-order controllable models for smart grid assets at the distribution level, • Design and validate closed-loop control strategies for distributed smart grid assets, and • Demonstrate impact of integrating thousands of smart grid assets under closed-loop control demand response strategies on the transmission system. More specifically, GridLAB-D, a distribution system tool, and PowerWorld, a transmission planning tool, are integrated into a single simulation environment. The integrated environment allows the load flow interactions between the bulk power system and end-use loads to be explicitly modeled. Power system interactions are modeled down to time intervals as short as 1-second. Another practical issue is that the size and complexity of typical distribution systems makes direct integration with transmission models computationally intractable. Hence, the focus of the next main task is to develop reduced-order controllable models for some of the smart grid assets. In particular, HVAC units, which are a type of Thermostatically Controlled Loads (TCLs), are considered. The reduced-order modeling approach can be extended to other smart grid assets, like water heaters, PVs and PHEVs. Closed-loop control strategies are designed for a population of HVAC units under realistic conditions. The proposed load controller is fully responsive and achieves the control objective without sacrificing the end-use performance. Finally, using the T&D simulation platform, the benefits to the bulk power system are demonstrated by controlling smart grid assets under different demand response closed-loop control strategies. « less
Time-Varying identification of Human properties using the Wavelet analysis

This study describes a method for the identification of Time-Varying joint admittance. The method transforms the time signals into a time--frequency representation using the wavelet transform, from which the Time--Varying frequency response function (TV--FRF) is estimated, and the model parameters are derived. Analysis of the performance of the developed method is established by simulation of the human arm. The study showed that increasing the observation time, increase the confidence regions of the estimate. The study showed that smoothing is needed, but it comes with a trade-off between precision and response time. Increasing the time smoothing increases the precision but decreases the response time. The developed method showed promising results by estimating the properties of the simulated model, giving the bases for a posterior study using experimental data.
Cleavage of the Carboxyl‐Terminus of LEACS2, a Tomato 1‐Aminocyclopropane‐1‐Carboxylic Acid Synthase Isomer, by a 64‐kDa Tomato Metalloprotease Produces a Truncated but Active Enzyme

: 1-Aminocyclopropane-1-carboxylic acid (ACC) synthase (ACS) is the principal enzyme in phytohormone ethylene biosynthesis. Previous studies have shown that the hypervariable C-terminus of ACS is proteolytically processed in vivo. However, the protease responsible for this has not yet been identified. In the present study, we investigated the processing of the 55-kDa full-length tomato ACS (LeACS2) into 52-, 50- and 49-kDa truncated isoforms in ripening tomato (Lycopersicon esculentum Mill. cv. Cooperation 903) fruit using the sodium dodecyl sulfate-boiling method. Meanwhile, an LeACS2-processing protease was purified via multi-step column chromatography from tomato fruit. Subsequent biochemical analysis of the 64-kDa purified protease revealed that it is a metalloprotease active at multiple cleavage sites within the hypervariable C-terminus of LeACS2. N-terminal sequencing and matrix-assisted laser desorption/ ionization time-of-flight analysis indicated that the LeACS2-processing metalloprotease cleaves at the C-terminal sites Lys438, Glu447, Lys448, Asn456, Ser460, Ser462, Lys463, and Leu474, but does not cleave the N-terminus of LeACS2. Four C-terminus-deleted (26—50 amino acids) LeACS2 fusion proteins were overproduced and subjected to proteolysis by this metalloprotease to identify the multiple cleavage sites located on the N-terminal side of the phosphorylation site Ser460. The results indisputably confirmed the presence of cleavage sites within the region between the α-helix domain (H14) and Ser460 for this metalloprotease. Furthermore, the resulting C-terminally truncated LeACS2 isoforms were active enzymatically. Because this protease could produce LeACS2 isoforms in vitro similar to those detected in vivo, it is proposed that this metalloprotease may be involved in the proteolysis of LeACS2 in vivo. (Managing editor: Wei WANG)
On the Integration of Medium Wave Infrared Cameras for Vision-Based Navigation

Abstract : The ubiquitous nature of GPS has fostered its widespread integration of navigation into a variety of applications, both civilian and military. One alternative to ensure continued ight operations in GPS-denied environments is vision-aided navigation, an approach that combines visual cues from a camera with an inertial measurement unit (IMU) to estimate the navigation states of a moving body. The majority of vision-based navigation research has been conducted in the electro-optical (EO) spectrum, which experiences limited operation in certain environments. The aim of this work is to explore how such approaches extend to infrared imaging sensors. In particular, it examines the ability of medium-wave infrared (MWIR) imagery, which is capable of operating at night and with increased vision through smoke, to expand the breadth of operations that can be supported by vision-aided navigation. The experiments presented here are based on the Minor Area Motion Imagery (MAMI) dataset that recorded GPS data, inertial measurements, EO imagery, and MWIR imagery captured during flights over Wright-Patterson Air Force Base. The approach applied here combines inertial measurements with EO position estimates from the structure from motion (SfM) algorithm. Although precision timing was not available for the MWIR imagery, the EO-based results of the scene demonstrate that trajectory estimates from SfM offer a significant increase in navigation accuracy when combined with inertial data over using an IMU alone. Results also demonstrated that MWIR-based positions solutions provide a similar trajectory reconstruction to EO-based solutions for the same scenes. While the MWIR imagery and the IMU could not be combined directly, through comparison to the combined solution using EO data the conclusion here is that MWIR imagery (with its unique phenomenologies) is capable of expanding the operating envelope of vision-aided navigation.
The long run Phillips curve and the role of downward nominal wage rigidity in Tunisia

The long run Phillips curve has been a controversial topic for many economists such as Friedman (1968) and Lucas (1972) among others since the 70's. Many new studies concerning the impact of downward nominal wage resistance hypothesis on the long run Phillips curve have enriched the empirical literature. However, the essential idea of this study is to examine the evidence of this hypothesis and its impact on the long run Phillips curve in Tunisia. Relying on annual data covering the period 1962-2004, we estimate two models of the Phillips curve: one is standard and the other with downward nominal wage rigidity in which we are inspired by the works of Akerlof, Dickens and Perry (1996). We adopt two estimation methods: the Ordinary Least Square and the Non Linear Least Square. Our results suggest a possibility of a long run unemployment inflation trade off incorporating the downward nominal wage rigidity hypothesis.
The Application of Corrective Underwater Spinal Traction with Underwater Phototherapy to the Spine Pathology

In this work, we study the effect of water structure on absorption spectra of water that is subject to electromagnetic radiation of the following types: 1. polychromatic visible and infrared polarized (PVIP) light emitted by a "Bioptron" device with a wavelength of 480 to 3,400 nm and frequency of 625 to 88 THz under water via a fiber optic cable and with an exposure of 2, 4, 6, 10, 15, and 30 minutes; 2. electromagnetic waves belonging to a 5.6 mm range with a frequency of 50-52 GHz and an exposure of 2, 4, 6, 10, 15, and 30 minutes via a radiation source with dimensions over 5 cm immersed into water; 3. one-time effect of PVIP light and CO2 at a temperature of 0°C and with an exposure of 4 minutes; 4. one-time effect of electromagnetic waves belonging to a 5.6 mm range and CO2 at a temperature of 0°C and with an exposure of 4 minutes; 5. effect of PVIP light on water from a 10 cm height above the water surface. The conducted studies have shown that the best changes occur in water irradiated with PVIP light during 4 and 15 minutes as compared to the absorption spectra of a control specimen of tap water. Significant changes in the water structure occurred if water was irradiated with PVIP light from a 10-cm height above the water surface during 15 minutes. The studies showed as well that after the end of 4- and 15-minute exposure of water to electromagnetic waves (26 and 15 minutes later, respectively) the water structure significantly improved owing to its unique ability to store and transmit information.
Synergistic studies on interaction of nematode-fungal system of tea plant in Iran.

Identification of the role of each pathogen and their interactions are an important significance for the development of control strategies, and for understanding the formation disease-complex and the evolution of parasitism. The root lesion nematode, Pratylenchus loosi Loof is one of the most serious nematode pests of tea in Iran. The nematode causes die back and stunting of infested plants. In affecting plant, nematode is associated with pathogenic fungi. The root lesion nematode, Pratylenchus loosi and four species of fungi, Rhizoctonia solani, Fusarium proliferatum, F. pallidoroseum and Sclerotium rolfsii, were isolated together from nematode infecting tea plants in Guilan province in Iran. Interaction between nematode and fungi were studied in greenhouse experiments. In this study interaction between P. loosi and all species of fungi had a synergistic effect. Also, the pathogenic influence of P. loosi and all fungi increased greatly when they were applied together to the soil and produced a reduction in plant height, fresh and dry weight. In the treatments with R. solani or F. proliferatum and nematode together, the population of nematodes in root was significantly increased. But the fungus, F. pallidoroseum and S. rolfsii were not significantly affected on the population of nematodes. R. solani showed more synergistic effect than other fungi. This is the first report of pathogenic fungi R. solani, F. pallidoroseum and F. proliferatum on tea plants in Iran.
Identification of nonlinear interconnected systems

In this work we address the problem of identifying a discrete-time nonlinear system composed of a linear dynamical system connected to a static nonlinear component. We use linear fractional representation to provide a unified framework for the identification of two classes of such systems. The first class consists of discrete-time systems consists of a linear time invariant system connected to a continuous nonlinear static component. The identification problem of estimating the unknown parameters of the linear system and simultaneously fitting a m-th order spline to the nonlinear data is addressed. A simple and tractable algorithm based on the separable least squares method is proposed for estimating the parameters of the linear and the nonlinear components. We also provide a sufficient condition on data for consistency of the identification algorithm. Numerical examples illustrate the performance of the algorithm. Further, we examine a second class of systems that may involve a nonlinear static element of a more complex structure. The nonlinearity may not be continuous and is approximated by piecewise affine maps defined on different convex polyhedra, which are defined by linear combinations of lagged inputs and outputs. An iterative identification procedure is proposed, which alternates the estimation of the linear and the nonlinear subsystems. Standard identification techniques are applied to the linear subsystem, whereas recently developed piecewise affine system identification techniques are employed for the estimation of the nonlinear component. Numerical examples show that the proposed procedure is able to successfully profit from the knowledge of the interconnection structure, in comparison with a direct black box identification of the piecewise affine system. As you set out for Ithaka hope the voyage is a long one full of adventure, full of discovery. Laistrygonians and Cyclops, wild Poseidon, you won’t encounter them unless you bring them along inside your soul, unless your soul sets them up in front of you. Keep Ithaka always in your mind. Arriving there is your ultimate goal. But do not hurry the journey at all. Better if it lasts for years; and to anchor at the island when you are old, rich with all you have gained on the way, not expecting that Ithaka will offer you riches. Ithaka has given you the beautiful journey. Without her you would not have set out on the road. She has nothing more to give you. And if you find her poor, Ithaka has not deceived you. Wise as you have become, so full of experience, you must already have understood what Ithakas mean. Ithaka by Constantine P. Cavafy (1911)
Does Customer Value-oriented Management Influence Financial Results? A Supplier's Perspective

Esta investigacion contribuye con una vision teorica y practica de la nueva perspectiva de la gestion del valor del cliente (cvm) y sus implicaciones en los negocios. De hecho, el proposito de este trabajo es probar la influencia de la cvm en los resultados financieros a traves de la participacion de mercado (ms), el margen bruto (gm) y el retorno sobre el capital (roe). Para ello, el enfoque utilizado es un estudio empirico con datos de 107 ejecutivos de ventas de uno de los bancos mas grandes de Chile. Los resultados apoyan la hipotesis de que el cvm tendria una influencia positiva en la tasa de retencion, asi como en la optimizacion de los costos de adquisicion de clientes y los ingresos generados a partir de estos. Este trabajo ademas establece la influencia que tiene la cvm en los resultados financieros de la compania. Para evaluar los resultados de la organizacion, se han seleccionado indicadores financieros relevantes en la evaluacion del desempeno financiero de una empresa. Los resultados ademas senalan que para mantener un buen nivel de confianza las empresas necesitan alcanzar un buen nivel de comunicacion con sus clientes, lo que es particularmente importante, en tanto un alto nivel de cvm podria ser un atributo necesario para el desarrollo de relaciones a largo plazo con los clientes y lograr un crecimiento sostenible de las ventas.
Epidemiological Study of Brain Tumours Incidence in Sudan During 2014-2017

The aim of this study was to highlight the epidemiology of brain tumors (BTs) in Sudan during 2014-2017 as retrospective and surveyed questionnaire collected data method. The data (annual incidence, frequencies of BTs based on gender and age, anatomical location, pathologies and geographical distribution) analyzed using EXCEL software which revealed that: BTs increase annually by a factor of 7.2% and predominant among male with 57.1%. The involved anatomical brain sites were midbrain 35%, left brain (30%) and right brain (24%). BTs observed among age groups of 1-10 years old for both gender with increasing similar trend incidence following aging which peaking at 55-65 years old. The common pathologies of brain were atrophy and infarction that represents 13.8% and 7.2% respectively and benign and malignant tumors represented (19.8%) and (34.4%) respectively. The most endemic sectors by BTs were central and Northern of Sudan that represented 45% and 35% respectively, then eastern and southern of Sudan that represented 12% and 8% respectively.
3D visualization and quantification of marine benthic biogenic structures and particle transport utilizing computer-aided tomography

Computer-aided tomography was used to visualize and quantify biogenic structures (e.g. burrows, shells) in 3 dimensions (3D) by scanning 9 replicate cores obtained from a 41 m deep station in the Gullmarsfjord (Skagerrak, western Sweden). The main objective was to visualize and quantify the biogenic structures and their volumes in the sediment. In addition, the particle transport was studied by adding an aluminum oxide tracer to the sediment-water interface (SWI), which was analysed after 57, 80 and 128 h, in 3 replicate cores each time. A new software programme was devel- oped for rapid and accurate analysis. The fauna in the cores, analysed after scanning, were domi- nated by the brittle stars Amphiura filiformis and A. chiajei. The volumes of 'active' biogenic struc- tures, defined as connecting to the SWI, were generally greatest close to the interface with some secondary peaks, probably related to the position of the disc chamber of the brittle stars. A mean vol- ume of 560 cm 3 of biogenic structures per m 2 of sediment surface was recorded within the sediment (down to a mean depth of 137 mm, where the biogenic structures ceased to be 'active'). Ejection of particles to the SWI (mounding) was calculated to be between 4 and 40 mm 3 h -1 .
Corporate social and environmental disclosure in developing countries: Evidence from Iran

Article history: Received April 23, 2012 Received in revised format 22 October 2012 Accepted 26 October 2012 Available online October 31 2012 This research aims to investigate the extent of social and environmental disclosure (SED) in corporate annual reports. Specifically, This is an exploratory study designed to examine the relationship between corporate social and environmental disclosure (CSED) and corporate attributes and firm-specific factors in a developing country, Iran. In order to do this, we use content analysis approach with sentence count for the level of disclosure measurement by looking into the annual reports of the 66 listed companies in Tehran Stock Exchange. The Panel analysis and econometric software EVIEWS 6 are used for analyzing data. The Results show that there is significant positive relationship between company size and level of CSED also there is significant negative relationship between environment sensitive industries and level of CSED. However, we did not find any relationship between profitability and the level of CSED. © 2013 Growing Science Ltd. All rights reserved.
Range structure, microhabitat use, and activity patterns of the saxicolous lizard Tropidurus torquatus (Tropiduridae) on a rock outcrop in Minas Gerais, Brazil

Aunque Tropidurus es un genero de lagarto extensamente distribuido en Sudamerica y en las islas Galapagos, son escasos los estudios sobre uso del espacio y distribucion espacial. En este trabajo se estudio la organizacion espacial del lagarto saxicola Tropidurus torquatus basado en la poblacion interiorana de uno afloramiento rocoso en el estado de Minas Gerais, sudeste del Brasil. Los lagartos fueron individualmente marcados y observados durante las estaciones reproductiva y no reproductiva. Con el metodo del minimo poligono convexo fue encontrado que el tamano promedio del dominio vital de los machos durante la estacion reproductiva fue mas grande que el de las hembras y en la estacion no reproductiva hembras y machos mantuvieron dominios vitales similares en el tamano. El metodo de la media armonica mostro que el tamano promedio del area de vida de machos fue mayor que el area de las hembras en ambas estaciones. Como esperado para una especie poliginica, el numero medio de machos con dominios vitales sobrepuestos a los de las hembras tendio a ser mas grande en la estacion reproductiva. Intrasexualmente, el numero de hembras con sus dominios vitales asociados a los de otras hembras tambien fue mayor en la estacion reproductiva. Para los machos, este numero permanecio bajo en ambas estaciones, lo que sugiere que los machos usan areas mas exclusivas, mientras los dominios vitales mas pequenos de las hembras al parecer sostengan una mayor densidad de individuos durante la estacion reproductiva. La frecuencia de uso de los microhabitats relacionados a la vegetacion aumento en la estacion no reproductiva y el padron de actividad de los lagartos cambio del bimodal en la estacion reproductiva (periodo lluvioso) para unimodal en la no reproductiva (periodo seco). Asi la organizacion espacial, la utilizacion de los microhabitats y los padrones de actividad de T. torquatus aqui observados fueron todos influenciados por el periodo de tiempo afectando la ecologia espacial de los lagartos.
Examining the Effects of the Recent Global Recession on the Fiscal Multipliers of the G7 Countries

Since 2007, governments around the world have used expansionary fiscal policies to limit the impact of the recession. However, the full economic implications of this stimulus have yet to be fully analysed. This thesis addresses the impact of the recent recession on the fiscal multipliers of the G7 countries and answers the following research question: ‘to what extent has the recent recession influenced the fiscal multipliers of the G7 countries? ’ Both literature and quantitative analyses are conducted in order to provide an answer. In the latter, OLS regression analysis is used. The conclusions show that fiscal multipliers have been affected by the recession. Interestingly, the presence of non-Keynesian effects have been identified. The full extent of this remains country specific, e.g. the multipliers for Japan and the UK have reacted differently. The statistical significance of the results does come into question when interpreting the conclusions. In the future, more research should be conducted to gain a clearer understanding about this topic. Only then will this analysis have more complete answer. FISCAL CONSOLIDATION 2 Table of