Miracle-dz/UniFAR-FTUs huggingface dataset:
Numerical modelling of the electric field in the semiconductor obstacle placed in the coaxial line

In this paper, we present FDTD (finite-difference time-domain) simulation results of the averaged electric field in the semiconductor obstacle placed in the coaxial line. Such layout might be used as a sensing element for the measurement of microwave pulsed power transmitted through the coaxial line. Calculations have been performed for 50 Ω impedance coaxial line filled with air and obstacle made of Si. The dependences of averaged electric field in the obstacle on the microwave frequency, as well as on the height of the obstacle are considered. Situations when the obstacle is placed either on the inner or on the outer conductor of the coaxial line have been investigated.
The effects of foliar application of ascorbic acid (vitamin C) on physiological and biochemical changes of corn (Zea mays L) under irrigation withholding in different growth stages.

To study the effects of ascorbic acid foliar application and limited irrigation in different growth stages on physiological and biochemical changes of corn, an experiment was conducted in Varamin, Iran during the growing season of 2012. The experimental design was randomized complete blocks in split plots arrangement with three replications. Main plots included four different levels of irrigation (complete irrigation, irrigation withholding at 8-leaf stage, irrigation withholding at silks appearance stage and irrigation withholding at both 8-leaf stage and silks appearance stages) and different concentration of foliar application of ascorbic acid (vitamin C) (0, 75, and 150 ppm) were allocated to subplots. The results showed that irrigation withholding conditions in different growth stages significantly decreased seed yield, RWC and total chlorophyll but by contrast increased proline content, antioxidant enzymes activity. Ascorbic acid foliar application in irrigation with holding in different growth stages had positive effect on all attributes in this experiment. In general, the results of the present study indicate that usage of AsA reduces the harmful effects of water deficit stress and increases resistance to drought stress in corn plant.
Antimicrobial and Cytotoxic Properties of the Ascidians Lissoclinum patella, Oxycoryna fascicularis, Didemnum molle and Botryllus schlosseri

The aim of this research is to investigate antimicrobial and cytotoxic activity from Indonesian ascidians. Extracts prepared from the Indonesian ascidians Lissoclinum patella , Oxycoryna fascicularis, Didemnum molle and Botryllus schlosseri were assessed for anti-microbial and cytotoxic properties. Antibacterial activity of the extracts was tested against two Gram-positive bacteria, viz. Bacillus subtilis ATCC 6633 and Staphylococcus aureus ATCC 25923, and three Gram-negative bacteria, viz. Escherichia coli ATCC 25922, Vibrio cholerae ATCC 14035 and Pseudomonas aeruginosa ATCC 101454 using the disk diffusion test. Antifungal activity was also tested against Candida albicans ATCC 10231 and Aspergillus niger ATCC 16404. The minimum inhibitory concentrations (MICs) of potential ascidian extracts were determined by the microdilution technique. Cytotoxicity of the extracts was assessed using the brine shrimp lethality bioassay. By comparing the inhibition zones in the disk diffusion test, the most active anti-bacterial activity against Gram-positive bacteria ( S. aureus and B. subtilis ) was found in the crude extracts of Oxycoryna fascicularis and Didemnum molle . Lissoclinum patella extract showed the highest activity against the Gram-negative bacteria E. coli and V. cholerae . The LC 50 values of the crude extracts of Lissoclinum patella, Didemnum molle, Botryllus schlosseri, and Oxycoryna fascicularis were 74.3, 97.2, 114.7 and 132.9 μg/ml, respectively. In our study, the most promising species for anti-microbial and cytotoxic properties are Lissoclinum patella and Didemnum molle .
Channel Modeling for Diffusive Molecular Communication—A Tutorial Review

Molecular communication (MC) is a new communication engineering paradigm where molecules are employed as information carriers. MC systems are expected to enable new revolutionary applications, such as sensing of target substances in biotechnology, smart drug delivery in medicine, and monitoring of oil pipelines or chemical reactors in industrial settings. As for any other kind of communication, simple yet sufficiently accurate channel models are needed for the design, analysis, and efficient operation of MC systems. In this paper, we provide a tutorial review on mathematical channel modeling for diffusive MC systems. The considered end-to-end MC channel models incorporate the effects of the release mechanism, the MC environment, and the reception mechanism on the observed information molecules. Thereby, the various existing models for the different components of an MC system are presented under a common framework and the underlying biological, chemical, and physical phenomena are discussed. Deterministic models characterizing the expected number of molecules observed at the receiver and statistical models characterizing the actual number of observed molecules are developed. In addition, we provide the channel models for time-varying MC systems with moving transmitters and receivers, which are relevant for advanced applications such as smart drug delivery with mobile nanomachines. For complex scenarios, where simple MC channel models cannot be obtained from first principles, we investigate the simulation- and experiment-driven channel models. Finally, we provide a detailed discussion of potential challenges, open research problems, and future directions in channel modeling for diffusive MC systems.
An Inventory of Tree and Stand Growth Empirical Modelling Approaches with Potential Application in Coppice Forestry (a Review)

We examined currently available empirical growth models which could be potentially applicable to coppice growth and production modelling. We compiled a summary of empirical models applied in coppices, high forests and fast-growing tree plantations, including coppice plantations. The collected growth models were analysed in order to find out whether they encompassed any of 13 key dendrometric and structural variables that we found as characteristic for coppices. There is no currently available complex growth model for coppices in Europe. Furthermore, many aspects of coppice growth process have been totally ignored or omitted in the most common modelling approaches so far. Within-stool competition, mortality and stool morphological variability are the most important parameters. However, some individual empirical submodels or their parts are potentially applicable for coppice growth and production modelling (e. g. diameter increment model or model of resprouting probability). As the issue of coppice management gains attention, the need for a decision support tool (e.g. coppice growth simulator) becomes more actual.
The Potential and Readiness of Tallinn University to Establish Massive Open Online Courses (MOOCs)

This study explores the potential and readiness of Tallinn University (TLU) to establish MOOCs and focuses on the expectations and perceptions of students and academic staff of TLU. The qualitative methodology was used and the focus group interview and face-to-face interview were applied as data collection techniques. The results of the study indicated that both students and academic staff of TLU had positive attitude in spite of some deficiencies and constraints of MOOCs. In addition, it seems that TLU has good resources and potential in developing MOOCs.
CastML - a language for description of casting products and processes

This work presents CastML – an XML dialect for description of casting products and processes. CastML is extension of MatML which is an extensible markup language designed specifically for the exchange of materials information. The set of CastML tags allows to describe materials’ information as well as technological processes, engineering drawings, products classifications and products manufacturers. CastML is simple, understandable and flexible language which makes it attractive for the specialist involved in any aspect of casting research, development, production, or design. The details on key elements of the proposed language are given. Practical application of CastML is illustrated on the example of an iron castings description.
Asset structure and financial performance: a case of firms quoted under commercial and services sector at the Nairobi securities exchange, Kenya

This study sought to determine the relationship between the asset structure and the financial performance of the firms quoted under the commercial and service sector at the NSE, Kenya. The target population by the study was the secondary data from the annual reports of the firms. The asset structure is analysed in term of: Property, Plants and Equipment; current assets; intangible assets; and long term investments and funds, which formed the independent variables. The dependent variable of interest was the financial performance of the firms, and was measured in terms of: earning per share; return on assets; return on equity, profit margin (return on sales); and current ratio, by aid of a composite index. A census was done on the entire firms listed under this sector by the year 2014, for a five year period, 2010 to 2014. A document review guide was used to collect the secondary data from the financial statements of the firms under study. A multiple regression analysis (standard) was conducted with the aid of statistical programs SPSS version 21. The results of the study indicate that asset structure had a significant statistical effect on the financial performance. In particular, the study found that: Property, Plants and Equipment, and long-term investments and funds have a statistically significant effect on financial performance, while current assets and intangible assets do not have statistical significance on financial performance. This study concluded that the firms should increase the allocation of resources towards long term investments and funds, and utilize available resources in terms of the Property, Plant and Equipment effectively. Key w ords: Asset structure, financial performance, listed firms, commercial and services firms. List of acronyms ROA - Return on assets ROE - Return on equity NSE - Nairobi Securities Exchange EPS - Earnings per Share PPE - Property, Plant and Equipment
Altitudinal Variation in a Resident and a Migrant Passerine on Jamaica

THE body size of many bird species varies with altitude. Such variation may be clinal or discontinuous, and is often the basis for subspecific differentiation. Altitudinal variation has been described on continents (Traylor 1950; Moreau 1957; Hamilton 1958, 1961; James 1970; Power 1970) and the very large island of New Guinea (Rand 1936; Mayr 1940). During a study of forest birds on the relatively small island of Jamaica (11,740 sq km), unsuspected altitudinal variation in body size was detected in one species, the resident Bananaquit, Coereba flaveola, one of seven species (four resident and three migrant) that were mist-netted commonly between sea level and 1,100 m. Some evidence, based on very small samples, showed similar altitudinal variation in the migrant Black-and-White Warbler, Mniotilta varia. The purpose of this paper is to present this information and to relate it to what is known of variation in these species on the continent.
Assessing Sprinkler Irrigation Performance Using Field Evaluations at the Medjerda Lower Valley of Tunisia

Irrigation uniformity and wind drift and evaporation losses (WDEL) are major concerns for the design and management of sprinkler irrigation systems under arid or semi-arid conditions. Field trials were carried out to assess irrigation uniformity and WDEL under various wind velocities, sprinkler spacings and operating pressure heads. Based on experimental data, a frequency analysis was performed to infer the occurrence probability of a given uniformity coefficient (UC). In addition, statistical regressions were used to model WDEL as a function of different climatic variables. Increasing the operating pressure head improved uniformity at low wind speeds. It was shown that UC has been severely impaired at wind speeds above 4 m/s. In the prevailing wind conditions, the frequency analysis showed that a sprinkler spacing of 12 m × 12 m provided the best uniformity. In the local conditions, it is recommended to stop irrigation when wind velocity exceeds 4 m/s. Moreover, it was shown that wind speed and relative humidity were the main significant variables influencing WDEL.
Find Optimal Solution for Eggcrate Function Based on Objective Function

In modern compilers and optimizers, the set of possible optimizations is usually very large. In general, for a given application and workload, optimization options do not accrue toward ultimate performance. To avoid selection complexity, users tend to use standard combination options, in general, however, these standard options are not the optimal set for a specific application executing its representative workload. Genetic algorithm developed by Goldberg was inspired by Darwin's theory of evolution which states that the survival of an organism is affected by rule "the strongest species that survives". Darwin also stated that the survival of an organism can be maintained through the process of reproduction, crossover and mutation. Darwin's concept of evolution is then adapted to computational algorithm to find solution to a problem called objective function in natural fashion. In this work test the function known as the “Eggcrate Function”; is described mathematically as: F(X) = X1 2 + X2 2 + 25(Sin 2 X1 + Sin 2 X2) In this problem, there are two design variables with lower and upper limits of [-2π , 2π]. We use genetic algorithm to find optimal solution for solving this problem, Basic philosophy of genetic algorithm and its flowchart are described. Step by step numerical computation of genetic algorithm for solving the eggcrate function will be briefly explained. The results shows that the eggcrate function has a known global minimum at [0, 0] with an optimal function value of zero.
Political perspectives of relationship networks to internationalization of firms in an emerging economy

The neo-institutional theory has been used to explain inter-organizational networks related phenomena from the economic and sociological perspectives. The political perspective has not been often used to study institutional contexts of networks. We aim to analyze the decision-making of the formal institutions in the internationalization process of firms in an emerging economy from a political bias. For the empirical field of study, we considered the Brazilian wine industry. Starting from a case study with twenty-three interviews with representatives of wineries and entities of this industry, our paper furthers the understanding of how institutions influence the internationalization of firms in an emerging economy. Based on the political perspective of the neo-institutional theory, our study describes how institutions, mainly the government, can influence an industry. Government cannot afford resources to benefit or protect all the industries, as well as cannot provide incentives to all firms, and those that are supported will lose competitiveness. For the firms, the choices are based on trying to achieve economic advantages through political influences. For the institutions, the choices are based on political influences considering institutional strategies.
Primary Thyroid Lymphoma as A Manifestation of Rapidly Growing Thyroid Causing Progressive Respiratory Distress

The author present a 73-year old man with rapidly glowing neck mass. He had a 6-year history of hypothyroidism-associated with Hashimoto thyroiditis and maintained L-thyroxine replacement. He had noticed progressive dyspnea with rapid enlargement of the thyroid grand over a month. An incisional biopsy of the thyroid grand for combined pathology and immunohistochemistry revealed diffuse large B cell non-Hodgkin’s lymphoma with germinal center B-cell subtype. Primary thyroid lymphoma requires prompt diagnosis because of its ability to cause progressive compression symptoms. An incisional biopsy of the thyroid grand is required for combined pathology and immunohistochemistry. Combination chemotherapy can dramatically shrink the tumor and briefly resolve the compression symptoms. doi:10.4021/jmc387w
Over-the-air demonstration of spatial multiplexing at high data rates using real-time base-band processing

Over-the-air transmission experiments with a realtime MIMO test-bed are reported. We describe in principle a hardware architecture for spatial multiplexing at high data rates, discuss in detail the implementation on a hybrid FPGA/DSP platform and show measured bit error rates from indoor transmission experiments. Per-antenna rate control and joint transmission are enabled as well using an ideal feed-back link. A functional test of these new techniques is described while detailed transmission experiments are still ongoing.
Tracking features in image sequences using discrete Morse functions

The goal of this contribution is to present an application of discrete Morse theory to tracking features in image sequences. The proposed algorithm can be used for tracking moving figures in a filmed scene, for tracking moving particles, as well as for detecting canals in a CT scan of the head, or similar features in other types of data. The underlying idea which is used is the parametric discrete Morse theory presented in [13], where an algorithm for constructing the bifurcation diagram of a discrete family of discrete Morse functions was given. The original algorithm is improved here for the specific purpose of tracking features in images and other types of data, in order to produce more realistic results and eliminate irregularities which appear as a result of noise and excess details in the data.
Characterization of milk protein concentrate solubility using focused beam reflectance measurement

Milk protein concentrate (MPC) is a newly developed dairy powder with high protein content (40–90 wt%). MPC is known to have relatively poor dissolution properties, rendering traditional testing methods ineffective for characterizing their functionality. To date, various techniques have been used to quantitatively measure the properties of MPC. Mostly, they are conducted offline with considerable sample preparation that influences the reproducibility of the measurement. Here, a methodology to characterize the solubility of MPC using Focused Beam Reflectance Measurement (FBRM) is presented. FBRM provides the ability to monitor in situ the changes in chord length with time over a wide range of suspension concentrations, which directly reflects the solubility of MPC in this case. Faster rate of the chord length reduction implies a better solubility, as more particles break down and dissolve in solution. In this study, the effect of water temperature was investigated for MPC powders. A characteristic dissolution profile for different MPC powders was subsequently established.Abstract(MPC) (40–90 wt%) MPC MPC (FBRM) MPC FBRM MPC MPC MPCRésuméLe concentré de protéines totales de lait (CPT) est une poudre laitière nouvellement développée ayant une teneur élevée en protéine (40–90 %p). Ce produit est connu pour avoir des propriétés de dissolution relativement faibles, rendant les méthodes de mesure traditionnelles inefficaces pour caractériser ses fonctionnalités. À ce jour, différentes techniques ont été utilisées pour mesurer quantitativement les propriétés des CPT. Elles sont majoritairement effectuées hors ligne avec une longue préparation des échantillons qui influence la reproductibilité de la mesure. Une méthode utilisant la technique FBRM pour caractériser la solubilité des CPT est présentée. Cette méthode de mesure de la réflectance d’un faisceau focalisé de lumière permet de suivre in situ les changements de longueur de corde au cours du temps sur une large gamme de concentrations de suspensions qui renvoient directement à la solubilité du CPT dans ce cas. Une vitesse plus rapide de réduction de la longueur de corde signifie une meilleure solubilité puisque plus de particules se cassent et se dissolvent en solution. Dans cette étude, l’effet de la température de l’eau a été étudié sur les poudres de CPT. Un profil de dissolution caractéristique de différentes poudres de CPT a été établi par la suite.
Textile Wastewater Treatment by the Fenton Method

The aim of this study was to determine the efficiency of the decomposition of pollutants present in textile wastewater in the Fenton process. The main processing parameters, namely the optimum quantities of hydrogen peroxide and ferric salts added as well as the pH of a solution, were determined in textile wastewater formed during different technological operations. These data were used to verify the applicability of empirical formulae describing these values. It was found that the use of Fenton’s reagent in the technology of textile wastewater treatment was an efficient method for the decomposition of pollutants and could be successfully applied as a preliminary stage prior to further biological treatment. To achieve the proper efficiency and economy of this solution, continuous control of the wastewater composition and quick optimisation of process conditions are required. It is necessary to check the reaction for a large amount of various types of wastewater and to find relevant relations which would enable quick optimisation of the process with respect to the changing input parameters of the wastewater subjected to treatment.
Policy making as bricolage: the role of platforms in institutional innovation

The making of environmental policies is a multi-stakeholders process where actors often hold antagonistic interests. The paper explores how institutional compromises are reached by the mechanism of collective bricolage. Recent studies are developing a view on institutional innovation as bricolage, but the conditions under which bricolage occurs and succeeds in relation to institutional innovation are still unknown. Drawing on the notion of platform developed in the context of economics performativity, we study their role in bricolage mechanisms. We hold an empirical case study of the GETS platform that was instrumental in developing the European carbon market as a corner-stone of European climate policy. Based on the GETS case study, we find three modalities in which platforms stimulate institutional bricolage: catalyzing combinations, managing learning, fostering compromise. These findings draw on, and extend, the notion of platforms developed in the context of economics performativity, contributing to a better understanding of processes of bricolage and, more widely, of institutional innovation. The managerial implication of this study is to identify the conditions under which compromises become manageable in processes of policy making. 2
Quantum-state engineering assisted by entanglement

We suggest a general scheme for continuous variable quantum-state engineering based on conditional measurements carried out on entangled twin beam of radiation. Realistic detection schemes such as on/off photodetection, homodyne detection, and joint measurement of two-mode quadratures are analyzed in detail. Imperfections of the apparatuses, such as nonunit quantum efficiency and finite resolution, are taken into account. We show that conditional on/off photodetection provides a reliable scheme to verify nonclassicality, whereas conditional homodyning represents a tunable and robust source of squeezed light. We also describe optical continuous variable teleportation as a conditional measurement, and evaluate the degrading effects of finite amount of entanglement, decoherence due to losses, and nonunit quantum efficiency.