Miracle-dz/UniFAR-FTUs huggingface dataset:
Mathematical modeling of a three-phase trickle bed reactor

The transient behavior in a three-phase trickle bed reactor system (N2/H2O-KCl/activated carbon, 298 K, 1.01 bar) was evaluated using a dynamic tracer method. The system operated with liquid and gas phases flowing downward with constant gas flow QG = 2.50 x 10-6 m3 s-1 and the liquid phase flow (QL) varying in the range from 4.25x10-6 m3 s-1 to 0.50x10-6 m3 s-1. The evolution of the KCl concentration in the aqueous liquid phase was measured at the outlet of the reactor in response to the concentration increase at reactor inlet. A mathematical model was formulated and the solutions of the equations fitted to the measured tracer concentrations. The order of magnitude of the axial dispersion, liquid-solid mass transfer and partial wetting efficiency coefficients were estimated based on a numerical optimization procedure where the initial values of these coefficients, obtained by empirical correlations, were modified by comparing experimental and calculated tracer concentrations. The final optimized values of the coefficients were calculated by the minimization of a quadratic objective function. Three correlations were proposed to estimate the parameters values under the conditions employed. By comparing experimental and predicted tracer concentration step evolutions under different operating conditions the model was validated.
PROVIDING SECURITY TO DATA STORED ON CLOUDS USING ROLE BASED APPROACH FOR DATA CENTRIC APPROACH

Most present security arrangements are based on perimeter security. However, Cloud computing breaks the organization borders. When data stored on the Cloud, So indirectly data reside outside the organizational boundaries. This may leads users to lost control over their data and raises security issues that slow down the use of Cloud computing. Data-centric access control approach with role-based expressiveness in which security is concern on protecting user data regardless the Cloud service provider who is responsible to hold data. Identity-based and proxy re-encryption techniques are used to Securing the authorization model. Data is encrypted and authorization rules are cryptographically protected to stored user data against the service provider access or misbehavior. The authorization model provides very high expressiveness with role hierarchies and resource hierarchical support. The solution takes advantage of the logic formalism provided by Semantic Web technologies, which make possible advanced rule management like semantic conflict detection. A proof of concept implementation has been developed and a working prototypical deployment of the proposal has been integrated within Google services.
Semiconductor lasers as dynamical systems

Semiconductor lasers are being used every day in their millions, for example, in CD and DVD players and in optical communications networks. Mathematically, a semiconductor laser is a damped nonlinear oscillator. However, due to its nonlinear nature and a low reflectivity of its facet mirrors, such a laser may show an amazing range of complicated dynamics in the presence of external influences. In this paper we discuss two ‘classical’ examples of laser systems to show how tools from dynamical systems theory can be used to understand their behaviour. First, we consider a semiconductor laser with optical injection and demonstrate that the bifurcation diagram of a three-dimensional vector field model is in excellent agreement with an experimental stability diagram. Second, we discuss a semiconductor laser receiving optical feedback of its own light after reflection on a mirror. This system is modelled by a system of delay differential equations, and we show how transitions to chaos can be understood with the help of numerical bifurcation techniques.
THE PENNSYLVANIA STATE UNIVERSITY SCHREYER HONORS COLLEGE DEPARTMENT OF BIOCHEMISTRY AND MOLECULAR BIOLOGY IDENTIFYING INHIBITORS OF TRANS‐TRANSLATION IN METHICILLIN RESISTANT STAPHYLOCOCCUS AUREUS CHRISTOPHER RAE SPRING 2015 A thesis submitted in partial fulfillment of the requirements for a baccal

The development of antibiotic resistance among infectious bacteria is a serious public health problem. Methicillin resistant Staphylococcus aureus (MRSA) infections in particular have affected society for generations, demanding the need for new treatment options focused on previously untargeted mechanisms. The trans-translation pathway presents a good target for novel antibiotic development because it is universally conserved among bacteria and is essential for survival. This pathway uses two key components, SmpB and transfer-messenger RNA (tmRNA), which release stalled ribosome complexes that would otherwise accumulate and result in cell death. Identification of small molecule inhibitors against this pathway in MRSA has revealed a set of promising novel antibiotics that could one day treat this deadly infection. Forty-six Kenneth Keiler Laboratory (KKL) compounds that inhibit trans-translation in E. coli were identified in a high-throughput screen. Broth microdilution assays showed that four of these compounds inhibit growth of S. aureus strains, including MRSA, at concentrations as low as 0.7 μM. This is comparable to antibiotics in current use, such as vancomycin or clindamycin. All four compounds are oxadiazoles, characterized by a central five-membered heterocyclic ring and flanking phenyl derivatives. An in vitro trans-translation assay was established using S. aureus tmRNA and SmpB, and was used to evaluate the activity of these compounds. Inhibition of trans-translation was observed at levels nearing 25%. In contrast, no inhibition of translation was observed, indicating that these compounds specifically target transtranslation. Bacterial cytological profiling (BCP) was adapted and optimized for use with suspected trans-translation inhibitors. BCP is a technique that takes advantage of the unique cell
Investigating the relationship between local climate zone and land surface temperature using e a , c , d , Ran Wang b an improved WUDAPT methodology – A cas study of Yangtze River Delta , China

uantify the land (UHI) Article history: Received 27 February 2017 017 ⁎ Corresponding author at: Room 505, http://dx.doi. org/10.1016/j.uclim. 2017.05 2212-0955 © 2017 Elsevier B.V. All rights The concept of Local Climate Zone (LCZ) was developed to q relationship between urban morphology and urban heat is us air temir tempery to utilize ive assessrface temo establish Received in revised form 22 May 2 Accepted 24 May 2017
What interventions help teens and young adults prevent and manage behavioral health challenges ?

Context for this review At the request of the Colorado Health Foundation, AcademyHealth undertook this review to assess existing evidence on interventions to help teens and young adults prevent and manage behavioral health challenges in middle and high school, college, community, and workplace settings. We examined previously synthesized research concerning the effectiveness of interventions targeting three areas: depression/anxiety, substance use, and suicide prevention. The goal of the review was to help the Foundation identify promising interventions across a broad range of behavioral health challenges experienced by teens and young adults.
Potential field Investigation of the Liberia Basin, West Africa

Euler deconvolution is a useful tool for providing estimates of the localities and depth of magnetic and gravity sources. Wavelet analysis is an interesting tool for filtering and improving geophysical data. The application of these two methods to gravity and magnetic data of the Liberia basin enable the definition of the geometry and depth of the subsurface geologic structures. The study reveals the basin is sub-divided and the depth to basement of the basin structure ranging from 5km at its Northwest end to 10km at its broadest section eastward. (Journal of American Science 2010;6(7):199-207). (ISSN: 1545-1003).
Mapping Koch curves into scale-free small-world networks

The class of Koch fractals is one of the most interesting families of fractals, and the study of complex networks is a central issue in the scientific community. In this paper, inspired by the famous Koch fractals, we propose a mapping technique converting Koch fractals into a family of deterministic networks called Koch networks. This novel class of networks incorporates some key properties characterizing a majority of real-life networked systems—a power-law distribution with exponent in the range between 2 and 3, a high clustering coefficient, a small diameter and average path length and degree correlations. Besides, we enumerate the exact numbers of spanning trees, spanning forests and connected spanning subgraphs in the networks. All these features are obtained exactly according to the proposed generation algorithm of the networks considered. The network representation approach could be used to investigate the complexity of some real-world systems from the perspective of complex networks.
Willingness to Pay for Drinking Water in Some Selected Dryland Areas of West Bengal: A Contingent Valuation Approach

The paper attempts to consider the valuation of dri nking water using contingent valuation method in the dryland areas of West Benga l. The issue is important as in-house drinking water facilities are not available to the ouseholds in our study area and people are dependent on common-pool sources like tube-well , aterfall and watershed for drinking water in our specified dry land areas. Bot h ‘dichotomous-choice type’ closed ended and open ended cases are considered to examin e the willingness to pay by the people to conserve and to get supply of drinking wa ter in the dryland areas of the state. It has been estimated that the average willingness to pay by the poverty-stricken forest dwellers for the above-mentioned purpose is Rs.7. 91 per month. Given that the stakeholders are poor, the amount of willingness to pay (though low) shows the willingness of the stakeholders to conserve water f or drinking as they cannot survive
Short and Sweet or Just Short? The Readability of Product Disclosure Statements

Given the importance of information in making informed financial decisions, it is vital that investors are able to understand the information provided to them. With this in mind, in 2013, New Zealand legislators replaced the existing disclosure documents with the Product Disclosure Statement (“PDS”). The change was in response to large and complex disclosure documents from providers of new or ongoing sales of financial products. PDS documents have a strictly enforced word limit and are meant to be written in plain English to allow “prudent but non-expert” investors access to the information they contain. We compare the readability of the old prospectus and investment statements (the disclosure documents legally required before 2013) with the new PDS for a sample of superannuation mutual funds (referred to in New Zealand as KiwiSaver funds). We find that while the documents are definitely shorter, there have been mixed improvements in the readability of the documents. The main improvements are a reduction in the amount of finance terminology used, while the language in PDSs compared to investment statements is actually more complex, likely driven by the word limit. As a result, while investors require less finance knowledge, they appear to require a higher level of general education to understand the documents, potentially putting the information out of reach of over half the general population.
Mitigation of Power Quality Issues by Utilizing Shunt Hybrid Active Power Filter Strategy on the Power Distribution System

This paper investigates compensation of power quality problems generated in industrial and domestic applications using three phase shunt hybrid active power filter strategy. The current harmonic distortion and reactive power demand were serious power quality problems occurred to distort the performance of the power system load. Traditionally, VSI based shunt active power filter is used to address the power quality problems. The conventional shunt active power filter required high DC link voltage to compensate power quality problems. To overcome this problem, neutral point clamped inverter based shunt active power filter strategy is proposed in this paper. The simulation investigations were carried out using matlab/simulink and results are verified to validate the proposed system and compared to conventional technique. Keywords–NPC; dc link capacitor; harmonic compensation; power factor correction; reactive power compensation; hybrid filter.
The use of dried whole processed eggs as a feed additive to maintain broiler performance.

Summary The purpose of this study is to seek a novel alternative to antibiotic supplement in poultry diets and investigate the effects of two levels (0.15% and 0.30%) of dried whole processed eggs (DWPE) for broilers. Eggs that are not approved for human consumption were collected and then were subjected to seven different processing methods: (dried at 55C o , boiled at 100 C o , frozen at -18C o , frozen and boiled, autoclaved at 121C o , cooked at 131C o and dried without shell at 55C o ). A factorial arrangement of 7x2 settings plus a negative control and a positive control with virginiamycin were used resulting in a total of 16 experimental treatments. Each treatment was replicated 4 times, with a total 448 Ross chicks used. Chemical and, microbiological properties were determined for tested samples of DWPE. Performance values measured were: body weight and gain, feed intake, yield and mortality, feed efficiency, ratio and index of lymphoid organs. The experimental period started from day 4 of age and lasted till day 32 of age. Results showed that there was a significant interaction between Processing vs. Level for body weight, gain, feed intake and efficiency, giblets and lymphoid organs weight (bursa, spleen, thymus), index and ratio. Results also indicated that immune response of broiler chicks can be influenced by the use of DWPE. Autoclaved processing had the best feed efficiency of the two controls used. The supplementation of 0.15% and 0.30% DWPE improved body weight and body weight gain, feed efficiency in comparison to the use of control and control with virginiamycin diets. Carcass traits also were positively affected in most cases with the addition of 0.30% level. It is concluded that 0.30% of DWPE can be used in broiler diets as an alternative supplement and that it showed a clear improvement on the performance and immunity structure of chicks in comparison with control or control with antibiotic diets.
Simultaneous Control of Active and Reactive Powers of Vanadium Redox Flow Battery Systems in Flexible Microgrids

Ab s tract This paper discusses the control of flexible microgrids, consisting of a Redox Flow Batteries (RFB) and a new power conditioning system (PCS) for the RFB. Considering the importance of energy storage, this study is essential in power systems that are developed cautiously. RFB is connected to power system by a DC/DC or DC/AC converter to produce a DC voltage. It is very important that this converter be e ffectively modeled and controlled for applications in microgrids. This paper focuses on simultaneous active and reactive power control in RFB systems. In this regard, this study proposes a new Flexible AC Transmission System (FACTS) compensator for microgr ids which is able to control the active and reactive power. This type of compensator presents a good transient response. The simulation results, performed by Matlab Simulink toolbox, show the validity of the proposed system 1
Out-of-Pocket Health Care Expenditure in Turkey: Analysis of the Household Budget Surveys 2002-2008

This paper analyses the prevalence of ‘catastrophic’ out-of-pocket health expenditure in Turkey and identifies the factors which are associated with its risk using the Turkish Household Budget Surveys from 2002 to 2008. A sample selection approach based on Sartori (2003) is adopted to allow for the potential selection problem which may arise if poor households choose not to seek health care due to concerns regarding its affordability. The results suggest that poor households are less likely to seek health care as compared to non-poor households and that a negative relationship between poverty and experiencing catastrophic health expenditure remains even after allowing for such selection bias. Our findings, which may assist policy-makers concerned with health care system reforms, also highlight factors such as insurance coverage, which may protect households from the risk of incurring catastrophic health expenditure.
Modelling the vertical structure of the atmospheric boundary layer over Arctic fjords in Svalbard

The vertical structure of the atmospheric boundary layer (ABL), simulated with the mesoscale model Weather Research and Forecasting (WRF) as well as with its polar optimized version Polar WRF, was compared to tethered balloon soundings and mast observations taken in March and April 2009 from two Arctic fjords in Svalbard. From twelve short (48 h) simulations, the Quasi‐Normal Scale Elimination scheme for the ABL and the NOAH land surface scheme for the surface were found to perform best and were selected for one long (16 day) simulation. The differences in performance of the standard WRF and Polar WRF were marginal. A warm bias, especially near the surface, was found in the modelled temperature profiles related to underestimated temperature inversion strength and depth. The modelled humidity inversions were generally deeper but weaker than the observed, and often occurred independently of temperature inversions. The largest errors in temperature and humidity occurred under high pressure conditions. Multiple temperature and humidity inversions were usually not captured by WRF. Compared to the compact sea ice east of Svalbard, the modelled temperature and humidity inversions were weaker and less frequent over the fjords. The biases in modelled wind speed profiles were closely related to low‐level jets (LLJs); the modelled LLJs were stronger and deeper, and typically located at higher altitudes than the observed LLJs. Errors in the near‐surface variables were notably reduced by applying post‐processing equations based on other modelled variables. Copyright © 2012 Royal Meteorological Society
The CPLP Corpus : A Pluricentric Corpus for the Common Portuguese Spelling Dictionary ( VOC )

The Pluricentric Corpus of the Portuguese Language (CPLP Corpus) aims to provide comparable corpora for the national varieties of the countries where Portuguese is an official language, making it possible to undertake corpus-based comparisons among the varieties of these countries. It is intended as a publicly available corpus for comparative linguistics and language resource development, but furthermore constitutes one of the pillars of the Vocabulário Ortográfico Comum da Língua Portuguesa (VOC), the official spelling dictionary for Portuguese. The headword list in VOC is partly derived from lexicographic tradition, which is to date based almost exclusively on the European and Brazilian varieties, and partly made up of words retrieved from the CPLP corpus, many of them included for the first time in official language resources for Portuguese. This double inclusion route aims at presenting an integral (i.e., non-contrastive) and increasingly balanced perspective on all the varieties. This paper describes the general design of the corpus, the challenges faced in its development, as well as the way it was used in the compilation of VOC.
Overview: Microbial amendment of remediated soils for effective recycling

In recent years, various methods are being considered with appropriate amendments, not with conventional reclamation to recycle deteriorated soils after remediation as agricultural addition, backfilling and construction materials etc. Among these amendments, microbial amendments with effective microorganism(EMs) are known to improve soil qualities such as fertility, strength and toxicity to be recycled into possible utilizations. This study indicates the possibility of recycling the remediated soils by using these EMs most efficiently. Soil samples will be collected from contaminated sites with either heavy metals or petroleum and will be remediated by bench-scale soil washing and thermal desorption. And then the remediated soils will be treated with easily obtainable inocula, substrates (culture media) near our life and they are compared with commercial EM products in terms of the cost and efficiency. Also, after treating with a number of mixing ratios, soil properties of (1) fresh, (2) contaminated, (3) remediated (4) amended soils will be evaluated based on soil quality indicators depending on demands and the optimal mixing ratios which are effective than commercial EM products will be determined. The ratio derived from pre-tests could be applied on the remediated soils with pilot-scale in order to assess suitability for recycling and characterize correlation between soil properties and microbial amendments regarding contaminants and remediation, and furthermore for modelling. In conclusion, application of the established models on recycling remediated soils may help to dispose the remediated soils in future, including environmental and ecological values as well as economical values.
Increase in Fish Production Through Bottom-Up Trophic Linkage in Coastal Waters Induced by Nutrients Supplied via Submarine Groundwater

Submarine groundwater is richer in nutrients compared to surface (river) water and therefore has been considered to be an essential component of biological production in marine coastal ecosystems. However, there has been no information on the effects of submarine groundwater on animals at high-order trophic levels. Here we show the first direct evidence that fish feeding and growth are elevated by submarine groundwater discharge (SGD) by on-site experiments and quantitative sampling. An experiment using cages moored on the sea bottom confirmed that the fishes obtained elevated levels of nutrition in the vicinity of SGD. Quantitative sampling at three sites with different hydrodynamic properties showed correspondence of high SGD with high biological production or biomass from producer to secondary consumers. These findings demonstrate nutrients of terrestrial origin provided via submarine groundwater in coastal areas promote marine fish production.