Miracle-dz/UniFAR-FTUs huggingface dataset:
Characterization of multilayered structures by swept-frequency eddy current testing

The signals of the electromagnetic non-destructive testing of a multilayered structure are functions of the dimension and the electromagnetic properties of each layer in this structure. The signals of the to-be-characterized layer should be ‘extracted’ from the composite signals. This paper proposes of separating signals of different layers by frequency band, and characterizing the layer of interest by using the correspondent signals. An analytical solution derived in terms of transmission and reflection of electromagnetic waves was used to conduct simulation of swept-frequency eddy current testing of a multilayered structure. A couple of characteristic parameters were extracted from the analysis of the signals and the differences of the signal series in the frequency series. It was found that the thicknesses of the top and lower layers can be determined respectively by using high frequency and low frequency signals. The differences of the signal series in the frequency series are insensitive to the variation of air gap between two conductive layers. The maximum difference of resistance in the frequency series can be used to characterize the lower layer regardless the change of conductivity and air gap.The signals of the electromagnetic non-destructive testing of a multilayered structure are functions of the dimension and the electromagnetic properties of each layer in this structure. The signals of the to-be-characterized layer should be ‘extracted’ from the composite signals. This paper proposes of separating signals of different layers by frequency band, and characterizing the layer of interest by using the correspondent signals. An analytical solution derived in terms of transmission and reflection of electromagnetic waves was used to conduct simulation of swept-frequency eddy current testing of a multilayered structure. A couple of characteristic parameters were extracted from the analysis of the signals and the differences of the signal series in the frequency series. It was found that the thicknesses of the top and lower layers can be determined respectively by using high frequency and low frequency signals. The differences of the signal series in the frequency series are insensitive to the varia.
Prioritizing Web Usability

In 2000, Jakob Nielsen, the world's leading expert on Web usability, published a book that changed how people think about the Web-Designing Web Usability (New Riders). Many applauded. A few jeered. But everyone listened. The best-selling usability guru is back and has revisited his classic guide, joined forces with Web usability consultant Hoa Loranger, and created an updated companion book that covers the essential changes to the Web and usability today. Prioritizing Web Usability is the guide for anyone who wants to take their Web site(s) to next level and make usability a priority! Through the authors' wisdom, experience, and hundreds of real-world user tests and contemporary Web site critiques, you'll learn about site design, user experience and usability testing, navigation and search capabilities, old guidelines and prioritizing usability issues, page design and layout, content design, and more!
Assessment of the Acute Toxicity of Oil Dispersant Type 3 (4-amino-1, 2-dithiolane-4-carboxalic acid) on Abudefduf vaigiensis Under Laboratory Conditions

This study was designed to determine the acute toxicity of type 3 oil dispersant (4− amino−1,2−dithiolane−4−carboxalic acid) on shallow coastal marine fish, Abudefduf vaigiensis under laboratory conditions. Two separated experimental tank series were used providing aeration to one series and other without aeration. Four replicates of each concentration value of the oil dispersant were used including one control tank for each concentration series. Eight fish of same size range of (4.2cm to 5.4cm) were put into each tank and several prior exposed tests were carried out to determine the chemical concentration range of acute toxicity on the selected fish. There was no significant difference of temperature, pH, NH3 and salinity in both setups. Dissolve oxygen (DO) concentration decreased during 10 hours of the experiment and after that DO was constant in the aerated tank series. Several behavioral changes (slime secretion, color change, increase of operculum movement rate and surface breathing) were observed in both setups. Zig-zag swimming behavior of fish was observed in the un aerated setup. Mortality of the first fish was observed after 6 hours in the aerated tanks. Since, DO is one of the factors for fish mortality, after 9 hours of the experiment fish mortality was observed in the aerated tanks. According to the results from Probit analysis program, Version 1.5, LC50 values varied from 31.37-33.715 ppm in aerated tanks and these values changed between 70.702 and 71.825 ppm in not aerated tanks. Therefore, the range (70.70271.825 ppm) of the type 3 oil dispersant could be considered as the acute toxicity level for Abudefduf vaigiensis for the natural environmental conditions.
Augmented Reality in Surveillance Systems

The aim with this thesis is to investigate the possibilities to use Augmented Reality (AR) in surveillance systems. The thesis will examine ideas suited for network based cameras but also other devices such as a head mounted display (HMD). AR today is mainly used in smartphones as entertainment and therefore the approach to use AR in surveillance systems will cover new areas. The project will be divided into several steps including investigation, design, tool-evaluation and implementation. Investigation includes numerous brainstorming sessions and research along with storyboards and scenarios. The investigation will lead to a product to be designed and implemented in a selected platform. To design the application, a Lo-Fi and Hi-Fi prototype is created. As a result, a final application was implemented on the platform Android which uses Google Maps as an overview of the camera system. All the cameras are viewed in different manners and in the image, the enhanced AR information is applied to increase the information output and orientation. Axis Communications network cameras where used in the application.
Control of underactuated mechanical systems via passivity-based and geometric techniques

Control of mechanical systems is currently among one of the most active fields of research, due to the diverse applications of mechanical systems in real life. The last decades have shown an increasing interest in the control of underactuated mechanical systems. These systems are characterized by the fact of possessing more degrees of freedom than actuators, i.e., one or more degrees of freedom are unactuated. This class of mechanical systems are abundant in real life; examples of such systems include surface vessels, spacecraft, underwater vehicles, helicopters, road vehicles, mobile robots, space robots and underactuated manipulators. The thesis focuses on different generalizations of some of the existing results on the control of this class of systems, given in the existing work of A. Tornamb, R. Ortega and J. W. Grizzle, who I collaborated with during the last three years. They have been attained by using techniques borrowed from two different approaches: the passivity-based and the geometric ones. Three classes of problems are dealt with, namely: 1. Input-output decoupling for linear underactuated mechanical systems; 2. asymptotic stabilization of arbitrary equilibria in nonlinear mechanical systems with underactuation degree one 3. exponential stabilization of periodic orbits in nonlinear underactuated mechanical systems with impulse effects, with applications to biped robot locomotion
Romanian Housing Market before and during the COVID-19 Pandemic

This research aims to study the sustainability of the development of the housing market before and during the Covid-19 pandemic in Romania. In this regard, the evolution of house prices in relation to their market fundamentals was analyzed, and the price-toincome and price-to-rent ratios and the Hodrick-Prescott filter were calculated. The estimated indicators show that since 2016, the residential property market has entered a new phase of expansion of the real estate cycle, but most likely the turning point will be determined by the intensity of the Covid-19 outbreak. Until the moment of the analysis, the data indicate that the pandemic outbreak did have a mildly negative effect on the housing market in Romania, by decreasing households’ intention to purchase a home, the number of new home listings and real estate transactions, mainly in the first weeks of the pandemic. The housing prices remained relatively constant during the state of emergency, but after the gradual relaxation, they began to decline slightly in major cities. Due to the uncertainty regarding the future, the long-term impact of the Covid-19 outbreak on the residential market is unknown, but it will certainly depend on the intensity of the pandemic and the measures taken by the authorities to support the economy.
AUTOMATIC LOADING TRANSFER CONTROL TECHNOLOGY TO ELIMINATE OVERLOAD

The conventional methods of eliminating the overload are generally based on algorithms to search for load transfer paths, which are a large amount of calculation and low feasibility. When accidents or device faults occur in power grid, the busbar automatic transfer switch (BATS) is used to backup power supply, and ensure the continuity. This paper makes use of thoughts of BATS to eliminate the overload by transferring it to backup power. Due to the complexity of the power grid structure and operation mode, the paper proposed a new BATS auto-generated algorithm, which can automatically search for BATS models in accordance with operation modes of power system. When there is overload, the corresponding BATS models are automatically found out, and then the feasible plan is generated through control technology automatically. The practical analysis proves that this method is feasible and practical. Keywords: Intelligent busbar automatic transfer switch (BATS), Overload eliminating, Auto-adapted modeling, Transfer control technology
Combined Effects of Protocatechuic Acid and 5-Fluorouracil on p53 Gene Expression and Apoptosis in Gastric Adenocarcinoma Cells.

Objectives This study evaluated the combined effects of protocatechuic acid (PCA) and 5-fluorouracil (5-FU) on gastric adenocarcinoma (AGS) cells. Materials and Methods The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay, colony formation assay, flow cytometry technique, real-time quantitative polymerase chain reaction, and Western blotting were used to investigate cytotoxic effects, colony formation, apoptosis, p53 gene expression, and Bcl-2 protein level in AGS cells treated with 5-FU and PCA. Results Our results demonstrated that PCA (500 μM) alone or in combination with 5-FU (10 μM) inhibited AGS cell proliferation, inhibited a colony formation, and increased apoptosis compared with untreated control cells. Moreover, the combined 5-FU/PCA exposure led to upregulation of p53 and downregulation of Bcl-2 protein when compared to the untreated control cells. Conclusion The results demonstrate that the combined 5-FU/PCA may promote antiproliferative and pro-apoptotic effects with the inhibition of colony formation in AGS cells. The mechanisms by which the combined 5-FU/PCA exposure exerts its effects are associated with upregulation of p53 gene expression and downregulation of Bcl-2 level. Therefore, the combination of 5-FU with PCA not only could be a promising approach to potentially reduce the dose requirements of 5-FU but also could promote apoptosis via p53 and Bcl-2 signaling pathways.
The Art of the Strategist: 10 Essential Principles for Leading Your Company to Victory

"The Art of the Strategist" shows clearly how superior strategy trumps other factors in almost every competitive arena. Renowned strategy expert William A. Cohen, whose considerable experience in the military, corporate, and academic sectors forms the basis for "The Art of the Strategist", presents the timeless lessons of: Commitment to objectives; Seizing and maintaining initiative; Economization and massing of resources; Surprise; The indirect approach; Simplicity; Multiple alternatives; Security; and Exploitation of success.
Factors associated with detection of human immunodeficiency virus in tears: a cross-sectional study

Background Human immunodeficiency virus (HIV) continues to be a global public issue and identifying viral reservoirs is needed in order to better understand the transmission of the disease. We aimed to identify the level of HIV viral load in tears of people living with HIV (PLWH) and study factors influencing their tear viral load.Methods This was a cross-sectional study of patients infected with HIV or acquired immune deficiency syndrome (AIDS) at Beijing You’an Hospital, Beijing, China between May 2018 and July 2018. Socio-demographic information and laboratory test results were collected, including tear samples. Data were analyzed using independent sample t-test, Mann-Whitney U test, Wilcoxon test, Chi-square test, and Spearman correlation analysis.Results 67 subjects met inclusion criteria and were enrolled in the study, of which, 23.9% had detectable HIV ribo nucleic acid (RNA) in their tears. 53.3% of treatment naïve patients and 0.0% of patients who were on anti-retroviral therapy (ART) had detectable HIV RNA in their tears. Tear viral load was lower in tears than in blood plasma and was significantly correlated with plasma viral load (Rho=0.566, p<0.001), but negatively correlated with CD4+T cell count, CD4+/CD8+T cell count, and duration of HIV infection (Rho=-0.450, Rho=-0.464, Rho=-0.565,Rho=-0.252; p<0.001). Conclusions HIV-1 RNA is present in tears, but at a lower detection rate and viral load than in blood plasma. This study provides a potential new avenue for the early diagnosis and linkage to care for patients infected with HIV.
Business Intelligence Systems - The positive and negative aspects of implementing and using Business Intelligence in an organization

Business Intelligence (BI) systems are becoming a common standard among organizations. Because of this, it is important to consider both the positive and the negative aspects regarding the phenomenon. Furthermore it is vital to analyze how companies utilize their BI systems and how it affects them. With this paper we strive to attain a deeper understanding of the practical implications of a BI system. In order to achieve this goal we developed our literature review where we found five key aspects of BI systems; Strategy, Economy, Reliable data and consolidation, Scalability and Flexibility and Security. Furthermore, we based the interview guide on those five aspects we previously identified and conducted four interviews with four different companies. Afterwards we compared the reviewed theory with the empirical results from our interviews to investigate similarities and differences. It showed that all of the companies were familiar with these five aspects and all of the companies argued that thanks to the BI system, they could consolidate all of their data and instead of using different systems to access data, they could easily connect to the BI system to instantly retrieve all useful information. Furthermore all companies emphasized that the BI system secured the reliability of the company data. Essentially, all of the companies stated that they were very satisfied with having a BI system within the organization. Despite the fact that it was to some extent economically demanding to implement the BI system, it was worth it in the long run.
Omega-3 fatty acids in the treatment of acute lung injury: a systematic review and meta-analysis

Background Several randomized controlled trials (RCTs) have compared the treatment of acute lung injury (ALI) with or without omega-3 fatty acids, yet the results remained inconsistent. Therefore, we attempted this meta-analysis to analyze the role of T Omega-3 fatty acids in the treatment of ALI patients.Methods We searched PubMed et al databases from inception date to Oct 31, 2019 for RCTs that compared the treatment of ALI with or without omega-3 fatty acids. Two authors independently screened the studies and extracted data from the published articles. Summary mean differences (MD) with 95% confidence intervals (CI) were calculated for each outcome by means of fixed- or random-effects model.Results Six RCTs with a total of 277 patients were identified, with 142 with omega-3 fatty acids treatment and 135 without omega-3 fatty acids treatment. Omega-3 fatty acids treatments significantly improve the PaO2 (MD =13.82, 95%CI 8.55– 19.09), PaO2/FiO2 (MD =33.47, 95% CI 24.22– 42.72), total protein (MD =2.02, 95% CI 0.43– 3.62) in ALI patients; furthermore, Omega-3 fatty acids treatments reduced the duration of mechanical ventilation (MD =-1.72, 95% CI -2.84– -0.60) and intensive care unit stay (MD =-1.29, 95% CI -2.14– -0.43) in ALI patients.Conclusions Omega-3 fatty acids can effectively improve the respiratory function and promote the recovery of ALI patients. More studies focused on the long-term efficacy and safety of omega-3 fatty acids use for ALI are needed.
Rilievo automatico dei passeggeri e del carico dei veicoli / "Automatic passenger counting and vehicle load monitoring"

This article describes and compares the new technologies for the automatic counting of the passengers on both railway and road vehicles, highlighting their advantages and issues, with general indications on their respective levels of outlay. It also deals with the monitoring systems for weigh in motion, indirect measurement of the transported passengers and some proposals based upon solutions and/or applications which are not reported to have been tested so far. It also highlights some procedures aimed at improving the quality of data and ascertaining their accuracy, besides indicating methods for the analysis of collected data in order to estimate the flow of passengers in a given area
Hepatocyte‐Specific β‐catenin Deletion During Severe Liver Injury Provokes Cholangiocytes to Differentiate into Hepatocytes

Treatments for chronic liver disease are limited due to incomplete understanding of hepatobiliary repair mechanisms. Typically, hepatocytes proliferate to mediate liver regeneration. However, if hepatic injury occurs concomitantly with impairment of hepatocyte proliferation, biliary epithelial cells (BECs) are activated to mediate regeneration by differentiating into hepatocytes. The choline‐deficient ethionine‐supplemented (CDE) diet model of liver injury is known to induce proliferation of BECs, but does not block hepatocyte proliferation. β‐catenin signaling plays an important role in liver regeneration by promoting hepatocyte proliferation. Therefore, we hypothesized that β‐catenin loss in hepatocytes would impair hepatocyte proliferation and lead to BEC‐mediated hepatic repair in the CDE diet model. Indeed, mice with deletion of β‐catenin in both BECs and hepatocytes (KO1 mice) displayed severe liver injury with impairment of hepatocyte proliferation after two weeks of CDE diet. Additionally, we performed genetic fate tracing in mice by utilizing adeno‐associated virus serotype 8 carrying thyroid binding globulin‐driven Cre (AAV8‐TBG‐Cre) to simultaneously delete β‐catenin and permanently label hepatocytes with EYFP (KO2 mice). Importantly, in this model BECs contain β‐catenin and do not express EYFP. After 2 weeks of CDE diet, KO2 mice displayed increased liver injury, ductular reaction, fibrosis, inflammation, and a lack of hepatocyte proliferation. Finally, in KO2 mice allowed 2 weeks of recovery on normal diet after CDE diet we detected clusters of hepatocytes which expressed β‐catenin and did not express EYFP, indicating biliary origin. We did not observe expansion of EYFP‐negative hepatocytes in control mice with β‐catenin‐positive hepatocytes. To test the long‐term viability of these β‐catenin‐positive hepatocytes, KO2 mice were allowed to recover on normal diet for up to 6 months after CDE diet. Surprisingly, KO2 mice showed sustained fibrosis, inflammation, and a continued ductular reaction even after 3 months of recovery on normal diet, although this fibrosis resolved by 6 months of recovery. The resolution of fibrosis correlated with the expansion of β‐catenin‐positive hepatocytes: after 3 months of recovery hepatic Ctnnb1 expression was approximately 50% of WT2 levels, while by 6 months Ctnnb1 expression was approaching WT2 levels in KO2 mice. These results suggest that endogenous β‐catenin‐negative hepatocytes are less efficient at promoting resolution of fibrosis than β‐catenin‐positive hepatocytes. Overall, our study supports the hypothesis that BEC‐to‐hepatocyte differentiation can give rise to hepatocytes when hepatocyte proliferation is impaired. Lastly, β‐catenin in BEC‐derived hepatocyte infers a more robust cell that contributes to improved hepatic health.
Adaptive On-Line Help for Embedded Instructional Systems

Abstract : The US. Army Corps of Engineers (USACE) has long recognized the benefits of computer-aided design (CAD) systems, and has encouraged its design architect/engineers (A/Es) to use this technology. However, traditional methods of training A/Es to use CAD have had only limited success, so USACE has investigated and developed various innovative, nontraditional methods. One such method, on-line embedded instruction, uses CAD software as the delivery medium for an on-line tutorial program. This report discusses an on-line tutorial program developed for the Corps' standard CAD system, Intergraph MicroStation. An innovative feature of the Corps' tutorial program is its adaptive on-line help function, which includes both procedural and conceptual help material, presented to the user on the basis of his or her degree of CAD experience. The effectiveness of this tutorial was investigated in a USACE Technology Transfer Test Bed (T3B) demonstration, with particular attention on the adaptive on-line help function. Findings indicate that the adaptive help function was effective for most test participants, but it could probably be modified to better address the needs of certain categories of learners.
5GHz Wideband Channel Model in Apartment Building

This paper reports the empir ical 5GHz wideband channel model in apar tment bui ld ing. The channel measurement system is based on the pseudo-noise (PN) correlat ion method. In measurements , t ransmit ter is f ixed at two different posi t ions in a house while receiver moves from the rooms of the house to those of nearby houses in each transmit ter posi t ion. From measurement resul ts , propagat ion loss and wideband channel character is t ics are analyzed. As a resul t , we found that the s ignal ref lected to neighbor ing bui ld ings proffered other c lusters . Especial ly, in cases of the receiver posi t ions where with a b ig window and large away from the transmit ter, th is phenomenon is emphasized. And transmit ter located at the b iased posi t ion, could cause the imbalance of received s ignal level in a s ingle house and the in terference to neighbor ing houses .