Miracle-dz/UniFAR-FTUs huggingface dataset:
Complex bursting dynamics of a Mathieu-van der Pol-Duffing energy harvester

The purpose of this paper aims to explore the mechanism of several different periodic bursting patterns based on a Mathieu-van der Pol-Duffing energy harvester with parameter excitation. These bursting patterns are categorized as ‘delayed supHopf/supHopf’ bursting, ‘delayed pitchfork/pitchfork’ bursting, ‘delayed Hopf-pitchfork/Hopf-pitchfork’ bursting, ‘delayed subHopf/supHopf’ bursting and ‘delayed subHopf/fold-cycle’ bursting, respectively. Since bursting oscillations can be created when the trajectory transfers between/among different attractors, which means the amplitude of bursting oscillations may be sufficient to overcome the potential barrier of the energy harvester, and thus it would have potential application value in energy harvesting.
Molecular dynamics simulation of the microscopic interaction in Cu/water nanofluid

With the gradual increase in internal combustion engine load, the heat in the cooling oil cavity has been insufficient to remove too much heat in a timely manner. The excellent thermal conductivity of nanofluids can be used to consider solving such problems. In this paper, the molecular dynamics simulation of the microscopic effect of the particles in the Cu/water nanofluid on the base fluid is carried out by the equilibrium molecular dynamics method. By analyzing the density distribution of various atoms in the nanofluid and the radial distribution function between the base fluid atoms, Cu-H and Cu-O atom pairs, it is found that the main reason for the influence of the nanoparticles on the base fluid is in the area near the Cu particles. The base fluid atoms have an effect, which changes the arrangement of these atoms, and the O atoms around the nanoparticles are closer to the surface of the Cu particles, and the H atoms are slightly away from the surface of the particles.
Pulmonary toxicities of molecular targeted antineoplastic agents: a single-center 10-year experience

Background/Aims A better understanding of cancer cell biology has led to the discovery and development of several new targeted agents for cancer. These drugs are widely used in cancer treatment and have good toxicity profiles. However, some patients are extremely sensitive to these drugs and can develop severe toxicities. Among the toxicities, pulmonary complications are infrequent with most targeted therapies. This study aimed to identify the radiologic pulmonary complications in various targeted therapies and to analyze the characteristics of patients with pulmonary toxicity. Methods We retrospectively reviewed the medical records and chest image findings of 644 patients who were treated with targeted antineoplastic agents at Soonchunhyang University Hospital between May 2005 and September 2014. Results Of these 644 patients, 90 (14.0%) developed pulmonary complications as noted on chest computed tomography. Among these patients, 15 (2.3%) developed drug-related pulmonary toxicities. Treatment with targeted agents was discontinued in all patients, while 11 patients were simultaneously treated with glucocorticoids. Three patients died of drug-related pulmonary toxicity. Conclusions During targeted therapy, clinicians should assess for pulmonary toxicities and symptoms that occur with dyspnea. If drug-induced pulmonary toxicities are suspected, imaging studies should be performed immediately, and the possibility of variable radiological patterns should be considered. Discontinuing the use of implicated causative agents and treatment with glucocorticoids resulted in an improvement in both symptoms and imaging findings, but some patients still experienced fatal pulmonary toxicities.
Steady-state heat and matter exchange at a phase interface

Equations are derived for the steady-state heat and matter fluxes through the boundary layer at a general phase interface; their range of validity is discussed, and the importance of the timescale of the observations is emphasized. Where only diffusive matter fluxes and conductive heat fluxes are involved, the results derived from irreversible thermodynamics remain valid for large departures from equilibrium. The theory includes the case where the location of the boundary layer is marked by an obstruction such as a membrane: the properties of the obstruction control the magnitudes of the fluxes but do not affect the thermodynamic forces. The theory is applied to transport processes at a plane liquid surface and at the surface of an aerosol droplet.
The Effect of Gender on the Commercialisation of Goat Production in the Semi-arid Area of Msinga, South Africa

Factors affecting households’ choices to participate in markets are often not disaggregated by gender, leading to policies that are insensitive to women’s needs. Using qualitative and quantitative methods, the study analysed challenges faced by male and female-headed households in goat commercialisation in the semi-arid Msinga area of South Africa. The main constraints were poor condition of goats and mortality, high illiteracy rates of women, shortage of transport to take goats to the market and limited access to information. The study recommends that women be provided with greater market access and information and for the government to avail more attractive investment opportunities to reduce the use of goats as a store of wealth.
The effects of water absorption on an ester vinyl resin system

Derakene is a vinyl ester resin largely employed as matrix for polymeric based composite systems. In this work, the performance of such polymeric system was evaluated considering the effect of hygrothermal aging. The mechanical and thermal properties were examined for the processed material before and after ageing in water at 60 oC for a maximum period of 64 days. Both analyses indicated the occurrence of post cure of the system after 16 days due to exposition at 60 oC in water, which was also confirmed by analyses in samples with post cure treatment. Moreover, it was observed plasticizing of resin after 36 and 64 days of ageing. Micro structural and fracture surface analyses were carried out in order to characterize the samples. The appearance of surface voids was also observed.
Deixis Analysis in the Song Lyrics “Someone Like You” by Adele

This study is to find out the used of three types deixis on the song lyrics “Someone Like You” by Adele. The writer used qualitative method. The researcher used document analysis as the instrument in this study. For analysis the data, the writer used three steps, there are data reduction, data display, and data verification. The results of this study showed that two types of deixis (Levinson, 1983) namely: personal deixis and temporal deixis appeared in the song “Someone Like You” by Adele. From the findings, the writer found twenty eight personal deixis and two temporal deixis. The results in this study concluded that deixis analysis on this song, the most data obtained is personal deixis which consists 28 words compared to temporal deixis which consists two words. Keywords : linguistics, pragmatics, deixis.
‘Deep Learning’ in Studies of Religion and Worldviews in Norwegian Schools? The Implications of the National Curriculum Renewal in 2020

From 2020, the National Curriculum in Norway has been totally renewed for primary, secondary, and upper secondary education. This includes the introduction of such new concepts as ‘deep learning’ and ‘core elements’ in school education. In this article, we unpack the significance of the reform for studies in religion and worldviews in Norwegian schools. We explore continuities and changes by looking at general educational trends and debates and how they become significant, specifically for the study of religion and worldviews in schools. While the changes may stem from international trends, they have been formed in a Norwegian discourse that also draws on traditions from previous curricula. Three interdisciplinary topics have been introduced: ‘health and life skills’, ‘democracy and citizenship’, and ‘sustainable development’. Emphasis is placed on competence-oriented relevance and less on the traditional classroom learning of ‘facts’. Our research question is: Which continuities and which changes are found when comparing studies of religion and worldviews in the previous and the new curricula? Our hypothesis is that continuities stem from national traditions while incentives to change are connected to rapid social change that is also reflected in supranational developments in education. Our methodology is a contextual presentation and discussion of studies of religion and worldviews, where the context we are considering includes both national and international discourses. Our objective is to inform a broader audience about recent developments in the Norwegian school, as well as to bring together important elements in this reform in a focused discussion on the framework for studies of religion and worldviews in Norwegian schools today. We identify both continuity and change, along a subject-specific—general-educational policy axis and along a national-international axis. The continued relevance of teaching about religion and worldviews in schools is strengthened in the reform, because of the potential for significant contributions to general aims of education now reflected in ‘core elements’, including for continued development of a functioning democracy.
Simulation Analysis of Mechanical Performance of the Broadband Coaxial Step Attenuator

In this paper, the structure and performance of broadband coaxial step attenuator are studied by simulation. Through the finite element static structure simulation, the stress and strain of the internal structure of the step attenuator are analyzed. The contact pressure, contact state and contact stability between the reed and the attenuation unit are analyzed. The theoretical analysis and calculation of the fatigue life with the nominal stress method are carried out. At the same time, the structure of the reed is optimized and improved for better performance. Then the dynamic mechanical properties of the structure are analyzed. The finite element simulation results show that the maximum stress is 395.53MPa. Due to the high stress in the contact area between the reed and the ejector rod, there will be micro cracks at these stress concentration positions under the constant impact of the ejector rod on the reed. The micro cracks gradually grow up and finally form the macro cracks, which lead to the reed fracture.
A 9.6-mW/Ch 10-MHz Wide-Bandwidth Electrical Impedance Tomography IC With Accurate Phase Compensation for Early Breast Cancer Detection

An eight-channel 10-MHz wide-bandwidth electrical impedance tomography (EIT) IC is proposed for early breast cancer detection system. To increase the resolution of EIT images, the proposed IC has three key features: 1) wide-bandwidth instrumentation amplifier (WB-IA) to detect large impedance changes in cancer cells at a high frequency; 2) dual-mode driver (DM-driver) to obviate the complex switching network to reduce the noise and the system form factor; and 3) phase compensation loop (PCL) to efficiently correct the phase error for accurate images without artifacts. The proposed EIT IC occupies 16 mm2 in the 65-nm CMOS technology and consumes 9.6 mW for each channel. Thanks to the key features, the proposed breast cancer detection system with the dedicated EIT IC can operate up to 10 MHz with a small phase error of 4.32° and a state-of-the-art impedance resolution of 1.6 $\text{m}\Omega /\surd $ Hz eventually can detect a small-size target object of 0.5 cm and verify with the phantom experiments.
Effect of Ambient Nitrogen on the Growth of Phytoplankton in the Bohai Sea: Kinetics and Parameters

Changes in nitrogen forms and levels affect biogeochemical processes, but little is known about the quantitative effect of ambient nitrogen on phytoplankton growth in biogeochemical kinetics. Based on a new experimental data analysis method, we investigated the phytoplankton growth and nitrogen uptake processes of typical phytoplankton subjected to different nitrogen forms in the Bohai Sea. We employed a nonlinear differential model to fit the kinetic processes of phytoplankton growth, death, and nutrient uptake considering multiple equations and parameters. The maximum nitrogen uptake rate (kup), half‐saturation coefficient (ks), and maximum phytoplankton growth rate (kG) were obtained based on the multivariate nonlinear differential mothed. The kup and ks were related with kG for different ambient nitrogen forms (urea, ammonium, and nitrate) in the N sufficiency experiment group I (SGI) treatment, showing that phytoplankton grew faster in the presence of ammonium and nitrate than in the presence of urea, owing to quicker nitrogen uptake rate. The kup, ks, and kG in the N‐Starvation experiment group II (SGII) treatment were lower than that in the SGI treatment, indicating higher nutrient affinity of phytoplankton at lower nitrogen concentrations. Hence, we can infer that eutrophic algae such as Nitzschia closterium may easily become the dominant species in the SGI treatment with abundant nitrogen supply and high kG, kup, and ks. In contrast, oligotrophic algae such as Leptocylindrus danicus and Asterionellopsis glacialis may easily become the dominant species in the SGI or SGII treatments with an insufficient supply of ambient nitrogen and low kG, kup, and ks.
Rapid Production of Metal–Organic Frameworks Based Separators in Industrial‐Level Efficiency

Metal–organic framework (MOF) based mixed matrix membranes (MMMs) have received significant attention in applications such as gas separation, sensing, and energy storage. However, the mass production of MOF‐based MMMs with retained porosity remains a longstanding challenge. Herein, an in situ heat‐assisted solvent‐evaporation method is described to facilely produce MOF‐based MMMs. This method can be extended into various MOFs and polymers with minimum reaction time of 5 min. Thus‐obtained MMMs with high uniformity, excellent robustness, well‐tuned loading, and thickness can be massively produced in industrial‐level efficiency (≈4 m in a batch experiment). Furthermore, they can be readily applied as powerful separators for Li–S cell with high specific capacity (1163.7 mAh g−1) and a capacity retention of 500.7 mAh g−1 after 700 cycles at 0.5 C (0.08% fading per cycle). This work may overcome the longstanding challenge of processing MOFs into MMMs and largely facilitate the industrialization process of MOFs.
Immobilization of Cobalt by Sulfate-Reducing Bacteria in Subsurface Sediments

We investigated the impact of sulfate-reduction on immobilization of metals in subsurface aquifers. Co 2+ was used as a model for heavy metals. Factors limiting sulfate-reduction dependent Co 2+ immobilization were tested on pure cultures of sulfate-reducing bacteria, and in sediment columns from a landfill leachate contaminated aquifer. In the presence of 1 mM Co 2+ , the growth of pure cultures of sulfate-reducing bacteria was not impacted. Cultures of Desulfovibrio desulfuricans, Desulfotomaculum gibsoniae , and Desulfomicrobium hypogeia removed greater than 99.99% of the soluble Co 2+ when CoCl 2 was used with no chelators. The above cultures and Desulfoarcula baarsi removed 98-99.94% of the soluble Co(II) when the metal was complexed with the model ligand nitrilotriacetate (Co-NTA). Factors controlling the rate of sulfate-reduction based Co 2+ precipitation were investigated in sediment-cobalt mixtures. Several electron donors were tested and all but toluene accelerated soluble Co 2+ loss. Ethanol and formate showed the greatest stimulation. All complex nitrogen sources tested slowed and decreased the extent of Co 2+ removal from solution relative to formate-amended sediment incubations. A range of pH values were tested (6.35-7.81), with the more alkaline incubations exhibiting the largest precipitation of Co 2+ . The immobilization of Co 2+ in sediments was also investigated with cores to monitor the flow of Co 2+ through undisturbed sediments. An increase in the amount of Co 2+ immobilized as CoS was observed as sulfate reduction activity was stimulated in flow through columns. Both pure culture and sediment incubation data indicate that stimulation of sulfate reduction is a viable strategy in the immobilization of contaminating metals in subsurface systems.
Products Formed during the Interaction of Seawater Droplets with Zinc Surfaces II. Results from Short Exposures

This paper reports on a study in which fine seawater droplets were placed on zinc surfaces for periods of 15 min to 6 h. After each exposure, droplets were either extracted from the specimens or allowed to evaporate in laboratory conditions. Scanning electron microscopy (SEM)-energy-dispersive spectroscopy, X-ray microdiffraction, and SEM―focused ion beam studies were undertaken on the specimens after exposure, as was in situ Raman spectroscopy on zinc covered with a saline droplet. Approximately 30 min after droplets were placed on the surface, a thin moisture layer (termed the secondary spreading film) spread out from the central droplet. As a function of position and time, oxide development in the central region was initially slow; however, after ∼30 min, a significant local attack of the underlying microstructure occurred. Correspondingly, precipitate phases developed on top of the oxide, which produced an oxide consisting of three bands: an irregular zone with a localized metal attack and significant voids at the metal/oxide interface, overlaid by a relatively void-free layer, which in turn was overlaid by a porous zone. At the edge of the drop (before the secondary spreading), oxide growth was much faster, and the deposition of phases that precipitate in solutions appeared critical. We discuss the chemistry and identification of the various phases and the implications of oxide formation to the electrochemical processes occurring in drops.
Lending cyclicality in dual banking system: empirical evidence from GCC countries

Purpose The purpose of this paper is to check if there is a procyclical lending behaviour in dual banking systems of the Golf Cooperation Council (GCC) countries. The study also tries to control for the role of Islamic banks in amplifying or mitigating the procyclicality of dual banking systems. Design/methodology/approach Estimation of a dynamic panel model using annual observations on a sample of 81 banks based in the GCC countries between 2005 and 2018. The study uses two business cycle indicators as dependent variables, namely, output gap and oil price gap. Findings The system generalilzed method of moments (GMM) estimator and robustness checks confirm the procyclical lending pattern of dual banking systems in the GCC. Estimation outputs also indicate that this procyclicality is more pronounced during economic slowdowns. However, it is found that Islamic banks’ lending is less procyclical, giving support for the stability view of Islamic banking systems. The authors think that the implementation and conduct of macroprudential policies are very challenging for banking authorities when Islamic banks and conventional banks operate under the same regulatory framework. Research limitations/implications The research paper may suffer from some limitations. Indeed, exploring panel data instead of country-case data may lead to a problem of heterogeneity that may underpin the credibility of the econometrical estimations. To deal with this problem by introducing a set of bank-specific and time-specific dummies. Furthermore, small N samples (N = number of individuals) may affect the reliability of the tests for the validity of instruments and autocorrelation used under the GMM estimator, leading to inefficient results. Consequently, the number of selected banks is extended as much as possible (81 banks), becoming important comparing to the time dimension of the panel. Practical implications Policymakers and regulators are incited to embed the perspectives of Islamic finance regarding lending cyclicality in dual banking systems, which promote the efficiency of resource allocation to the financing of assets and by consequence enabling financial stability. The stability view of the Islamic banking system could prompt policymakers and regulators to encourage the implementation and development of Islamic banks. Originality/value The present paper tries to overcome the lack of empirical studies on the procyclicality of dual banking. The study contributes to this novel literature in two ways. First, it focuses exclusively on GCC banking systems. In fact, compared to other emerging markets, business cycles characterizing GCC are specific because of the role played by the oil and gas revenues in the economic growth and financial system is crucial. Second, this paper brings into evidence the procyclicality of GCC banking systems also when the oil price is taken as a business cycle indicator.
Wharton Research Data Services (WRDS)

Standard & Poor's Compustat North America is a database of financial, statistical, and marketing information. It provides more than 300 annual and 100 quarterly Income Statement, Balance Sheet, Statement of Cash Flows, and supplemental data items on more than 24,000 publicly held companies. Compustat files are available in both annual and quarterly formats. The industrial annual formats offer both historical and restated data. The industrial quarterly formats offer restated data as reported by the company. The restated data allows analysts to compare current and prior years' results on a comparable basis and determine financial trends and growth rates. For most companies, annual and quarterly data is available for a maximum of 20 years and 48 quarters. Standard & Poor's ExecuComp is a unique database for executive compensation analyses. The ExecuComp report library accesses more than 100 up-to-date compensation and financial items for over 2,500 companies (over 24,000 executives). The Center for Research in Security Prices (CRSP) maintains the most comprehensive collection of standard and derived security data available for the NYSE, AMEX and Nasdaq Stock Market. CRSP is a research center at the University of Chicago Graduate School of Business, and maintains historical data spanning from December 1925 to the present. CRSP's trademark of unique issue identifiers tracks a continuous history of securities, providing a seamless time-series examination of the issue's history. CRSP's unparalleled accuracy and dedication to excellence has made CRSP data a staple of academic and commercial research and data analysis throughout the world. The CRSP US Government Bond File is available in two frequencies: daily and monthly. The daily product contains data for about 3,100 marketable US Government securities traded in the secondary market and during the issued trading period from June 14, 1961 to the present. The monthly product contains data for I/B/E/S International Inc. provides timely analyst information on over 18,000 companies in more than 60 countries – more than any other source. In addition, I/B/E/S provides a collection of firms' forecast measures for accounting information. Data terms, such as earnings estimate per share, revenue, net income, and pre-tax profit, are included in forecast measures. The I/B/E/S database is useful for researchers who are interested in analyst forecast information, such as researchers documenting market effects of missing earnings expectations. Eventus performs event studies using data read directly from CRSP stock databases or pre-extracted from any source. The Eventus system includes utility programs to convert calendar …