Miracle-dz/UniFAR-FTUs huggingface dataset:
SILEX program status: a major milestone is reached

This paper presents the qualification history of the Silex flight hardware. The two flight model terminals, the GEO to be flown on ARTEMIS, the LEO to be flown on SPOT 4, have been or are about to be delivered for integration with their host spacecraft. Both terminals have undergone a stringent environmental test program, including optical performance measurements in vacuum, requiring complex test equipment. The flight hardware qualification was supported by development models that demonstrated the structural and thermal integrity of the design, the opto-mechanical stability of all optical paths within the terminals and the communication performances of the optical and electronic equipment. Due to the agreed SPOT 4 and ARTEMIS launch dates SILEX will not be in orbit before 1998 and 2000 respectively, such that the in orbit demonstration of the overall system can, most likely, not start before mid 2000, requiring the storage of the GEO terminal after the completion of the spacecraft testing. In the mean time, the construction of the optical ground station in Tenerife is well advanced. The building with the 1m telescope was handed over to ESA in Summer 1996, the optical bench will be ready in early 1997 and the whole station will be operational by mid 1997. It will first be used for in orbit debris observation. The preparation of the experiment between ARTEMIS and the Japanese spacecraft OICETS is proceeding well. A detailed link simulation has demonstrated the feasibility of the undertakings, the in orbit test plan is agreed, the ground interfaces are defined. This experiment will allow to control a LEO spacecraft via a data relay satellite through a S-band link with the simultaneous bi- directional optical link allowing data transmission at a rate of 50 Megabit per second in the return direction and 2 Mpbs in the forward direction.
MAC HACKING: THE WAY TO BETTER TESTING?

Anti-malware testing on the Windows platform remains highly controversial, even after almost two decades of regular and frequent testing using millions of malware samples. Macs have fewer threats and fewer prior tests on which to base their methodology, so establishing sound mainstream testing is even trickier. But as both Macs and Mac malware increase in prevalence, the importance of testing software intended to supplement the internal security of OS X increases too. What features and scenarios make Mac testing so much trickier? We look at the ways in which Apple’s intensive work on enhancing OS X security internally, with internal detection of known malware, has actually driven testers back towards the style of static testing from which Windows testing has moved on. And in what ways might testing a Mac be easier? What can a tester do to make testing more similar to real-world scenarios, and are there things that should reasonably be done that would make a test less realistic yet more fair and accurate? This paper examines the testing scenarios that are unique to Macs and OS X, and offers some possibilities for ways to create a test that is both relevant and fair. 1. The testers dilemma: static testing in a dynamic threatscape.
Efficient oxygen evolution reaction on RuO2 nanoparticles decorated onion-like carbon (OLC)

Oxygen evolution reaction (OER) is an important half-cell reaction of the electrical water splitting, for its high overpotential associated with sluggish OER kinetics. Therefore, it is critical to develop highly active and durable electrocatalysts to reduce the overpotential. Herein, ultra-small RuO2 nanoparticles (NPs) supported on onion-like carbon (OLC) and carbon nanotube (CNT) are successfully synthesized by means of wet impregnation combined with annealing treatment, respectively. The microstructure characterization results showed OLC perfect graphitic carbon layer structure, and the RuO2 NPs supported on the OLC possess larger particle size compared with the RuO2 NPs supported on the CNT. Moreover, the electronic structure of Ru in RuO2/OLC was also optimized by the OLC support to be beneficial for the OER. The OER performance of the catalysts were investigated in 1 M KOH solution. The results show RuO2/OLC has a comparable OER activity to the commercial RuO2, but a significantly higher mass activity than the commercial RuO2. When compared with the RuO2/CNT, RuO2/OLC not only exhibits lower overpotential and Tafel slop, but also owns more active sites and higher TOF value, indicating the OLC support improved the OER activity of RuO2/OLC. Moreover, RuO2/OLC showed a superior stability compared with RuO2/CNT, which can be attributed to the excellent electrochemical oxidation-resistance of the OLC.
General stochastic user equilibrium traffic assignment problem with link capacity constraints

This paper addresses a general stochastic user equilibrium (SUE) traffic assignment problem with link capacity constraints. It first proposes a novel linearly constrained minimization model in terms of path flows and then shows that any of its local minimums satisfies the generalized SUE conditions. As the objective function of the proposed model involves path-specific delay functions without explicit mathematical expressions, its Lagrangian dual formulation is analyzed. On the basis of the Lagrangian dual model, a convergent Lagrangian dual method with a predetermined step size sequence is developed. This solution method merely invokes a subroutine at each iteration to perform a conventional SUE traffic assignment excluding link capacity constraints. Finally, two numerical examples are used to illustrate the proposed model and solution method.
Detection of microbial contamination in chicken meat from local markets in Surabaya, East Java, Indonesia

Abstract Background and Aim: Chicken meat can be contaminated by microorganisms anywhere in the supply chain, from farm to market, and these microorganisms can be transmitted to humans through direct contact, contact with the environment, and food consumption. The microbial contamination has a serious impact on public health. This study aimed to analyze the microbial contamination of chicken meat sampled from local markets in Surabaya, East Java, Indonesia. Materials and Methods: A total of 60 samples of fresh chicken meat obtained from 10 traditional markets (six samples per market) were examined for the presence of bacteria. Staphylococcus aureus, Salmonella spp. , and Escherichia coli were identified using Gram staining, culturing, and biochemical tests. The most probable number (MPN) method was used to identify E. coli. Results: Most chicken meat samples were positive for S. aureus (58.3%), Salmonella spp. (48.3%), and E. coli (40%). The samples were considered positive for E. coli if the MPN value was higher than 1×101 CFU/g. Conclusion: High microbial contamination was found in all the chicken meat sampled from local markets in Surabaya. Such contamination can lead to foodborne diseases so, proper hygiene and sanitation standards should be followed from slaughterhouses to the end-users.
On the viscous Cahn–Hilliard–Oono system with chemotaxis and singular potential

We analyze a diffuse interface model that couples a viscous Cahn–Hilliard equation for the phase function φ with a diffusion‐reaction equation for the nutrient concentration σ. The system under consideration also takes into account some important mechanisms like chemotaxis, active transport, and nonlocal interaction of Oono's type. When the spatial dimension is three, we prove the existence and uniqueness of a global weak solution to the model with singular potentials including the physically relevant logarithmic potential. Then we obtain some regularity properties of the weak solution when t > 0. In particular, with the aid of the viscous term ϵ∂tφ, we prove the so‐called instantaneous separation property of the phase variable φ such that it stays away from the pure states ±1 as long as t > 0. Next, we study longtime behavior of the system, by proving the existence of the global attractor in a suitable phase space and characterizing the ω‐limit set. Moreover, we show the existence of an exponential attractor, which implies that the global attractor is of finite fractal dimension.
Development of relationship satisfaction across the life span: A systematic review and meta-analysis.

Previous research has not led to any agreement as to the normative trajectory of relationship satisfaction. In this systematic review and meta-analysis, we summarize the available evidence on development of relationship satisfaction, as a function of age and relationship duration. Data came from 165 independent samples including 165,039 participants. In the analyses, we examined cross-sectional information on mean level, that is, the percent-of-maximum-possible (POMP) score at the first assessment, and longitudinal information on mean change (i.e., change in POMP scores per year). The mean age associated with effect sizes ranged from 20 to 76 years and the mean relationship duration from 3 months to 46 years. Results on mean levels indicated that relationship satisfaction decreased from age 20 to 40, reached a low point at age 40, then increased until age 65, and plateaued in late adulthood. As regards the metric of relationship duration, relationship satisfaction decreased during the first 10 years of the relationship, reached a low point at 10 years, increased until 20 years, and then decreased again. Results on mean change indicated that relationship satisfaction decreased within a given relationship, with the largest declines in young adulthood and in the first years of a relationship. Moderator analyses suggested that presence of children and measure of relationship satisfaction explained variance in the mean level. Except for these two moderators, the pattern of findings held across characteristics such as birth cohort, sample type, country, ethnicity, gender, household shared with partner, marital status, relationship transitions, and dyadic data. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
Alteration in material properties of an intact rock due to drilling and bolting operations

Rock material properties play an important role in assessing rock mass behaviour. Passive rock bolts stabilize a rock mass by restricting relative displacements; however, they may reduce rock material properties. While assessing properties of rock mass reinforced by rock bolts, the alteration caused in rock material properties due to drilling and bolting operation should be well understood. The present work makes an attempt to study the alteration in rock material properties due to drilling and bolting operations. The study has been conducted through physical tests on natural rock specimens in the laboratory. Virgin cylindrical specimens of intact rock were tested under uniaxial compression. Drilling was done through specimens and fully grouted bolts were installed. These specimens were also tested under uniaxial compression. It is observed that the drilling has substantial effect on the uniaxial compressive strength and modulus. A simple problem of tunnel is analysed which demonstrates the effect of alteration in material properties on the strength of rock mass around the tunnel in the field condition.
Characterization of Surface and Aloft Winds for Advanced Parallel Runway Operations

The increase in demand for air travel throughput has resulted in an effort to identify novel techniques for improving efficiency. One such effort targets the barrier imposed by wake turbulence separation standards—reducing interaircraft spacing during radar operations. Recently, concepts have focused on exploiting the effects of wake transport under wind fields by developing wind-dependent procedures that mitigate wake hazards during favorable wind conditions. However, the challenge with regard to computing benefits during conditional time epochs requires methodology designed for a niche modeling area that even sophisticated airport capacity simulation models lack. This work attempts to augment the capacity computation by presenting a characterization of the favorable crosswind availability across a range of thresholds and aloft monitoring heights based on Rapid Update Cycle and aviation system performance measure weather data. The focus is on presenting a generalization of wind behavior and on providing insight into the effects of the wind on the applicability of wind-dependent wake-based procedures. Data for nine major U.S. airports currently operating closely spaced parallel runways are analyzed.
Role of nanoadditive blended biodiesel emulsion fuel on the working characteristics of a diesel engine

Biodiesel emulsions are considered as the propitious alternative fuels for diesel engines. The need of biodiesel emulsion fuels for the diesel engines is to curtail the dependency on the fossil fuels in context to the world energy oil crisis. Henceforth, the present study provides a tangible pathway to prepare and to ameliorate the biodiesel emulsion fuel on incorporating potential alumina nanoparticles. The biodiesel emulsion fuel is prepared by emulsification technique comprising of 83% of jatropha biodiesel, 15% of water, and 2% of surfactants (Span80 and Tween80) with the aid of a mechanical agitator. The prepared biodiesel emulsion fuel is mixed with the alumina nanoparticles in the mass fractions of say 25, 50, and 100 ppm with the help of an ultrasonicator. The whole investigation is carried out in a constant speed diesel engine in three phases using jatropha biodiesel, jatropha biodiesel emulsion fuel, and alumina nanoparticle blended jatropha biodiesel emulsion fuels. The experimental results rev.
Analisis Tindak Tutur Pada Spanduk di Tempat Wisata Bukit Kelinci, Sumatera Barat

Banner writing usually uses very direct language and attracts the attention of many people. The research was conducted in the tourist area of ​​Bukit Kelinci, Baso. Data is writing on banners along the Bukit Kelinci tourist area, Baso. The data was taken using the listening method and the free-to-talk technique. In addition, recording and photographing techniques are also used. The data were analyzed using the concept proposed by Searle (1983). The results of the analysis are presented in a descriptive-narrative way. From the analysis of data on the use of language on banners at the Bukit Kelinci tourist spot, Baso, three (3) directive speech acts were found. These three utterances function to invite and prohibit. This is because tourist attractions are usually places to relax with family and friends. In order not to disturb the comfort of the visitors, therefore the visitors are invited to play with the rabbits, as well as to maintain politeness from things that are not desired, the visitors are strictly prohibited not to make out and commit immorality in the area. In the author's opinion, there are still many stories found in tourist attractions in the West Sumatra area, this is because West Sumatra is an area with good and beautiful nature.
Sensing Glucose Concentration Using Symmetric Metasurfaces under Oblique Incident Terahertz Waves

In this article, a planar metamaterial sensor designed at terahertz (THz) frequencies is utilized to sense glucose concentration levels that cover hypoglycemia, normal, and hyperglycemia conditions that vary from 54 to 342 mg/dL. The sensor was developed using a symmetric complementary split rectangular resonator at an oblique incidence angle. The resonance frequency shift was used as a measure of the changes in the glucose level of the samples. The increase in the glucose concentration level exhibited clear and noticeable redshifts in the resonance frequency. For instance, a 67.5 GHz redshift has been observed for a concentration level of 54 mg/dL and increased up to 122 GHz for the 342 mg/dL concentration level. Moreover, a high sensitivity level of 75,700 nm/RIU was observed for this design. In the future, the proposed THz sensors may have potential applications in diagnosing hypocalcemia and hyperglycemia cases.
Amniotic Fluid-derived MSC Secretome Halts Action of IL-1β and TNF-α Through ERK/MAPK and Returns Cartilage Repair Under OA Inflammatory Stimuli

Background: Osteoarthritis (OA) is a degenerative cartilage disease. OA cartilage has a limited repair capacity due to the effect of IL-1β and TNF-α on the chondrocyte progenitor cells (CPC) in an OA joint. Mesenchymal stem cells (MSC) therapy is a therapeutic option for osteoarthritis that initiated by the ability of secretory growth factors and mediator molecules to heal OA. Amniotic fluid MSC (AF-MSC), an interesting MSC source, has been shown to secrete various growth factors and anti-inflammatory molecules promoting tissue repair and regeneration. However, the effect of AF-MSC secretory factors to inflammation and cartilage repair is still limited. The current study aims to explore the action of AF-MSC secretome to IL-1β and TNF-α, and the CPC function that encourages cartilage repair.Methods: The effect of AF-MSC secretome to OA inflammatory cytokines was observed via the CPC migration using scratch assay. Inhibitory action of AF-MSC secretome to IL-1β and TNF-α was determined through NF-κB and MAPK signaling pathways by western blot. The repaired function of OA cartilage was analyzed via the cartilage outgrowth study and the expression of chondrogenic and anabolic genes using qRT-PCR.Results: AF-MSC secretome can arrest inflammatory action of IL-1β and TNF-α and reduces production of NF-κB, pNF-κB, p38, pp38, ERK, COX-2, and iNOS signaling proteins. It significantly reduced the production of pERK (P = 0.0434). For cartilage repair, AF-MSC secretome promotes CPC outgrowth and migration in human OA cartilage, even under inflammatory stimuli. By the action of AF-MSC secretome, the inflamed CPC can restore Col II and anabolic genes; IGF1 expression, indicating reactivation of cartilage regeneration.Conclusion: AF-MSC secretory factors have the ability to halt inflammatory actions of IL-1β and TNF-α via the ERK/MAPK pathway and motivate CPC function and anabolic property.
Corrosion-Fatigue Life Prediction Modeling for RC Structures under Coupled Carbonation and Repeated Loading

The coupled action of concrete carbonation and repeated loading strongly influences the safety of reinforced concrete (RC) structures and substantially reduces service life. A novel corrosion-fatigue life prediction model for RC structures under coupled carbonation and repeated loading was developed. The effect of fatigue damage on concrete carbonation and carbonation-induced corrosion rate was considered, and the acceleration of fatigue damage accumulation due to reinforcement corrosion was considered in this approach. The proposed corrosion-fatigue life prediction model was illustrated by a 6 m-span RC slab in a simply supported slab bridge for the highway, and the effects of traffic frequency, overloading, carbonation environment grade, and environmental temperature and relative humidity on corrosion-fatigue life were discussed. The results indicate that the proposed model can predict the corrosion-fatigue life of RC structures simply and conveniently. Traffic frequency, overloading, carbonation environment grade, and environmental temperature and relative humidity can decrease the corrosion-fatigue life of the RC slab by up to 66.86%, 58.90%, 77.45%, and 44.95%, respectively. The research is expected to provide a framework for the corrosion-fatigue life prediction of RC structures under coupled carbonation and repeated loading.
Reducing Power Consumption and Total Cost in C-RAN Based on Dynamic BBU Allocation

Cloud Radio Access Network (C-RAN) architecture has been anticipated as an effective approach to overcoming next generation (5G) wireless challenges by combining RAN and cloud networking. C-RAN demands a new paradigm of energy consumption and optimized its resources. In this paper, a C-RAN with dynamic Base Band Unit (BBU) allocation is presented, and based on this allocation we propose a power model aiming to decrease the total network power consumption. We also propose a cost model to reduce the total cost of the C-RAN. This paper also develops analytical models that enable to compare traditional RAN (T-RAN) design with the emerging Cloud RAN paradigm. Numerical results come about based on simulation settings recommend that the proposed C-RAN has better performance than the traditional network in terms of both power consumption and system cost.
Determination of the Optimal Tilt Angle for Solar Photovoltaic Panel in Ilorin, Nigeria

The optimal tilt angle of solar photovoltaic panel in Ilorin, Nigeria was determined. The solar panel was first mounted at 0o to the horizontal and after ten minutes, the voltage and current generated with the corresponding atmospheric temperature were recorded. The same procedure was repeated for 2o to 30o at a succession of 2o at ten minutes time interval over the entire measurement period. The result obtained shows that the average optimal tilt angle at which a solar panel will be mounted for maximum power performance at fixed position in Ilorin is 22o. This optimum angle of tilt of the solar panel and the orientation are dependent on the month of the year and the location of the site of study.
Revisiting the theory of revenue diversification: Insights from an empirical analysis of municipal budgetary solvency

How does revenue diversification shape the budgetary solvency of city governments? Previous studies informed by the public choice/fiscal illusion perspective suggest that diversification leads to unsustainable government expansion and budgetary imbalance. In contrast, the organizational adaptation/modern portfolio theory suggests that diversification enables government to prepare for external fiscal shocks. We use different measures of revenue diversification and rely on audited financial information to develop general fund-based and government-wide budgetary solvency measures for more than 500 midsized and large cities in the U.S. from 2006 to 2012. Addressing omitted variable bias, the results of the econometric analyses indicate that the type of diversification matters. Specifically, diversifying to non-tax sources improves budgetary solvency as indicated by higher government-wide operating ratio and reserves, whereas diversifying within the tax structure produces the opposite effects. The contradictory results point to the need to rethink current theories of diversification, which do not recognize the different ways that revenue structures can be broadened, and how these produce distinct effects on fiscal performance. We lay out the critical first step in clarifying and further developing a more nuanced theory by proposing three causal mechanisms outlining the pathways through which the types of diversification can influence budget outcomes.
Approximating the Steady-state Temperature of 3D Electronic Systems with Convolutional Neural Networks

Thermal simulations are an important part in the design of electronic systems, especially as systems with high power density become common. In simulation-based design approaches, a considerable amount of time is spent by repeated simulations. In this work, we present a proof-of-concept study of the application of convolutional neural networks to accelerate those thermal simulations. The goal is not to replace standard simulation tools but to provide a method to quickly select promising samples for more detailed investigations. Based on a training set of randomly generated circuits with corresponding Finite Element solutions, the full 3D steady-state temperature field is estimated using a fully convolutional neural network. A custom network architecture is proposed which captures the long-range correlations present in heat conduction problems. We test the network on a separate dataset and find that the mean relative error is around 2 % and the typical evaluation time is 35 ms per sample ( 2 ms for evaluation, 33 ms for data transfer). The benefit of this neural-network-based approach is that, once training is completed, the network can be applied to any system within the design space spanned by the randomised training dataset (which includes different components, material properties, different positioning of components on a PCB, etc.).