Miracle-dz/UniFAR-FTUs huggingface dataset:
Educating National Cultural Identity for Vietnamese Students: A Case Study at an Giang University

National cultural identity is a system of traditional values, aesthetics, and lifestyle of a nation, which forms typical, progressive, and distinctive features. Cultural identity helps us to understand different cultures among ethnic groups. The national cultural identity represents the vitality, creativity, and development of the nation. The nation's culture is the foundation of society, the goal, and the driving force for economic and social development. However, it has not yet received due attention in education in Vietnam. The purpose of this study is to find out students' perceptions and evaluations of the importance of education on national cultural identity. A questionnaire survey was distributed to 247 students at An Giang University. Through descriptive statistical analysis with SPSS, the research results show that the majority of students have a rather high opinion of the need to educate the national cultural identity; The proposed content and form of education on national cultural identity has a rather high average value. However, the contents, forms, and methods of educating national cultural identity have not been clearly defined and are still limited. The findings of this study have theoretical and practical implications for Vietnamese higher education. Proposals presented to university administrators and educational policymakers were discussed. Research results are also the basis for conducting further studies on culture. Traditional culture is distilled and transmitted so that the process of integration and globalization contributes to the creation of civilization, an opportunity for each country and nation to enrich their culture.
A wireless pressure measurement system using a SAW hybrid sensor

A pressure measuring system based on surface acoustic wave (SAW) sensors is presented. Since SAW sensors are powered by the energy of the RF field no battery is required, which is a major drawback of conventional microcontroller based telemetry systems. A successful combination of a SAW reflective delay line with a high-Q capacitive pressure sensor is shown. With a new way of matching the sensor impedance to the SAW reflector impedance both a high signal-to-noise ratio and a high signal dynamic are achieved which supports accurate signal evaluation. As an example of realization the prototype of a tyre pressure sensor unit is presented.
Bearing Looseness Fault Characteristics Analysis of Rotor System Based on Incremental Harmonic Balance Method

Support or pedestal looseness fault exists in mechanical system typically.A new dynamical model of an eccentric motor rotor system with a piecewise-linear stiffness was proposed, and the incremental harmonic balance method was employed to obtain analytic solutions of the model. Then, the time domain waveform and amplitude spectrogram were achieved by applying the analytic solutions to program and iterate in the MATLAB software. Finally, the characteristics of looseness was analyzed. Results show that this research method is feasible, and this paper may provide a theoretical basis for the solution of complex bearing looseness model analytically and the diagnosis of its fault.
Consistent model for the hot-carrier degradation in n-channel and p-channel MOSFETs

A model is derived using the charge-pumping technique for the evaluation of the interface characteristics, in combination with the behavior of the drain and the substrate currents after degradation. For n-channel transistors the degradation is mainly caused by the generation of interface traps. Only in the region of hole injection (V/sub g/ approximately=V/sub t/) is the degradation dominated by the trapped holes, which mask the effect of the generated interface traps. The degradation of p-channel transistors, although completely different at first sight, occurs by the same mechanisms. For this case, the degradation is caused by trapped negative charge, which masks the influence of the interface traps. The latter are nevertheless generated in comparable amounts as in n-channel transistors. Based on these insights, improved procedures for accelerated-lifetime experiments are proposed for both channel types. Finally, the peculiar degradation behavior of n-channel transistors under alternating injection conditions is discussed and fully explained based on the static stress degradation model. >
The Laser Scanning System Calibrations in Unmanned Yard

In an unmanned yard, some parameters of the system would change due to equipments wear and deformed. These changes resulted in the 3D reconstruction parameters changing. The inaccuracy of the 3D reconstruction parameters decreases the system operating efficiency and result in the waste of resources and energy. In this paper, a rapid laser parameter calibration algorithm was discussed, the experiment result in a real unmanned yard show this method is feasible.
DETERMINING IRRIGATION REQUIREMENTS FOR VEGETABLES AND SUGARCANE IN JAMAICA

Currently, only 10% of the cultivated lands in Jamaica are irrigated, and as a result farmers are highly dependent on seasonal rainfall. For this reason, a study was undertaken in order to determine monthly irrigation requirements for three study sites, for both vegetables and sugarcane. A proper scientific methodology was applied to achieve this information on crop water requirements in Jamaica for the first time. In addition, the cumulative frequencies of monthly and seasonal rainfall depths were analyzed, and this information used to develop monthly rainfall values, as well as seasonal rainfall values for different return periods for the sites. Each study site was found to be unique in its irrigation requirements, which highlights the climatic and soil variability across the island. However, all three sites were similar in their need for irrigation during the months of March and April for vegetables, signifying that this is a universally dry period across the island. This information is meant to provide a foundation for irrigation planning and water management strategies during water‐scarce conditions. Copyright © 2014 John Wiley & Sons, Ltd.
The distribution and biogeography of slow worms (Anguis, Squamata) across the Western Palearctic, with an emphasis on secondary contact zones

The slow-worm lizards (Anguis) comprise five species occurring throughout most of the Western Palearctic. Although these species are relatively uniform morphologically – with the exception of A. cephallonica, which exhibits a quite unique morphology – they are genetically deeply divergent. Here, we provide detailed distribution maps for each species and discuss their biogeography and conservation based on updated genetic data and a robust distribution database. We pay particular attention to the so called ‘grey zone’, which typically represents secondary contact zones and in some cases confirmed or presumed hybrid zones. Four of the five species live in parapatry, while only two species, A. cephallonica and A. graeca from the southern Balkans occur in partial sympatry. Further research should focus on the eco-evolutionary interactions between species in contact, including their hybridization rates, to reveal deeper details of the slow-worm evolutionary and natural history.
Long-Haul Shipment Optimization for Less-Than-Truckload Carriers

Less-than-truckload (LTL) carriers supply freight transportation services for small parcel shipments. These companies consolidate multiple shipments in vehicles to guarantee the efficiency of the system. A method for LTL carriers is presented to solve the long-haul routing design problem with capacitated distribution centers and time-constrained shipments. The method uses direct, hub-and-spoke, and stopover strategies to allocate shipments in the set of routes. The resolution method is based on a tabu search algorithm. The search process in the solution domain is performed dynamically with four possible perturbations. The results obtained in a set of test problems demonstrate that the restart parameters play a significant role in the efficiency of the algorithm. Implementation of this computational technique in the long-haul operations network of the largest carrier in Spain reduced transportation costs by 6%.
Efficacy of angiotensin receptor neprilysin inhibitor in Asian patients with refractory hypertension

Sacubitril/valsartan, simultaneously inhibits neprilysin and angiotensin II receptor, showed an effect in reducing blood pressure (BP). The authors aimed to study whether it can be used as an antihypertensive agent in patients with refractory hypertension who have already been treated. A total of 66 Chinese patients with refractory hypertension were enrolled. Patients received sacubitril/valsartan 200 instead of angiotensin II receptor blocker or angiotensin converting enzyme inhibitor while other agents continued. If BP was uncontrolled after 4 weeks, sacubitril/valsartan was increased to 400 mg. The BP reduction was evaluated by office BP and ambulatory BP monitoring after 8‐week treatment. The baseline office BP and mean arterial pressure (MAP) were 150.0/95.0 mmHg and 113.3 mmHg. BP and MAP reduced to 130.6/83.2 mmHg and 99.0 mmHg at week 8. Office BP and MAP reductions were 19.4/11.8 mmHg and 14.3 mmHg at endpoint (all p < .001). The 24‐h, daytime and nighttime ambulatory BP were 146.2/89.1, 148.1/90.3, and 137.5/83.7 mmHg, respectively at baseline, and BP reduced to 129.6/79.8, 130.6/81.1, and 121.7/75.8 mmHg, respectively at week 8. The 24‐h, daytime and nighttime ambulatory BP reductions were 16.6/9.3, 17.5/9.2, and 15.8/7.9 mmHg, respectively at endpoint (all p < .001). Sacubitril/valsartan significantly reduced office and ambulatory BP in refractory hypertension patients. Our study provided new evidence for sacubitril/valsartan in refractory hypertension.
Molecular electronics and reconfigurable logic

This paper describes a reprogrammable architecture based on regular matrices of fine-grain dynamically reconfigurable cells based on double-gate carbon nanotube field effect transistors (DG-CNTFET) exhibiting ambivalence (p-type or n-type behaviour depending on the back-gate voltage). Using available models, reconfigurable cells have been simulated and performance metrics quantified at 4 GHz operation. A function mapping method suitable for this matrix structure has been devised, and various interconnect topologies have been analysed, showing average mapping success rates to 4 × 4 cell matrices of above 80% for 8-node function graphs. This gives insight into the way data functionality could be coded into the architecture based on such reconfigurable cells for on-the-fly and partial reprogrammability.
A Density-Based and Lane-Free Microscopic Traffic Flow Model Applied to Unmanned Aerial Vehicles

In this work, we introduce a microscopic traffic flow model called Scalar Capacity Model (SCM) which can be used to study the formation of traffic on an airway link for autonomous Unmanned Aerial Vehicles (UAVs) as well as for the ground vehicles on the road. Given the 3D trajectory of UAV flights (as opposed to the 2D trajectory of ground vehicles), the main novelty in our model is to eliminate the commonly used notion of lanes and replace it with a notion of density and capacity of flow, but in such a way that individual vehicle motions can still be modeled. We name this a Density/Capacity View (DCV) of the link capacity and how vehicles utilize it versus the traditional One/Multi-Lane View (OMV). An interesting feature of this model is exhibiting both passing and blocking regimes (analogous to multi-lane or single-lane) depending on the set scalar parameter for capacity. We show the model has linear local (platoon) and asymptotic linear stability. Additionally, we perform numerical simulations and show evidence for non-linear stability. Our traffic flow model is represented by a nonlinear differential equation which we transform into a linear form. This makes our model analytically solvable in the blocking regime and piece-wise analytically solvable in the passing regime. Finally, a key advantage of using our model over an OMV model for representing UAV’s flights is the removal of the artificial restriction on passing via only adjacent lanes. This will result in an improved and more realistic traffic flow for UAVs.
A Study on the Blue Coloration of Ao-ike Pond, Aomori Prefecture, Japan: Formulation of a Physical Model in Terms of Radiance and Image Analyses

The blue coloration model of a closed pond, Ao-ike Pond, Aomori Prefecture, Japan, was formulated in terms of radiance by applying a theory of observation devices proposed by Szirmay-Kalos (2008) and Hanaishi’s reverse ray tracing method. In this model, three potential contributions to the coloration were considered; irregular reflection at the Lambertian pond bottom, density fluctuation scattering by water, and Mie scattering by suspended solids. By utilizing model formulas for these mechanisms, some parameters were determined in order to duplicate the images of the pond surface without solar shading by tree leaves above the pond surface, in addition to the images with sunbeam trajectories by solar radiations passing through tree leaves, which are emitted from the water and visible on the surface. Simulating the pictures of the pond surface and the sun-beam-image analyses revealed that the blue colorations of Ao-ike Pond are mainly produced (1) by the density fluctuation scattering of water itself and the white Mie scattering by suspended solids and (2) by the red-light absorption by water in the optical paths before and after the two scatterings. Then, the density fluctuation scattering of water and the Mie scattering by suspended solids exhibited contributions of almost equal magnitude. The contribution of irregular reflections at the pond bottom was judged to be relatively small.
Lower limb kinematic variability associated with minimal footwear during running

Purpose: This study investigated lower limb variability when trained runners wore a minimal shoe for the first time. It was hypothesised that initial lower limb variability would be decreased in the minimal shoe condition due to lack of familiarity. It was also hypothesised that variability would increase over time as runners become more familiar with the condition. Methods: Testing included three 10 minute treadmill running trials conducted in runner's own running shoes, a pair of minimal shoes followed by runner's own shoes again. The shoe order was selected so as to establish a baseline value of variability in a runner's most familiar shoes followed by a perturbation which was the inclusion of minimal shoes. Continuous Relative Phase (CRP) relationships and kinematic values at heel strike were determined which allowed lower limb variability to be quantified. Results: Kinematic variability values were not statistically different between runner's own shoes and minimal shoes. CRP relationships did not differ between minimal shoes and runner's own shoes or over time. Conclusions: Trained runners did not change lower limb variability while wearing minimal shoes for the first time. Lack of familiarity does not appear to affect lower limb variability. The footwear included in this research study had similar cushioning properties to traditional footwear but with a different construction which may relate to similar values found between conditions. Investigating how runners of different abilities transition to minimal footwear should be focused upon to reduce risk of injury.
Sequence amplitude modulated inverters

This Static Inverter produces a true stepped waveform from a direct current source, which is symmetrical from one half cycle to the next half cycle. Because of its low output impedance and OC half-wave circulating path for current, the Inverter will deliver rectified, non-linear loads and still operate normally (low distortion) and under extremely poor power factor loads. The method used to obtain this type of stepped waveform was originally developed in 1965. With the advent of integrated circuits, the complexity and cost of the design was considerably reduced. Production of the eight steps of the waveform previously required eight separate volt· age generating sources. Today, through the use of integrated circuits, two or three voltage sources can perform the necessary function of producing eight to twenty-six (or more) steps if desired in a half wave cycle period. Only a fraction of the power (7%) is switched at a high frequency rate as compared with a Pulse Width Modulated technique. The bulk of the power (70%) is generated at the output frequency. The method of inversion discussed here can generate a high quality, high power sine wave voltage that meets most of the desirable character· istics of a high-quality inverter including low output impedance.
Evaluation of industrial machine design improvement ideas using characteristic-based hierarchical optimisation strategies

Design optimisation technologies are a practical requirement when aiming to obtain optimal product design variable values from an initially given feasible design space, but such technologies also can contribute to the generation of more effective product design alternatives, namely, product design innovations. This paper proposes an effective evaluation method that enables improvement of product design ideas, using characteristic-based hierarchical optimisation strategies applicable to industrial machine products. After related characteristics are decomposed into simpler characteristics, or simpler characteristics are extracted from higher level characteristics, new optimisation strategies are constructed based on clarification of the relationships among all the characteristics. Innovative processes that lead to product design improvements are analysed in detail by examining optimum solutions for various design improvement ideas, using displays of Pareto optimum solution lines or surfaces. The proposed system design optimisation method that is based on evaluations of evolutional Pareto optimum solutions is presented and exemplified here using an articulated robot product design, and applied at the conceptual product design stage.
Zero total dispersion in step-index monomode fibres at 1.30 and 1.55 μm

The total dispersion of monomode fibres is resolved into its constituent parts. The use of waveguide dispersion to shift the zero dispersion point to longer wavelengths is described. The range of fibre parameters that give zero total dispersion at 1.3 or 1.55 μm are evaluated numerically for germania-doped silica. Comments are made on the consequences for jointing and microbending losses.
Calculation of thermal fields of underground cable systems with consideration of structural steels constructed in a duct bank

Structural steels are used in underground cable systems to provide a high degree of mechanical protection for electrical cables. An accurate prediction of the temperature distribution of the system needs to include not only the effect of the total cable electrical losses but the eddy current losses induced in the steel. A finite element method is proposed to evaluate the losses generated in the conductors and in the steels, these are then used as the heat sources for thermal analysis. Several steel arrangements of a cable system are solved and compared. The results are useful for the design of a cable duct bank which uses structural steels.
A trellis search algorithm for the design of FIR filters with signed-powers-of-two coefficients

A trellis search algorithm is presented for designing FIR filters with sums of signed-powers-of-two (SPT) coefficients. Formulating the design problem as a dynamic-programming-like recursive optimization problem, our algorithm designs filters by performing a trellis search that is similar to the Viterbi algorithm. Design examples demonstrate that our algorithm is capable of yielding filters with better frequency response than existing methods while using fewer SPT terms.
Multi-Objective Robust Decentralized Control for the Interconnected Fuzzy Singularly Perturbed Models

A multi-objective robust decentralized control method is proposed for the interconnected fuzzy singularly perturbed models. Such decentralized controller can guarantee the whole closed-loop system is asymptotically stable even when the multi-time-scale subsystems are interactional. Besides, the disturbance attenuation performance, dynamic performance and control amplitude can be optimized synthetically. The simulations illustrate the effectiveness of the proposed method.
Passivity-based posture control of a humanoid robot using a power-conserved transformation

This paper proposes a passivity-based regulator for the balance of a humanoid robot. This regulator can dynamically stabilize internal motions as well as the configuration of a floating base. Using a unique transformation that conserves the power, we can rigorously prove the stability of an equilibrium point of the closed-loop system. Moreover, the regulator can be implemented easily since the transformation simplifies an optimization problem to determine the realizable control input and a post-process such as the inverse kinematics. Experiments validate the robustness of the proposed controller to disturbances, including a large angular momentum and large disturbances in the environments. GRAPHICAL ABSTRACT
Direction finding with nonuniform arrays via higher-order statistics

In array signal processing, it is shown that nonuniform arrays, such as minimum redundancy (MR) arrays or nonredundant arrays, may lead to significant improvement in performances. Unfortunately, a nonuniform array without matched sensor doublets cannot be employed in the covariance-based ESPRIT algorithm, which is known as one of the most popular high resolution eigenstructure techniques for direction-of-arrival (DOA) estimation and exhibits several advantages over another popular algorithm, the MUSIC algorithm, such as requiring no knowledge of the array geometry and less computations than MUSIC. In this paper we will show the requirement in ESPRIT that the array must be composed of sensor doublets, i.e., the array must be able to divided into two matched subarrays, can be easily removed by employing higher-order statistics (cumulants) instead of the original used second-order statistics (covariances) of the received data. Based on the proposed cumulant matrix pairs, a nonuniform array with L sensors can be used to resolve at least L DOA's. Simulation results illustrate that the proposed cumulant matrices hold the inherent advantages of both the nonuniform arrays in improving performances and the cumulant-based techniques in suppressing spatially colored Gaussian noise effects.
Prediction of banana volume using capacitive sensing method

A B ST R A C T An electronic device based on capacitive sensor was developed to predict the volume of banana fruit. This system, which is used for volume measurement has four components: a rectangular parallel plate capacitor, electronic circuitry, microcontroller, and display unit. After calibrating the electronic system, the results were verified with calibrated curve by means of linear regression and paired t-test. The coefficient of determination (R 2 ) for 1, 10, 100, and 450 kHz frequencies were obtained as 0.934, 0.88, 0.932, and 0.935, respectively. The acquired P-values for 1, 10, 100, and 450 kHz frequencies were 0.541, 0.448, 0.132, and 0.064. The results indicated that banana fruits size has no effect on the accuracy of the computed volume. The results for banana fruits showed that the predicted volume and actual volume are highly correlated and this method is ideal for determining the volume of fruits and it can be developed for other fruits, too.