Miracle-dz/UniFAR-FTUs huggingface dataset:
Implementation of INC-PIMPPT and its comparison with INC MPPT by direct duty cycle control for solar photovoltaics employing zeta converter

This paper presents the implementation of incremental conductance (INC) MPPT by perturbation in voltage by using Zeta converter to track Maximum power point (MPP) of solar photovoltaic (SPV) array. INC MPPT by perturbation in voltage requires a PI controller (INC-PI MPPT). The INC-PI MPPT removes the dilemma of step size selection faced in INC MPPT by direct duty cycle control and tracks MPP with high speed and reduced oscillations around MPP without compromising on accuracy. Zeta converter operates in continuous conduction mode and provides an unbounded region for MPPT. The proposed system is designed and modeled to obtain good accuracy and stability under highly dynamic conditions. The proposed system is simulated, and a comparison of INC-PI MPPT and INC MPPT by direct duty cycle control is presented using MATLAB/Simulink to verify the proficiency of proposed system under practical operating conditions.
Factors affecting quality of life in patients with coronary heart disease

Background: Cardiovascular diseases are currently the most common cause of death worldwide and associated with significant impairment of quality of life (QOL). In this study, we aimed to evaluate the QOL patients with coronary heart disease (CHD) in our country and the factors associated with QOL in these patients. Materials and Methods: The study population was composed of 85 patients diagnosed with stable CHD. The data were collected using Ferrans and Powers’ Quality of Life Index Cardiac VersionIV and the query designed by the investigators. Results: Eighty-five patients (29 female, 56 male; ages between 38 and 72 years) were enrolled in this study. Married patients and those with greater incomes had greater QOL scores. Patients who had difficulties in daily works due to cardiac problems had lower QOL. Interestingly, patients with previous coronary intervention or surgey had similar QOL scores compared to those without. Patients who got emotional and social support had a greater social/economic score and who were able to get tangible social support had a higher global QOL score. Independent variables affecting the global QOL were marital and financial status, prior myocardial infarction (MI), and having difficulty in daily works. Conclusion: Marital and financial status, prior MI, and having difficulty in daily works are the main determinants for the QOL in patients with CHD. Social support may increase the effectiveness of their rehabilitation and psychosocial activity, thereby QOL. Effective public health interventions should be aimed at improving QOL, especially in the most vulnerable groups.
Design of Hybrid Energy Storage Control System for Wind Farms Based on Flow Battery and Electric Double-Layer Capacitor

An energy storage system (ESS) in a wind farm is required to be able to absorb wind power fluctuations during gusts, and improve the power quality and stability. This paper puts forward a flow-battery and electric double-layer capacitor (EDLC) hybrid ESS to provide both large power and energy capacity. The hybrid ESS is connected to the point of common coupling. Flow-battery is directly connected to the ESS dc bus while the EDLC has a dc/dc IGBT converter interface. The dc bus voltage varies within a certain range determined by the variable battery terminal voltage. With the EDLC absorbing high-frequency power surges, battery power rating, degree of discharge, and power losses are all reduced. Therefore the battery in the hybrid ESS has low cost and high longevity; and the system overall efficiency is enhanced. Fluctuations in the active and reactive power of the wind farm are compensated with four-quadrant power operation of hybrid ESS. The energy storage is optimized by properly designing the bandwidth of flow-battery and EDLC power regulator. Simulation results show the effectiveness of the control strategy of the hybrid ESS.
Cooperative interactions between paired domain and homeodomain

The Pax proteins are a family of transcriptional regulators involved in many developmental processes in all higher eukaryotes. They are characterized by the presence of a paired domain (PD), a bipartite DNA binding domain composed of two helix-turn-helix (HTH) motifs, the PAI and RED domains. The PD is also often associated with a homeodomain (HD) which is itself able to form homoand hetero-dimers on DNA. Many of these proteins therefore contain three HTH motifs each able to recognize DNA. However, all PDs recognize highly related DNA sequences, and most HDs also recognize almost identical sites. We show here that different Pax proteins use multiple combinations of their HTHs to recognize several types of target sites. For instance, the Drosophila Paired protein can bind, in vitro, exclusively through its PAI domain, or through a dimer of its HD, or through cooperative interaction between PAI domain and HD. However, prd function in vivo requires the synergistic action of both the PAI domain and the HD. Pax proteins with only a PD appear to require both PAI and RED domains, while a Pax-6 isoform and a new Pax protein, Lune, may rely on the RED domain and HD. We propose a model by which Pax proteins recognize different target genes in vivo through various combinations of their DNA binding domains, thus expanding their recognition repertoire.
Instructions for use Title Learning a subclass of regular patterns in polynomial time Author ( s ) Case ,

An algorithm for learning a subclass of erasing regular pattern languages is presented. On extended regular pattern languages generated by patterns π of the form x0α1x1 . αmxm , where x0, . , xm are variables and α1, . , αm strings of terminals of length c each, it runs with arbitrarily high probability of success using a number of examples polynomial in m (and exponential in c ). It is assumed that m is unknown, but c is known and that samples are randomly drawn according to some distribution, for which we only require that it has certain natural and plausible properties. Aiming to improve this algorithm further we also explore computer simulations of a heuristic. 1 Supported in part by NSF grant number CCR-0208616 and USDA IFAFS grant number 01-04145. 2 Supported in part by NUS grant number R252-000-127-112. 3 Supported in part by NUS grant number R252-000-212-112. Most work was done while F. Stephan stayed with the National ICT Australia which is funded by the Australian Government’s Department of Communications, Information Technology and the Arts and the Australian Research Council through Backing Australia’s Ability and the ICT Centre of Excellence Program. Preprint submitted to Elsevier Science 4 August 2006
Effect of administration of oral contraceptives on the synthesis and breakdown of myofibrillar proteins in young women

Oral contraceptive (OC) treatment has an inhibiting effect on protein synthesis in tendon and muscle connective tissue. We aimed to investigate whether OC influence myofibrillar protein turnover in young women. OC‐users (24±2 years; Lindynette®n=7, Cilest®n=4) and non‐OC‐users (controls, 24±4 years n=12) performed one‐legged kicking exercise. The next day, the myofibrillar protein fractional synthesis rate (FSR) was measured using stable isotopic tracers (13C‐proline) while the subjects were fed standardized nutrient drinks. Simultaneously, a marker for myofibrillar protein breakdown, 3‐methyl‐histidine (3‐MH), was measured in the interstitial fluid of the vastus lateralis. Measurements were performed in both legs. In general, myofibrillar protein FSR was lower in OC‐users (two‐way analysis of variance, P<0.05), although the difference seemed to depend on the OC type. Interstitial 3‐MH in the skeletal muscle was not different between groups and did not vary by OC type. Exercise did not change myofibrillar protein FSR or 3‐MH concentrations. Serum androstenedione and bioavailability of testosterone were lower in OC‐users. In conclusion, the results indicate that the use of OC has an inhibiting effect on myofibrillar protein synthesis and the magnitude of the effect may depend on the type of OC. In contrast, there was no effect of OC on myofibrillar protein breakdown in the fed state.
The perceptual wavelet feature for noise robust Vietnamese speech recognition

This study proposes a novel noise robust speech feature for Vietnamese speech recognition based on the Bark scale, the Perceptual Wavelet Packet Transform (PWPT), the Wavelet sub-band Energy Parameters (WEP). This method is used in compare to the widely used MFCC feature recognizer. The experimental results show that our proposal is superior to the widely used MFCC feature for Vietnamese speech corpus with both clean and white noisy speech.
Collective Sensing of β-Cells Generates the Metabolic Code

Major part of a pancreatic islet is composed of β-cells that secrete insulin, a key hormone regulating influx of nutrients into all cells in a vertebrate organism to support nutrition, housekeeping or energy storage. β-cells constantly communicate with each other using both direct, short-range interactions through gap junctions, and paracrine long-range signaling. However, how these cell interactions shape collective sensing and cell behavior in islets that leads to insulin release is unknown. When stimulated by specific ligands, primarily glucose, β-cells collectively respond with expression of a series of transient Ca2+ changes on several temporal scales. Here we reanalyze a set of Ca2+ spike trains recorded in acute rodent pancreatic tissue slice under physiological conditions. We found strongly correlated states of co-spiking cells coexisting with mostly weak pairwise correlations widespread across the islet. Furthermore, the collective Ca2+ spiking activity in islet shows on-off intermittency with scaling of spiking amplitudes, and stimulus dependent autoassociative memory features. We use a simple spin glass-like model for the functional network of a β-cell collective to describe these findings and argue that Ca2+ spike trains produced by collective sensing of β-cells constitute part of the islet metabolic code that regulates insulin release and limits the islet size.
LiFePO4 dynamic battery modeling for battery simulator

This paper proposes dynamic battery modeling for LiFePO4 battery simulator. LiFePO4 battery of Li-ion type battery has best characteristic in other type of batteries. So this paper describes LiFePO4 battery model for battery simulator. LiFePO4 battery's voltage waveform is non-linear and changed by transient load. So the shepherd model is applied to describe this non-linear waveform and thevenin battery model is applied to present characteristics of behavior corresponding to the changing of transient load. Also, in order to apply battery model to battery simulator, proposed battery model is converted to discrete time model. Parameters of proposed battery model are estimated in experimental. The proposed battery model is compared getting the voltage waveforms of the battery using experiment with simulation's waveforms is verified.
Numerical Analysis of Coupling Characteristics of Tunable Photonic Crystal Fiber Coupler for Nonlinear Optical Microscopy

As a kind of significant fiber device, an optical fiber coupler can make the nonlinear optical microscopy more compact and flexible for in vivo imaging. We numerically investigate the coupling efficiencies of side-polished large mode area endlessly single mode photonic crystal fiber coupler over the visible and near infrared wavelength range by using improved fully vectorial effective index method and weak-coupling theory. We find that appropriate combinations of the core distance and the angle between two side-polished fibers can accomplish a large mode area endlessly single mode photonic crystal fiber coupler to simultaneously deliver the near infrared laser for excitation and split the fluorescence for detection.
Autonomous navigation algorithm for precision landing on unknown planetary surfaces

A localization algorithm is developed to assist automated landing on unknown planetary surface. Classically, using a vision-sensor only, the vehicle states are subject to an observability issue. In order to overcome this problem, relative motion estimates were used as measurements in addition to image-plane data of the feature points. Using these data as measurements, a nonlinear least square estimator was designed that estimates the state vector when a priori knowledge of the state is not available. Furthermore, an Extended Kalman filter with fusing on-board IMU data was developed and shows promising results for future refinement of the previous estimates.
Marker-based Chunking for Analogy-based Translation of Chunks

An example-based machine translation (EBMT) system based on analogies requires numerous analogies between linguistic units to work properly. Consequently, long sentences cannot be handled directly in such a framework. In this paper, we inspect the quality of translation of chunks obtained by marker-based chunking in English and French in both directions. Our results show that more than three quarters of the chunks can be translated by the one-step analogy-based translation method, and that a little bit less than half of the chunks has at least one translation that matches exactly with one of the references.
Differences in childbearing by time frame of fertility intention. A study using survey and register data from Norway

This paper focuses on the realization of positive fertility intentions with different time frames. The analyses are based on a unique combination of survey data and information from Norwegian administrative registers on childbearing in the years following the complete selected sample. Guided by the theoretical and empirical framework of the Theory of Planned Behavior (TPB), the results suggest that a fertility intention's time frame is relevant for childbearing behaviour, but the patterns are somewhat different for respondents who were childless at the time of the interview compared to those who already had children. Overall, childless respondents were less likely to realize their fertility intentions than parents. Following the TPB, childless individuals may underestimate the difficulty of acting on their intentions and therefore have more difficulty realizing their intentions, versus parents who take into account their ability to manage another child. The results also show that childless individuals with an immediate fertility intention are more likely to succeed than those with a longerterm intention. Likewise, parents with an immediate fertility intention are more likely to realize their intention during the two first years after the interview, but after four years the childbearing rate was higher among those with longer-term fertility intentions.
Efficient Data Transmission Clustering Method Using Compressive Sensing for Wireless Sensor Networks

Compressive sensing (CS) reduces the number of data transmissions and also balances the traffic load throughout the networks. However, the total number of transmissions for data collection by using pure compressive sensing is still large. The hybrid method of using compressive sensing technique was proposed to decrease the number of transmissions in the sensor networks. The previous works also used the Compressive Sensing technique on the routing trees. Proposed a clustering method which uses hybrid compressive sensing for the wireless sensor networks. The sensor nodes are arranged into clusters which means the group of nodes. Inside the cluster, nodes transmit the data to cluster head (CH) without using compressive sensing technique. The two levels of transmission in clustering method using hybrid CS technique are: Intra cluster transmission that do not use CS technique and Inter cluster that uses CS technique. The data size is same in both the methods. Reducing the number of data transmission can decrease the energy consumption of the sensor nodes. The sensor nodes are independently and uniformly distributed in sensor field. The distance between sensor nodes in the sensor field is determined by Euclidian distance which is in communication range. Sensor nodes collect the data periodically and transmit to sink through multi-hop with less number of transmissions using clustering method. Sensor data in the sensor networks has temporal or spatial correlation. The correlated data is in the form of wavelet domain or Fourier transform domain. Proposed model explains the relationship among the size of clusters and number of data transmissions in the hybrid CS method which aims of calculating the optimal size of clusters that can lead to minimum number of data transmissions. Proposed a centralized clustering algorithm based on the results obtained from the analytical model. The proposed methodology aims at using information of the node distribution and node location to enhance a clustering method which uses hybrid CS for sensor network.
Single- and Dual-Band Bandpass Filters Using Coupled Stepped-Impedance Resonators With Embedded Coupled-Lines

A pair of coupled stepped-impedance resonators and its use to build single- and dual-band bandpass filter (BPF) is presented. To that end, two symmetrical stepped-impedance resonators with two embedded coupled-line sections are used. The adopted resonators are coupled at the two open-ended edges. The first even-mode resonant mode can be suppressed or excited based on whether it is required to realize a single- or dual-band response. Sharp passband selectivity and stopband harmonic suppression are achieved due to the existence of multiple transmission zeros. For verification, single- and dual-band filters using the proposed resonator are designed, fabricated and tested. The experimental results show a passband of 2.34-2.62 GHz (centered at 2.45 GHz for WLAN system), less than 1.5 dB insertion loss for the single-band filter; the dual-band design has two passbands ranged from 2.28-2.67 GHz and 3.35-3.63 GHz with less than 1.2 dB insertion loss for WLAN and WiMAX systems.
Thermal stress analysis of PBGA under natural convection using a fluid-solid coupling method

Previous researchers usually set a constant heat transfer coefficient (HTC) for the surface heat exchange according to experience or empirical formulas to investigate the distribution of temperature and stress in their thermo-mechanical analysis, but this method does not satisfy the real condition since HTC may not be the same as people assume especially when the size is very small. Moreover, HTC is not constant but a function of temperature, location and complex structure of the package. Therefore the results obtained by setting constant HTC may not be accurate. In this paper, we demonstrate that HTC setting has a big influence on the distribution of temperature and stress, a slight change of HTC has great effect on the precision of final results. A more accurate method is necessary. In order to realize the above target, the fluid-solid coupling method was presented. To verify the validity of this method, an experiment was conducted. And the temperature difference between the simulation and experiment is less than 10%, which indicates that the fluid-solid coupling method is valid. We calculated the temperature and stress distributions by using the constant HTC based on empirical equation and by the present coupling method, the comparison shows that there is difference when using these two methods. This is due to that the HTC is different at every location of packaging surface, using an averaging and constant HTC will produce errors. To obtain the accurate result, fluid-solid coupling method must be utilized, especially when the empirical formula is not available in many application cases.
The Thoracodorsal Artery Perforator Flap: Clinical Experience and Anatomic Study with Emphasis on Harvest Techniques

The thoracodorsal artery perforator flap is a relatively new flap that has yet to find its niche in reconstructive surgery. At the authors’ institution it has been used for limb salvage, head and neck reconstruction, and trunk reconstruction in cases related to trauma, burns, and malignancy. The authors have found the flap to be advantageous for cranial base reconstruction and for resurfacing the face and oral cavity. The flap has been used successfully for reconstruction of traumatic upper and lower extremity defects, and it can be used as a pedicled flap or as a free tissue transfer. The perforating branches of the thoracodorsal artery offer a robust blood supply to a skin–soft-tissue paddle of 10 to 12 cm × 25 cm, overlying the latissimus dorsi muscle. The average pedicle length is 20 cm (range, 16 to 23 cm), which allows for a safe anastomosis outside the zone of injury in traumatized extremities; the flap can be made sensate by neurorrhaphy with sensory branches of the intercostal nerves. Vascularized bone can be transferred with this flap by taking advantage of the inherent vascular anatomy of the subscapular artery. A total of 30 pedicled and free flap transfers were performed at the authors’ institution with an overall complication rate of 23 percent and an overall flap survival rate of 97 percent. Major complications, such as vascular thrombosis, return to the operating room, fistula formation, recurrence of tumor, and flap loss, occurred in 17 percent of the patients. Despite these drawbacks, the authors have found the thoracodorsal artery perforator flap to be a safe and extremely versatile flap that offers significant advantages in acute and delayed reconstruction cases.
Design of a 3D localization method for searching survivors after an earthquake based on WSN

Localization is one of key technologies in Internet of Things (IoT) and Wireless Sensor Network (WSN). Various applications have been proposed based on it, e.g. location-aware services. Currently, there are many approaches to locate a person, e.g. based on GPS, RFID, ultrasonic signal etc based on various methods, e.g. TOA, TDOA, AOA, RSSI etc. However, when an earthquake happens, the localization devices in building may be damaged and how to quickly locate the survivors buried in the collapse regional is a key issue, which can save many lives. In the paper, we propose a new method to locate a 3D location of the survivors, i.e. also computing the depth of the buried survivors based on WSN. The method mainly consists of two stages. In the first stage, a draft location of the survivors is computed based on mobile base stations. And then the accurate location of the survivor, i.e. the 3D location, is calculated by an equilateral triangle device with a mobile beacon node.
Design and analysis of STATCOM for reactive power compensation and transient stability improvement using intelligent controller

The static synchronous compensator is used in power system network for improving voltage of a particular bus and compensates reactive power. It is connected to a bus near to source to improve the voltage profile and reactive power compensation. The STATCOM control scheme for grid connected system for power quality improvement is simulated using MATLAB/SIMULINK in power system block. The proposed scheme is applied for both linear and non linear load. The fuzzy controller is used static critical time and better damping oscillations system after short circuit fault presented. To achieve this idea a controller is designed based on energy function. Here a membership function identifies from the fuzzy system. Fuzzy controller is employed to the system to enhance transient stability. The performance is analyzed using digital simulation with single machine infinite bus (SMIB).