Miracle-dz/UniFAR-FTUs huggingface dataset:
Fetomaternal outcomes in pregnancy complicated by epilepsy: a retrospective study

Background: This study is conducted to find out possible course and complications of epilepsy and its treatment in mother and fetus as many women will be anxious regarding this high-risk condition.Methods: This is a retrospective study conducted in department of obstetrics and gynaecology, AIMS Kochi from 2012-2019. Out of a total of 7045 deliveries during that period, we identified 64 patients with epilepsy complicating pregnancy. Antepartum, intrapartum and postpartum details of 57 patients whose data was available in electronic medical records was collected and analysed using SPSS 17 software.Results: In this study we noted that the incidence of epilepsy was 0.009%. the 50% of patients were in 25-30 years age group. More than 98% were on long term antiepileptic drugs. Majority were on monotherapy, most commonly on leviteracetam and were well controlled with monotherapy. The 38.5% had recurrence of seizures during pregnancy, mostly in latter half of pregnancy. Patients with seizure free interval of 9 months prior to pregnancy did not have any further epilepsy episodes. The incidence of other medical and obstetric complications was found to be similar to general population. There was 10% incidence of IUGR and fetal anomaly.Conclusions: The seizures were well controlled with monotherapy and we found that generally pregnancy and delivery is well tolerated and overall neonatal outcomes were good.
A contribution to the study of the IDT processes

The notion of processes which are innitely divisible with respect to time (in short IDT processes) has been introduced by R. Mansuy in 2005 like a wide generalization of L evy processes. Various properties of theses processes have been already established in [2]. In 2007, the work of E. Khalifa and Y. Ouknine [4] revealed more properties on this kind of processes. The purpose of this paper is to give several new examples of IDT processes for which we can explicit an associated L evy processes. Each time, theses examples were based on the sheet’s concept for e.g the L evy sheet (for which the Brownian sheet is a special case), the Gaussian sheet and the Sato sheet. In this paper, we also give a new concept of weak IDT processes, an integrated It^ o’s type formula for IDT processes and a link between IDT processes and selfdecomposability.
A new coding scheme in coded ultrasound using staggering repetition interval

The increase of frame rate, though with the potential in a coded ultrasound system, is generally concomitant with the simultaneous transmission of a number of apertures, and in consequence leads to increased cross-talks between different apertures. In view of this, a new coding scheme using staggering repetition interval was proposed. The transmitting signals were constructed by repeating the two (or more) modulated codes using staggering repetition interval, and then allocated to and transmitted simultaneously among different apertures. The decoding process was based on the subsection-matched filter under the assistance of different matched filters for different apertures. At last the outputs of subsection-matched filtering were added together. Staggering changed the positions of cross-correlation (CC) peaks from coinciding, which resulted in an effective reduction of CC. Our theoretical analysis and simulations showed that, the coding scheme can be used to reduce cross-talk, and a good cross-talk reduction will be achieved if the staggering delay is kept in an appropriate range.
Study on the Status and Development of Ship Management Company Based the Online Survey Technology

As a newborn organization bearing the responsibility, ship management company plays more and more important role in the maritime safety and management. The article studies the concept of ship Management company, combined with several special rectification activities of The State Department of transportation, use online survey technology to analyze the reason of the problem, clarifies the position of the ship management company and gives some suggestions for the risk control and development of the company.
Shielding improvement by multi-layer design

Experimental data are presented comparing the combined effectiveness of magnetic alloys and copper as single sheets and in two-, three- and five-layer composites. The two-layer structure shows a small but unmistakable increase in shielding factor, while the three- and five-layer composites increase effectiveness by as much as fifty percent. The increased shielding factor of multilayer designs is also predicted by Schellkunoff's surface impedance theory (1934). It is noted that, while shielding effectiveness can be further increased by the use of five, seven or more layers, the additional cost of such constructions probably precludes their selection over the more conventional three-layer copper-magnetic-copper high-performance clad shielding. <<ETX>>
α-ψ-contractive type mappings on quasi-metric spaces

We introduce and discuss several types of ? -? -contractive mappings on quasi-metric spaces. We obtain some fixed point theorems in this setting and present suitable examples to show the validity of our approach and results. Finally, we give a characterization of doubly Hausdorff right K-sequentially complete quasi-metric spaces in terms of ? -? -contractive type mappings having fixed point.
Numerical Analysis of Free Field under Horizontal Seismic Excitations

Based on Newmark-β gradual integration method and elastic-plastic mechanical theory, numerical analyses of the effects of soft soil depth and thickness on the characteristics of seismic response of free bank field with soft soil layers are conducted by using finite element program Midas/GTS. The numerical results show that the high frequency components of seismic excitations can be filtered and the low frequency components are amplified correspondingly when seismic waves are transmitted through the free bank field from the bedrock.
Analytical solutions in nonuniform multiconductor transmission line theory

The theory of nonuniform multiconductor transmission lines (NMTLs) is characterized by generalized telegrapher equations. Formally, these are straightforwardly solved, but an explicit construction of the solution turns out to be mathematically demanding. This paper discusses and reports on recently proposed reduction schemes that simplify the structure of the solution and make it suitable for direct evaluation. Applications of these results are described, as well as field theoretical extensions of the existing formalism.
TEN YEARS OF APPLICATION OF STOCHASTIC DUAL DYNAMIC PROGRAMMING IN OFFICIAL AND AGENT STUDIES IN BRAZIL - DESCRIPTION OF THE NEWAVE PROGRAM

The Brazilian generating system is hydro dominated and characterized by large reservoirs present- ing multi-year regulation capability, arranged in complex cascades over several river basins. For these reasons, the hydrothermal coordination in Brazil ranges from long term multi-year reservoir optimization to short term hourly dispatch. Since 1993, CEPEL, the Brazilian Elec- tric Energy Research Center started the implementation of stochastic dual dynamic programming based algorithms in a computational program called NEWAVE, to solve this large scale long term hydrothermal coordination problem for the Brazilian system. For 10 years now, the NEWAVE program has been intensively and ordinarily applied in official studies, comprising a set of five major electrical sector activities: (i) ten-year generation expansion plan, (ii) calculation of power plant assured energy (the maximum volume of energy that it is allowed to trade in long-term contracts); (iii) computation of figures of merit for public electrical energy buying auctions;. (iv) dispatching of hydro and thermal generation and energy interchanges in operation planning studies; and (v) calculation of spot prices in wholesale energy market. This papers outlines the status of NEWAVE methodological developments and present some examples of its practical applications.
Risk-based planner for asset management [of electric utilities]

Faced with multiple options for reinvestment in equipment maintenance, what is the best course of action to maximize reliability at minimum cost? The combination of engineering and financial analyses requires complex mathematical modeling; however, the software must be user-friendly to make the operation of the model simple. With this in mind, substantial effort has been put in developing a suitable decision-support tool to address the question of option selection. This article features the program called Risk-Based Asset Management (RiBAM) and its application in the reinvestment decision-making process.
Identifiability issues for rotationally invariant arrays

The ESPRIT algorithm provides a computationally efficient approach for direction of arrival (DOA) estimation in situations where the sensor array is composed of two identical translated subarrays. The subarrays need not be calibrated in order to obtain the DOA estimates. The problem of DOA estimation using sensor arrays composed of two identical, uncalibrated, and rotated subarrays is considered. It is shown that, unlike ESPRIT, such rotationally invariant arrays do not provide an identifiable parameterization of the problem. Unique DOA estimates are not possible without additional calibration information when more than one signal is presented. <<ETX>>
A 3.2 Gbps VCSEL driver implemented in 0.18μm CMOS

We report on the performance of a 3.2 Gb/s VCSEL driver implemented in foundry n-well 0. 18μm CMOS technology. The VCSEL driver utilizes a novel push-pull circuit topology that pushes and pulls modulation current into and out of the VCSEL cavity thus producing symmetric rising and falling edges. Using a commercial VCSEL with a threshold current of 1.2 mA and a slope efficiency of 0.3 mW/mA, the circuit was operated at 1.25, 2.5 and 3.2 Gb/s and produced 2.5 mW of average optical power.
100% efficient narrow-band acoustooptic tunable reflector using fiber Bragg grating

This paper reports a 100% efficient Bragg-grating-based acoustooptic superlattice modulator in a fiber whose diameter is reduced by HF etching. The acoustically induced reflections, which appear on both sides of the Bragg stop-band, are tunable by altering the acoustic frequency, and have bandwidths corresponding to weak versions of the permanent Bragg grating. These unique properties may lead to important applications in, e.g., reconfigurable wavelength division multiplexing, Q-switching, amplitude modulation, and frequency shifting.
What avionics engineers should know about pilots and automation

There has been great interest lately in automation issues, spurred partly by accidents and incidents attributed to automation factors, and partly by a recognition that automation related problems can be both highly subtle and very dangerous. One of the reasons underlying automation-related problems is the relatively indiscriminate application of automation based on technological availability rather than operator need. This has placed system operators in roles that are poorly suited to human capabilities. A more productive approach to automation and humans would recognize the need to maintain appropriate roles for the human operator, the need to match automation functionality to operator tasks, the need for the human interface to make automation functions highly visible to the operator, and the potential for operator over- and under-reliance on the automation.
PV-GIS: a web-based solar radiation database for the calculation of PV potential in Europe

Solar radiation is a key factor determining electricity produced by photovoltaic (PV) systems. This paper presents a solar radiation database of Europe developed in the geographical information system, and three interactive web applications providing an access to it. The database includes monthly and yearly average values of the global irradiation on horizontal and inclined surfaces, as well as climatic parameters needed for an assessment of the potential PV electricity generation (Linke atmospheric turbidity, the ratio of diffuse to global irradiation, an optimum inclination angle of modules to maximize energy yield). In the first web application, a user may browse radiation maps and query irradiation incident on a PV module for different inclination angles. The second application simulates daily profiles of irradiance for a chosen month and module inclination and orientation. The third web application estimates electricity generation for a chosen PV configuration. It also calculates optimal inclination and orientation of a PV module for a given location. The database and the applications are accessible at http://re.jrc. cec.ev. int/pvgis/pv/imaps/imaps.htm.
OEE Evaluation of a Paced Assembly Line through Different Calculation and Simulation Methods: A Case Study in the Pharmaceutical Environment

Modern production systems must guarantee high performance. Increasingly challenging international competition, budget reductions for the health sector and constant technological evolution are just three of the many aspects that drive pharmaceutical companies to continuously improve the productivity of their lines. The scientific literature has for many years been proposing calculation models for estimating the productivity of a machine. One of the most famous, and still used, is overall equipment effectiveness (OEE). This allows the calculation the valuable output considering the six ‘big losses’. The limitations of this approach are noticeable when considering a production line instead of a single machine. Numerous researchers have proposed alternative methods or changes in OEE, to be able to cover the widest spectrum of possible cases. In this study, we wanted to evaluate how such theoretical models related to OEE are actually able to represent the world of tight production flows or whether, in these cases, a more complex type of simulation should be preferred. To do this, we carried out a case study of a production line in the pharmaceutical industry, and the results showed that the simulation approach gives better results because of the peculiarities not considered by the theoretical models.
Exact outage probability of cognitive AF relaying with underlay spectrum sharing

The exact closed-form expression for the outage probability (OP) of cognitive radio dual-hop amplify-and-forward (AF) relay networks is derived. The tractable expression of the OP, given in the form of elementary functions, readily enables evaluating the effect of primary users on the secondary system performance. It has been shown that the use of AF relaying significantly improves the performance of cognitive radio networks compared to its direct transmission counterpart.
Influence of Dynamically Varying Inflow Rates on Clean Grain Elevator Yield Monitor Accuracy

Summary: The Yield Monitor Test Facility was used to evaluate the GreenStar® mass flow sensor in a 9600 clean grain elevator under dynamically varying inflow rates. It was found that the GreenStar® yield sensor accurately predicts (less than 4% error) accumulated mass (under dynamically varying step and ramp flow rates) within normal operating conditions of 4.2 to 16.9 kg/s (10 to 40 bu/min), and does a reasonable job of predicting flow at upper limits of 20kg/s. The yield sensor accurately followed X578 variable step flow rates while operating under 20 kg/s, but exhibited significant errors for flows above 20 kg/s. This was probably due to the fact that the GreenStar® was calibrated at 12.7 kg/s. The maximum error in accumulated mass for the variable step profile was less than 2%, while the average instantaneous flow error during steady state grain metering was estimated at 4.4% with a 3.4% standard deviation. Time averaging adjacent readings reduced the error to 3.2%. It was found that transient flow had maximum accumulated flow errors of approximately 5%, while oscillating flow had errors around 2.5%. This was due to the fact that the transient flow maintains flow at the extremity of the GreenStar® operation range (based on 12.7 kg/s calibration) for longer periods. The results from these test indicated that the GreenStar® mass flow sensor accurately predicted total accumulated mass flow across a broad range of dynamic inflow rates and demonstrated good instantaneous flow prediction. Additionally, two second time averaging of adjacent flow readings smoothed noise in the original signal with minimal loss of signal definition
Compact in-phase power divider integrated filtering response using spiral resonator

A compact in-phase power divider with filtering response is presented in this study. Spiral resonators are meant to realise compact size and bandpass-filtering response. To improve the frequency selectivity of the presented power divider, a source–load cross-coupling is introduced by placing input and output coupling lines. An in-phase power divider with passband-filtering response has been designed, fabricated and measured. The measured return loss and insertion loss of the fabricated power divider are 22 and 1.3 dB at 2.45 GHz, respectively. The 3 dB operating bandwidth of the fabricated power divider is 175 MHz. The total area of the fabricated power divider is 0. 15λ g × 0. 3λ g. The measured results verify the predicted attractive features.
Customers Involved Digital NPD Method Based on Integrated CAX Technology

A customer involved digital NPD method is addressed. This study extends new product development (NPD) to a new field; Customer Involved Digital New Product Development Method addressed in this paper is based on integrated application of customer interaction, customer needs elicitation, CAD, CAM, CAE technology. It makes RD process more quickly and more effectively compared with the traditional NPD method. This study finds that the more effort on pre-NDP process, the less likely it might encounter risk of failure. Thus, a better NPD performance can be achieved by customer involved digital NPD method (CIDNPD). A case study of scooter NDP is used to illustrate the new method. We believe that the proposed methodology will have a positive impact on the future new product development.
A Method of Detecting Hardware Trojans Based on Side-Channel Analysis

In recent years, integrated circuits subject to hardware Trojans attack in the design and manufacturing process, the security of chip and hardware security was threatened. Some detection methods of have been proposed, the most common of those methods is based on side-channel signal analysis, however, since the effect of process noise, considering only the unilateral information that is difficult to effectively distinguish the noise and Trojans circuit. In this paper, the method still based on side-channel signal, but it is a combination of power and delay which was called the power-delay product (PDP). The idea proposed is verified by the benchmark circuit iscas85, the experimental results show that this method can effectively improve detection probability.
Estimating Combined Errors Due to Propagation and Ephemeris and Their Effect on Time and Frequency Transfer

We now have a global network of timing centers with frequency standards having stabilities of a few parts in lOI4 which are monitoring the GPS. It has been shown that by taking differences of the connnonview time differences between two timing centers and between pairs of satellites, one can arrive at a statistically optimum estimate for a weighting factor for each common-view path. With this approach, GPS common-view measurement noise of a few parts in 1014 is achievable for an integration time of 1 day. Using the above weighting factors. this paper developes an algorithm for estimating a weighted linear error of the differential ephemeris plus propagation errors for each satellite. This can be done between any pair of timing centers which have receivers and clocks with adequate stability. Since most of the time transfer receivers operate at the L1 frequency (1.575 GHz), this technique reveals information regarding the accuracy of the ionospheric models broadcast at this frequency as part of the GPS data word. Once the individual satellite's differential propagation and ephemeris errors are estimated, the statistical properties of each can be combined to obtain a statistically weighted estimate of the common-view measurement variations limiting the comparison of the clocks between the two remote sites. Optimum statistical weighting yields a significantly better measurement noise than can be obtained from a simple average. For example, between NRC in Ottawa, Canada and NBS in Boulder, Colorad demonstrated stabilities of Ey(~) = 1 x T-~~~, where T is in day's, have been achieved. This is equivalent to a white time modulation noise of less than 1 ns sampled once per day. On the other hand, without proper care in the data processing errors can accumulate to several tens of nanoseconds in commonview time comparisons.
Synthetic Data Generation to Speed-up the Object Recognition Pipeline

This paper provides a methodology for the production of synthetic images for training neural networks to recognise shapes and objects. There are many scenarios in which it is difficult, expensive and even dangerous to produce a set of images that is satisfactory for the training of a neural network. The development of 3D modelling software has nowadays reached such a level of realism and ease of use that it seemed natural to explore this innovative path and to give an answer regarding the reliability of this method that bases the training of the neural network on synthetic images. The results obtained in the two proposed use cases, that of the recognition of a pictorial style and that of the recognition of migrants at sea, leads us to support the validity of the approach, provided that the work is conducted in a very scrupulous and rigorous manner, exploiting the full potential of the modelling software. The code produced, which automatically generates the transformations necessary for the data augmentation of each image, and the generation of random environmental conditions in the case of Blender and Unity3D software, is available under the GPL licence on GitHub. The results obtained lead us to affirm that through the good practices presented in the article, we have defined a simple, reliable, economic and safe method to feed the training phase of a neural network dedicated to the recognition of objects and features, to be applied to various contexts.
Cantonese Tone Perception by Postlingually Deaf Cochlear Implant Users

The purpose of this study was to determine whether postlingually deaf cochlear implant users are able to identify Cantonese tones. Seven subjects aged between 38 to 63 years old (duration of postoperative period between 23 to 68 months) were employed. Four of them used Nucleus 24-Channel cochlear implant system and two of them used Nucleus 22-Channel while the remaining one used Spectra 22. Listeners were asked to select between one out of two pictures after hearing the word /ji/ with one of six contrastive Cantonese tones in carrier sentence. The results showed that the percentage of correct responses for each contrast varied between 53% to 78%. An analysis of the data grouped by contrasts revealed that the HLML, HLJLL and HLJHR contrasts were identified above chance. Among the seven subjects, four of them performed above chance in the overall tonal contrasts. It suggests that some of the subjects could extract sufficient pitch information to identify Cantonese tones while some could not. Possible explanations for the results are made.