Miracle-dz/UniFAR-FTUs huggingface dataset:
High efficient walking of compass-like biped robots with foot rotation

This paper investigates the high efficient walking problem of a planar compass-like biped robot with massless feet. The walking manner with the stance foot allowed to rotate about the toe, is considered. A latch attached to the hip is introduced to lock the hip joint, which works when the hip joint retracts to a desired angle, and spring devices are equipped at the ankle joints to reduce the inputs of the ankles. After modeling the walking robot as a hybrid system with multiple continuous state spaces, a high efficient walking gait limit cycle is found using the method of Poincare shooting with the objective of minimizing the dimensionless specific mechanical cost of transport. Then, an event-based feedback control law is proposed to stabilize the high efficient walking gait. The validity of our control strategies is illustrated by a series of numerical simulations.
Direct-Conversion CMOS X-Ray Imager With  $5.6 ~\mu \text{m} \times 6.25~\mu \text{m}$  Pixels

We report a monolithic direct-conversion X-ray imager capable of detecting diagnostic level X-rays. The imager is constructed by combining a custom 32×32 CMOS four-transistor active pixel sensor (4T APS) array with an amorphous selenium photoconductive layer deposited on top of the array via a post processing step. A 4T APS with an explicit per-pixel integration capacitor is employed to increase the pixel dynamic range. Under dark conditions, an input-referred electronic noise of <;90 electrons (rms) is estimated based on measured noise data for a 40-ms integration time. The very first X-ray images of copper and stainless-steel objects are included to demonstrate the performance of what is, to the best of our knowledge, a direct-conversion X-ray imager with the smallest pixel pitch reported to date.
DEVERBAL NOUN COMPLEMENTATION RULES APPLIED TO SEMANTIC ROLE LABELING

This work presents a procedure of semantic role labeling in deverbal noun predications. The procedure avoids the problems related to the unavailability of robust computational resources for Portuguese by exploring the systematic correspondence between the argument structures of verbs and of their corresponding nominalizations, and by using the Web as a corpus in order to infer probabilistically the boundaries of the arguments and their grammatical relations in the verbal syntactic structure.
Dynamic smooth compressed quadtrees (Fullversion)

We introduce dynamic smooth (a.k.a. balanced) compressed quadtrees with worst-case constant time updates in constant dimensions. We distinguish two versions of the problem. First, we show that quadtrees as a space-division data structure can be made smooth and dynamic subject to split and merge operations on the quadtree cells. Second, we show that quadtrees used to store a set of points in R^d can be made smooth and dynamic subject to insertions and deletions of points. The second version uses the first but must additionally deal with compression and alignment of quadtree components. In both cases our updates take 2^{O(d log d)} time, except for the point location part in the second version which has a lower bound of Omega(log n); but if a pointer (finger) to the correct quadtree cell is given, the rest of the updates take worst-case constant time. Our result implies that several classic and recent results (ranging from ray tracing to planar point location) in computational geometry which use quadtrees can deal with arbitrary point sets on a real RAM pointer machine.
Industrial processing of canned beans

O feijao destaca-se no cenario mundial como uma leguminosa rica em proteinas e com alto valor nutricional, sendo estando entre uma das especies mais cultivadas em todo o mundo. Porem, observa-se diminuicao do consumo deste alimento devido a demanda de tempo no seu preparo domestico, sendo entao substituido na dieta. Uma alternativa que atende as demandas do consumidor moderno e o processamento industrial. O objetivo deste trabalho e fornecer uma revisao de literatura abordando informacoes sobre o processamento tipo enlatado em feijao. Atualmente, no Brasil, sao realizados poucos trabalhos dentro desta linha de pesquisa, visto que o maior enfoque e para a qualidade tecnologica dos graos para o consumo tradicional, na forma seca. Neste material sao apresentadas informacoes sobre alguns conceitos e detalhes do processamento industrial, das operacoes unitarias na producao e dos parâmetros de qualidade avaliados no feijao enlatado. Espera-se, contribuir com a cadeia produtiva do feijao brasileiro, aumentando o consumo e as demandas do processamento industrial, tanto em mercado interno quanto para futuras exportacoes do produto.
Silicon Photonic Integration Platform—Have We Found the Sweet Spot?

The current trend in silicon photonics towards higher levels of integration as well as the model of using CMOS foundries for fabrication are leading to a need for standardization of substrate parameters and fabrication processes. In particular, for several established research and development foundries that grant general access, silicon-on-insulator wafers with a silicon thickness of 220 nm have become the standard substrate for which devices and circuits have to be designed. In this study we investigate the role of silicon device layer thickness in design optimization of various components that need to be integrated in a typical optical transceiver, including both passive ones for routing, wavelength selection, and light coupling as well as active ones such as monolithic modulators and on-chip lasers produced by hybrid integration. We find that in all devices considered there is an advantage in using a silicon thickness larger than 220 nm, either for improved performance or for simplified fabrication processes and relaxed tolerances.
A survey on rank aware query processing techniques

Ranking is an important property that needs to be fully supported by current relational query engines. Given a set of objects for all functions F over P, an interesting problem is to compute the top ranked objects for all functions. Ranking queries (or top-k queries) are dominant in many emerging applications, e.g., similarity queries in multimedia databases, searching Web databases, and data mining. Top-k queries aim at providing only the top k query results, according to a user-specified ranking function, which in many cases is an aggregate of multiple criteria. In this survey we describe top-k processing techniques and show the implications of each dimension on the design of the underlying techniques.
Rock with me: the role of movement synchrony in infants' social and nonsocial choices.

Matching the timing of one's movements to the movements of others has been proposed to increase affiliation and prosociality. Although coordinated movements facilitate early social interactions, not much is known about the mechanisms and effects of movement synchrony throughout development. Two studies investigated 12-month-olds' (Study 1, N = 40) and 9-month-olds' (Study 2, N = 41) preferences for synchronous others in a social as opposed to a nonsocial context. It was found that movement synchrony exclusively guides infants' social choices at 12 months. In contrast, 9-month-olds did not show any preferences for synchronous movements in social or nonsocial contexts. Results suggest that movement synchrony is important in guiding infants' social preferences and its effects emerge toward the end of the 1st year of life.
Epidemiological Dynamics of a Bacterial Meningitis Outbreak in Two Districts in Northern Ghana

Background: The Northern region of Ghana experienced an outbreak of bacterial meningitis between December, 2015 and May, 2016 with majority of cases recorded in Bole and Sawla-Tuna-Kalba districts. The epidemiological features of this outbreak were explored in these two districts. Methods: Data on the meningitis outbreak that occurred in the Northern region of Ghana between December, 2015 and May, 2016 was obtained from the Ghana Health Service’s Department of Disease Surveillance. Specifically that on Sawla-Tuna-Kalba and Bole districts was extracted and analyzed. Results: Two different meningitis outbreaks occurred in two districts in Northern Region. Bole district had an outbreak due to S. pneumoniae while N. meningitids (N.m. W135) caused an outbreak in Sawla-Tuna-Kalba district. S.pneumoniae cases peaked earlier than N. meningitidis. The highest number of cases occurred in age groups 6-14 years followed by 15-44 years with deaths occurring in under 5 years and above 60 years. There was an association between outcome and age group, at a p value of 0.027. Conclusion: Bacterial meningitis due to S. pneumoniae is increasingly becoming a major cause of meningitis outbreaks in Ghana. The differential periods of onset of pneumococcus and meningococcus outbreaks suggest that climatic factors responsible for these two diseases may be different and therefore it is prudent for studies to be carried to define more specific weather conditions favoring the spread of these two diseases in Ghana. With the extreme age groups recording fatalities, there is the need to give children and the elderly more attention to mitigate the effects of any future outbreak.
Cumulative Meta-analysis of the Relationship Between Useful Field of View and Driving Performance in Older Adults: Current and Future Implications

Purpose. Driving is a complex behavior that requires the utilization of a wide range of individual abilities. Identifying assessments that not only capture individual differences, but also are related to older adults’ driving performance would be beneficial. This investigation examines the relationship between the Useful Field of View (UFOV) assessment and objective measures of retrospective or concurrent driving performance, including state-recorded accidents, on-road driving, and driving simulator performance. Method. The PubMed and PsycINFO databases were searched to retrieve eight studies that reported bivariate relationships between UFOV and these objective driving measures. Cumulative meta-analysis techniques were used to combine the effect sizes in an attempt to determine whether the strength of the relationship was stable across studies and to assess whether a sufficient number of studies have been conducted to validate the relationship between UFOV and driving performance. Results. A within-group homogeneity of effect sizes test revealed that the samples could be thought of as being drawn from the same population, Q [7] = 11.29, p (one-tailed) = 0.13. Therefore, the effect sizes of eight studies were combined for the present cumulative meta-analysis. The weighted mean effect size across the studies revealed a large effect (Cohen’s d = 0.945), with poorer UFOV performance associated with negative driving outcomes. This relationship was robust across multiple indices of driving performance and several research laboratories. Conclusions. This convergence of evidence across numerous studies using different methodologies confirms the importance of the UFOV assessment as a valid and reliable index of driving performance and safety. Recent prospective studies have confirmed a relationship between UFOV performance and future crashes, further supporting the use of this instrument as a potential screening measure for at-risk older drivers.
Vector modal solution of evanescent coupler

We present a vector modal solution for the evanescent coupler comprising an optical fiber and a slab waveguide. We identify the normal vector ridge modes of the device for different configurations. The dispersion characteristics and the power transmission properties of these modes are presented. Also, the effect of the proximity between the waveguides on the ridge modes is investigated.
Experimental analysis of conventional buck and boost converter with integrated dual output converter

In recent days, dc-dc power converters are gaining more attention in the power electronic research field. To meet the various level of voltage demand, single input and multiple output topologies (SIMO) are developed. Many such converter topologies are available under this category. Integrated Dual Output Converter (IDOC) is one of the single input multi output topologies. IDOC is a DC-DC power converter which performs both buck and boost operations at the same time with a single power supply. IDOC is derived from the conventional boost converter using couple of power switches. With the shoot through phenomenon both the switches in the IDOC can be connected in series and operated to obtain the boost and buck voltage simultaneously. In this paper, the basic operation of IDOC is presented and compared with conventional buck and boost converter. The hardware prototype model of IDOC with 100W is developed and tested. Also the experimental results are compared and verified with the simulation results. Also the performance comparison among buck, boost and IDOC converter is done and presented.
Retrospective analysis of the utility of multiparametric MRI for differentiating between benign and malignant breast lesions in women in China

Abstract We explored the utility of time-resolved angiography with interleaved stochastic trajectories dynamic contrast-enhanced magnetic resonance imaging (TWIST DCE-MRI), readout segmentation of long variable echo-trains diffusion-weighted magnetic resonance imaging- diffusion-weighted magnetic resonance imaging (RESOLVE-DWI), and echo-planar imaging- diffusion-weighted magnetic resonance imaging (EPI-DWI) for distinguishing between malignant and benign breast lesions. This retrospective analysis included female patients with breast lesions seen at a single center in China between January 2016 and April 2016. Patients were allocated to a benign or malignant group based on pathologic diagnosis. All patients received routine MRI, RESOLVE-DWI, EPI-DWI, and TWIST DCE-T1WI. Variables measured included quantitative parameters (Ktrans, Kep, and Ve), semiquantitative parameters (rate of contrast enhancement for contrast agent inflow [W-in], rate of contrast decay for contrast agent outflow [W-out], and time-to-peak enhancement after contrast agent injection [TTP]) and apparent diffusion coefficient (ADC) values for RESOLVE-DWI (ADCr) and EPI-DWI (ADCe). Receiver-operating characteristic (ROC) curve analysis was used to evaluate the diagnostic utility of each parameter for differentiating malignant from benign breast lesions. A total of 87 patients were included (benign, n = 20; malignant, n = 67). Compared with the benign group, the malignant group had significantly higher Ktrans, Kep and W-in and significantly lower W-out, TTP, ADCe, and ADCr (all P < .05); Ve was not significantly different between groups. RESOLVE-DWI was superior to conventional EPI-DWI at illustrating lesion boundary and morphology, while ADCr was significantly lower than ADCe in all patients. Kep, W-out, ADCr, and ADCe showed the highest diagnostic efficiency (based on AUC value) for differentiating between benign and malignant lesions. Combining 3 parameters (Kep, W-out, and ADCr) had a higher diagnostic efficiency (AUC, 0.965) than any individual parameter and distinguished between benign and malignant lesions with high sensitivity (91.0%), specificity (95.0%), and accuracy (91.9%). An index combining Kep, W-out, and ADCr could potentially be used for the differential diagnosis of breast lesions.
Contemporary Permanent Luting Agents Used in Dentistry: A Literature Review

Dental cements are widely used in dentistry. Base material, temporary filling material and luting agents can all have different clinical applications. Different types of cement have also been developed for various orthodontic and endodontic treatments. In literature it is still argued that there is not ideal cement answering all purposes yet, so different materials are required for the comprehensive patient treatments and it is not always that easy to make the best choice. The aim of this article is to provide a clinically relevant discussion of contemporary permanent luting agents, in order to enhance the dentist’s ability to make proper cementation choices and application. How to cite this article: Sumer E, Deger Y. Contemporary Permanent Luting Agents Used in Dentistry: A Literature Review. Int Dent Res 2011;1:26-31. Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.
Two-Stage Degradation of p-Type Polycrystalline Silicon Thin-Film Transistors Under Dynamic Positive Bias Temperature Stress

Two-stage degradation of p-type polycrystalline silicon thin-film transistors under dynamic positive bias temperature (PBT) stress is reported for the first time. ON-state current (ION) gradually increases in the first degradation stage while dramatically drops in the second degradation stage, which are, respectively, due to the channel length shortening effect, caused by electrons trapping into the gate oxide, and grain boundary potential barrier buildup, caused by dynamic hot-carrier-induced traps generation. The transition from the first to the second degradation stage is clarified, in which the pulse peak duration plays a key role. Longer pulse peak duration is preferred to suppress the dynamic PBT stress-induced degradation.
TÜRKİYE'DE İHRACATA DAYALI SANAYİLEŞME STRATEJİSİ UYGULAMALARI VE İMALAT SANAYİİ ÜZERİNDE ETKİNLİĞİ:NEDENSELLİK ANALİZİ (1990-2008)

Turkiye'de ithal ikamesi sanayilesme stratejisi terk edilerek, 1980 yilindan gunumuze ihracata dayali sanayilesme stratejisi uygulanmaktadir. Kuskusuz ki, imalat sanayii, gelismekte olan ulkeler icin kalkinma ile es anlamli olan sanayilesmenin saglanmasinda buyuk oneme sahiptir. Rekabetci ustunlukler dogrultusunda ihracat yapisini gelistirerek ekonomik buyumenin hedeflendigi Turkiye, 1990'lardan itibaren serbestlesme surecini buyuk olcude saglamis ve sanayilesmeye yonelik onemli politikalar uygulamistir. Bu calismada, Turk imalat sanayii kapsaminda ihracata dayali sanayilesme stratejisinin etkinligi incelenmektedir. Toda-Yamamoto nedensellik yaklasimi kullanilarak yapilan analiz 1990–2008 donemini kapsamaktadir. Analiz sonuclari imalat sanayii ihracatinin ve GSYIH'nin ara ve yatirim mallari ithalatina bagimli oldugunu ortaya koymaktadir.
A New Perspective on Equity Theory: The Equity Sensitivity Construct

Equity theory proposes that individuals who perceive themselves as either underrewarded or overrewarded will experience distress, and that this distress leads to efforts to restore equity. This paper describes a new construct, equity sensitivity, and proposes that reactions to equity/inequity are a function of an individual's preferences for different outcome/input ratios. The construct is delineated through a series of propositions, and implications for equity research in organizations are discussed.
Review of Hierarchical Routing Protocols in Wireless Sensor Networks

The advancement in the technology has made the availability of small and low-cost sensor nodes with many features. These sensors have capability of sensing various types of physical and environmental conditions and wireless communication which makes application of them in various areas. In wireless sensor network, the sensor nodes have a limited transmission range and their energy resources are also limited. The transmission paths of the WSN are maintained by the routing protocols and they are responsible for reliable communication between nodes in the network. A survey of hierarchical routing protocols is given with their pros and cons.
The Effect of Luminance Condition on Form, Form-from-Motion and Motion Perception

This study investigated to what extent rod-dominated vision affects motion and form perception accuracy. Twenty-nine healthy subjects took part in the experiment. Form coherence (FC), form-from-motion (FFM) and motion coherence (MC) tests were assessed in low-light (rod-dominated vision) and high-light (cone-dominated vision) conditions. For each test we determined the accuracy by evaluating the correct detection obtained in five levels of coherence (corresponding to different signal-to-noise ratio). The results evidenced that motion, form and form-from-motion accuracy decreased in low-light condition. Furthermore, light condition effect was differently mediated by noise according to the type of task. The motion perception is affected only at high noise levels, while form discrimination was globally affected at all the levels, also in absence of noise, both for static (FC) and dynamic stimuli (FFM). We conclude that in rod-dominated vision form-from-motion perception is more defected than form and motion perception. We hypothesized that our results are due to the integration between M and P cells in FFM test increases the form perception accuracy in high-light condition but this advantage is completely lost during low-light condition, when the rods need to integrate information both from M and P cells.
Multi-mode quasi-Z-source series resonant DC/DC converter for wide input voltage range applications

This paper examines the quasi-Z-source series resonant DC/DC converter as a candidate topology for the PV module integrated converter (MIC) with an extended input voltage regulation range. The converter features multi-mode operation by combining the shoot-through pulse-width modulation and ordinary phase-shift modulation to realize the boost and buck operating modes, respectively. Our experiments confirmed that the proposed MIC is capable of ensuring the ripple-free output voltage of 400 V within the input voltage range of 10.60 V. In contrast to the traditional series resonant converter, the MIC proposed is characterized by fixed-frequency operation over the entire range of input voltage variations. It requires only generic semiconductor devices and thus is a cost-effective solution.
ANALYSIS OF GROUNDING ACCIDENTS CAUSED BY HUMAN ERROR

Despite modern bridge equipment, new technologies, and improved safety measures, maritime accidents still occur, and an analysis of their causes is essential in preventing future accidents. Ship groundings are one of the more frequent types of accidents encountered, and this study examines the maritime accident reports issued for grounded ships between 1993 and 2011. These were sourced using the International Maritime Organization's Global Integrated Shipping Information System and the reports published by the countries and relevant institutions that investigated the accidents. The grounding accidents are analysed using the Analytic Hierarchy Process, and the objective of this study is to act as an advisory paper on the prevention of grounding accidents involving human error. The results suggest that the most significant causes of these types of accidents are, lack of communication and coordination in Bridge Resource Management, position-fixing application errors, lookout errors, interpretation errors, use of improper charts, inefficient use of bridge navigation equipment, and fatigue. It is suggested that providing more education and training opportunities to seafarers, promoting widespread use on board of Electronic Chart Display and Information Systems, and improving seafarers' working hours and rest breaks would help to reduce grounding accidents significantly.