Miracle-dz/UniFAR-FTUs huggingface dataset:
PosePP: 6D Pose Estimation of Poultry Pieces in a Cluttered Bin

Pose estimation of deformable natural food products is challenging due to the large variation in shape and sizes among objects. This is especially true for bin picking, which additionally involves clutter and occlusion. This paper proposes a novel modular algorithm for 6D pose estimation of chicken legs in a cluttered bin picking scenario using an RGB and depth (RGB-D) image. We use a Mask R-CNN implementation for the instance segmentation of objects, that produces region-of-interest (ROI) proposals and simultaneously predicts intermediate mask representations of the objects. The proposed 6D pose estimation algorithm uses principal component analysis (PCA) utilizing the output mask from Mask R-CNN and the depth image of the objects. The algorithm can detect and classify fully visible pieces with a mAP@0.5-0.95 of 0.93. The average error of position of the chicken legs was measured at 3 mm and the rotation error of chicken legs was estimated with an error of 1. 33 ± 1.31 degrees. Overall, the algorithm could correctly estimate principal axes for 89% of the cases. Experimentally, we show that the proposed algorithm can detect and estimate the pose of the chicken legs.
Conformal symmetry and quantum localization in space-time

The classical procedures which define the relativistic notion of space‐time can be implemented in the framework of Quantum Field Theory. Only relying on the conformal symmetries of field propagation, time‐frequency transfer and localization lead to the definition of time‐frequency references and positions in space‐time as quantum observables. Quantum positions have a non vanishing commutator identifying with spin, both observables characterizing quantum localization in space‐time. Frame transformations to accelerated frames differ from their classical counterparts. Conformal symmetry nevertheless allows to extend the covariance rules underlying the formalism of general relativity under an algebraic form suiting the quantum framework.
Impact of home- and destination charging on the geographical and temporal distribution of electric vehicle charging load

In this paper, we analyse how a shift from home charging to destination charging impacts the charging demand, based on data from a regional transport model and results from an EV survey. The impact and flexibility potential from EV charging depends on where chargers are located and how they are used. Since home charging and destination charging have different characteristics, it is necessary to analyse how the combination of home- and destination charging impact the total charging demand. To address this, we perform a case study for Western Norway, which is divided geographically into 2570 zones. The charging demand is distributed to the zones in two charging scenarios. The results show that more destination charging will reduce the load in many residential areas, while the demand increases in zones that contain large workplaces, malls, universities and hospitals. Moreover, it is found that 40% of the EV charging demand is from work-related travels. Thus, there is a potential for more workplace charging than what is the current situation according to the EV survey results.
A 4.7GHz Synchronized-Multi-Reference PLL with In-Band Phase Noise Lower than Reference Phase $\text{Noise +20}\text{logN}_{\mathrm{d}\mathrm{i}\mathrm{v}}$

This paper presents a PLL using synchronized multiple references with in-band phase noise (PN) lower than the conventional theoretical limit of reference phase $\text{noise+} 20\text{logN}_{\mathrm{d}\mathrm{i}\mathrm{v}}$. The proposed technique provides design flexibility to alleviate the jitter-power trade-off in PLL. Realized in 65-nm CMOS, the prototype achieves in-band PN 1.7-dB lower than the conventional theoretical limit, with four synchronized references. The proposed PLL can be configured in a single reference mode achieving 0.54-ps integrated jitter. In the contrast, the proposed PLL using four synchronized references achieves 0.35-ps integrated jitter.
Neuronal intermittent synchronization enhanced by astrocytes

In this paper, a study was presented how the interaction of slow modulating astrocytic signaling on fast synaptic transmission between neurons controls fluctuations in the network of hippocampal interneurons that receive input signals from pyramidal cells. The work demonstrates that astrocytic control of signal transmission between neurons improves the synchronization of oscillations and expands the area of synchronization of oscillations in the found parameters of synaptic conduction between synapses of interneurons. The amplification of synaptic transmission caused by astrocytes significantly increases the synchronization of network oscillations in a wide range of parameters of the mathematical model.
Critical Phenomena in Non-spherically Symmetric Scalar Bubble Collapse

We investigate numerically the critical behaviour which occurs in the collapse of both spherically symmetric and asymmetric scalar field bubbles with full general relativity. We use a minimally coupled scalar field subject to a "double well" interaction potential, with the bubble wall spanning the barrier between two degenerate minima. We find that the spherically symmetric case exhibits Type 2 critical behaviour with the critical index consistent with a value of gamma = 0.37 as expected. In the asymmetric case, we find that again our results are consistent with a value of gamma = 0.37 for the dominant unstable mode. We do not see strong evidence of echoing in the solutions, which could be due to the fact that the coordinates are not well adapted to the echoing behaviour, or due to being still too far from the critical point to properly observe the critical solution.
Analysis of Multilink in IEEE 802.11be

Multilink (ML) is a key feature in 802.11be, the latest amendment of 802.11 (commonly known as WiFi). It allows an 802.11 device to transmit and receive data on more than one dynamically selected links, the selection of links being based on the instantaneous availability of links, their interference profile, supported data rates, etc. ML is expected to significantly improve both throughput and latency in 802.11, not only in congestion-free channels but also in moderate to heavily congested channels. This article begins by providing an overview of ML in 802.11be, including the different variants of ML. Next, it discusses the expected performance of the variants of ML relative to legacy 802.11. Finally, it analyzes simulation-based evaluations of ML across a range of link configurations and environments.
From Theory to Practice: Towards an OSINT Framework to Mitigate Arabic Social Cyber Attacks

Ongoing research indicates the types of issues that need to be considered by a social cybersecurity researcher or practitioner. This study investigates the existing research on social cyber security on Arabic social media. It suggests the need to consider socio-political issues when presenting computational social media studies. We investigate the scope of social cyberattacks in Arabic. We show the need for new open-source intelligence (OSINT) framework to identify disinformation, bots, trolls, cyborgs, and memes. Recent studies have found that such attacks are spreading in 25 different languages including Arabic; some of these have caused injury and even death. We provide a comprehensive requirement analysis for developing open-source intelligence systems to detect social cyberattacks in Arabic. We show that while there are many OSINT Systems (OSINTs) to mitigate such attacks in English, systems needed to mitigate such attacks in other languages such as Arabic are still limited.
Angular correlations in gluon production at high energy

We present a general, model independent argument demonstrating that gluons produced in high energy hadronic collision are necessarily correlated in rapidity and also in the emission angle. The strength of the correlation depends on the process and on the structure/model of the colliding particles. In particular we argue that it is strongly affected (and underestimated) by factorized approximations frequently used to quantify the effect.
DISSIPATION AND DISPERSION APPROXIMATION TO HYDRODYNAMICAL EQUATIONS AND ASYMPTOTIC LIMIT

The compressible Euler equations with dissipation and/or dispersion correction are widely used in the area of applied sciences, for instance, plasma physics, charge transport in semiconductor devices, astrophysics, geophysics, etc. We consider the compressible Euler equation with density-dependent (degenerate) viscosities and capillarity, and investigate the global existence of weak solutions and asymptotic limit.
Loyola eCommons Loyola eCommons Transitions into Higher Education Transitions into Higher Education

ways whether the of mediates the link between social media use and negative outcomes, and if such relations di ﬀ er according to levels of social connectedness and social comparison. developmental trajectories of psychological well-being and ill-being, and interventions that promote positive adjustment in and focused on college student mental health, a series of meta-analyses of mental health prevention and promotion programs for college students. research interests include the role of gender and sexual orientation in well-being, technology-based interventions, mindfulness, depression, and the transition to parenthood.
A Revisit of the Relation between Central Bank Independence and Inﬂation

Conventional wisdom argues that the relation between central bank independence (CBI) and inflation is negative. However, empirical studies based upon regressing inflation rates on CBI tend to reject this hypothesis and show that there is no negative relationship. This article investigates the effect of CBI on inflation by quantile regression. The empirical result shows that the relation could be negative or positive for different quantiles of inflation. Quantile regression provides a method for investigating the relation completely between CBI and inflation.
Context Analysis of Continued Citation of Retracted Manuscripts Published in Anesthesiology Journals

The continued citation of retracted publications from the medical literature is a well-known and persistent problem. We describe the contexts of ongoing citations to manuscripts that have been retracted from a selection of anesthesiology journals. We also examine how bibliographic databases and publisher websites document the retracted status of these manuscripts. The authors performed an analysis of retracted publications from anesthesiology journals using the Retraction Watch database. We then examined how the retraction information was displayed on bibliographic databases, search engines, and publisher websites. The primary outcome was the context of continued citation after retraction of flawed publications within the specialty of anesthesiology. Secondary outcomes included comparison of the documentation, bibliographic databases, search engines, and publisher websites used in identifying the retracted status of these publications and provision of access to the respective retraction notices. A total of 245 original publications were retracted over a 28-year period from 9 anesthesiology journals. PubMed, compared to the other databases and search engines, was the most consistent (98.8%) in documenting the retracted status of the publications examined, as well as providing a direct link to the retraction notice. From the 211 publications retracted before January 2020, there were 1307 postretraction citations accessed from Scopus. The median number of postretraction citations was 3.5 (range, 0–88, with at least 1 citation in 164 publications) in Scopus. Of the postretraction citations, 80% affirmed the validity of the retracted publications, while only 5.2% of citations acknowledged the retraction or misconduct. In 10.2% of the citations from original research studies, retracted manuscripts appeared to influence the decision to pursue or the methods used in subsequent original research studies. The frequency of citation of the 15 most cited retracted publications declined in a similar pattern during the 10 years after retraction. Citation of manuscripts retracted from anesthesiology journals remains a common occurrence. Technological innovations and application of standards for handling retracted publications, as suggested by coalitions of researchers across the spectrum of scientific investigation, may serve to reduce the persistence of this error.
Nuclear spin physics in quantum dots: an optical investigation

The mesoscopic spin system formed by the 10E4-10E6 nuclear spins in a semiconductor quantum dot offers a unique setting for the study of many-body spin physics in the condensed matter. The dynamics of this system and its coupling to electron spins is fundamentally different from its bulk counter-part as well as that of atoms due to increased fluctuations that result from reduced dimensions. In recent years, the interest in studying quantum dot nuclear spin systems and their coupling to confined electron spins has been fueled by its direct implication for possible applications of such systems in quantum information processing as well as by the fascinating nonlinear (quantum-)dynamics of the coupled electron-nuclear spin system. In this article, we review experimental work performed over the last decades in studying this mesoscopic,coupled electron-nuclear spin system and discuss how optical addressing of electron spins can be exploited to manipulate and read-out quantum dot nuclei. We discuss how such techniques have been applied in quantum dots to efficiently establish a non-zero mean nuclear spin polarization and, most recently, were used to reduce fluctuations of the average quantum dot nuclear spin orientation. Both results in turn have important implications for the preservation of electron spin coherence in quantum dots, which we discuss. We conclude by speculating how this recently gained understanding of the quantum dot nuclear spin system could in the future enable experimental observation of quantum-mechanical signatures or possible collective behavior of mesoscopic nuclear spin ensembles.
Robust H/sub /spl infin// observers for Lipschitz nonlinear discrete-time systems with time delay

Issues of observer design for a class of Lipschitz nonlinear discrete-time systems with time-delay and disturbance input are addressed, where the Lipschitz condition is expressed in a componentwise rather than aggregated manner. It has been shown that both full-order and reduced-order robust H infin observers can be obtained by means of the same convex optimisation procedure with minimisation of the disturbance attenuation upper bound gamma>0. It is also shown that for a prescribed H infin -norm upper bound gamma>0, the tolerable Lipschitz bounds can be obtained by another convex optimisation procedure. A numerical example is presented to show the effectiveness of the developed approach
New potential field functions for motion planning and posture control of 1-trailer systems

This paper presents a set of new artificial potential field functions that improves upon, in general, the motion planning and posture control, with theoretically guaranteed point and posture stabilities, convergence and collision avoidance properties of 1-trailer systems in a priori known environment. We basically design and inject two new concepts; ghost walls and the distance optimization technique (DOT) to strengthen point and posture stabilities, in the sense of Lyapunov, of our dynamical model. This new combination of techniques emerges as a convenient mechanism for obtaining feasible orientations at the target positions with an overall reduction in the complexity of the navigation laws. The effectiveness of the proposed control laws were demonstrated via simulations of the two traffic scenarios.
Pre-edges in oxygen (1s) x-ray absorption spectra: A spectral indicator for electron hole depletion and transport blocking in iron perovskites

The eg↑/(t2g↓+eg↓) band ratio in cation-substituted La–Fe oxides is identified in O (1s) x-ray absorption spectra as a linear spectral indicator for conducting electron holes. The t2g↓ and eg↓ bands act as a conductivity inhibitor by ferromagnetic double exchange coupling on the eg↑ electron. Disorder induced by substitution appears to modulate the hole conduction such that an exponential relation is found between the conductivity and the eg↑/(t2g↓+eg↓) ratio and hole concentration. The quantitative correlation of conductivity and x-ray absorption spectra from heterovalent-substituted LaFeO3 lets substitution-driven metal insulator transitions appear in a new light.
String in Horava-Lifshitz gravity

We generalize recent analysis of the dynamics of point particle in Hoyrava- Lifshitz background to the case of string probe when we replace the Hamiltonian constraint of the Polyakov string with the constraint that breaks Lorentz invariance of target space- time. Then we find corresponding Lagrangian and argue that the world-sheet theory is invariant under foliation preserving diffeomorphism. Finally we discuss the Hamiltonian dynamics and show that this is well defined on condition that the world-sheet lapse function obeys the projectability condition.
Drying kinetics and the effect of blanching pretreatment in the physical characteristics of the dehydrated banana

The aim of this study was to evaluate and select the drying kinetic model of thin-layer drying of banana slices and the effect of blanching pretreatment on color. In order, 16 semi-theoretical and/or empirical models were applied to the experimental data and compared according their coefficients of determination (R 2 ), sum squared errors (SSE), and root mean square error (RMSE), which were predicted by non-linear regression analysis. The drying kinetics of banana slices were obtained at 50 °C, 60 °C and 70 °C for 630 min. The thermal blanching treatment effect was carried out on samples subjected to drying at 50 and 60 °C. Chromatic characterization and shrinkage analysis were performed. Among the thin-layer drying models considered to determine the kinetic drying parameters, the semi-theorical Two-term model gave the best fit for all drying conditions. Effective moisture diffusivity varied from 8.25 × 10 −11 m 2 s -1 to 2.26 × 10 −10 m 2 s -1 over the temperature range of the study. The increase in temperature led to a 60% average volume reduction. For color, the parameters L* and b* decreased, and a* increased with the temperature increase, and samples blanched and dried at 50 °C were similar to the fresh sample for lightness. O objetivo deste estudo foi estimar e selecionar o modelo cinético de secagem em camada fina de fatias de banana e o efeito de pré-tratamento de branqueamento na cor. Para isso, 16 modelos semi-teóricos e /ou empíricos foram aplicados aos dados experimentais e comparados de acordo com seus coeficientes de determinação (R 2 ), erros ao quadrado da soma (SSE) e erro quadrático médio da raiz (RMSE), que foram previstos por análise de regressão não linear. A cinética de secagem das fatias de banana foi obtida a 50 °C, 60 °C e 70 °C por 630 min. O tratamento térmico de branqueamento foi realizado nas amostras submetidas a secagem a 50 °C e 60 °C. Caracterização cromática e análise de encolhimento foram realizadas. Entre os modelos de secagem de camada fina considerados para determinar os parâmetros de secagem cinéticos, o modelo semi-teórico Two term apresentou o melhor ajuste para todas as condições de secagem. A difusividade efetiva da umidade variou de 8,25 × 10 -11 m 2 s -1 a 2,26 × 10 -10 m 2 s -1 na faixa de temperatura do estudo. O aumento da temperatura levou a uma redução de volume médio de 60%. Para a cor, os parâmetros L* e b* diminuíram e a* aumentaram
Multimodal Summarization Ph.D. Thesis Proposal

Automatic summarization is one of the basic tasks both in Natural Language Processing – text summarization – and in Computer Vision – video summarization. Multimodal summarization builds a bridge between those two fields. The idea of multimodal summary is a rather flexible one. Depending on the types of input (and output) modalities, custom modeling and evaluation techniques are required. In this thesis we focus on a text-centric multimodal summarization, requiring the textual modality to be present both in the input and in the summary. We present our results regarding the multi-modal feature extraction, task-specific pre-training and intra-video similarities. We propose a human evaluation framework for assessing the multimodal summary quality. We sketch our future research plans regarding the automatic evaluation techniques for multimodal output.
CHANCEN UND HINDERUNGSGRÜNDE EINER URBANEN MOBILITÄTSPLATTFORM AUS ANWENDERSICHT

In diesem Beitrag wird untersucht, welche Chancen und Hinderungsgründe der Nutzung einer integrierten Mobilitätsplattform aus Sicht von Anwendern bestehen. Hierfür wurde eine qualitative Studie in Form von Tiefeninterviews durchgeführt. Die Ergebnisse zeigen, dass Vorteile einer integrierten Mobilitätsplattform vor allem in einer effizienten Informationsbeschaffung hinsichtlich verfügbarer Verkehrsmittel sowie deren Buchung gesehen werden. Wichtigste Hemmschwelle stellt die Zusammenstellung des Angebots an Mobilitätsdienstleistungen auf der integrierten Mobilitätsplattform dar. Wird dieses als unvollständig angesehen, beispielsweise aufgrund von nicht integrierter Intermodalität oder fehlenden, vom Anwender präferierten Anbietern, ist die Vorteilhaftigkeit der Nutzung einer integrierten Mobilitätsplattform nicht gegeben.
Energy flow lines and the spot of Poisson–Arago

We show how energy flow lines answer the question about diffraction phenomena posed in 1818 by the French Academy: “Deduce by mathematical induction the movements of the rays during their crossing near the bodies. ” The use of energy flow lines provides a complementary answer to Fresnel’s wave theory of light. A numerical simulation of the energy flow lines shows that they can reach the bright spot of Poisson–Arago in the shadow center of a circular opaque disk. For a monochromatic wave in vacuum, these energy flow lines correspond to the diffracted rays of Newton’s Opticks.
Novel Natural Cellulosic Fiber from Lotus Stem: Structure and Performance Characterization

ABSTRACT The systematic exploration of the application prospects of lotus stem fibers (LSFs) in natural composites is significantly important for the development of green, lightweight, functional biomass materials and products. In this study, the physical and chemical properties, micro/nano structures, micromechanical characteristics, cellulose crystallinity, and thermal stability of LSFs were systematically explored. The density, microstructure, and nanoindentation analyses revealed that the LSF is a lightweight natural fiber with a high modulus (11.2–11.7 GPa) and a good hardness (0.41–0.57 GPa). The transmission electron microscopy analysis indicated the existence of four types of sclerenchyma cells in a gradient distribution in the epidermis and exodermis of the LS. The chemical analysis, X-ray diffraction, and Fourier transform infrared spectroscopy indicated that the outer-layer LSFs have a high cellulose content (44.73%), high relative crystallinity index (49.2%) of cellulose, and small cellulose crystallite size (2.2 nm). As a result, these LSFs possess good mechanical properties.