Miracle-dz/UniFAR-FTUs huggingface dataset:
Region of interest coding in jpeg2000 for interactive client/server applications

An approach allowing an efficient decoding of region of interest of an already encoded image without need for a complete decoding/encoding process is discussed.The basic method is compatible with the wavelet compression scheme adopted by the jpeg2000 standard and is adopted in a previous verification model.This technique is of special value to the interactive client/server applications linked through narrowband networks in which the client can request the server to adjust more efficiently the transmission of the desired information at little processing cost.
Software Package For The Numerical SimulationOf Coupled Field Problems

In this paper, the finite-element/boundary-element program CAPA [1] is presented, which has been developed by the authors during the last decade. With this software environment we are able to model quite different types of transducers which mostly risk for the numerical solution of a multifield problem, such as coupled electric-mechanical fields or magnetic-mechanical fields. Practical applications of an ultrasound array antenna, a capacitive acceleration sensor and an electrodynamic loudspeaker will demonstrate the applicability of the developed software.
An evaluation of adaptive robot control via velocity estimated feedback

This paper reviews and investigates the method proposed by Canudas De Wit and Fixot [1] for nonlinear output feedback adaptive control for robot manipulators. The theoretical concepts are analyzed and the critical assumptions that are made are clearly elucidated. Difficulties within the theoretical developments are noted and highlighted. Further difficulties associated with the design synthesis are illustrated. Simulation of a robot manipulator is used to demonstrate the theoretical difficulties and the practical issues.
A KEY BASED DATA SHARING PROTOCOL FOR SECURE INTER GROUP TRANSFERS

Storing data on remote cloud storage makes the maintenance affordable by data owners. The reliability and trustworthiness of these remote storage locations is the main concern for data owners and cloud service providers. When multiple data owners are involved, the aspects of membership and data sharing need to be addressed. In this paper the authors proposed efficient multi owner data sharing technique over cloud storage. The proposed scheme provides privacy and complexity while handling the data sharing over cloud. The proposed technique works with improved Shamir’s secret sharing group key mechanism. In this technique data can be uploaded in to the server after the encryption of the content by the secret group key. When new member joined in the group, new granted users can directly decrypt data files uploaded without contacting with data owners.
Multi-Pattern Matching Engine Based on Bloom Filter

By using Bloom filter, a multi-pattern matching engine suitable for hardware implementation was designed. The suspicious strings are picked up by the Bloom filter engine, and then sent to a bit-split state machine for verification. As a solution for speed-mismatching, a pipeline structure was purposed, which enabled the filter engine and the state machine to process strings in parallel to achieve a higher throughput. In addition, by using some optimal methods such as threshold for rules, the resource consumption is reduced and the scalability is improved while preserving the desired speed of original scheme.
New syntheses of cobalt ferrite particles in the range 2-5 nm : Comparison of the magnetic properties of the nanosized particles in dispersed fluid or in powder form

The size of cobalt ferrite particles from 2 to 5 nm is controlled by the reactant concentration in oil-in-water micelles. It is possible to obtain the particles either suspended in the solvent to form ferrofluid or in dry powder. When particles are isolated in a fluid, the interactions between particles are small. The magnetic size is similar to that determined by TEM. The reduced susceptibility increases progressively with the size of the particles and does not reach a plateau. With dry powder made of nanosized particles, the magnetic size is higher than that observed by TEM. Likewise, the reduced susceptibility strongly increases with increasing the particle size to reach a plateau for an average size equal to 3 nm. These are explained by the increase in the attractive interactions between particles. By heating the powder, the reduced remanence, Mr/Ms, and the coercivity, Hc, increase with the increase in annealing temperature. This is attributed to the increase in the particle size and to the release o.
New Variable Passive-Compliant Element Design for Quadruped Adaptation to Stiffness-Varying Terrain

This paper presents the design of a novel variable passive-compliant (VPC) element utilized as a lower-leg implant of a fully electrically driven quadruped robot. It is designed as a slider-piston mechanism which ensures that the force produced during a foot-ground contact is directly perpendicular to the contact surface of an actuated revolute spring. In this way, by altering the stiffness of quadruped legs in a closed-loop manner, the VPC element enables the quadruped robot to adapt to varying terrain characteristics, ensuring a constant hopping frequency over a wide range of terrain-stiffness variations. The designed VPC element and its beneficial characteristics are described in detail. Mathematical relations are formulated that help to describe the influence of the VPC element during vertical hopping of a quadruped robot. The properties of the quadruped research platform with integrated VPC element were verified in simulation and through experiments.
Efficient Short Certificate-Based Signature Scheme

Aiming at the construction problems of the efficient certificate-based signature scheme,based on the computational Diffie-Hellman assumption,an efficient short Certificate-Base signature scheme is proposed with provable security under the random oracle model.Moreover,compared with the available provable security certificate-based signature schemes,this scheme is optimal about the efficiency and the length of signature.
The three point function in Liouville and $\mathcal{N}=1$ Super Liouville Theory

In this dissertation we present some basic features about Liouville and $\mathcal{N}=1$ Super Liouville Theory, and focus in the computation of their three point functions. Additionally, we include an introduction to Conformal Field Theories (CFT) and Supersymmetry, which are the basic tools of the present research.
Event Sequencing Annotation with TIE-ML

TIE-ML (Temporal Information Event Markup Language) first proposed by Cavar et al. (2021) provides a radically simplified temporal annotation schema for event sequencing and clause level temporal properties even in complex sentences. TIE-ML facilitates rapid annotation of essential tense features at the clause level by labeling simple or periphrastic tense properties, as well as scope relations between clauses, and temporal interpretation at the sentence level. This paper presents the first annotation samples and empirical results. The application of the TIE-ML strategy on the sentences in the Penn Treebank (Marcus et al., 1993) and other non-English language data is discussed in detail. The motivation, insights, and future directions for TIE-ML are discussed, too. The aim is to develop a more efficient annotation strategy and a formalism for clause-level tense and aspect labeling, event sequencing, and tense scope relations that boosts the productivity of tense and event-level corpus annotation. The central goal is to facilitate the production of large data sets for machine learning and quantitative linguistic studies of intra- and cross-linguistic semantic properties of temporal and event logic.
Threshold Access Control Scheme Based on Quantifying Permission

Secret protection is studied after introducing the quantifying permission idea in the view of access control. Meta-Permission is derived from the view of 憅uality? and 憅uantity? in philosophy. Compared with traditional cognition and permission used in access control, it comprehensively and deeply reflects the essence of permission. Combining with the threshold idea and RBAC, a threshold access control scheme based on quantifying permission is proposed. This scheme is applicable as widely as secret-sharing scheme, and shares the same function in protecting secret. Furthermore, it has some distinct advantages such as no relation in knowledge between the secret pieces hold by participants and the protective secret target, the ability for expressing the difference among participants? trustworthiness, and the low complexity in computing.
A REVIEW OF ROUTING PROTOCOLS FOR MOBILE AD HOC NETWORKS

A MANET(mobile ad-hoc network) is an autonomous infrastructureless network system of mobile hosts which are connected with each other via wireless links. The goal of such a MANET is to instantly deploy a powerful network communication system with robustness to provide efficient services for data and multimedia applications. Efficient routes must be created in order to support communications between mobile hosts. In this paper, the progress of the routing technologies is surveyed, and various routing protocols are described and evaluated, which cover most types of MANET routing protocols.
Low power current mode multi-valued logic interconnect for high speed interchip communications

A new GaAs current mode (CM) chip-to-chip interconnection circuit is presented that provides high signal transfer speed with a 50 /spl Omega/ active termination and reduced input voltage swing. The power dissipation is shown to be 1/8 of an ECL I/O. The ternary logic version of it can reduce wiring by half and eliminate clock skew problems while still keeping the low power dissipation.
Directed Information and Its Biomedical Applications

The foundation of Information theory by C. E. Shannon is the entropic measures to quantize the abstract concept of information in random variables. When the interest is to study the relationships among multiple random processes, directed information introduced by Massey in 1990 extends such entropic measures to study the direction of information flow among the random processes, thereafter enabling the causality inference. Theoretically, directed information is defined on joint or conditional probability distributions of two random processes. In practice, with observed time series data, the estimation of directed information will be dependent on accurate estimates of joint probability distribution functions of random processes. We explore existing directed information estimators, generally based on Context Tree Weighting method and general asymptotic equipartition property, to infer the directed interactive relationships among involved components in neural activity mathematically modeled on Poisson process. Outcome validates causality relationship among a set of neurons. Although challenges remain, particularly finding computational efficient way to distinguish indirect relationship from direct interaction, estimation of directed information can effectively dig out causality among network.
Binding energy of the X (3872 ) at unphysical pion masses

Chiral extrapolation of the $X(3872)$ binding energy is investigated using the modified Weinberg formulation of chiral effective field theory for the $D \bar{D}^*$ scattering. Given its explicit renormalisability, this approach is particularly useful to explore the interplay of the long- and short-range $D \bar{D}^*$ forces in the $X(3872)$ from studying the light-quark (pion) mass dependence of its binding energy. In particular, the parameter-free leading-order calculation shows that the $X$-pole disappears for unphysical large pion masses. On the other hand, without contradicting the naive dimensional analysis, the higher-order pion-mass-dependent contact interaction can change the slope of the binding energy at the physical point yielding the opposite scenario of a stronger bound $X$ at pion masses larger than its physical value. An important role of the pion dynamics and of the 3-body $D\bar{D}\pi$ effects for chiral extrapolations of the $X$-pole is emphasised. The results of the present study should be of practical value for the lattice simulations since they provide a non-trivial connection between lattice points at unphysical pion masses and the physical world.
From a Video Game in a Virtual World to Collaborative Visual Analytic Tools

We investigated collaboration during a riddle-solving video game in a virtual world that drew elements from massively multiplayer online role-playing games and serious games. This disclosed benefits of collaborative game play over non-collaborative play in a virtual world. Participants were in the digital natives age range. Collaboration conditions varied over five sessions. We derived implications for accommodating collaboration in visual analytic (VA) tools. We have determined future research directions with respect to borrowing from video games to design VA tools that accommodate the unique characteristics of digital natives who become information analysts as evidenced during collaboration in a virtual world.
The molecular basis for p53 inhibition of autophagy in porcine fibroblast cells

Background Autophagy regulation involves an intricate network that can degrade and recycle cytosolic components in autophagosomes when cells are subject to various stress signals. p53 plays a dual role of induction or inhibition in the regulation of autophagy. Recently, pigs have been considered an excellent large animal model for their many anatomical and physiological similarities to humans. Here, we investigated the relationship between p53 and autophagy, as well as the underling molecular basis, in porcine fibroblast cells (PFCs). Methods Autophagy was induced by Earle’s balanced salt solution (EBSS) in p53-/- and p53wt PFCs. The autophagy response was assessed by immunoblotting, transmission electron microscopy (TEM) and fluorescent staining. The molecular basis for p53 regulation of autophagy was analyzed by qPCR. Results We found that the increased expression of LC3-II and the decreased expression of P62 occurred earlier in p53-/- PFCs than in p53wt PFCs, the relative autophagic flux of p53-/- PFCs was stronger than that of p53wt PFCs in a time-dependent manner. Meanwhile, we observed a visualized increase of autophagosomes in p53-/- PFCs. Moreover, we found greater accumulation of LC3 punctate and acidic vesicular organelle (AVOs) in the cytoplasm of p53-/- PFCs than in that of p53wt PFCs, and these effects were further augmented by Baf A1 treatment. Furthermore, we detected the expression of 6 autophagy signaling pathway-related genes and 14 autophagy-related (ATG) genes by qPCR. We found that the expression patterns of the 6 genes had significant differences in both groups of treated PFCs. These results demonstrated that p53 negatively regulated autophagy and involving the downregulation of LMNA gene by p53 via an unknown pathway, which causes the upregulation of the LC3, ULK1, ATG4B, ATG16L1 and ATG9A genes and the downregulation of the P62 gene. Conclusions p53-/- PFCs responded to autophagy earlier than p53wt PFCs, which implied that p53 might inhibit autophagy. The expression patterns of autophagy signaling pathway-related genes and ATG genes were most different between p53-/- and p53wt PFCs. Our study will provide a new biological model and contribute to further study of the molecular basis for p53 and autophagy.
Contemporary Developments in the Discovery of Selective Factor Xa Inhibitors: A Review

Thrombosis is a leading cause of death in cardiovascular diseases such as myocardial infarction (MI), unstable angina and acute coronary syndrome (ACS) in the industrialized world. Venous thromboembolism is observed in about 1 million people every year in United States causing significant morbidity and mortality. Conventional antithrombotic therapy has been reported to have several disadvantages and limitations like inconvenience in oral administration, bleeding risks (heparin analogs), narrow therapeutic window and undesirable interactions with food and drugs (vitamin K antagonist-warfarin). The unmet medical demand for orally active safe anticoagulants has generated widespread interest among the medicinal chemists engaged in this field. To modulate blood coagulation, various enzymes involved in the coagulation process have received great attention as potential targets by various research groups for the development of oral anticoagulants. Among these enzymes, factor Xa (FXa) has remained the centre of attention in the last decade. Intensive research efforts have been made by various research groups for the development of small, safe and orally bioavailable FXa inhibitors. This review is an attempt to compile the research work of various researchers in the direction of development of FXa inhibitors reported since 2010 onward.
When Biometrics Meet IoT: A Survey

The Internet of things, known as the third wave of the world’s information industry, has been widespread concerned in our society. Many countries regard IoT as a national strategic level technology. In the era of IoT, how to develop biometric technology evolution is a matter of concern. In this article, we present a survey of technologies, applications and challenges for biometrics technology in IoT environment. The topics we discussed include security problem, algorithm evaluation, big data, mobile cloud computing, new biometrics and sensor interoperability.
Preparation, Characterization, and Photoactivity of Polycrystalline Nanostructured TiO2 Catalysts.

Various preparations of nanostructured TiO2 starting from Ti(iso-OC3H7)4 or TiCl4 are reported. The samples were characterized by X-ray diffractometry, specific surface area and porosity determinations, scanning and transmission electron microscopy, and diffuse reflectance spectroscopy. 4-Nitrophenol photodegradation in aqueous medium was employed as a probe reaction to test the photoactivity of the catalysts. The photoactivity of some samples derived from Ti(iso-OC3H7)4 was found comparable with that of commercial powders. Calcination after the hydrolysis process was necessary to achieve crystallization of the particles before using them as photocatalysts for the reaction studied. The samples deriving from TiCl4 were the most photoactive among the home-prepared catalysts, and neither filtration nor calcination was needed to obtain a highly photoactive anatase phase.
Algorithms for anomaly detection in video sequences through discriminative models

Monitoring public areas with pedestrians is a task that has to be frequently accomplished by means of security systems. Nevertheless, manual detection of these anomalies is a tough task and it is easy to lose interesting events when many areas have to be attended. This is the main reason why the automated detection of these anomalies and interesting events in general has become an important source of research in the past years, specially in the field of computer vision. Automated anomaly detection is still an open task even though that many methods have been proposed. One of the reasons is that a successful and accurate anomaly detection algorithm strongly depends on the context and the definition of the anomalies to detect and the objects that produce them. The state of the art included in this work has been developed to make a complete study of all these aspects in detail, as well as a study of advantages and drawbacks of the main methods of the literature, helping to choose the best techniques and strategies for specific surveillance scenarios. Since there is a great difficulty to model every anomaly, we have decided to fashion the normality by means of Gaussian mixture models, which are relatively simple methods compared to others in the literature such as [1, 2], but that have shown potential at detecting anomalies. This can be observed on the methods proposed in [3] and [4]. We have decided to work at pixel level. Thus, to feed the model, discriminative descriptors are built based on a robust optical flow method, that has become the main source of motion and textural information of the scene. This fact makes this work different to other state-of-the-art approaches that work at pixel-level, whose optical flow is not capable to give such a detailed information of the scene. Finally, the evaluation of the final algorithm is performed exhaustively from a baseline method, whose descriptor grows depending on the best results so far on a publicly available dataset. Detection results are compared with the state-of-the-art methods, concluding that our method is at the same level of the methods proposed in the literature.
The Cognitive Mechanism of NP Anaphora Construction in Sports News Text

NP anaphora exists widely in sports news texts.It has proved that the construction of this linguistic phenomenon follows certain principle.On the basis of some previous researches on sports news texts,the author makes a detailed distribution of anaphora and NP anaphora in sports news texts in order to analyze the cognitive mechanism of NP anaphora construction in this kind of text from the perspective of cognitive linguistics.
A High Spectral Efficiency CDMA System Based on Expanded Generalized Complementary Orthogonal Code Groups

A new CDMA system which uses fractional chip shift expanded generalized complementary orthogonal code groups as spectrum spreading code sequences and offer high spectral efficiency is introduced in the paper. This new CDMA system is totally different with conventional CDMA system in access codes designing and spectrum spreading process. In this CDMA system, the access codes of different cells keep orthogonality, which eliminates inter cells interferences (ACI) by aperiodic crosscorrelation function (CCF). The spreading process of new CDMA system introduces inter symbols interference like overlap time division multiplexing (OVTDM) deliberately so as to improve spectral efficiency. The construction of expanded generalized complementary orthogonal code groups, shift method, principle of new CDMA system are explained respectively. Analysis and simulation results verify the validity of this new CDMA system.
A Parallel Processing and Synthesis Structure for Improving Access Security and Efficiency in SDN Environment

After studying the routing and forwarding process of network stream and the implementation of SDN, we propose a retractable management model for flow table. A structure with parallel tables and synthesis processing is proposed according to the feature of SDN and traditional network. The parallel tables share the same storage resources. Thanks to the separation of data plane and control plane, control plane owns more computing resources than traditional device. It evaluates the role of nodes and the action of network flows, makes adjustment according to the historical and current information and streamlines flow tables by consolidating and simplifying old flow entries. Through simulation, it is proved that the realized method can defend offensive traffic while ensuring the safety of accessing and forwarding, especially existing blocking attack.