Miracle-dz/UniFAR-FTUs huggingface dataset:
Electrical turbulence in three-dimensional heart muscle.

Rotors or vortex action potentials with a diameter of about 1 centimeter and a rotation period of about 0.1 second occur in normal myocardium just before transition to fibrillation, a disorderly pattern of action potential propagation. Numerical models and corresponding mathematical analysis have recently suggested candidate mechanisms, all two-dimensional, for this transition from periodic electrical activity to something resembling turbulence. However, comparably recent experiments unanimously show that rotors, and the spiral waves they radiate, remain stably periodic in two-dimensional myocardium. This seeming paradox suggests a transition mediated through disorderly dynamics of the electrical vortex in three dimensions, as a "vortex filament. "
Modeling high-order human intelligence with intelligence of swarm

Particle Swarm Optimization (PSO) is a type of meta-heuristic optimization method built on the basis of the principle of collective behaviors exhibited by simple organisms. Although PSO is a model of social behaviors, the present research attempts to model learning behaviors of an individual human with PSO in order to evaluate our hypothesis that the dynamics of knowledge that are being acquired and updated in our mind resemble the dynamics of social interactions exhibited by swarms. A simulation study showed that a cognitive model with PSO was able to replicate not only manifested cognitive behaviors but also latent cognitive behaviors, resulting in the acquisition of at least two dissimilar yet functional solutions for a given task.
Secure and Efficient Application Monitoring and Replication

Memory corruption vulnerabilities remain a grave threat to systems software written in C/C++. Current best practices dictate compiling programs with exploit mitigations such as stack canaries, address space layout randomization, and control-flow integrity. However, adversaries quickly find ways to circumvent such mitigations, sometimes even before these mitigations are widely deployed. In this paper, we focus on an "orthogonal" defense that amplifies the effectiveness of traditional exploit mitigations. The key idea is to create multiple diversified replicas of a vulnerable program and then execute these replicas in lockstep on identical inputs while simultaneously monitoring their behavior. A malicious input that causes the diversified replicas to diverge in their behavior will be detected by the monitor; this allows discovery of previously unknown attacks such as zero-day exploits. So far, such multi-variant execution environments (MVEEs) have been held back by substantial runtime overheads. This paper presents a new design, ReMon, that is non-intrusive, secure, and highly efficient. Whereas previous schemes either monitor every system call or none at all, our system enforces cross-checking only for security critical system calls while supporting more relaxed monitoring policies for system calls that are not security critical. We achieve this by splitting the monitoring and replication logic into an in-process component and a cross-process component. Our evaluation shows that Re-Mon offers same level of security as conservative MVEEs and run realistic server benchmarks at near-native speeds.
Virtual teaching based on hand manipulability for multi-fingered robots

A virtual robot teaching that consists of human demonstration and motion-intention analysis in a virtual reality environment is an advanced technology of automatic programming for multi-fingered robots. For the virtual hand model displayed on-screen, a human-hand model is better than a robot-hand model in terms of teaching time and a stable manipulation of virtual object. However, it may occurs that a robot cannot grasp an object at a teaching position and orientation of the robot hand because the geometrical size and motional function of the robot hand is not the same as that of human hand. To solve this problem, we propose a virtual teaching based on hand manipulability, in which a position and orientation of the robot hand is determined so as to maximize a manipulability of the robot hand on the condition that the robot grasps the object at the teaching contact points on the object. Experimental results of a pick-and-place task are shown to demonstrate the effectiveness of the proposed method.
Constructing and analyzing customer satisfaction index of mobile phone video service

This paper firstly constructed an initial customer satisfaction index model of mobile phone video based on the study of classic customer satisfaction index model and the characteristics of mobile phone video. The customer satisfaction evaluation indicator system of mobile phone video and the questionnaire were designed. Then we conducted a survey, and used AMOS software to analyze the sample data quantitatively. Then taking a video client as an example, we analyzed variables that affect mobile phone video service satisfaction and their relationship. Along with this, we revised the customer satisfaction index model in order to adapt to mobile phone video service context, and proposed some advice to improve the customer satisfaction of mobile phone video. We hope the research can provide some experiences for the study of mobile service.
Mining heuristics for scheduling distributed hard real-time tasks

We present a method for producing heuristics to direct the search for solutions in task allocation and scheduling problems. The problems considered consist of allocating and scheduling tasks with precedence and hard real-time constraints into distributed systems. Heuristics are produced in two steps. In the first example of promising and unpromising search, states are extracted from the search trees of previously solved problems. In the second, using the extracted examples, the C4.5 algorithm induces classifiers that label search nodes as promising or unpromising. We conclude discussing the results of experiments that compare the success ratio and number of nodes visited to solve problems when a search algorithm chooses the next node to be examined using a random heuristic and when it uses the induced classifiers.
A 71GHz RF energy harvesting tag with 8% efficiency for wireless temperature sensors in 65nm CMOS

This paper presents the first monolithically integrated RF-power harvesting 71 GHz wireless temperature sensor node in 65nm CMOS technology, containing a monopole antenna, a 71 GHz RF power harvesting unit with storage capacitor array, an End-of-Burst monitor, a temperature sensor and an ultra-low-power transmitter at 79 GHz. At 71 GHz, the RF to DC converter achieves a power conversion efficiency of 8% for 5 dBm input power.
A review on Direct Torque Control (DTC) of induction motor: With applications of fuzzy

At present, induction motors are the dominant drives in various industries. It is quite cumbersome to control an induction motor (IM) because of its poor dynamic response in comparison to the DC motor drives. The central theme of Vector Control (VC) is to decouple the stator current of the IM into two orthogonal components and is to control these two components individually so as to achieve an independent control of flux and torque of the IM. VC is still very complex to implement. Direct Torque Control (DTC) is an improvised VC method. With the DTC scheme employing a Voltage Source Inverter, it is possible to control directly the stator flux linkage and the electromagnetic torque by the optimum selection of inverter switching vectors. The modeling of an IM drive employing DTC with application of fuzzy is performed in this article, it is better to understand the DTC and its difficulties. The reference voltage vector is then realized using a voltage vector modulator. Several variations of DTC-SVM have been proposed and discussed in the literature. The work of this review paper is to study, evaluate and compare the various techniques of the DTC-SVM applied to the Induction Motor.
A Control-Oriented Analysis of Bio-inspired Visuomotor Convergence

Insects exhibit incredibly robust closed loop fight dynamics in the face of uncertainties. A fundamental principle contributing to this unparalleled behavior is rapid processing and convergence of visual sensory information to fight motor commands via spatial wide-field integration, accomplished by retinal motion pattern sensitive interneurons (LPTCs) in the lobula plate portion of the visual ganglia. With in a control- theoretic frame work, models for spatially continuous retinal image flow and wide-field integration processing are developed, establishing the connection between image flow kernels (retinal motion pattern sensitivities) and the feedback terms they represent. It is shown that these out puts are sufficient to stabilize speed regulation and terrain following tasks. Hence, extraction of global retinal motion cues through computationally efficient wide-field integration processing provides a novel and promising methodology for utilizing visual sensory information in autonomous robotic navigation and fight control applications.
Pattern classification system for the automatic analysis of paper for recycling

The objective of this paper is the development of a pattern classification system for the automatic analysis of the composition of samples from paper for recycling. The system uses a colour video camera and dynamic scales as sensors. An overall number of 26 features of the categories weight, shape, colour, texture and amount of optical brighteners are extracted to distinguish between ten classes of paper for recycling. Five classifiers of different types are trained and tested with industrial samples. During testing a piece of paper is assigned to the class most common among the five classifiers, but the classification success rates lie under 50% for some classes and are therefore not acceptable. For this reason, the system is modified to discriminate only between six of the ten classes. For those classes, the classification success rates lie between 94% and 100% which is suitable for the analysis of samples from paper for recycling.
A Pre-Anticipated Handover Seamless QoS Scheme for IEEE 802.16e Based on Mobile Station Character Pattern

Some character patterns of mobile station, such as conversation time and call times, obey the Pareto distribution. Based on this point, this paper proposes a pre-anticipated handover scheme to optimize the services for the dominant minority correspondent nodes, to offer better real-time applications and better QoS of TCP connections and to moderate package latency, especially in call initialization and handover processes. The scheme keeps dominant minority in the VIP address book and informs them of context messages on the handover, AAA, QoS, etc., before anticipated handover (so called address book informing scheme, or ABI), triggered by entering the border of cell. In case of signaling overflows, ERT-VR in IEEE 802.16e is introduced to forward the context messages, since IEEE 802.16e offers five QoS guarantees from the MAC layer. Performance simulations of the scheme show that delay and packet losses are reduced during call initialization and handover processes, and resource possession of RSVP are mitigated
A central regulatory role for eosinophils and the eotaxin/CCR3 axis in chronic experimental allergic airway inflammation

To clarify the role and regulation of eosinophils, we subjected several key eosinophil-related genetically engineered mice to a chronic model of allergic airway inflammation aiming to identify results that were independent of the genetic targeting strategy. In particular, mice with defects in eosinophil development (Δdbl-GATA) and eosinophil recruitment [mice deficient in CCR3 (CCR3 knockout) and mice deficient in both eotaxin-1 and eotaxin-2 (eotaxin-1/2 double knockout)] were subjected to Aspergillus fumigatus-induced allergic airway inflammation. Allergen-induced eosinophil recruitment into the airway was abolished by 98%, 94%, and 99% in eotaxin-1/2 double knockout, CCR3 knockout, and Δdbl-GATA mice, respectively. Importantly, allergen-induced type II T helper lymphocyte cytokine production was impaired in the lungs of eosinophil- and CCR3-deficient mice. The absence of eosinophils correlated with reduction in allergen-induced mucus production. Notably, by using global transcript expression profile analysis, a large subset (29%) of allergen-induced genes was eosinophil- and CCR3-dependent; pathways downstream from eosinophils were identified, including in situ activation of coagulation in the lung. In summary, we present multiple lines of independent evidence that eosinophils via CCR3 have a central role in chronic allergic airway disease.
Change management : an integrative approach

This thesis explores the nature of organisational change and proposes that the majority of change programmes are unsuccessful due to their interventionist orientation. The inherent complexity of organisational change is such that the change needs to be understood from a range of perspectives and that many factors need to be fully integrated if the change is to be managed effectively. The original proposition was a vertically integrated methodology called the Five Dimensions of Change that stratified and integrated organisational activity from strategic planning to operational processes. This was fundamentally a prescriptive and positivistic model of change management, that was subsequently developed into a more interpretive, question-based approach called the Six Dimensions of Change, which included a focus on the person-centred and socio- cultural aspects of an organisation and proposed a more integrated and generative methodology. This approach was further refined to encompass the critical learning of the author that a change agent must take full cognisance of the personal and symbiotic relationship they have with the change programme. This holistically integrative methodology is explored through the use of the DNA helix, representing the importance of direction, task focus, people focus and the nature of engagement of the change agent. Three case studies explore the development and refinement of the methodology and these are explored from three perspectives: researcher, change agent andlearner, thus providing epistemological relativism and ensuring that the essential elements of action, learning and research were the focus of the work. Action Learning was central to the development, and critically to the refinement, of the integrative methodology and this is documented within the thesis, as is the personal and professional development of the author. Action Learning Sets provided opportunity for constant challenge and critical evaluation of the work and resulted in a significant personal exploration of the manner in which the author as a change agent interacts and engages with a change programme.
Spatially Distributed Sources Localization with a Subspace Based Estimator Without Eigendecomposition

In this paper, a new subspace-based algorithm for parametric estimation of angular parameters of multiple incoherently distributed sources is proposed. This method consists of using the subspace principle without any eigendecomposition of the covariance matrix, so that it does not require the knowledge of the effective dimension of the pseudosignal subspace and then the major difficulty of the existing subspace estimators can be avoided. The proposed idea relies on the use of the property of the inverse of the covariance matrix to exploit approximately the orthogonality property between column vectors of the noise-free covariance matrix and the sample pseudo-noise subspace. Simulation results show that, compared with other known methods, the proposed algorithm exhibits a better estimation performance.
Lab on a Chip PAPER

The leaf venation is considered to be an optimal transportation system with the mesophyll cells being divided by minor veins into small regions named areoles. The transpiration of water in different regions of a leaf fluctuates over time making the transportation of water in veins fluctuate as well. However, because of the existence of multi-paths provided by the leaf venation network and the pits on the walls of the vessels, the pressure field and nutrient concentration in the areoles that mesophyll cells live in are almost uniform. Therefore, inspired by such structures, a microfluidic design of a novel cell culture chamber has been proposed to obtain a stable and uniform microenvironment. The device consists of a novel microchannel system imitating the vessels in the leaf venation to transport culture medium, a cell culture chamber imitating the areole and microgaps imitating the pits. The effects of the areole and pit on flow fields in cell culture chamber have been discussed. The results indicate that the bio-inspired microfluidic device is a robust platform to provide an in-vivo like fluidic microenvironment.
Foodborne Illness Acquired in the United States

To the Editor: The updated estimates of foodborne illness in the United States reported by Scallan et al. probably overestimate the occurrence of illness caused by unspecified agents because they did not account for the apparent sensitivity of the population survey to the occurrence of norovirus (1,2). The number of illnesses attributed to unspecified agents was derived from the simultaneous processes of extrapolation and subtraction: extrapolation from the population survey to create a base of diarrheal illnesses and subtraction of known agents from this base. Scallan et al. averaged illness rates from 3 successive population surveys to come up with a rate of 0.6 episodes of acute gastroenteritis per person per year. However, the individual rates were 0.49 (2000–2001), 0.54 (2002–2003), and 0.73 (2006–2007). The 2006–2007 survey was conducted at the time of widespread norovirus activity. The estimated rate of population illness was strongly correlated with the number of confirmed and suspected norovirus outbreaks reported to the Centers for Disease Control and Prevention Foodborne Disease Outbreak Surveillance System during each of the survey periods (300, 371, and 491, respectively; R2 = 0.97, p<0.0001). No other known agents were correlated with the population survey rates, and the total numbers of outbreaks were inversely correlated with the population survey data. The strength of the correlation between norovirus outbreaks and survey results suggests that the population survey is sensitive to norovirus activity and that norovirus may account for much of what is considered to be unspecified. The fact that the highest observed population rate was ≈50% greater than the lowest rate suggests that annual variation in norovirus activity may account for a considerable proportion of what otherwise seems to be unspecified. More thorough and timely investigation and reporting of outbreaks could facilitate the development of models to evaluate the number of illnesses and update them annually.
Effect of Coating on the Strain Transfer of Optical Fiber Sensors

Optical fiber strain sensors with light weight, small dimensions and immunity to electromagnetic interference are widely used in structural health monitoring devices. As a sensor, it is expected that the strains between the optical fiber and host structure are the same. However, due to the shear deformation of the protective coating, the optical fiber strain is different from that of host structure. To improve the measurement accuracy, the strain measured by the optical fiber needs to be modified to reflect the influence of the coating. In this investigation, a theoretical model of the strain transferred from the host material to the optical fiber is developed to evaluate the interaction between the host material and coating. The theoretical predictions are validated with a numerical analysis using the finite element method. Experimental tests are performed to reveal the differential strains between the optical fiber strain sensor and test specimen. The Mach-Zehnder interferometric type fiber-optic sensor is adopted to measure the strain. Experimental results show that the strain measured at the optical fiber is lower than the true strain in the test specimen. The percentage of strain in the test specimen actually transferred to the optical fiber is dependent on the bonded length of the optical fiber and the protective coating. The general trend of the strain transformation obtained from both experimental tests and theoretical predictions shows that the longer the bonded length and the stiffer the coating the more strain is transferred to the optical fiber.
Method for Unequal Error Protection in DVB-H for Mobile Television

This paper introduces a method for unequal error protection (UEP) of media data in a time-sliced DVB-H channel. Media datagrams are assigned priorities using some a-priori knowledge. Datagrams covering a certain period of playback time are first grouped based on the priority assignment. Each group is then protected using Reed-Solomon forward error correction (FEC) codes and packed into multi-protocol encapsulation (MPE) FEC frames as defined by the DVB-H standard. All MPE-FEC frames for a certain period of playback time are then sent back to back without any delay between these MPE-FEC frames. This method of UEP is generic and can be tuned according to the priority assignment algorithm. Simulations using H.264/AVC video were conducted to evaluate the performance of the proposed method. It used a simple priority assignment algorithm. The resulting rate distortion graphs show good performance and an average luma peak signal-to-noise ratio (PSNR) improvement of up to 0.8 dB was achieved
NASDAQ Velocity and Forces: An Interactive Visualization of Activity and Change

NASDAQ Market Velocity and Market Forces are two relatively new data products that attempt to capture market sentiment, something that was previously only observable if one was on a trading floor. Given the transient and temporal properties of the data, we were challenged to create a visualization that would highlight the ever-changing qualities of Velocity and Forces. To that end, we developed FireStox, a web application that provides unified representation and filtering solutions to help market researchers observe the behavior of these metrics for one or many companies throughout the course of a trading day.
Retrieval Experiments at Morpho Challenge 2008

Morpho Challenge 2008 hosted an extrinsic evaluation of morphological analysis that explored whether unsupervised morphology induction could benet information retrieval. This paper presents results in alternative methods for word normalization using test sets from the Cross-Language Evaluation Forum (CLEF) ad-hoc collections. Preliminary results for the Morpho Challenge 2008 evaluation are consistent with these data. We found that: (1) rule-based stemming is eective in less morphologically complicated languages; (2) alternative methods for stemming such as unsupervised learning of morphemes and least common n-gram stemming are helpful; and, (3) full character n-gram indexing is the most eective form of tokenization in more morphologically complex languages.