Miracle-dz/UniFAR-FTUs huggingface dataset:
MEMSWear - Biomonitoring - Incorporating sensors into smart shirt for wireless sentinel medical detection and alarm

This paper presents a method of using a body-distributed smart sensor platform for continuous detection of vital physiological signs in a body area network (BAN) system. An overview of the approach utilising predefined sentinel vital sign events is mentioned in order to optimise the platform in both hardware and software level. A BAN system consisting of smart sensor platform with short range ISM transmission will be used to communicate with a communication gateway. This communication gateway will encode and send the signals via Bluetooth to designated devices to inform caregivers, family members or transmit information to internet server.
Toward methods for supporting the anticipation-feedback loop in user interface design

Recent research has compared different usability evaluation methods with respect to their effectiveness and efficiency. The paper analyses the impact of different usability evaluation methods on design problem-solving processes of individual designers and evaluators. It is proposed that usability evaluation methods have to be divided into two categories according to their fundamentally different way of supporting the design for usability: (1) guideline-based methods and (2) methods based on the mental generation of scenarios and anticipation of user goals. We present data from an experimental study that shows that these two types of methods entail differences in the perspective-taking processes. Furthermore, the results indicate that the methods have a differential impact on the general problem-solving strategy, i.e. whether to use a top-down, breadth-first or a depth-first approach. Possible implications for the development of techniques that support the design of usable systems are discussed.
Visualization of Wave Rotor Inner Flow Dynamics

The design of a wave rotor requires an understanding of the pressure wave dynamics in the rotor passages. The present paper describes a two-dimensional numerical simulation and an experimental visualization of the wave rotor compression process. First, a unique experimental apparatus with fixed cells and rotating ports was constructed for visualization and direct measurements; this arrangement is opposite to the conventional setup. Next, experimental and numerical results were compared to verify the simulation modelling, particularly with regard to the propagation velocity of pressure waves in the passages. Lastly, the effects of gradually opening the passage to the ports and leakage through the clearance, which are considered to be dominant factors in wave rotor operation, on the pressure wave dynamics were carefully investigated. The results showed that the gradual passage opening greatly influences the primary shock wave, whereas the leakage mostly influences the secondary (reflected) shock wave. Moreover, it was revealed that the leakage generates an extra pressure wave during the compression process due to the interaction between adjacent passages.
Electromagnetic interference reduction by dynamic impedance balancing applied in biosensors

Electromagnetic interference, caused by the electric power line, affects the signals of electronic instruments, specifically those with low levels of amplitude. This type of signal is known as Common Mode Interference. There are many methods and architectures used to minimize or eliminate the influence of these interferences in electronic instrumentation, the most common is the use of band reject filters to eliminate them. With this objective, we present the analysis, prototyping, developing and testing of a new architecture reconfigurable filter with application in biomedical instrumentation, applied to the reduction of interference in common mode and conservation of components of the useful signal in the same range of noise, by the principle of balancing impedance dynamic using the hardware description software and simulation electronics software. The methodology was tested using a sinusoidal signal in the same standard frequency of an electrocardiogram signal in the same frequency interference (50/60 Hz). Excellent results were obtained in simulation with noise reduction of approximately 97%, while the results of experimental tests showed around 50% reduction. In both cases, the useful signal was preserved, confirming the efficiency of the proposed architecture. The method can be applied to eliminate the interference, which are in the same band the of the useful signal components.
The future for in-vehicle information systems: The technology and its impacts

In-vehicle information has an important social role to play in improving the efficiency and safety of travel by all modes. In this review, three generations of system are identified. The first generation consists of simple in-vehicle units relying heavily on external data. The second generation has more sophisticated in-vehicle units with colour TFT screens and DVD players for maps and entertainment. The third generation again makes use of external data, using the mobile phone network to download map sections and other data as and when required, thereby obviating the need for beacons and map CDs. For locationing, GPS (and/or Galileo, the European version of GPS) remains the favoured technology. Portable devices offering multi-modal information could improve inter-modal transport efficiency.
How Does Reliance on Automated Tools During Learning Influence Students’ Air Traffic Management Skills When the Tools Fail?

Research on potential NextGen technology has shown that advanced conflict detection and resolution tools can increase air traffic controllers’ performance and decrease their workload. However, use of NextGen tools can change the way controllers represent and manage their sector. Kraut et al. (2011) found that when NextGen tools failed in a simulated environment, experienced controllers were able to recover from the error and revert back to manual air traffic management techniques. One question is whether students would be able to recover from failures of technology if they were trained to rely on NextGen tools during acquisition of their air traffic management skills. To answer this question, we performed a simulation in which students were trained over 16 weeks to manage a sector consisting of both NextGen equipped and unequipped aircraft. Reliance on manual skills versus NextGen tools was induced by varying the percentage of equipped aircraft, being mostly NextGen equipped aircraft (75% vs. 25%) or mostly non-equipped aircraft during the first 8 weeks of learning. After the 16 weeks of training, participants were tested under nominal and failure conditions. Results showed that under nominal conditions, the training type was not an important factor. Instead, the percentage of equipped aircraft was the important factor: More equipped aircraft led to better performance and lower workload. However, when comparing the same scenario in which there was a failure of NextGen tools, the group trained to rely more on manual skills early in training performed better than the group trained to rely more on NextGen tools early in training. Implications of these findings are discussed.
The Effect of One Course of Intense Interval Training on Serum Levels of Vitamin D, Heart Rate Variability and Lung Function in Male Smokers: A Quasi-Experimental Study

Background and Objectives: Smoking affects heart function, lung function and vitamin D levels, and decrease in serum levels of vitamin D, heart rate variability (HRV) and drop in pulmonary function cause cardiovascular disease. So, the aim of the present study was to investigate the effect of one course of intense interval training on serum levels of vitamin D, HRV and lung function in male smokers. Materials and Methods: In this quasi-experimental study 20 sedentary male voluntarily participated. They were randomly divided into experimental (n=10) and control (n=10) groups. The experimental group participated in an intense interval training program for six weeks and control group did no exercise training. HRV and pulmonary function were assessed by spirometry device and serum levels of vitamin D 48 hours before the first session and 48 hours after the end of last session training. Collected data were analyzed by paired t-test and Multivariate analysis of covariance for within group and between group comparisons, respectively. Results: The results showed a significant increase in HRV values and pulmonary function and low frequency waves to high frequency waves in the training group compared to the pretest and also compared to the control group (p<0.05). But no significant difference was observed in serum levels of vitamin D both in within group and between group comparisons (p<0.05). Conclusion: It can be concluded that six weeks of intense interval training, improves function of the autonomic nervous system and pulmonary function in male smokers.
Integrated optics to improve resolution on multiple configuration

Inspired to in order to reveal the structure to improve imaging resolution, further technical requirement is proposed in some areas of the function and influence on the development of multiple configuration. To breakthrough diffraction limit, smart structures are recommended as the most efficient and economical method, while by used to improve the system performance, especially on signal to noise ratio and resolution. Integrated optics were considered in the selection, with which typical multiple configuration, by use the method of simulation experiment. Methodology can change traditional design concept and to develop the application space. Our calculations using multiple matrix transfer method, also the correlative algorithm and full calculations, show the expected beam shaping through system and, in particular, the experimental results will support our argument, which will be reported in the presentation.
Coherent angle estimation based on Hankel matrix construction in bistatic MIMO radar

In this article, a novel coherent angle estimation method is proposed for bistatic multiple-input multiple-output radar. First, a decorrelation operation is taken by constructing a Hankel block matrix whose rank equals the number of coherent targets and is independent of the coherency between these targets. Therefore, the signal and noise subspaces of the Hankel block matrix can be estimated properly. Then, in conjunction with the ESPRIT algorithm, the shift invariance properties of the transmit and receive arrays are exploited to estimate the angles of coherent targets with automatic pairing. The numerical simulations demonstrate its validity.
Control of Constrained Flexible Manipulators

A new method is proposed for the end-effector motion and contact force control of flexible robot manipulators. The dynamic equations of flexible manipulators are partitioned as pseudostatic equilibrium equations and deviations from them. The pseudostatic equilibrium considered here is defined as a hypothetical state where the end-effector motion variables have their desired values while the elastic deformation variables are instantaneously constant. Then, the portion of the control torques for the pseudostatic equilibrium and the portion for the feedback stabilization of the deviations are generated using the measurement signals taken from the end-effector force and moment sensors, the strain gages and the joint encoders or the tip position sensors. The performance of the proposed method is illustrated on a planar two link robot with flexible forearm which is constrained to move on a cylindrical surface.Copyright © 2005 by ASME
Research on Operation Control Strategy of DC Micro Grid

With the development of society, the energy and environmental problems have emerged, and restricts the development of traditional large power grid. In such a situation, it is particularly important for the rational use of new and renewable energy, so the power supply form of distributed generation has been paid more and more attention. Distributed power advantage lies not only in its renewable and environmental effect, electric energy can also be local consumption of its formation, save the transmission cost. But the limitations of distributed power itself, such as its fluctuation, poor controllability, and single access costs are higher, which restrict the development of. Micro grid concept, then in Shangdi mostly solves all problems in distributed power grid access; provide more development space for distributed energy resources. This paper studies the DC micro grid, less research at the present stage of its, but because of its relative to the traditional AC micro grid in transmission and distribution from various advantages, I believe there will be a great space for development.
Low‐ringing and reduced‐cost step recovery diode based UWB pulse generators for GPR applications

Low‐ringing and reduced‐cost pulse generators for ultrawideband applications using step recovery diode (SRD) have been reported in this article. The circuits generate Gaussian pulses of 170 ps pulse width and a minimal ringing of −22 dB and monocycles of 401 ps duration and high fractional bandwidth of 162%. Cost‐reduction is mainly attributed to the resistive attenuator and single SRD used. Negligible change in circuits' performance was witnessed for repetition rate from 1 to 100 MHz which makes it apt for low to medium range ground penetrating radar applications. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:2289–2294, 2014
The creep of concrete under uniaxial tension

Summary Tests are reported on the strain of concrete under sustained uniaxial tensile stress. The effects on this strain of the level of stress, the time under load, the age of loading and the humidity of storage are examined and compared with the behaviour under compressive stress. In general, the influence of the factors was much the same for both senses of stress but differences were found in the rates of creep, in the magnitudes of the strains under saturated conditions of storage and in the shape of the recovery curve after removal of load. Finally, two further tests are reported which indicate that the strains under a cycle of tension or compression are unaffected by a previous cycle under a stress of opposite sense.
The Influence of Critical Success Factors (CSF) Of Entrepreneurial Practices on Business Performance among Entrepreneurs in The Petaling District Mosques, Selangor

The aim of this research is to achieve three prime objectives that are:identifying the stage of entrepreneurship practice critical success factors among the entrepreneurs running some business at the mosques in Petaling District of Selangor, establishing the link between entrepreneurship practice critical success factors with their business performance at the mosques in Petaling District of Selangor and studying the entrepreneurship practice critical success factors influencing their business performance at the mosques in Petaling District of Selangor. Thus, quantitative research design has been opted to justify the research scope and 18 hypotheses. The quantitative method through observation techniques and survey were distributed to 70 selected samples out of 86 available business units. Descriptive analyses indicates the average value and standard gap that rank the top, initiates teamwork factors that obtain the average value 4.2667. The correlation finding, on the other hand, illustrates that marketing management, strategic planning, ICT skill, communication network, training and education as well as entrepreneurship orientation note significant link with the business performance while financial management and teamwork implies to extreme unfavourable significant link. The finding of multiple regression analyses, however, displays three critical success factors influencing the business performance, namely:strategic planning, training and education and also entrepreneurship orientation. The research implication demonstrates several proposals that substantially caters for certain parties’ essentials, particularly the mosques’ authority committee that need to enhance the activity of business errands with potentially maximum business opportunities offered to the whole community.
Design of a Grid-Connected Inverter for a Hybrid Renewable Power System

For the depletion of the limited traditional energy and the deterioration of the living environment, it is a focus of attention of the word for utilization of clean and renewable energy sources such as wind, solar and hydrogen Energy. In this paper, the design of a robust voltage source grid-connected converter is developed. And it is used in a hybrid renewable power system (HRPS). The power electronic system and the control system are introduced. Finally, some experimental results of the system are presented.
Evaluation of a printed patch antenna for robust microwave RFID tags

Antennas in radio frequency identification (RFID) tags have often been designed in a single layer with copper as conductor and plastic foils as substrate. There is currently a large interest in roll to roll production of RFID tags and silver-based inks have been developed for use in printed RFID antennas. Silver ink based single layer antennas work well and provide 70-80% of the reading range compared to copper solutions. However, more advanced antennas are needed to provide less sensitivity to the environment of RFID tags that is need for placing tags on metal or near water. In this work, a study of multilayered antennas so called patch antennas, for 2.45 GHz RFID tags, is presented. The advantage of the patch antenna is that it can be applied to any kind of material, reflecting or lossy material, and still provide good antenna function. However, the patch antenna efficiency is strongly dependent on the material used. For low cost RFID tags in logistics there is a need to manufacture the antenna as a part of the packaging process. In the current work, the possibility of manufacturing printed patch antennas of common packaging materials is investigated
Development of robotic strawberry harvester to approach target fruit from hanging bench side

Abstract To reduce the labor involved in strawberry production, we have developed a strawberry harvesting robot that can operate on a hanging bench culture. In the hanging bench culture, a plant is grown on a bench that has been hung from a beam of the greenhouse. The bench is set at a height of approximately 1.0 m from the floor. In general, mature fruits are located behind immature fruits as viewed from the aisle side. In such a case, a conventional robotic harvester tends to fail in approaching the target fruit because of obstacles such as neighboring immature fruits. As viewed from the hanging bench side, mature fruits are located in front of the immature fruits. Considering this case, our robot has a unique feature that it approaches the target fruit from the hanging bench side and positions itself right below the hanging bench. We have developed a traveling platform for the robot to traverse on and accomplish complete harvesting tasks in a 2D area in a greenhouse. The traveling platform has a gantry structure that moves on a set of three rails. The performance of the traveling platform has been tested, and basic stable movements have been observed in the transverse and the path direction. A negative longitudinal slippage has been observed when a weight of 200 kg was loaded. Basic performance tests of the robotic harvester have confirmed that the robot can successfully harvest mature fruits.
Reconfigurable microstrip‐patch antenna with frequency and polarization‐diversity functions

The design of a novel reconfigurable microstrip‐patch antenna with frequency‐ and polarization‐diversity functions is presented. A U‐slot inserted into the square patch and a PIN diode are utilized to realize frequency‐diversity operation. Polarization diversity between linear polarization (LP) and right‐hand circular polarization (RHCP) is also provided by switching the two PIN diodes on the truncating corners of a square patch on and off. The designed antenna is implemented and the antenna characteristics are measured. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 47: 605–607, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21242
Modeling and Incremental Nonlinear Dynamic Inversion Control of a Novel Unmanned Tiltrotor

A novel, tiltrotor, unmanned aerial vehicle configuration has been designed, and a preliminary dynamic model has been created for control design purposes based on a component buildup approach. This method has been preferred over a conventional stability derivative approach because it models the nonlinear aircraft dynamics in the entire flight envelope, ranging from hover to forward-flight conditions at any airflow angles. The flight control system has then been synthesized based on an incremental nonlinear dynamic inversion technique. The incremental strategy was adopted to solve the problem of the nonlinear dynamic model not being control affine due to effector redundancy, dramatic nonlinearities, and cross-coupling effects introduced by the use of thrust vectoring during hover and transition phases. Local control derivatives were calculated online from the dynamic model. Effector redundancy was managed, developing a control allocation module for distributing the control effort according to a daisy-chain.
Effective Elimination of Lymphoma Cells in Stromal Microenvironment by Double Impact on ROS and ATP Metabolism Using Auranofin

Background Protection of cancer cells by the stromal microenvironment is an important drug-resistant mechanism in vivo, and poses a major challenge in cancer treatment. Based on our recent findings that auranofin (AF), an anti-rheumatic drug known to inhibit thioredoxin reductases (TrxR), was effective against several cancer models in vivo, this study tested the ability of AF to eliminate cancer cells in the tumor stromal microenvironment and investigated the underlying mechanisms. Methods Cytotoxic effect of AF on 33 cancer cell lines in vitro was determined by MTS assay to identify AF- sensitive cancer cells. Further cytotoxic effect of AF on the identified cancer cells was determined by flow cytometry analysis in stromal co-culture system. Mitochondrial bioenergetics assays using the Seahorse XF24 analyzer, mass spectrometry analyses, and enzyme activity assays were used in the mechanistic study. For in vivo study, lymphoma xenograft models were utilized to evaluate the in vivo therapeutic activity of AF in mice. Results We unexpectedly found that AF exhibited higher therapeutic activity against lymphoma cells in stromal microenvironment compared to lymphoma cell treated with AF without stromal cells. Mechanistic study showed that AF impacted energy metabolism by inhibiting the glycolytic enzyme GAPDH and suppressing mitochondrial electron transport complex II, leading to ATP depletion. Surprisingly, inhibition of TrxR seemed not critical for its anticancer activity, as genetic silencing of TrxR1 and TrxR2 did not significantly affect cell viability. Co-culture of lymphoma cells with stromal cells enhanced the expression of TrxR1, which became an ROS-generating molecule when interacting with AF. The AF-induced ATP depletion plus ROS generation together effectively killed the cancer cells in stromal microenvironment, and significantly suppressed tumor growth in mice bearing mantle cell lymphoma xenografts. Conclusions Our study reveals a novel mechanism by which AF eliminates cancer cells in tumor microenvironment by impacting cancer metabolism and promoting ROS generation, and suggests a possibility to repurpose this anti-rheumatic drug for treatment of lymphoma and overcome drug resistance in stromal microenvironment.