Miracle-dz/UniFAR-FTUs huggingface dataset:
Distributed Control of a Swarm of Autonomous Unmanned Aerial Vehicles

Abstract : With the increasing use of Unmanned Aerial Vehicles (UAV)s military operations, there is a growing need to develop new methods of control and navigation for these vehicles. This investigation proposes the use of an adaptive swarming algorithm that utilizes local state information to influence the overall behavior of each individual agent in the swarm based upon the agent's current position in the battlespace. In order to investigate the ability of this algorithm to control UAVs in a cooperative manner, a swarm architecture is developed that allows for on-line modification of basic rules. Adaptation is achieved by using a set of behavior coefficients that define the weight at which each of four basic rules is asserted in an individual based upon local state information. An Evolutionary Strategy (ES) is employed to create initial metrics of behavior coefficients. Using this technique, three distinct emergent swarm behaviors are evolved, and each behavior is investigated in terms of the ability of the adaptive swarming algorithm to achieve the desired emergent behavior by modifying the simple rules of each agent. Finally. each of the three behaviors is analyzed visually using a graphical representation of the simulation, and numerically, using a set of metrics developed for this investigation.
IPT framework: a technical & administrative approach for IP packets traceback and identifying cyber criminals

In recent years the use of internet has become wider and include many financial transactions and business information too. And these usages have led to the increasing of abuse from the internet. Although a lot of security software and hardware are designed to prevent cyber attacks, the efficiency of these tools hasn't been fully reliable. As a result, the study around the topic of identifying cyber criminals becomes too important. But for achieving this goal it's needed to trace any internet packets and relate it's IP address to a real person. But there are a lot of limitations in the structure of the internet to trace any internet packets. Also because this structure, primarily established for information transfer in academic and scientific environments on the basis of mutual trust, no identity confirmation is applied for the parties in communication protocols of TCP/IP model. During the past 10 years, subtle techniques have been introduced for tracing IP packets; however, considering the lack of proper infrastructure, the process of applying them has not yet become administrative. In this paper IPT framework will be introduced as an effective and administrative method for traceback of IP packets and identification of cyber criminal specially for crimes lead to data theft.
NONLINEAR FINITE ELEMENT ANALYSIS OF TRANSVERSELY PRESTRESSED CONCRETE DECK SLABS

This paper describes the modeling and analysis procedure of a 3D, solid, nonlinear finite element (FE) model of a bridge developed in the finite element analysis software package TNO DIANA to study the structural behavior in punching shear of transversely prestressed concrete deck slabs cast between flanges of long, pretensioned girders, and compressive membrane action. The numerical research was part of a broad project involving laboratory experiments carried out on a 1:2 scale model of such a bridge in Delft University of Technology. Both the experimental and numerical results showed much higher capacities than expected and this was attributed to the development of compressive membrane action in the plane of the slab. The numerical results were then compared with the experimentally found ultimate loads of eight basic test cases and it was discovered that the nonlinear FE models can predict the load carrying capacity quite accurately with a coefficient of variation of only 11%. It was concluded that punching shear failures can be reasonably modeled with non-linear finite element analysis of 3D solid models. Furthermore, using composed elements can lead to the determination of compressive membrane forces developed in a laterally restrained slab, which was previously difficult to determine using analytical techniques.
Fabrication of an Original Transparent PVA/Gelatin Hydrogel: In Vitro Antimicrobial Activity against Skin Pathogens

The design of actively efficient and low-toxicity formulations against virulent bacterial strains causing skin infections remains a challenging task. The aim of the present study was to develop and evaluate in vitro a hydrogel impregnated with a known plant extract for topical applications against major skin bacteria. A poly(vinyl alcohol) (PVA)/gelatin hydrogel, namely HG, was prepared by esterification following the solution casting method. The gelling process was realized by cross-linking the synthetic polymer PVA and the biopolymer gelatin in the presence of hydrochloric acid (HCl). A crude extract of Nigella sativa seeds was then encapsulated in HG, and the resulting HGE was characterized morphologically (by Scanning Electron Microscopy (SEM)), structurally (by X-ray powder diffraction (XRD) and Fourier Transform Infrared (FTIR) spectroscopy), behaviorally (by swelling behavior), and biologically (by the agar well diffusion method). The results of HGE were compared to HG and HG impregnated with 10% acetic acid (HGAA). SEM sections of HGE revealed a dense and porous surface, suggesting a good hydrophilicity. X-ray diffractograms indicated that HGE and HG had a similar degree of crystallinity. FTIR spectra confirmed that esterification occurred between PVA and gelatin suggesting that the amine group is involved in the intercalation of the plant extract components in HG. Further, HGE was found to be as wettable and swellable as HG, suggesting a good biocompatibility. Eventually, HGE exerted a pronounced inhibitory effect against two major skin pathogens, the Gram-negative Pseudomonas aeruginosa and the Gram-positive Staphylococcus aureus, suggesting a good extract release. Taken together, the experimental data indicated that HGE might be a promising wound dressing.
Recent Research in Behind-Armor Blunt Trauma and Traumatic Brain Injury

Abstract : The occurrence of traumatic brain injury (TBI) among U.S. Soldiers is daunting. Therefore, the ongoing effort to develop more advanced technologies for Soldier protection requires a complete understanding of the work that has been done. Although a broad range of fields of expertise have looked at TBI, there remains little understanding of the TBI mechanism. Also of interest is the role of the helmet and its effectiveness against blunt impact and blast threats. Computational modeling can offer great insight into the injury mechanisms of the brain due to blunt force trauma. These predictive models can help mold the direction of helmet research and development. This report gives a broad overview of the work that has been done in the area of behind-armor blunt trauma and traumatic brain injury research.
Examples of three representative types of airfoil-section stall at low speed

Report presenting force, moment, pressure-distribution, and boundary-layer measurements for a series of five airfoil sections. The stalling characteristics of the three airfoil sections at low speeds can be separated into three types. A deeper discussion of the role of boundary-layer flow and separation processes in relation to stalling and the sensitivity of stall to factors that influence boundary-layer growth is provided.
On Control of Back-to-Back Converters and Sensorless Induction Machine Drives

This thesis focuses on design and analysis of the control system structure for back-to-back converter squirrel-cage induction machine drives. Particularly, sensorless control of induction machines, meaning vector control without a mechanical shaft sensor, and vector control of pulsewidth-modulated (PWM) rectifiers are considered. The back electromotive force is used as the basis for sensorless control in this thesis. A variant of the classical "voltage model" is adopted for sensorless flux estimation. It is shown that the estimator must be redesigned for the purpose of arbitrarily placement of the closed-loop poles. A thorough stability analysis of the redesigned estimator shows that asymptotical stability can be guaranteed at nominal speeds. The stability at very low frequencies is, however, largely affected by the knowledge of the stator resistance. The presence of a singularity for zero stator frequency is found, which makes it impossible to guarantee stable operation at very low frequencies, except for the case of zero external load torque. The underlying mechanisms behind the two widely acknowledged instability phenomena for sensorless control at low frequencies are revealed. The most critical form of instability is the infamous flux collapse: the flux collapses to approximately zero, giving nearly total loss of torque, and uncontrolled rotation in the direction of the external load torque. The less well-known instability phenomenon frequency lockup is not as critical: the field orientation deteriorates, such that the torque reduces but not vanish, and the stator frequency and rotor speed lock on to constant values close to zero. A control system structure is developed for the PWM rectifier. The previously proposed concept of virtual flux is adopted for grid-voltage synchronization, and three different synchronization algorithms are analyzed. The PWM rectifier is also considered for an active filtering application, for which a vector current control system designed for the deadbeat response is designed. An analysis shows that the resulting deadbeat control system is equivalent to previously proposed Smith predictor structures.
The constraints- based approach to motor learning: implications for a non- linear pedagogy in sport and physical education

Recently, a constraints- led approach has been promoted as a framework for understanding how children and adults acquire movement skills for sport and exercise (see Davids, Button & Bennett, 2008; Araujo et al., 2004). The aim of a constraints- led approach is to identify the nature of interacting constraints that influence skill acquisition in learners. In this chapter the main theoretical ideas behind a constraints- led approach are outlined to assist practical applications by sports practitioners and physical educators in a non- linear pedagogy (see Chow et al., 2006, 2007). To achieve this goal, this chapter examines implications for some of the typical challenges facing sport pedagogists and physical educators in the design of learning programmes.
R and D and Productivity at the Industry Level: Is There Still a Relationship?

This paper is a re-examination of the relationship between research and development (RD if anything, the relationship was stronger in recent years. The overall deceleration in productivity in recent years has affected R&D-intensive industries, but to a lesser extent than it has other industries. What cannot be found in the data is strong evidence of the differential effects of the slowdown in R&D itself. The time series appear to be too noisy and the period too short to detect what the major consequences of the retardation in the growth of R&D expenditures may yet turn out to be.
Routing simulation of brain network topology.

The incessant search to understand human cognitive functions has led to the hypothesis that the brain works similar to a packet switched network such as the Internet [28]. In this thesis, I have developed a top-down simulator of brain-like networks which uses prob- ability routing to route data and a distance vector routing algorithm [21] to propagate feedback to varying depths. I investigate the impact of the feedback depth on routing table metrics. The results indicate that important performance metrics are affected by the feedback depth of the routing algorithm but also, to a large extent, by the topological features of such networks [17, 44]. The results indicate feedback depths from 25 to 30 fill the routing table most efficiently in terms of routing table fill percentage, routing table fill time and packet rejection ratio. There is also a strong correlation between the macaque monkey brain and sparse topologies.
EVOLUTIONARY COALITION FORMATION IN COMPLEX NETWORKS

An optimal clusterization model is introduced and studied - an approach that combines an evolutionary algorithm by the principles of the physical spin systems. The method is used to investigate the process of coalition formation that appears in complex systems. The numerical experiments show that the proposed hybrid model is able to detect the optimal clusterization in small and large systems by a reasonable cost of complexity (seen in terms of time and physical computational resources).
A Numerical Study On Unsteady Flow Around a Mechanical Pectoral Fin

This paper describes the unsteady flow around a mechanical pectoral fin. An unsteady, multiblock, overlapping grid Navier-Stokes equation solver was developed to solve this problem. The drag-based swimming mode, which consists of rowing, flapping, and feathering motions, was selected as the fin motion. An unsteady flow past a fin body model that had the same motions was computed and compared with the experiments on the mechanical pectoral fin. The numerical timeaveraged and time-varied hydrodynamic forces were in good agreement with the measured data. In addition, the flow phenomenon around the fin was investigated from the flow visualization and computational results.
Experimental Investigation of Oblique Wing Aerodynamics at Low Speed

Abstract : In an effort to increase the range of missiles and guided bombs, the USAF is looking at options for new wing configurations. One such configuration being considered is oblique wings. An oblique wing is a wing that pivots about a point on the aircraft fuselage thereby having one side swept forward and the other swept aft. Additional interest is looking at a wing only configuration that also rotates with one wing tip forward of the other. Studies have shown that this configuration can provide less drag for a given lift at both supersonic cruise and subsonic loiter conditions. This experiment focused on the low speed performance of a missile model with an oblique wing. The wing was tested at seven different sweep angles and at two different speeds. In order to simulate the missile dropping from an aircraft the model was inverted over a stationary ground plane in the tunnel and tested at the same wing obliquity angles. Stalling was found at certain conditions including sweep angles of 0, 15, and 30 deg. The ground plane was shown to result in an increase in lift as well as an increase in drag. The ground plane was also shown to add more longitudinal stability, thus making the missile better performing when dropped from an aircraft.
Training and development of Internet of Things creative industry entrepreneurship models for UPI students

Today the development of electronic technology has reached the generation of the Internet of Things. IoT is a collection of objects (things), in the form of a physical device (hardware) that is able to exchange information between sources of information. The development of creative industries through IoT is expected to be a solution to keep entrepreneurship among students who will contribute to economic development. This Entrepreneurship PKM Activity was attended by 35 students from various study programs in the environment of DPTE FPTK UPI, and they followed this activity carefully starting from the stages of preparation, implementation, apprenticeship to the partner industry until the evaluation stage. Various innovative creations that combine technology with IoT utilization have been generated from the results of training activities, including, Smart Home, Automatic Glass Mixer With Blynk, Smart Building and Motor Controller. It is finding the future challenges and the existence of these business opportunities and as an effort to develop entrepreneurship in the field of information technology, especially those based on creative industries through the use of the Inetet of Things for UPI students, this PKM activity is one means to realize economic growth both locally, regionally and internationally.
FREEWAY LEVEL OF SERVICE: A REVISED APPROACH

Concepts, philosophies, and standards for freeway level of service presented in the 1965 Highway Capacity Manual are reviewed. A revised approach is developed that incorporates density in the definition of standards. Speed-flow relations under ideal conditions are approximated based on secondary source data and a limited number of pilot field surveys associated with current work. The recommendations made for new level-of-service standards for freeways are based on recalibrated speed-flow relations and incorporate density as a parameter. /Author/
Long-wave infrared (10-μm) free-space optical communication system

MAXIMA Corporation recently demonstrated a long-wave infrared (LWIR) communication system operating in the 8-12 μm atmospheric transmission window. All the components necessary to make commercially competitive LWIR Free Space Optics (FSO) systems have now been demonstrated. These include a high power, solid state, LWIR Quantum Cascade Laser (QCL), and a high temperature/high speed detector based on HgCdZnTe (MCZT) with near Background-Limited Infrared Photodetection (BLIP) sensitivity. These components overcome the hurdles of cost, size, and reliability that have heretofore constrained the deployment of LWIR FSO systems. This opens the window to exploit the advantages LWIR demonstrates regarding reduced susceptibility to background solar radiation and superior penetration of atmospheric obscurants such as fog, smoke and dust, as compared to visible and short wavelength infrared (SWIR) systems.
Oil palm trunk (OPT) as an alternative cellulosic material for brown paper production

The total estimated amount of available biomass from 1997 to 2000 for oil palm trunks (OPT), fronds (OPF) and empty fruit bunches (EFB) respectively are 4.34, 2.99, and 3.08 million tonnes per annum dry weight. The demand for pulp and paper products within Malaysia continues to grow at a considerable rate around 4 per cent per annum, and the trend expected to continue into the next decade. The research has indicated that the chemical composition of OPT fibers lie between that of hardwoods and that of softwoods material. Chemical pulping was used for pulping process because it produced pulp and paper of better properties than mechanical pulping. In this study, the beating effect of Soda-AQ pulp in term of fiber morphology, and mechanical properties such tensile, burst and tear indices was investigated. The pulp was beaten by using PFI Mill at five degree of beating; 15, 30, 45, 60 and 90 minutes. Hand-sheets were made from pulp samples taken at different times during the beating process and standard physical test were carried out. The fiber length decrease and fines were produced with the increasing of degree of beating. The soda pulp also gives the effect on drainage time which is increasing with the degree of beating. The content stock freeness (CSF) is decrease with the degree of beating cause of increasing the surface area to absorb water of fine fiber. The high degrees of beating give the strength paper which showed in tear, burst and tensile indices. The study showed that OPT pulp has a long fiber that can be used as a reinforcement component in paper production and become value-added products.
Further Study of Adsorption of Crude Oils onto Acetylated Corn Silk and its Kinetics and Equilibrium Isotherm

Oil spills from tanker or oil well have detrimental effects on environment and economy. One of the most economical and efficient methods for oil spill clean-up is mechanical extraction by sorbents which are not only the safest methods but also the least expensive of spill control. The potential use of agricultural by-products such as corn silk for adsorbent of crude oil from water systems was published in our previous work. In the current research, the percentage of acetylation and hydrophobicity of the treated corn silk were measured. The reflux time for the acetylation process was one of the primary parameters that enhanced the acetylation process. The characteristics of the enhanced corn silk was determined at different reflux times by FT-IR spectroscopy. The experimental data followed the pseudo second order kinetic model. The study suggested the Freundlich model show good correlation coefficients for the adsorption of crude oil on acetylated corn silk.
Guidelines for minimum standards on rabbit housing in Germany.

The main welfare indicators to assess rabbit housin g are mortality (unavoidable low), morbidity (unavoidable low), physiological parameters in the species-specific standard, species-specific behaviour and performance on a high level. The sing le housing of does with kits remains the main housing system in the near future which can be char acterized by detailed measures and parameters. Growing rabbits are mainly kept in groups with a te nd ncy towards pen housing with different kinds of enrichment (e.g. wooden sticks as gnawing materi al). In May 2007 guidelines for the housing of rabbits under the aspects of animal protection and welfare were published in Germany which are described in detail in the present paper. The minim um requirements for breeding and growing rabbits are summarized in two tables. Enriched cages should be used. The space for a breeding doe in single housing ranges between 2.000 and 4.800 cm 2 depending on body weight and the use of an elevate d seat. If an elevated platform is used the floor spa ce of the cage plus the space of the elevated seat plus the nest box space are added to available surface. The minimum height of a cage for the doe is 40, 60 cm respectively also depending on the use of a plat form. The elevated seat in a height of 25 cm should have a space of 1.000 cm . The size of the nest box is recommended with 800 cm and a height of 30 cm. The minimum space per growing rabbit should be 700 cm in groups up to 5 rabbits and 600 cm 2 in groups of more than 5 rabbits (per rabbit) with a stocking density of 40 kg/m . The minimum height of the cage for growing rabbits is 35 cm. The diame ter of the metal wire at the floor should be in minimum 3 mm. The width of slats should be in minim u 10 mm and in maximum 16 mm. The rabbits shall have permanent access to water of goo d quality. There are some guidelines regarding the animal-feeding place-ratio, the light program, the concentrations of ammonia and carbon dioxide in maximum and the frequency of daily controls of anim al health and the technical function of feed and water supply and of microclimate.
Psychological predictors in context: an empirical study of interactions between determinants of car use intentions

This paper is from the PhD work of Wall, the lead author, supervised by Devine-Wright and Mill. The work described here and in Output 1, and other parts of the thesis from which they were derived, was extensively cited in the DfT (2006) report “An Evidence Base Review of Public Attitudes to Climate Change and Transport Behaviour”.
On the use of Manchester violation test in anti-collision mechanism

In wireless device discovery process, anti-collision mechanism is deployed to sort out the identities of the concurrently responding devices. Operating based on Adaptive Tree Walk algorithm, the tree-based anti-collision scheme is suitable for the use in this context. In this paper, we describe the challenges of implementing the tree-based anti-collision scheme on wireless radios. The issues arise from noise, interference, and capture effect, which are commonly found in radio communication system. We suggest a countermeasure that is based on the use of Manchester violation (MV) test. Its performance has been evaluated on radio hardware, and the results reveal its capability of alleviating the problems. Keyword Wireless radio, device discovery, concurrent transmissions, anti-collision, Adaptive Tree Walk, noise, interference, capture effect, Manchester coding and violation