In general, Micropower Impulse Radar (MIR) depends on Ultra-Wideband (UWB) transmission systems. UWB technology can supply innovative new systems and products that have an obvious value for radar and communications uses. Important applications include bridge-deck inspection systems, ground penetrating radar, mine detection, and precise distance resolution for such things as liquid level measurement. Most of these UWB inspection and measurement methods have some unique qualities, which need to be pursued. Therefore, in considering changes to Part 15 the FCC needs to take into account the unique features of UWB technology. MIR is applicable to two general types of UWB systems: radar systems and communications systems. Currently LLNL and its licensees are focusing on radar or radar type systems. LLNL is evaluating MIR for specialized communication systems. MIR is a relatively low power technology. Therefore, MIR systems seem to have a low potential for causing harmful interference to other users of the spectrum since the transmitted signal is spread over a wide bandwidth, which results in a relatively low spectral power density.

/pdf/response-to-fcc-98-208-notice-of-inquiry-in-the-matter-of-3attixctl7.pdf

Response to FCC 98-208 notice of inquiry in the matter of revision of part 15 of the commission's rules regarding ultra-wideband transmission systems

In recent years solar energy has received worldwide attention in the field of renewable energy systems Among the various research thrusts in solar PV, the most proverbial area is extracting maximum power from solar PV system Application dof Maximum Power Point Tracking (MPPT) for extracting maximum power is very much appreciated and holds the key in developing efficient solar PV system In this paper, a state of the art review on various maximum power point techniques for solar PV systems covering timeworn conventional methods and latest soft computing algorithms is presented To date critical analysis on each of the method in terms of (1) tracking speed, (2) algorithm complexity, (3) Dynamic tracking under partial shading and (4) hardware implementation is not been carried out In this regard the authors have attempted to compile a comprehensive review on various solar PV MPPT techniques based on the above criteria Further, it is envisaged that the information presented in this review paper will be a valuable gathering of information for practicing engineers as well as for new researchers

A comprehensive review on solar PV maximum power point tracking techniques

Considering the increase of urban population and traffic congestion, smart parking is always a strategic issue to work on, not only in the research field, but also from economic interests. Thanks to information and communication technology evolution, drivers can more efficiently find satisfying parking spaces with smart parking services. The existing and ongoing works on smart parking are complicated and transdisciplinary. While deploying a smart parking system, cities, as well as urban engineers, need to spend a very long time to survey and inspect all the possibilities. Moreover, many varied works involve multiple disciplines, which are closely linked and inseparable. To give a clear overview, we introduce a smart parking ecosystem and propose a comprehensive and thoughtful classification by identifying their functionalities and problematic focuses. We go through the literature over the period of 2000–2016 on parking solutions as they were applied to smart parking development and evolution, and propose three macro-themes: information collection, system deployment, and service dissemination. In each macro-theme, we explain and synthesize the main methodologies used in the existing works and summarize their common goals and visions to solve current parking difficulties. Finally, we give our engineering insights and show some challenges and open issues. Our survey gives an exhaustive study and a prospect in a multidisciplinary approach. Besides, the main findings of the current state-of-the-art throw out recommendations for future research on smart cities and the Internet architecture.

/pdf/a-survey-of-smart-parking-solutions-29hqwxlnoj.pdf

A Survey of Smart Parking Solutions

The modern electric power systems are going through a revolutionary change because of increasing demand of electric power worldwide, developing political pressure and public awareness of reducing carbon emission, incorporating large scale renewable power penetration, and blending information and communication technologies with power system operation. These issues initiated in establishing microgrid concept which has gone through major development and changes in last decade, and recently got a boost in its growth after being blessed by smart grid technologies. The objective of this paper is to presents a detailed technical overview of microgrid and smart grid in light of present development and future trend. First, it discusses microgrid architecture and functions. Then, smart features are added to the microgrid to demonstrate the recent architecture of smart grid. Finally, existing technical challenges, communication features, policies and regulation, etc. are discussed from where the future smart grid architecture can be visualized.

Enhancing smart grid with microgrids: Challenges and opportunities

chemical engineering chemical engineering essentials for, home american journal of chemical engineering, bachelor of science in chemical engineering american, specialty polymers high performance polymers solvay, chemical engineering degrees top universities, chemical process wikipedia, perry s chemical engineers handbook eighth edition, wolfram and mathematica solutions for chemical engineering, aquatherm engineering consultants india pvt ltd edit, naval reserve officers training corps scholarship, college of engineering california state university long, unit and door heaters armstrong international, chemical engineering cput, water treatment products and services h2o engineering, journal of chemical amp engineering data acs publications, wbdg wbdg whole building design guide, chemical engineering for non chemical engineers aiche, proposed syllabus for b tech program in chemical engineering, phase out of the national diploma in chemical engineering, chemical engineering free books at ebd, operations council sgs, chemical plants india caustic soda plants chemical plants, martindale s calculators on line center mathematics, kraft recovery operations course tappi org, patent technology centers management uspto, chemical recycling makes waste plastic a resource, faculty of engineering amp technology vaal university of, chemical engineer wikipedia, index chemical engineering conferences asia events, european training network for chemical engineering, diploma of engineering curtin college, search unit standards south african qualifications authority, bcit chemical and environmental technology process, perry s chemical engineers handbook 9th edition, electrical amp systems engineering washington university, csulb chemical engineering california state university, visual encyclopedia of chemical engineeringabout gold membership gold level membership allows you full access to the chemical engineering archives dating back to 1986 quickly search and retrieve all articles and back issues, in chemical engineering process design is the design of processes for desired physical and or chemical transformation of materials process design is central to chemical engineering and it can be considered to be the summit of that field bringing together all of the fields components, at the department of chemical engineering we provide you with a challenging and contemporary chemical engineering degree program enhanced by the research accomplishments of our faculty members we value excellence in teaching quality research and service along with the intellectual development of students in a challenging rewarding academic environment, the largest selection of the highest performing polymers solvay is the industry leader in specialty polymers offering the broadest selection of high performance thermoplastic resins fluoroelastomers and fluorinated fluids, what is chemical engineering so what is chemical engineering chemical engineering is a multi disciplinary branch of engineering that combines natural and experimental sciences such as chemistry and physics along with life sciences such as biology microbiology and biochemistry plus mathematics and economics to design develop produce transform transport operate and manage the, in a scientific sense a chemical process is a method or means of somehow changing one or more chemicals or chemical compounds such a chemical process can occur by itself or be caused by an outside force and involves a chemical reaction

Unit Operations Of Chemical Engineering

Ultra-wideband (UWB) technology can offer broad capacity, short-range communications at a relatively low level of energy usage, which is very desirable for wireless body area networks (WBANs). The involvement of the human body in such a device poses immense difficulties for both the architecture of the wearable antenna and the broadcast model. Initially, the bonding between the wearable antenna and the human body should also be acknowledged in the early stages of the design, so that both the potentially degrading output of the antenna as a consequence of the body and the possibility of exposure for the body may be handled. Next, the transmission path in WBAN is affected by the constant activity of the human body, leading to the time-varying dispersion of electromagnetic waves. Few researchers were interested in this field, and some substantial progress has recently been considered. On the other hand, this paper covered both wearable and Non-wearable UWB antenna designs and applications with respect to their substrate characteristics. Finally, this review prospectively exposes the upgraded developments of (ON-OFF) body antennas in the area of wearable and Non-wearable UWB and their implementations in the WBAN device and aims to evaluate the latest design features that inspire the performance of the antennas.

/pdf/on-off-body-ultra-wideband-uwb-antenna-for-wireless-body-pw985s2rr5.pdf

ON-OFF Body Ultra-Wideband (UWB) Antenna for Wireless Body Area Networks (WBAN): A Review

This paper presents a MATLAB simulation of fuzzy traffic controller for controlling traffic flow at multilane isolated signalized intersection. The controller is developed based on the waiting time and vehicles queue
length at current green phase, and vehicles queue lengths
at the other phases. For control strategy, the controller
controls the traffic light timings and phase sequence to
ensure smooth flow of traffic with minimal waiting time,
queue length and delay time. In this research, the isolated
intersection model used consists of two lanes in each
approach. Each approach has two different values of
vehicles queue length and waiting time, respectively, at the
intersection. The maximum values of vehicles queue length
and waiting times are selected as the inputs to controller
for optimized control of traffic flows at the intersection. A traffic model and fuzzy traffic controller are developed to evaluate the performance of traffic controllers under
different conditions. In the end, by comparing the
experimental result obtained by the vehicle-actuated
controller (VAC) and fuzzy traffic controller (FTC) which
improves significant performance for intersections, we
confirmed the efficiency of our intelligent controller based
fuzzy inference system.

MATLAB Simulation of Fuzzy Traffic Controller for Multilane Isolated Intersection

This paper proposes an adaptive perturb and observe (P&O)-fuzzy control maximum power point tracking (MPPT) for photovoltaic (PV) boost dc-dc converter. The proposed technique combines both advantages of P&O and fuzzy logic technique. P&O is known as very simple and widely used in the market and fuzzy is also simple and provides fast response. Combination of them should improve MPPT's performance especially with existing of noise. For comparative evaluation, conventional P&O and conventional fuzzy logic have been developed. All the algorithms together with PV module of Kyocera KD210GH-2PU connected to PV boost dc-dc converter were simulated in MATLAB-Simulink respectively. Performance assessment covers overshoot, time response, oscillation and stability as described further in this paper.

Adaptive P&O-fuzzy control MPPT for PV boost dc-dc converter

Solar energy has a major role in renewable energy
resources. Solar Cell as a basement of solar system has attracted lots
of research. To conduct a study about solar energy system, an
authenticated model is required. Diode base PV models are widely
used by researchers. These models are classified based on the number
of diodes used in them. Single and two-diode models are well
studied. Single-diode models may have two, three or four elements.
In this study, these solar cell models are examined and the simulation
results are compared to each other. All PV models are re-designed in
the Matlab/Simulink software and they examined by certain test
conditions and parameters. This paper provides comparative studies
of these models and it tries to compare the simulation results with
manufacturer’s data sheet to investigate model validity and accuracy.
The results show a four- element single-diode model is accurate and
has moderate complexity in contrast to the two-diode model with
higher complexity and accuracy.

A Comparative Study of PV Models in Matlab/Simulink

This manuscript presents a significant work in improving the current harmonics extraction algorithm and indirectly improving the injection current produced by a single-phase Photovoltaic Shunt Active Power Filter (PV SAPF). Improvement to the existing adaptive linear neuron (ADALINE) technique has been carried out, leading to the formation of a simpler ADALINE; it is expected to perform as fast as the current harmonics extraction algorithm. Further analysis on the DC link capacitor control algorithm, called “self-charging with step size error cancellation”, was also done to inspect the performance of the algorithm in a single-phase photovoltaic shunt active power filter system. Both algorithms, configured in single-phase PV SAPF, were simulated in MATLAB/Simulink (R2012b). A laboratory prototype was developed, and the algorithms were computed on a TMS320F28335 Digital Signal Processing (DSP) board for hardware implementation purposes. From the acquired results, the simpler ADALINE algorithm has effectively performed with lower total harmonic Distortion (THD) and outstanding compensation. The established algorithm of self-charging with step size error cancellation works well with single-phase PV SAPF and has shown less overshoot, a fast response time, and minimal energy losses.

https://www.mdpi.com/1996-1073/11/5/1152/pdf

Azura Che Soh

Papers

ON-OFF Body Ultra-Wideband (UWB) Antenna for Wireless Body Area Networks (WBAN): A Review

MATLAB Simulation of Fuzzy Traffic Controller for Multilane Isolated Intersection

Adaptive P&O-fuzzy control MPPT for PV boost dc-dc converter

A Comparative Study of PV Models in Matlab/Simulink

Photovoltaic Integrated Shunt Active Power Filter with Simpler ADALINE Algorithm for Current Harmonic Extraction