Conferences related to Absorption

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2019 13th European Conference on Antennas and Propagation (EuCAP)

The conference provides an overview of the state of the art developments and innovations in Antennas, Propagation, and Measurements, highlighting the latest requirements for future applications.


2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems & Eurosensors XXXIII (TRANSDUCERS & EUROSENSORS XXXIII)

The world's premiere conference in MEMS sensors, actuators and integrated micro and nano systems welcomes you to attend this four-day event showcasing major technological, scientific and commercial breakthroughs in mechanical, optical, chemical and biological devices and systems using micro and nanotechnology.The major areas of activity in the development of Transducers solicited and expected at this conference include but are not limited to: Bio, Medical, Chemical, and Micro Total Analysis Systems Fabrication and Packaging Mechanical and Physical Sensors Materials and Characterization Design, Simulation and Theory Actuators Optical MEMS RF MEMS Nanotechnology Energy and Power


2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)

Science, technology and applications spanning the millimeter-waves, terahertz and infrared spectral regions


2019 Chinese Control And Decision Conference (CCDC)

Chinese Control and Decision Conference is an annual international conference to create a forum for scientists, engineers and practitioners throughout the world to present the latest advancement in Control, Decision, Automation, Robotics and Emerging Technologies.

  • 2018 Chinese Control And Decision Conference (CCDC)

    Chinese Control and Decision Conference is an annual international conference to create a forum for scientists, engineers and practitioners throughout the world to present the latest advancement in Control, Decision, Automation, Robotics and Emerging Technologies.

  • 2017 29th Chinese Control And Decision Conference (CCDC)

    Chinese Control and Decision Conference is an annual international conference to create a forum for scientists, engineers and practitioners throughout the world to present the latest advancement in Control, Decision, Automation, Robotics and Emerging Technologies.

  • 2016 Chinese Control and Decision Conference (CCDC)

    Chinese Control and Decision Conference is an annual international conference to create aforum for scientists, engineers and practitioners throughout the world to present the latestadvancement in Control, Decision, Automation, Robotics and Emerging Technologies.

  • 2015 27th Chinese Control and Decision Conference (CCDC)

    Chinese Control and Decision Conference is an annual international conference to create a forum for scientists, engineers and practitioners throughout the world to present the latest advancement in Control, Decision, Automation, Robotics and Emerging Technologies.

  • 2014 26th Chinese Control And Decision Conference (CCDC)

    Chinese Control and Decision Conference is an annual international conference to create aforum for scientists, engineers and practitioners throughout the world to present the latestadvancement in Control, Decision, Automation, Robotics and Emerging Technologies.

  • 2013 25th Chinese Control and Decision Conference (CCDC)

    Chinese Control and Decision Conference is an annual international conference to create a forum for scientists, engineers and practitioners throughout the world to present the latest advancement in Control, Decision, Automation, Robotics and Emerging Technologies.

  • 2012 24th Chinese Control and Decision Conference (CCDC)

    Chinese Control and Decision Conference is an annual international conference to create a forum for scientists, engineers and practitioners throughout the world to present the latest advancement in Control, Decision, Automation, Robotics and Emerging Technologies.

  • 2011 23rd Chinese Control and Decision Conference (CCDC)

    Chinese Control and Decision Conference is an annual international conference to create a forum for scientists, engineers and practitioners throughout the world to present the latest advancement in Control, Decision, Automation, Robotics and Emerging Technologies.

  • 2010 Chinese Control and Decision Conference (CCDC)

    Chinese Control and Decision Conference is an annual international conference to create a forum for scientists, engineers and practitioners throughout the world to present the latest advancement in Control, Decision, Automation, Robotics and Emerging Technologies

  • 2009 Chinese Control and Decision Conference (CCDC)

    Chinese Control and Decision Conference is an annual international conference to create a forum for scientists, engineers and practitioners throughout the world to present the latest advancement in Control, Decision, Automation, Robotics and Emerging Technologies.

  • 2008 Chinese Control and Decision Conference (CCDC)


2019 IEEE 19th Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems (SiRF)

This is a set of five conferences with a focus on wireless components, applications and systems that affect both now and our future lifestyle. The main niche of these conferences is to bring together technologists, circuit designers, system designers and entrepreneurs at a single event. It was and is the place where these worlds meet, where new processes and systems can be benchmarked against the needs of circuit designers at the bleeding edge of RF systems. This is also an area where today's design compromises can trigger tomorrow's advanced technologies, where dreams can become a reality.


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Periodicals related to Absorption

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Antennas and Propagation, IEEE Transactions on

Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.


Antennas and Wireless Propagation Letters, IEEE

IEEE Antennas and Wireless Propagation Letters (AWP Letters) will be devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation.


Applied Superconductivity, IEEE Transactions on

Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission


Biomedical Circuits and Systems, IEEE Transactions on

The Transactions on Biomedical Circuits and Systems addresses areas at the crossroads of Circuits and Systems and Life Sciences. The main emphasis is on microelectronic issues in a wide range of applications found in life sciences, physical sciences and engineering. The primary goal of the journal is to bridge the unique scientific and technical activities of the Circuits and Systems ...


Biomedical Engineering, IEEE Transactions on

Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.


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Most published Xplore authors for Absorption

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Xplore Articles related to Absorption

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Ceramic dry-phantom and its application to SAR estimation

1991 IEEE MTT-S International Microwave Symposium Digest, 1991

A dry-phantom material having the same microwave properties as biological tissues was developed. The new phantom, composed of ceramics, overcomes various problems incidental to the conventional jelly phantom. Experiments were performed to estimate specific energy absorption rates of human heads exposed to microwave sources by using the thermography method.<<ETX>>


SAR Patterns from an Interstitial Microwave Antenna-Array Hyperthermia System

IEEE Transactions on Microwave Theory and Techniques, 1986

In recent years, a number of groups have been investigating the use of interstitial microwave antenna-array hyperthermia (IMAAH) systems for the treatment of superficial and deep-seated tumors. A critical parameter in any hyperthermia system is the SAR (specific absorption rate) pattern, which gives information about the energy absorption in the tumor and surrounding tissue. In this paper, we compare the ...


Human body modeling for FDTD evaluation of electromagnetic hazards

IEEE Antennas and Propagation Society International Symposium. 1996 Digest, 1996

Electromagnetic fields can obviously hurt living organisms if the strengths are great enough. We discuss the application of FDTD to computation of electromagnetic energy absorption by a human body. In particular, we are concerned with evaluating the specific absorption rate (SAR) in the different human tissues and organs given the EM environment to which the body is exposed.


Numerical evaluation of human exposure to EMP signals

2014 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium), 2014

SAVELEC (SAfe control of non cooperative Vehicles through ELECtromagnetic means) is a public funded project within the 7thFramework Program of the European Commission investigating how to slow down and/or stop a vehicle by disrupting some key electronic components, through the use of electromagnetic pulses (EMP) or high power microwaves (HPM), without any consequences on its occupants or any collateral damage. ...


The dependence of electromagnetic energy absorption upon human-head modeling at 1800 MHz

IEEE Transactions on Microwave Theory and Techniques, 1997

The authors of a previously published paper on the dependence of electromagnetic (EM) energy absorption concluded that homogeneous modeling of the human head is suited for assessing the spatial-peak absorption for transmitters operating at 900 MHz or below. Additional studies became necessary for the frequency bands utilized by new mobile communications systems (i.e., 1.5 and 2.5 GHz) since some peripheral ...


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Educational Resources on Absorption

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IEEE-USA E-Books

  • Ceramic dry-phantom and its application to SAR estimation

    A dry-phantom material having the same microwave properties as biological tissues was developed. The new phantom, composed of ceramics, overcomes various problems incidental to the conventional jelly phantom. Experiments were performed to estimate specific energy absorption rates of human heads exposed to microwave sources by using the thermography method.<<ETX>>

  • SAR Patterns from an Interstitial Microwave Antenna-Array Hyperthermia System

    In recent years, a number of groups have been investigating the use of interstitial microwave antenna-array hyperthermia (IMAAH) systems for the treatment of superficial and deep-seated tumors. A critical parameter in any hyperthermia system is the SAR (specific absorption rate) pattern, which gives information about the energy absorption in the tumor and surrounding tissue. In this paper, we compare the theoretical and measured values of the SAR distribution for an array of four 915-MHz antennas implanted on the corners of a 2-cm square array. The overall length of the antennas was assumed to be 7 cm theoretically and was either 6 or 7 cm for the measurements. In general, there was good agreement between the theoretical predictions and the experimental results. In particular, both theory and experiment demonstrated that the maximum SAR occurred in the junction plane of the antenna array and at the center of the square array. Similarly, both showed that the Iongitudinal extent of the heating pattern is about 5 cm for a single antenna, but closer to 3 cm for an array where the Iongitudinal extent is defined by the length in the longitudinal direction where the SAR is greater than 50 percent of the maximum. The experiments showed that the SAR patterns were quite reproducible, and that the use of double stub tuners to minimize the reflected power for each antenna resulted in poorer SAR patterns due to phase variations created by the tuners. However, the use of an attenuator with each antenna to equalize the maximum SAR from each antenna did improve the SAR distributions slightly.

  • Human body modeling for FDTD evaluation of electromagnetic hazards

    Electromagnetic fields can obviously hurt living organisms if the strengths are great enough. We discuss the application of FDTD to computation of electromagnetic energy absorption by a human body. In particular, we are concerned with evaluating the specific absorption rate (SAR) in the different human tissues and organs given the EM environment to which the body is exposed.

  • Numerical evaluation of human exposure to EMP signals

    SAVELEC (SAfe control of non cooperative Vehicles through ELECtromagnetic means) is a public funded project within the 7thFramework Program of the European Commission investigating how to slow down and/or stop a vehicle by disrupting some key electronic components, through the use of electromagnetic pulses (EMP) or high power microwaves (HPM), without any consequences on its occupants or any collateral damage. In the project, the effect of the EM signals on the operator, the car occupants and pedestrian bystanders are thoroughly studied, by analyzing human exposure through numerical simulation. Full-wave 3D EM simulations with Empire XCcelTMare used to calculate the exposure to these EMP/HPM fields. These simulations will to ensure that the recommended safety limits established by ICNIRP for the exposure to EM waves will not be exceeded.

  • The dependence of electromagnetic energy absorption upon human-head modeling at 1800 MHz

    The authors of a previously published paper on the dependence of electromagnetic (EM) energy absorption concluded that homogeneous modeling of the human head is suited for assessing the spatial-peak absorption for transmitters operating at 900 MHz or below. Additional studies became necessary for the frequency bands utilized by new mobile communications systems (i.e., 1.5 and 2.5 GHz) since some peripheral tissue layers have a thickness of the range of /spl lambda//4-/spl lambda//2. The results of the simulations combined with worst-case considerations confirmed the anticipated and more complex relationship between absorption and anatomical details at these higher frequencies. Nevertheless, a homogeneous representation of the head is suited for assessing the maximum specific absorption rate (SAR) in the head of the user of mobile telecommunication equipment (MTE) if the appropriate dielectric parameters are chosen.

  • Changes in Canopy and Branch Reflectance Along a S02 Gradient on Northern Vancouver Island

    None

  • FDTD Calculations of Specific Absorption Rate in Fetus Caused by Electromagnetic Waves From Mobile Radio Terminal Using Pregnant Woman Model

    Since the diversification of the electromagnetic (EM) environment is spreading, it is essential to estimate the EM energy absorption rate [specific absorption rate (SAR)] of a pregnant woman's body and her fetus under various exposure situations. This paper presents the EM dosimetry in a pregnant woman in proximity to a mobile-phone terminal using the numerical model of a woman in her seventh month of pregnancy (composed of 56 organs, which includes the intrinsic organs of a pregnant woman) based on the high-resolution whole-body voxel model of a Japanese adult woman. It was found that the SAR in the fetus strongly depends on the geometrical relationship between the fetus and the EM source, while the averaged SAR for the fetus is always lower than the RF safety guidelines under the exposure conditions investigated in this paper.

  • High Gain Resonant Ingaaias/ingaas Heterojunction Bipolar Phototransistor Grown by Molecular Beam Epitaxy

    None

  • Simulations of SAR Values for rSelected Telecommunications Devices

    Specific Absorption Rate (SAR) is a measure of the radiation absorbed by the human body during the use of the device generating the electromagnetic field. Its value is a measure of the maximum energy that is absorbed by a unit of mass of the exposed tissue of a person using a mobile device, at a specific time or simply, the power absorbed per unit of mass. The article concerns the basic theory related to the subject of SAR measurement, as well as the execution of own simulations in the CST Simulation environment, and analysis of the performed tests. The article presents the parameters of selected popular mobile devices, in particular wireless technologies and SAR values. Several antennas were designed to carry out the simulation. The SAR values for various scenarios have been calculated using the developed antenna models and the phantom of the body of the human being in the CST simulation environment.

  • MRI induced heating of pacemaker leads: effect of temperature probe positioning and pacemaker placement on lead tip heating and local SAR

    The radio frequency field used in magnetic resonance imaging (MRI) procedures leads to temperature and local absorption rate (SAR) increase for patients with implanted pacemakers (PM). In this work a methodological approach for temperature and SAR measurements using fluoroptic probes is presented. Experimental measures show how the position of temperature probes affects the temperature and SAR value measured at the lead tip. The transversal contact between the active portion of the probe and the lead tip is the configuration associated with the highest values for temperature and SAR, whereas other configurations may lead to an underestimation close to 11% and 70% for temperature and SAR, respectively. In addition measurements were performed on a human-shaped phantom inside a real MRI system, in order to investigate the effect of the PM placement and of the lead geometry on heating and local SAR



Standards related to Absorption

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IEEE Recommended Practice for Determining the Peak Spatial-Average Specific Absorption Rate (SAR) in the Human Head from Wireless Communications Devices: Measurement Techniques

To specify protocols for the measurement of the peak spatial-average specific absorption rate (SAR) in a simplified model of the head of users of hand-held radio transceivers used for personal wireless communications services and intended to be operated while held next to the ear. It applies to contemporary and future devices with the same or similar operational characteristics as contemporary ...


IEEE Recommended Practice for Measurements and Computations of Radio Frequency Electromagnetic Fields With Respect to Human Exposure to Such Fields, 100 kHz-300 GHz

Revise and develop specifications for preferred methods for measuring and computing external radiofrequency electromagnetic fields to which persons may be exposed. In addition, the document will specify preferred methods for the measurement and computation of the resulting fields and currents that are induced in bodies of humans exposed to these fields over the frequency range of 100 kHz to 300 ...


IEEE Standard for Safety Levels With Respect to Human Exposure to Electromagnetic Fields, 0-3 kHz

Develop safety levels for human exposure to electromagnetic fields from 0 to 3kHz. This standard will be based on the results of an evaluation of the relevant scientific literature and proven effects which are well established and for which thresholds of reaction are understood. Field limits will be derived from threshold current densities or internal electric fields.


IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz

Recommendations are made to protect against established adverse health effects in human beings associated with exposure to electric, magnetic and electromagnetic fields in the frequency range of 3 kHz to 300 GHz. The recommendations are expressed in terms of basic restrictions (BRs) and maximum permissible exposure (MPE) values. The BRs are limits on internal fields, specific absorption rate (SAR), and ...


Standard Requirements, Terminology, and Test Code for Bushings for DC Applications Rated 110 kV BIL and Above

This standard applies to outdoor and indoor power apparatus dc bushings of condenser type that have basic impulse insulation levels of 110 kV and above for use as components of oil-filled converter transformers and smoothing reactors, as well as air-to-air dc bushings. This standard does not apply to the following: a) High-voltage cable terminations (potheads) b) Bushings for instrument transformers ...



Jobs related to Absorption

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