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Noreland, Daniel
Publications (10 of 12) Show all publications
Wadbro, E. & Noreland, D. (2019). Continuous transportation as a material distribution topology optimization problem. Structural and multidisciplinary optimization (Print), 59, 1471-1482
Open this publication in new window or tab >>Continuous transportation as a material distribution topology optimization problem
2019 (English)In: Structural and multidisciplinary optimization (Print), ISSN 1615-147X, E-ISSN 1615-1488, Vol. 59, p. 1471-1482Article in journal (Refereed) Published
Abstract [en]

The problem of moving a commodity with a given initial mass distribution to a pre-specified target mass distribution so that the total work is minimized can be traced back at least to Monge’s work from 1781. Here, we consider a version of this problem aiming to minimize a combination of road construction and transportation cost by determining, at each point, the local direction of transportation. This paper covers the modeling of the problem, highlights how it can be formulated as a material distribution topology optimization problem, and shows some results.

Place, publisher, year, edition, pages
Springer Berlin/Heidelberg, 2019
Keywords
Topology optimization, Continuous transportation, Road design, Large-scale problems
National Category
Computational Mathematics
Identifiers
urn:nbn:se:umu:diva-154290 (URN)10.1007/s00158-018-2140-y (DOI)000464743400005000464743400005 ()2-s2.0-85058044832 (Scopus ID)
Available from: 2018-12-14 Created: 2018-12-14 Last updated: 2019-05-28Bibliographically approved
Berggren, M., Bernland, A. & Noreland, D. (2018). Acoustic boundary layers as boundary conditions. Journal of Computational Physics, 371, 633-650
Open this publication in new window or tab >>Acoustic boundary layers as boundary conditions
2018 (English)In: Journal of Computational Physics, ISSN 0021-9991, E-ISSN 1090-2716, Vol. 371, p. 633-650Article in journal (Refereed) Published
Abstract [en]

The linearized, compressible Navier-Stokes equations can be used to model acoustic wave propagation in the presence of viscous and thermal boundary layers. However, acoustic boundary layers are notorious for invoking prohibitively high resolution requirements on numerical solutions of the equations. We derive and present a strategy for how viscous and thermal boundary-layer effects can be represented as a boundary condition on the standard Helmholtz equation for the acoustic pressure. This boundary condition constitutes an O (delta) perturbation, where delta is the boundary-layer thickness, of the vanishing Neumann condition for the acoustic pressure associated with a lossless sound-hard wall. The approximate model is valid when the wavelength and the minimum radius of curvature of the wall is much larger than the boundary layer thickness. In the special case of sound propagation in a cylindrical duct, the model collapses to the classical Kirchhoff solution. We assess the model in the case of sound propagation through a compression driver, a kind of transducer that is commonly used to feed horn loudspeakers. Due to the presence of shallow chambers and thin slits in the device, it is crucial to include modeling of visco-thermal losses in the acoustic analysis. The transmitted power spectrum through the device calculated numerically using our model agrees well with computations using a hybrid model, where the full linearized, compressible Navier-Stokes equations are solved in the narrow regions of the device and the inviscid Helmholtz equations elsewhere. However, our model needs about two orders of magnitude less memory and computational time than the more complete model. 

Place, publisher, year, edition, pages
Elsevier, 2018
Keywords
Acoustics, Visco-thermal boundary layers, Helmholtz equation, Wentzell boundary condition, Compression driver
National Category
Fluid Mechanics and Acoustics Computational Mathematics
Identifiers
urn:nbn:se:umu:diva-150643 (URN)10.1016/j.jcp.2018.06.005 (DOI)000438393900031 ()2-s2.0-85048401964 (Scopus ID)
Funder
Swedish Research Council, 621-2013-3706Swedish Foundation for Strategic Research , AM13-0029
Available from: 2018-08-31 Created: 2018-08-31 Last updated: 2018-08-31Bibliographically approved
Badariah Asan, N., Hassan, E., Velander, J., Redzwan Mohd Shah, S., Noreland, D., Blokhuis, T. J., . . . Augustine, R. (2018). Characterization of the Fat Channel for Intra-Body Communication at R-Band Frequencies. Sensors, 18(9), Article ID 2752.
Open this publication in new window or tab >>Characterization of the Fat Channel for Intra-Body Communication at R-Band Frequencies
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2018 (English)In: Sensors, ISSN 1424-8220, E-ISSN 1424-8220, Vol. 18, no 9, article id 2752Article in journal (Refereed) Published
Abstract [en]

In this paper, we investigate the use of fat tissue as a communication channel between in-body, implanted devices at R-band frequencies (1.7–2.6 GHz). The proposed fat channel is based on an anatomical model of the human body. We propose a novel probe that is optimized to efficiently radiate the R-band frequencies into the fat tissue. We use our probe to evaluate the path loss of the fat channel by studying the channel transmission coefficient over the R-band frequencies. We conduct extensive simulation studies and validate our results by experimentation on phantom and ex-vivo porcine tissue, with good agreement between simulations and experiments. We demonstrate a performance comparison between the fat channel and similar waveguide structures. Our characterization of the fat channel reveals propagation path loss of ∼0.7 dB and ∼1.9 dB per cm for phantom and ex-vivo porcine tissue, respectively. These results demonstrate that fat tissue can be used as a communication channel for high data rate intra-body networks.

Place, publisher, year, edition, pages
MDPI, 2018
Keywords
intra-body communication, path loss, microwave probes, channel characterization, fat tissue, ex-vivo, phantom, dielectric properties, topology optimization
National Category
Communication Systems Computer Sciences Medical Laboratory and Measurements Technologies
Identifiers
urn:nbn:se:umu:diva-150977 (URN)10.3390/s18092752 (DOI)000446940600011 ()30134629 (PubMedID)2-s2.0-85052218591 (Scopus ID)
Funder
eSSENCE - An eScience Collaboration, 5700-15103VINNOVA, 2015-04159Swedish Foundation for Strategic Research , RIT17-0020
Available from: 2018-08-21 Created: 2018-08-21 Last updated: 2018-12-13Bibliographically approved
Asan, N. B., Redzwan, S., Rydberg, A., Augustine, R., Noreland, D., Hassan, E. & Voigt, T. (2017). Human Fat Tissue: A Microwave Communication Channel. In: 2017 First IEEE MTT-S International Microwave Bio Conference (IMBIOC): . Paper presented at 1st IEEE MTT-S International Microwave Bio Conference (IMBioC), Gothenburg, Sweden, 15-17 May, 2017. IEEE
Open this publication in new window or tab >>Human Fat Tissue: A Microwave Communication Channel
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2017 (English)In: 2017 First IEEE MTT-S International Microwave Bio Conference (IMBIOC), IEEE, 2017Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, we present an approach for communication through human body tissue in the R-band frequency range. This study examines the ranges of microwave frequencies suitable for intra-body communication. The human body tissues are characterized with respect to their transmission properties using simulation modeling and phantom measurements. The variations in signal coupling with respect to different tissue thicknesses are studied. The simulation and phantom measurement results show that electromagnetic communication in the fat layer is viable with attenuation of approximately 2 dB per 20 mm.

Place, publisher, year, edition, pages
IEEE, 2017
Keywords
tissue characterization, transmission medium, biomedical sensor, channel model, phantom measurement
National Category
Medical Laboratory and Measurements Technologies
Identifiers
urn:nbn:se:umu:diva-163054 (URN)10.1109/IMBIOC.2017.7965801 (DOI)000463704900034 ()978-1-5386-1713-7 (ISBN)
Conference
1st IEEE MTT-S International Microwave Bio Conference (IMBioC), Gothenburg, Sweden, 15-17 May, 2017
Available from: 2019-09-09 Created: 2019-09-09 Last updated: 2019-09-09Bibliographically approved
Asan, N. B., Noreland, D., Hassan, E., Shah, S. R., Rydberg, A., Blokhuis, T. J., . . . Augustine, R. (2017). Intra-body microwave communication through adipose tissue. Healthcare technology letters, 4(4), 115-121
Open this publication in new window or tab >>Intra-body microwave communication through adipose tissue
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2017 (English)In: Healthcare technology letters, E-ISSN 2053-3713, Vol. 4, no 4, p. 115-121Article in journal (Refereed) Published
Abstract [en]

The human body can act as a medium for the transmission of electromagnetic waves in the wireless body sensor networks context. However, there are transmission losses in biological tissues due to the presence of water and salts. This Letter focuses on lateral intra-body microwave communication through different biological tissue layers and demonstrates the effect of the tissue thicknesses by comparing signal coupling in the channel. For this work, the authors utilise the R-band frequencies since it overlaps the industrial, scientific and medical radio (ISM) band. The channel model in human tissues is proposed based on electromagnetic simulations, validated using equivalent phantom and ex-vivo measurements. The phantom and ex-vivo measurements are compared with simulation modelling. The results show that electromagnetic communication is feasible in the adipose tissue layer with a low attenuation of approximate to 2 dB per 20 mm for phantom measurements and 4 dB per 20 mm for ex-vivo measurements at 2 GHz. Since the dielectric losses of human adipose tissues are almost half of ex-vivo tissue, an attenuation of around 3 dB per 20 mm is expected. The results show that human adipose tissue can be used as an intra-body communication channel.

Place, publisher, year, edition, pages
The Institution of Engineering and Technology, 2017
Keywords
electromagnetic wave transmission, body sensor networks, biological tissues, phantoms, dielectric losses, wireless body sensor networks, transmission losses, water, salts, lateral intrabody microwave communication, biological tissue layers, tissue thicknesses, signal coupling, R-band frequencies, industrial radio band, scientific radio band, medical radio band, electromagnetic simulations, equivalent phantom, ex-vivo measurements, adipose tissue layer, phantom measurements
National Category
Medical Engineering Biomedical Laboratory Science/Technology
Identifiers
urn:nbn:se:umu:diva-139151 (URN)10.1049/htl.2016.0104 (DOI)000408370500001 ()
Available from: 2017-09-14 Created: 2017-09-14 Last updated: 2018-06-09Bibliographically approved
Asan, N. B., Velander, J., Redzwan, S., Augustine, R., Hassan, E., Noreland, D., . . . Blokhuis, T. J. (2017). Reliability of the Fat Tissue Channel for Intra-body Microwave Communication. In: 2017 IEEE Conference on Antenna Measurements & Applications (CAMA): . Paper presented at IEEE Conference on Antenna Measurements and Applications (CAMA), DEC 04-06, 2017, Tsukuba, JAPAN (pp. 310-313). IEEE
Open this publication in new window or tab >>Reliability of the Fat Tissue Channel for Intra-body Microwave Communication
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2017 (English)In: 2017 IEEE Conference on Antenna Measurements & Applications (CAMA), IEEE , 2017, p. 310-313Conference paper, Published paper (Refereed)
Abstract [en]

Recently, the human fat tissue has been proposed as a microwave channel for intra-body sensor applications. In this work, we assess how disturbances can prevent reliable microwave propagation through the fat channel. Perturbants of different sizes are considered. The simulation and experimental results show that efficient communication through the fat channel is possible even in the presence of perturbants such as embedded muscle layers and blood vessels. We show that the communication channel is not affected by perturbants that are smaller than 15 mm cube.

Place, publisher, year, edition, pages
IEEE, 2017
Series
IEEE Conference on Antenna Measurements & Applications, ISSN 2474-1760
Keywords
microwaves, dielectric properties, fat channel, intra-body communication, phantom
National Category
Clinical Science
Identifiers
urn:nbn:se:umu:diva-145629 (URN)10.1109/CAMA.2017.8273435 (DOI)000425256200088 ()978-1-5090-5028-4 (ISBN)
Conference
IEEE Conference on Antenna Measurements and Applications (CAMA), DEC 04-06, 2017, Tsukuba, JAPAN
Available from: 2018-03-13 Created: 2018-03-13 Last updated: 2018-06-09Bibliographically approved
Hassan, E., Noreland, D., Wadbro, E. & Berggren, M. (2017). Topology Optimisation of Wideband Coaxial-to-Waveguide Transitions. Scientific Reports, 7, Article ID 45110.
Open this publication in new window or tab >>Topology Optimisation of Wideband Coaxial-to-Waveguide Transitions
2017 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 7, article id 45110Article in journal (Refereed) Published
Abstract [en]

To maximize the matching between a coaxial cable and rectangular waveguides, we present a computational topology optimisation approach that decides for each point in a given domain whether to hold a good conductor or a good dielectric. The conductivity is determined by a gradient-based optimisation method that relies on finite-difference time-domain solutions to the 3D Maxwell’s equations. Unlike previously reported results in the literature for this kind of problems, our design algorithm can efficiently handle tens of thousands of design variables that can allow novel conceptual waveguide designs. We demonstrate the effectiveness of the approach by presenting optimised transitions with reflection coefficients lower than −15dB over more than a 60% bandwidth, both for right-angle and end-launcher configurations. The performance of the proposed transitions is crossverified with a commercial software, and one design case is validated experimentally.

Keywords
topology optimization, finite-difference time- domain (FDTD), adjoint-field problem, waveguides, coaxial cable, transitions design, end-launcher.
National Category
Computer Sciences
Identifiers
urn:nbn:se:umu:diva-102577 (URN)10.1038/srep45110 (DOI)000397137700001 ()
Funder
Swedish Research Council, 621-2013-3706
Available from: 2015-04-28 Created: 2015-04-28 Last updated: 2018-06-07Bibliographically approved
Hägg, L., Wadbro, E., Noreland, D. & Berggren, M. (2015). 1D-model of the interaction between a stack of wood and an imposed electromagnetic wave.
Open this publication in new window or tab >>1D-model of the interaction between a stack of wood and an imposed electromagnetic wave
2015 (English)Manuscript (preprint) (Other academic)
Abstract [en]

We have developed and investigated a 1D-model for the interaction between a stack of wood and an impinging electromagnetic field. Maxwell's equations are used to model the electromagnetic interaction and each layer in a stack of boards has been modeled as a homogenous lossy dielectric slab. The main reason for developing this model has been to investigate the possibility of measuring the moisture content of wood inside a drying kiln using electromagnetic waves. Our investigations show that it is in principle possible to measure the moisture content, since the electromagnetic field is sensitive to changes in the moisture content of the wood. We also show that it might be possible to measure the average moisture content, without detailed knowledge of the distribution of moisture content between different boards.

Keywords
moisture content, wood, electromagnetic, non-invasive measurement
National Category
Computational Mathematics Other Environmental Engineering
Identifiers
urn:nbn:se:umu:diva-112582 (URN)
Funder
eSSENCE - An eScience Collaboration
Available from: 2015-12-11 Created: 2015-12-10 Last updated: 2018-06-07Bibliographically approved
Hassan, E., Noreland, D., Augustine, R., Wadbro, E. & Berggren, M. (2015). Topology optimization of planar antennas for wideband near-field coupling. IEEE Transactions on Antennas and Propagation, 63(9), 4208-4213
Open this publication in new window or tab >>Topology optimization of planar antennas for wideband near-field coupling
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2015 (English)In: IEEE Transactions on Antennas and Propagation, ISSN 0018-926X, E-ISSN 1558-2221, Vol. 63, no 9, p. 4208-4213Article in journal (Refereed) Published
Abstract [en]

We present an approach to design from scratch planar microwave antennas for the purpose of ultra-wideband (UWB) near-field sensing. Up to about 120 000 design variables associated with square grids on planar substrates are subject to design, and a numerical optimization algorithm decides, after around 200 iterations, for each edge in the grid whether it should consist of metal or a dielectric. The antenna layouts produced with this approach show UWB impedance matching properties and near-field coupling coefficients that are flat over a much wider frequency range than a standard UWB antenna. The properties of the optimized antennas are successfully cross-verified with a commercial software and, for one of the designs, also validated experimentally. We demonstrate that an antenna optimized in this way shows a high sensitivity when used for near-field detection of a phantom with dielectric properties representative of muscle tissue.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2015
Keywords
adjoint-field problem, ultra-wideband antennas (UWB), directivity, Vivaldi antenna, microwave sensing
National Category
Computer Sciences
Identifiers
urn:nbn:se:umu:diva-102572 (URN)10.1109/TAP.2015.2449894 (DOI)000360803400050 ()
Note

Originally published in thesis in manuscript form.

Available from: 2015-04-28 Created: 2015-04-28 Last updated: 2018-06-07Bibliographically approved
Noreland, D., Kergomard, J., Laloe, F., Vergez, C., Guillemain, P. & Guilloteau, A. (2013). The Logical Clarinet: Numerical Optimization of the Geometry of Woodwind Instruments. Acta Acoustica united with Acustica, 99(4), 615-628
Open this publication in new window or tab >>The Logical Clarinet: Numerical Optimization of the Geometry of Woodwind Instruments
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2013 (English)In: Acta Acoustica united with Acustica, ISSN 1610-1928, E-ISSN 1861-9959, Vol. 99, no 4, p. 615-628Article in journal (Refereed) Published
Abstract [en]

The tone hole geometry of a clarinet is optimized numerically. The instrument is modeled as a network of one dimensional transmission line elements. For each (non-fork) fingering, we first calculate the resonance frequencies of the input impedance peaks, and compare them with the frequencies of a mathematically even chromatic scale (equal temperament). A least square algorithm is then used to minimize the differences and to derive the geometry of the instrument. Various situations are studied, with and without dedicated register hole and/or enlargement of the bore. With a dedicated register hole, the differences can remain less than 10 musical cents throughout the whole usual range of a clarinet. The positions, diameters and lengths of the chimneys vary regularly over the whole length of the instrument, in contrast with usual clarinets. Nevertheless, we recover one usual feature of instruments, namely that gradually larger tone holes occur when the distance to the reed increases. A fully chromatic prototype instrument has been built to check these calculations, and tested experimentally with an artificial blowing machine, providing good agreement with the numerical predictions.

National Category
Computer Sciences
Identifiers
urn:nbn:se:umu:diva-79427 (URN)10.3813/AAA.918641 (DOI)000321816500012 ()
Available from: 2013-09-03 Created: 2013-08-19 Last updated: 2018-06-08Bibliographically approved
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