Mrs I Osborne Loule, Christina Hardyment, John Coleman, Robert Hewlson, Kenneth McLeish, Barbara Hall, Thousand Hills, Joan Bakewell, Andrew Eames, Jon Swain, Peter Fletcher, Anthony Clare, Peter Gillman, Rob Hughes, John Peter, Mark Reason, Jeffrey Rose Chairman, Eric Dymock, Sarah Miller, Jill Hartley, Nick Rufford, John Diamond, Neville Hodgkinson Medical Correspondent, Graham Rose, Priscilla Boniface, Nicolette Jones, Sally Payne, Linda Taylor, Arthur Appleton, Colin Tudge, Timothy Ross, Jason Tomas, Mark Hosenball, Edward Welsh, Carol Sarler, Caroline St John-Brooks, Robin Hanbury-Tenison, Jon Craig, Judi Bevan Deputy City Editor, Patrick Stoddart, Susan Marling, Robert Sandall, Thomas Goltz, Alex Sutherland, Iain Johnstone, John Garth Wilkinson, Mama Mla's, Irwin Stelzer, Peter Godwin, Ivan Fallon, Deryk Brown, Joe Irving, Cliff Temple, Jane Bird, Robert Turnbill, Philip Beresford Industrial Editor, John Swain, Richard Paimer Environment Correspondent, Drew, Peter Wellman, David Cairns, Adrianne Blue, Norman Harris, Gill Harley, Geoff Whitten, Rebecca Fraser, George Perry, Sue Mott, John Cassidy, Robin Marlar, Phillips, Marion Devine, Paul Golding, Bernard Cafferty, Brian Moynahan, Paul Donovan, Marina Johnson, Martin Fowkes, Sally Courtis, Jeff Randall, James Adams, Michael Holroyd's, Michael Woods, Desmond Billing, Austin MacCurtain, Tim Rayment, Clare Boylan, Mazher Mahmood, Elizabeth Grice, David Lawrenson, John Hopkins, Judi Bevan, Brian Walden, Denis Herbstein, Eric Marsden, Gareth David, Brian Reading, Stephen Pile, Marie Colvin, Diana Wright, Stephen Clingman, Los Angeles, Stephen Jones, Phillip Schofield, Richard Palmer, Andrew Grice, Kate Cruise O'Brien, Peter Porter, Keith Wheatley, Nick Rufford Science Correspondent, Stephen Davis, Colin McDowell, Dilys Powell, Jonathan Brenton, Ben Pimlott, Brough Scott, Stephen Logan, Deyan Sudjic, Tony Rocca, Caroline McGhie, Richard Woods, Louise Branson, R M Bircumshaw, Maurice Chittenden, Barrie Penrose, Iola Smith, Felix Aprahamian, Sir Cyril Smith, John Harrison, Philip Beresford, D C Dickson, Roy Greenslade, Dr Sidney Holt Scientific Advisor, Brian Glanville, Allen Robertson, Edward Pearce, Nadine Meisner, Simon Jenkins, Godfrey Golzen, Jon Craig Home Affairs Correspondent, Deirdre Fernand, John Spurling, Andrew Likierman, Arthur Jacobs, Hamilton Bland, Ian Williams, Mike Hurrell, Victor Bryant, Malcolm Hulme, Marina Vaizey, Valerie Grove, Brian Moynahan European Editor, Avignolo Maria-Laura, Margaret Park, Rosemary Collins, Robin Marier, Gerard Kiley, Penny Perrick, Tony Hetherington, N Thomas, Eric Hammond, Joanna Simon, Pauline Peters, Jon Connell, Boris Schapiro, Ted Senet,
... believability Film Bakewell's View Joan Bakewell on Indoor pursuits Riverside studios In scale with Arden Toeing ... Consultants (U. K.) Ltd. A Member of the Sic PLC Group McCourt Consultants Ltd CJA Recruitment Consultants ...
1988 - Gale Group | Sunday Times HA GDA
Donatella Puglisi, Jens Eriksson, Christian Bur, Andreas Schuetze, Anita Lloyd Spetz, Mike Andersson,
Abstract. High-temperature iridium-gated field effect transistors based on silicon carbide have been used for sensitive detection of specific volatile organic compounds (VOCs) in concentrations of health concern, for indoor air quality monitoring and control. Formaldehyde, naphthalene, and benzene were studied as hazardous VOCs at parts per billion (ppb) down to sub-ppb levels. The sensor performance and characteristics were investigated at a constant temperature of 330 °C and at different levels of ...
Tópico(s): Water Quality Monitoring and Analysis
2015 - Copernicus Publications | Journal of sensors and sensor systems
Xiangyu Wu, Ying Shen, Youxi Tang,
... the single-antenna full-duplex self-interference channel (SIC) is investigated in the indoor environments. The measurements are performed at the center ...
Tópico(s): Polyomavirus and related diseases
2014 - IEEE Antennas & Propagation Society | IEEE Antennas and Wireless Propagation Letters
Ximeng Xu, Fenli Zheng, Qiuhong Tang, Glenn V. Wilson, Min Wu, Yong Han, Peiqing Xiao, XC Zhang,
... varied from 4.6% to 88.6%. In indoor simulations, the SIC changed from 24.9% to 87.5%. Indoor simulation experiments with a range of 0–378.2 g L−1 sediment concentration supplied by a feeder box, showed that SIC linearly decreased as sediment concentration of upslope inflow ... to the designed extreme rainfall in laboratory simulations), SIC also generally decreased as sediment concentration of upslope inflow increased, especially when sediment concentration of upslope inflow was smaller than 400 g L−1. Thus, laboratory simulations verified the field monitoring results of extreme rainfall events with large rainfall amounts and intensities. This study illustrated the necessity of in-situ field monitoring and indicated that design of indoor simulation experiments needs more comprehensive considerations on complicated ...
Tópico(s): Aeolian processes and effects
2021 - Elsevier BV | CATENA
Christian Bur, Manuel Bastuck, Donatella Puglisi, Andreas Schütze, Anita Lloyd Spetz, Mike Andersson,
... sensitive field effect transistors based on silicon carbide, SiC-FETs, have been studied for indoor air quality applications. The selectivity of the sensors ...
Tópico(s): Gas Sensing Nanomaterials and Sensors
2015 - Elsevier BV | Sensors and Actuators B Chemical
Manuel Augusto Vieira, M. Vieira, P. Louro, V. Silva, Pedro Vieira,
... self-amplification. The proposed coding is based on SiC technology. Based on that, we present a way to achieve indoor localization using the parity bits and a navigation ... accurate positional information processes, and the design of SiC navigation syndrome generators are discussed and tested. A visible multilateration method estimates the position of the device using the decoded information received from several noncollinear transmitters. The location and motion information is found by mapping position and estimates the location areas. Since the indoor position of the light-emitting diode light source ...
Tópico(s): Advanced Optical Sensing Technologies
2016 - SPIE | Optical Engineering
Michaela Kendall, Bernie M. Hutton, Terry Tetley, Mark Nieuwenhuijsen, Edward Wigzell, Frances H. Jones,
... clean air site, NO3−, NH4+, amide, SO42− and SiC from the urban air site and SiO2 from the indoor smoke site; these species were deemed to be ...
Tópico(s): Atmospheric chemistry and aerosols
2001 - Elsevier BV | Applied Surface Science
Ali H.A. Al‐Waeli, Miqdam T. Chaichan, Hussein A. Kazem, Kamaruzzaman Sopian, Adnan Ibrahim, Sohif Mat, Mohd Hafidz Ruslan,
... performance of PV/T collectors when running a SiC nanoparticle dispersed in water as the base fluid for both indoor and outdoor systems. The performance assessment includes thermal, ...
Tópico(s): Solar-Powered Water Purification Methods
2018 - Elsevier BV | Energy
Christian Bur, Manuel Bastuck, Donatella Puglisi, Andreas Schütze, Anita Lloyd Spetz, Mike Andersson,
... against a high ethanol background. Hence, gas sensitive SiC-FETs are suitable sensors for determining indoor air quality.
Tópico(s): Advanced Sensor Technologies Research
2014 - Elsevier BV | Procedia Engineering
Hang Gui, Yuanyuan Xie, Qingheng Song, Yingjing Qian, Renmin Zhang,
... on successive interference cancelation and singular value decomposition (SIC-SVD) is proposed for indoor Sub-THz communication system with sub-connected structures. ...
Tópico(s): Advanced MIMO Systems Optimization
2023 - Institute of Electrical and Electronics Engineers | IEEE Access
Yinfei Du, Wei Huang, Mingxin Dai, Weizheng Liu,
... flexural/compressive strength test, thermal conductivity test and indoor water-bath heating test. The results showed that SiC was irregularly shaped and did not participate in cement hydration. SiCCCs had a feature of high-temperature resistance. Compared with control cement-based material (CCM), the 7-day compressive strength and thermal conductivity of SiCCCs increased by 31.2% and 170%, respectively. Indoor water-bath heating test revealed that SiCCCs could shorten the time by about 42.9% when the upper surface temperature rose from 0℃ to 30℃, and the heating efficiency could increase by 33.3%. This study indicates that SiC is a potential material to improve the heating ...
Tópico(s): Advanced ceramic materials synthesis
2022 - Elsevier BV | Construction and Building Materials
Ming-Hsuan Kao, Chang-Hong Shen, Peichen Yu, Wen-Hsien Huang, Yu‐Lun Chueh, Jia‐Min Shieh,
... cells to boost the conversion efficiency in an indoor lighting of 500 lx. The p-a-SiC:H window layer/p-a-Si:H buffer layer scheme moderates ...
Tópico(s): Perovskite Materials and Applications
2017 - Nature Portfolio | Scientific Reports
Veerakumar Chinnasamy, Honghyun Cho,
... thermal and physical properties than the Fe3O4 and SiC nanocomposite PCMs and can be used as a potential thermal energy storage material for indoor thermal comfort applications.
Tópico(s): Adsorption and Cooling Systems
2022 - Wiley | International Journal of Energy Research
Faisal Ahmed, Miguel Heredia Conde, P. López, Thomas Kerstein, Bernd Buxbaum,
... Fi) infrastructure.VLC allows the infrastructure to provide indoor simultaneous illumination, communication, and sensing (SICS).To this end, we designed a bistatic geometry ...
Tópico(s): Photoacoustic and Ultrasonic Imaging
2022 - IEEE Sensors Council | IEEE Sensors Journal
Hariam Luqman Azeez, Adnan Ibrahim, Banw Omer Ahmed, Ali H.A. Al‐Waeli, Mahmoud Jaber, Muhammad Aqil Afham Rahmat,
... silicon carbide (SiC) nanophase change material and channeling SiC based nanofluids at 0.3 % and 0.6 % volume concentrations. The study employs an indoor solar simulator to investigate how various parameters influence the energy and exergy performance of the system. The parameters include mass flow rates of (0.01, 0.025, 0.04, 0.055, 0.07, and 0.085) kg/s, solar irradiances of (400, 600, 800, and 1000) W/m2, and different coolant types such as water, 0.3 % SiC, 0.6 % SiC, water with nanophase changing material, ...
Tópico(s): Solar Radiation and Photovoltaics
2024 - Elsevier BV | Applied Thermal Engineering
Jianli Jin, Qianlong Shang, Jianping Wang, Huimin Lu, Danyang Chen, Dongmei Yang,
In this letter, an integrated dual-user visible light communication and positioning (VLCP) system based on non-orthogonal multiple access (NOMA) is proposed. The system consists of a single light-emitting diode (LED) and five photodiodes (PD), and the adaptive feedback threshold (AFT) algorithm is used to reduce error propagation (EP) to improve noise immunity. The particle swarm optimization (PSO) algorithm is employed to construct a joint optimization function that optimizes the power allocation factor ...
Tópico(s): Advanced Photonic Communication Systems
2024 - Multidisciplinary Digital Publishing Institute | Photonics
P. Louro, João Costa, M. Vieira, Manuel Augusto Vieira, Y. Vygranenko,
In this research we present a Visible Light Communication (VLC) system for indoor positioning and navigation. The viability of this methodology was demonstrated in previous work for indoor positioning within the unit navigation cell. In this paper it is proposed to extend this concept for navigation in wider spaces that demand more than one navigation unit. The proposed system uses white RGB LEDs of wide divergence angle and a specific photodetector dedicated to the selective wavelengths detection ...
Tópico(s): Impact of Light on Environment and Health
2017 - SPIE | Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
M. Vieira, Manuel Augusto Vieira, Pedro Vieira, P. Louro,
In this paper, we present an indoor positioning system were trichromatic white LEDs are used both for illumination proposes and as transmitters, and an MUX/DEMUX device, based on a-SiC:H technology, is used as the mobile receiver. OOK modulation scheme was used, and it provides a good trade-off between system ... areas. For both topologies, the transmitted data information, indoor position and motion direction of the mobile device are determined. Data analysis showed that by using a pinpin double photodiode based on a a-SiC:H heterostucture as receiver, and RBGLEDs as transmitters ...
Tópico(s): Underwater Vehicles and Communication Systems
2017 - SPIE | Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
Edwin L. Williams, Éric Grosjean, Daniel Grosjean,
Thirty artists' colors have been exposed for 12weeks to 120ppb of formaldehyde in purified air as well as to purified air alone (control experiment). The exposure was carried out in the dark at ambient temperature (19 ± 2°C) and humidity (RH 44–52%). Color change (∆E) was measured using a reflectance color analyzer after one, two, three, four, six, eight, 11 and 12 weeks of exposure. Color parameters (x, y, X, Y, Z, L*, a*, b* and ∆E)"were also calculated from the 380–700nm spectra, recorded with a reflectance ...
Tópico(s): Building materials and conservation
1992 - Taylor & Francis | Studies in Conservation
The calculation of pollution mass balances is explained with reference to the modelling of indoor air quality in museums, and the implication of pollution deposition indoors and on museum objects is discussed. A short overview of the key pollutants in the museum environment and their effect on materials is given. Case studies, comparing old and new buildings, with and without air-filtration, in both urban and rural areas, suggest that pollution mainly infiltrates buildings via free air movement ...
Tópico(s): Cultural Heritage Materials Analysis
2006 - Taylor & Francis | Studies in Conservation
Manuel Augusto Vieira, Manuel Augusto Vieira, V. Silva, P. Louro, L. Mateus, Pedro Vieira,
Tópico(s): Advanced Photonic Communication Systems
2016 - Springer Science+Business Media | MRS Advances
Manuel Augusto Vieira, M. Vieira, P. Louro, V. Silva,
... self-amplification. The proposed coding is based on SiC technology. Based on that, we present a way to achieve indoor localization using the parity bits and a navigation ... accurate positional information processes and the design of SiC navigation syndrome generators are discussed and tested. A visible multilateration method estimates the position of the device by using the decoded information received from several, non-collinear transmitters. The location and motion information is found by mapping position and estimates the location areas. Since the indoor position of the LED light source is known ...
Tópico(s): Optical Network Technologies
2016 - SPIE | Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
Hong Gi Kim, Abdul Qudoos, In Kyu Jeon, Byeong-Hun Woo, Jae-Suk Ryou,
... the thermal heat storage capacity of the PCM/SiC-based composite aggregate. A wall surface temperature of 42 °C and 45 °C, respectively at the internal and external side of the energy storage structure wall was measured. While an indoor temperature of 35 °C was observed for energy ... temperature of the plain structure wall and the indoor room temperature were 41 °C and 38 °C, respectively. The concrete structure with PCM/SiC-based composite aggregate decreased the room temperature and ...
Tópico(s): Solar Energy Systems and Technologies
2020 - Elsevier BV | Construction and Building Materials
Manuel Augusto Vieira, M. Vieira, P. Louro, L. Mateus, Pedro Vieira,
Tópico(s): Advanced Optical Sensing Technologies
2016 - Elsevier BV | Journal of Luminescence
Bassam M. Abdulsahib, Kamaruzzaman Sopian, Adnan Ibrahim, Mohd Faizal Fauzan, Anwer B. Al-Aasam, Ghaith Yahay Abusaibaa,
... were conducted in a controlled environment using an indoor solar simulator. Water and nanofluid with 0.6 vol% SiC were used as working fluids in the PVT ...
Tópico(s): Nanofluid Flow and Heat Transfer
2022 - Elsevier BV | Case Studies in Thermal Engineering
G. Drakou, C. S. Zerefos, I. Ziomas, V. Ganitis,
AbstractAbstractUsing the Nazaroff and Cass model, indoor air pollutant concentrations were predicted inside two buildings which house valuable cultural properties. Both are located in the centre of Thessaloniki, Greece. One building is an eighth-century Byzantine church, Agia Sofia, which is naturally ventilated; the other is an exhibition hall at the Archaeological Museum of Thessaloniki, with a conventional air-conditioning system. Model predictions were based on outdoor air pollutant concentration ...
Tópico(s): Building materials and conservation
2000 - Taylor & Francis | Studies in Conservation
Liang Qiao, Xingyu Lu, Shangyu Liang, Jianyu Zhang, Nan Chi,
... algorithm which consists of the successive interference cancellation (SIC) and the look-up table (LUT). Extensive experiments demonstrate that a data rate of 1.5Gbit/s is achieved in the 1.3-m indoor line-of-sight (LOS) scenario with the bit ...
Tópico(s): PAPR reduction in OFDM
2018 - Optica Publishing Group | Optics Express
Morten Ryhl-Svendsen, Geo Clausen,
AbstractA study was conducted in five storage rooms at the National Museum of Denmark, in which the effect on indoor air quality of mechanical ventilation, filtration and passive sorption was investigated. Mechanical ventilation and recirculation/filtration was initiated by introducing new ventilation and filtration units. Passive sorption was initiated by hanging sheets of sorptive materials on walls. The control strategies were evaluated in terms of their ability to lower the concentration of ...
Tópico(s): Building Energy and Comfort Optimization
2009 - Taylor & Francis | Studies in Conservation
Sophie Rowe, Christina Rozeik,
Cyclododecane was introduced to conservation in 1995 and has since proved to be a versatile and useful conservation material. It has been used on a wide variety of materials, including wall paintings, plaster, ceramics, paper, textiles and metals. Its ability to sublime without residues is particularly exciting for conservators because it offers the possibility of a temporary consolidant, binding medium, adhesive or support material that is fully reversible. This paper describes the ways in which ...
Tópico(s): Building materials and conservation
2008 - Taylor & Francis | Studies in Conservation
Olaf Hagemeyer, E Marek, Vera van Kampen, Ingrid Sander, Monika Raulf, R. Merget, Thomas Brüning,
Specific inhalation challenge (SIC) may be considered the 'gold standard' for the diagnosis of occupational asthma due to persulfate salts. The aim of the study was to develop a safe SIC protocol. Between 2003 and 2014, eight patients with suspected occupational asthma due to persulfate salts were examined (7 females, all hair-dressers). SIC was done with a dosimeter and a nebulizer using ammonium persulfate dissolved in phosphate buffer. Until 2009, a four-step-protocol (doses: 0.0004, 0.0045, 0.045, ...
Tópico(s):
2015 - Springer Nature | Advances in experimental medicine and biology