Results 81 to 90 of about 276,908 (308)

Airborne chemical sensing with mobile robots [PDF]

, 2006
Airborne chemical sensing with mobile robots has been an active research areasince the beginning of the 1990s. This article presents a review of research work in this field,including gas distribution mapping, trail guidance, and the different subtasks of
Achim Lilienthal, Albert, Amy Loutfi, Arshak, Atema, Blumenthal, Braitenberg, Carey, Deveza, Dickinson, Duda, Eiben, Engelberger, Gardner, Gardner, Hangartner, Haug, Hayes, Hayes, Hinze, Ishida, Ishida, Ishida, Ishida, Ishida, Ishida, Ishida, Ishida, Ishida, Ishida, Kaneyasu, Kanzaki, Kanzaki, Kleperis, Kolb, Kreutz, Kuwana, Larionova, Lilienthal, Lilienthal, Lilienthal, Loutfi, Loutfi, Martinez, Moncrieff, Munoz, Murlis, Nagle, Nakamoto, Nakamoto, Olafsson, Organisation, Partridge, Parzen, Pearce, Penza, Persaud, Pluijm, Pyk, Raub, Rechenberg, Roberts, Russell, Russell, Russell, Russell, Russell, Sauerbrey, Schaller, Schwefel, Smyth, Sudd, Tom Duckett, Townsend, Wilkens, Winquist   +75 more
core   +4 more sources

Population of Nonmetallic Inclusions in Liquid High‐Silicon Electrical Steel in Contact With MgO–C Refractories Based on Recyclates and Environmentally Friendly Binders

Advanced Engineering Materials, EarlyView.
The formation of nonmetallic inclusions (NMIs) was investigated in this study, carrying out immersion tests for 30 min at a temperature of 1600°C with liquid high‐silicon electrical steel (Si ≈ 3 mass‐%) and different MgO–C refractories. Conventional MgO–C refractories were considered, as well as MgO–C refractories containing MgO–C recyclate and ...
Lukas Neubert, Matheus Roberto Bellé, Florian Kerber, Dinesh Kumar Gunasekar, Hans‐Jörn Weddige, Christos G. Aneziris, Olena Volkova   +6 more
wiley   +1 more source

Development of dynamic gas generation system for ultratrace amounts of acetone at parts-per-trillion levels with low temperature permeation method

Discover Applied Sciences
Different types of gas sensing devices have been developed to monitor trace amounts of volatile compounds emitted from exhalation, human skin, building materials, and atmospheric chemical reactions, etc.. In particular, the recent progress in transdermal
Reiji Aoyagi, Takahiro Arakawa, Kenta Iitani, Kohji Mitsubayashi, Yoshika Sekine, Yuichiro Kaifuku   +5 more
doaj   +1 more source

Laser driving and data processing concept for mobile trace gas sensing: Design and implementation.

Review of Scientific Instruments, 2018
High precision mobile sensing of multi-species gases is greatly demanded in a wide range of applications. Although quantum cascade laser absorption spectroscopy demonstrates excellent field-deployment capabilities for gas sensing, the implementation of ...
Chang Liu, B. Tuzson, P. Scheidegger, H. Looser, B. Bereiter, M. Graf, M. Hundt, O. Aseev, Deran Maas, L. Emmenegger   +9 more
semanticscholar   +1 more source

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

Advanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar, Matthew Large, Andrea Ciavatti, Laura Basiricò, Beatrice Fraboni, Paul J. Sellin, Attila J. Mozer, Marco Petasecca, Matthew J. Griffith   +8 more
wiley   +1 more source

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

Advanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger, Anna Mauri, Yang Cui, Sebastian Josef Weishäupl, Ali Deniz Özdemir, Hamad Syed, Aleksandr Ovsianikov, Wolfgang Wenzel, Alexander Pöthig, Jürgen Hauer, Mariana Kozlowska, Roland Augustinus Fischer   +11 more
wiley   +1 more source

Fabrication of highly sensitive room temperature operated NO2 gas sensor using back gated 2D-MoS2 FETs

Chemical Physics Impact
Atomically thin layered semiconductors such as Molybdenum Sulphide (MoS2) have emerged as potential candidate for trace level detection of chemicals owing to their innate very high surface to volume ratio.
Sujit Kumar, Anjali Sharma, Ajay K. Sao, Jatinder Pal Singh, Arijit Chowdhuri, Monika Tomar   +5 more
doaj   +1 more source

Ecological research in the Large Scale Biosphere Atmosphere Experiment in Amazonia: A discussion of early results [PDF]

, 2004
The Large-scale Biosphere–Atmosphere Experiment in Amazonia (LBA) is a multinational, interdisciplinary research program led by Brazil. Ecological studies in LBA focus on how tropical forest conversion, regrowth, and selective logging influence carbon ...
Alencar, Ane, Asner, Gregory P, Braswell, Rob, Bustmante, Mercedes, da Rocha, Humberto, Davidson, Eric A, Dias, Pedro Silva, Feldpausch, Ted, Fernandes, Erick, Filho, Nicolau Priante, Goulden, M L, Kabat, Paval, Keller, Michael M, Kruijt, Bart, Luizao, Flavio, Markewitz, Daniel, Miller, Scott, Nobre, Antonio D, Nobre, Carlos, von Randow, Celso, Vourlitis, George   +20 more
core   +1 more source

Interactions of chemostimuli at the single cell level: studies in a model system [PDF]

, 2004
The responses of afferent chemosensory fibres of the carotid body to individual chemostimuli have long been established. However, the mechanisms underlying the multiplicative interactions of these stimuli (i.e.
Peers, C.
core   +1 more source

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu, Giovanni Gammaitoni, Michael Häfner, Eduardo Villalobos‐Portillo, Carlo Marini, Matteo Bianchini   +5 more
wiley   +1 more source