Results 51 to 60 of about 53,346 (287)

EEG sleep analyzer and method of operation Patent [PDF]

, 1970
Development of apparatus and method for quantitatively measuring brain activity as automatic indication of sleep state and level of ...
Frost, J. D., Jr.
core   +1 more source

Photoswitchable Conductive Metal–Organic Frameworks

Advanced Functional Materials, EarlyView.
A conductive material where the conductivity can be modulated remotely by irradiation with light is presented. It is based on films of conductive metal–organic framework type Cu3(HHTP)2 with embedded photochromic molecules such as azobenzene, diarylethene, spiropyran, and hexaarylbiimidazole in the pores.
Yidong Liu, Mersad Mostaghimi, Abhinav Chandresh, Saibal Jana, Wolfgang Wenzel, Lars Heinke   +5 more
wiley   +1 more source

System measures response time of photomultiplier tubes [PDF]

, 1968
Calibration system enables precise determination of rise time of photosensitive detectors. To perform a calibration, the time-voltage curve of the excitation voltage for a light source is compared with the time-voltage curve of the voltage output from a ...
Lauver, M. R.
core   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Silent emergency alarm system for schools and the like [PDF]

, 1973
An emergency alert system is described. In a school each classroom (or other area) is instrumented with a hidden microphone and receiver tuned to a non-audible frequency.
Read, W. S., Roberts, V. W.
core   +1 more source

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

Advanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner, Julian Burkhart, Kateryna Borysova, Chiara Mazzariol, Klaus Müller‐Buschbaum   +4 more
wiley   +1 more source

New records of Heterocera (Insecta, Lepidoptera) from the Republic of Khakassia and South of Krasnoyarsk region (South Siberia, Russia)

Acta Biologica Sibirica, 2019
Here we presented the new data and new records of Lepidoptera (Crambidae, Cossidae, Lasiocampidae, Drepanidae, Geometridae, Notodontidae, Noctuidae s.l., Arctiidae) from the Khakassia Republic and the South of Krasnoyarsk region.
R. E. Maksimov, M. A. Ivanov, S. A. Knyazev   +2 more
doaj   +1 more source

Ionizing radiation in electronics from the Compton scattering of quasi-stationary particles generated by characteristic and Bremsstrahlung x rays

AIP Advances, 2020
Characteristic x rays generated by a collision between a tungsten target and relativistic electron beams generated from a compact electrostatic accelerator based on a Marx generator and a Blumlein pulse-forming line can induce transient ionizing ...
Sun-Hong Min, Ohjoon Kwon, Matlabjon Sattorov, Seontae Kim, Dongpyo Hong, Seonmyeong Kim, Ilsung Cho, Chawon Park, Wongyun Jung, Minho Kim, Kyeong Min Kim, Won Taek Hwang, Seungwoo Park, Kyo Chul Lee, Yong Jin Lee, Sang Moo Lim, Bong Hwan Hong, Gun-Sik Park   +17 more
doaj   +1 more source

Ultraviolet Resonance Lamp-Patent [PDF]

, 1970
Development of ultraviolet resonance lamp with improved transmission of ...
Bass, A. M.
core   +1 more source

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

Advanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger, Helmy Pacheco Hernandez, Yang Cui, Hongxing Hao, Vanessa Ramm, David C. Mayer, Khai‐Nghi Truong, Roland A. Fischer, Jürgen Hauer, Mariana Kozlowska, Alexander Pöthig   +10 more
wiley   +1 more source