Results 221 to 230 of about 155,916 (298)

Millimeter Wave Radar

Christian Waldschmidt, Christina Bonfert, Timo Grebner   +2 more
openaire   +1 more source

Metachromatic Butterfly Bile Pigments for Multi‐Level Optical Security Films

Advanced Functional Materials, EarlyView.
Bio‐derived optical security materials are manufactured by embedding butterfly‐based pigments in polymer films. Tunable color and fluorescence responses arise from concentration‐controlled metachromasy, enabling spatially encoded patterns with distinct visible, UV‐active, and spectral signatures.
Limin Wang, Bodo D. Wilts
wiley   +1 more source

Gesture Recognition with Residual LSTM Attention Using Millimeter-Wave Radar. [PDF]

Sensors (Basel)
Bai W, Chen S, Ma J, Wang Y, Han C.
europepmc   +1 more source

Hierarchical Cellulose/MXene Aerogel Films with Coral‐Like Polyaniline Skin for Absorption‐Led Broadband EMI Shielding

Advanced Functional Materials, EarlyView.
A regenerated cellulose/MXene aerogel film is engineered with a surface‐confined, coral‐like polyaniline skin to intensify interfacial polarization while a porous, percolated conductive core is retained. By molten salt hydrate processing and interfacially confined oxidative polymerization, PANI growth is localized at the outer surface and internal ...
Kun Liu, Haishun Du, Ting Xu, Chuanling Si, Xuejun Pan   +4 more
wiley   +1 more source

Histological and inflammatory effects of 26.5 GHz quasi-millimeter wave exposure on rat skin. [PDF]

Front Public Health
Ijima E, Nagai A, Li K, Hikage T, Kamizawa N, Hidaka E, Tsuruta Y, Ishitake T, Masuda H.   +8 more
europepmc   +1 more source

Investigation of Halogen Substitution Effects in π‐Conjugated Organic Ligands of Chiral Hybrid Perovskites on Their Chiroptical Activity

Advanced Functional Materials, EarlyView.
The role of novel thiophene‐based ligands with halogen substitutions in enhancing the chiroptical and optoelectronic properties of 2D chiral HOIPs has been investigated. By tailoring ligand design, enhanced CD and CPL properties are achieved, with improved CPL discrimination in photodetectors.
Boesung Kwon, Doyeong Yeo, In‐Chul Hwang, In Hwan Jung, Joon Hak Oh   +4 more
wiley   +1 more source

Correction: Non-constraining and non-contact monitoring of respiratory rate at awake and apnea and hypopnea during sleep using a millimeter wave radar. [PDF]

Sleep Biol Rhythms
Kazuo C, Shigeaki O, Daisuke E, Kazuma N, Tatsuya I, Kimihiko M, Hironobu S, Mamiko H, Hisato H, Yutaka K, Susumu S, Toyohiro H, Yasuhiro G, Takuya S, Hirofumi T, Toshiki A.   +15 more
europepmc   +1 more source

Atomic Layer Deposition in Transistors and Monolithic 3D Integration

Advanced Functional Materials, EarlyView.
Transistors are fundamental building blocks of modern electronics. This review summarizes recent progress in atomic layer deposition (ALD) for the synthesis of two‐dimensional (2D) metal oxides and transition‐metal dichalcogenides (TMDCs), with particular emphasis on their enabling role in monolithic three‐dimensional (M3D) integration for next ...
Yue Liu, Taoyu Zou, Cheng‐Yan Xu, Liang Zhen, Yang Li, Yong‐Young Noh   +5 more
wiley   +1 more source

S2DB-mmWave YOLOv8n: Multi-object detection for millimeter-wave radar using YOLOv8n with optimized multi-scale features. [PDF]

PLoS One
Yuan M, Yuan Y, Zhang X, Zhu Z, Zhao C, Gao X, Du G.   +6 more
europepmc   +1 more source

Multi‐Functional ZnO–Te Heterojunction Devices Enabling Compact Frequency Quadrupler

Advanced Functional Materials, EarlyView.
Wafer‐scale ZnO–Te heterojunction devices featuring tunable double negative differential transconductance (D‐NDT) are demonstrated at ≤ 200°C. Leveraging this unique characteristic, a single‐stage frequency quadrupler is realized, achieving a 64%–75% reduction in device count.
Jae Hyeon Jun, Byeong Gwan Kim, Min Seo Kang, Ui Gwan Shin, Minjae Kim, Kiyung Kim, Hae‐Won Lee, Yongsu Lee, Byoung Hun Lee   +8 more
wiley   +1 more source