Results 51 to 60 of about 1,765 (206)

Bias field estimation for intensity inhomogeneity correction in MR images

, 2009
[[abstract]]An intensity inhomogeneity correction system includes a log operator which performs a log operation on the intensity values of the original MR image.
Lai, Shang-Hong;Fang, Ming
core  

Self‐Adaptive Anhydrous Passivation Mitigates Open‐Circuit Voltage Loss in Pb‐Sn Mixed Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
In this report, a self‐adaptive anhydrous passivation strategy is introduced by incorporating trimellitic anhydride (TMAH) into the perovskite precursor. In situ hydrolysis of TMAH yields trimellitic acid (TMA); ‐C═O/‐COO− groups of TMAH/TMA form a chelate with undercoordinated Pb2+/Sn2+, regulate nucleation, promote (100) orientation, passivate ...
Md. Ataur Rahman, Md. Abdul Karim, Md. Emrul Kayesh, Siliang Cao, Shamim Ahmmed, Kiyoto Matsuishi, Ashraful Islam   +6 more
wiley   +1 more source

Bias field estimation for intensity inhomogeneity correction in MR images

, 2011
[[abstract]]An intensity inhomogeneity correction system includes a log operator which performs a log operation on the intensity values of the original MR image.
Lai, Shang-Hong;Fang, Ming
core  

Method to correct intensity inhomogeneity in MR images for atherosclerosis characterization

, 2006
We are developing methods to characterize atherosclerotic disease in human carotid arteries using multiple MR images having different contrast mechanisms (T1W, T2W, PDW).
Zhang, Shaoxiang, Salvado, Olivier, Hillenbrand, Claudia, Wilson, David L., https://orcid.org/   +4 more
core   +1 more source

Invisible Polymer Walls Enhance Reorientational Optical Nonlinearity in Oligothiophene‐Doped Liquid Crystals

Advanced Functional Materials, EarlyView.
The polymer wall stabilized dye‐doped liquid crystals (PWLCs) enhance the sensitivity of photoinduced molecular reorientation in dye‐doped LC systems. The PWLC with an invisible polymer wall successfully reduces the threshold intensity and functions as an optical limiter under the incidence of low intensity light laser source.
Junki Yokota, Yuya Nakata, Erika Katayama, Miho Aizawa, Kyohei Hisano, Shoichi Kubo, Atsushi Shishido   +6 more
wiley   +1 more source

Effect of tissue inhomogeneity in soft tissue sarcomas: From real cases to numerical and experimental models [PDF]

, 2018
Electrochemotherapy is an established treatment option for patients with superficially metastatic tumors, mainly malignant melanoma and breast cancer.
Campana, Luca Giovanni, Mognaschi, Maria Evelina, Tosi, A. L., Bernardis, A., Sieni, Elisabetta, Di Barba, Paolo, Di Barba, P., Mognaschi, M. E., Forzan, Michele, Sgarbossa, Paolo, Dughiero, Fabrizio, Campana, L. G, Forzan, M., Sieni, E., Bullo, M., Sgarbossa, P., Tosi, Anna Lisa, Bullo, Marco, Bernardis, Alessia, Dughiero, F.   +19 more
core   +1 more source

Designed Lewis Acid–Base Passivation for High Performance Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
ABSTRACT Silicon's high cost and long energy payback time remain major barriers to the global expansion of solar power. In contrast, metal–halide perovskites offer abundant, solution‐processable absorbers, and have achieved efficiencies of 25%–30%, positioning them as strong competitors to silicon.
Afna Manaf, Hiba Shahulhameed, Bhabani Sankar Swain, Shengzhong (Frank) Liu, Adel Najar   +4 more
wiley   +1 more source

Ultrasmall High‐Entropy Materials: Nanoscale Effects, Synthesis, and Mechanistic Insights

Advanced Functional Materials, EarlyView.
This review article focuses on sub‐10 nm high‐entropy materials that combine nanoscale design with complex compositions for next‐generation applications. ABSTRACT Ultrasmall high‐entropy nanomaterials (USHENMs, <10 nm) merge multicomponent chemistry with size‐dependent effects, forming a distinct class of materials with unprecedented properties.
Yueyue He, Wenbo Wang, Simon Schweidler, Yanjiao Ma, Ben Breitung, Torsten Brezesinski   +5 more
wiley   +1 more source

Effect of relaxation processes on stark echo intensity in the presence of nonresonant laser pulses with spatial inhomogeneity [PDF]

, 2013
We have studied the dependence of the intensity and appearance time of the Stark echo response on the ratio of the field strengths of nonresonant laser pulses with spatial inhomogeneity.
Nefediev L., Ahmedshina E., Garnaeva G.
core  

Enhancement of Dielectric Breakdown Strength and Recoverable Energy Density in Three‐Dimensional Heterointerfaces on BaTiO3–PbZrO3–PbTiO3 Films via Room‐Temperature Nano‐Clustering

Advanced Functional Materials, EarlyView.
A room‐temperature aerosol deposition process yields multiphase nano‐clustered dielectric capacitors containing discrete BaTiO3, PbZrO3, and PbTiO3 crystals. This architecture creates three‐dimensional heterointerfaces that induce interfacial charge trapping and effectively inhibit breakdown propagation.
Hyunseok Song, Ke Xu, Donggeon Baek, Dayeong Hur, Minjae Kim, Hyun‐Cheol Song, Dae‐Yong Jeong, Houbing Huang, Jungho Ryu   +8 more
wiley   +1 more source