Results 161 to 170 of about 17,399 (260)

Perceived importance and didactic difficulty of chemistry education: Insights from Czech teachers

The Curriculum Journal, EarlyView.
Abstract This empirical study examines how chemistry teachers in lower and upper secondary schools in the Czech Republic evaluate the content of the chemistry curriculum, focussing on its perceived importance and didactic difficulty. Based on a quantitative survey (N = 146), the study provides insight into the pedagogical content knowledge of ...
Jitka Lorenzová, Blanka Jirkovská, Martin Čapek Adamec, Jan Havlík, Petr Holzhauser, Daniela Nováková, Karel Němejc   +6 more
wiley   +1 more source

Neutron and gamma radiation shielding properties of transparent polymethyl methacrylate copolymers containing gadolinium. [PDF]

Sci Rep
Xie S, Liao Y, Yan J, Mao C, Li C, Wu Z, Yan Q, Liu G.   +7 more
europepmc   +1 more source

Surface hydration‐induced damage in tight oil‐bearing sandy conglomerate reservoirs

Deep Underground Science and Engineering, EarlyView.
A series of techniques such as X‐ray diffraction, scanning electron microscopy, energy‐dispersive spectroscopy, conductivity tests, and infrared thermal imaging were used. The key findings are the identification of a two‐stage surface hydration process and the elucidation of the effects of various minerals and elements on the hydration process ...
Anbang Zhao, Shuheng Du, Yuan Zhang, Jinghong Hu, Bo Zhou, Yun Wei   +5 more
wiley   +1 more source

Study of prompt gamma and neutron emission for real-time range verification in proton and carbon-ion therapy. [PDF]

Med Phys
Bellotti ES, Mazzucconi D, Bortot D, Pola A, Fiorini C, Urban K, Agosteo S.   +6 more
europepmc   +1 more source

Water Electrolysis Technologies for Extraterrestrial Water Resource Conversion

EcoEnergy, EarlyView.
This paper reviews four water electrolysis technologies for extraterrestrial water conversion: alkaline water electrolysis, proton exchange membrane water electrolysis, solid oxide water electrolysis, and anion exchange membrane water electrolysis. It elaborates on their mechanisms, components, and integration, highlighting challenges such as water ...
Yawen Jiang, Yuan Zhao, Lin Zu, Lili Ling, Yongwei Zhao, Jun Di, Pin Song   +6 more
wiley   +1 more source

Monte Carlo simulation and unfolding of an extended Bonner sphere system for secondary neutron spectrometry in proton therapy facilities using conventional BSS experimental data. [PDF]

Front Oncol
Díaz-Comeche A, Oliver S, Juste B, Jardin D, Zakhary M, Mossahebi S, Mille MM, Lee C, Miró R, Verdú G, Morató S.   +10 more
europepmc   +1 more source

Hydride Materials for Advanced Electrochemical Energy Storage: Progress and Perspectives

EcoEnergy, EarlyView.
Hydrides are emerging as functional materials for low‐carbon electrochemical energy storage. Complex hydrides provide polyanionic electrolyte frameworks for all‐solid‐state, Li–S, and multivalent batteries; hydride ion conductors enable H− transport for emerging hydride‐based cells; and metal hydrides offer established electrode chemistries for Ni–MH ...
Taehyun Kim, Taegyoung Lee, Huijeong Oh, Shin‐ichi Orimo, Sangryun Kim   +4 more
wiley   +1 more source

New <i>para</i>-hydrogen cold neutron source at the Budapest Research Reactor: Monte Carlo simulations. [PDF]

J Appl Crystallogr
Shapiro D, Konik P, Akhyani M, Ioffe A.
europepmc   +1 more source

One‐Pot Spray Pyrolysis Fabrication of Multi‐Phase Lithium Manganese Oxide Microsphere Cathodes for Enhanced Lithium‐Ion Battery Performance

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Sr‐LMO microspheres were synthesized by one‐pot spray pyrolysis, forming multi‐phase lithium manganese oxide with Sr‐doped LiMn2O4, Sr2Mn2O5, and Li2MnO3‐like domains. This structure refines particles, suppresses Jahn–Teller distortion, and adds Li+ pathways, delivering superior cycling stability and rate performance over undoped and commercial LMO ...
Jae Hyeon Choi, Yeon Oh Lee, Kyoung Sun Kim, Yun Chan Kang, Jung Sang Cho, Hyungsub Kim, Sang Mun Jeong, Gi Dae Park   +7 more
wiley   +1 more source

Inelastic Neutron Scattering Study of the Optically Excited State of MAPbBr₃. [PDF]

ACS Omega
Shi K, Cavaye H, Lavén R, Karlsson M.
europepmc   +1 more source