Results 41 to 50 of about 371,005 (310)

Project-based learning oriented STEAM: the case of micro–bit paper-cutting lamp

open access: yesInternational Journal of Technology and Design Education, 2021
The main purpose of the living technology curriculum is to cultivate students' interest in learning science and technology, and further to utilize their experience of learning instructions and develop their ability to integrate interdisciplinary ...
Shi Lu, Chih-Cheng Lo, Jia-Yu Syu
semanticscholar   +1 more source

In Situ Amine Formation to Modulate MOF‐Derived PdIn N‐Doped Carbon Catalysts

open access: yesAdvanced Materials, EarlyView.
An amine‐assisted approach converts PdIn‐MOF into PdIn intermetallic nanoparticles embedded in N‐doped carbon. In situ‐generated amines trigger early Pd nucleation, producing smaller PdIn domains than direct pyrolysis. Amine sterics and basicity tune composition and particle size, while solvent and amine co‐determine textural features.
Gonzalo Egea   +9 more
wiley   +1 more source

Determination of Vibration Properties and Reliable Frequency Estimation for Synchronous Vibrations Through Improved Blade Tip Timing Techniques Without a Once-per-Revolution Sensor

open access: yesSensors
Synchronous vibrations, which are caused by periodic excitations, can have a severe impact on the service life of impellers. Blade Tip Timing (BTT) is a promising technique for monitoring synchronous vibrations due to its non-intrusive nature and ability
Marios Sasakaros   +3 more
doaj   +1 more source

Miniature Soft Robot With Magnetically Reprogrammable Surgical Functions

open access: yesAdvanced Materials, EarlyView.
Miniature soft robots have great prospects to revolutionize minimally invasive treatments. Here we present a miniature soft robot, which can be reprogrammed to perform five surgical functionalities with six‐degrees‐of‐freedom motions. This soft robot can prospectively make minimally invasive surgery considerably safer and painless, and enable ...
Chelsea Shan Xian Ng   +4 more
wiley   +1 more source

Developing engaging STEAM-geometry activities: Fostering mathematical creativity through the engineering design process using Indonesian cuisine context

open access: yesInfinity
Enhancing mathematical creativity requires more learning activities that foster creative thinking. However, teachers need more resources and activities to nurture students' creativity in mathematics effectively.
Agnita Siska Pramasdyahsari   +6 more
doaj   +1 more source

Effect of Fixation Methods on Biochemical Characteristics of Green Teas and Their Lipid-Lowering Effects in a Zebrafish Larvae Model

open access: yesFoods, 2022
Fixation is a key process contributing to different flavors of green tea and pan-fire and steam were the common fixation methods applied conventionally.
Maoyun Li   +8 more
doaj   +1 more source

Self-assembly of highly efficient, broadband plasmonic absorbers for solar steam generation

open access: yesScience Advances, 2016
A self-assembling plasmonic absorber absorbs light efficiently across a wide range of wavelengths and could be used in nanophotonic devices. The study of ideal absorbers, which can efficiently absorb light over a broad range of wavelengths, is of ...
Lin Zhou   +8 more
semanticscholar   +1 more source

A‐Site High‐Entropy Perovskite Enabling Sulfur‐Tolerant and Coking‐Resistant Anodes for Hydrocarbon‐Fueled Solid Oxide Fuel Cells

open access: yesAdvanced Materials, EarlyView.
A‐site high‐entropy engineering creates a robust Pr0.2Ba0.2La0.2Sr0.2Ca0.2FeO3‐δ (PBLSCF) perovskite‐based solid oxide fuel cell (SOFC) anode with in situ Fe nanoparticle exsolution to boost fuel oxidation and durability, achieving strong sulfur tolerance and coking resistance.
Lei Wu   +10 more
wiley   +1 more source

Development of excitation test method for non-synchronous vibration of rotating turbine blade (Measurement of damping of non-synchronous vibration mode)

open access: yesNihon Kikai Gakkai ronbunshu, 2016
In order to analyze the blade vibration caused by flutter, it is necessary to understand both the aerodynamic damping and structural damping of the high vibration stress. Flutter Vibration mode occurring in the rated speed is non-synchronous mode.
Ryou AKIYAMA   +3 more
doaj   +1 more source

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