Results 81 to 90 of about 1,345,648 (320)

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan, Rhena Wulf, Till M. J. Stadtmüller, Christos G. Aneziris, Tobias M. Fieback   +4 more
wiley   +1 more source

Electrostatically-Driven Resonator on Soi with Improved Temperature Stability [PDF]

, 2006
This paper deals with a single-crystal-silicon (SCS) MEMS resonator with improved temperature stability. While simulations have shown that the temperature coefficient of resonant frequency can be down to 1 ppm/degrees C, preliminary measurements on non ...
Bosseboeuf, A., Bourouina, T., Giridhar, A., Marty, F., Verjus, F.   +4 more
core   +2 more sources

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

Advanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie, David Kramer, Thomas Scheithauer, Hans Jürgen Maier, Thomas Hassel   +4 more
wiley   +1 more source

Torque Ripple Suppression of BLDCM With Optimal Duty Cycle and Switch State by FCS-MPC

IEEE Open Journal of Power Electronics
The traditional six-step commutation control method in brushless DC motors (BLDCM) often results in significant torque ripple, which limits its application in high-precision fields.
Zicheng Li, Xiuwei Fan, Qingyao Kong, Jiang Liu, Sai Zhang   +4 more
doaj   +1 more source

U.S. Law of the Sea Cruise to Map the Foot of the Slope and 2500-m Isobath of the Florida Escarpment and Sigsbee Escarpment, Northern Gulf of Mexico Continental Marg. Cruise Report [PDF]

, 2007
U.S. Law of the Sea cruise to map the foot of the slope and 2500-m isobath of the Florida Escarpment and Sigsbee Escarpment, northern Gulf of Mexico continental margin CRUISE NR07-1 Mobile, AL to Mobile, AL June 21, 2007 to July 8 ...
Gardner, James V.
core   +1 more source

Wearing a bike helmet leads to less cognitive control, revealed by lower frontal midline theta power and risk indifference [PDF]

, 2019
A recent study claims that participants wearing a bike helmet behave riskier in a computer-based risk task compared to control participants without a bike helmet.
Holroyd, Clay, Kessler, Luisa, Miltner, Wolfgang H. R., Schmidt, Barbara   +3 more
core   +2 more sources

Thermoelectric Modules Incorporating MgAgSb and Mg3(Sb,Bi)2 Synthesized Using a Melting Method

Advanced Engineering Materials, EarlyView.
A scalable synthesis method for a thermoelectric material of MgAgSb is established. A thermoelectric power module of MgAgSb/Mg3(Sb,Bi)2 is fabricated, showing the conversion efficiency of 7.4% at ΔT = 315 K. The performance is comparable to conventional Bi2Te3 modules when they are operated with an air‐cooled heat exchanger.
Kazuo Nagase, Hironori Ohshima, Kunihiro Kihou, Haruno Kunioka, Ushin Anazawa, Ryosuke Sakagami, Yosuke Goto, Masayuki Murata, Chul‐Ho Lee   +8 more
wiley   +1 more source

Entropy-Enthalpy Compensation May Be a Useful Interpretation Tool for Complex Systems Like Protein-DNA Complexes: An Appeal to Experimentalists

, 2012
In various chemical systems enthalpy-entropy compensation (EEC) is a well-known rule of behavior, although the physical roots of it are still not completely understood.
B. Nordén, E. B. Starikov, Einstein A.
core   +1 more source

Engineering Deformation and Failure in Diamond Triply Periodic Minimal Surface Lattices via 3D Wall‐Thickness Grading

Advanced Engineering Materials, EarlyView.
The work demonstrates that strategic wall‐thickness grading in diamond triply periodic minimal surface lattices enables precise tuning of deformation and failure behavior under compression. Different gradation patterns guide how and where the structure collapses, improving energy absorption or promoting controlled brittle failure.
Giovanni Rizza, Danilo Bruson, Manuela Galati, Luca Iuliano   +3 more
wiley   +1 more source

Etch slope compensation for planar silica waveguide lens pair

Electronics Letters, 2006
A silica lens pair has been designed to facilitate the free-space optical propagation between opposing planar waveguides. Each lens consists of a graded refractive index slab with a convexly shaped front face. A technique for compensating for the non-vertical etch of the front face curvature is described and shown to result in a significant reduction ...
M. Mackenzie, C.Y. Kwok, A. Michael, K. Yu, C. Kaalund   +4 more
openaire   +1 more source