Results 41 to 50 of about 1,757,665 (295)

Experimental comparison of micro-scaled plate-fins and pin-fins under natural convection

open access: yesInternational Communications in Heat and Mass Transfer, 2016
Abstract The present work analyses, for the first time, the heat transfer from pin micro-fins. The scope of the present paper is comparing thermal performance of plate micro-fin and pin micro-fin arrays under natural convection conditions in air. Two fin geometries are considered: plate and pin fin arrays with the same thermal exchanging surface are ...
Micheli L., Reddy K. S., Mallick T. K.
openaire   +1 more source

Transient Natural Convection in a Differentially Heated Cavity with a Thin Fin of Different Lengths on a Sidewall [PDF]

open access: yes, 2007
Direct numerical simulations of unsteady natural convection in a differentially heated cavity with a thin fin of different lengths on a sidewall at the Raleigh number of 3.8 × 109 are performed.
Lei, C., Patterson, J. C., Xu, F.
core   +1 more source

The noncommutative schemes of generalized Weyl algebras

open access: yes, 2018
The first Weyl algebra over $k$, $A_1 = k \langle x, y\rangle/(xy-yx - 1)$ admits a natural $\mathbb{Z}$-grading by letting $\operatorname{deg} x = 1$ and $\operatorname{deg} y = -1$.
Won, Robert
core   +1 more source

Additive Manufacturing of NiTi Shape Memory Alloys for Elastocaloric Applications: A Review

open access: yesAdvanced Functional Materials, EarlyView.
Additive manufacturing enables complex NiTi architectures that overcome key limitations in elastocaloric refrigeration, including poor heat transfer and high mechanical work input. This review surveys recent advances in LPBF‐ and DED‐fabricated NiTi shape memory alloys for elastocaloric applications, highlighting process–structure–performance ...
Ignatius Andre Setiawan   +7 more
wiley   +1 more source

Coexistence in interval effect algebras [PDF]

open access: yes, 2010
Motivated by the notion of coexistence of effect-valued observables, we give a characterization of coexistent subsets of interval effect ...
Jenča, Gejza
core   +1 more source

Atomic Layer Deposition in Transistors and Monolithic 3D Integration

open access: yesAdvanced 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   +5 more
wiley   +1 more source

Advances in Halide Perovskites for Photon Radiation Detectors

open access: yesAdvanced Materials Technologies, EarlyView.
This work highlights recent progress in perovskite‐based photon radiation detectors, covering organic–inorganic hybrid, inorganic, lead‐free double, and vacancy‐ordered halide perovskites. Their detection performance is compared, material‐specific advantages and challenges are examined, and provides insight into current limitations and future ...
Liangling Wang   +3 more
wiley   +1 more source

Soft Robotic Snake with Tunable Undulatory Gait for Efficient Underwater Locomotion

open access: yesAdvanced Robotics Research, EarlyView.
This study designs an underwater soft snake robot using 3D‐printed soft actuators, controlled by specific signals to generate sinusoidal undulation. Results show a positive correlation between speed and swing amplitude, with optimal performance at 2/3π phase offset, PLA tail, 1.2 voltage growth rate, and 6s undulation period achieving a maximum speed ...
Huichen Ma, Junjie Zhou, Raye Yeow
wiley   +1 more source

El fin del último natural en Luis de Molina, S. I.

open access: yesEstudios Eclesiásticos, 1960
Las siguientes líneas abordan la aportación de Luis de Molina sobre el fin último natural donde se sitúa la persona ante la trascendencia. Luis de Molina presenta dos aspectos importantes dentro de su estudio: el constitutivo o estático y el dinámico o ...
Antonio Queralt
doaj  

Cryptotendipes usmaensis (Pagast, 1931) – a cryptic species of Chironomidae (Insecta, Diptera)

open access: yesCHIRONOMUS Journal of Chironomidae Research
We investigated the taxonomic status of Cryptotendipes usmaensis (Pagast, 1931), a cryptic species of Chironomidae (Insecta, Diptera), focusing on its morphological and molecular characteristics. We found discrepancies in the descriptions of adult males
Janne Raunio, Yngve Brodin
doaj   +1 more source

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