Results 51 to 60 of about 4,615,291 (338)

Investigation of Asymmetric Flow of a Slender Body with Low-Aspect Ratio Fins Having Large Deflection Angles

open access: yesAerospace
To understand the asymmetric flow of a slender body with low-aspect ratio fins, a wind tunnel experiment was carried out, and the asymmetric flow was observed when the pair of fins had a symmetric deflection angle of 30° at a small angle of attack and ...
Yonghong Li   +4 more
doaj   +1 more source

Experimental Analysis of Laminar Flow and Heat Transfer in a Multi-Port Finned Minichannel

open access: yesHittite Journal of Science and Engineering, 2016
D ue to their high heat transfer rate, small scale channels have been a popular area of study for the past three decades, especially for heat exchangers.
Berk Cevrim   +2 more
doaj   +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

Influence of a Built-in Finned Trombe Wall on the Indoor Thermal Environment in Cold Regions

open access: yesEnergies
This study focuses on energy conservation, reducing the amount of energy consumed to heat a room, and decreasing the intensity of carbon emissions. The research object is a room heated by a floor with a built-in finned Trombe wall (TW) located in Lanzhou,
Xiaobing Qi, Jialong Wang, Ye Wang
doaj   +1 more source

A Review on Sensor Technologies, Control Approaches, and Emerging Challenges in Soft Robotics

open access: yesAdvanced Robotics Research, EarlyView.
This review provides an introspective of sensors and controllers in soft robotics. Initially describing the current sensing methods, then moving on to the control methods utilized, and finally ending with challenges and future directions in soft robotics focusing on the material innovations, sensor fusion, and embedded intelligence for sensors and ...
Ean Lovett   +5 more
wiley   +1 more source

Finned zeolite catalysts

open access: yesNature Materials, 2020
There is growing evidence for the advantages of synthesizing nanosized zeolites with markedly reduced internal diffusion limitations for enhanced performances in catalysis and adsorption. Producing zeolite crystals with sizes less than 100 nm, however, is non-trivial, often requires the use of complex organics and typically results in a small product ...
Heng Dai   +12 more
openaire   +4 more sources

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

open access: yesAdvanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska   +2 more
wiley   +1 more source

Studi Simulasi Numerik dan Eksperimental Pengaruh Penambahan Fin Berbentuk Prisma Segitiga Tegak Lurus Aliran yang Dipasang pada Bagian Bawah Plat Absorber Berbentuk V Terhadap Efisiensi Kolektor Surya Pemanas Udara

open access: yesJurnal Teknik ITS, 2017
Sumber energi fosil akan habis dalam beberapa tahun lagi jika tidak ada alternatif energi untuk dijadikan bahan bakar[1]. Energi alternatif yang mudah didapatkan di Indonesia adalah energi surya yang dapat diaplikasikan dalam solar air collector sebagai ...
Clarissa Suroso, Djatmiko Ichsani
doaj  

Ultime : une question sociale totale

open access: yesM@GM@, 2023
C’est un préambule au spectre assez profond, appelant sans grand risque de vol unique un bon répertoire de spécialistes, et surtout ne présentant aucun risque : "ouvert à la réflexion", par exemple, est suffisamment vague et non mesurable pour que, quel ...
Bernard Troude
doaj  

A study on increase of vapor in PWR steam generator (Improvement of heat transfer coefficient by fin and twisted tape introduction)

open access: yesNihon Kikai Gakkai ronbunshu, 2016
Increasing the electric power of nuclear power plant is important for the economy and the environment. Pressurized water reactor (PWR) exchanges the heat of primary system with secondary system in the steam generator (SG) to generate vapor. In this study,
Kenta FUJI, Shinichi MOROOKA
doaj   +1 more source

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