Results 81 to 90 of about 23,758 (274)

Crater Observing Bioinspired Rolling Articulator (COBRA)

open access: yesAdvanced Intelligent Systems, EarlyView.
Crater Observing Bio‐inspired Rolling Articulator (COBRA) is a modular, snake‐inspired robot that addresses the mobility challenges of extraterrestrial exploration sites such as Shackleton Crater. Incorporating snake‐like gaits and tumbling locomotion, COBRA navigates both uneven surfaces and steep crater walls.
Adarsh Salagame   +4 more
wiley   +1 more source

Worm‐Inspired Soft Robots With Modular Outfit‐Changing for Intelligent Multienvironment Adaptation

open access: yesAdvanced Intelligent Systems, EarlyView.
This study proposes a worm‐inspired soft robot capable of locomotion across multiple environments through a modular “outfit‐changing” strategy. The robot integrates pneumatically actuated peristaltic segments with interchangeable external modules, enabling efficient motion on ground surfaces, within pipelines, through granular media, and underwater ...
Xiaomin Liu   +6 more
wiley   +1 more source

Wind‐driven seed dispersal differentially promotes seed trapping and retention across alpine plants

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Seed dispersal can mediate species interactions between plants across life stages. Plants can physically stop seed movement (seed trapping) and prevent further dispersal following entrapment (seed retention). We therefore hypothesized seed trapping and retention rates depend on the physical attributes of interacting seeds and plants ...
Courtenay A. Ray   +7 more
wiley   +1 more source

Bethlehem in the Bronze and Iron Ages in the light of recent discoveries by the Palestinian MOTA-DACH [PDF]

open access: yes, 2015
The discovery of the necropolis of Khalet al-Jam’a, around 2.2 Km south-east of Bethlehem (Nigro et al. in this volume), provides new data on the Bronze and Iron Age town which controlled the main route connecting Jerusalem to Hebron, and the access to ...
Nigro, Lorenzo
core  

Research Status and Development Trend of Macromolecular Structure and Model Construction of Different Coals

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Coal is a natural macromolecular substance composed of complex organic molecules and a small amount of minerals. Its chemical composition and microstructure are highly complex and variable, and no unified definition exists. This inherent structural complexity underscores the theoretical significance of constructing accurate macromolecular ...
Chao Zhou   +5 more
wiley   +1 more source

Yemeni Mummies: Ahistory Between Preservation and Loss

open access: yesMaǧallaẗ Al-Turāṯ wa Al-Taṣmīm
Yemen is considered to be one of the countries that have developed a technique for preserving and mummifying bodies using aromatic plant materials found in the Yemeni environment. The practice of mummification is not only a religious tradition associated
Mr. Dr. Abdul Hakim Shaif Muhammad Researcher. Amjad Ismail Abdel-Mughni
doaj   +1 more source

Development of a Novel Superhydrophobic Sawdust–Perspex Composite Disc for Efficient Oil–Water Separation

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Water pollution by oil and organic substances causes serious problems that threaten the ecosystem. Superhydrophobic materials represent an effective solution for removing oil from water. The present paper investigates the development of a low‐cost, superhydrophobic composite for oil–water separation.
Zienab A. Ahmed
wiley   +1 more source

"Semiotics Approach as a Method to Analyze the Visual Language of Architecture (A Semiotics Analysis of the tomb of Khety -One of Rock-Cut Tombs of Beni Hasan Minya)"

open access: yesJournal of Architecture, Art & Humanistic Science, 2019
Semiotics approach is one of the most modern analyzes and criticism approaches that moved from linguistics to other fields of knowledge, including the architectural products since 1960.
Nora Alalfy   +2 more
doaj   +1 more source

Characterization and Modeling of Industrial Phosphoric Acids' Rheological Behavior: Impact of Magnesium Monoxide on Viscosity

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study investigates the rheological behavior of industrial phosphoric acids (H3PO4) produced at the JORF–LASFAR phosphoric plant in Morocco, with P2O5 concentrations of 18%, 29%, 42%, and 54%. Rheological measurements were performed using a rotary cylinder rheometer over a shear rate range of 1–1000 s−1.
Hamza Belbsir   +6 more
wiley   +1 more source

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