Results 121 to 130 of about 96,399 (264)
Dynamic testing of docking system hardware [PDF]
, 1972 Extensive dynamic testing was conducted to verify the flight readiness of the Apollo docking hardware. Testing was performed on a unique six degree-of-freedom motion simulator controlled by a computer that calculated the associated spacecraft motions ...
Dorland, W. D.
core +1 more source
A Bottom‐Up Design Framework for Multifunctional Lattice Metamaterials
Advanced Science, EarlyView.This study introduces a generative AI framework for designing multifunctional lattice metamaterials. The method combines 3D Gaussian voxel generation with deep learning, enabling greater design freedom and structural performance. The optimized lattice metamaterials achieve enhanced energy absorption by 40–200% compared to conventional structures and ...
Zongxin Hu +13 more
wiley +1 more source
MOD-0A 200 kW wind turbine generator design and analysis report [PDF]
The design, analysis, and initial performance of the MOD-OA 200 kW wind turbine generator at Clayton, NM is documented. The MOD-OA was designed and built to obtain operation and performance data and experience in utility environments.
Anderson, T. S. +6 more
core +1 more source
An Intelligent Auxiliary Vacuum Brake System [PDF]
, 2009 The purpose of this paper focuses on designing an intelligent, compact, reliable, and robust auxiliary vacuum brake system (VBS) with Kalman filter and self-diagnosis scheme.
Li, Jiun-Yi +3 more
core
Tunable Sound Absorption via Evanescent‐Wave Coupling in Asymmetric Bilayer Metasurfaces
Advanced Science, EarlyView.Tunable sound absorption is realized through a bilayer metasurface system governed by evanescent‐wave coupling. This work demonstrates that such evanescent‐wave coupling provides a controllable scattering channel that destructively interferes with the specular reflection.
Pyung Sik Ma, Hyung Jin Lee
wiley +1 more source
Sub‐Unit‐Cell Logic Governs Transport in TPMS Architectures
Advanced Science, EarlyView.ABSTRACT Next‐generation energy, thermal, and chemical systems require architectures capable of highly efficient transport across multiple length scales. Triply periodic minimal surfaces (TPMS), first conceptualized in 1865, offer inherently scalable geometries with exceptional transport potential, yet mechanistic links between topology and performance
Haozhang Zhong +16 more
wiley +1 more source
Advanced Science, EarlyView.This review examines the evolution of bioprinting toward minimally invasive in situ strategies for internal organ regeneration. It defines the technological roadmap from handheld systems to advanced minimally invasive bioprinting platforms, positioning soft robotics as a core enabler.
Duc Tu Vu +9 more
wiley +1 more source
A Step by Step Walking Electric Workover Rig with Self Balancing Derrick
Shiyou jixie, 2020 To meet the needs of workover operations in Yuedong Oilfield, a step by step walking electric workover rig with self-balancing derrick is developed. The workover rig uses a step by step walking hydraulic load-bearing chassis as the load-bearing chassis ...
Wei Wenke, Song Hongyu, Wu Qiudong
doaj
Advanced Science, EarlyView.Founded on a rapidly formed nanostructured tannic acid/polyethyleneimine (TA/PEI) platform, an ultrafast (∼5 min), universal interfacial engineering strategy utilizing stearoyl chloride (SC) and Phytic acid (PA) enables precise fabrication of Janus membranes across diverse substrates.
Wenqing Zhang +7 more
wiley +1 more source
Kongzhi Yu Xinxi Jishu, 2019 In view of the defect that the existing imported three-platform operation device of DPT catenary overhaul vehicle can only operate at constant speed, it adopted PWM control technology to develop a domestic self-developed system with adjustable operation ...
NIU Xuexin +3 more
doaj