Results 141 to 150 of about 167,152 (288)

Optimizing S20C Steel and SUS201 Steel Welding Using Stainless Steel Filler and MIG Method

Metals
The reliable joining of dissimilar stainless steel and carbon steel remains a critical challenge in Metal Inert Gas (MIG) welding due to complex thermal–metallurgical interactions and the formation of brittle phases at the weld interface.
Van Huong Hoang, Thanh Tan Nguyen, Minh Tri Ho, Pham Tran Minh Trung, Nguyen Van Sung, Van-Thuc Nguyen, Van Thanh Tien Nguyen   +6 more
doaj   +1 more source

Technology readiness levels and technology status for selected long term/high payoff technologies on the RLV program [PDF]

The development of a new space transportation system in a climate of constant budget cuts and staff reductions can be and is a difficult task. It is no secret that NASA's current launching system consumes a very large portion of NASA funding and requires
Rosmait, Russell L.
core   +1 more source

Hierarchical Artificial Muscle with Nonlinear Elasticity for Antagonistic and Cyclic Robotics

Advanced Science, EarlyView.
We construct hierarchical muscles by plying nylon fibers around a heating wire. The hierarchical muscle shows a J‐shaped passive curve, which shows benefit in antagonistic muscle pair and work accumulation mechanism. We also develop a computational, first‐principle model to understand the physics of both active actuation stroke and passive J‐curve ...
Samuel Tsai, Liuyang Cheng, Ali Albazroun, Qiong Wang, Jeongmin Kim, Arman Tekinalp, Soonwook Kim, Charlie Simcox, Ryne Downing, Vagish Sivaramakrishnan, Grace Carsello, Miles Bimrose, Wonsik Eom, William P. King, Mattia Gazzola, Sameh Tawfick   +15 more
wiley   +1 more source

Millimeter‐Scale Dual‐Opposing RNA‐Gradient Hydrogel for Interfacial Gene Silencing

Advanced Science, EarlyView.
A branched microfluidic platform enables the fabrication of millimeter‐scale hydrogels with dual‐opposing RNA‐gradients for precise spatial control of cell gene expression. This device allows for the generation of multiple constructs at once, offering potential for future engineering of complex tissue interfaces with improved physiological relevance ...
Tyler Hoffman, Cong Truc Huynh, Marcus J. Goudie, Peyton J. Tebon, Hyojin Ko, Minh Khanh Nguyen, Kaelyn L. Gasvoda, Yang Song, Kirsten Fetah, Ali Khademhosseini, Song Li, Eben Alsberg   +11 more
wiley   +1 more source

Hierarchical Reconfigurable Metasurface Based on Scenario‐Guided Functional Modules and Programmable Core

Advanced Science, EarlyView.
This paper proposes a hierarchical reconfigurable metasurface architecture (HRMA) to achieve comprehensive electromagnetic parameter modulation and on‐demand polymorphic function switching. The reconfigurable metasurface is divided into a programmable core (PC) and scenario‐guided functional modules (FMs), exhibiting significant flexibility and ...
Lihao Zhu, Jiaqi Han, Zhe Zheng, Qiang Feng, Dexiao Xia, Xiangjin Ma, Yajie Mu, Guoliang Luo, Rui Li, Haixia Liu, Hao Xue, Long Li   +11 more
wiley   +1 more source

Distribution characteristics of interfacial reaction layer and its effect in resistance spot welded Ti/Q235 joint with an interlayer of niobium

Journal of Materials Research and Technology
The distribution characteristics of reaction layer in the welding interfacial zone of the joint between pure titanium and Q235 steel welded by using resistance spot welding with an interlayer of niobium.
Nannan Wang, Ranfeng Qiu, Hongxin Shi, Lipeng Yan, Huai Yao, Keke Zhang   +5 more
doaj   +1 more source

Controlled Moderate Interfacial Reaction Facilitates High‐Strength Low‐Resistivity Barrier Layer for Half‐Heusler Thermoelectrics

Advanced Science, EarlyView.
The barrier layer is designed comprehensively by thermal expansion coefficient and interfacial reaction energy to yield a controlled interfacial reaction. Ultimately, the Co25Fe50Ni25/half‐Heusler joint simultaneously achieves low contact resistivity and high bonding strength.
Jian Liang, Shuyue Tan, Lifeng Jiang, Wen Zhang, Hongda Song, Xinghui Wang, Haiping Guo, Huijun Kang, Rongchun Chen, Enyu Guo, Zongning Chen, Tongmin Wang   +11 more
wiley   +1 more source

Bioinspired Morphology‐Decoupled Soft Gripper with Enhanced Bidirectional Grasping Capability

Advanced Science, EarlyView.
Inspired by biological predation, a novel gripper decouples cross‐modal grasping via dual morphological configurations. Synergistically integrating hybrid rigid and soft coupled fingers with a metamaterial palm, the system performs active compliant grasping for static objects and passive cage capture for dynamic targets.
Yedong Huang, Dazhong Yu, Baijin Mao, Fangming Li, Juntian Qu   +4 more
wiley   +1 more source

Microsphere‐Modulated Sensing‐in‐Energy Supercapacitor With Self‐Filtering Ultra‐Large Signal Under High‐g Shocks

Advanced Science, EarlyView.
To overcome severe signal oscillation under extreme impact conditions, this work presents a Sensing‐in‐Energy microdevice which integrates a MEMS inertial structure directly within a supercapacitor electrolyte cavity. Utilizing shock‐driven transient contact and electrolyte damping for signal self‐filtering, it achieves weak‐oscillation, large ...
Zhihao Zheng, Yiqun Wang, Kaiyou Liu, Shancheng Luan, Yajiang Yin, Xiaofeng Wang, Keren Dai, Zheng You   +7 more
wiley   +1 more source

Ionic Elastomer Interface for Low‐Pressure and Durable All‐Solid‐State Batteries

Advanced Energy Materials, EarlyView.
This work reports an ionically conductive elastomer that enables stable all‐solid‐state batteries（ASSBs）under low external pressure. The soft elastomeric matrix, integrated with a LiG3‐based conductive phase(lithium bis(trifluoromethanesulfonyl)imide and triethylene glycol dimethyl ether), simultaneously delivers high ionic conductivity and mechanical ...
Jiaxu Zhang, Shengjie Xia, Shutao Zhang, Ziqing Wang, Suzhe Liang, Chao Wang, Pushun Lu, Tingting Liu, Guantai Hu, Mingfeng Wei, Ruizhi Yu, Zhiyun Wu, Ximin Zhai, Deping Wang, Xueliang Sun, Changhong Wang   +15 more
wiley   +1 more source