Results 51 to 60 of about 2,413,300 (321)
Electroactive Liquid Crystal Elastomers as Soft Actuators
Advanced Functional Materials, EarlyView.Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley +1 more source
Melt Grafting of Geometry‐Tailored Voltage Stabilizers for High‐Performance Polypropylene Insulation
Advanced Functional Materials, EarlyView.A scalable one‐step melt grafting strategy is developed to enhance the dielectric properties of isotactic polypropylene by covalently incorporating thermally stable aromatic voltage stabilizers. This solvent‐free approach improves volume resistivity and DC breakdown strength through deep trap formation and charge localization, offering a sustainable ...
Nazirul Mubin bin Normansah +9 more
wiley +1 more source
Analysis of Ball Soldering Parameters on the Properties of a BGA Packaged Semiconductor [PDF]
Materials Research, 2018 Integrated circuits have several applications, including medicine and the aerospace industry, where reliability is essential. Packaging is an important step in the manufacturing of integrated circuits, and ball soldering is one of the most critical ...
Dario G. Rosa +5 more
doaj +1 more source
Pivotal shock absorbing pad assembly Patent [PDF]
, 1965 Pivotal shock absorbing assembly for use as load distributing portion in landing gear systems of space ...
Blumrich, J. F.
core +1 more source
Robust Design of an Automobile Ball Joint Considering the Worst-Case Analysis
, 2017 An automobile ball joint is the element for connecting the control arm and the knuckle arm, allowing rotational motion. The ball joint consists of the stud, plug, socket, and seat. These components are assembled through the caulking process that consists
Bong-Su Sin +3 more
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.An efficient NiOx HTL is successfully prepared by introducing MXene as an additive without further surface modification to fabricate high‐performance FASn0.5Pb0.5I3 perovskite solar cells. The introduction of MXene contributes to improved conductivity of NiOx, better aligned at NiOx/perovskite interfaces, and enhanced quality of perovskite films ...
Lijun Chen +12 more
wiley +1 more source
Landing pad assembly for aerospace vehicles Patent [PDF]
, 1965 Landing pad assembly for aerospace ...
Blumrich, J. F.
core +1 more source
Gourd‐Inspired Design of Unit Cell with Multiple Gradients for Physiological‐Range Pressure Sensing
Advanced Functional Materials, EarlyView.Gourd‐shaped micro‐dome arrays with coordinated modulus, conductivity, and geometric gradients co‐optimize sensitivity and linearity in piezoresistive tactile sensors. Under pressure, a solid upper dome embeds into a porous lower dome, triggering rapid contact‐area growth and series‐to‐parallel conduction, enabling unsaturated, intensity‐resolved ...
Jiayi Xu +6 more
wiley +1 more source
Fatigue Life Evaluation of Solder Ball Joints.
The Journal of Japan Institute for Interconnecting and Packaging Electronic Circuits, 1997 半導体BGAパッケージのはんだボール接合部は接続強度, 信頼性上重要な箇所である。はんだ接合部を有する試験片を作成し, せん断試験を行って疲労寿命を評価した。疲労試験後の接合部の走査型電子顕微鏡観察から, き裂発生箇所は疲労振幅の大小により異なることがわかった。一方, 有限要素法による3次元弾塑性解析を行い接合部のひずみ分布を求めた。解析結果から最大のひずみが生ずる箇所は疲労試験で得られたき裂が生じる箇所と一致することがわかった。この最大ひずみが発生する箇所を考慮してひずみと寿命との関係を求めた。
Tetsuo KUMAZAWA +4 more
openaire +2 more sources
Mount mechanisms for the Saturn 5/Apollo mobile launcher at John F. Kennedy Space Center [PDF]
, 1975 A support system was designed to resist hurricane wind loads at the launch pad and to allow the supported structural frame to expand and contract freely under wide ranges of temperature.
Balke, H. A.
core +1 more source