Results 121 to 130 of about 515,316 (299)

锥齿轮温挤压成形工艺研究

Jixie chuandong, 2010
Warm extrusion technology is a process technic of net shape or near net shape.It is used plasticity forming of mechinery parts for car,motorcycle industry gradually,because it has good fluid capability of metal,high forming precision,low cost and ...
于金伟
doaj  

Establishing a Model Precursor System: Over a Decade of Research on Carbon Dots from the Citric Acid‐Urea System

Advanced Functional Materials, EarlyView.
The citric acid/urea (CA‐Urea) precursor system offers a versatile, scalable route to carbon dots with tunable luminescence and multifunctionality. Mechanistic insights into precursor chemistry and reaction parameters have enabled doping, surface modification, and hybridization strategies, yielding CDs for luminescent devices, sensing, catalysis ...
Yupeng Liu, Zhiqi Cai, Xiangxin Sun, Hanyi Zhang, Yiming Hao, Jun Wu, Zekun Yan, Xue Wu, Yiqi Liang, Liming Wang, Songnan Qu   +10 more
wiley   +1 more source

Fittability and mechanical properties of laser shock liquid warm microforming of AZ31B magnesium alloy foils with complex features

Journal of Materials Research and Technology
Difficult-to-form materials and complex mold characteristics have an important effect on the fittability and mechanical properties of microforming components.
Zhang Yan, Youjuan Ma, Huixia Liu, Xiao Wang   +3 more
doaj   +1 more source

Temperature-dependent yield criterion for high strength steel sheets under warm-forming conditions

MATEC Web of Conferences, 2015
In this paper, uniaxial and biaxial tensile tests with cruciform specimens were conducted to investigate the deformation behaviour of dual phase steel sheet with a tensile strength of 590 MPa (DP590) under evaluated warm-forming temperatures (20–190 ∘C).
Cai Zhengyang, Diao Keshan, Wu Xiangdong, Wan Min, Cheng Cheng   +4 more
doaj   +1 more source

Using deuterated H3+ and other molecular species to understand the formation of stars and planets

, 2012
The H3+ ion plays a key role in the chemistry of dense interstellar gas clouds where stars and planets are forming. The low temperatures and high extinctions of such clouds make direct observations of H3+ impossible, but lead to large abundances of H2D ...
Lucas R., Pagani L., van der Werf P. P.
core   +1 more source

MXene/PEDOT Functional Coatings on Flexible Microelectrode Arrays for Multianalyte In Vivo Neurochemical Sensing and Electrophysiology

Advanced Functional Materials, EarlyView.
A MXene/PEDOT coating enables multimodal functionality and dual‐analyte detection of dopamine and serotonin in flexible microelectrode arrays while enhancing electrophysiological recording quality. The anti‐fouling, low‐impedance interface overcomes key limitations of conventional coatings, providing a robust and versatile platform to investigate the ...
Ilaria Gatti, Karamullah Eisawi, Umisha Siwakoti, Greyson Jadwin, Ashmita Sigdel, Michela Chiappalone, Deepak Kumbhare, Michael Naguib, Elisa Castagnola   +8 more
wiley   +1 more source

Silicified Wood‐Inspired, High‐Strength Fire‐Resistant Chitin‐Based Aerogels for Sustainable High‐Temperature Thermal Insulation

Advanced Functional Materials, EarlyView.
Inspired by natural silicified wood, a biomimetic mineralized chitin‐derived aerogel is constructed. It can withstand 81 000 times its own weight, and its backside temperature is 130.4°C after exposure to ∼1300°C butane flame for 600 s, exhibiting high‐strength, fire‐resistance, and super thermal‐insulation properties.
Kai Xu, Qihang Lv, Lubin Liu, Zhezhe Zhou, Chentao Yan, Ao Qin, Jianting Ma, Shuhui Liang, Yue Xu, Min Hong, Bin Li, Pingan Song   +11 more
wiley   +1 more source

ТЕMPERATURE AND STRAIN RATE DEPENDENT STRESS-STRAIN RELATIONSHIP FOR ADVANCED HIGH STRENGTH DUAL-PHASE STEEL DP780

Jixie qiangdu
To research mechanical behaviors of advanced high strength dual-phase steel DP780 in the warm forming ,fundamental mechanical properties and true stress-strain curves of the DP780 were obtained and analyzed based on the warm uniaxial tensile test with ...
SONG Hui, LI Di, WANG KaiDi, LIU XingFeng, JIANG Ning, LU ZiPeng, CUI HongJian   +6 more
doaj  

Coagulative Granular Hydrogels with an Enzyme Catalyzed Fibrin Network for Endogenous Tissue Regeneration

Advanced Healthcare Materials, EarlyView.
Coagulative granular hydrogels are composed of packed thrombin‐functionalized microgels that catalyze the conversion of fibrinogen into a secondary fibrin network, filling the interstitial voids. This bio‐inspired approach stabilizes the biomaterial to match the robustness of bulk hydrogels without compromising injectability, mimicking the initial ...
Zhipeng Deng, Camila B. Tovani, Simona Bianco, Gianni Comandini, Aya Elghajiji, Mina Aleemardani, Roxana Moscalu, Jeremie Zappia, Bianca Fernandes, Olivia Annett, Chrissy L. Hammond, Jason Wong, Dave J. Adams, Fabrizio Scarpa, Michael R. Whitehouse, Annela M. Seddon, James P. K. Armstrong   +16 more
wiley   +1 more source

Co‐Electrospinning Extracellular Matrix with Polycaprolactone Enables a Modular Approach to Balance Bioactivity and Mechanics of a Multifunctional Bone Wrap

Advanced Healthcare Materials, EarlyView.
The incorporation of nondigested ECM and synthetic polymers into a co‐electrospinning system enables the decoupling of bioactivity and mechanical properties within a single wrap. This technique is used to develop a multifunctional bone wrap that achieves augmented membrane durability, sustained infection control, and enhanced vascularity for use in ...
Sarah Jones, Madeline Laude, Zeenat Oyebanji, Ruchi Birur, Andres Luengo Martinez, Isabelle Gilbert, Phillip Baek, Nichole Longbottom, Nicole McCullough, Staci J. Horn, Chien‐Yu Lin, Matthew J. Lohr, Fred Clubb, Manuel K. Rausch, Elizabeth Cosgriff‐Hernandez   +14 more
wiley   +1 more source