Results 51 to 60 of about 3,551 (214)

曲柄群驱动机构中的间隙问题研究

open access: yesJixie chuandong, 2013
The clearance between kinematic pairs in the crank-group driving mechanism is studied.Crank-group driving mechanism is a new type of transmission mechanism,and there must be clearance between kinematic pairs to guarantee the machining precision of the ...
汪玉琪, 曹巨江
doaj  

Atomic Defects in Layered Transition Metal Dichalcogenides for Sustainable Energy Storage and the Intelligent Trends in Data Analytics

open access: yesAdvanced Science, EarlyView.
This review comprehensively summarizes the atomic defects in TMDs for their applications in sustainable energy storage devices, along with the latest progress in ML methodologies for high‐throughput TEM data analysis, offering insights on how ML‐empowered microscopy facilitates bridging structure–property correlation and inspires knowledge for precise ...
Zheng Luo   +6 more
wiley   +1 more source

New High‐Tc Charge‐Transfer Multiferroicity in the Quasi‐2D Antiferromagnet CrSbS3

open access: yesAdvanced Science, EarlyView.
ABSTRACT Low‐dimensional magnets, particularly 2D systems, offer a rich platform for realizing unconventional multiferroic mechanisms, especially when multiple polarization channels coexist. In the quasi‐2D antiferromagnet CrSbS3, which crystallizes in the centrosymmetric orthorhombic space group Pnma and orders magnetically at TN ≈ 90 K, two ...
Hung‐Cheng Wu   +17 more
wiley   +1 more source

Architected Inverse Nacre Hydrogels With High Strength and Crack‐Insensitive Toughness

open access: yesAdvanced Science, EarlyView.
Hydrogels hold promise for biomedical and engineering applications, yet their practical use is fundamentally limited by the strength‐toughness trade‐off and poor fatigue resistance. In this study, a bioinspired inverse nacre architecture constructed via a scalable thermo‐calendering process is introduced, which overcomes these classic limitations ...
Haidi Wu   +10 more
wiley   +1 more source

AN ADJUSTABLE SIX-BAR MECHANISM WITH VARIABLE INPUT SPEED FOR MECHANICAL FORMING PRESSES

open access: yes, 2008
An adjustable six-bar mechanism mechanical press, in which one of its link length can be adjusted and its driving crank also can be varied according to different forming processes, is proved to be feasible in this paper.
Ren-Chung Soong
core   +1 more source

High‐Performance Prevascularized SHED‐Laden rGO@Hydrogel Achieves Optimized Diabetic Bone Defect Repair

open access: yesAdvanced Science, EarlyView.
A high‐performance 3D scaffold integrating rGO and SHEDs is developed to overcome impaired healing in diabetic bone defects. By driving extracellular matrix remodeling, rGO creates a pro‐angiogenic niche that significantly accelerates in vitro vascular network formation.
Can Zhang   +12 more
wiley   +1 more source

Driving mechanism and spatial effect of technological potential energy agglomeration promoting the development of high-tech industry

open access: yes, 2022
The current technological potential energy agglomeration situation and the driving mechanism for high-tech (HT) industry development can be clarified based on the front view of innovative behaviour.
Tao, Changqi   +3 more
core   +2 more sources

Spatiotemporal Control of Formation of Dynamic Protein Fiber Assemblies via Photophysical Effects of a Focused Laser Beam

open access: yesAdvanced Science, EarlyView.
Tightly focused laser irradiation can accumulate tubulin proteins at/around the laser focus, which leads to the formation of highly ordered microtubule assemblies. The assemblies can exhibit various dynamic behaviors such as radial motion, bundling, and flagella‐like rotation with motor protein and chemical energy, highlighting as a unique tool for ...
Hiroshi Y. Yoshikawa   +16 more
wiley   +1 more source

Green Manufacturing: a Pumpless Mechanical-Hydraulic Clamping Device Based on Wormgear and Crank-Slider Mechanism

open access: yes, 2011
Hydraulic transmission clamping device may cause environmental pollution due to the existing of fluid pump and open oil tank. A new-concept clamping device based on high flexibility of hydraulic is introduced in this paper.
Yin Zhuo Bai   +3 more
core   +1 more source

Kinematic Analysis and Centrodes Between Rotating Tool with Reciprocating Motion and Workpiece

open access: yes, 2022
A general algorithm for the kinematic analysis and the determination of both fixed and moving centrodes of the relative motion between rotating tool and workpiece, is proposed to analyze the effects of the working parameters on the quality of the ...
Figliolini G., Sorli M., Lanni C.
core   +1 more source

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