Results 71 to 80 of about 3,958 (262)

Kinematic analysis and synthesis of the lever mechanism of crank press stamping

open access: yesВестник КазНУ. Серия математика, механика, информатика, 2020
Expanding technical and technological capabilities of forging and stamping machines and equipment can be carried out by introducing new designs of actuators with wide functionality. These features are provided by the crank lever mechanisms of the press.
A. K. Tuleshov   +2 more
doaj  

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

基于MATLAB的内燃机曲柄连杆机构动力学GUI设计

open access: yesJixie chuandong, 2014
Combined with the common internal combustion engine crank dynamics model,the analysis system of crank and connecting rod mechanism is designed by using graphical user interface(GUI)development tool of MATLAB.The dynamics analysis of the crank and ...
任重, 谭秋林, 蔡婷, 熊继军
doaj  

Deciphering Short‐Range Order in 2D Transition Metal Dichalcogenides: From Origin to Multi‐Scale Property Modulation

open access: yesAdvanced Science, EarlyView.
Short‐range order in 2D transition metal dichalcogenides is revealed as a new design paradigm. Driven by chemical affinity and atomic size, it governs properties across scales. Weak ordering tunes site‐resolved magnetism and d‐band centers, while strong ordering eliminates gap states to open band gaps.
Hanyu Liu   +3 more
wiley   +1 more source

Unlocking Strength‐Toughness Dilemma in High‐Entropy Borides by Intragranular Microstructural Reconstruction

open access: yesAdvanced Science, EarlyView.
An extreme non‐equilibrium process combining heavy direct current sintering and TiSi2 addition is used to construct intragranular energy dissipation units within high‐entropy boride ceramics to overcome the strength‐toughness trade‐off. The resulting ceramic demonstrates attractive mechanical properties with a flexural strength of 887 MPa and a ...
Yingjun Liu   +13 more
wiley   +1 more source

Detection of a crank in Spherical Stephenson-III Six-bar Mechanism

open access: yes工程科学与技术, 2013
:It is a critical issue to identify the existence of a crank of a multiple loop mechanism, which is most fundamental and difficult problem in the process of mechanism analysis and synthesis.
Sun Yan
doaj  

Strain Tuning the Occupation of Candidate Topological Weyl States in W‐Doped MoTe2

open access: yesAdvanced Science, EarlyView.
The present study investigates strain‐induced modifications of the electronic structure in the Weyl semimetal Td${\rm T}_d$‐Mo0.91W0.09Te2${\mathrm{Mo}}_{0.91}{\mathrm{W}}_{0.09}{\mathrm{Te}}_{2}$ using hard X‐ray angle‐resolved photoemission spectroscopy.
Amon Lanz   +21 more
wiley   +1 more source

Growth‐Pathway‐Controlled van der Waals Epitaxy of Phase‐Selective Tin Sulfides

open access: yesAdvanced Science, EarlyView.
Growth‐pathway‐controlled van der Waals epitaxy enables deterministic phase selection and strain engineering in tin sulfide/WSe2 heterostructures. Direct growth of SnS induces substrate‐mediated strain and phase evolution, whereas sequential growth through an SnS2 buffer suppresses strain transfer and stabilizes pristine α‐SnS, revealing a versatile ...
Jaehyeok Lee   +2 more
wiley   +1 more source

Dynamics Modeling of the Crank-group Driving Mechanism with Clearance

open access: yesJixie chuandong, 2015
The crank- group driving mechanism is a kind of under- actuated mechanism with redundant characteristics,aiming at the characteristics of mechanism,selecting continuous contact model for the joint clearance,the dynamics model of the basic structural unit-
Yan Weiliang   +3 more
doaj  

Emergent Spinning and Orbital Motion in Clustered Wind‐Assisted Flyers

open access: yesAdvanced Science, EarlyView.
Inspired by natural snowflake geometries, paper‐cut flyers exhibit geometry‐defined spinning and orbital motions during cluster formation in a wind tunnel. Collective flights of multiple paperflakes reveal dynamic clustering, fragmentation, and continuously evolving spin behaviors.
Bingnan Zhou   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy