Results 61 to 70 of about 6,562 (294)

A Functional 2D Carbon Allotrope Combining Nanoporous Graphene and Biphenylene Segments

open access: yesAdvanced Materials, EarlyView.
The synthesis of a novel nanoporous graphene (NPG) is reported with biphenylene segments via thermal fusion of 12‐armchair porous graphene nanoribbons grown on gold surfaces. Characterization using STM, AFM, and DFT reveals low‐defect semiconducting behaviour and tunable band gaps.
Paula Angulo‐Portugal   +14 more
wiley   +1 more source

Adaptive design on crank and slotted lever mechanism [PDF]

open access: yes, 2016
One of the famous mechanisms for quick return motion to obtain reciprocating motion is crank and slotted lever mechanism. In this paper an adaptive design on this mechanism is briefly discussed. Certain changes have been made to the crank and the slotted
JyotiChutia, Arup
core  

基于最优传动性能设计偏置曲柄滑块机构的研究

open access: yesJixie chuandong, 2014
Under the design conditions of given time ratio and stroke,according to the bias schematic diagram slider-crank mechanism,the value interval of crank length is obtained by analysis,the structure size design formula of slider-crank mechanism is deduced ...
苏有良
doaj  

Spin‐Split Edge States in Metal‐Supported Graphene Nanoislands Obtained by CVD

open access: yesAdvanced Materials, EarlyView.
Combining STM measurements and ab‐initio calculations, we show that zig‐zag edges in graphene nanoislands grown on Ni(111) by CVD retrieve their spin‐polarized edge states after intercalation of a few monolayers of Au. ABSTRACT Spin‐split states localized on zigzag edges have been predicted for different free‐standing graphene nanostructures.
Michele Gastaldo   +6 more
wiley   +1 more source

Preliminary Exploration of the Topological Structure of the Crank- Group Driving Mechanism

open access: yesJixie chuandong, 2015
The crank- group driving mechanism is a kind of underactuated mechanism with redundant characteristics. Based on the topological theory,taking the typical structures of the crank- group driving mechanism( the single driven crank driving mechanism and the
Wang Yuqi, Cao Jujiang
doaj  

Analysis of novel geared linkage mechanisms

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2014
Two types of novel one-degree-of-freedom seven-bar geared linkage mechanism are presented. The proposed mechanisms consist of an elementary planetary gear train, a slider-crank mechanism or a Scotch yoke mechanism, and a slider-crank mechanism with a ...
Ren-Chung SOONG
doaj   +1 more source

A Cu‐Based Near‐IR Active MOF with an Ion‐Pair Guest Exhibiting Versatile and Selective Gas‐Solid Reactivity

open access: yesAdvanced Materials, EarlyView.
The new Cu‐containing MOF (Me2NH2)(CuICl2)@[Cu4(INA)4Cl2O]·1.5dmf (3) contains a cation and an anion as guests and shows UV‐near‐mid‐IR absorption and near‐IR emission. MOF 3 shows gas‐solid reactivity in the presence of NH3 and HCOOH to yield two new 3D MOF.
Rajat Saha   +10 more
wiley   +1 more source

机械式压力机曲柄六杆机构运动学特性分析

open access: yesJixie chuandong, 2011
Compared with crank and slider mechanism,the ultimate output component with crank toggle as a combination transmission mechanism has some better characteristics for transmitting movement and force.The relation of position,speed and acceleration between ...
王粟   +4 more
doaj  

Experimental analysis of a water-pump driving mechanism using an orthogonal double-slider joint

open access: yesMechanical Engineering Journal, 2016
Slider-crank mechanisms are frequently used to convert between linear and rotational motion. When a slider-crank mechanism creates linear piston motion, a side force occurs between the cylinder sides and the piston head.
Takumi YOSHIZAWA   +2 more
doaj   +1 more source

New‐Era Polymer Thermoelectrics: Material Innovations, Doping Frontiers, Decoupling Strategies, and Unconventional Applications

open access: yesAdvanced Materials, EarlyView.
The field of polymer thermoelectrics is entering a new era, featuring breakthroughs in addressing the conventional performance disparity between p‐type and n‐type polymers, pioneering doping frontiers, and sophisticated decoupling strategies. This review explores innovations in molecular design and superior stabilities, bridging the gap from ...
Suhao Wang
wiley   +1 more source

Home - About - Disclaimer - Privacy