Results 31 to 40 of about 10,213 (232)

Development of Heat Engines Powered by Twisted and Coiled Polymer Fiber Actuators

Advanced Materials Technologies, Volume 11, Issue 8, 17 April 2026.
Continuously rotating engines driven by thermally responsive actuating materials can turn waste heat into useful energy. For the first time heat engines operated by twisted and coiled polymer fiber actuators are demonstrated with engine design guided by two simple analytical models.
Geoffrey M. Spinks, Burhan Bin Asghar Abbasi, Zhen Jiang   +2 more
wiley   +1 more source

Molecular Photogearing for Controlling Rotary Motion at the Nanoscale

ChemPlusChem, Volume 91, Issue 4, April 2026.
Molecular gears capable of controlling and transmitting rotary motion at the nanoscale are indispensable for the construction of artificial molecular machines. In this concept, we discuss how molecular photogears featuring a propeller‐shaped motif attached to a light‐driven molecular motor offer new possibilities to perform these tasks with better ...
Enrique M. Arpa, Bo Durbeej
wiley   +1 more source

Automated Benchmarking of Variable‐Property Soft Robotic Fingertips to Enable Task‐Optimized Sensor Selection

Advanced Science, Volume 13, Issue 15, 13 March 2026.
Sensorized fingertips are needed to unlock robotic dexterity, versatility, and diverse interactions. Here, 15 identically‐shaped robotic fingertips are benchmarked by a fully automated toolchange system, covering eight different materials and six broadly‐ranging sensing mechanisms.
David Hardman, Benhui Dai, Qinghua Guan, Antonia Georgopoulou, Fumiya Iida, Josie Hughes   +5 more
wiley   +1 more source

Universal Mathematical Model and Tooth Flank Comparison of Spiral Bevel Gear and Cycloid Bevel Gear

Jixie chuandong, 2016
Aiming to the spiral bevel gears and cycloid bevel gears,the universal mathematical model is established,and the tooth flank geometry comparison is carried out.
Nie Shaowu, Deng Xiaozhong, Wei Bingyang, Li Jubo   +3 more
doaj  

Policy Spandrels: How Design Decisions Can Open Up Spaces for Unintended Policy Change

European Policy Analysis, Volume 12, Issue 2, Spring 2026.
ABSTRACT This article introduces the concept of policy spandrels to make sense of public policies producing second‐order effects that are unintentional from the perspective of policy design and yet are fraught with consequences. By analogy with architectural spandrels—leftover spaces that can be used for unforeseen purposes—policy change can be enabled
Martino Maggetti
wiley   +1 more source

Формирование конических зубьев с циклическим продольным профилем на универсальных многокоординатных станках с ЧПУ [PDF]

, 2009
На основі синтезу та аналізу конічних зубчастих зачеплень розроблена математична модель формоутворення й оптимізації конічних коліс із циклічним поздовжнім профілем зуба, на універсальних багатокоординатных верстатах з ЧПУ.On the basis of synthesis and ...
Волошин, А. И., Воробьев, Н. Д., Стрельников, В. Н., Суков, Г. С.   +3 more
core  

Hydraulic In Vitro Characterization of MR‐Conditional Blood Pumps

Artificial Organs, Volume 50, Issue 3, Page 393-403, March 2026.
Cardiac surgery in neonates requires close placement of cardiopulmonary bypass machines due to limited blood volume, complicating MR compatibility. This study introduces three MR‐conditional blood pump prototypes. None interfered with MRI imaging, though RF‐related sensor effects remain untested.
Dominik T. Schulte, Marcel Renggli, Henning Richter, Francesca Del Chicca, Michael Hofmann, Martin O. Schmiady, Marianne Schmid Daners   +6 more
wiley   +1 more source

Research on CNC machining technology of straight bevel gears based on hypocycloids

Scientific Reports
Bevel gear transmission is characterized by strong load capacity, stable transmission, and compact structure. It is a key component in power transmission systems for vehicles, ships, machine tools, oil drilling equipment, aerospace, and other industries.
Chong Tian, Taiyong Wang, Ying Tian, Xinyu Zhang   +3 more
doaj   +1 more source

INFLUENCE OF ASSEMBLY ERRORS OF BEVEL GEAR PAIR ON THE MESH QUALITY [PDF]

Scientific Journal of Silesian University of Technology. Series Transport, 2014
The paper describes the influence of bevel gears assembly errors on the resulting contact pattern, which is an essential parameter for the mesh, both in the design and control of the transmission.
Jadwiga PISULA, Mieczysław PŁOCICA
doaj  

Torque‐Transmitting Architected Metamaterials for Flexible and Extendable Tubular Robotics

Advanced Intelligent Systems, Volume 8, Issue 2, February 2026.
Soft and continuum robots commonly rely on fluid, tendon, or rod‐based power transmissions, to control robotic form and actuation. This study presents an architected structure, based on patterned straight‐line mechanisms, that enables simultaneous bending, extending, and torsionally rigid (BETR) transmission.
Sawyer Thomas, Aman Garg, Jeffery Lipton
wiley   +1 more source