Results 111 to 120 of about 149,579 (300)

Additively Manufactured Porous Ceramics as Tunable Dielectrics for Passive Temperature Sensing

Advanced Materials Technologies, EarlyView.
Porous ceramic lattices, 3D‐printed from a multicomponent oxide ink, are integrated with LC resonators for passive wireless temperature sensing. By tuning porosity, the dielectric properties and RF response are engineered to produce distinct resonant frequency shifts with temperature. The results establish a structure‐driven approach to customizing the
Sogol Heidarishahrivar, Aminul Islam, Chang Woo Gal, Insup Kim, Yeong‐Jin Choi, Woo Soo Kim   +5 more
wiley   +1 more source

Comparison of flow characteristics and performance between horizontally oriented hybrid hydrokinetic turbine rotors

Alexandria Engineering Journal
The present study aimed to reveal the operation and flow characteristics of horizontally oriented hybrid hydrokinetic turbine rotors composed of Bach and H rotors.
Can Kang, Xiaoyu Jia, Kejin Ding, Yongchao Zhang, Hyoung-Bum Kim   +4 more
doaj   +1 more source

Can Initial Torque Value Predict the Success of Orthodontic Mini-Screws?

Turkish Journal of Orthodontics, 2013
Objective:To investigate the correlation between initial torque and removal torque of orthodontic mini-screws.Materials and Method:Sixty-four orthodontic mini-screws (measuring 1.5 × 4.4 mm, 1.6 × 4.7 mm, 1.7 × 5.5 mm, and 1.8 × 5.6 mm) were used.
Tolga Topcuoglu, Ali Altug Bicakci, Oral Sokucu, N. Eren Isman   +3 more
doaj   +1 more source

Recent Advances of Slip Sensors for Smart Robotics

Advanced Materials Technologies, EarlyView.
This review summarizes recent progress in robotic slip sensors across mechanical, electrical, thermal, optical, magnetic, and acoustic mechanisms, offering a comprehensive reference for the selection of slip sensors in robotic applications. In addition, current challenges and emerging trends are identified to advance the development of robust, adaptive,
Xingyu Zhang, Liao Wu, Shuai He, Zhao Sha, Yuwan Huang, Shuying Wu, Dewei Chu, Chun H. Wang, Shuhua Peng   +8 more
wiley   +1 more source

Vibration and Control Characteristics of Downhole Drill String System

Shiyou jixie, 2022
Stick slip vibration seriously affects the life of drill string system,prolongs the drilling cycle,and endangers the safety of staff.In order to solve the problem of stick slip vibration caused by linear torque load and friction load in drilling ...
Ma Sunan, Yi Xianzhong, Zhou Yuanhua, Zhang Hua, He Jingbin, Wang Yanbin, Ma Xiqi   +6 more
doaj  

Modeling and Lyapunov-designed based on adaptive gain sliding mode control for wind turbines [PDF]

, 2016
In this paper, modeling and the Lyapunov-designed control approach are studied for the Wind Energy Conversion Systems (WECS). The objective of this study is to ensure the maximum energy production of a WECS while reducing the mechanical stress on the ...
Boumediene, Larbi, Djamel Eddine Kerrouche, Kamel, Mezouar, Abdelkader, Van den Bossche, Alex   +3 more
core  

Bay‐functionalized [7]Helicene Bilayer Nanographenes

Advanced Optical Materials, EarlyView.
Bay‐functionalized [7]helical bilayer nanographenes are synthesized via a scalable, modular strategy enabling late‐stage diversification. Tailored methoxy, diketone, and phenazine substitutions precisely tune redox, photophysical, and chiroptical properties, delivering strong electronic circular dichroism and bright circularly polarized luminescence ...
Anmol Thanai, Vikas Sharma, Louis Minion, Hassan Khan, Hadeel Abbas, George F. S. Whitehead, Avantika Hasija, Jessica Wade, Matthew John Fuchter, Ashok Keerthi   +9 more
wiley   +1 more source

Unified Compact Formulas of Output Characteristics for External Hydraulic Gear-motors

Jixie chuandong
In order to correctly understand the output characteristics of gear-motors with different types of backlash sizes/offset unloading slots, a unified simplified formula for output characteristics such as speed/torque is constructed based on the different ...
Liu Ping, Li Yulong, Hou Xinyu, Zhang Lihua   +3 more
doaj  

FIELD TEST STUDY ON THE PERFORMANCE OF SIX-BLADE SPIRAL HORIZONTAL AXIS WIND TURBINE RELATED TO THE EFFECT OF SOLIDITY NUMBER

Jurnal Teknik Mesin
Fossil fuels are still a daily necessity in the world. Human dependence on fossil fuels has created problems related to pollution and energy security.
remboko remboko, Abdul Hamid
doaj   +1 more source

Photonics of Topological Magnetic Textures

Advanced Optical Materials, EarlyView.
Localized noncollinear magetic textures imprint their geometry and topology onto traversing photonic fields endowing them with orbital angular‐momentum, chirality, and magnetoelectric densities. Abstract Topological textures in magnetically ordered materials are an important case studies for fundamental research with promising applications in data ...
Vakhtang Jandieri, Ramaz Khomeriki, Daniel Erni, Nicolas Tsagareli, Qian Li, Douglas H. Werner, Jamal Berakdar   +6 more
wiley   +1 more source