Results 131 to 140 of about 20,107 (303)

AI–Guided 4D Printing of Carnivorous Plants–Inspired Microneedles for Accelerated Wound Healing

Advanced Materials, EarlyView.
This work presents an artificial intelligence (AI)‐guided 4D‐printed microneedle platform inspired by carnivorous plants for wound healing. A thermo‐responsive shape memory polymer enables body temperature–triggered self‐coiling for autonomous wound closure.
Hyun Lee, Moon‐Jo Kim, DongEung Kim, Chan Ho Moon, Seojoon Bang, Hyeong Seok Kang, Ju Yeong Gwon, Jong Hwa Seo, Junhyub Jeon, Junhyuk Son, Munwon Lim, Minho Kang, Dong Yun Lee, Donghyun Lim, Jung‐Hoon Park, Gi Doo Cha, Soo‐Hong Lee, Tae‐Sik Jang, Kisuk Yang, Yunho Jeong, Youngho Eom, Hyun‐Do Jung   +21 more
wiley   +1 more source

Modeling of machine tool thermal error based on factor extraction

Journal of Physics: Conference Series
Abstract In the process of modeling thermal errors in machine tools, optimizing the extraction of temperature information affects the prediction accuracy of the thermal error model. This paper proposes a thermal error modeling method based on factor extraction.
Shunyu Zhang, Liang Peng, Zhenlei Chen
openaire   +1 more source

Analysing the Impact of Process Dependent Thermal Loads on the Prediction Accuracy of Thermal Effects in Machine Tool Components

99115Thermal changes are one major reason for machining errors. The simulation of thermal compensation processes is therefore of extraordinary importance for the correction and compensation of thermal errors.
Wenkler, Eric, Steiert, Christoph, Ihlenfeldt, Steffen, Boos, Eugen   +3 more
core   +1 more source

Conductive Hydrogels for Exogenous Sensing and Cell Fate Control

Advanced Materials, EarlyView.
We engineer electrically conductive hydrogels by combining sulfated glycosaminoglycans with semiconducting polymers. These hydrogels bind bioactive proteins, including growth factors, whose release or retention can be modulated by low‐voltage stimulation. The hydrogels are also integrated as 3D channels in organic electrochemical transistors as part of
Teuku Fawzul Akbar, Carlos Alejandro Jimenez‐Rodriguez, Railia Biktimirova, Ilka Hermes, Thomas Kurth, My Duyen Pham, Mikhail Tsurkan, Jens Friedrichs, Francis L. C. Morgan, Hans Kleemann, Olga Guskova, Uwe Freudenberg, Peter Fratzl, Carsten Werner, Christoph Tondera, Ivan R. Minev   +15 more
wiley   +1 more source

Evaluation and Comparison of a Large Machine Tool Structure with ISO Standard Alignment Tests

, 2009
In order to satisfactorily machine precision components it is necessary for machine tools to be able to achieve extremely high levels of geometric accuracy.
Longstaff, Andrew P., Myers, A., Barrans, Simon, Longstaff, A. P., Fletcher, Simon, Barrans, S. M., Fletcher, S., Ford, Derek G., Ford, D. G., Myers, Alan   +9 more
core  

Large‐Scale Determination of Frontier Orbital Energies of Disordered Small‐Molecule Organic Semiconductors Using Exciplex Emission Spectra

Advanced Materials, EarlyView.
ABSTRACT Accurately knowing the frontier orbital energies of the structurally disordered small‐molecule organic semiconductors that are used in optoelectronic devices such as organic light‐emitting diodes is required to rationally improve their performance. Here, we show that these energies can be deduced with a large accuracy from the peak energies of
Christian B. McDonald, Hiroki Tomita, Giacomo Cotelli, Louka L. Brüll, Nanno G. de Rooij, Lucas R.L. Norg, Milo Clément, Reinder Coehoorn   +7 more
wiley   +1 more source

Application of a New Optimizing Method for the Measuring Points of CNC Machine Thermal Error Based on Grey Synthetic Degree of Association

工程科学与技术, 2008
:A new methodology used to solve the problem of the selection of key thermal points of the CNC machine tool thermal error based on the grey synthetic degree of association was proposed.
闫嘉钰, 张宏韬, 刘国良
doaj  

Electronic based accuracy enhancement of CNC machine tools

The need for better machine tool accuracy is discussed together with the factors which can affect machine tool accuracy. A study is made of the various techniques adopted for the reduction of errors in machine tools. The concept of error compensation
Postlethwaite, Scott R.
core  

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

Synthetically Modeling for the Thermal Error and Cutting Force Induced Error on a CNC Turning Center

工程科学与技术, 2008
:Thermal deformation and cutting force induced deformation of the machine tool structure are two most significant causes of machining errors,and error compensation technique is an effective way to improve the manufacturing accuracy of the NC machine ...
吴昊, 杨建国, 张宏韬
doaj