Article
Optics
Ziqian He, Kun Yin, Shin-Tson Wu
Summary: The paper proposes a miniature planar telescope mediated by liquid crystal polymers that offers angle magnification independent of incident spatial location. With two cascaded liquid crystal planar optical elements, over 84.6% optical efficiency can be achieved within the incident field range. This demonstrates the potential of cascaded liquid crystal planar optical elements for realizing functionalities that cannot be fulfilled by single optical elements and enables lightweight, low loss, passive optical transmitters for widespread applications.
LIGHT-SCIENCE & APPLICATIONS
(2021)
Article
Chemistry, Analytical
Luca Guagneli, Zekra Mousavi, Tomasz Sokalski, Ivo Leito, Johan Bobacka
Summary: A novel planar electrode for flow-through potentiometric sensing has been developed. The prepared electrodes showed stable and reproducible potentiometric response, and exhibited selectivity coefficients comparable to literature values.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Engineering, Chemical
Evgeny Rabinovich, Haim Kalman, Per F. Peterson
Summary: This study presents a parametric analysis and new design procedure for wedge-shaped silos, considering the influence of various parameters on granular flow. The results show that mass-funnel flow boundaries are largely unaffected by bin sidewall roughness, and a new design procedure is proposed to improve process efficiency by increasing accuracy and flexibility in assessing granular flow regimes.
Article
Multidisciplinary Sciences
Zhi-Yong Hu, Yong-Lai Zhang, Chong Pan, Jian-Yu Dou, Zhen-Ze Li, Zhen-Nan Tian, Jiang-Wei Mao, Qi-Dai Chen, Hong-Bo Sun
Summary: Researchers have demonstrated the potential of a miniature optoelectronic integrated compound eye camera by manufacturing polymer compound eyes with logarithmic profile ommatidia, which enables large field-of-view imaging, spatial position identification, and sensitive trajectory monitoring of moving targets. This insect-scale camera holds great promise for cutting-edge applications in endoscopy and robot vision by integrating well-developed planar imaging sensors with complex micro-optics elements.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Jun Wang, Haichao Liu, Chunya Du, Yu Liu, Bing Liu, Haoran Guan, Shaowei Guan, Zhenhua Sun, Hongyan Yao
Summary: All-organic symmetric lithium-ion batteries have promising prospects due to their environmental friendliness, structural diversity, and low cost. However, finding suitable electrode materials for achieving excellent battery performance remains a great challenge. In this study, a polymer electrode material was designed with outstanding electrochemical performance, resulting in one of the best comprehensive battery performances among all-organic LIBs reported so far.
Article
Automation & Control Systems
Mingchen Cao, Huiying Zhao, Ruiqing Xie, Lingyu Zhao, Shijie Zhao, Jinfeng Bai
Summary: A novel multiparameter optimization method based on fuzzy theory was proposed to evaluate the manufacturing efficiency and accuracy of flat optical elements with CMP. An orthogonal experimental design and a half-normal distribution were used to analyze the effect of CMP, and a combined fuzzy index of CMP was introduced. The experimental results demonstrated that the proposed method could achieve better manufacturing efficiency and accuracy simultaneously.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Automation & Control Systems
Jie Wang, Chengquan Hu, Guochen Ning, Longfei Ma, Xinran Zhang, Hongen Liao
Summary: This article presents a novel miniature spring-based cable-driven continuum manipulator characterized by its offset neutral bending plane and simple structure. The manipulator has advantages of easy miniaturization, bending stability and uniformity, a large central channel, smaller cable tension required, and low cost. Kinematics and statics models are presented, and experimental verification is conducted to confirm the accuracy and design superiority. Teleoperation experiments of peg-transfer tasks and porcine tissue laser ablation are conducted to verify the feasibility and effectiveness of the proposed manipulator in different forms. Various design variations are showcased to enrich manipulator design and functionality.
IEEE-ASME TRANSACTIONS ON MECHATRONICS
(2023)
Article
Chemistry, Analytical
J. C. McKinnon, H. H. Milioli, C. A. Purcell, C. L. Chaffer, B. Wadie, T. Alexandrov, T. W. Mitchell, S. R. Ellis
Summary: Matrix-assisted laser desorption/ionisation mass spectrometry imaging (MALDI-MSI) coupled with laser post-ionisation (MALDI-2) has been used to image low molecular weight (LMW) metabolites, revealing alterations in metabolism throughout heterogeneous tissues.
ANALYTICAL METHODS
(2023)
Article
Engineering, Electrical & Electronic
Lu Yang, Hongtao Wu, Kai Liu, Bai Chen, Shan Huang, Jiafeng Yao
Summary: This article proposes a multicircle planar electrical impedance tomography (EIT) sensor for three-dimensional (3-D) miniature imaging. The sensor addresses the low spatial resolution and severe influence of contact impedance in 3-D miniature EIT imaging. The proposed EIT sensor adopts a multicircle structure to reduce contact impedance and improve spatial resolution. Furthermore, a new driven-measurement pattern is proposed to enhance image reconstruction quality. Simulation and experiment demonstrate the effectiveness of the proposed EIT sensor, achieving high image correlation coefficients (ICC) in both cases.
IEEE SENSORS JOURNAL
(2023)
Article
Optics
Yuetian Jia, Chao Qian, Zhixiang Fan, Tong Cai, Er-Ping Li, Hongsheng Chen
Summary: Recent breakthroughs in deep learning have introduced an essential tool for optics and photonics, with applications in material design, system optimization, and automation control. Deep learning-enabled on-demand metasurface design overcomes the shortcomings of conventional simulations and physics-based methods. Inspired by object-oriented programming, a knowledge-inherited paradigm for multi-object and shape-unbound metasurface inverse design is proposed. By benchmarking the paradigm, a 86.7% accuracy is achieved in the free design of aperiodic and periodic metasurfaces. Additionally, an intelligent origami metasurface is presented to enhance satellite communication facilities.
LIGHT-SCIENCE & APPLICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Carlos Montero-Orille, Xesus Prieto-Blanco, Hector Gonzalez-Nunez, Jesus Linares
Summary: A simple polygonal model is proposed to describe the phase profile of ion-exchanged gratings, enabling their design and characterization of the ion-exchange process. Experimental validation of the model demonstrated its practical utility in designing gratings that remove zero order and splitters, with good performance achieved. The model could be beneficial for designing more complex diffractive elements in the future.
APPLIED SCIENCES-BASEL
(2021)
Article
Engineering, Electrical & Electronic
Keisuke Ueno, Shuhei Kawamura, Mingcong Deng
Summary: This article discusses the importance of soft actuators and their studies, as well as the characteristics and forms of flexible actuators, and the problems and solutions of the previously proposed adaptive Lambda tracking control and flow control methods.
Article
Optics
Xinpu Zhang, Xuhui Zhang, Yang Zhang, Wei Peng
Summary: A novel high-temperature resistant, miniature all-fiber interferometer is experimentally demonstrated, which can be formed by an angled fiber without any additional components, exhibiting excellent high-temperature resistance and good sensitivity.
Article
Automation & Control Systems
Mihai Nica, Cameron Forbrigger, Eric Diller
Summary: Untethered magnetically actuated robots have significant advantages for biomedical applications. A novel microtransmission system is proposed to amplify the output force, and its behavior is analyzed and validated through experiments.
IEEE-ASME TRANSACTIONS ON MECHATRONICS
(2022)
Article
Chemistry, Analytical
Wanzhen Han, Shiyu Du, Caowei Tang, Yiling Li, Ting Jiang, Wei Xu
Summary: The integration of a liquid-phase ion trap with a miniature mass spectrometer improves detection sensitivity and enables enrichment and separation of ions, making it suitable for the analysis of low abundant target molecules.
ANALYTICA CHIMICA ACTA
(2022)