Article
Optics
Aleksandra K. Korzeniewska, Slawomir Drobczynski
Summary: We propose a modified method for measuring liquid viscosity in an optical tweezer system. The method has been theoretically and experimentally validated and allows for quick measurements without occupying much space. Additionally, the use of a camera enables other measurements in the same sample, such as in the field of molecular biology. The presented method can measure liquid viscosities up to 2.5 mPa * s.
OPTICS AND LASERS IN ENGINEERING
(2023)
Article
Engineering, Electrical & Electronic
Shangjian Zhang, Wei Li, Wei Chen, Yali Zhang, Ninghua Zhu
Summary: This paper reviews the development of optical or electrical measurement methods for characterizing frequency responses of optoelectronic devices. It highlights the importance of accurate calibration standards and addresses the indetermination problem in E/O and O/E device characterization. The transfer of calibration standards from optical to electrical domain is emphasized as a prominent approach to solve this issue.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Optics
Qinghua Tian, Shenghua Zhang, Fu Wang, Zhipei Li, Ran Gao, Feng Tian, Leijing Yang, Qi Zhang, Yongjun Wang, Xiangjun Xin
Summary: This research proposes a range selectable data-rate measurement method based on multi-frequency sampling for accurate measurement of the data rate of the signal under test (SUT), independent of the modulation format. The method can also determine the sampling order, enabling the correct plotting of eye diagrams. Experimental results show that the measured baud-rate has a relative error of less than 0.17% and an error vector magnitude (EVM) of less than 0.38 for PDM-QPSK signals in various ranges. Compared to existing methods, our proposed method allows for the selection of the measurable data-rate range and the determination of the sampling order under the same sampling cost, greatly expanding the measurable data-rate range of the SUT. Therefore, the data-rate measurement method with selectable range has significant potential for high-speed signal data-rate monitoring.
Article
Oncology
Essam H. Houssein, Osama Mohamed, Nagwan Abdel Samee, Noha F. Mahmoud, Rawan Talaat, Aymen M. Al-Hejri, Riyadh M. Al-Tam
Summary: In this study, a technique for training the classification of WBCs for leukemia detection is described using a combination of the recently developed pretrained CNN DenseNet and the one fit cycle policy. The proposed method is more accurate compared to the state of the art.
FRONTIERS IN ONCOLOGY
(2023)
Article
Chemistry, Analytical
Juan A. Moreno-Perez, Isidoro Ruiz-Garcia, Ismael Navarro-Marchal, Nuria Lopez-Ruiz, Pablo J. Gomez-Lopez, Alberto J. Palma, Miguel A. Carvajal
Summary: This system can measure the flight time and height reached by the user through an Android application, providing monitoring for sports training and injury prevention. The performance tests confirmed the system's potential for monitoring high-level sports training sessions.
Article
Chemistry, Physical
Zedong Lin
Summary: This article presents a more accurate method to extract the density of trap state distribution, exploring the difficulties in existing techniques and making theoretical improvements. Results show a quadratic relationship between carrier lifetime and photo-voltage, indicating a more accurate method for DOST distribution extraction.
Article
Optics
Mengzhu Hu, Nan Li, Wenqiang Li, Xia Wang, Huizhu Hu
Summary: The paper investigates the optical forces of particles in optical tweezers under non-ideal conditions using FDTD method and MST. Numerical results show changes in trapping stiffness and equilibrium position due to common non-ideal conditions in experiments. This study aims to estimate errors in optical force in real situations and optimize the performance of optical tweezers.
OPTICS COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Qiangqiang Liu, Jiankui Chen, Hua Yang, Zhouping Yin
Summary: This article proposes an accurate measurement method for the volume of flying droplets based on stereo vision. The method uses a technique for acquiring high-resolution droplet images from multiple viewpoints and an accurate binocular droplet image segmentation algorithm to reconstruct and calculate the droplet volume without any symmetry assumptions. The results show a high measurement accuracy and low relative standard uncertainty.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2022)
Article
Optics
Haoming Zhang, Gongliu Yang, Xiaowen Gao, Cuihong Li, Shaochong Zhu, Huizhu Hu
Summary: We propose an orthogonal-transmitting double-beam optical trap (OTDBOT) scheme for three-dimensional capture of microspheres and relative gravitational acceleration sensing. The system uses a weak-focused vertical beam to counteract the initial gravity of the microspheres and a horizontal high-focused beam to provide relative gravimetry. The scheme has a wide dynamic measurable range and high sensitivity.
OPTICS COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Haining Feng, Shilong Jin, Hui An, Xinlin Chen, Zhongqi Tan, Hui Luo, Guangzong Xiao
Summary: In this paper, we described a dual-fiber optical trap created using spherical-tapered ended fiber pigtailed to 1436 nm laser diodes. Compared with the dual flat ended fiber optical trap, this dual spherical-tapered ended fiber optical trap showed improvements in axial and lateral stiffness, increasing trapping efficiency and expanding application range and reliability. Additionally, integrating the dual-fiber optical trap into an optical chip improved system stability.
APPLIED SCIENCES-BASEL
(2022)
Article
Engineering, Multidisciplinary
Gao Feng, Pan Ziyue, Zhang Xutao, Li Yan, Duan Jihao
Summary: This study employed a NURBS-based parametric model to assess the geometrical deviation of aeroengine blade surfaces and proposed an adaptive surface sampling strategy, which was validated through simulations. The developed method showed the least deviation between the measured blade surface and its reconstructed model among all compared methods, while maintaining the same number of selected check points.
Editorial Material
Engineering, Aerospace
Changyu Huang, Honglei Qin, Chao Zhao, Huaiyuan Liang
Summary: This article proposes a method for accurate Doppler measurement in the time domain, which improves the stability and reliability of Doppler positioning by measuring the change rate of signal phase over time.
IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS
(2022)
Article
Engineering, Multidisciplinary
Simon Hartlieb, Michael Tscherpel, Flavio Guerra, Tobias Haist, Wolfgang Osten, Michael Ringkowski, Oliver Sawodny
Summary: The experimental approach presents a highly accurate imaging-based stereo measurement setup with the ability to detect multiple target points with great precision. By holographically replicating each point light source and averaging the center positions of all spots on the camera sensor, the system achieves high accuracy.Validation with interferometers as reference sensors shows minimal residual error in two- and three-dimensional trajectory measurements.
Article
Engineering, Electrical & Electronic
Florian Azendorf, Annika Dochhan, Michael H. Eiselt
Summary: The C-OTDR method presented in this paper achieves high accuracy in measuring propagation delay through the use of a high data rate and specific techniques. It can be applied for monitoring link delay and chromatic dispersion of long fiber spans, as well as temperature sensing applications.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Youbin Mo, Mounir Fizari, Kristina Koharchik, Douglas E. Smith
Summary: This study demonstrates a more robust method for calibrating biophysical force and displacement measurements using DNA molecules, especially in the high force range. It shows how small variations in microsphere sizes can affect DNA length measurements and provides methods for correcting these errors. Additionally, it showcases how these measurements can be used to check the assumed linearities of system responses and assess trap compliance and positioning by combining microsphere imaging with DNA stretching.
FRONTIERS IN MOLECULAR BIOSCIENCES
(2021)
Article
Chemistry, Applied
Ma Fenbo, Pang Xiangchao, Tang Bin
CARBOHYDRATE POLYMERS
(2019)
Article
Multidisciplinary Sciences
Ling Guo, Chunhong Cui, Kuo Zhang, Jiaxin Wang, Yilin Wang, Yixuan Lu, Ka Chen, Jifan Yuan, Guozhi Xiao, Bin Tang, Ying Sun, Chuanyue Wu
NATURE COMMUNICATIONS
(2019)
Article
Chemistry, Applied
Li Sijing, Ma Fenbo, Pang Xiangchao, Tang Bin, Lin Lijun
CARBOHYDRATE POLYMERS
(2019)
Article
Materials Science, Biomaterials
Jing Ma, Yizebang Xue, Xinyu Liang, Chengzhu Liao, Zhijie Tan, Bin Tang
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
(2019)
Article
Biophysics
Zhen Li, Songjian Zhao, Huizhen Wang, Ying Peng, Zhijie Tan, Bin Tang
COLLOIDS AND SURFACES B-BIOINTERFACES
(2019)
Article
Biochemistry & Molecular Biology
Kui Wang, Yuntian Xue, Ying Peng, Xiangchao Pang, Yuanjun Zhang, L. I. Ruiz-Ortega, Ye Tian, A. H. W. Ngan, Bin Tang
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
(2019)
Article
Chemistry, Medicinal
Zhen Li, Ying Peng, Xiangchao Pang, Bin Tang
Article
Biochemistry & Molecular Biology
Yuqing Deng, Fenbo Ma, L. I. Ruiz-Ortega, Ying Peng, Ye Tian, Wenqi He, Bin Tang
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2019)
Article
Materials Science, Multidisciplinary
Ye Tian, Xiangchao Pang, Bin Tang, Xing Cheng
Article
Chemistry, Applied
Zhen Li, Zhenjian Li, Sijing Li, Kui Wang, Fenbo Ma, Bin Tang
MICROPOROUS AND MESOPOROUS MATERIALS
(2020)
Article
Multidisciplinary Sciences
Zhen Li, Ying Peng, Xingyu Xia, Zhe Cao, Yuqing Deng, Bin Tang
SCIENTIFIC REPORTS
(2019)
Article
Materials Science, Biomaterials
Xiangchao Pang, Caijie Yuan, Rui Sun, Kui Wang, Bin Tang
Summary: The study revealed that the unfolding processes of apo-azurin and holo-azurin are different, with holo-azurin requiring a stronger force to unfold. The copper cluster significantly impacts the stability and folding process of holoazurin, with the copper ion leaving the unfolded azurin during the process. Rarely reported in previous studies, the mechanical strength of the Cu-N(His) bond of the copper cluster was found in this research, providing new insights for azurin's anticancer activity extension.
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2021)
Article
Engineering, Biomedical
Zhe Zheng, Liqiu Hu, Yongmei Ge, Jianchao Qi, Qili Sun, Zhenjian Li, Lijun Lin, Bin Tang
Summary: In this study, strontium chondroitin sulfate was successfully introduced into the surface of poly(ether ether ketone) (PEEK) through a simple chemical grafting method. The modified PEEK material exhibited improved cell compatibility, osteogenic activity, and angiogenic activity, while reducing inflammation.
ADVANCED HEALTHCARE MATERIALS
(2022)
Editorial Material
Biophysics
Qili Sun, Zhanpeng Liu, Chao Xie, Liqiu Hu, Huili Li, Yongmei Ge, Lijun Lin, Bin Tang
Summary: Physical exercise releases BDNF to promote bone formation and healing. Researchers have developed a multifunctional drug system using 7,8-DHF@ZIF-8, which combines ZIF-8's properties with that of 7,8-DHF similar to BDNF. The system showed slow and controlled drug release, enhanced cell proliferation, and improved gene expression related to bone formation and angiogenesis, indicating its potential in facilitating bone defect healing.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2023)
Article
Materials Science, Biomaterials
Fenbo Ma, Yongmei Ge, Nian Liu, Xiangchao Pang, Xingyu Shen, Bin Tang
JOURNAL OF MATERIALS CHEMISTRY B
(2019)