55,519 results match your criteria Automation And Remote Control[Journal]


Flow field perception based on the fish lateral line system.

Bioinspir Biomim 2019 Apr 17. Epub 2019 Apr 17.

Beihang University, Beijing, CHINA.

Fish are able to perceive the surrounding weak flow and pressure variations with their mechanosensory lateral line system, which consists of a superficial lateral line for flow velocity detection and a canal lateral line for flow pressure gradient perception. Achieving a better understanding of the flow field perception algorithms of the lateral line can contribute not only to the design of highly sensitive flow sensors, but also to the development of underwater smart skin with good hydrodynamic imaging properties. In this review, we discuss highly sensitive flow-sensing mechanisms for superficial and canal neuromasts and flow field perception algorithms. Read More

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http://dx.doi.org/10.1088/1748-3190/ab1a8dDOI Listing

Exploring the fatigue affecting electroencephalography based functional brain networks during real driving in young males.

Neuropsychologia 2019 Apr 14. Epub 2019 Apr 14.

Department of Mechanical Engineering and Automation, Northeastern University, 110819 Shenyang, Liaoning, China.

In recent years, a large proportion of traffic accidents are caused by driver fatigue. The brain has been conceived as a complex network, whose function can be assessed with EEG. Hence, in this research, fourteen subjects participated in the real driving experiments, and a comprehensive EEG-based expert system was designed for detecting driver fatigue. Read More

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http://dx.doi.org/10.1016/j.neuropsychologia.2019.04.004DOI Listing

A new statistic for efficient detection of repetitive sequences.

Bioinformatics 2019 Apr 16. Epub 2019 Apr 16.

Department of Automation, MOE Key Laboratory of Bioinformatics; Bioinformatics Division and Center for Synthetic & Systems Biology, BNRist, Tsinghua University, Beijing, China.

Motivation: Detecting sequences containing repetitive regions is a basic bioinformatics task with many applications. Several methods have been developed for various types of repeat detection tasks. An efficient generic method for detecting most types of repetitive sequences is still desirable. Read More

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http://dx.doi.org/10.1093/bioinformatics/btz262DOI Listing

A 2D laser rangefinder scans dataset of standard EUR pallets.

Data Brief 2019 Jun 22;24:103837. Epub 2019 Mar 22.

Department of Informatics, Bioengineering, Robotics and Systems Engineering (DIBRIS), University of Genoa, Italy.

In the past few years, the technology of automated guided vehicles (AGVs) has notably advanced. In particular, in the context of factory and warehouse automation, different approaches have been presented for detecting and localizing pallets inside warehouses and shop-floor environments. In a related research paper Mohamed et al. Read More

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http://dx.doi.org/10.1016/j.dib.2019.103837DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6449777PMC

Synchronization of interconnected heterogeneous networks: The role of network sizes.

Sci Rep 2019 Apr 16;9(1):6154. Epub 2019 Apr 16.

Rensselaer Polytechnic Institute, Computer Science Department & Network Science and Technology Center, Troy, New York, 12180, USA.

Increasing evidence shows that real networks interact with each other, forming a network of networks (NONs). Synchronization, a ubiquitous process in natural and engineering systems, has fascinatingly gained rising attentions in the context of NONs. Despite efforts to study the synchronization of NONs, it is still a challenge to understand how do the network sizes affect the synchronization and its phase diagram of NONs coupled with nonlinear dynamics. Read More

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http://dx.doi.org/10.1038/s41598-019-42636-6DOI Listing

Shrinkage and Durability Evaluation of Environmental Load-Reducing FRPCM by Using Silicone Oil.

Materials (Basel) 2019 Apr 15;12(8). Epub 2019 Apr 15.

School of Architecture and Civil Engineering, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, Korea.

In this study, the shrinkage and durability of environmental load-reducing fiber-reinforced polymer cement mortar (FRPCM) were examined by using silicone oil. The results indicated that the shrinkage can be greatly reduced by adding silicone oil. However, when the silicone oil is added in excess, it affects the strength and durability. Read More

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http://dx.doi.org/10.3390/ma12081240DOI Listing

Effect of Stress Wave between Adjacent Asperities Interaction on Subsurface Damage of Optical Glass in Precision Grinding.

Materials (Basel) 2019 Apr 15;12(8). Epub 2019 Apr 15.

College of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350116, China.

The interaction between adjacent asperities is a typical characteristic of the grinding process and plays an important role in the material removal mechanism. Therefore, in order to systematically investigate the formation mechanism of the subsurface damage, a precision grinding contact model between the diamond particle and optical glass with adjacent asperities is proposed in our research. The initiation and propagation mechanism of median/lateral cracks under residual stress, the propagation rules of the stress waves on the subsurface, and the interaction between the subsurface damage under stress superposition effect are fully investigated by a theoretical analysis and finite element simulation. Read More

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http://dx.doi.org/10.3390/ma12081239DOI Listing

Attitude Measurement for High-Spinning Projectile with a Hollow MEMS IMU Consisting of Multiple Accelerometers and Gyros.

Sensors (Basel) 2019 Apr 15;19(8). Epub 2019 Apr 15.

School of Automation, Beijing Institute of Technology, Beijing 100081, China.

A low cost, high precision hollow structure MEMS IMU has been developed to measure the roll angular rate of a high-spinning projectile. The hollow MEMS IMU is realized by designing the scheme of non-centroid configuration of multiple accelerometers. Two dual-axis accelerometers are respectively mounted on the pitch axis and the yaw axis away from the center of mass of the high-spinning projectile. Read More

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http://dx.doi.org/10.3390/s19081799DOI Listing

Mapping Tobacco Fields Using UAV RGB Images.

Sensors (Basel) 2019 Apr 15;19(8). Epub 2019 Apr 15.

Institute of Remote Sensing Science and Engineering, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China.

Tobacco planting information is an important part of tobacco production management. Unmanned aerial vehicle (UAV) remote sensing systems have become a popular topic worldwide because they are mobile, rapid and economic. In this paper, an automatic identification method for tobacco fields based on UAV images is developed by combining supervised classifications with image morphological operations, and this method was used in the Yunnan Province, which is the top province for tobacco planting in China. Read More

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http://dx.doi.org/10.3390/s19081791DOI Listing

Utilization of waste cake for fermentative ethanol production.

Sci Total Environ 2019 Apr 8;673:378-383. Epub 2019 Apr 8.

School of Automation, The Belt and Road Information Research Institute, Hangzhou Dianzi University, Hangzhou 310018, China. Electronic address:

In this study, utilization of waste cake for bioethanol production via a two-step of enzymatic hydrolysis and ethanol fermentation was developed. At the first step, namely waste cake hydrolysis, effects of α-amylase volumes (C1: 0.1 mL/L, C2: 0. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.04.079DOI Listing

The Hierarchical Continuous Pursuit Learning Automation: A Novel Scheme for Environments With Large Numbers of Actions.

IEEE Trans Neural Netw Learn Syst 2019 Apr 11. Epub 2019 Apr 11.

Although the field of learning automata (LA) has made significant progress in the past four decades, the LA-based methods to tackle problems involving environments with a large number of actions is, in reality, relatively unresolved. The extension of the traditional LA to problems within this domain cannot be easily established when the number of actions is very large. This is because the dimensionality of the action probability vector is correspondingly large, and so, most components of the vector will soon have values that are smaller than the machine accuracy permits, implying that they will never be chosen. Read More

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http://dx.doi.org/10.1109/TNNLS.2019.2905162DOI Listing

A 10-nm Spectral Resolution Hyperspectral LiDAR System Based on an Acousto-Optic Tunable Filter.

Sensors (Basel) 2019 Apr 4;19(7). Epub 2019 Apr 4.

Key Laboratory of Quantitative Remote Sensing Information Technology, Chinese Academy of Sciences (CAS), Beijing 100094, China.

Hyperspectral LiDAR (HSL) technology can obtain spectral and ranging information from targets by processing the recorded waveforms and measuring the time of flight (ToF). With the development of the supercontinuum laser (SCL), it is technically easier to develop an active hyperspectral LiDAR system that can simultaneously collect both spatial information and extensive spectral information from targets. Compared with traditional LiDAR technology, which can only obtain range and intensity information at the selected spectral wavelengths, HSL detection technology has demonstrated its potential and adaptability for various quantitative applications from its spectrally resolved waveforms. Read More

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http://dx.doi.org/10.3390/s19071620DOI Listing

Formation Generation for Multiple Unmanned Vehicles Using Multi-Agent Hybrid Social Cognitive Optimization Based on the Internet of Things.

Sensors (Basel) 2019 Apr 2;19(7). Epub 2019 Apr 2.

Science and Technology on Information Systems Engineering Laboratory, Beijing Institute of Control & Electronics Technology, Beijing 100038, China.

Multi-agent hybrid social cognitive optimization (MAHSCO) based on the Internet of Things (IoT) is suggested to solve the problem of the generation of formations of unmanned vehicles. Through the analysis of the unmanned vehicle formation problem, formation principles, formation scale, unmanned vehicle formation safety distance, and formation evaluation indicators are taken into consideration. The application of the IoT enables the optimization of distributed computing. Read More

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http://dx.doi.org/10.3390/s19071600DOI Listing

Maneuvering Target Tracking Using Simultaneous Optimization and Feedback Learning Algorithm Based on Elman Neural Network.

Sensors (Basel) 2019 Apr 2;19(7). Epub 2019 Apr 2.

Robotics Institute, Carnegie Mellon University, Pittsburgh, PA 15217, USA.

Tracking maneuvering targets is a challenging problem for sensors because of the unpredictability of the target's motion. Unlike classical statistical modeling of target maneuvers, a simultaneous optimization and feedback learning algorithm for maneuvering target tracking based on the Elman neural network (ENN) is proposed in this paper. In the feedback strategy, a scale factor is learnt to adaptively tune the dynamic model's error covariance matrix, and in the optimization strategy, a corrected component of the state vector is learnt to refine the final state estimation. Read More

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http://dx.doi.org/10.3390/s19071596DOI Listing

New Approaches to Implementing the SmartJacket into Industry 4.0 .

Sensors (Basel) 2019 Apr 2;19(7). Epub 2019 Apr 2.

Brno University of Technology, Faculty of Electrical Engineering and Communication, 61600 Brno, Czech Republic.

The paper discusses the possibilities of incorporating sensors and indicators into the environment of an Industry 4.0 digital factory. The concept of Industry 4. Read More

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http://dx.doi.org/10.3390/s19071592DOI Listing

Depth Map Upsampling via Multi-Modal Generative Adversarial Network.

Sensors (Basel) 2019 Apr 2;19(7). Epub 2019 Apr 2.

Department of Computer Science and Information Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan.

Autonomous robots for smart homes and smart cities mostly require depth perception in order to interact with their environments. However, depth maps are usually captured in a lower resolution as compared to RGB color images due to the inherent limitations of the sensors. Naively increasing its resolution often leads to loss of sharpness and incorrect estimates, especially in the regions with depth discontinuities or depth boundaries. Read More

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http://dx.doi.org/10.3390/s19071587DOI Listing

Research on the Surface Evolution of Single Crystal Silicon Mirror Contaminated by Metallic Elements during Elastic Jet Polishing Techniques.

Materials (Basel) 2019 Apr 2;12(7). Epub 2019 Apr 2.

College of Artificial Intelligence and Automation, National University of Defense Technology, 109 Deya Road, Changsha 410073, Hunan, China.

Metallic elements can contaminate single crystal silicon mirror during ion beam etching (IBE) and other postprocessing methods, which can affect the performance of components in an infrared laser system. In this work, scanning electron microscope (SEM) and atomic force microscope (AFM) were used to characterize the distribution of contaminant represented by aluminum (Al). After characterizing contaminated area, elastic jet polishing (EJP), EJP, and static alkaline etching (SAE) combined technique were used to process the mirror. Read More

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http://dx.doi.org/10.3390/ma12071077DOI Listing

On-line prediction of ferrous ion concentration in goethite process based on self-adjusting structure RBF neural network.

Neural Netw 2019 Mar 29;116:1-10. Epub 2019 Mar 29.

School of Automation, Central South University, Changsha City, 410083, China.

Outlet ferrous ion concentration is an essential indicator to manipulate the goethite process in the zinc hydrometallurgy plant. However, it cannot be measured on-line, which leads to the delay of this feedback information. In this study, a self-adjusting structure radial basis function neural network (SAS-RBFNN) is developed to predict the outlet ferrous ion concentration on-line. Read More

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http://dx.doi.org/10.1016/j.neunet.2019.03.007DOI Listing

Copan WASPLab automation significantly reduces incubation times and allows earlier culture readings.

Clin Microbiol Infect 2019 Apr 12. Epub 2019 Apr 12.

Bacteriology Laboratory, Division of Laboratory Medicine, Department of Diagnostics, Geneva University Hospitals, 4 rue Gabrielle-Perret-Gentil, 1205 Geneva, Switzerland; Genomic Research Laboratory, Division of Infectious Diseases, Department of Medical Specialities, Faculty of Medicine, Geneva, Switzerland.

Objective: to evaluate whether laboratory automation (inoculation and automated incubation combined with timely-defined high-resolution digital imaging) may help reducing the time required to obtain reliable culture analysis results.

Methods: we compared the results obtained by the WASPLab automation against WASP-based automated inoculation coupled to conventional incubation and manual diagnostic on 1294 clinical samples (483 for the derivation set and 811 for the independent validation set) that included urine, genital tract and non-sterile site specimens, as well as ESwabs for screening of MRSA, MSSA, ESBL, and CPE. We used sequential routine specimens referred to the bacteriology laboratory at Geneva University Hospitals between October 2018 and March 2019. Read More

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http://dx.doi.org/10.1016/j.cmi.2019.04.001DOI Listing

Dynamic visual guidance with complex task improves intracortical source activities during motor imagery.

Neuroreport 2019 Apr 12. Epub 2019 Apr 12.

Departments of Precision Instrument.

Motor imagery (MI) based brain-computer interfaces could be used clinically to trigger neurological recovery and improve motor function for patients with neural injuries. However, the factors that impact on MI performance and rehabilitative effect of MI-based brain-computer interfaces have not been characterized. According to our previous study, complex imagery tasks with dynamic visual paradigm could induce stronger MI features and obtain significantly higher average classification accuracy than nondynamic guidance. Read More

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http://dx.doi.org/10.1097/WNR.0000000000001251DOI Listing

Synthesis of Electron-Deficient Heteroaromatic 1,3-Substituted Cyclobutyls via Zinc Insertion/Negishi Coupling Sequence under Batch and Automated Flow Conditions.

Org Lett 2018 Dec 10;20(24):8022-8025. Epub 2018 Dec 10.

Global Chemistry, UCB New Medicines , UCB Biopharma SPRL , Avenue de l'industrie , 1420 Braine l'Alleud , Belgium.

Synthesis of 1,3-substituted cyclobutyls enabled by zinc insertion into functionalized iodocyclobutyl derivatives followed by Negishi coupling with halo-heteroaromatics is reported. Two distinct sets of conditions were developed; the first involved a two-step batch protocol using activated Rieke zinc, and the second involved a multistep continuous flow process. Both methods showed complementarity and allowed for rapid access to these medicinally relevant motifs, the possibility of scaling up, and automation for library synthesis. Read More

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http://dx.doi.org/10.1021/acs.orglett.8b03588DOI Listing
December 2018

A Molecular Hero Suit for In Vitro and In Vivo DNA Nanostructures.

Small 2019 Apr 15:e1805386. Epub 2019 Apr 15.

Department of Chemistry and Chemical Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA.

Precise control of DNA base pairing has rapidly developed into a field full of diverse nanoscale structures and devices that are capable of automation, performing molecular analyses, mimicking enzymatic cascades, biosensing, and delivering drugs. This DNA-based platform has shown the potential of offering novel therapeutics and biomolecular analysis but will ultimately require clever modification to enrich or achieve the needed "properties" and make it whole. These modifications total what are categorized as the molecular hero suit of DNA nanotechnology. Read More

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https://onlinelibrary.wiley.com/doi/abs/10.1002/smll.2018053
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http://dx.doi.org/10.1002/smll.201805386DOI Listing
April 2019
1 Read

Comparing the Relative Strengths of EEG and Low-Cost Physiological Devices in Modeling Attention Allocation in Semiautonomous Vehicles.

Front Hum Neurosci 2019 29;13:109. Epub 2019 Mar 29.

Department of Psychology, George Mason University, Fairfax, VA, United States.

As semiautonomous driving systems are becoming prevalent in late model vehicles, it is important to understand how such systems affect driver attention. This study investigated whether measures from low-cost devices monitoring peripheral physiological state were comparable to standard EEG in predicting lapses in attention to system failures. Twenty-five participants were equipped with a low-fidelity eye-tracker and heart rate monitor and with a high-fidelity NuAmps 32-channel quick-gel EEG system and asked to detect the presence of potential system failure while engaged in a fully autonomous lane changing driving task. Read More

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http://dx.doi.org/10.3389/fnhum.2019.00109DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6449700PMC

Integrated H filtering bumpless transfer control for switched linear systems.

ISA Trans 2019 Apr 1. Epub 2019 Apr 1.

School of Engineering, Dogus University, Istanbul, 34722, Turkey. Electronic address:

The integrated H filtering bumpless transfer control problem for switched linear systems is studied in this paper. The target is to attain the H filtering property of the switched linear systems via switchings, while reducing the control bumps induced by switchings. First, a novel description of the bumpless transfer performance is presented, quantifying the suppression level on the control bumps from both relative and absolute viewpoints. Read More

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http://dx.doi.org/10.1016/j.isatra.2019.03.025DOI Listing

Fusion of ULS Group Constrained High- and Low-Order Sparse Functional Connectivity Networks for MCI Classification.

Neuroinformatics 2019 Apr 13. Epub 2019 Apr 13.

Department of Radiology and BRIC, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.

Functional connectivity networks, derived from resting-state fMRI data, have been found as effective biomarkers for identifying mild cognitive impairment (MCI) from healthy elderly. However, the traditional functional connectivity network is essentially a low-order network with the assumption that the brain activity is static over the entire scanning period, ignoring temporal variations among the correlations derived from brain region pairs. To overcome this limitation, we proposed a new type of sparse functional connectivity network to precisely describe the relationship of temporal correlations among brain regions. Read More

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http://dx.doi.org/10.1007/s12021-019-09418-xDOI Listing

Ski-Everest (8848 m) Expedition: Digit Skin Temperature Responses to Cold Immersion May Reflect Susceptibility to Cold Injury.

Wilderness Environ Med 2019 Apr 9. Epub 2019 Apr 9.

Department of Automation, Biocybernetics and Robotics, Jožef Stefan Institute, Ljubljana, Slovenia; Department of Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, Canada.

Introduction: We tested the hypothesis that individual susceptibility to freezing cold injury might be reflected in an attenuated cold-induced vasodilatation (CIVD) response by comparing the CIVD responses of an elite alpinist with a history of freezing cold injury in the feet (case alpinist) with those of an age- and ability- matched noninjured alpinists control group (controls). According to this hypothesis, the vasomotor responses to a CIVD test of the case alpinist would represent a pathophysiological response when compared with the normal physiological response of a noninjured cohort.

Methods: The case alpinist and the controls in the cohort group conducted a cold water immersion test comprising sequential immersion of a hand and foot for 5min in 35°C water, followed by a 30-min immersion in 8°C water and a 10-min recovery period in room air. Read More

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http://dx.doi.org/10.1016/j.wem.2019.01.002DOI Listing

Univariate and Multivariate Analysis of Phosphorus Element in Fertilizers Using Laser-Induced Breakdown Spectroscopy.

Sensors (Basel) 2019 Apr 11;19(7). Epub 2019 Apr 11.

Institute of Atomic and Molecular Physics, Anhui Normal University, Wuhu 241000, China.

Rapid detection of phosphorus (P) element is beneficial to the control of compound fertilizer production process and is of great significance in the fertilizer industry. The aim of this work was to compare the univariate and multivariate analysis of phosphorus element in compound fertilizers and obtain a reliable and accurate method for rapid detection of phosphorus element. A total of 47 fertilizer samples were collected from the production line; 36 samples were used as a calibration set, and 11 samples were used as a prediction set. Read More

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http://dx.doi.org/10.3390/s19071727DOI Listing

Asynchronous event-based sampling data for impulsive protocol on consensus of non-linear multi-agent systems.

Neural Netw 2019 Mar 27;115:90-99. Epub 2019 Mar 27.

School of Automation, Huazhong University of Science and Technology, and Key Laboratory of Image Processing and Intelligent Control of Education Ministry of China, Wuhan 430074, China. Electronic address:

In this paper, we discuss the consensus problem of non-linear multi-agent systems where an impulsive protocol with event-based asynchronously sampled data is adopted. Systems that communicate by data asynchronously sampled in limited time intervals are constructed. By separating time instants at which the sampling and communication occur into different ones, resources for such activations that every agent must execute can be reallocated to reduce the system load at communication instants. Read More

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http://dx.doi.org/10.1016/j.neunet.2019.03.009DOI Listing

A sample processing method for immunoassay of whole blood tacrolimus.

Anal Biochem 2019 Apr 10;576:13-19. Epub 2019 Apr 10.

Shanghai Genext Medical Technology Co., Ltd, Shanghai, 200433, China.

Current sample processing (SP) methods for tacrolimus (FK506) immunoassays are mainly based on extraction of drug by organic solvent and divalent metal ions. Although these methods are effective for drug extraction and interference elimination, they suffer from drawbacks including inconvenience for operation, difficulties for automation and potential measurement bias. To overcome these limitations, this study describes a new SP reagent for blood cell lysis and protein denaturation. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00032697193017
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http://dx.doi.org/10.1016/j.ab.2019.04.006DOI Listing
April 2019
2 Reads

[Advances in microfluidic chip-based extracellular vesicle separation].

Se Pu 2019 Apr;37(4):343-347

Beijing Institute of Technology, Beijing 100081, China.

Extracellular vesicles (EVs) are hemispherical vesicles that have a lipid bilayer. Studies have shown that EVs have important biological functions. The amount, types, and compositional changes of proteins, lipids and ribonucleic acids are closely related to diseases. Read More

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http://dx.doi.org/10.3724/SP.J.1123.2018.11045DOI Listing
April 2019
1 Read

Multiparametric MRI-based radiomics analysis for prediction of breast cancers insensitive to neoadjuvant chemotherapy.

Clin Transl Oncol 2019 Apr 11. Epub 2019 Apr 11.

Department of Breast Cancer, Cancer Center, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, Guangzhou, 510080, China.

Purpose: To evaluate the value of multiparametric magnetic resonance imaging (MRI) in pretreatment prediction of breast cancers insensitive to neoadjuvant chemotherapy (NAC).

Methods: A total of 125 breast cancer patients (63 in the primary cohort and 62 in the validation cohort) who underwent MRI before receiving NAC were enrolled. All patients received surgical resection, and Miller-Payne grading system was applied to assess the response to NAC. Read More

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http://dx.doi.org/10.1007/s12094-019-02109-8DOI Listing

Prognostic Value of Deep Learning PET/CT-based Radiomics: Potential Role for Future Individual Induction Chemotherapy in Advanced Nasopharyngeal Carcinoma.

Clin Cancer Res 2019 Apr 11. Epub 2019 Apr 11.

Department of Radiation Oncology, Sun Yat-sen University Cancer Center

Purpose: We aimed to evaluate the value of deep learning on PET/CT-based radiomics for individual induction chemotherapy (IC) in advanced nasopharyngeal carcinoma (NPC).

Experimental Design: We constructed radiomics signatures and nomogram for predicting disease-free survival (DFS) based on the extracted features from PET and CT images in training set (n=470), and then validated it on a test set (n=237). Harrell's concordance indices (C-index) and time-independent receiver operating characteristic (ROC) analysis were applied to evaluate the discriminatory ability of radiomics nomogram, and compare radiomics signatures with plasma Epstein-Barr virus (EBV) DNA. Read More

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http://dx.doi.org/10.1158/1078-0432.CCR-18-3065DOI Listing

Fault estimation and active fault-tolerant control for discrete-time systems in finite-frequency domain.

ISA Trans 2019 Mar 25. Epub 2019 Mar 25.

School of Automation, Key Laboratory of Intelligent Control and Decision of Complex Systems, Beijing Institute of Technology, Beijing 100081, China. Electronic address:

The active fault-tolerant control (FTC) problem for discrete-time systems in finite-frequency domain is addressed based on faults' estimation. By the descriptor system approach, the observers are designed such that the stability and H performance index of dynamic error systems are analyzed in finite frequency domain. The estimation of faults is obtained by the designed observers. Read More

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http://dx.doi.org/10.1016/j.isatra.2019.02.014DOI Listing

High Sensitivity Refractometer Based on a Tapered-Single Mode-No Core-Single Mode Fiber Structure.

Sensors (Basel) 2019 Apr 10;19(7). Epub 2019 Apr 10.

School of Electronic Engineering and Automation, Guilin University of Electronic Technology, Guangxi Zhuangzuzizhiqu, China.

We have proposed a novel tapered-single mode-no core-single mode (TSNS) fiber refractometer based on multimode interference. The TSNS structure exhibits a high contrast ratio (>15 dB) and a uniform interference fringe. The influence of different lengths and diameters of the TSNS on the refractive index unit (RIU) sensitivity was investigated. Read More

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http://dx.doi.org/10.3390/s19071722DOI Listing

Biomimetic Mineralization of Magnetic Iron Oxide Nanoparticles Mediated by Bi-Functional Copolypeptides.

Molecules 2019 Apr 10;24(7). Epub 2019 Apr 10.

College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China.

Magnetite (Fe₃O₄) nanoparticles are widely used in multiple biomedical applications due to their magnetic properties depending on the size, shape and organization of the crystals. However, the crystal growth and morphology of Fe₃O₄ nanoparticles remain difficult to control without using organic solvent or a high temperature. Inspired by the natural biomineralization process, a 14-mer bi-functional copolypeptide, leveraging the affinity of binding Fe₃O₄ together with targeting ovarian cancer cell A2780, was used as a template in the biomimetic mineralization of magnetite. Read More

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http://dx.doi.org/10.3390/molecules24071401DOI Listing

Effect of Heat Treatment on the Microstructure and Properties of a Ti₃Al Linear Friction Welding Joint.

Materials (Basel) 2019 Apr 10;12(7). Epub 2019 Apr 10.

School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, China.

Heat treatment at different temperatures was carried out on a Ti₃Al linear friction welding joint. The characteristics and evolution of the microstructure in the weld zone (WZ) and the thermo-mechanically affected zone (TMAZ) of the Ti₃Al LFW joint were analyzed. Combined with the heat treatment after welding, the effect of the heat treatment temperature on the joint was discussed. Read More

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https://www.mdpi.com/1996-1944/12/7/1159
Publisher Site
http://dx.doi.org/10.3390/ma12071159DOI Listing
April 2019
3 Reads

Exponential synchronization of time-varying delayed complex-valued neural networks under hybrid impulsive controllers.

Neural Netw 2019 Mar 1;114:157-163. Epub 2019 Mar 1.

Potsdam Institute for Climate Impact Research, Potsdam 14415, Germany; Saratov State University, Saratov, Russia.

This paper focuses on exponential synchronization for master-slave time-varying delayed complex-valued neural networks (CVNNs) under hybrid impulsive controllers. Hybrid impulsive controllers is the extension of impulsive controllers, which can simultaneously permit synchronizing as well as desynchronizing impulses in one impulsive sequence, i.e. Read More

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http://dx.doi.org/10.1016/j.neunet.2019.02.006DOI Listing

Quanfima: An open source Python package for automated fiber analysis of biomaterials.

PLoS One 2019 11;14(4):e0215137. Epub 2019 Apr 11.

Institute for Automation and Applied Computer Science, Karlsruhe Institute of Technology, Karlsruhe, Germany.

Hybrid 3D scaffolds composed of different biomaterials with fibrous structure or enriched with different inclusions (i.e., nano- and microparticles) have already demonstrated their positive effect on cell integration and regeneration. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0215137PLOS
April 2019
2 Reads

A radiomics nomogram may improve the prediction of IDH genotype for astrocytoma before surgery.

Eur Radiol 2019 Apr 10. Epub 2019 Apr 10.

Department of Radiology, The first hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi Province, China.

Objectives: To develop and validate a radiomics nomogram to preoperative prediction of isocitrate dehydrogenase (IDH) genotype for astrocytomas, which might contribute to the pretreatment decision-making and prognosis evaluating.

Methods: One hundred five astrocytomas (Grades II-IV) with contrast-enhanced T1-weighted imaging (CE-T1WI), T2 fluid-attenuated inversion recovery (T2FLAIR), and apparent diffusion coefficient (ADC) map were enrolled in this study (training cohort: n = 74; validation cohort: n = 31). IDH1/2 genotypes were determined using Sanger sequencing. Read More

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http://dx.doi.org/10.1007/s00330-019-06056-4DOI Listing

Radiomics and Machine Learning for Radiotherapy in Head and Neck Cancers.

Front Oncol 2019 27;9:174. Epub 2019 Mar 27.

Radiation Oncology Department, Georges Pompidou European Hospital, Assistance Publique-Hôpitaux de Paris, Paris Descartes University, Paris Sorbonne Cité, Paris, France.

An increasing number of parameters can be considered when making decisions in oncology. Tumor characteristics can also be extracted from imaging through the use of radiomics and add to this wealth of clinical data. Machine learning can encompass these parameters and thus enhance clinical decision as well as radiotherapy workflow. Read More

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http://dx.doi.org/10.3389/fonc.2019.00174DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6445892PMC
March 2019
1 Read

Adolescents' Developing Sensitivity to Orthographic and Semantic Cues During Visual Search for Words.

Front Psychol 2019 26;10:642. Epub 2019 Mar 26.

Centre de Recherches sur la Cognition et l'Apprentissage, CNRS UMR 7295, Université de Poitiers, Université François Rabelais de Tours, Maison des Sciences de l'Homme et de la Société, Poitiers, France.

Two eye-tracking experiments were conducted to assess the influence of words either looking like the target word (orthographic distractors) or semantically related to the target word (semantic distractors) on visual search for words within lists by adolescents of 11, 13, and 15 years of age. In Experiment 1 (literal search task), participants saw the target word before the search (e.g. Read More

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http://dx.doi.org/10.3389/fpsyg.2019.00642DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6443905PMC

Lung cancer deficient in the tumor suppressor GATA4 is sensitive to TGFBR1 inhibition.

Nat Commun 2019 04 10;10(1):1665. Epub 2019 Apr 10.

Key Laboratory of Functional Protein Research of Guangdong Higher Education, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, 510632, Guangzhou, China.

Lung cancer is the leading cause of cancer-related deaths worldwide. Tumor suppressor genes remain to be systemically identified for lung cancer. Through the genome-wide screening of tumor-suppressive transcription factors, we demonstrate here that GATA4 functions as an essential tumor suppressor in lung cancer in vitro and in vivo. Read More

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http://www.nature.com/articles/s41467-019-09295-7
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http://dx.doi.org/10.1038/s41467-019-09295-7DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6458308PMC
April 2019
5 Reads

Intelligent Positioning for a Commercial Mobile Platform in Seamless Indoor/Outdoor Scenes based on Multi-sensor Fusion.

Sensors (Basel) 2019 Apr 9;19(7). Epub 2019 Apr 9.

Jiangsu Engineering Lab for IOT Intelligent Robots, Nanjing 210023, China.

Many traffic occasions such as tunnels, subway stations and underground parking require accurate and continuous positioning. Navigation and timing services offered by the Global Navigation Satellite System (GNSS) is the most popular outdoor positioning method, but its signals are vulnerable to interference, leading to a degraded performance or even unavailability. The combination of magnetometer and Inertial Measurement Unit (IMU) is one of the commonly used indoor positioning methods. Read More

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http://dx.doi.org/10.3390/s19071696DOI Listing

The influence of simulated global ocean acidification on the toxic effects of carbon nanoparticles on polychaetes.

Sci Total Environ 2019 May 10;666:1178-1187. Epub 2019 Feb 10.

Department of Biology & Center for Environmental and Marine Studies (CESAM), University of Aveiro 3810-193, Aveiro, Portugal. Electronic address:

Ocean acidification events are recognized as important drivers of change in biological systems. Particularly, the impacts of acidification are more severe in estuarine systems than in surface ocean due to their shallowness, low buffering capacity, low salinity and high organic matter from land drainage. Moreover, because they are transitional areas, estuaries can be seriously impacted by a vast number of anthropogenic activities and in the last decades, carbon nanomaterials (CNMs) are considered as emerging contaminants in these ecosystems. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00489697193059
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http://dx.doi.org/10.1016/j.scitotenv.2019.02.109DOI Listing
May 2019
3 Reads

PatcherBot: a single-cell electrophysiology robot for adherent cells and brain slices.

J Neural Eng 2019 Apr 10. Epub 2019 Apr 10.

Georgia Institute of Technology, Atlanta, UNITED STATES.

Objective: Intracellular patch-clamp electrophysiology, one of the most ubiquitous, high-fidelity techniques in biophysics, remains laborious and low-throughput. While previous efforts have succeeded at automating some steps of the technique, here we demonstrate a robotic "PatcherBot" system that can perform many patch-clamp recordings sequentially, fully unattended.

Approach: comprehensive automation is accomplished by outfitting the robot with machine vision, and cleaning pipettes instead of manually exchanging them. Read More

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http://iopscience.iop.org/article/10.1088/1741-2552/ab1834
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http://dx.doi.org/10.1088/1741-2552/ab1834DOI Listing
April 2019
3 Reads

Integrated Fluidic Circuits for Single-Cell Omics and Multi-omics Applications.

Adv Exp Med Biol 2019 ;1129:19-26

Fluidigm Corporation, South San Francisco, CA, USA.

Single-cell genomics plays a crucial role in several aspects of biology, from developmental biology to mapping every cell in the human body through the Cell Atlas initiative. To meet these various applications, single-cell methods are rapidly evolving to increase throughput; improve sensitivity, quantification accuracy, and usability; and reduce nucleic-acid amplification bias and cost. In addition to improvement in single-cell methods, there is a huge interest in analyzing multiple analytes such as genome, epigenome, transcriptome, and protein from the same single cell. Read More

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http://link.springer.com/10.1007/978-981-13-6037-4_2
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http://dx.doi.org/10.1007/978-981-13-6037-4_2DOI Listing
January 2019
5 Reads

MRCNN: a deep learning model for regression of genome-wide DNA methylation.

BMC Genomics 2019 Apr 4;20(Suppl 2):192. Epub 2019 Apr 4.

School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan, China.

Background: Determination of genome-wide DNA methylation is significant for both basic research and drug development. As a key epigenetic modification, this biochemical process can modulate gene expression to influence the cell differentiation which can possibly lead to cancer. Due to the involuted biochemical mechanism of DNA methylation, obtaining a precise prediction is a considerably tough challenge. Read More

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http://dx.doi.org/10.1186/s12864-019-5488-5DOI Listing

Estimating the total genome length of a metagenomic sample using k-mers.

BMC Genomics 2019 Apr 4;20(Suppl 2):183. Epub 2019 Apr 4.

MOE Key Laboratory of Bioinformatics Division and Center for Synthetic & System Biology, BNRIST, Beijing, 100084, China.

Background: Metagenomic sequencing is a powerful technology for studying the mixture of microbes or the microbiomes on human and in the environment. One basic task of analyzing metagenomic data is to identify the component genomes in the community. This task is challenging due to the complexity of microbiome composition, limited availability of known reference genomes, and usually insufficient sequencing coverage. Read More

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http://dx.doi.org/10.1186/s12864-019-5467-xDOI Listing

Fused Deposition Modeling of ABS-Barium Titanate Composites: A Simple Route towards Tailored Dielectric Devices.

Polymers (Basel) 2018 Jun 14;10(6). Epub 2018 Jun 14.

Laboratory for Materials Processing, University of Freiburg, 79110 Freiburg, Germany.

A process for the development, characterization and correlation of composite materials for 3D printing is presented, alongside the processing of a polymer-ceramic functional composite using fused deposition modeling (FDM). The composite was developed using acrylonitrile butadiene styrene (ABS) as the matrix material filled with barium titanate (BT) micro-powder up to 35 vol % (74.2 wt %). Read More

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http://dx.doi.org/10.3390/polym10060666DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6404148PMC

Aligned P(VDF-TrFE) Nanofibers for Enhanced Piezoelectric Directional Strain Sensing.

Polymers (Basel) 2018 Mar 25;10(4). Epub 2018 Mar 25.

School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, China.

Piezoelectric poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) nanofibers fabricated by electrospinning have drawn increasing levels of attention in the fields of flexible sensors and nanogenerators. However, the directional dependence of piezoelectricity of electrospun nanofibers remains elusive. In this study, the piezoelectric performances of individual nanofibers are characterized by piezoresponse force microscopy (PFM), while the effects of annealing on β-phase crystallinities are investigated by X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy. Read More

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http://dx.doi.org/10.3390/polym10040364DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6414850PMC