A5103201645- Neuroscience and Neural Engineering
- GaN-based semiconductor devices and materials
- Microstructure and Mechanical Properties of Steels
- Photoreceptor and optogenetics research
- Metal Alloys Wear and Properties
- Advanced Sensor and Energy Harvesting Materials
- Molecular Communication and Nanonetworks
- Advanced Algorithms and Applications
- Advanced Sensor and Control Systems
- Adaptive Control of Nonlinear Systems
- Metal and Thin Film Mechanics
- Magnetic Properties and Applications
- Asphalt Pavement Performance Evaluation
- Ga2O3 and related materials
- Infrastructure Maintenance and Monitoring
- Underwater Vehicles and Communication Systems
- Environmental remediation with nanomaterials
- Hydrogen embrittlement and corrosion behaviors in metals
- Conducting polymers and applications
- Smart Materials for Construction
- Carbon Nanotubes in Composites
- Adsorption and biosorption for pollutant removal
- Electrospun Nanofibers in Biomedical Applications
- Geotechnical Engineering and Underground Structures
- Gas Sensing Nanomaterials and Sensors
Beihang University
2020-2024
Yanshan University
2021-2024
Southeast University
2016-2022
Shenyang University of Technology
2022
Zhejiang Lab
2021-2022
Yuan Ze University
2020
China Telecom (China)
2019
China Telecom
2019
Tsinghua University
2017-2018
Weihai Science and Technology Bureau
2017
Significance Materials and devices that upconvert photons from low to high frequencies are of tremendous interest for broad applications in bio- chemical sensing, infrared imaging, display, photovoltaics. Here we develop self-powered, micrometer-scale optoelectronic upconversion infrared-to-visible photon upconversion. The realized microscale device exhibits a practical efficiency 1.5% under incoherent low-power illumination, with emission intensity linearly dependent on excitation. Other...
Abstract Physical and chemical technologies have been continuously progressing advances in neuroscience research. The development of research tools for closed-loop control monitoring neural activities behaving animals is highly desirable. In this paper, we introduce a wirelessly operated, miniaturized microprobe system optical interrogation neurochemical sensing the deep brain. Via epitaxial liftoff transfer printing, microscale light-emitting diodes (micro-LEDs) as light sources...
Abstract Optogenetic methods provide efficient cell-specific modulations, and the ability of simultaneous neural activation inhibition in same brain region freely moving animals is highly desirable. Here we report bidirectional neuronal activity manipulation accomplished by a wireless, dual-color optogenetic probe synergy with co-expression two spectrally distinct opsins (ChrimsonR stGtACR2) rodent model. The flexible comprises vertically assembled, thin-film microscale light-emitting diodes...
Inorganic semiconductor-based microscale light-emitting diodes (micro-LEDs) have been widely considered the key solution to next-generation, ubiquitous lighting and display systems, with their efficiency, brightness, contrast, stability, dynamic response superior liquid crystal or organic-based counterparts. However, reduction of micro-LED sizes leads deteriorated device performance increased difficulties in manufacturing. Here, we report a tandem scheme based on stacked red, green, blue...
Abstract Graphene‐based epidermal dry electrodes have generated wide interests in electrocardiography (ECG) monitoring to screen cardiovascular diseases time. Nevertheless, the poor stability, mechanical strength, and integration are significant obstacles hindering further product marketing of graphene health care. Herein, robust, reusable, patterned graphene‐based wearable fabricated based on laser writing technology supported by polydimethylsiloxane (PDMS) layers. After bending tests over...
Recently, polydimethylsiloxane (PDMS)-based porous materials have been regarded as ideal candidates in various applications. We created a PDMS composite sponge decorated with reduced graphene oxide (rGO)/carbon nanotube (CNT) fillers via polydopamine (PDA). Specifically, manufactured was prepared by sacrificial template approach and then PDA on network of sponges dopamine self-polymerization. tightly firmly attached to the skeleton, which makes superhydrophobic hydrophilic providing...
Abstract Materials and device strategies to form inorganic, thin‐film, microscale light‐emitting diodes (micro‐LEDs) are presented based on a simplified release method. High performance gallium nitride blue micro‐LEDs fabricated released from both patterned sapphire substrates (PSSs) conventional nonpatterned (CSSs). Micro‐LEDs transferred onto copper polyimide flexible their electrical optical performances maintained. Thermal properties of PSS CSS systematically explored different...
Overcoming the trade-off relationship between strength and ductility has always been a challenge. In this article, neatly arranged ultrafine bainite that is composed of multi-scale retained austenite was obtained by introducing weak chemical heterogeneity in low-alloy steel. The optimized microstructure makes transformation-induced plasticity (TRIP) behavior coordinating deformation each phase to be smoother. This results better comprehensive properties, with 28.5% 9% increases uniform...
Recording and interrogating brain activities using optical methods have become emerging technologies in neuroscience. Traditional tools for optogenetic stimulation the deep are mostly based on implantable fibers, imposing constraints animal movement. Recently developed microscale light-emitting diodes (micro-LEDs), which can be wirelessly operated, serve as injectable light sources that directly interact with neural systems. Here, we exploit a controlled, system studies behaving animals....
Ausforming at 900 °C with 30% reduction in V and N micro-alloyed steel could induce VN precipitation, which has low lattice misfit (1.8%) bainitic ferrite a particular crystal orientation. The incubation period of transformation was shortened by introducing VN. A further ausforming 300 different strains prior to isothermal carried out, provided more nucleation points distortion-energy storage for transformation. dramatically notably accelerated. There existed competition between accelerating...
Abstract Miniaturized, wearable, and implantable optoelectronic devices systems provide incomparable opportunities for applications in biomedical fields. Optical filters with wavelength selective reflective/transmissive responses that can be integrated onto these biointegrated platforms are critically important high performance operation. Here, quality, dielectric thin‐film optical on unconventional substrates via transfer printing reported. Designed formed flexible exhibit highly spectral...
Rapid heat treatment is an important method to improve the properties of steel. Moreover, study phase transformation process plays role in formulation rapid treatment. This paper investigates behavior and microstructure evolution ultrafine bainite at varying heating rates, reveals influence mechanism retained austenite on austenitizing. Results showed that decomposition was influenced by diffusion Si element. Therefore, temperature severely affected rate. Retained completely transformed into...
Formed activated carbon was prepared by extruding of a mixture fine blue-coke and organic additives subsequent carbonization steam activation. The conditions for preparation were optimized with orthogonal experiments taking temperature, activation time water vapor flow as influential factors, iodine number, compressive strength yield indexes. results show that the number is 1157.4 mg/g, 9.9 MPa 34.15%, when produced at optimum 450 °C 900 90 min 50 mL/h. Meanwhile, nitrogen adsorption...
This study aims to evaluate the economy of a steel bridge deck pavement scheme (SBDPS) using comprehensive life-cycle cost (LCC) analysis approach. The SBDPS are divided into “epoxy asphalt concrete system” (EA system) and “Gussasphalt (GA according difference in material lower layer SBDPS. A targeted LCC checklist, including manager user was proposed, Markov-based approach applied establish performance model with clear probability characteristics for Representative traffic conditions were...
The mobility of two-dimensional electron gas as influenced by the charged misfit dislocations located at interface semi-polar AlGaN/GaN heterostructure is quantitatively analyzed. results indicate that strength scattering due to in heterointerface comparable well-known associated with threading polar c-plane heterostructures.
High Efficiency Video Coding (HEVC) is a worldwide popular video coding standard due to its high efficiency. To make profits, forgers prefer transcode videos from previous standards such as H.264/AVC HEVC. deal with this issue, an efficient method proposed expose transcoded HEVC based on unit (CU) and prediction (PU) partition types. CU PU partitioning are two unique syntactic units of that can reflect video’s compression history. In paper, types I pictures P firstly extracted. Then, their...