A5063317580- Ionosphere and magnetosphere dynamics
- Solar and Space Plasma Dynamics
- Astro and Planetary Science
- ZnO doping and properties
- Advanced Sensor and Energy Harvesting Materials
- Language, Metaphor, and Cognition
- Discourse Analysis in Language Studies
- Copper-based nanomaterials and applications
- Prenatal Screening and Diagnostics
- Education Practices and Challenges
- Gas Sensing Nanomaterials and Sensors
- Semiconductor Quantum Structures and Devices
- Ga2O3 and related materials
- Dielectric materials and actuators
- Text Readability and Simplification
- Polymer Nanocomposite Synthesis and Irradiation
- Genetic Syndromes and Imprinting
- Surfactants and Colloidal Systems
- Renal and related cancers
- Second Language Acquisition and Learning
- Graphene research and applications
- Translation Studies and Practices
- Parkinson's Disease Mechanisms and Treatments
- Membrane Separation and Gas Transport
- GaN-based semiconductor devices and materials
Peking University Third Hospital
2024
Peking University
2005-2024
Beijing Obstetrics and Gynecology Hospital
2024
Ministry of Education of the People's Republic of China
2024
Shandong University
2020-2022
Yunnan Observatories
2019-2021
Chinese Academy of Sciences
2005-2021
Hunan University of Science and Technology
2020
University of Chinese Academy of Sciences
2018-2020
Hong Kong Polytechnic University
2017-2020
Abstract Ubiquitous solar jets or jet-like activities are generally regarded as an important source of energy and mass input to the upper atmosphere wind. However, their triggering driving mechanisms not completely understood. By taking advantage stereoscopic observations with high temporal spatial resolutions taken by Solar Dynamic Observatory ( SDO ) Terrestrial Relations STEREO ), we report intriguing two-sided-loop jet that occurred on 2013 June 02, was dynamically associated eruption a...
Ideal Al-doped ZnO (AZO) thin films should have high carrier mobility and concentration, as well thermal chemical stability. To achieve these properties, be heavily doped with Al perfectly crystallized. Through analyzing the possible valence state of elements local lattice structures AZO during gas-phase deposition process, we find that current method may encounter an intrinsic obstacle heavy doping Al, stability, (perfect crystallinity) cannot achieved simultaneously. However, based on...
Abstract Preimplantation genetic testing (PGT) can minimize the risk of birth defects. However, accuracy and applicability routine PGT is confounded by uneven genome coverage high allele drop‐out rate from existing single‐cell whole amplification methods. Here, a method to diagnose mutations concurrently evaluate embryo competence leveraging abundant mRNA transcript copies present in trophectoderm cells developed. The feasibility confirmed with 19 donated blastocysts. Next, applied 82...
Helicity-dependent photocurrent (HDPC) has been observed in epitaxial thin films of the three-dimensional topological insulator ${\mathrm{Sb}}_{2}{\mathrm{Te}}_{3}$ with a thickness 7, 20, and 30 quintuple layers (QLs). By analyzing incident angle dependence HDPC, we successfully extract induced by circular photon drag effect (CPDE) even parity from HDPC. It is found that photogalvanic (CPGE) larger than odd CPDE. The CPGEs top bottom surface states are distinguished at room temperature. As...
The authors report the electrical transport properties of an individual degenerately In-doped ZnO (ZnO:In) nanobelts. room temperature resistivity and electron concentration ZnO:In nanobelts are found to be 8.9×10−4 Ω cm 1.17×1020 cm−3, respectively. dependent agrees well with Bloch–Grüneisen theory due electron-acoustic phonon scattering mechanism. A high failure-current density 7.4×106 A/cm2 is measured because single-crystalline metallic structure.
This paper reported the phase behavior and aggregate structure of tetrabutylammonium perfluorooctanoate (TBPFO), determined by differential scanning calorimeter, electrical conductivity, static/dynamic light scattering, rheology methods. We found that above a certain concentration TBPFO solution showed anomalous temperature-dependent transitions. Such an ionic surfactant exhibits two cloud points. When temperature was increased, turned from homogeneous-phase to liquid−liquid two-phase...
The relationship between symbolic expression and affect tends to be investigated from the perspective of recipients in contexts like media, politics, advertising. A more producer-centric context is picture-based counseling (PBC) where clients are prompted by counselors interpret pictures creatively as part treatment process. Nevertheless, affective discursive outcomes these interpretations remain poorly understood. This paper reports a combined experimental discourse analytic study which...
By introducing Mg-doped InGaN/AlGaN strained-layer superlattice (SL) as p-type layer, the performance of Ohmic contact is improved compared with AlGaN/GaN and InGaN/GaN SLs. SL yields higher hole concentration due to larger oscillation valence band edge smaller activation energy. The calculated average in shows a twofold increase that at same level. measured sheet density for ten periods high 4.4×1014 cm−2. Finally, Ni/Au contacts on specific resistance 7.3×10−5 Ω cm2 are realized.
Although fast kink oscillations of coronal loops have been extensively studied for decades, details about their excitation, evolution, and damping remain elusive. Here, we present, the first time, a longitudinally asymmetrical oscillation loop that is excited by GOES C-class flare located diagonally below system. In this case, damping-like phase growing-like are successively observed after in different segments far from close to site, respectively. The investigation provides us with new...
In this work, we explored the feasibility and accuracy of detecting motor impairment in Parkinson's disease (PD) via implicitly sensing analyzing users' everyday interactions with their smartphones. Through a 42 subjects study, our approach achieved an overall 88.1% (90.0%/86.4% sensitivity/specificity) discriminating PD from age-matched healthy controls. The performance was comparable to alternating-finger-tapping (AFT) test, well-established test clinical settings. We believe that implicit...
A comprehensive analysis of plasma and composition characteristics inside magnetic clouds (MCs) observed by the Advanced Composition Explorer (ACE) spacecraft from 1998 February to 2011 August is presented. The results show that MCs have specific interior structures, different speeds differences in structure. Compared with slow MCs, fast enhanced mean charge states iron, oxygen, silicon, magnesium, $\mathrm{O^{7+}/O^{6+}}$, $\mathrm{C^{6+}/C^{5+}}$, $\mathrm{C^{6+}/C^{4+}}$...
Abstract The origin of small-scale interplanetary magnetic flux-ropes (SIMFRs) and the relationship between SIMFRs clouds (MCs) are still controversial. In this study, two populations SMIFRs were collected, i.e., originating from Sun (SIMFR-SUN) those solar wind (SIMFR-SW). We defined SIMFR-SUN (SIMFR-SW) as that include (exclude) counter-streaming suprathermal electrons stay away (close to) heliospheric current sheet. After fitting with force-free flux-rope model, 52 57 SIMFR-SW events...
Transparent conductive oxides are key electrode materials for thin film solar cells. Aluminum doped zinc oxide has become one of the most promising transparent (TCO) because its excellent optical and electrical properties. In this work, aluminum films were prepared using RF magnetron sputtering a 4 at% ceramic target. The thermal stability was studied various physical structural characterization methods. It observed that conductivity deteriorated rapidly unevenly when it heated up to 350 °C....
ABSTRACT Using vector magnetic field data from the Helioseismic and Magnetic Imager instrument onboard Solar Dynamics Observatory, we study signs of helicity (magnetic twist αav, z-component current Hc) tilt angle 85 sample active regions (ARs) that appeared on central solar disc (within ±45° centre) between December 2018 November 2020. This time range spans exchange period Cycle 24 25. The main findings are as follows: (1) As a whole, 62 per cent ARs follow hemispherical sign rule, our...
The evolution of growth rate and eigenfunction kink instability in a cylindrical plasma column with different pressure is studied by semi-analytical method. method can transform magnetohydrodynamics (MHD) equations into second-order ordinary differential equation. Growth be obtained solving the 2-D radial calculated fixed rate. significant change indicates inhomogeneous P0 destructive for instability. advantage our that it divide problem two parts then solve them separately.
Abstract Pre-implantation Genetic Testing for Aneuploidy (PGT-A) is widely used in half of vitro fertilization (IVF) cycles, leading to the unwarranted disposal embryos with pregnancy potential. Due limited understanding genetics human embryo, current PGT-A built on biologically uncertain assumptions and unvalidated guidelines 1 . Here, we sequenced all single cells (1,072) from 20 blastocysts analyzed 13,897 post-implantation as well fetal organs. Unexpectedly, contained mitotic aneuploid...
A photoinduced low frequency oscillation (LFO) is observed in GaAs MESFETs under microwave excitation at room temperature. The phenomenon a self-sustained externally driven output power amplitude modulation and occurs within range of light intensity, level, quiescent bias state. depends on the intensity power, varying from 0.1 to 100 Hz. This found be strong function device surface condition.