1,725,021 research outputs found
Junliang-Wang/idtpy: First release
No full textFeatures
Generation of IDT designs:
Regular IDT: standard and uniform design.
Exponential Chirp IDT: non-uniform design. See Junliang Wang et al. (2022)
Linear Chirp IDT: non-uniform design. See Junliang Wang et al. (2022)
Split52 IDT: generation of higher harmonics. See Florian Schulein et al. Nature Nanotechnology (2015)
Dart IDT: unidirectional SAW emission. See Etienne Dumur et al. Applied Physics Letters (2019)
Modelling tools for Regular IDT and Chirp IDT
Delta function model
Impulse response mode
Robert Ford Campany, Making Transcendents : Ascetics and Social Memory in Early Medieval China, 2009
No full textPan Junliang. Robert Ford Campany, Making Transcendents : Ascetics and Social Memory in Early Medieval China, 2009. In: Bulletin de l'Ecole française d'Extrême-Orient. Tome 99, 2012. pp. 435-438
Robert Ford Campany, Signs from the Unseen Realm : Buddhist Miracle Tales from Early Modern China, 2012
No full textJunliang Pan. Robert Ford Campany, Signs from the Unseen Realm : Buddhist Miracle Tales from Early Modern China, 2012. In: Bulletin de l'Ecole française d'Extrême-Orient. Tome 100, 2014. pp. 402-404
Other title: ODOT Research Executive Summary Report : State Job Number 135027
No full textResearch Agency: The University of Akron.; Report Publication Date: August 2015.; FHWA Report Number: FHWA/OH-2015/22.; Researchers: Junliang Tao, Robert Liang
Flood/Drought Monitoring and Assessment for Food Security
No full textGlobal warming is intensifying the global water cycle, leading to more frequent and extreme floods and droughts, which have widespread and negative impacts on agriculture. Rapid and effective monitoring of floods and droughts is crucial for addressing the effects of these disasters on agriculture. However, large-scale, high-resolution flood and drought mapping faces significant challenges due to the sparse distribution of hydrological stations and the susceptibility of optical satellites to cloud interference. This thesis proposes leveraging multi-source satellite remote sensing data to overcome the limitations of single-source satellites in terms of temporal, spatial, spectral, and radiometric resolution. Using the GEE platform, rapid flood and drought mapping can be achieved, and by integrating land cover maps and crop maps, the impacts of floods and droughts on agriculture can be assessed.
This thesis presents the development of China's first high-resolution flood maps and successfully applies flood monitoring algorithms, initially designed for China, to Greece and Libya. These algorithms have been integrated into Google Earth Engine, making them automatic, rapid, and robust. The high-resolution flood maps are valuable for assessing the impact of floods on agriculture and can support the siting of hydraulic engineering infrastructure. The thesis also introduces a comprehensive drought monitoring system. By utilizing rainfall data, soil moisture data, vegetation indices derived from optical imagery, and terrestrial water storage data from gravity satellites, the thesis successfully monitors meteorological, agricultural, and hydrological droughts through multi-source satellite data. Additionally, the thesis employs Cross Wavelet Transform and Gaussian Copula methods to analyze drought propagation processes and assess the probability of compound droughts. This comprehensive drought monitoring method has been successfully applied in Costa Rica, El Salvador, and Italy.
The flood and drought monitoring methods developed in this thesis can be applied globally, offering significant potential for mitigating the negative impacts of droughts and floods
Long-term agricultural drought monitoring in the Central America Dry Corridor using Vegetation Health Index
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Dai you huan jiao huan zuo yong de zi xuan 1/2 ti zi mo xing zhong de liang zi jiu chan
No full textSong Junliang = 帶有環交換作用的自旋1/2梯子模型中的量子纠缠 / 宋均亮.Thesis (M.Phil.)--Chinese University of Hong Kong, 2006.Includes bibliographical references (leaves 60-67).Text in English; abstracts in English and Chinese.Song Junliang = Dai you huan jiao huan zuo yong de zi xuan 1/2 ti zi mo xing zhong de liang zi jiu chan / Song Junliang.Chapter 1 --- Introduction --- p.1Chapter 1.1 --- What is Entanglement --- p.1Chapter 1.2 --- Quantum Information and Entanglement --- p.4Chapter 1.3 --- Entanglement in Condensed Matter Physics --- p.6Chapter 1.4 --- The S = 1/2 Spin Ladder with Ring Exchange --- p.9Chapter 1.5 --- Arrangement of the Thesis Writing --- p.11Chapter 2 --- Measures of Entanglement --- p.13Chapter 2.1 --- Axiomatic Approach --- p.14Chapter 2.2 --- Entropy of entanglement in pure states --- p.16Chapter 2.3 --- Concurrence --- p.17Chapter 2.4 --- Negativity --- p.19Chapter 2.5 --- Other measurements --- p.20Chapter 3 --- Entanglement in S=l/2 Ladder with Ring Exchange at T=0 --- p.22Chapter 3.1 --- Model Hamiltonian and Phase Diagram --- p.22Chapter 3.2 --- Ground-state concurrence --- p.24Chapter 3.3 --- Two-site entanglement of the rung and the SU(4) point --- p.29Chapter 3.4 --- Scaling behavior of the block-block entanglement --- p.34Chapter 3.5 --- Entanglement of the Ferromagnetic state --- p.37Chapter 3.6 --- Other Measurements --- p.42Chapter 3.7 --- Summary and Discussion --- p.43Chapter 4 --- Thermal Entanglement --- p.45Chapter 4.1 --- A Four-Spin Plaquette --- p.46Chapter 4.2 --- Thermal concurrence --- p.50Chapter 4.3 --- Magnetic susceptibility as Entanglement Witness --- p.52Chapter 4.4 --- Numerical results in a 6 x 2 ladder --- p.54Chapter 4.5 --- Summary and Discussion --- p.55Chapter 5 --- Conclusion and future work --- p.58Bibliography --- p.6
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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