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Search Results: 1 - 10 of 15126 matches for " Xiaoli Shen "
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Study on the Risk of Regional Energy Security Cooperation  [PDF]
Ying Shen, Xintong Yang, Xiaoli Guo
Energy and Power Engineering (EPE) , 2013, DOI: 10.4236/epe.2013.54B273
Abstract:

Energy security is an issue that many countries pay more attention to. Cooperation is a good way to solute it. According to the complex system theory, the regional energy cooperation means a state or process of balance system formed by the interaction and behavior coordination between agents. The features of the regional energy cooperation risk include: uncertainty, potential, fuzziness, diversity, relevance and particularity. And the regional energy cooperation risk can be divided into risk inside the system such as main body ability structure of the risk and main body decision-making risk, and the risk outside the system such as external environment factors and cooperation pattern factors.

Ecological Conservation, Cultural Preservation, and a Bridge between: the Journey of Shanshui Conservation Center in the Sanjiangyuan Region, Qinghai-Tibetan Plateau, China
Xiaoli Shen,Jiaxin Tan
Ecology and Society , 2012, DOI: 10.5751/es-05345-170438
Abstract: The Sanjiangyuan region is located on the Qinghai-Tibetan Plateau in western China and encompasses the headwaters of the Yangtze, Yellow and Mekong rivers. It is also home to 300,000 Tibetan pastoralists. The area is characterized by its significant ecological service, unique culture, and fragile ecosystems, and has undergone a rapid degradation over the past several decades. Traditional Tibetan culture offers alternative knowledge and perspectives that facilitate the environmental conservation throughout the region, but have yet to be recognized or adopted by the Chinese government. Beginning in 2007, the local environmental NGO, Shanshui Conservation Center, has initiated a journey to bridge Tibetan communities with the outside scientific community, mainstream society and policy-makers with the aim of advocating integrating traditional Tibetan practices in conservation actions in the Sanjiangyuan region. Through the conservation concession program initiated and facilitated by Shanshui Conservation Center in collaboration with Conservation International, the Sanjiangyuan nature reserve turned over the management of some reserve lands to local communities after a conservation agreement with clear management plans and monitoring indictors was made between the two parties. The trial and demonstration of the conservation concession program successfully led to the adoption of community-based conservation models in state level conservation policy in 2011. We demonstrate as a bridging organization, Shanshui Conservation Center plays the role of cultural translator to promote the understanding and appreciation of traditional Tibetan culture in conservation in western China.
Floating-zone growth and property characterizations of high-quality La2-xSrxCuO4 single crystals
Xiaoli Shen,Zhengcai Li,Caixia Shen,Wei Lu,Xiaoli Dong,Fang Zhou*,Zhongxian Zhao
Physics , 2009,
Abstract: We have grown underdoped (x = 0.11, 0.12) and optimally doped (x = 0.16) La2-xSrxCuO4 (LSCO) crystals by traveling-solvent floating-zone (TSFZ) technique. In order to obtain LSCO single crystals of high quality, we have made much effort to optimize the preparation procedures. For example, we have adopted sol-gel route to prepare highly fine and homogeneous LSCO precursor powder, and used quite slow growth rate. The sizable grown crystal ingots are typically about 6.6 mm in diameter and 100 mm in length, and no impurity phases were detected. The high quality of grown crystals has been verified by double-crystal x-ray rocking curves, with full-width-at-half-maximum (FWHM) being only 113 ~ 150 arcseconds (or 0.03 deg - 0.04 deg), which are the best data reported so far for LSCO crystals. The superconducting critical temperatures (TC's) of the cuprate crystals are 30 K for x = 0.11, 31 K for x = 0.12 and 38.5 K for x = 0.16 samples according to magnetic measurements.
Tibetan Sacred Sites: Understanding the Traditional Management System and Its Role in Modern Conservation
Xiaoli Shen,Zhi Lu,Shengzhi Li,Nyima Chen
Ecology and Society , 2012, DOI: 10.5751/es-04785-170213
Abstract: Sacred sites are based on indigenous culture and traditional practices that value land and lives, and are considered to be of significant contribution in biodiversity conservation. However, there is a lack of understanding about how these traditional systems function (i.e., the distribution and size of sacred sites, their management and current status), especially for those sites within the Tibetan region. From 2004 to 2007, we investigated 213 sacred mountains, a major form of Tibetan sacred site, in western China, and documented their traditional management system. We mapped 154 sacred mountains within a GIS and estimated their average size was 25.9 km2 (range 0.6–208.4 km2), with sacred mountains of greater religious significance covering greater areas. Monasteries had an essential role in protecting sacred mountains; 73.1% assigning specific personnel to manage their sacred mountains, and 63.9% patrolling their mountains. Official nature reserves had a remarkable spatial overlap with sacred mountains, but few reserves had established collaboration with local communities or monasteries on the land resource management. We conclude that Tibetan sacred mountains could have an important role in conservation, not only because they cover a considerable area, but also because of strong local participation in conservation of sacred mountains. We believe that Tibetan sacred sites are a landscape-level conservation attribute. To promote conservation in western China, Tibetan sacred sites need to be recognized and incorporated in the formal conservation network, and local communities should be empowered to participate in protecting and managing their sacred sites.
Relationship among Photopic Negative Response, Retinal Nerve Fiber Layer Thickness, and Visual Field between Normal and POAG Eyes
Xiaoli Shen,Lina Huang,Ning Fan,Jing He
ISRN Ophthalmology , 2013, DOI: 10.1155/2013/182021
Abstract:
Parametric Time-Frequency Analysis and Its Applications in Music Classification
Shen Ying,Li Xiaoli,Ma Ngok-Wah,Krishnan Sridhar
EURASIP Journal on Advances in Signal Processing , 2010,
Abstract: Analysis of nonstationary signals, such as music signals, is a challenging task. The purpose of this study is to explore an efficient and powerful technique to analyze and classify music signals in higher frequency range (44.1 kHz). The pursuit methods are good tools for this purpose, but they aimed at representing the signals rather than classifying them as in Y. Paragakin et al., 2009. Among the pursuit methods, matching pursuit (MP), an adaptive true nonstationary time-frequency signal analysis tool, is applied for music classification. First, MP decomposes the sample signals into time-frequency functions or atoms. Atom parameters are then analyzed and manipulated, and discriminant features are extracted from atom parameters. Besides the parameters obtained using MP, an additional feature, central energy, is also derived. Linear discriminant analysis and the leave-one-out method are used to evaluate the classification accuracy rate for different feature sets. The study is one of the very few works that analyze atoms statistically and extract discriminant features directly from the parameters. From our experiments, it is evident that the MP algorithm with the Gabor dictionary decomposes nonstationary signals, such as music signals, into atoms in which the parameters contain strong discriminant information sufficient for accurate and efficient signal classifications.
Parametric Time-Frequency Analysis and Its Applications in Music Classification
Ying Shen,Xiaoli Li,Ngok-Wah Ma,Sridhar Krishnan
EURASIP Journal on Advances in Signal Processing , 2010, DOI: 10.1155/2010/380349
Abstract:
Blood Cell Morphology, Some Hematological and Serum Biochemistry Values of Common Kestrel (Falco tinnunculus)
Xiaoli Shen,Zhiming Zhang,Bin Jia,Ya Tu
Journal of Sustainable Development , 2009, DOI: 10.5539/jsd.v1n2p123
Abstract: In this study, morphological characteristics of peripheral blood cell, and certain hematological and serum biochemistry values were determined in 16 clinical healthy adult common kestrels in order to establish normal reference values for this population. Seven different types of blood cells were determined, such as erythrocytes, thrombocytes, big lymphocytes, monocytes, heterophils, basophils, small lymphocytes. According to the results, hematology of red blood cell counts, white blood cell counts, hemoglobin, packed cell volume, mean corpuscular hemoglobin (MCH), mean cell volume (MCV), mean corpuscular hemoglobin concentration (MCHC) were 2.47±0.55×1012/L, 6.02±1.42×109/L, 124.6±16.74g/L, 39.94±3.84%, 523.01±119.49pg, 523.01±119.49fl, 314.29±48.80%. The results showed that serum biochemistry concentration of uric acid, total protein, albumin, alkaline phosphates were 2.22±0.68 nmol/L, 6.94±0.61g/L,4.91±0.44g/L, 10.17±2.93mg%. And, the different counts of leukocytes in the peripheral blood of clinical healthy common kestrel were determined as follows as 49.80±1.03% heterophils, 43.80±5.44% lymphocytes, 1.80±1.48% monocytes, 0.00±0.00% eosinophils, 3.60±1.24% basophils. These hematology and serum biochemistry values can be used as standard profiles for healthy adult common kestrel in captivity.
Relationship among Photopic Negative Response, Retinal Nerve Fiber Layer Thickness, and Visual Field between Normal and POAG Eyes
Xiaoli Shen,Lina Huang,Ning Fan,Jing He
ISRN Ophthalmology , 2013, DOI: 10.1155/2013/182021
Abstract: Purpose. To determine the relationship among photopic negative response (PhNR) of the electroretinogram (ERG), retinal nerve fiber layer (RNFL) thickness, and the visual field in normal and glaucomatous patients. Methods. Thirty-eight normal volunteers and one hundred twenty-four patients with Primary open-angle glaucoma (POAG) were enrolled in the study. The PhNRs were elicited by white stimuli on a white background and red stimuli on a blue background. The visual field parameters were measured using the standard automated perimetry (SAP). The spectral domain optical coherence tomography (SD-OCT) was used to measure the retinal nerve fiber layer (RNFL) thickness around the optic disc. Results. The PhNR amplitude (W/W, B/R), MD, and mean RNFL thickness in POAG eyes were significantly lower than normal eyes ( ). The R value in Normal + Glaucomatous group was higher than that of the only glaucomatous group. The R values of PhNR amplitude (B/R) with MD and RNFL were higher than those of PhNR amplitude (W/W). Significant linear association was found in the relationship between RNFL thickness and PhNR amplitude (B/R) ( , ). However, significant curve associations were found in the relationship between MD and PhNR amplitude (B/R) and RNFL thickness ( , 0.442, ). Conclusions. The ganglion cell activity can be more efficiently evaluated with the PhNR elicited with a red than with a broadband stimulus. The linear relationship between the PhNR amplitude and RNFL thickness indicates that inner retinal function declines proportionately with neural loss in glaucomatous eyes. The PhNR and RNFLT are more objective tools to detect glaucomatous damage than visual field. 1. Introduction Glaucoma is an optic neuropathy characterized by progressive loss of retinal ganglion cells (RGCs) and their axons, changes in optic disc topography, and associated deficits of visual function. Early detection is important to initiate treatment in the earliest phases of glaucoma and to avoid its natural progression to blindness. Various techniques for functional and structural evaluation of the neuroretinal structures of the ocular system are available. It was generally believed that the neural activity of retinal ganglion cells (RGCs) contributes little to shaping the ERGs. However, a response driven by RGCs receiving signals from cones was newly discovered and called the PhNR [1]. The PhNR is strongly attenuated in primates with experimentally induced glaucoma [1] and after an intravitreous injection of tetrodotoxin that blocks the voltage-gated sodium channels in retinal neurons
Comparison of Abstracts Written by Native Speakers and Second Language Learners  [PDF]
Xiaoli Ji
Open Journal of Modern Linguistics (OJML) , 2015, DOI: 10.4236/ojml.2015.55041
Abstract: As an ideal vehicle for projecting news value, the journal abstract appears to be growing in importance, as noted by a number of writers, but the studies are still not enough, especially comparison study between the abstracts written by native speaker and second language learner. So this paper tries to find out both similarities and differences in structure of abstracts from these two groups through genre analysis of two corpuses: one for abstracts from native speakers, the other for abstracts from Chinese English learners. The results indicate that the Chinese learners focus too much on introduction move and can’t use tense properly in all cased. This result leads us to consider the teaching of writing for special purpose.
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