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Search Results: 1 - 10 of 37264 matches for " Yi Rong "
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Effects of Exogenous Nitric Oxide on Wheat Exposed to Enhanced Ultraviolet-B Radiation  [PDF]
Liyan Yang, Rong Han, Yi Sun
American Journal of Plant Sciences (AJPS) , 2013, DOI: 10.4236/ajps.2013.46159
Abstract:

We explored the use of exogenous nitric oxide (NO) on alleviating effects of UV-B light on winter wheat development. Triticum aestivum L. cv. Linyou 7287 seeds were irradiated with UV-B (10.08 kJ·m2·d–1) (enhanced UV-B) and watered with either water or 100 μmol·L–1 SNP solution. Plants were also watered with the SNP alone. The results showed that enhanced UV-B produced negative effects on seedling development. Leaf length decreased and seedling biomass dropped significantly compared with the control. Photochemical efficiency (Fv/Fm) dropped, and chlorophyll and carotenoid content as well as the ATPase activity declined. Content of UV-absorbing compounds and activity of the POD increased compared to the control. Application of the SNP, a NO donor partially protected wheat seedlings exposed to elevated UV-B radiation in that their leaf lengths and biomass accumulation were enhanced compared to the UV-B treatment alone. SNP also improved the contents of chlorophyll, carotenoid and UV-absorbing compounds in leaves. ATPase activity was enhanced but no influence on POD activity. Furthermore, the application of SNP alone showed a favorable effect on seedling growth compared with the control.

Effects of Cu2+ on Wheat Seedlings Exposed to Enhanced Ultraviolet-B Radiation  [PDF]
Liyan Yang, Zhaoqing Wang, Yuqi Hou, Rong Han, Yi Sun
American Journal of Plant Sciences (AJPS) , 2014, DOI: 10.4236/ajps.2014.520322
Abstract:

To explore the wheat seedling development and physiological responses under copper contamination and enhanced ultraviolet-B (UV-B) irradiation, 10 mg·L-1 CuCl2 solution was irrigated to Triticum aestivum L. cv. Linyuan 2069 one day after germination with or without ultraviolet-B (10.08 kJ m-2·d-1) light exposure, respectively. The results showed that Cu2+ and UV-B caused various adverse effects on wheat seedling development. Cu2+ hindered root development by significantly reducing root number, while UV-B dwarfed seedling height and decreased the leaf length. Chlorophyll content and activity of ATPase in thylakoid membrane of wheat leaves dropped significantly under enhanced UV-B while the activity of ATPase in plasma membrane of seedling root was significantly decreased in Cu2+ group. Relative electric conductivity of leaves significantly increased in both Cu2+ and UV-B groups, so did the biomass. We also observed that combined Cu2+ and UV-B showed more adverse effects on wheat seedlings than either of them alone except for root growth.

Design of High-Utilization Current-Sharing Controller for Battery-Ultracapacitor Hybrid Energy Storage System  [PDF]
Lan-Rong Dung, Zhe-Yi Lin
Circuits and Systems (CS) , 2018, DOI: 10.4236/cs.2018.99013
Abstract: In this paper, a new control strategy of battery-ultracapacitor hybrid energy storage system (HESS) is proposed for hybrid electric drive vehicles (HEVs). Compared to the stand, alone battery system may not be sufficient to satisfy peak demand periods during transients in HEVs, the ultracapacitor pack can supply or recover the peak power and it can be used in high C-rates. However, the problem of battery-ultracapacitor hybrid energy storage system (HESS) is how to interconnect the battery and ultracapacitor and how to control the power distribution. This paper reviewed some battery-ultracapacitor hybrid energy storage system topology and investigated the advantages and disadvantages, then proposed a new control strategy. The proposed control strategy can improve the system performance and ultracapacitor utilization, while also decreasing the battery pack size to avoid the thermal runaway problems and increase the life of the battery. The experiment results showed the proposed control strategy can improve 3% - 4% ultracapacitor utilization.
Flora Features of Orchids in Jinfo Mountain Nature Reserve
YI Si-rong,YI Si-rong,YI Si-rong,HUANG Ya
Journal of Chongqing Normal University , 2010,
Abstract: In order to study the flora character of the orchids from Jinfomount. Nature Reserve, this paper has analysised the distributed pattern of the orchids by field surveying, collection sample and data analysised. The flora characteristics of orchids from Jinfomount. Nature Reserve is as follows:1)Rich in types and complex diverse in elements, and the result shows that there are 114 species belonging to 48 genera, and there are 8 areal-types of flora according to Wu's classificationprinciples for the Chinese seed plants;2)Obvious in unique situation, and there are 47 species endemic to China and 3 species endemic to Jinfo mountain;3)Clear in vertical distribution pattern, and the distribution at altitude grade take on the direction of expand in middle;4)Greater differences to the level of threat at different altitudes. It is lower in the low-lying areas and the resources are saved better relatively. It is significant difference from the other regions at the distribution pattern;5)Obvious temperate character of flora and it is tropical related. It shows that it is rich is types, obvious in unique situation,and its distribution pattern is significant difference from the other reions and it is tropical related.
Is Remusatia (Araceae) Monophyletic? Evidence from Three Plastid Regions
Rong Li,Tingshuang Yi,Heng Li
International Journal of Molecular Sciences , 2012, DOI: 10.3390/ijms13010071
Abstract: The genus Remusatia (Araceae) includes four species distributed in the tropical and subtropical Old World. The phylogeny of Remusatia was constructed using parsimony and Bayesian analyses of sequence data from three plastid regions (the rbcL gene, the trnL-trnF intergenic spacer, and the rps16 intron). Phylogenetic analyses of the concatenated plastid data suggested that the monophyly of Remusatia was not supported because R. hookeriana did not form a clade with the other three species R. vivipara, R. yunnanensis, and R. pumila. Nevertheless, the topology of the analysis constraining Remusatia to monophyly was congruent with the topology of the unconstrained analysis. The results confirmed the inclusion of the previously separate genus Gonatanthus within Remusatia and disagreed with the current infrageneric classification of the genus.
Automatic Fuzzy Control Design for Parallel DC-DC Converters
Rong Jong Wai,Yi Chang Chen
Lecture Notes in Engineering and Computer Science , 2009,
Abstract:
Design of Automatic Fuzzy Control for Parallel DC-DC Converters
Rong Jong Wai,Yi Chang Chen
Engineering Letters , 2009,
Abstract:
Spontaneous Rupture of the Left External Iliac Vein: Case Report  [PDF]
Xue-Rong Chen, Wei-Zhong Zhang, Dong-Yi Xin
Surgical Science (SS) , 2013, DOI: 10.4236/ss.2013.47064
Abstract:

Spontaneous rupture of the iliac vein is rare clinical emergency. Sudden onset, hypertension, and abdominal distention with a nonpulsatile mass in the iliac fossa are the chief symptoms. We reported another case of spontaneous rupture of the left external iliac vein diagnosed intra-operatively and successfully treated with direct suturing. And related literatures were reviewed. Possible etiology and optimal treatment were discussed.

Implementation of RANSAC Algorithm for Feature-Based Image Registration  [PDF]
Lan-Rong Dung, Chang-Min Huang, Yin-Yi Wu
Journal of Computer and Communications (JCC) , 2013, DOI: 10.4236/jcc.2013.16009
Abstract:

This paper describes the hardware implementation of the RANdom Sample Consensus (RANSAC) algorithm for featured-based image registration applications. The Multiple-Input Signature Register (MISR) and the index register are used to achieve the random sampling effect. The systolic array architecture is adopted to implement the forward elimination step in the Gaussian elimination. The computational complexity in the forward elimination is reduced by sharing the coefficient matrix. As a result, the area of the hardware cost is reduced by more than 50%. The proposed architecture is realized using Verilog and achieves real-time calculation on 30 fps 1024 * 1024 video stream on 100 MHz clock.

Cell Size Dependent Responses of Phytoplankton Assemblages to Nitrate and Phosphate Additions in Surface Waters of the Northern South China Sea  [PDF]
Rong Yi, Yehui Tan, Shengfu Wang, Pingping Shen, Zhixin Ke, Liangmin Huang, Xingyu Song, Gang Li
Open Journal of Marine Science (OJMS) , 2014, DOI: 10.4236/ojms.2014.42008
Abstract:

Bioavailability of nitrogen (N) and phosphorus (P) is known to affect marine phytoplankton physiology, thus influencing their primary productivity; and it’s of general interest to see how the N or/and P additions affect the differently cell-sized phytoplankton assemblages. Data from the northern South China Sea showed that P addition increased up to 6 times of total chl a content within 24 h in the estuarine water; and N+P addition increased more than 20 times of chl a within 144 h in the pelagic water. The P addition powered 18.0% and 149% increase in the carbon fixation of larger (>3 μm) and smaller (<3 μm) cell assemblies from the estuarine water, respectively; while the limited effects were observed between them in the pelagic water. Additions of N and P interactively increased the carbon fixation of both cell-sized assemblies in the pelagic water, but only small cell-sized fraction in the estuarine water. Moreover, the estuarine phytoplankton cells appeared to respond faster to the nutrient additions than the pelagic ones, and the smaller cells respond to a greater extent than their larger counterparts in the estuarine water but not in the pelagic water.

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