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Search Results: 1 - 10 of 71177 matches for " Yun Yang "
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Application of computer vision technology on raising sow and procreating of processing  [PDF]
Yun Yang
Agricultural Sciences (AS) , 2013, DOI: 10.4236/as.2013.412093

This paper expounds the application of machine vision theory, composition and technology in the sow breeding process monitoring, auxiliary judgment, and growth of young monitoring. It also points out the problems and deficiency in the application of machine vision technology, and discusses the development trends and prospects of the machine vision technology in agricultural engineering. The application of machine vision is a process in which dynamic original image from the sows estrus is collected with a CCD camera, and then black and white ash three binarization image in adjournments of the threshold value is made by using image acquisition card, through the median filtering and gray processing. The practitioners can extract respective image information from the sow estrus, pregnancy and birth delivery. Applying the computer vision system in the sow farm effectively enhances the practitioners’ objectivity and precision in their efforts to assess the whole process of sow birth delivery.

The Signless Laplacian Spectral Radius of Some Special Bipartite Graphs  [PDF]
Yun Yang
Journal of Applied Mathematics and Physics (JAMP) , 2018, DOI: 10.4236/jamp.2018.610181
Abstract: This paper mainly researches on the signless laplacian spectral radius of bipartite graphs Dr(m1,m2;n1,n2). We consider how the signless laplacian spectral radius of Dr(m1,m2;n1,n2)changes under some special cases. As application, we give two upper bounds on the signless laplacian spectral radius of Dr(m1,m2;n1,n2), and determine the graphs that obtain the upper bounds.
Establishment of Index System for Effect Evolution of Poverty-alleviation Fund in Rural Area-- Take the Research Result in Leishan County, Guizhou Province as an Example
Yun Yang
International Journal of Marketing Studies , 2009, DOI: 10.5539/ijms.v1n2p107
Abstract: This paper try to utilize both economic and mathematic methods to set up an evolution index system of poverty-alleviation fund in rural area by analyzing the source, the target of investment, the operation and management of poverty alleviation. The establishment of index system for effect evaluation of poverty-alleviation fund is analyzed from its theory, principle and content. Primary selection of the index system is selected via Analytic Hierarchy Process (AHP). Meanwhile, through unit testing and whole testing of the index system, a five-dimensional index system for effect evaluation of poverty-alleviation fund is finally established. Finally empirical testing of the index system is conducted.
Suggestions on Real Option Pricing in B/S Model
Yun Yang
International Journal of Business and Management , 2009,
Abstract: Based on the most popularizing B/S model, this paper has analyzed some obstacles as obtaining the pricing parameters in real option pricing model in detail. The pricing formula should be adjusted according to changing situation to meet the special requirements of investment project.
Horseshoes for $\mathcal{C}^{1+α}$ mappings with hyperbolic measures
Yun Yang
Mathematics , 2014, DOI: 10.3934/dcds.2015.35.5133
Abstract: We present here a construction of horseshoes for any $\mathcal{C}^{1+\alpha}$ mapping $f$ preserving an ergodic hyperbolic measure $\mu$ with $h_{\mu}(f)>0$ and then deduce that the exponential growth rate of the number of periodic points for any $\mathcal{C}^{1+\alpha}$ mapping $f$ is greater than or equal to $h_{\mu}(f)$. We also prove that the exponential growth rate of the number of hyperbolic periodic points is equal to the hyperbolic entropy. The hyperbolic entropy means the entropy resulting from hyperbolic measures.
Liv?ic Measurable Rigidity Theorem for \mathcal{C}^1 Generic Volume-preserving Systems
Yun Yang
Mathematics , 2014,
Abstract: In this paper, we prove that for $\mathcal{C}^1$ generic volume-preserving Anosov diffeomorphisms of a compact Riemannian manifold, Liv\v{s}ic measurable rigidity theorem holds. We also prove that for $\mathcal{C}^1$ generic volume-preserving Anosov flows of a compact Riemannian manifold, Liv\v{s}ic measurable rigidity theorem holds.
Construction of Accounting Comprehensive Experimental Platform Based on SaaS Mode  [PDF]
Ying Yang, Tao Jin, Yun Zhao
Creative Education (CE) , 2012, DOI: 10.4236/ce.2012.37B031

The limitation of accounting experimental teaching software leads to the level of teaching falling behind that of practical applications. In order to solve this problem, it is necessary to construct an accounting comprehensive experimental platform. It is highly feasible to establish such a platform based on SaaS mode. Furthermore, when developing this platform, some new requirements are proposed to the functional design of the platform.

Fate of Nutrients, Trace Metals, Bacteria, and Pesticides in Nursery Recycled Water  [PDF]
Yun-Ya Yang, Gurpal S. Toor
Journal of Water Resource and Protection (JWARP) , 2015, DOI: 10.4236/jwarp.2015.74023
Abstract: Faced with rapid population growth and fresh water scarcity, reuse of reclaimed water is growing worldwide and becoming an integral part of water resource management. Our objective was to determine the fate of nutrients, trace metals, bacteria, and legacy organic compounds (organochlorine pesticides) in the recycled water from five commercial nursery ponds in Florida. The pH of recycled water at all sites was 8.1 - 9.3, except one site (6.5), while the electrical conductivity (EC) was 0.31 - 0.36 dS/m. Concentrations of trace metals in recycled water were low: Fe (0.125 - 0.367 mg/L), Al (0.126 - 0.169 mg/L), B (0.104 - 0.153 mg/L), Zn (0.123 - 0.211 mg/L), and Mn (<0.111 mg/L). Total phosphorus (P) and total nitrogen (N) in the recycled water were 0.35 - 1.00 mg/L and 1.56 - 2.30 mg/L, respectively. Among organochlorine pesticides, endrin aldehyde was the only pesticide detected in all nursery recycled water ponds, with concentrations from 0.04 to 0.10 μg/L at four sites and 1.62 μg/L at one site. Other detected pesticides in recycled water were methoxychlor, endosulfan sulfate, dichlorodiphenyldichloroethylene (DDE) and α-chlorodane, with concentrations < 0.20 μg/L. Total coliforms and Escherichia coli (E. coli) in recycled water were 20 - 50 colony forming units (CFU)/100 mL. We conclude that the concentrations of various inorganic and organic compounds in recycled water are very low and do not appear to be problematic for irrigation purposes in Florida’s nursery recycled water ponds.
Solution Processable Material Derived from Aromatic Triazole, Azomethine and Tris: Preparation and Hole-Buffering Application in Polymer Light-Emitting Diodes  [PDF]
Chih-Yang Lin, Yun Chen
Journal of Materials Science and Chemical Engineering (MSCE) , 2018, DOI: 10.4236/msce.2018.69002
Abstract: This work presents the synthesis of a new hole-buffering material TAZS and its successful application in polymer light-emitting diodes to enhance device performance. The TAZS is composed of aromatic 1,2,4-triazolylcore linked with three trihydroxy tert-butyl terminals via azomethine linkages. The TAZS forms ashomogeneous film deposited by spin-coating process. The HOMO and LUMO levels of TAZS are -5.23 eV and -2.40 eV, respectively, as estimated from cyclic voltammogram. The current density results of hole-only and electron-only devices confirm strong hole-buffering capability of TAZS layer. Multilayer PLEDs with different thickness of TAZS (ITO/PEDOT: PSS/TAZS (x nm)/SY/ETL/LiF/Al) have been successfully fabricated, using spin-coating process to deposit hole-injecting PEDOT: PSS, TAZS, and emissive SY layers. The PLED with 16 nm TAZS reveals the optimal device performance, with maximum luminance and maximum current efficiency of 19,046 cd/m2 and 4.08 cd/A, respectively, surpassing those without TAZS as HBL (8484 cd/m2, 2.13 cd/A). The hole-buffering characteristic of TAZS contributes greatly to improved charges’ recombination ratio and enhanced emission efficiency.
A Productivity-Centred Approach for Classifying Software Tool Interfacing
Yang, Yun;Han, Jun;
Journal of the Brazilian Computer Society , 1998, DOI: 10.1590/S0104-65001998000200005
Abstract: the effectiveness of tool integration in software development environments is ultimately measured by its ability in improving the productivity of the user. traditionally, issues related to tool integration are often classified according to aspects of such mechanisms as user interface, control, and data integration which are purely from the viewpoint of the environment developer. this mechanism-based classification has worked well in analysing the relevant issues of tool integration. however, its usefulness as a guide to achieving effective tool integration is limited. in this paper, we introduce an alternative classification scheme aimed at gradual improvement to the effectiveness of tool integration. as such, this classification scheme provides a guide to tool integration along the line of improving the user's productivity. in terms of this classification, we compare and experiment in depth a variety of integration techniques using a uniform tool interfacing architecture as well as discuss the issues of the potential user productivity gains.
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