Chen C.-S.,Da - Yeh University
IEEE Transactions on Fuzzy Systems | Year: 2011
This paper proposes a robust self-organizing neural-fuzzy-control (RSONFC) scheme for a class of uncertain nonlinear multiple-input-multiple-output (MIMO) systems. We first develop a self-organizing neural-fuzzy network (SONFN) with concurrent structure and parameter learning. The fuzzy rules of SONFN are generated or pruned systematically. The proposed RSONFC scheme comprises an SONFN identifier, an uncertainty observer, and a supervisory controller. The SONFN identifier functions as the principal controller, and the uncertainty observer is designed to oversee uncertainties within the compound system. The supervisory controller combines sliding-mode control (SMC) and an adaptive bound-estimation scheme with various weights to achieve H∞ tracking performance with a desired level of attenuation. Projection-type adaptation laws of network parameters developed using the Lyapunovs synthesis approach guarantee the stability of the overall control system. Simulation studies on a single-link flexible-joint manipulator and a two-link robot demonstrate the effectiveness of the proposed control scheme. © 2006 IEEE.
Tsai H.-L.,Da - Yeh University
Solar Energy | Year: 2010
This paper presents a novel model of photovoltaic (PV) module which is implemented and analyzed using Matlab/Simulink software package. Taking the effect of sunlight irradiance on the cell temperature, the proposed model takes ambient temperature as reference input and uses the solar insolation as a unique varying parameter. The cell temperature is then explicitly affected by the sunlight intensity. The output current and power characteristics are simulated and analyzed using the proposed PV model. The model verification has been confirmed through an experimental measurement. The impact of solar irradiation on cell temperature makes the output characteristic more practical. In addition, the insolation-oriented PV model enables the dynamics of PV power system to be analyzed and optimized more easily by applying the environmental parameters of ambient temperature and solar irradiance. © 2010 Elsevier Ltd. All rights reserved.
Da - Yeh University | Date: 2014-05-07
A LED cooling structure includes a substrate (10) having a circuit layout (11) and one or a number of thermally conductive plates (14) arranged on the top wall thereof, one or a plurality of through holes (12) cut through the opposing top and bottom walls thereof and a thermally conductive post (13) mounted in each through hole (12) and connected with the thermally conductive plates (14), and one or a number of light-emitting devices (20) mounted at the substrate (10) and electrically connected to the circuit layout (11) with the bottom side thereof kept in contact with one respective thermally conductive plate (14) for quick dissipation of heat.
Da - Yeh University | Date: 2013-04-03
An expanded laminate material includes a plastic sheet and two expanded layers. The plastic sheet has upper and lower surfaces and a thickness of between 0.05 and 1 mm. The first expanded layer has upper and lower surfaces, a foam density of between about 1.2 and 8 pcf and a thickness of between about 1 and 8 mm. The lower surface of the first expanded layer is directly bonded to the upper surface of the plastic sheet. The a second expanded layer has upper and lower surfaces, a foam density of between about 1.2 and 8 pcf and a thickness of between about 1 and 8 mm. The upper surface of the second expanded layer is directly bonded to the lower surface of the plastic sheet. The first and second expanded layers comprise a material selected from the group consisting of expanded polyethylene and expanded polypropylene.
Founder Fine Chemical Industry Co., Wang and Da - Yeh University | Date: 2016-08-31
The present invention relates to the preparation of a hydrophilic antioxidant containing a group of Methyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate/polyalkylene glycol bridge/carboxylic acid/sulfonic acid of formula (I) as defined in claim 1, which have a low volatility and high water solubility, and also have a surfactant (emulsifier) characteristics that can help other oil-soluble antioxidants used in the water phase system in industry.
Chen and Da - Yeh University | Date: 2015-09-16
The present invention relates to a colored metal film comprising a metal article and a plurality of pores. The plurality of pores further comprises a high layer, an intermediate layer, and a low layer, in which the three layers together forms an embossed image. The present invention also relates to a method of manufacturing colored metal films. The method is used to manufacture a flat image or an embossed image on a metal article. The method comprises a finishing process, a first coating process, a color adjustment, a first printing process, an etching process, a second coating process, a second printing process, a sealing process, and a cleaning process.
Founder Fine Chemical Industry Co., Wang and Da - Yeh University | Date: 2016-05-04
The present invention relates to the preparation of a hydrophilic antioxidant comprising a methyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate group / poly alkylene glycol bridge group / carboxylic acid group, which has low volatility and high water solubility, and also has a surfactant (emulsifier) characteristic which is useful in the industrial application of oil-soluble antioxidants in aqueous phase systems.
Da - Yeh University | Date: 2014-06-04
Combination of a LED lamp and a heat sink structure including a heat sink (10) formed by bending or stamping a metal sheet member into shape to provide a plurality of upright walls (11) and mounting holes (13), a circuit board (20) carrying a LED or LEDs (21) at the front side and having a plurality of through holes (22), a plurality of metal connection members (30) mounted in the mounting holes (13) and the through holes (22) to fixedly connect the heat sink (10) and the circuit board (20) together, and a lampshade (40) surrounding the circuit board (20) to let the heat sink (10) be exposed to the outside.
Da - Yeh University | Date: 2014-12-31
An arc LED includes a lamp holder (10), an arc radiation fin unit (20) mounted at the lamp holder (10), a circuit board (30) mounted at the arc radiation fin unit (20) and carrying a plurality of LEDs (31) that are mounted in two opposing end areas of the circuit board (30) in a relatively higher density and in the middle area of the circuit board (30) in a relatively lower density, and an arc lampshade (40) covered over the lamp holder (10).
Da - Yeh University | Date: 2016-07-13
In accordance with one aspect of the present disclosure, a greeting card is disclosed that includes a plurality of panels connected such that the greeting card is reconfigurable between a closed configuration and an open configuration, at least one object positioned between the plurality of panels that is reconfigurable between a collapsed configuration and an expanded configuration in three dimensions, and an attachment member connecting the at least one object to the plurality of panels such that the at least one object can be detached from the plurality of panels. In various embodiments, the greeting card may further include a locking member that is configured and dimensioned to maintain the expanded configuration of the at least one object. The attachment member can be an adhesive, a tether, a magnet, perforations. The attachment can be reversible or irreversible. The object can be displayed.