National Pingtung University of Science and Technology

www.npust.edu.tw/
Pingtung, Taiwan

National Pingtung University of Science and Technology is a public university in Neipu Township, Pingtung County, Taiwan. NPUST occupies the in all of Taiwan. It was established in April 1924 and over the years it has undergone several restructurings and name-changes. The current name of National Pingtung University of Science and Technology was adopted in August 1997. The university is the university in Taiwan to host a Rescue Center for Endangered Wild Animals, Shelter for Stray Dogs and Working Dog Training School. In addition to the Neipu Campus, NPUST also has additional land in Kenting National Park and Taitung County. Wikipedia.


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Patent
National Pingtung University of Science and Technology | Date: 2016-01-22

The present invention relates to a method of separating betanin from red quinoa by supercritical fluid fractionation, including: mixing an extract of red quinoa with an ethanol/water mixture to obtain a mixture of red quinoa/ethanol/water; and separating betanin from the mixture of red quinoa/ethanol/water by supercritical fluid fractionation, which operates under a pressure between 2300 to 4400 psi at a temperature between 35 to 65 C. for a period of time between 15 to 90 minutes.


Tsao L.C.,National Pingtung University of Science and Technology
Journal of Alloys and Compounds | Year: 2011

This study investigated the effects of adding 0.5 wt.% nano-TiO2 particles into Sn3.5Ag0.5Cu (SAC) leadfree solder alloys on the growth of intermetallic compounds (IMC) with Cu substrates during solid-state isothermal aging at temperatures of 100, 125, 150, and 175 °C for up to 7 days. The results indicate that the morphology of the Cu6Sn5 phase transformed from scallop-type to layer-type in both SAC solder/Cu joints and Sn3.5Ag0.5Cu-0.5 wt.% TiO2 (SAC) composite solder/Cu joints. In the SAC solder/Cu joints, a few coarse Ag3Sn particles were embedded in the Cu6Sn5 surface and grew with prolonged aging time. However, in the SAC composite solder/Cu aging, a great number of nano-Ag3Sn particles were absorbed in the Cu 6Sn5 surface. The morphology of adsorption of nano-Ag 3Sn particles changed dramatically from adsorption-type to moss-type, and the size of the particles increased. The apparent activation energies for the growth of overall IMC layers were calculated as 42.48 kJ/mol for SAC solder and 60.31 kJ/mol for SAC composite solder. The reduced diffusion coefficient was confirmed for the SAC composite solder/Cu joints. © 2011 Elsevier B.V. All rights reserved.


Tsao L.C.,National Pingtung University of Science and Technology
Journal of Alloys and Compounds | Year: 2011

A Sn3.5Ag0.5Cu-0.5nano-TiO2 composite lead-free solder was prepared by adding 20 nm TiO2 to Sn3.5Ag0.5Cu (wt.%) solder. This study investigates the morphology of the intermetallic compounds (IMCs) formed during the soldering reactions between Sn3.5Ag0.5Cu-0.5nano-TiO2 solder and Cu substrates at various temperatures ranging from 250 to 325 °C. The Cu6Sn5 grains formed in all soldering below 300 °C were scallop-type, while those formed at both 300 °C and 325 °C were prism-type in the early stage of soldering (less than 30 min). Also, Cu6Sn5 grains that formed at both 300 °C and 325 °C changed from prism-type to scallop-type with increasing soldering time. It is quite interesting that the morphology of Cu6Sn5 grains affects absorption by nano-Ag3Sn particles. Especially, the scallop-type Cu6Sn5 grains formed by the ripening process are likely to be "captured" by the large amount of nano-Ag 3Sn particles. These nanoparticles apparently decrease the surface energy and hinder the growth of the Cu6Sn5 IMC layer. In addition, the grain size of the nano-Ag3Sn compounds increased with increasing soldering temperature and time. All these results indicate that Gibbs absorption theory can be used to explain the formation of these nanoparticles and their effects on the surface energy of the IMCs. © 2010 Elsevier B.V. All rights reserved.


Hsiung C.-M.,National Pingtung University of Science and Technology
Journal of Engineering Education | Year: 2010

BACKGROUND: Considerable evidence exists to suggest that students who study cooperatively reap significant benefits in terms of their learning performance. However, sooner or later, most cooperative learning teams have to deal with one or more members whose actions disturb the team. Unless these problems are quickly resolved, the cooperative learning team gradually becomes dysfunctional and the benefits of cooperative learning are diminished. PURPOSE (HYPOTHESIS): A method is proposed for identifying dysfunctional cooperative learning teams by comparing the academic achievement of students in a cooperative learning condition with that of students in an individual learning condition. DESIGN/METHOD: A series of experiments were performed in which 42 sophomore mechanical engineering students were randomly assigned to the two learning conditions and were formed into mixed-ability groups comprising three team members. The academic performance of the students in the two learning conditions was then systematically compared in terms of their respective test scores. RESULTS: Dysfunctional teams were identified using a new quality index defined as the mean test score of the team divided by the standard deviation of the team members' test scores. The probability of a Type I error was quantified using a control chart. The identification results were verified by analyzing the students' off-task behavior frequency and attitudes toward cooperative learning, respectively. CONCLUSIONS: The experimental results confirm that the proposed quality index is a potential indicator of dysfunctional cooperative learning teams.


Patent
National Pingtung University of Science and Technology | Date: 2015-04-02

A Chinese herbal aqueous extract having anti-anxiety activities and a method of in vitro evaluating the same are disclosed. Neural cells and/or glial cells are cultured in a medium containing the Chinese herbal aqueous extract, and then subjected to an electric pulse treatment to form epileptic cells. The epileptic cells are applied on evaluation of at least one criterion of anti-anxiety activities of the Chinese herbal aqueous extract.


Patent
National Pingtung University of Science and Technology | Date: 2015-03-16

The present invention provides an artificial decapeptide for inducing the development of gonad in crustacean, a medication including the artificial decapeptide and a method of inducing the gonad development of crustacean. The method includes administrating an effective amount of an artificial decapeptide to a crustacean, thereby promoting gonad development of crustaceans, wherein the artificial decapeptide includes a sequence set forth in SEQ ID NO: 2.


Patent
National Pingtung University of Science and Technology | Date: 2015-04-22

An isolated nucleic acid includes a sequence selected from the group consisting of the following: (i) a first nucleotide sequence of SEQ ID NO.: 1, SEQ ID NO.: 2, SEQ ID NO.: 3, SEQ ID NO.: 4, or SEQ ID NO.: 5; (ii) a second nucleotide sequence encoding an amino acid sequence of SEQ ID NO.: 6, SEQ ID NO.: 7, SEQ ID NO.: 8, SEQ ID NO.: 9, or SEQ ID NO.: 10; and (iii) a third nucleotide sequence complementary to the first nucleotide sequence or the second nucleotide sequence.


Patent
National Pingtung University of Science and Technology | Date: 2014-01-06

A lined sleeve for tube welding is in the form of an inner tube including a first protruded portion and a second protruded portion. The first protruded portion and the second protruded portion are respectively received in two ends respectively of two tubes to be welded together. The inner tube further includes a recessed portion between the first protruded portion and the second protruded portion.


The present invention is directed to a recombinant fusion antigen gene, a recombinant fusion antigen protein and a subunit vaccine composition having the same against infection of porcine reproductive and respiratory syndrome virus (PRRSV). A recombinant fusion antigen gene, which encodes glycoprotein GP5 with truncated N-terminal decoy epitope, a linker sequence and membrane protein M, followed by codon optimization, is expressed by a baculovirus expression system in vitro, thereby enhancing a yield of the recombinant fusion antigen protein. The recombinant fusion antigen protein can be applied in a subunit vaccine composition, for providing vaccinated animals with better protection ability without the risks of virulent spread and virulent recovery.


Patent
National Pingtung University of Science and Technology | Date: 2014-06-17

An isolated nucleic acid includes a sequence selected from the group consisting of the following: (i) a first nucleotide sequence of SEQ ID NO.: 1, SEQ ID NO.: 2, SEQ ID NO.: 3, SEQ ID NO.: 4, or SEQ ID NO.: 5; (ii) a second nucleotide sequence encoding an amino acid sequence of SEQ ID NO.: 6, SEQ ID NO.: 7, SEQ ID NO.: 8, SEQ ID NO.: 9, or SEQ ID NO.: 10; and (iii) a third nucleotide sequence complementary to the first nucleotide sequence or the second nucleotide sequence.

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