Taiwan Research Institute

Taipei, Taiwan

Taiwan Research Institute

Taipei, Taiwan
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Su E.-C.,National Chung Hsing University | Huang B.-S.,Taiwan Research Institute | Wey M.-Y.,National Chung Hsing University
ACS Sustainable Chemistry and Engineering | Year: 2017

Real electroplating wastewater/liquid containing disodium ethylenediaminetetraacetate (Na2EDTA) and nickel (Ni), a platinum/nitrogen-doped TiO2/strontium titanate-TiO2 tube (a solar light-responsive material), and simulated sunlight were used as the photogenerated hole scavenger, photocatalyst, and light source, respectively, in the development and evaluation of a waste-to-energy system. Effects of the wastewater/liquid source, pH, EDTA concentration, EDTA/Ni molar ratio, EDTA/photocatalyst weight ratio, and the degree of Ni removal on the photocatalytic hydrogen evolution efficiency are discussed. Our results indicate that the hydrogen evolution efficiency is affected by these factors in the following order: EDTA/Ni molar ratio > EDTA/photocatalyst weight ratio > pH value. When the initial EDTA/Ni molar ratio and EDTA/photocatalyst weight ratios were 30 and 0.7, respectively, economically optimal hydrogen evolution efficiency (480.0 μmol/h/g) was achieved; when the waste liquid was further treated for Ni removal, improved and stable hydrogen evolution was achieved. These results indicate that our hydrogen evolution system increases the recycling value of the electroplating wastewater/liquids and reduces the pollution caused by their high heavy-metal concentrations and the species that increase their chemical oxygen demand. © 2017 American Chemical Society.


Ho Z.-P.,Taiwan Research Institute | Pan T.-N.,Tunghai University
Applied Mechanics and Materials | Year: 2013

Modern manufacturing involved many productions' constraints and corporation's objectives. This study tries to considering manufacturing process with customer preference modification; beside, takes convenience stores producing thawing and heating prepared (THP) food for an example. The study constructed a THP diversity with customer preference selection model. Two distribution data of customer behavior were introduced to design parameters of customer preference indicators. Through computer system simulations, the results showed it would increase the profits if manufacturing process considering customers preference. However, it may result in different profits if some of the assumptions are revised. Future research suggests applying this model to others industries. © (2013) Trans Tech Publications, Switzerland.


Su E.-C.,National Chung Hsing University | Huang B.-S.,Taiwan Research Institute | Wey M.-Y.,National Chung Hsing University
Solar Energy | Year: 2016

Strontium titanate/titanium dioxide nanotube composite (SrTiO3/TiO2 nanotube) exhibiting electronic delivery and visible light response was prepared by a facile hydrothermal method. Versatile multi-junction photocatalysts composed of SrTiO3/TiO2 nanotube, N-doped TiO2, and platinum (Pt) as the internal, middle, and outer layer materials, respectively, were successfully developed in this study. The excellent electronic delivery of TiO2 nanotube and redox potential differences among N-doped TiO2, SrTiO3, and TiO2 nanotube facilitated the migration of photogenerated electrons from the bulk to the surface of the multi-junction photocatalysts, resulting in retarded charge recombination rates and increased H2 evolution rates. Moreover, because of their redox potential difference, the TiO2 nanotube and N-doped TiO2 could also provide their conduction band to accept excited electrons from the valence band of SrTiO3, leading to better visible light response. The optimal H2 evolution rate (3513 μmol/h/g) was achieved under simulated sunlight irradiation when the SrTiO3/TiO2 nanotube weight ratio and the Pt coating amount of the multi-junction photocatalyst were controlled to 5 wt.% and 0.2 wt.%, respectively. © 2016 Elsevier Ltd


Lee P.-C.,Taiwan Research Institute | Su H.-N.,National Chung Hsing University
Portland International Conference on Management of Engineering and Technology | Year: 2015

There has been a good deal of studies investigating technology life cycle by measuring patent activity indicators, especially patent applications. As for four main stages of technology life cycle, there is consensus on the interpretation of technology evolution depicted as a S-shaped curve. For measuring market value of a patent, there have been a lot of empirical studies that test patent indicators concerning their appropriability as predictors of monetary patent value. This study aims to observe technology life cycle form the perspective of dynamics of patent characteristics, which are newly proposed as an approach for characterizing technology life cycle in this study. To obtain the objective of this research, DVD technologies which have been already experienced four stages of a life cycle, i.e. 1) Introduction, 2) Growth, 3) Maturity, 4) Decline, is selected for analyzing its patent characteristics as a function of different stages in its life cycle. The results obtained in this study can be served as a basis for creating a model for forecasting the size of potential market in each of the above 4 stages. The larger numbers of patent reference, non-patent references and foreign reference, which occurred in Maturity stage and Decline stage, suggest that mature and declined technology encourages patent inventors to cite prior patents in order to seek for opportunity of radical and discontinuous technological innovation. © 2014 Portland International Conference on Management of Engineering and Technology.


Lee P.-C.,Taiwan Research Institute | Su H.-N.,National Chung Hsing University
Portland International Conference on Management of Engineering and Technology | Year: 2015

During the past decades, it has been gradually recognised that science, technology and innovation (STI) can provide solution to macro level science and technology (S&T) problems. To foster STI that enables socioeconomic growth, it is widely regarded as necessary means to build institutional capacity for optimising governance of STI. Therefore, many countries seek to integrate STI policies as part of their national development strategies. Science, technology and innovation policy has been increasingly designed and implemented at supra- and sub-national level. © 2014 Portland International Conference on Management of Engineering and Technology.


Su E.-C.,National Chung Hsing University | Huang B.-S.,Taiwan Research Institute | Wey M.-Y.,National Chung Hsing University
RSC Advances | Year: 2016

An environmentally friendly and sustainable photocatalytic hydrogen production system was successfully developed using ethylenediaminetetraacetic acid (EDTA) found in the wastewater from electroplating plants as the photo-excited hole scavenger and a solar light responsive multi-junction material as the photocatalyst. Additionally, a facile method of metal removal was established to increase the photocatalytic hydrogen production efficiency. The influences of the metal concentration, pH of the electroplating wastewater, and the photocatalyst concentration on the efficacy of hydrogen production were studied in detail. The results show that before metal removal, the unchelated metal ions and/or the metal-EDTA chelates block the active sites of the photocatalyst, resulting in suppressed adsorptions of H+ ions and/or H2O, which results in negligible hydrogen production efficiency. Through the metal removal process developed in this study, most of the metals could be removed and most of the EDTA could be retained. The removal efficiencies of copper, nickel, and zinc ions were all higher than 90%, facilitating better reaction between the liberated EDTA molecules and the photo-excited holes, improved charge separation, and enhanced hydrogen production efficiency. The system showed economically optimal hydrogen production when the reaction pH was maintained at pH = 6 and the photocatalyst concentration was maintained at 2 g L-1 under simulated sunlight irradiation. © 2016 The Royal Society of Chemistry.


Ho Z.-P.,Taiwan Research Institute | Wu S.-P.,Taiwan Research Institute
Applied Mechanics and Materials | Year: 2013

Mobile audit mission is always troubling accounting personnel outdoor operations. Indeed; They need intelligent system as operations supports. over thousands of companies have to audit and over thousands of invoices have to check. it exhausts accounting personnel labor time. this study constructed a cloud computing server and use intelligent cell phone as controller approach to replace human robot auditing process; And apply robot visual recognization for speeding up audit process. the research results showed that it can work when the cloud servers response for calculations and used intelligent cell phone as controller. it both fits government and industry needs and application requirements. future study suggests initializing i-phone video recording for invoices automatic visual recognization. © (2013) Trans Tech Publications, Switzerland.


Liu S.-S.,National Yunlin University of Science and Technology | Wang C.-J.,Taiwan Research Institute
Automation in Construction | Year: 2012

Given the characteristics of linear construction projects, considerable research has been devoted to work productivity and continuity. However, most of these studies only consider single-skilled crews working on linear projects, neglecting the flexibility of multi-skilling in construction. Recently, researchers have revealed that multi-skilling in construction can lead to increased productivity, flexibility, and work continuity. Therefore, this study proposes a duration optimization model while introducing the concept of multi-skilling to integrate single/multiple-skilled crews to improve work performance. Moreover, to enhance the efficiency of problem solving, constraint programming (CP) is used to handle complicated combinatorial scheduling problems, and several heuristic rules involving schedules are engaged. The CP-based optimization minimizes project duration while two crew types, including single-skilled and multi-skilled crews, are integrated in the proposed model. A bridge example is used for several scenarios to illustrate the proposed model's handling of linear scheduling problems, demonstrating how multi-skilling can be used to optimize project duration and improve work continuity/efficiency in a construction context. © 2011 Elsevier B.V.


Ho Z.-P.,Taiwan Research Institute | Lee I.-C.,Taiwan Research Institute | Chen J.-J.,Taiwan Research Institute
Applied Mechanics and Materials | Year: 2013

Chinese herbal medicine has a long history, based on the Statistical Yearbook of the World Health Organization; half of people on earth have ever taken herbal remedies as an alternative health treatment. Except China, there are 123 countries that have established Chinese herbal medicine research related institutions. People didn't like taking medicine directly due to taste, therefore, Chinese herbal medicine drinks (CHMD) are moving toward a rising trend of quantity, partly replacing Western style medicine. This research tries to integrate CHMD products with customer preferences in Taiwan, aiming at customer CHMD preference analyzing and modeling. Each different CHMD has its own attribute and efficacy trend. Two distribution data sets of customer behavior were introduced to design computer integrated manufacturing parameters within a dynamic selection model software. Results also found that immunity adjust and anti-fatigue were the main reasons when customers purchased these CHMD. The reason may be from the tension life style caused. © (2013) Trans Tech Publications, Switzerland.


Tsai S.-J.,Taiwan Research Institute | Huo C.-L.,National Dong Hwa University | Yang Y.-K.,National Taiwan University of Science and Technology | Sun T.-Y.,National Dong Hwa University
Applied Soft Computing Journal | Year: 2013

The main focus of this paper is to develop an optimization method for the automatic fighter tracking (AFT) problem. The AFT problem is similar to a general evader-pursuer maneuvering automation problem between the dynamic systems of two highly interactive objects. This paper proposes a particle swarm optimizer-based variable feedback gain controller (PSO-based VFGC) for dealing with AFT problems. The PSO-based VFGC is designed to obtain the control value of a pursuer through an error-feedback gain controller. Once conditions of system closed-loop stability have been satisfied, the optimal feedback gains can be obtained through PSO, and the actual control values can be derived from the obtained values. Simulation results confirm the capabilities of the proposed method by comparing the results against two other methods in the field: the weight matrix value defined Ricatti equation, and the linear matrix inequality (LMI) based linear quadratic regulator (LQR). The performance of the proposed method is superior to that of its alternatives. © 2012 Elsevier B.V.

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