Development of a performance enhancer for a dehumidifier

Ting-Chiang Hsiao,Tun-Ping Teng 대한기계학회 2020 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.34 No.4

In this study, performance enhancers (PEs) for dehumidifiers (DHs) were developed, and the PEs were installed on the return air side of the dehumidifier to test and evaluate the performance of the dehumidifier. The PEs were aluminum plates with different pore size distributions that were based on the return air distributions of an evaporator. The pore size was inversely proportional to the airflow resistance to improve the uniformity of the return air through the evaporator for achieving better heat exchange and condensation performance of the evaporator. The PEs used in this study were divided into 3 (PE1), 6 (PE2), and 11 (PE3) grades based on the return air velocity. The dehumidifier performance test was performed based on the CNS 12492 standard under standard and overload environmental conditions. The experimental results revealed that the dehumidifiers with PEs can improve the dehumidification capacity and energy factor (EF) of the dehumidifier under most experimental conditions, and the dehumidifiers with PEs exhibited higher performance enhancement under the overload environmental condition than under the standard environmental condition. The highest EF values of dehumidifiers with PEs can be increased by 5.46 % for PE1 and by 5.84 % for PE3 compared with the original dehumidifier under the same experimental parameters, respectively. Based on the average experimental results of standard and overload environmental conditions, PE1 exhibited the highest improvement up to 4.76 % in the EF of a dehumidifier.

Deficiency or activation of peroxisome proliferator-activated receptor α reduces the tissue concentrations of endogenously synthesized docosahexaenoic acid in C57BL/6J mice

Hsiao, Wen-Ting,Su, Hui-Min,Su, Kuan-Pin,Chen, Szu-Han,Wu, Hai-Ping,You, Yi-Ling,Fu, Ru-Huei,Chao, Pei-Min The Korean Nutrition Society 2019 Nutrition Research and Practice Vol.13 No.4

BACKGROUND/OBJECTIVES: Docosahexaenoic acid (DHA), an n-3 long chain polyunsaturated fatty acid (LCPUFA), is acquired by dietary intake or the in vivo conversion of ${\alpha}$-linolenic acid. Many enzymes participating in LCPUFA synthesis are regulated by peroxisome proliferator-activated receptor alpha ($PPAR{\alpha}$). Therefore, it was hypothesized that the tissue accretion of endogenously synthesized DHA could be modified by $PPAR{\alpha}$. MATERIALS/METHODS: The tissue DHA concentrations and mRNA levels of genes participating in DHA biosynthesis were compared among $PPAR{\alpha}$ homozygous (KO), heterozygous (HZ), and wild type (WT) mice (Exp I), and between WT mice treated with clofibrate ($PPAR{\alpha}$ agonist) or those not treated (Exp II). In ExpII, the expression levels of the proteins associated with DHA function in the brain cortex and retina were also measured. An n3-PUFA depleted/replenished regimen was applied to mitigate the confounding effects of maternal DHA. RESULTS: $PPAR{\alpha}$ ablation reduced the hepatic Acox, Fads1, and Fads2 mRNA levels, as well as the DHA concentration in the liver, but not in the brain cortex. In contrast, $PPAR{\alpha}$ activation increased hepatic Acox, Fads1, Fads2, and Elovl5 mRNA levels, but reduced the DHA concentrations in the liver, retina, and phospholipid of brain cortex, and decreased mRNA and protein levels of the brain-derived neurotrophic factor in brain cortex. CONCLUSIONS: LCPUFA enzyme expression was altered by $PPAR{\alpha}$. Either $PPAR{\alpha}$ deficiency or activation-decreased tissue DHA concentration is a stimulus for further studies to determine the functional significance.

Deficiency or activation of peroxisome proliferator-activated receptor ⍺ reduces the tissue concentrations of endogenously synthesized docosahexaenoic acid in C57BL/6J mice

Wen-Ting Hsiao,Hui-Min Su,Kuan-Pin Su,Szu-Han Chen,Hai-Ping Wu,Yi-Ling You,Ru-Huei Fu,Pei-Min Chao 한국영양학회 2019 Nutrition Research and Practice Vol.13 No.4

BACKGROUND/OBJECTIVES: Docosahexaenoic acid (DHA), an n-3 long chain polyunsaturated fatty acid (LCPUFA), is acquired by dietary intake or the in vivo conversion of α-linolenic acid. Many enzymes participating in LCPUFA synthesis are regulated by peroxisome proliferator-activated receptor alpha (PPARα). Therefore, it was hypothesized that the tissue accretion of endogenously synthesized DHA could be modified by PPARα. MATERIALS/METHODS: The tissue DHA concentrations and mRNA levels of genes participating in DHA biosynthesis were compared among PPARα homozygous (KO), heterozygous (HZ), and wild type (WT) mice (Exp I), and between WT mice treated with clofibrate (PPARα agonist) or those not treated (Exp II). In ExpII, the expression levels of the proteins associated with DHA function in the brain cortex and retina were also measured. An n3-PUFA depleted/replenished regimen was applied to mitigate the confounding effects of maternal DHA. RESULTS: PPARα ablation reduced the hepatic Acox, Fads1, and Fads2 mRNA levels, as well as the DHA concentration in the liver, but not in the brain cortex. In contrast, PPARα activation increased hepatic Acox, Fads1, Fads2, and Elovl5 mRNA levels, but reduced the DHA concentrations in the liver, retina, and phospholipid of brain cortex, and decreased mRNA and protein levels of the brain-derived neurotrophic factor in brain cortex. CONCLUSIONS: LCPUFA enzyme expression was altered by PPARα. Either PPARα deficiency or activation-decreased tissue DHA concentration is a stimulus for further studies to determine the functional significance.

Factors Related to Treatment Refusal in Taiwanese Cancer Patients

Chiang, Ting-Yu,Wang, Chao-Hui,Lin, Yu-Fen,Chou, Shu-Lan,Wang, Ching-Ting,Juang, Hsiao-Ting,Lin, Yung-Chang,Lin, Mei-Hsiang Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.8

Background: Incidence and mortality rates for cancer have increased dramatically in the recent 30 years in Taiwan. However, not all patients receive treatment. Treatment refusal might impair patient survival and life quality. In order to improve this situation, we proposed this study to evaluate factors that are related to refusal of treatment in cancer patients via a cancer case manager system. Materials and Methods: This study analysed data from a case management system during the period from 2010 to 2012 at a medical center in Northern Taiwan. We enrolled a total of 14,974 patients who were diagnosed with cancer. Using the PRECEDE Model as a framework, we conducted logistic regression analysis to identify independent variables that are significantly associated with refusal of therapy in cancer patients. A multivariate logistic regression model was also applied to estimate adjusted the odds ratios (ORs) with 95% confidence intervals (95%CI). Results: A total of 253 patients (1.69%) refused treatment. The multivariate logistic regression result showed that the high risk factors for refusal of treatment in cancer patient included: concerns about adverse effects (p<0.001), poor performance(p<0.001), changes in medical condition (p<0.001), timing of case manager contact (p=.026), the methods by which case manager contact patients (p<0.001) and the frequency that case managers contact patients (${\geq}10times$) (p=0.016). Conclusions: Cancer patients who refuse treatment have poor survival. The present study provides evidence of factors that are related to refusal of therapy and might be helpful for further application and improvement of cancer care.

Damage detection for beam structures based on local flexibility method and macro-strain measurement

Ting Yu Hsu,Wen I Liao,Shen Yau Hsiao 국제구조공학회 2017 Smart Structures and Systems, An International Jou Vol.19 No.4

Many vibration-based global damage detection methods attempt to extract modal parameters from vibration signals as the main structural features to detect damage. The local flexibility method is one promising method that requires only the first few fundamental modes to detect not only the location but also the extent of damage. Generally, the mode shapes in the lateral degree of freedom are extracted from lateral vibration signals and then used to detect damage for a beam structure. In this study, a new approach which employs the mode shapes in the rotary degree of freedom obtained from the macro-strain vibration signals to detect damage of a beam structure is proposed. In order to facilitate the application of mode shapes in the rotary degree of freedom for beam structures, the local flexibility method is modified and utilized. The proposed rotary approach is verified by numerical and experimental studies of simply supported beams. The results illustrate potential feasibility of the proposed new idea. Compared to the method that uses lateral measurements, the proposed rotary approach seems more robust to noise in the numerical cases considered. The sensor configuration could also be more flexible and customized for a beam structure. Primarily, the proposed approach seems more sensitive to damage when the damage is close to the supports of simply supported beams.

HOW DO MULTINATIONAL CORPORATIONS TRANSMIT SERVICE BRANDS TO THE LOCAL EMPLOYEES OF THE HOST COUNTRY? AN INTERNAL MARKETING MECHANISM APPROACH

Chan Hsiao,Yi-Hsuan Lee,Yuh-Ting Chih 글로벌지식마케팅경영학회 2014 Global Marketing Conference Vol.2014 No.11

This research tends to answer the following question: How do multinational corporations transmit their service brand to the local employees of the host country? Service brand has been discussed from the point of internal marketing, which ensures that employees can demonstrate the authentic value of the service brand in their attitudes and behaviors. However, when a corporation attempts to transmit the service brand across borders, there needs to be a balance between globalization and localization. This research intends to build a systematic internal marketing mechanism from the viewpoint of internal marketing, international service branding and subsidiary brand-specific transformational leadership. This study uses both qualitative and quantitative methods to conduct an in-depth case study and questionnaire survey. This research provides the following theoretical and managerial contributions. Firstly, it proposes a systematic internal marketing mechanism to transmit the service brand across international borders. This includes a brand-specific leadership with cultural sensitivity, a brand norm positively led by the leader and an organizational learning system, which influences the practice of the brand norms. Secondly, in order to transmit the international service brand successfully, this paper argues that subsidiaries’ leaders should have cultural sensitivity and demonstrate a brand-specific transformational leadership style. Thirdly, the paper finds and verifies that brand-specific transformational leadership has a positive effect on the brand norms and organizational learning, which in turn affect employee brand behavior and attitude toward the company’s core brand value. Managerially, the systematic internal marketing mechanism developed by this research can enlighten those service companies who intend to expand their international scope and ascertain their service brand value is transmitted accurately and executed locally.

Approximate Detection Method for Image Up-Sampling

( Ching-ting Tu ),( Hwei-jen Lin ),( Fu-wen Yang ),( Hsiao-wei Chang ) 한국인터넷정보학회 2014 KSII Transactions on Internet and Information Syst Vol.8 No.2

This paper proposes a new resampling detection method for images that detects whether an image has been resampled and recovers the corresponding resampling rate. The proposed method uses a given set of zeroing masks for various resampling factors to evaluate the convolution values of the input image with the zeroing masks. Improving upon our previous work, the proposed method detects more resampling factors by checking for some periodicity with an approximate detection mechanism. The experimental results demonstrate that the proposed method is effective and efficient.

HOW DO MULTINATIONAL CORPORATIONS TRANSMIT SERVICE BRANDS TO THE LOCAL EMPLOYEES OF THE HOST COUNTRY? AN INTERNAL MARKETING MECHANISM APPROACH

Chan Hsiao,Yi-Hsuan Lee,Yuh-Ting Chih 글로벌지식마케팅경영학회 2014 Global Marketing Conference Vol.2014 No.7

This research tends to answer the following question: How do multinational corporations transmit their service brand to the local employees of the host country? Service brand has been discussed from the point of internal marketing, which ensures that employees can demonstrate the authentic value of the service brand in their attitudes and behaviors. However, when a corporation attempts to transmit the service brand across borders, there needs to be a balance between globalization and localization. This research intends to build a systematic internal marketing mechanism from the viewpoint of internal marketing, international service branding and subsidiary brand-specific transformational leadership. This study uses both qualitative and quantitative methods to conduct an in-depth case study and questionnaire survey. This research provides the following theoretical and managerial contributions. Firstly, it proposes a systematic internal marketing mechanism to transmit the service brand across international borders. This includes a brand-specific leadership with cultural sensitivity, a brand norm positively led by the leader and an organizational learning system, which influences the practice of the brand norms. Secondly, in order to transmit the international service brand successfully, this paper argues that subsidiaries’ leaders should have cultural sensitivity and demonstrate a brand-specific transformational leadership style. Thirdly, the paper finds and verifies that brand-specific transformational leadership has a positive effect on the brand norms and organizational learning, which in turn affect employee brand behavior and attitude toward the company’s core brand value. Managerially, the systematic internal marketing mechanism developed by this research can enlighten those service companies who intend to expand their international scope and ascertain their service brand value is transmitted accurately and executed locally.

The Influence of Reconstruction Algorithm and Heart Rate on Coronary Artery Image Quality and Stenosis Detection at 64-Detector Cardiac CT

Yi-Ting Wang,Chung-Yi Yang,Jong-Kai Hsiao,Hon-Man Liu,Wen-Jen Lee,Yun Shen 대한영상의학회 2009 Korean Journal of Radiology Vol.10 No.3

Objective: We wanted to evaluate the impact of two reconstruction algorithms (halfscan and multisector) on the image quality and the accuracy of measuring the severity of coronary stenoses by using a pulsating cardiac phantom with different heart rates (HRs). Materials and Methods: Simulated coronary arteries with different stenotic severities (25, 50, 75%) and different luminal diameters (3, 4, 5 mm) were scanned with a fixed pitch of 0.16 and a 0.35 second gantry rotation time on a 64-slice multidetector CT. Both reconstruction algorithms (halfscan and multisector) were applied to HRs of 40-120 beats per minute (bpm) at 10 bpm intervals. Three experienced radiologists visually assessed the image quality and they manually measured the stenotic severity. Results: Fewer measurement errors occurred with multisector reconstruction (p = 0.05), a slower HR (p < 0.001) and a larger luminal diameter (p = 0.014); measurement errors were not related with the observers or the stenotic severity. There was no significant difference in measurements as for the reconstruction algorithms below an HR of 70 bpm. More nonassessable segments were visualized with halfscan reconstruction (p = 0.004) and higher HRs (p < 0.001). Halfscan reconstruction had better quality scores when the HR was below 60 bpm, while multisector reconstruction had better quality scores when the HR was above 90 bpm. For the HRs between 60 and 90 bpm, both reconstruction modes had similar quality scores. With excluding the nonassessable segments, both reconstruction algorithms achieved a similar mean measured stenotic severity and similar standard deviations. Conclusion: At a higher HR (above 90 bpm), multisector reconstruction had better temporal resolution, fewer nonassessable segments, better quality scores and better accuracy of measuring the stenotic severity in this phantom study. Objective: We wanted to evaluate the impact of two reconstruction algorithms (halfscan and multisector) on the image quality and the accuracy of measuring the severity of coronary stenoses by using a pulsating cardiac phantom with different heart rates (HRs). Materials and Methods: Simulated coronary arteries with different stenotic severities (25, 50, 75%) and different luminal diameters (3, 4, 5 mm) were scanned with a fixed pitch of 0.16 and a 0.35 second gantry rotation time on a 64-slice multidetector CT. Both reconstruction algorithms (halfscan and multisector) were applied to HRs of 40-120 beats per minute (bpm) at 10 bpm intervals. Three experienced radiologists visually assessed the image quality and they manually measured the stenotic severity. Results: Fewer measurement errors occurred with multisector reconstruction (p = 0.05), a slower HR (p < 0.001) and a larger luminal diameter (p = 0.014); measurement errors were not related with the observers or the stenotic severity. There was no significant difference in measurements as for the reconstruction algorithms below an HR of 70 bpm. More nonassessable segments were visualized with halfscan reconstruction (p = 0.004) and higher HRs (p < 0.001). Halfscan reconstruction had better quality scores when the HR was below 60 bpm, while multisector reconstruction had better quality scores when the HR was above 90 bpm. For the HRs between 60 and 90 bpm, both reconstruction modes had similar quality scores. With excluding the nonassessable segments, both reconstruction algorithms achieved a similar mean measured stenotic severity and similar standard deviations. Conclusion: At a higher HR (above 90 bpm), multisector reconstruction had better temporal resolution, fewer nonassessable segments, better quality scores and better accuracy of measuring the stenotic severity in this phantom study.

Comparison of the clinical outcomes of manual syringe infusion and pump infusion of distending media for hysteroscopic procedures: a preliminary report of a randomized controlled trial

( Wan-hua Ting ),( Sheng-mou Hsiao ) 대한산부인과학회 2016 대한산부인과학회 학술대회 Vol.102 No.-

Objectives: Adverse events associated with large volumes of distending media in hysteroscopic procedures can be life-threatening. Manual syringe infusion (MI) may have potential benefit according to our previous study [1]. The aim of this prospective randomized controlled study was to compare the clinical outcomes of MI and pump infusion (PI) of distending media for hysteroscopic procedures. Methods: Between December 2013 and April 2016, women who had hysteroscopic procedures and gave their informed written consent to participate in the study were randomly assigned to two groups: MI and PI. Women’s characteristics, the volume of distending media used, perioperative data, baseline and postoperative serum electrolyte levels and values of blood osmolarity were recorded. The Wilcoxon rank-sum test and the Chi-square test were employed for statistical analysis. Results: Baseline characteristics were similar between the groups (Table 1). The PI group was associated with a higher volume of infused fluid and collected fluid, and a lower postoperative pain score (Table 2). There is a tendency to be well correlated between the infused fluid and fluid deficit (Spearman’s rho = 0.21, p=0.058). Almost all serum electrolyte levels differed significantly between the baseline and postoperative values in both groups; however, no significant differences were noted between groups (Table 3). The postoperative sodium level (Spearman rho = -0.26, p=0.03, Table 4) and the change of potassium level (Spearman rho = -0.26, p=0.03, Table 5) were significantly correlated to the volume of fluid deficit. The postoperative phosphate level (Spearman rho = 0.31, p=0.03, Table 4) were significantly correlated to the volume of infused fluid. None have significant adverse effects. Conclusions: The MI method was associated with a lower volume of infused fluid than the PI method. Thus, the MI method may be superior to PI method in reducing media related hysteroscopic complications.