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Search Results: 1 - 10 of 42893 matches for " Jeng-Lian Lin "
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Water Scrubbing for Removal of Hydrogen Sulfide (H2S) Inbiogas from Hog Farms  [PDF]
Cheng-Chang Lien, Jeng-Lian Lin, Ching-Hua Ting
Journal of Agricultural Chemistry and Environment (JACEN) , 2014, DOI: 10.4236/jacen.2014.32B001
Abstract:

Biogas from anaerobic digestion of biological wastes is a renewable energy resource. H2S in biogas may cause corrosion or other damage to engines if it is not removed from the gas before utilization. Because the solubility of H2S in water is higher than methane, water can be used as an adsorbent to remove H2S from biogas. A simple water scrubbing column to reduce the H2S content was designed in this study. The biogas purification process took place in the scrubbing column with water where the gas was continuously fed from the bottom of the column through the diffuser which could produce bubbles. The biogas bubbles and the water can accelerate the reaction inside the column. The water in the column was circulated by means of a pump. H2S content in raw biogas was about 6000 ppm. First, the efficiencies of H2S removal for different biogas flow rate and water level were conducted at 30 and 90 sec. Second, the efficiencies of H2S removal with water recycling system were induced. The results showed that the concentration of H2S in biogas decreased significantly with water level and increased with biogas flow rate through the water scrubbing. It was an effective technique for removing H2S in a short operation time, but absorption capability of water declined rapidly with time. To maintain high absorption rate, water scrubbing after adsorption needed to be replaced or regenerated. The water scrubbing system is a simplest and cheapest method. This work is investigated the feasibility of water scrubbing system and its application to a small hog farm.

Probability-Based Seismic Performance Evaluation for Buildings  [PDF]
Jeng-Hsiang Lin
World Journal of Engineering and Technology (WJET) , 2016, DOI: 10.4236/wjet.2016.43C002
Abstract:
Recent developments in earthquake engineering indicate that probabilistic seismic risk analysis (PSRA) is becoming increasingly useful for the evaluation of structural per-formance in accordance with building codes. In recent years, the field of seismic resis-tance design has been undergoing a critical shift in focus from strength to performance. However, current earthquake resistant design procedures do not relate building performance to probability. A lack of sufficient empirical data has highlighted gaps in this research. This study integrated results from the analysis of structural fragility and seismic hazard in Taiwan to perform PSRA to examine the effectiveness of building code in mitigating the risks associated with earthquakes. Factors taken into account included the effect of construction materials, building height, and building age. The results of this study show that the probability of exceeding damage associated with the CP level in buildings of light steel, pre-cast concrete, and masonry, exceeds 2%. These buildings fail to meet the performance objectives outlined in FEMA-273.
Nonexistence of Nontrivial Solutions with Decay Order for a Biharmonic P-Laplacian Equation and System  [PDF]
Jeng-Eng Lin
Applied Mathematics (AM) , 2017, DOI: 10.4236/am.2017.87072
Abstract: We use the Morawetz multiplier to show that there are no nontrivial solutions of certain decay order for a biharmonic equation with a p-Laplacian term and a system of coupled biharmonic equations with p-Laplacian terms in the entire Euclidean space.
Do Idiosyncratic Risks in Multi-Factor Asset Pricing Models Really Contain a Hidden Non-Diversifiable Factor? A Diagnostic Testing Approach  [PDF]
Jau-Lian Jeng, Qingfeng Wilson Liu
Journal of Mathematical Finance (JMF) , 2012, DOI: 10.4236/jmf.2012.23028
Abstract: This paper employs a new approach to analyze potentially omitted non-diversifiable factors in the idiosyncratic risks from multi-factor asset pricing models. It is shown that if there is an omitted non-diversifiable hidden factor, the idiosyncratic risks will contain persistent cross-sectional memory. An extended Rescaled Variance test generalized from L. Giraitis, P. Kokoszaka, R. Leipus, and G. Teyssiere [1] with finite forecast horizon is provided to investigate the cross-sectional memory of forecast errors in multifactor pricing models. Under the null hypothesis that idiosyncratic risks contain only short memory when there is no hidden non-diversifiable factor, we demonstrate that the extendedT-sample Rescaled Variance test statistic approximates a functional of weighted Brownian Bridge, which is distributed asymptotically as the T-sample Watson’s statistic presented by Maag [2]. Using this approach, our empirical tests that compare forecast errors from the CAPM and Fama-French [3] model with the excess returns of 1391 firms indicate that there is a strong likelihood that the CAPM may require further identification of hidden non-diversifiable factor(s). Yet, there lacks convincing evidence that the Fama-French [3] model has an omitted non-diversifiable factor in idiosyncratic risks.
Motivations and reasons for women attending a Breast Self-Examination training program: A qualitative study
Rea-Jeng Yang, Lian-Hua Huang, Yeu-Sheng Hsieh, Ue-Lin Chung, Chiun-Sheng Huang, Herng-Dar Bih
BMC Women's Health , 2010, DOI: 10.1186/1472-6874-10-23
Abstract: A descriptive study was conducted using small group and individual in-depth interviews to collect data, and using thematic analysis and constant comparison techniques for data analysis.It was found that a sense of self-security became an important motivator for entering BSE training. The satisfaction in obtaining a sense of self-security emerged as the central theme. Furthermore, a ladder motivation model was developed to explain the participants' motivations for entering BSE training. The patterns of motivation include opportunity taking, clarifying confusion, maintaining health, and illness monitoring, which were connected with the risk perception for breast cancer.We recognize that the way women decide to attend BSE training is influenced by personal and social factors. Understanding the different risk assessments women rely on in making their health decisions is essential. This study will assist researchers and health professionals to gain a better understanding of alternative ways to deal with breast health, and not to be limited by the recommendations of the health authorities.As a means for early detection of breast cancer, breast self-examination (BSE) has shown that cancer may be discovered at anytime. Most women accept the idea that breast cancer may happen to any of them, yet at the same time, some of them fear discovering the disease. Although researchers have studied the determinants of BSE, there has been relatively little understanding about the motivation of women to learn breast self-examination.A more in-depth exploration of women's experiences in relation to BSE might provide an insight into their behavioral choices. Therefore, we have attempted to explore the reasons why women want to learn BSE skills, as well as explore and illustrate the patterns of how women make the decision to learn this technique. The research questions involved were 2-fold: (a) what are the overall approaches that women decide to enter a BSE training program? (b) what are
Role of proton pump inhibitors in the management of peptic ulcer bleeding
Hwai-Jeng Lin
World Journal of Gastrointestinal Pharmacology and Therapeutics , 2010,
Abstract: Peptic ulcer bleeding is a serious medical problem with significant morbidity and mortality. Endoscopic therapy significantly reduces further bleeding, surgery and mortality in patients with bleeding peptic ulcers and is now recommended as the first hemostatic modality for these patients. The efficacy of large-dose proton pump inhibitor (PPI) therapy in reducing re-bleeding after endoscopic therapy has been supported by evidence derived from randomized controlled trials. It may be premature to recommend small-dose intravenous injection PPI after endoscopic hemostasis in patients with bleeding ulcers. An updated systematic review shows that PPI therapy before endoscopy significantly reduces the proportion with major stigmata and requirement for endoscopic therapy at index endoscopy. Some studies show that there is no significant difference between oral and intravenous PPIs in raising intragastric pH. However, clinical data is lacking in patients with peptic ulcer bleeding to date.
Accessing Chinese Materials: Some Conceptual Issues in Bibliographic Control
  Lin Hwey Jeng
Journal of Library and Information Science , 1989,
Abstract: 頁次:138-162
Extension of Long-Staehler’s Model on Optimal Export Tax in the Case of Privatization  [PDF]
Tsaur-Chin Wu, Jeng-Wen Lin
Modern Economy (ME) , 2015, DOI: 10.4236/me.2015.65053
Abstract: This paper extends Long and Staehler’s model and studies optimal export tax in the case of privatization. The authors find that optimal export tax increases with the degree of privatization if product differentiation exists. The authors provide a counterexample to Long and Staehler’s model and reach a different conclusion. This finding emphasizes that the relationship between the variables of optimal export tax and conditions of asymmetric cost and product differentiation is quite different from Long and Staehler’s model. Since optimal export tax is endogenous in the model, the authors also consider the potential endogeneity of privatization decision, which is an important issue in a traditional mixed duopoly analysis.
Applying Analytic Network Process to the Selection of Construction Projects  [PDF]
Jeng-Hsiang Lin, Chien-Jou Yang
Open Journal of Social Sciences (JSS) , 2016, DOI: 10.4236/jss.2016.43007
Abstract:

Selecting a construction project is relatively complex as it involves multi-criteria decision-making (MCDM). To solve this problem, this study used the fuzzy Delphi method to identify six key factors of influence on selection outcomes and established evaluation criteria based on these factors. After employing analytic network process (ANP) to identify relationships between the objective, the evaluation criteria and the candidate projects, this study developed a decision-making model to resolve the difficulty of selecting an optimum construction project and conducted weighted analysis of the candidate projects using the quantitative procedures of ANP. Lastly, an empirical case study was used to verify the proposed method. The results of this study show that ANP can be used to build an effective decision-making model capable of analyzing candidate construction projects and selecting the optimal one.

Combined Effects of Thermal Diffusion and Diffusion-Thermo Effects on Transient MHD Natural Convection and Mass Transfer Flow in a Vertical Channel with Thermal Radiation  [PDF]
Isah Bala Yabo, Basant Kumar Jha, Jeng-Eng Lin
Applied Mathematics (AM) , 2016, DOI: 10.4236/am.2016.718185
Abstract: We study the nonlinear coupled evolution equations which model the transient MHD natural convection and mass transfer flow of viscous, incompressible and electrically conducting fluid between two infinite vertical plates in the presence of the transversal magnetic field, thermal radiation, thermal diffusion and diffusion-thermo effects. Both analytical and numerical methods are used for this study.
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