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Carbonyl compounds in dining areas,kitchens and exhaust streams in restaurants with varying cooking methods in Kaohsiung,Taiwan

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Journal of Environmental Sciences 2016年第3期28卷 218-226页

作者： Jen-hsuan Cheng Yi-Shiun Lee Kang-Shin Chen Institute of Environmental Engineering "National" Sun Yat-Sen University

Eighteen carbonyl species in C_1-C_（10） were measured in the dining areas,kitchens and exhaust streams of six different restaurant types in Kaohsiung,southern *** results in the dining areas show that Japanese barbecue（45.06 ppb） had the highest total carbonyl concentrations（sum of 18 compounds）,followed by Chinese hotpot（38.21 ppb）,Chinese stir-frying（8.99 ppb）,Western fast-food（8.22 ppb）,Chinese-Western mixed style（7.38 ppb）,and Chinese buffet（3.08 ppb）,due to their different arrangements for dining and cooking spaces and different cooking *** average,low carbon-containing species（C_1-C_4）,e.g.,formaldehyde,acetaldehyde,acetone and butyraldehyde were dominant and contributed 55.01%-94.52%of total carbonyls in the dining areas of all ***,Chinese-Western mixed restaurants（45.48 ppb） had high total carbonyl concentrations in kitchens mainly because of its small kitchen and poor ***,high carbon-containing species（C_5-C_（10）） such as hexaldehyde,heptaldehyde and nonanaldehyde（16.62%-77.00%of total carbonyls） contributed comparatively with low carbon-containing compounds（23.01%-83.39%of total carbonyls） in ***,Chinese stir-frying（132.10 ppb）,Japanese barbecue（125.62 ppb）,Western fast-food（122.67 ppb）,and Chinese buffet（119.96 ppb） were the four restaurant types with the highest total carbonyl concentrations in exhaust streams,indicating that stir-frying and grilling are inclined to produce polluted *** risk assessments indicate that Chinese hotpot and Japanese barbecue exceeded the limits of cancer risk（10^（-6）） and hazard index（=1）,mainly due to high concentrations of *** other four restaurants were below both limits.

关键词： Carbonyl compounds Restaurant Exhaust stream Health effect

Acute liver injury in a COVID-19 infected woman with mild symptoms:A case report

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World Journal of Clinical Cases 2023年第2期11卷 472-478页

作者： Pei-hsuan Lai Dah-Ching Ding Department of Obstetrics and Gynecology Hualien Tzu Chi HospitalHualien 970Taiwan

BACKGROUND Coronavirus disease 2019(COVID-19)has spread rapidly,resulting in a pandemic in January *** studies have focused on the natural history and consequences of acute liver injury(ALI)in mild or asymptomatic COVID-19 patients,manifested by elevated aminotransferase *** is usually expected for severe COVID-19 ***,we present a COVID-19 case with mild respiratory symptoms and significantly elevated alanine aminotransferase(ALT)and aspartate aminotransferase(AST)*** SUMMARY A 60-year-old woman without medical history or chronic illness received three COVID-19 vaccinations since the start of the *** patient was infected with severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)and presented with mild symptoms on July 12th,***-recovery,she underwent an examination at our hospital on August 30th,*** and ALT levels in the liver function test were 207 U/L(normal value<39,5.3-fold increase)and 570 U/L(normal value<52,10.9-fold increase),*** patient was diagnosed with ALI,and no treatment was *** following week,blood tests showed a reduction in both levels(ALT 124 U/L,AST 318 U/L).Two weeks later,AST and ALT levels had decreased to near the expected upper limits(ALT 40 U/L,AST 76 U/L).CONCLUSION Clinicians should pay attention to liver function testing during COVID-19 recovery regardless of the disease’s severity.

关键词： COVID-19 Hepatitis Pneumonia Aspartate aminotransferase Alanine aminotransferase Case report

K-theoretic classification of fermionic operator mixings in holographic conformal field theories

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Science Bulletin 2016年第14期61卷 1115-1125页

作者： shih-Hao Ho Feng-Li Lin Department of Physics Taiwan Normal University

In this paper, we apply the K-theory scheme of classifying the topological insulators/superconductors to classify the topological classes of the massive multi-flavor fermions in anti-de Sitter(Ad S) space. In the context of Ad S/conformal field theory(CFT) correspondence, the multi-flavor fermionic mass matrix is dual to the pattern of operator mixing in the boundary CFT. Thus, our results classify the possible patterns of operator mixings among fermionic operators in the holographic CFT.

关键词： Topological insulators/superconductorsSPT phases AdS/CFT correspondence K-theoretical classification Bulk/Edgecorrespondence Holographic CFT

Stabilization and H-infinity control for interval descriptor systems

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控制理论与应用（英文版） 2010年第3期8卷 344-350页

作者： shih-Wei KAU Department of Electrical Engineering National Kaohsiung University of Applied Sciences

This paper considers H-infinity control problem for interval descriptor systems. Necessary and sufficient LMI-based conditions are derived for quadratic-like H-infinity control analysis of interval descriptor systems. Using the analysis result, two types of feedback controllers are designed so that the closed-loop interval descriptor systems are admissible with H-infinity-norm less than a prescribed value. To the best of the authors＇s knowledge, this is the first paper to deal with the H-infinity control problem of interval descriptor systems in the literature.

关键词： Interval descriptor systems Linear matrix inequalities Robust H-infinity control

THE DEFECT ITERATION OF THE FINITE ELEMENT FOR ELLIPTIC BOUNDARY VALUE PROBLEMS AND PETROV-GALERKIN APPROXIMATION

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Journal of Computational Mathematics 1998年第2期16卷 152-164页

作者： Gao, JB Yang, YD shih, TM Huazhong Univ Sci & Technol Dept Math Wuhan 430074 Peoples R China Guizhou Normal Univ Dept Math Guiyang 550001 Peoples R China Hong Kong Polytech Univ Dept Math Appl Hong Kong Peoples R China

In this paper we introduce a Petrov-Galerkin approximation model to the solution of linear and semi-linear elliptic boundary value problems in which piecewise quadratic polynomial space and piecewise linear polynomial space are used as the shape function space and the test function space, respectively. We prove that the approximation order of the standard quadratic finite element can be attained in this Petrov-Galerkin model. Based on the so-called 'contractivity' of the interpolation operator, we further prove that the defect iterative sequence of the linear finite element solution converge to the proposed Petrov-Galerkin approximate solution.

关键词： Petrov-Galerkin approximation defect iteration correction interpolation operator

FINITE ELEMENT ANALYSIS OF A LOCAL EXPONENTIALLYFITTED SCHEME FOR TIME-DEPENDENTCONVECTION-DIFFUSION PROBLEMS

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Journal of Computational Mathematics 1999年第3期17卷 225-232页

作者： Yue, XY Jiang, LS shih, TM Suzhou Univ Dept Math Suzhou 215006 Peoples R China Tongji Univ Inst Math Shanghai 200092 Peoples R China Hong Kong Polytech Univ Dept Appl Math Hong Kong Hong Kong

In [16], Stynes and O' Riordan(91) introduced a local exponentially fitted finite element (FE) scheme for a singularly perturbed two-point boundary value problem without turning-point. An E-uniform h(1/2)-order accuracy was obtain for the epsilon-weighted energy norm. And this uniform order is known as an optimal one for global exponentially fitted FE schemes (see [6, 7, 12]). In present paper, this scheme is used to a parabolic singularly perturbed problem. After some subtle analysis, a uniformly in epsilon convergent order h\ln h\(1/2) + tau is achieved (h is the space step and tau is the time step), which sharpens the results in present literature. Furthermore, it implies that the accuracy order in [16] is actuallay h\ln h\(1/2) rather than h(1/2).

关键词： singularly perturbed exponentially fitted uniformly in epsilon convergent Petrov-Galerkin finite element method

Enhancing the efectiveness of film cooling

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航空动力学报 2007年第4期22卷 531-539页

作者： Tom I-P shih Sangkwon Na Department of Aerospace Engineering Iowa State University Ames Iowa 50011 U. S. A

Advanced gas turbine stages are designed to operate at increasingly higher inlet temperatures to increase thermal efficiency and specific power *** maintain durability and reasonable life,film cooling is needed in addition to internal cooling,especially for the first *** cooling lowers material temperature by forced convection inside film-cooling holes and by forming a layer of coolant about component surfaces to insulate them from the hot ***,each cooling jet forms a pair of counter-rotating vortices that entrains hot gas and causes the film-cooling jet to lift off from the surface that it is intended to *** paper gives an overview of efforts to enhance the effectiveness of *** paper also describes two new design *** design concept seeks to minimize the entrainment of hot gases underneath of film-cooling jets by using flow-aligned *** other design concept shifts the interaction between the approaching hot gas and the cooling jet to occur further above the surface by using an upstream *** both design concepts,computational fluid dynamics results are presented to examine their usefulness in enhancing film-cooling effectivenes

关键词：航空动力推进系统薄雾冷却冷却效率燃气轮机流体动力学

Drug Loading on Microneedles

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Advances in Chemical Engineering and Science 2019年第2期9卷 204-222页

作者： Meng-hsuan hsiao Hsiu-Feng Ye Ta-Jo Liu Jane Wang Department of Chemical Engineering National Tsing Hua University Taiwan

An experimental study was carried out to investigate the amount of drugs loaded on microneedles. The microneedles were made with poly (lactic acid). Aqueous poly (vinyl alcohol) solutions were prepared as drug solutions. Two drug loading approaches, i.e., dropping and dipping, were examined. It was found that capillary number is the only relevant dimensionless group for the two methods. For the dropping approach, dried drugs will spread near the bottom of a microneedle patch provided the surface tension is low. As for the dipping approach, both a single microneedle and an array of nine microneedles were examined. For a single microneedle, high capillary rises before pulling and pulling speed are two key factors to increase the drug loading volume. For an array of microneedles, the effect of capillary rise owing to the interaction between microneedles would increase the drug loading volume several times higher than a single microneedle of the same dimension.

关键词： Microneedle Drug Loading Dropping Dipping Capillary Number Capillary Rise

Perforation of the duodenum by an ingested toothbrush

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World Journal of Gastroenterology 2008年第27期14卷 4410-4412页

作者： hsiao-Hsiang Chao Tzu-Chieh Chao Division of General Surgery Department of Surgery Chang Gung Memorial Hospital at Linkou Kweishan Department of Surgery Chang Gung Memorial Hospital at Linkou and Chang Gung University School of Medicine Kweishan

We report a rare case of duodenal perforation caused by an ingested 12-cm long toothbrush handle. A 22-year-old female presented with intermittent epigas- tric pain for 6 d after swallowing a broken toothbrush. The swallowed toothbrush could not be removed from the second portion of the duodenum by endoscopy. Laparotomy revealed a perforation in the anterior wall of the duodenal bulb. The toothbrush was removed via the perforation which was debrided and closed. There were no postoperative complications.

关键词： Duodenum Endoscopy Laparotomy Perforation Toothbrush