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| 1 | Design of Retarded Fractional Delay Differential Systems Using the Method of Inequalities显示文摘Methods based on numerical optimization are useful and effective in the design of control systems. This paper describes the design of retarded fractional delay differential systems (RFDDSs) by the method of inequalities, in which the design problem is formulated so that it is suitable for solution by numerical methods. Zakian s original formulation, which was first proposed in connection with rational systems, is extended to the case of RFDDSs. In making the use of this formulation possible for RFDDSs, the associated stability problems are resolved by using the stability test and the numerical algorithm for computing the abscissa of stability recently developed by the authors. During the design process, the time responses are obtained by a known method for the numerical inversion of Laplace transforms. Two numerical examples are given, where fractional controllers are designed for a time-delay and a heat-conduction plants. | Suchin Arunsawatwong Van Quang Nguyen | 2009 | International Journal of Automation and computing2009，6，1： | 3 |
| 2 | Stability of ZakianI MN recursions for linear delay differential equations显示文摘 | Suchin Arunsawatwong | 1998 | BIT Numerical Mathematics1998，，2： | 1 |
| 3 | Determining landslide susceptibility in Central Taiwan from rainfall and six site factors using the analyt- ical hierarchy process method 显示文摘 | Wu Chunhung Chen Suchin | 2009 | Geomorphology2009，112，34： | 1 |
| 4 | Computation of Peak Output for Inputs Restricted in L_2 and L_∞ Norms Using Finite Difference Schemes and Convex Optimization显示文摘Control systems designed by the principle of matching gives rise to problems of evaluating the peak output. This paper proposes a practical method for computing the peak output of linear time-invariant and non-anticipative systems for a class of possible sets that are characterized with many bounding conditions on the two-and/or the infinity-norms of the inputs and their derivatives. The original infinite-dimensional convex optimization problem is approximated as a large-scale convex programme deffned in a Euclidean space, which are associated with sparse matrices and thus can be solved effciently in practice. The numerical results show that the method performs satisfactorily, and that using a possible set with many bounding conditions can help to reduce the design conservatism and thereby yield a better match. | Warit Silpsrikul Suchin Arunsawatwong | 2009 | International Journal of Automation and computing2009，6，1： | 1 |
| 5 | Topical nitrogen mustard ointment with occlusion for Langerhans' cell histiocytosis of the scalp 显示文摘 | Treat JR Suchin KR James WD | 2003 | J Dermatolog Treat2003，14，1： | 1 |
| 6 | Quantifying the frequency of alloreactive T cells in vivo:new answers to an old question显示文摘 | Suchin E J Langmuir P B Palmer E Sayegh M H Wells A D Turka L A | 2001 | J Immunol2001，166，： | 1 |
| 7 | The Efficiency of aRisk Reduction Program for Debris-Flow Disasters-A CaseStudy of the Songhe Community in Taiwan显示文摘 | Chen Suchin Wu Chunyi Huang Botsung | 2010 | Natural Hazardsand Earth System Sciences2010，10，7： | 1 |
| 8 | Using Logistic Regression to Identify the Entrepreneurial Capability of Thai Agricultural Cooperatives Members on Their Farm Management显示文摘 | Chanchai Petchprapunkul Narong Koojaroenprasit, Rangsan Pitipanya Suchin Pleehajinda | 2016 | Cultural and Religious Studies2016，4，11： | 1 |
| 9 | Effect of Research Experience on Teachers’Per-ceptions of the Nature Science显示文摘 | SUCHIN K | 1993 | (3):391993，，3： | 1 |
| 10 | Increased interleukin 5 production in eosinophilic Sezary syndrome:regulation by interferon alfa and interleukin 12 显示文摘 | Suchin KR Cassin M Gotdeib SL | 2001 | J Am Acad Dermatol2001，44，1： | 1 |
| 11 | Quantifying the frequency of alloreactive T-cells in vivo: new answers to an old question显示文摘 | Langmuir PB Palmer E | 2001 | J Immunol2001，166，2： | 1 |
| 12 | Quantifying the frequency of alloreactive T cells in vivo: new answers to an old question显示文摘 | Suchin E J Langmuir P B Palmer E | 2001 | J Immunol2001，166，2： | 1 |
| 13 | Performance evaluation of image registration显示文摘 | SuChin Chen Coutre Evens M W Armato S G | 2000 | Engineering in Medicine and Biology Society2000，，4： | 1 |
| 14 | The ef-ficiency of artificial materials used for erosion control on steep slopes 显示文摘 | Chen Suchin Chang K T Wang Shihao | 2011 | Environmental Earth Sciences2011，62，1： | 1 |
| 15 | Photopheresis:clinical applications and mechanism of action显示文摘 | ROOK A H SUCHIN K R KAO D M | 1999 | J Investig Dermatol Symp Proc1999，4，1： | 1 |
| 16 | Simultaneous quantitative determination of amphetamines,ketamine,opiates and metabolites in human hair by gas chromatography/mass spectrometry显示文摘 | Wu Ya-Hsueh Lin Keh-Liang CHEN Suchin | 2008 | Rapid Communications in Mass Spectrometry2008，22，6： | 1 |
| 17 | Design of Non-rational MIMO Feedback Systems with Inputs and Outputs Satisfying Certain Bounding Conditions by Using Rational Approximants显示文摘When a feedback system has components described by non-rational transfer functions, a standard practice in designing such a system is to replace the non-rational functions with rational approximants and then carry out the design with the approximants by means of a method that copes with rational systems. In order to ensure that the design carried out with the approximants still provides satisfactory results for the original system, a criterion of approximation should be explicitly taken into account in the design formulation. This paper derives such a criterion for multi-input multi-output(MIMO) feedback systems whose design objective is to ensure that the absolute values of every error and every controller output components always stay within prescribed bounds whenever the inputs satisfy certain bounding conditions. The obtained criterion generalizes a known result which was derived for single-input single-output(SISO) systems; furthermore, for a given rational approximant matrix, it is expressed as a set of inequalities that can be solved in practice. Finally, a controller for a binary distillation column is designed by using the criterion in conjunction with the method of inequalities. The numerical results clearly demonstrate that the usefulness of the criterion in obtaining a design solution for the original system. | Suchin Arunsawatwong Tadchanon Chuman | 2017 | International Journal of Automation and computing2017，14，3： | 0 |
| 18 | Intestinal helminth infections and associated risk factors among adults in the Lao People’s Democratic Republic显示文摘Background Helminthiases are highly endemic in Southeast Asia,including the Lao People’s Democratic Republic(Lao PDR).This study aimed to assess the current intestinal helminth infections and the associated risk factors among adults across the Lao PDR.Methods A cross-sectional survey was conducted in 165 villages across 17 provinces and the Vientiane Capital,Lao PDR.A multi-stage sampling method was employed to select the adult study participants(≥18 years).Data collection included(1)interview of the study participants,(2)physical measurements,and(3)a fve gram of stool sample from each study participant was collected and preserved in 10%formalin solution for intestinal helminth detection using formalin-ether concentration technique(FECT).Descriptive analysis was used to describe the socio-demographic characteristics of study participants and the prevalence of intestinal helminth infections.Logistic regressions were applied to test the association between intestinal helminth infection and individual risk factors.A P-value below 0.05 was considered statistically signifcant.Results A total of 2800 study participants were enrolled.Their average age was 46.0 years;57.8%were female.Overall,30.9%,8.6%and 1.5%of study participants were infected with one,two,or three diferent intestinal helminth species,respectively.Among the study participants 21.6%were infected with hookworm,18.8%with Opisthorchis viverrini-like(Ov-like)infection,4.8%with Strongyloides stercoralis,2.3%with Ascaris lumbricoides,1.5%with Trichuris trichiura,and 3.3%with Taenia spp.Ov-like infection was of high prevalence in the southern(28.8%)and central(21.3%)provinces,while hookworm(26.3%),A.lumbricoides(7.3%),T.trichiura(3.1%),and Taenia spp.(4.2%)were prevalent in the northern provinces.Risk analysis showed that men were more likely to be infected with hookworm[adjusted odds ratio(aOR)=1.2,P=0.019].The Lao-Tai ethnic group had a 5.2-times(P<0.001)higher chance of having Ov-like infection than the minorities.Possession of toilet facility at home was associated with reduced odds for Ov-like(aOR=0.4,P<0.001)and hookworm(aOR=0.6,P<0.001)infections.Conclusions Our study provides a nationwide update of the intestinal helminth prevalence among adults in Lao PDR.To the best of our knowledge,this is the frst Lao nationwide survey on intestinal helminth infections and risk factors in adults.It provides crucial information for national control programs for intestinal helminth infections in Lao PDR. | Sengaloun Phonekeo Sengchanh Kounnavong Manithong Vonglokham Latsamy Siengsounthone Anousin Homsana Sascha Gummin Penelope Vounatsu Prawat Nittiyanant Suchin Worawichawong Wichai Aekplakorn Peter Odermatt Somphou Sayasone | 2023 | Infectious Diseases of Poverty2023，12，3： | 0 |
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