Browsing by Author "Hsieh, SY"

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Characterization of soft rocks in Taiwan
(2000)
Huang, AB
;
Liao, JJ
;
Pan, YW
;
Cheng, MH
;
Hsieh, SY
A research project was carried out to enhance our capabilities in establishing the engineering properties of the weak sedimentary rocks in northern and central regions of Western Taiwan. Improved field sampling and testing techniques were developed and a series of in situ and laboratory experiments were performed. These included modifications of rock coring procedure, field pressuremeter, PS logging, Lugeon tests and laboratory triaxial tests. A test site was developed where rock cores were taken and a series of field experiments performed. The results from the field and laboratory experiments were analyzed and compared. An interpretation procedure in establishing the rock properties was proposed. This paper describes the experience gained in this series of experiments and discusses its implications in the characterization of the soft rocks.
Pressuremeter tests in poorly cemented weak rocks
(1999)
Huang, AB
;
Pan, IW
;
Liao, JJ
;
Wang, CH
;
Hsieh, SY
A series of pre-bored pressuremeter tests (PMT) were performed in relatively young, weak rock deposits at several test sites in Taiwan. Equipment used included the Menard type tri-cell pressuremeter and Cambridge high-pressure dilatometer. The test data were interpreted using some of the existing empirical and a newly developed analytical procedure. According to the interpretations of PMT data, the tested weak rock should behave as a highly overconsolidated cohesive material. This is contrary to some of the available laboratory experimental results. A 3-surface numerical scheme has been developed to simulate pressuremeter expansion in weak rock with unload-reload cycles. Preliminary results have indicated that the numerical scheme is capable of capturing the important features of pressuremeter expansion in a weak sandstone.
Simple and efficient per-O-acetylation of carbohydrates by lithium perchlorate catalyst
(2004-09-27)
Lu, KC
;
Hsieh, SY
;
Patkar, LN
;
Chen, CT
;
Lin, CC
Lithium perchlorate is demonstrated to be a highly efficient and convenient catalyst for the per-O-acetylation of various saccharides with excellent yields. (C) 2004 Elsevier Ltd. All rights reserved.
Synthesis of a carboxyl linker containing P-k trisaccharide
(2005-01-17)
Hsieh, SY
;
Jan, MD
;
Patkar, LN
;
Chen, CT
;
Lin, CC
An efficient synthesis of a p(k) trisaccharide with a functionalized side arm at the reducing end for conjugation to other molecules is presented. Construction of the pk trisaccharide with a high alpha-selectivity was achieved in high yield by coupling a reactive galactosyl phosphite donor with a lactosyl acceptor. (C) 2004 Elsevier Ltd. All rights reserved.
Synthetic approach to ellipticine.
(2005-03-13)
Ho, TL
;
Hsieh, SY
;
應用化學系
;
Department of Applied Chemistry