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Hong Kong Leasehold Land Tenure and Boundary System
Tang Hong-wai, Conrad 한국국토정보공사 2010 지적과 국토정보 Vol.40 No.1
This article gives an introduction to the law and history of the leasehold land tenure in Hong Kong, states its merits and shortcomings as compared to other advanced deeds systems, and illustrates the key parts of the registration documents with particular attention on land boundaries. Recent legislative improvements and further development are discussed.
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Constant Power Drying Rate Tester: Measurement of Water Evaporation from Textiles with Heat
Kam-Hong Chau,Ka-Po Maggie Tang,Nga-Fong Lam,Chi-wai Kan 한국섬유공학회 2018 Fibers and polymers Vol.19 No.10
Water evaporation from textiles is important for wear comfort, especially for sportswear, casual wear and underwear. Constant Power Drying Rate Tester (CPDRT) offers fast (< 30 minutes) and versatile measurement of drying rate of fabrics. The operating temperature and water supply rate of CPDRT are adjustable to simulate required skin temperature and sweat rate, respectively. Change in weight of the fabric is continuously measured on a heated plate. This allows real-time observation of the entire drying process when fabric is placed on a heated plate supplied with constant power. This provides comprehensive information which is useful for fabric development. A set of 28 fabrics was tested by CPDRT. The temperature of bare sample stage is 37 oC and water delivery rate is set at 10 ml/hr. The key parameter, drying rate (DRCP), ranges from 0.32 to 1.69 ml/hr. Statistical tests are conducted to verify the validity and repeatability of CPDRT.
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Magnitude Estimation Approach for Assessing Stickiness Sensation Perceived in Wet Fabrics
Ka-Po Maggie Tang,Kam-Hong Chau,Chi-wai Kan,Jin-tu Fan 한국섬유공학회 2018 Fibers and polymers Vol.19 No.11
Sweating will trigger stickiness sensation and affecting sensorial comfort of wearer. This study aims at assessing stickiness sensation perceived in wetted fabrics utilizing the Body Movement Simulator (BMS). BMS was built to drive the samples to and fro subject’s volar forearms, providing repeatable fabric movement. Assessors were asked to compare the sample with the reference and assign numerical value to the sample using the magnitude estimation approach. 22 types of fabrics with different constructional parameters and fiber content were assessed by 23 assessors. Statistical analysis shows that within-judge reliability and between-judge consistency are satisfactory, and significant between-fabric differences are observed, demonstrating that both experimental method and assessor panel are reliable. The results reveal that thicker fabrics with higher absorption capacity and less contact area with skin contribute to weaker stickiness sensation. The perceived stickiness is highly related to water content and saturation level of samples, but poorly related to its surface friction and roughness in dry condition. This subjective assessment method is useful for assessing the stickiness sensation in textiles especially for sportswear, intimate apparel or hygiene products.
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박재형,Margaret M. Park,Samar Farha,Jacqueline Sharp,Erika Lundgrin,Suzy Comhair,Wai Hong Tang,Serpil C. Erzurum,James D. Thomas 한국심초음파학회 2015 Journal of Cardiovascular Imaging (J Cardiovasc Im Vol.23 No.2
Background: New 2-dimensional strain echocardiography enables quantification of right ventricular (RV) mechanics byassessing global longitudinal strain of RV (GLSRV) in patients with pulmonary arterial hypertension (PAH). However, theprognostic significance of impaired GLSRV is unclear in these patients. Methods: Comprehensive echocardiography was performed in 51 consecutive PAH patients without atrial fibrillation (40females, 48 ± 14 years old) with long-term follow-up. GLSRV was measured with off-line with velocity vector imaging (VVI,Siemens Medical System, Mountain View, CA, USA). Results: GLSRV showed significant correlation with RV fractional area change (r = -0.606, p < 0.001), tricuspid annular planesystolic excursion (r = -0.579, p < 0.001), and RV Tei index (r = 0.590, p < 0.001). It showed significant correlations with pulmonaryvascular resistance (r = 0.469, p = 0.001) and B-natriuretic peptide concentration (r = 0.351, p = 0.012). During a clinical followuptime (45 ± 15 months), 20 patients experienced one or more adverse events (12 death, 2 lung transplantation, and 15 heartfailure hospitalization). After multivariate analysis, age [hazard ratio (HR) = 2.343, p = 0.040] and GLSRV (HR = 2.122, p =0.040) were associated with adverse clinical events. Age (HR = 3.200, p = 0.016) and GLSRV (HR = 2.090, p = 0.042) were alsosignificant predictors of death. Impaired GLSRV (≥ -15.5%) was associated with lower event-free survival (HR = 4.906, p = 0.001)and increased mortality (HR = 8.842, p = 0.005). Conclusion: GLSRV by VVI showed significant correlations with conventional echocardiographic parameters indicating RVsystolic function. Lower GLSRV (≥ -15.5%) was significantly associated with presence of adverse clinical events and deaths inPAH patients.
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