http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Flexural Behaviour of Reinforced Lightweight Foamed Mortar Beams and Slabs
Yee Ling Lee,Jee Hock Lim,Siong Kang Lim,Cher Siang Tan 대한토목학회 2018 KSCE JOURNAL OF CIVIL ENGINEERING Vol.22 No.8
This paper presents the experimental results on flexural behaviour of reinforced concrete beams and slabs made of lightweightfoamed mortar with density ranged from 1700 to 1800 kg/m3. Beam specimens consist of seven lightweight foamed mortar beamsand three normal weight concrete beams acted as the control sample. Whereas, slab specimens contain two lightweight foamedmortar slabs and two normal weight concrete slabs. Four types of lightweight foamed mortar with different cement-sand ratios andwater-cement ratios designated as LW-1, LW-2, LW-3 and LW-4 were produced in order to achieve targeted compressive strength of20 MPa at 28 days for structural usage. The results showed that reinforced lightweight foamed mortar beams sustained about 8% to34% lower ultimate load as compared to normal weight reinforced concrete with same reinforcement configuration. However,lightweight foamed mortar slab sustained higher ultimate load, averagely 18% as compared to normal weight slab. Apart from that, itwas observed that the both reinforced lightweight foamed mortar beams and slabs were weak in resisting shear forces nonethelessflexural failure cannot be ignored entirely due to the presence of excessive yielding of the steel strain data.
Facile preparation of superhydrophobic thin films using non-aligned carbon nanotubes
Goh, Yee-Miin,Han, Kok Deng,Tan, Lling-Lling,Chai, Siang-Piao Techno-Press 2014 Advances in nano research Vol.2 No.4
A simple preparation method on creating superhydrophobic surface using non-aligned carbon nanotubes (CNTs) was demonstrated. Superhydrophobic CNT thin films were prepared by doping a sonicated mixture of CNTs and chloroform onto a glass slide. Water contact angles of the CNT thin films were measured using a contact angle goniometer. The thin films were characterized using laser microscope and scanning electron microscope. Experimental results revealed that the highest average contact angle of $162{\pm}2^{\circ}$ was achieved when the films' thickness was $1.628{\mu}m$. The superhydrophobic surface was stable as the contact angle only receded from $162{\pm}2$ to $157{\pm}2^{\circ}$ after 10 min under normal atmospheric condition.
Savitha Ramachandran,Yee-Siang Ong,Andrew YH Chin,In-Chin Song,Bien-Keem Tan 대한성형외과학회 2014 Archives of Plastic Surgery Vol.41 No.3
Microsurgery training in Singapore began in 1980 with the opening of the Experimental Surgical Unit. Since then, the unit has continued to grow and have held microsurgical training courses biannually. The road to becoming a full-fledged reconstructive surgeon requires the mastering of both microvascular as well as flap raising techniques and requires time, patience and good training facilities. In Singapore, over the past 2 decades, we have had the opportunity to develop good training facilities and to refine our surgical education programmes in reconstructive microsurgery. In this article, we share our experience with training in reconstructive microsurgery.
Teo, Wan-Lin,Ong, Yee-Siang,Tan, Bien-Keem Korean Society of Plastic and Reconstructive Surge 2012 Archives of Plastic Surgery Vol.39 No.6
Current treatments for hidradenitis suppurativa (HS) include prolonged courses of antibiotics, retinoids, immunosuppressants, and biologics. Severe cases that are resistant to prolonged medical treatment pose a therapeutic challenge. We propose radical excision and lateral thoracic flap reconstruction as a treatment option for such cases. In our experience with two patients, good aesthetic and functional outcomes were achieved, with a high level of patient satisfaction. The availability of suitable flap coverage allows for wide resection of all of the hair-bearing skin, leading to a low incidence of residual disease and subsequent recurrence. Following excision of the affected tissue, the ideal reconstructive method in the axilla provides suitable coverage without unacceptable donor site morbidity and also avoids axillary contractures. A long lateral thoracic flap with delay has excellent coverage with minimal donor tissue sacrifice. With a suitable flap coverage option, the management paradigm of intractable HS should shift from prolonged medical treatment to allow decisive radical excision, which will improve the quality of life for patients.
Mei Kee Koh,Yee Jie Wong,Siang-Piao Chai,Abdul Rahman Mohamed 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.62 No.-
Copper-based catalysts with different metal-oxide(s) composition were synthesized and applied in CO2 hydrogenation to methanol. The metal component(s) (Cu, Zn and/or Mn) were dispersed on high surface area SBA-15. Correlations between the adsorption properties of catalysts and the catalytic performances reveal that a catalyst with both strong hydrogenation strength and moderate CO2 adsorption strength is crucial for achieving high CO2 conversion. Additionally, the availability of metal-oxide(s) interfacial area greatly enhances methanol selectivity. An adequate balance between H2 and CO2 adsorptions as well as metal-oxide(s) interfacial area were responsible for the high catalytic activity achieved in this study.
Ramachandran, Savitha,Ong, Yee-Siang,Chin, Andrew Y.H.,Song, In-Chin,Ogden, Bryan,Tan, Bien-Keem Korean Society of Plastic and Reconstructive Surge 2014 Archives of Plastic Surgery Vol.41 No.3
Microsurgery training in Singapore began in 1980 with the opening of the Experimental Surgical Unit. Since then, the unit has continued to grow and have held microsurgical training courses biannually. The road to becoming a full-fledged reconstructive surgeon requires the mastering of both microvascular as well as flap raising techniques and requires time, patience and good training facilities. In Singapore, over the past 2 decades, we have had the opportunity to develop good training facilities and to refine our surgical education programmes in reconstructive microsurgery. In this article, we share our experience with training in reconstructive microsurgery.
Chae, Jung-Woo,Chua, Peh Siang,Ng, Terence,Yeo, Angie Hui Ling,Shwe, Maung,Gan, Yan Xiang,Dorajoo, Sreemanee,Foo, Koon Mian,Loh, Kiley Wei-Jen,Koo, Si-Lin,Chay, Wen Yee,Tan, Tira Jing Ying,Beh, Sok Yu Springer-Verlag 2018 Breast cancer research and treatment Vol.168 No.3
<P>This is the first study to show that the reduction of mtDNA content in peripheral blood is associated with the onset of CRF in patients receiving chemotherapy. Further validation studies are required to confirm the findings.</P>
Vascularisation of Urethral Repairs with the Gracilis Muscle Flap
Ee Hsiang Jonah Kua,Kah Woon Leo,Yee-Siang Ong,Christopher Cheng,Bien-Keem Tan 대한성형외과학회 2013 Archives of Plastic Surgery Vol.40 No.5
Background The ability to achieve a long-term, stricture-free urethral repair is one of the ongoing challenges of reconstructive urologic surgery. A successful initial repair is critical, as repeat procedures are difficult, owing to distortion, scarring, and short urethral stumps. Methods We describe a technique in which the gracilis muscle flap is laid on or wrapped around the urethral repair site to provide a well-vascularised soft tissue reinforcement for urethral repair. This technique promotes vascular induction, whereby a new blood supply is introduced to the repair site to improve the outcome of urethral repair or anastomotic urethroplasty. The surface contact between the muscle flap and the repair site is enhanced by the use of fibrin glue to improve adherence and promote inosculation and healing. We employed this technique in 4 patients with different urethral defects. Results After a follow-up period of 32 to 108 months, all of the urethral repairs were successful without complications. Conclusions Our results suggest that the use of a gracilis muscle flap to vascularise urethral repairs can improve the outcome of challenging urethral repairs.
Vascularisation of Urethral Repairs with the Gracilis Muscle Flap
Kua, Ee Hsiang Jonah,Leo, Kah Woon,Ong, Yee Siang,Cheng, Christopher,Tan, Bien-Keem Korean Society of Plastic and Reconstructive Surge 2013 Archives of Plastic Surgery Vol.40 No.5
Background The ability to achieve a long-term, stricture-free urethral repair is one of the ongoing challenges of reconstructive urologic surgery. A successful initial repair is critical, as repeat procedures are difficult, owing to distortion, scarring, and short urethral stumps. Methods We describe a technique in which the gracilis muscle flap is laid on or wrapped around the urethral repair site to provide a well-vascularised soft tissue reinforcement for urethral repair. This technique promotes vascular induction, whereby a new blood supply is introduced to the repair site to improve the outcome of urethral repair or anastomotic urethroplasty. The surface contact between the muscle flap and the repair site is enhanced by the use of fibrin glue to improve adherence and promote inosculation and healing. We employed this technique in 4 patients with different urethral defects. Results After a follow-up period of 32 to 108 months, all of the urethral repairs were successful without complications. Conclusions Our results suggest that the use of a gracilis muscle flap to vascularise urethral repairs can improve the outcome of challenging urethral repairs.
Edwin Jonathan Aslim,Mohamed Zulfikar Rasheed,Fangbo Lin,Yee-Siang Ong,Bien-Keem Tan 대한성형외과학회 2014 Archives of Plastic Surgery Vol.41 No.5
Background: Groin dissections result in large wounds with exposed femoral vessels requiringsoft tissue coverage, and the reconstructive options are diverse. In this study we reviewed ourexperience with the use of the pedicled anterolateral thigh and vertical rectus abdominismusculocutaneous flaps in the reconstruction of large groin wounds. Methods: Groin reconstructions performed over a period of 10 years were evaluated, with amean follow up of two years. We included all cases with large or complex (involving perineum)defects, which were reconstructed with the pedicled anterolateral thigh musculocutaneous orthe vertical rectus abdominis musculocutaneous (VRAM) flaps. Smaller wounds which werecovered with skin grafts, locally based flaps and pedicled muscle flaps were excluded. Results: Twenty-three reconstructions were performed for large or complex groin defects,utilising the anterolateral thigh (n=10) and the vertical rectus abdominis (n=13) pedicledmusculocutaneous flaps. Femoral vein reconstruction with a prosthetic graft was required inone patient, and a combination flap (VRAM and gracilis muscle flap) was performed inanother. Satisfactory coverage was achieved in all cases without major complications. No freeflaps were used in our series. Conclusions: The anterolateral thigh and vertical rectus abdominis pedicled musculocutaneousflaps yielded consistent results with little morbidity in the reconstruction of large and complexgroin defects. A combination of flaps can be used in cases requiring extensive cover.