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Guangchao Ye, Wei Wang, Haicheng Liu, Wenqiang Xie, Shixing Xia, Qinggang Meng and Peng Lin
A Tm,Ho:YAP laser at cryogenic temperature is demonstrated for the first time with simultaneous emission at 2000 nm and 2119 nm. The feasibility of switching wavelength and achieving balanced output powers at two widely separated wavelengths has been con...
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Huangjun Zeng, Wenze Xue, Robert T. Murray, Weidong Chen, Zhongben Pan, Li Wang, Chen Cui, Pavel Loiko, Xavier Mateos, Uwe Griebner and Valentin Petrov
We investigate in-band pumping of a Tm,Ho,Lu:CaGdAlO4 laser using a Raman-shifted Er-fiber laser (1678 nm), in the continuous-wave (CW) and mode-locked (ML) regimes. A maximum output power of 524 mW is obtained in the CW regime with a 5% output coupler a...
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Irfan Abid, Terry W. Sturm and Seung Ho Hong
Bridge abutment scour is a complex phenomenon, which significantly affects bridge stability and is responsible for the damage and failures of many bridges over waterways across the world. Given the widespread and devastating human and societal costs, num...
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Wu Pan-Zagorski, Peter W. Johnson, Missy Pereny and Jeong Ho Kim
An automotive seat is a key component which not only provides restraint and support for its occupant, but also mitigates vibration. Since an automotive seat is in constant contact with the vehicle occupant, its dynamic comfort is of great importance in a...
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Chun Li, Yuxin Leng, Shanming Li and Yin Hang
Diode-pumped solid-state lasers using novel Yb:LaF3 and Tm,Ho:LaF3 crystals as laser gain materials are demonstrated herein. The Yb:LaF3 and Tm,Ho:LaF3 crystals were grown using the Bridgman method. By matching their absorption bands, continuous-wave las...
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Edwin F. Liang, Samuel Z. Lim, Wilson W. Tam, Cyrus S. Ho, Melvyn W. Zhang, Roger S. McIntyre and Roger C. Ho
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Milad Abdollahpour, Ali Hosseinzadeh Dalir, Davod Farsadizadeh, Carlo Gualtieri
Pág. 1 - 15
Erosion in river bends causes loss of agricultural lands, adjacent facilities, and fish habitat. W-weir structures are recommended for controlling and reducing soil erosion as well as developing habitat for fish and other aquatic organisms. This paper pr...
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Kenn? N. de Kock, Cornelius T. Wolmarans, Mathilde Kemp, Wietsche Roets
Pág. 6 bladsye
Die bewaringstatus van minder as 2% van die ongeveer 7000 molluskspesies bekend w?reldwyd, is tot dusver behoorlik geassesseer. Gevolglik is die algemene vlak van bedreiging vir molluske power gedokumenteer en hoogs waarskynlik onderskat. Varswate...
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Marie Louise Botha
Pág. 7 bladsye
Die ontwikkeling van ?n gehalte onderwyskorps is ?n ?prim?re voorwaarde vir opvoedkundige transformasie? (Nasionale Onderwysbeleidondersoek [NEPI] 1993:235). Die gehalte van leer word beduidend be?nvloed deur die gehalte van onderwysers en hulle o...
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Tae Ho Kim, Anthony W. Breedlove, and Luis San Andrés
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