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| 1 | Panel positioning error and support mechanism for a 30-m THz radio telescope显示文摘A 30-m TeraHertz(THz) radio telescope is proposed to operate at 200 μm with an active primary surface.This paper presents sensitivity analysis of active surface panel positioning errors with optical performance in terms of the Strehl ratio.Based on Ruze's surface error theory and using a Monte Carlo simulation,the effects of six rigid panel positioning errors,such as piston,tip,tilt,radial,azimuthal and twist displacements,were directly derived.The optical performance of the telescope was then evaluated using the standard Strehl ratio.We graphically illustrated the various panel error effects by presenting simulations of complete ensembles of full reflector surface errors for the six different rigid panel positioning errors.Study of the panel error sensitivity analysis revealed that the piston error and tilt/tip errors are dominant while the other rigid errors are much less important.Furthermore,as indicated by the results,we conceived of an alternative Master-Slave Concept-based(MSC-based) active surface by implementating a special Series-Parallel Concept-based(SPC-based) hexapod as the active panel support mechanism.A new 30-m active reflector based on the two concepts was demonstrated to achieve correction for all the six rigid panel positioning errors in an economically feasible way. | De-Hua Yang Daniel Okoh Guo-Hua Zhou Ai-Hua Li Guo-Ping Jing-Quan Cheng | 2011 | Research in Astronomy and Astrophysics2011，11，6： | 3 |
| 2 | See comment in PubMed Commons below Transvesical prostatectomy in the management of benign prostatic hyperplasia in a developing comtry显示文摘 | Ugwumba FO Ozoemena OF Okoh AD | 2014 | Niger J Clin Pract2014，17，6： | 1 |
| 3 | Estrogen-induced reactive oxygen spe- cies-mediated signalings contribute to breast cancer显示文摘 | OKOH V DEORAJ A ROY D | 2011 | Biochimica et Biophysica Acta (BBA) - Reviews on Cancer2011，1815，1： | 1 |
| 4 | Preliminary phytochemical screeningand in vitro antioxidant activities of the aqueous extract ofHelichrysum longifolium DC 显示文摘 | Aiyegoro OA Okoh AI | 2010 | BMC Complem Altern Med2010，10，1： | 1 |
| 5 | Response of three sorghum varieties to N supply and plant density in a tropical environment 显示文摘 | Ogunlela V B P N Okoh | 1989 | Fertilizer Research1989，21，2： | 1 |
| 6 | Bacterial exopolysaccharides:functionality and prospects显示文摘 | Nwodo UU Green E Okoh AI | 2012 | Int J Mol Sci2012，13，14： | 1 |
| 7 | Reactive oxygen species via redox signaling to PI3K/AKT pathway contribute to the malignant growth of 4-hydroxy estradiol-transformed mammary epithelial cells显示文摘 | Okoh V O Felty Q Parkash J | | 0，，2： | 1 |
| 8 | Studies on multiple antibiotic resistant bacterial isolated from surgical site infection显示文摘 | Adegoke AA mVuyo T Okoh A I | 2010 | Sci Res Ess2010，5，24： | 1 |
| 9 | Pleckstrin homology domains of tec family protein kinases显示文摘 | Okoh MP Vihinen M | 1999 | Biochem Biophys Res Commun1999，265，1： | 1 |
| 10 | Response of three sorghum varieties to N supply and plant density in a tropical environment显示文摘 | Ogunlela V B Okoh P N | 1989 | Fertilizer Research1989，21，2： | 1 |
| 11 | Kinetics and mechanisms of the reaction of air with nuclear grade graphites: IG-110显示文摘 | FULLER L OKOH J M | 1997 | Journal of Nuclear Materials1997，240，3： | 1 |
| 12 | Redox signalling to nuclear regulatory proteins by reactive oxygen species contributes to oestrogen-induced growth of breast cancer cells 显示文摘 | OKOH V O GARBA N A PENNEY R B | 2015 | Br J Cancer2015，112，10： | 1 |
| 13 | Occurrence of potentially pathogenic vibrios in final effluents of a wastewater treatment facility in a rural community of the Eastern Cape Province of South Africa 显示文摘 | Igbinosa EO Obi LC Okoh AI | 2009 | Res Microbiol2009，160，8： | 1 |
| 14 | Antibiotic susceptibility profile of Aeromonasspecies isolated from wastewater treatment plant显示文摘 | Igbinosa IH Okoh AI | 2012 | ScientificWorldJournal2012，2012，76： | 1 |
| 15 | Seasonal abundance and distribution of Vibrio species in the treated effluent of wastewater treatment facilities in suburban and urban communities of Eastern Cape Province, South Africa 显示文摘 | Igbinosa EO Obi CL Okoh AI | 2011 | J Microbiol2011，49，2： | 1 |
| 16 | Biodegradation of heavy crude oil Maya using spent compost and sugarcane bagasse wastes 显示文摘 | Trejo-Hemandez M R Ortiz A Okoh A I | 2007 | Chemosphere2007，68，5： | 1 |
| 17 | Bioflocculant production by Bacillus sp. Gilbert isolated from a marine environment in South Africa显示文摘 | A. M. Ugbenyen S. Cosa L. V. Mabinya A. I. Okoh | 2014 | Applied Biochemistry and Microbiology2014，，1： | 1 |
| 18 | Effects of residue quality and climate on plant residue decomposition and nutrient release along the transect from humid forest to Sahel of West Africa显示文摘 | Tian G Badejo M Okoh A Ishida F Kolawole G Hayashi Y Salako F | | 0，，02： | 1 |
| 19 | Survey of levels of phthalate ester plasticizers in a sewage lagoon effluent and a receiving stream 显示文摘 | OGUNFOWOKAN A O TORTO N ADENUGA A A OKOH E K | 2006 | Environment Monitoring and Assessment2006，118，13： | 1 |
| 20 | Emerging Vibrio species: an unending threat to public health in developing countries显示文摘 | Etinosa O. Igbinosa Anthony I. Okoh | 2008 | Research in Microbiology2008，，7： | 1 |
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