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Development of a Small Tea Plucking Machine
( Ping-lang Yen ),( Nai-wen Chang ),( Chen-ya Chen ),( Hong-xuan Wei ),( Shih-fangchen ),( Wei-yang Hwang ) 한국농업기계학회 2018 한국농업기계학회 학술발표논문집 Vol.23 No.1
Tea plucking in Taiwan suffers of serious labor shortage due to agricultural population decreasing and aging. The problems become even worse in hot season of tea plucking and cause tremendous economic loses for farmers. Current solutions of introducing tea harvesting machinery to substitute human power were not adequately suitable to Taiwan's geographical specialty. These machines were found difficult to operate efficiently in mountain areas, or in small tea farms, and farms with narrow ridge to ridge. This paper has proposed a tea plucking prototype that is specially designed to operate in mountain areas and for small scale tea farm. The machine contains a carrier, a tea cutter and a motorized mechanism. The carrier of small size was able to be moved by human and its tea plucking module is motorized. At the same time the height of cutter was automatically adjusted by the controller so that tea leaves can be evenly trimmed during the carrier movement. The prototype successfully demonstrated the efficiency of tea plucking can be increased and workload for human could be significantly reduced. In conclusion, the developed small electrical tea plucking machine was proved feasible for the release of labor shortage problem in Taiwan’s tea plucking industry.
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Liam, Chong-Kin,Leow, Hwong-Ruey,How, Soon-Hin,Pang, Yong-Kek,Chua, Keong-Tiong,Lim, Boon-Khaw,Lai, Nai-Lang,Kuan, Yeh-Chunn,Pailoor, Jayalakshmi,Rajadurai, Pathmanathan Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.1
Background: Mutations in the tyrosine kinase domain of the epidermal growth factor receptor (EGFR) in non-small cell lung cancer (NSCLC) are predictive of response to EGFR-targeted therapy in advanced stages of disease. This study aimed to determine the frequency of EGFR mutations in NSCLCs and to correlate their presence with clinical characteristics in multiethnic Malaysian patients. Materials and Methods: In this prospective study, EGFR mutations in exons 18, 19, 20 and 21 in formalin-fixed paraffin-embedded biopsy specimens of consecutive NSCLC patients were asessed by real-time polymerase chain reaction. Results: EGFR mutations were detected in NSCLCs from 55 (36.4%) of a total of 151 patients, being significantly more common in females (62.5%) than in males (17.2%) [odds ratio (OR), 8.00; 95% confidence interval (CI), 3.77-16.98; p<0.001] and in never smokers (62.5%) than in ever smokers (12.7%) (OR, 11.50; 95%CI, 5.08-26.03; p<0.001). Mutations were more common in adenocarcinoma (39.4%) compared to non-adenocarcinoma NSCLCs (15.8%) (p=0.072). The mutation rates in patients of different ethnicities were not significantly different (p=0.08). Never smoking status was the only clinical feature that independently predicted the presence of EGFR mutations (adjusted OR, 5.94; 95%CI, 1.94-18.17; p=0.002). Conclusions: In Malaysian patients with NSCLC, the EGFR mutation rate was similar to that in other Asian populations. EGFR mutations were significantly more common in female patients and in never smokers. Never smoking status was the only independent predictor for the presence of EGFR mutations.
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