Condition monitoring elements using integration model for wind turbine system

Due to the increasing unit capacity of wind turbines and development in wind power technology, the installed capacity is increased each year which leads to the poor working condition of the turbine and reduced transmission due to load changing complexity. Furthermore, there are several problems with the wind turbines due to the high force of wind blow, the blades may get damaged due to high vibration which results in the fatigue of main body of the wind turbine. In this paper, the wind turbine has been monitor using the integrated model using three stages such as preprocessing, fog computing, and fault classification. The secured data stored in the cloud is analyzed so as to provide an effective power generation so as to meet future demands. Moreover, it has been observed that the data undergoes a variation over the power generation due to fault detection caused by generation bearing, tip speed ratio noise, etc. The performance of the proposed method is analyzed by various parameters such as model performance

VATS hand sewn intrathoracic esophagogastric anastomosis

10.21037/jovs.2017.03.26Journal of visualized surgery39

Hyperparathyroidism due to eutopic PTH secretion from an ectopic intrathymic parathyroid cyst

10.5761/atcs.cr.10.01634Annals of Thoracic and Cardiovascular Surgery175511 - 51

Survival of small-cell lung cancer and its determinants of outcome in Singapore

Introduction: The survival and epidemiology of small-cell lung cancer (SCLC) in Singapore has not been described. We aim to present the characteristics as well as determine the survival outcome and important prognostic factors for SCLC patients. Materials and Methods: A retrospective analysis of SCLC patients diagnosed from 1999 to 2002 was conducted at the Outram campus, Singapore. Clinical characteristics and treatment data were obtained from case records and survival data were checked with the registry of births and deaths on 30 May 2005. Results: One hundred and eleven patients were analysed. There were 38 (34.2%) limited-disease (LD) patients and 73 (65.8%) extensive-disease (ED) patients. The majority were current or former smokers (94.7% among LD and 94.5% among ED). More patients with LD had good performance status (92% versus 63%, P = 0.0003) and were treated with combined chemotherapy and radiotherapy (82% versus 48%, P = 0.012). The median survival time of LD patients treated with curative chemoradiotherapy was 14.2 months (95% CI, 10.96 to 17.44). Those given prophylactic cranial irradiation had a median survival time of 16.9 months (95% CI, 11.83 to 21.97). For ED patients, the median survival time was 8.17 months (95%CI, 5.44 to 10.89). None of the factors analysed were significant prognostic factors for LD patients while performance status and type of treatment given were significant among ED patients. Conclusions: We found that the characteristics and survival of SCLC patients in Singapore are fairly similar to that of other countries

Robotic extended thymectomy for early-stage thymomas

OBJECTIVES: The aim of this study was to report a single referral centre experience in robotic extended thymectomy for clinical earlystage thymomas, evaluating its safety, feasibility and efficacy, with special regard to oncological outcomes. METHODS: Between April 2002 and February 2011, we retrospectively selected all those patients who underwent robotic thymectomy for clinical early-stage thymomas. Operative time, morbidity, mortality, duration of hospitalization and overall and disease-free survival were analysed. RESULTS: There were 14 patients (8 males, 6 females) with a mean age of 65.2 years (range 23-81). One patient suffered from myasthenia gravis. The WHO classifications were: A in two cases, AB in four cases, B1 in three cases, B2 in two cases and B3 in three cases. The Masaoka stages were: I in seven cases, IIA in four cases, IIB in two cases and III in one case. The mean operative time was 139 min. No intra-operative complication or death occurred. Conversion to open surgery was required in two cases. Minor complications occurred in two patients (14.2%) due to pleural effusion. The mean hospitalization was 4.0 days. Five patients underwent adjuvant radiotherapy. All patients were alive with no disease recurrence, with a median follow-up of 14.5 months (range 1-98). CONCLUSIONS: Robotic thymectomy is a safe and feasible technique, with a short operative time and low morbidity. Even on a small series with short follow-up, robotic extended thymectomy for thymoma appeared to be an effective treatment for early-stage thymomas. © The Author 2012. Published by Oxford University Press on behalf of the European Association for Cardio-Thoracic Surgery. All rights reserve

Induction concurrent chemoradiotherapy using paclitaxel and carboplatin combination followed by surgery in locoregionally advanced non-small cell lung cancer - Asian experience

INTRODUCTION: It has been established that combined chemoradiotherapy treatment benefits selected patients with stage III Non Small Cell Lung Cancer (NSCLC). However, locoregional recurrence still poses a problem. The addition of surgery as the third modality may provide a possible solution. We report our experience of using the triple-modality approach in this group of patients. MATERIALS AND METHODS: This is a retrospective review of 33 patients with stage III NSCLC treated between 1997 and 2005. Patients have good performance status and no significant weight loss. There were 26 males (79 %) with median age of 63 years (range, 43 to 74) and median follow-up of 49 months. Seventy-six percent had Stage IIIA disease. Chemotherapy consisted of paclitaxel at 175 mg/m2 over 3 hours followed by carboplatin at AUC of 5 over 1 hour. Thoracic radiotherapy was given concurrently with the second and third cycles of chemotherapy. All patients received 50 Gray in 25 fractions over 5 weeks. RESULTS: The main toxicities were grade 3/4 neutropenia (30%), grade 3 infection (15 %) and grade 3 oesophagitis (9%). Twenty-five patients (76%) underwent surgery. Of the 8 who did not undergo surgery, 1 was deemed medically unfit after induction chemoradiotherapy and 4 had progressive disease; 3 declined surgery. Nineteen patients (58 %) had lobectomy and 6 had pneumonectomy. The median overall survival was 29.9 months and 12 patients are still in remission. CONCLUSION: The use of the triplemodality approach is feasible, with an acceptable tolerability and resectability rate in this group of patient

Feasibility of Using Low-Volume Tissue Samples for Gene Expression Profiling of Advanced Non-Small Cell Lung Cancers

Clinical Cancer Research916 I5980-5987CCRE