B. Kim

Water leakage from aging water and wastewater pipes is a persistent problem, necessitating the improvement of existing leak detection and response methods. In this study, we conducted an analysis of essential features based on data collected from leak detection sensors installed at water meter boxes and water outlets of pipelines. The water pipeline data collected through the vibration sensor were preprocessed by converting it into a tabular form by frequency band and applied to various machine learning models. The characteristics of each model were analyzed, and XGBoost was selected as the most suitable leak detection model with a high accuracy of 99.79%. These systems can effectively reduce leak detection and response time, minimize water waste, and minimize economic losses. Additionally, this technology can be applied to various fields that utilize water pipes, making it widely applicable.

Transobturator-vaginal-tape (TOT) techniques are one of the worldwide surgical procedures for female urinary incontinence and various TOT systems are under the use on surgeon’s preference. However, there is no consensus on the best TOT system. We compared the clinical efficacy, safety and satisfaction of patients with the TVT-O (TVT-obturator system, Ethicon), MONARC (MONARC subfascial hammock, American Medical System) and Iris-TOT (Iris-tension-free obturator tape, B. Braun Korea & Dow Medics Co., Ltd, Seoul) operation for stress and mixed urinary incontinence in women, retrospectively.

Open prostatectomy has been considered primarily when the prostate volume is quite large (eg. more than 75g). However, with the development of surgical skills and instruments, transurethral resection of prostate (TURP) can be an alternative. We assessed the feasibility of TURP in patients with large benign prostatic hyperplasia (BPH) by comparing the efficacy of TURP with that of open prostatectomy, retrospectively.