Ho-Jun Lee

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We tested the effect of effortful swallow combined with surface electrical stimulation used as a form of resistance training in post-stroke patients with dysphagia. Twenty post-stroke dysphagic patients were randomly divided into two groups: those who underwent effortful swallow with infrahyoid motor electrical stimulation (experimental group, n = 10) and(More)
BACKGROUND/AIMS Colon transit time (CTT) is a useful diagnostic tool in chronic constipation, but requires good patient compliance. We analyzed the correlation between the gas volume score (GVS) and CTT in patients with chronic constipation. METHODS The study included 145 consecutive patients (65 men) with chronic constipation. The primary outcome was the(More)
BACKGROUND/AIMS Dieulafoy lesions (DLs) are a rare but significant cause of upper gastrointestinal bleeding. We aimed to define the clinical significance of rebleeding and identify the predictors of rebleeding and mortality in upper gastrointestinal Dieulafoy lesions (UGIDLs). METHODS Patients diagnosed with UGIDLs between January 2004 and June 2013 were(More)
Controlling the thickness of an electrospun nanofibrous scaffold by altering its pore size has been shown to regulate cell behaviors such as cell infiltration into a three-dimensional (3D) scaffold. This is of great importance when manufacturing tissue-engineering scaffolds using an electrospinning process. In this study, we report the development of a(More)
Multidisciplinary Design Optimization (MDO) is a design methodology that derives optimal design solutions by concurrently considering various mutually dependent design elements from an assortment of disciplines. As such, it is applicable to the designing of ships and automobiles, as well as to aero vehicles. However, applying MDO methodologies in the real(More)
It is desired that the user of a Multidisciplinary Design Optimization (MDO) framework is capable of efficiently integrating and managing the resources distributed over heterogeneous platforms. This paper proposes a modern Web services-based MDO framework that enables the synthesis of available disciplinary and cross-disciplinary resources for MDO via the(More)
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