Publications by authors named "Hyun Jun Kwon"

The development of cost-effective and high-performance oxygen evolution reaction (OER) catalysts is a significant challenge. This study presents the synthesis of binder-free NiFe@NiFe layered double hydroxide (NNF) via one-pot electrodeposition on carbon paper and Ni foam at high current densities. The presence of Ni sulfate residues on the prepared NNF is also investigated.

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We investigated the role of task constraints on interpersonal interactions. Twenty-one pairs of coworkers performed a finger force production task on force sensors placed at two ends of a seesaw-like apparatus and matched a combined target force of 20 N for 23 s over 10 trials. There were two experimental conditions: ) FIXED: the seesaw apparatus was mechanically held in place so that the only task constraint was to match the 20 N resultant force, and ) MOVING: the lever in the apparatus was allowed to rotate freely around its fulcrum, acting like a seesaw, so an additional task constraint to (implicitly) balance the resultant moment was added.

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Purpose: To evaluate the influence of preoperative mechanical bowel preparation (MBP) based on the occurrence of anastomosis leakage, surgical site infection (SSI), and severity of surgical complication when performing elective colorectal surgery.

Materials And Methods: MBP and non-MBP patients were matched using propensity score. The outcomes were evaluated according to tumor location such as right- (n=84) and left-sided colon (n=50) and rectum (n=100).

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Introduction: Stercoral perforation of the colon has rarely been reported. Only 3 cases of stercoral perforation of the colon proximal to an end colostomy have been reported. We present two cases of stercoral perforation of the colon in end colostomy patients.

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This study aimed to develop an economically viable enzyme for the optimal production of steviol (S) from stevioside (ST). Of 9 commercially available glycosidases tested, S-producing β-glucosidase (SPGase) was selected and purified 74-fold from Penicillium decumbens naringinase by a three-step column chromatography procedure. The 121-kDa protein was stable at pH 2.

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