Effect of ZrO₂ Nanomaterials on Wettability and Interfacial Characteristics of Al-19Cu-11Si-2Sn Filler Metal for Low Temperature Al to Cu Dissimilar Brazing.

Dissimilar Al 3003 and Cu tubular components were successfully brazed without interface cracking using ZrO₂ nanomaterials reinforced with Al-19Cu-11Si-2Sn filler. The filler was initially cast using an induction furnace and processed into ring form for brazing. Al-19Cu-11Si-2Sn filler with coarse CuAl₂ and Si phases (43 and 20 μm) were refined to 8 and 4 μm, respectively, after the addition of 0.

Chloride Ion Adsorption Capacity of Anion Exchange Resin in Cement Mortar.

This paper presents the effect of anion exchange resin (AER) on the adsorption of chloride ions in cement mortar. The kinetic and equilibrium behaviors of AER were investigated in distilled water and Ca(OH)₂ saturated solutions, and then the adsorption of chloride ions by the AER in the mortar specimen was determined. The AER was used as a partial replacement for sand in the mortar specimen.

Sedimentary mercury (Hg) in the marginal seas adjacent to Chinese high-Hg emissions: Source-to-sink, mass inventory, and accumulation history.

We comprehensively investigated sedimentary Hg in Yellow and East China Seas (YECSs), which constitute potentially important depocenters for large anthropogenic Hg emissions from mainland China. A large dataset of Al-TOC-Hg concentrations led to an in-depth understanding of sedimentary Hg in the entire YECSs, including distribution and its determinants, source-to-sink, background levels, inventory in flux and budget, and accumulation history. Especially, the net atmospheric Hg flux to the sediments was estimated to be 1.

Laparoscopic gastrojejunostomy versus duodenal stenting in unresectable gastric cancer with gastric outlet obstruction.

Purpose: To compare the outcome between laparoscopic gastrojejunostomy (LapGJ) and duodenal stenting (DS) in terms of oral intake, nutritional status, patency duration, effect on chemotherapy and survival.

Methods: Medical records of 115 patients, who had LapGJ or duodenal stent placement between July 2005 and September 2015 in Seoul National University Bundang Hospital, have been reviewed retrospectively. Oral intake was measured with Gastric Outlet Obstruction Scoring System.

Spleen-preserving lymphadenectomy versus splenectomy in laparoscopic total gastrectomy for advanced gastric cancer.

Background: To investigate the optimal approach for laparoscopic splenic hilum lymph node dissection in proximal advanced gastric cancer, we compared the operative outcomes between laparoscopic spleen-preserving total gastrectomy (sp-LTG) and laparoscopic total gastrectomy with splenectomy (sr-LTG).

Methods: A retrospective case-cohort study was conducted between February 2006 and December 2012. The operative outcomes, the number of retrieved splenic hilum lymph node, complication, and patients' survivals were analyzed.

Laparoscopic gastrectomy versus open gastrectomy for gastric cancer in patients with body mass index of 30 kg/m2 or more.

Background: High body mass index (BMI) and high visceral fat area (VFA) are known to be a preoperative risk factor for laparoscopic gastrectomy (LG) for gastric cancer. However, the impact of obesity on LG still remains controversial. In the present study, we compared the operative outcomes of LG with those of OG in patients with BMI of 30 kg/m(2) or more.

Laparoscopic completion total gastrectomy for remnant gastric cancer: a single-institution experience.

Background: The aim of the present study was to evaluate the feasibility of laparoscopic completion total gastrectomy (LCTG) in patients with remnant gastric cancer.

Methods: Patients who underwent completion total gastrectomy for remnant gastric cancer between May 2003 and December 2012 were divided into two groups: an open completion total gastrectomy (OCTG) group and an LCTG group. Clinicopathological data, operative data, and patient survival rates were analyzed.

Impact of perioperative hemoglobin levels on postoperative outcomes in gastric cancer surgery.

Background: The aim of this study was to evaluate the association of postoperative blood transfusion and anemia with postoperative outcomes in gastric cancer surgery.

Methods: We enrolled 588 patients who had undergone curative resection for gastric cancer. Input variables for risk assessment consisted of 3 categories: patient demographics, surgical and pathological factors, and anemia-related factors.