Previous research has shown that using fine lightweight aggregate (FLWA) can be a promising strategy to mitigate alkali-silica reaction (ASR) in mortar and concrete. While several possible theories were proposed by researchers, discrepancies in testing methods, materials, and supporting evidence still exist. Therefore, this study was initiated. There are two...
Organoleptically, flavored yogurts appear to contain lower
levels of acetaldehyde than plain yogurt. This study was undertaken
to seek the reasons for this phenomenon by focusing on the analyses
of acetaldehyde production by yogurt culture bacteria in yogurt base
containing added sucrose and by performing other analyses such as
the...
Several lower tolerance limit procedures are compared with regard
to efficiency and robustness. The procedures include the nonparametric
based on a single order statistic and the maximum likelihood
estimates for complete and censored samples from parametric families
of distributions. Right-censoring is considered as an approach for
improving the robustness of...
Mud volcanoes (MVs) are considered as important methane (CH₄) sources for the
atmosphere; gas is not only released from macroseepage, i.e., from craters and visible gas bubbling
manifestations, but also from invisible and pervasive exhalation from the ground, named miniseepage.
CH₄ flux related to miniseepage was measured only in a...
In this paper, we report a fiber-optic carbon dioxide (CO₂) near-infrared (IR) absorption sensor with only 8-cm sensing length that is coated with nanoporous metalorganic framework material Cu-BTC (BTC = benzene-1,3, 5-tricarboxylate). The multimode optical fiber was etched by hydrofluoric acid to remove the cladding and part of the core,...
Despite significant advantages in terms of portability and cost, near-infrared (NIR) gas sensing still remains a great challenge due to its relatively weak overtone absorption from the fundamental vibrational bond absorption at the mid-IR frequency. In this paper, we demonstrated ultra-sensitive NIR gas sensing for carbon dioxide (CO₂) at 1.57...
Seafood inspection and certification has become a trend on international trade. Recent incidences of chemical residues were examined in exporting seafood products which hinder the future export to the European Union and Japan particularly. Hence, the perceptions of seafood quality and safety from a consumer point of view and international...
Grassland recovery from degradation is increasingly occurring worldwide. Diverse managements have been considered as effective ways to restore degraded grassland, but it remains unclear how semi-arid grasslands respond to long-term grazing exclusion and fenced mowing. Here, a study was conducted under open grazing, grazing exclusion and fenced mowing in a...
An interface was developed between COMSOL Multiphysics™ finite element analysis software and (geo)chemical modeling platform, GEMS, for the reactive-transport modeling of (geo)chemical processes in variably saturated porous media. The two standalone software packages are managed from the interface that uses a non-iterative operator splitting technique to couple the transport (COMSOL)...