2,492 research outputs found
Wavelength dependence of thermo-optic coefficient of organically modified SiO2-ZrO2 hybrid films
The secG deletion mutation of Escherichia coli is suppressed by expression of a novel regulatory gene of Bacillus subtilis
AbstractSecG, a membrane component of E. coli protein translocase, stimulates the translocation of proteins across the cell membrane through the cycle of topology inversion, which is coupled to the membrane-insertion and deinsertion cycle of SecA [Nishiyama et al. (1996) Cell 85, 71â81]. A gene of B. subtilis able to suppress the cold-sensitive phenotype of the secG deletion mutant of E. coli was cloned and found to encode a novel regulatory protein, ScgR. Similarity search revealed homology with known proteins such as GlnR of B. subtilis. Plasmid-encoded ScgR stimulated protein translocation in the deletion mutant. ScgR increased the proportion of cardiolipin at the expense of phosphatidylglycerol, but did not affect the composition of other lipid components of the cell, suggesting that the increased cardiolipin level compensates for the SecG function and thereby stimulates protein translocation
Assessment of energy consumption as a performance index in high-rise buildings in Hanoi, Vietnam
This research aims to at investigating the actual performance of high-rise office buildings in terms of
the indoor environment and energy consumption. Data collection was based on the onsite
measurement of five buildings in operation in Hanoi, Vietnam. The thermal environment, illuminance,
CO2 concentration, and energy consumption were the basic parameters analyzed as a fundamental
step toward realizing and determining energy-efficient buildings. The current situation can be roughly
was described; the most of methodology follow the western standard and there still be less data that
show the actual situation under building operation documented. To analyze and evaluate, this
research conducted measurement of indoor environment quality (IEQ) and energy consumption of
high-rise office buildings between 2014 and 2015 in Hanoi. From the result, it is presented evident
that the overall energy consumption and indoor environment of office buildings in Vietnam are not in a
negative situation to compare favorably with international standards. However, it is also presented
that there is a large high fluctuation in the thermal environment. The electricity consumption has
strong relationship with outdoor temperature obviously and the peak consumption is observed in the
summer. The consumption doesnât increase in winter despite indoor temperature show being lower
than the standard comfort criteria-zone. This results in the lower energy consumption in the observed
buildings due to the unique climate of Hanoi and inappropriate building operation mainly because of
such as the insufficient operation of air conditioning systems and the air-tightness of building
envelopes
Assessment of energy consumption as a performance index in high-rise buildings in Hanoi, Vietnam
This research aims to at investigating the actual performance of high-rise office buildings in terms of
the indoor environment and energy consumption. Data collection was based on the onsite
measurement of five buildings in operation in Hanoi, Vietnam. The thermal environment, illuminance,
CO2 concentration, and energy consumption were the basic parameters analyzed as a fundamental
step toward realizing and determining energy-efficient buildings. The current situation can be roughly
was described; the most of methodology follow the western standard and there still be less data that
show the actual situation under building operation documented. To analyze and evaluate, this
research conducted measurement of indoor environment quality (IEQ) and energy consumption of
high-rise office buildings between 2014 and 2015 in Hanoi. From the result, it is presented evident
that the overall energy consumption and indoor environment of office buildings in Vietnam are not in a
negative situation to compare favorably with international standards. However, it is also presented
that there is a large high fluctuation in the thermal environment. The electricity consumption has
strong relationship with outdoor temperature obviously and the peak consumption is observed in the
summer. The consumption doesnât increase in winter despite indoor temperature show being lower
than the standard comfort criteria-zone. This results in the lower energy consumption in the observed
buildings due to the unique climate of Hanoi and inappropriate building operation mainly because of
such as the insufficient operation of air conditioning systems and the air-tightness of building
envelopes
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