No one can pretend that nuclear engineering is simple.Far from it.But the next best thing is experience-lots of it-and no company can offermore experience or a more responsive service than BNFL Engineering Ltd.As the ...No one can pretend that nuclear engineering is simple.Far from it.But the next best thing is experience-lots of it-and no company can offermore experience or a more responsive service than BNFL Engineering Ltd.As the engineering arm of BNFL we are able to call on over 40 yearsof experience that provides our customers with valuable operational feedback,展开更多
In this paper, processes for producing a food-grade glucose solution through enzymatic hydrolysis of celluloserich solids obtained from rice straws are presented. The rice straws were pretreated by acid-catalyzed stea...In this paper, processes for producing a food-grade glucose solution through enzymatic hydrolysis of celluloserich solids obtained from rice straws are presented. The rice straws were pretreated by acid-catalyzed steam explosion, and the reaction efficiency, toxicity control, and process economic feasibility were studied. Mass transfer resistance to the hydrolysis reaction was reduced by grinding with glass beads. A higher glucose concentration could be obtained by feeding more cellulose in the hydrolysis reaction; however, this also resulted in the production of undesired byproducts. Thus, a soaking process for the cellulose solids in water was developed to effectively reduce the generation of byproducts in the hydrolysis reaction. The resulting food-grade glucose solution can provide 414 kilocalories per liter, and could be used during a food-shortage crisis in the future.The current production cost is estimated to be 0.82 USD·L^(-1).展开更多
The world is trying to recover from once in the COVID-19 pandemic, which has a higher mortality rate than the common flu. However, the threat of different variants is still affecting us in a different capacity. Severa...The world is trying to recover from once in the COVID-19 pandemic, which has a higher mortality rate than the common flu. However, the threat of different variants is still affecting us in a different capacity. Several preventive measures have been adopted across the nation and the globe to avoid the spr<span style="font-family:Verdana;">ead of this virus, such as lockdown, restricted travel, social distancing guidelin</span><span style="font-family:Verdana;">es, obligatory face mask use, etc. These activities directly influenced the manag</span><span style="font-family:Verdana;">ement of social life, economy, and livelihoods. The effect of COVID-</span><span style="font-family:Verdana;">19 on the public transit industry and strategies the transit agencies adapted to continue providing the service during the pandemic has been synthesized in this pap</span><span style="font-family:Verdana;">er. As a result of the pandemic, public transit ridership decreased by abou</span><span style="font-family:Verdana;">t 70 percent for most agencies compared to pre-pandemic levels. This article also highlights the prevention of COVID-19 spread in the public transit industry using engineering solutions and advanced material science and nanotechnology solutions.</span>展开更多
文摘No one can pretend that nuclear engineering is simple.Far from it.But the next best thing is experience-lots of it-and no company can offermore experience or a more responsive service than BNFL Engineering Ltd.As the engineering arm of BNFL we are able to call on over 40 yearsof experience that provides our customers with valuable operational feedback,
基金the Ministry of Science and Technology of Taiwan for financially supporting this research under Contract No.NSC-1022623-E-002-012-ET
文摘In this paper, processes for producing a food-grade glucose solution through enzymatic hydrolysis of celluloserich solids obtained from rice straws are presented. The rice straws were pretreated by acid-catalyzed steam explosion, and the reaction efficiency, toxicity control, and process economic feasibility were studied. Mass transfer resistance to the hydrolysis reaction was reduced by grinding with glass beads. A higher glucose concentration could be obtained by feeding more cellulose in the hydrolysis reaction; however, this also resulted in the production of undesired byproducts. Thus, a soaking process for the cellulose solids in water was developed to effectively reduce the generation of byproducts in the hydrolysis reaction. The resulting food-grade glucose solution can provide 414 kilocalories per liter, and could be used during a food-shortage crisis in the future.The current production cost is estimated to be 0.82 USD·L^(-1).
文摘The world is trying to recover from once in the COVID-19 pandemic, which has a higher mortality rate than the common flu. However, the threat of different variants is still affecting us in a different capacity. Several preventive measures have been adopted across the nation and the globe to avoid the spr<span style="font-family:Verdana;">ead of this virus, such as lockdown, restricted travel, social distancing guidelin</span><span style="font-family:Verdana;">es, obligatory face mask use, etc. These activities directly influenced the manag</span><span style="font-family:Verdana;">ement of social life, economy, and livelihoods. The effect of COVID-</span><span style="font-family:Verdana;">19 on the public transit industry and strategies the transit agencies adapted to continue providing the service during the pandemic has been synthesized in this pap</span><span style="font-family:Verdana;">er. As a result of the pandemic, public transit ridership decreased by abou</span><span style="font-family:Verdana;">t 70 percent for most agencies compared to pre-pandemic levels. This article also highlights the prevention of COVID-19 spread in the public transit industry using engineering solutions and advanced material science and nanotechnology solutions.</span>