the presence of chlorophyll and with energy derived from light-- to form sugars,require that carbon dioxide from the air enter the plant.【简析】主谓之间被一个很长的定语从句 by which…隔开.该定语从句(黑体部分)是 对主语 The processes(光合作用过程)的解释.【译文】在有叶绿素和光能的情况下,...
This work reviews the long-term evolution of the atmosphere of Venus, and modulation of its composition by interior/exterior cycling. The formation and evolution of Venus’s atmosphere, leading to contemporary surface conditions, remain hotly debated topics, and involve questions that tie into many ...
A torch, useful in air-carbon arc processes has a holder (9, 11) for an electrode (E) and gas control means comprising a venturi air injector (4), arranged to pass both compressed air (F) and induced air (Fi) along the electrode to the tip (Et) to cool the electrode, increase ...
(H2O2/UV, O3/H2O2/UV, UV/TiO2, H2O2/TiO2/UV, O3/TiO2/UV); the Fenton reaction-based processes (Fe2+/H2O2, Fe2+/H2O2/UV, Electro -Fenton), and ozone-based processes (O3/UV, O3/H2O2, O3/Fe++, O3/metal oxide catalyst, O3/activated carbon, O3/ultrasound); Other processes which ...
Regional processes on land-water-air interface carbon(C)budget and balance that interconnect the land and sea are in fact C neutrality critical processes within the earth system.It is therefore essential to quantitatively analyze synergistic landwater-air interface C transport and C exchange processes...
Research in Japan demonstrates novel electrical pulse method for carbon fiber recycling Studies show that the direct discharge electrical pulse technique is highly effective in CFRP recovery and is more energy efficient than other recycling methods. 21 Jan 2025 Aerospace VIDEO: Collins Aerospace opti...
Informal treatment of e-waste plays an important role in many countries which have no or weak formal waste management structures. One of the challenges for
Trees in natural forests are a major contributor to atmospheric methane (CH4), yet these emissions have never been investigated in reclaimed forests. Our study aimed to assess the magnitude, seasonality, drivers, and contributions of tree CH4 emissions t
organic carbon9,10. Reduction processes may transform some of the deposited HgIIto volatile Hg0, which can move vertically within the pore system of the peatland11. Net Hg0evasion from an open (tree-less) boreal peatland was measured with a micrometeorological method over the course of one ...
For life sustainability water is an essential resource present on the earth. In the current era of economical growth, groundwater is getting polluted due to the various human activities, urbanization and industrialization in addition to geogenic contamin