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简介:OnDecember17,2012the5-kt/amethanol-to-propylene(MTP)pilotunitwassuccessfullyputonstreamattheOlefinsPlantofYangziPetrochemicalCompany,whichsymbolizedthatSINOPEChassuccessfullyopenedupanovelprocessrouteforproductionofcoal-basedbasicorganicchemicalmaterialsTheconstructionof5-kt/aMTPpilotunitwaskickedoffinOctober2011,whichhasbeenenvisagedinSINOPEC's
简介:为了使人们更多地了解地震的危害性,美国政府正在花费大量的资金致力于寻找两个问题的答案。这两个问题是什么呢?他们具体的做法又是什么呢?TheU.S.governmenthasrecentlyhelpedpeoplelearnmoreaboutthedan-gersofearthquakesbypublishingamap.Thismapshowsthechancesofanearth-quakeineachpartofthecountry.Thear-easofthemapwhereearthquakesaremostlikelytobreakoutarecalledearthquake“belt”.Thegovernmentisspendingagreatdealofmoneyanisworkinghardtohelpdiscovertheanswertothesetwoquestions:1.Canweforetellearthquakes?2.Canw...
简介:AbstractMechanical power of ventilation, currently defined as the energy delivered from the ventilator to the respiratory system over a period of time, has been recognized as a promising indicator to evaluate ventilator-induced lung injury and predict the prognosis of ventilated critically ill patients. Mechanical power can be accurately measured by the geometric method, while simplified equations allow an easy estimation of mechanical power at the bedside. There may exist a safety threshold of mechanical power above which lung injury is inevitable, and the assessment of mechanical power might be helpful to determine whether the extracorporeal respiratory support is needed in patients with acute respiratory distress syndrome. It should be noted that relatively low mechanical power does not exclude the possibility of lung injury. Lung size and inhomogeneity should also be taken into consideration. Problems regarding the safety limits of mechanical power and contribution of each component to lung injury have not been determined yet. Whether mechanical power-directed lung-protective ventilation strategy could improve clinical outcomes also needs further investigation. Therefore, this review discusses the algorithms, clinical relevance, optimization, and future directions of mechanical power in critically ill patients.