Inhaled nitric oxide in term/late preterm neonates with hypoxic respiratory failure: estimating the financial impact of earlier use

Abstract

Objective:

We reported recently that early use of inhaled nitric oxide therapy (iNO) for term and late preterm infants with hypoxic respiratory failure (HRF) at an oxygenation index (OI) of ≥15 and <20 is associated with earlier discharge from the hospital, relative to babies treated at OI ≥25. The objective of the present analysis is to determine whether earlier use of iNO in this cohort leads to lower cost of medical care.     

氧化铝的应用、项目风险与防范

文章根据氧化铝的种类概述了其应用,并对氧化铝工业的投资风险与防范措施进行了分析。     

高活性氧化镁催化合成乙酰丙酮的工艺研究

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废弃陶瓷制备滤料、表面改性及其吸附性能研究

以废弃的瓷砖为原料制备滤料,采用加热蒸发法对滤料进行表面改性,并对它们的密度、铁覆盖量、孔隙率、比表面积、氧化铁膜的附着能力、表面形貌、铁氧化物的物相组成以及滤料的表面电位等进行了测定和分析。考察了不同pH值下改性与未改性滤料对阴、阳离子的吸附效果。结果表明：改性滤料吸附阴离子的效果优于未改性滤料,而未改性滤料吸附阳离子的效果优于改性滤料。     

Marginal abatement costs of greenhouse gas emissions from European agriculture, cost effectiveness, and the EU non-ETS burden sharing agreement

We propose a quantitative assessment of the marginal abatement costs (MAC) of greenhouse gas emissions from European agriculture and analyze the implications of the non-ETS burden-sharing agreement (BSA) for this sector. This assessment is based on MAC reduced forms, the generic specification of which enables simple parameterization and numerical computations. Such MAC curves are parameterized for each Member State using the outputs of a detailed model of the European agricultural supply. They are then used to compute total and marginal abatement costs involved by the BSA targets, as well as the cost-effective effort sharing, the corresponding emission price and abatement costs. The main findings are: (i) flexibility mechanisms such as a cap-and-trade system for agricultural emissions could reduce the total costs of meeting the 10% EU abatement target by a factor two to three relative to the strict implementation of each country's target, (ii) the corresponding equilibrium emission price is found to be 32-42 €/tCO₂eq depending on the assumption regarding business-as-usual emissions, and (iii) a cap-and-trade system with allowances based on the BSA targets would involve substantial transfers from EU-15 countries to New Member States, an important share of which being made of ‘hot air’.     

某氧化铅锌矿原则流程探索试验研究

针对某深度氧化、含泥量大、品位低的氧化铅锌矿,通过磁选—浮选试验(磁选试验、磁选尾矿浮选试验、磁选精矿细磨再选试验)、脱泥浮选试验、全粒级浮选试验,探索原则流程,最后确定采用全粒级浮选。     

铟锡氧化物靶材的研究探索

铟锡氧化物（ITO）靶材的用途广泛,研究制备铟锡氧化物靶材具有长远的战略意义。文章概述了铟锡氧化物靶材的用途和研制现状,并对铟锡氧化物靶材的应用前景进行展望。     

X射线荧光光谱法测定氧化锌富集物中锌氯砷镉铁

采用粉末压片-X射线荧光光谱法,建立了氧化锌富集物中ZnO、Cl、As、Cd、Fe的同时测定方法,并建立了针对限量标准的快速筛查流程。结果表明,该方法适用于锌元素以氧化锌物相存在的氧化锌富集物中元素的检测,各元素检测线性范围如下:ZnO(23.66%73.04%)、Fe(0.073%10.25%)、Cl(3.24%25.24%)、As(0.02%0.095%)、Cd(0.038%1.36%);方法检出限依次为105.2 ppm、4.6 ppm、47.3 ppm、198.1 ppm、4.5 ppm,相对标准偏差小于0.27%。     

菱镁矿制备特种硅钢级氧化镁的研究

介绍了一种由菱镁矿生产特种硅钢级氧化镁的工艺,讨论了轻烧粉乳液浓度、碳化时间、煅烧温度等反应条件对硅钢级氧化镁质量的影响,并得出较佳的工艺条件。     

丙烯直接氧化制环氧丙烷的清洁生产技术

指出了氯醇法和共氧化法的发展趋势,概述了丙烯催化环氧化合成环氧丙烷技术的研究进展,包括以分子氧、H2O2、原位合成H2O2和有机过氧化物为氧化剂的催化氧化法。同时对各种催化反应工艺、催化剂和催化反应机理进行了讨论,并对PO清洁生产技术的前景进行了展望。