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Three-stage pyrolysis–steam reforming–water gas shift processing of household,commercial and industrial waste plastics for hydrogen production

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Waste Disposal and Sustainable Energy 2024年第1期6卷 25-37页

作者： Rayed Alshareef robert Sait-stewart Mohamad A.Nahil Paul T.Williams School of Chemical and Process Engineering University of LeedsLeedsLS29JTUK

Five common single plastics and nine different household,commercial and industrial waste plastics were processed using a three-stage(i)pyrolysis,(ii)catalytic steam reforming and(iii)water gas shift reaction system to produce *** of plastics produces a range of different hydrocarbon species which are subsequently catalytically steam reformed to produce H_(2)and CO and then undergo water gas shift reaction to produce further H_(2).The process mimics the commercial process for hydrogen production from natural *** of the single polyalkene plastics(high-density polyethylene(HDPE),low-density polyethylene(LDPE),and polypropylene(PP))produced similar H_(2)yields between 115 mmol and 120 mmol per gram *** though PS produced an aromatic product slate from the pyrolysis stage,further stages of reforming and water gas shift reaction produced a gas yield and composition similar to that of the polyalkene plastics(115 mmol H_(2)per gram plastic).PET gave significantly lower H_(2)yield(41 mmol per gram plastic)due to the formation of mainly CO,CO_(2)and organic acids from the pyrolysis stage which were not conducive to further reforming and water gas shift reaction.A mixture of the single plastics typical of that found in municipal solid waste produced a H_(2)yield of 102 mmol per gram *** the gas yields and composition from the single plastics enabled an estimation of the yields from a simulated waste plastic mixture and a‘real-world’waste plastic mixture to be *** different household,commercial and industrial waste plastic mixtures produced H_(2)yields between 70 mmol and 107 mmol per gram *** H_(2)yield and gas composition from the single waste plastics gave an indication of the type of plastics in the mixed waste plastic samples.

关键词： Waste plastic Hydrogen Catalyst Pyrolysis reforming Water gas shift

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Body mass index and mortality in patients with schizophrenia spectrum disorders:a cohort study in a South London catchment area

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General Psychiatry 2022年第5期35卷 338-346页

作者： Jianhua Chen Gayan Perera Hitesh Shetty Matthew Broadbent Yifeng Xu robert stewart Psychological Medicine Institute of PsychiatryPsychology&NeuroscienceKing's College LondonLondonUK Shanghai Clinical Research Center for Mental Health Shanghai Key Laboratory of Psychotic DisordersShanghai Mental Health CenterShanghai Jiao Tong University School of MedicineShanghaiChina Biomedical Research Centre South London and Maudsley NHS Foundation TrustLondonUK

Background People with schizophrenia have a high premature mortality *** is a key potential underlying risk factor that is relatively unevaluated to *** In this study,we investigated the associations of routinely recorded body size with all-cause mortality and deaths from common causes in a large cohort of people with schizophrenia spectrum *** We assembled a retrospective observational cohort using data from a large mental health service in South *** followed all patients over the age of 18 years with a clinical diagnosis of schizophrenia spectrum disorders from the date of their first recorded body mass index(BMI)between 1 January 2007 and 31 March *** Of 11900 patients with a BMI recording,1566 *** Cox proportional hazards regression models,after adjusting for sociodemographic,socioeconomic variables and comorbidities,indicated that all-cause mortality was only associated with underweight status compared with healthy weight status(hazard ratio(HR):1.33,95%confidence interval(CI):1.01 to 1.76).Obesity(HR:1.24,95%CI:1.01 to 1.52)and morbid obesity(HR:1.54,95%CI:1.03 to 2.42)were associated with all-cause mortality in the 18–45 years age range,and obesity was associated with lower risk(HR:0.66,95%CI:0.50 to 0.87)in those aged 65+*** mortality was raised in underweight individuals(HR:1.93,95%CI:1.03 to 4.10)and respiratory disease mortality raised in those with morbid obesity(HR:2.17,95%CI:1.02 to 5.22).Conclusions Overall,being underweight was associated with higher mortality in this disorder group;however,this was potentially accounted for by frailty in older age groups,and obesity was a risk factor for premature mortality in younger *** impact of obesity on life expectancy for people with schizophrenia spectrum disorders is clear from our findings.A deeper biological understanding of the relationship between these diseases and schizophrenia will help improve clinical practice.

关键词： schizophrenia patients routine

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Npy deletion in an alcohol non-preferring rat model elicits differential effects on alcohol consumption and body weight

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Journal of Genetics and Genomics 2016年第7期43卷 421-430页

作者： Bin Qiu Richard L.Bell Yong Cao Lingling Zhang robert B.stewart Tamara Graves Lawrence Lumeng Weidong Yong Tiebing Liang Institute of Laboratory Animal Science Chinese Academy of Medical Sciences & Peking Union Medical College Beijing 100021 China Department of Psychiatry Indiana University School of Medicine Indianapolis IN 46202 USA Department of Gastroenterology Indiana University School of Medicine Indianapolis IN 46202 USA Department of Psychology Purdue School of Science Indiana University-Purdue University of Indianapolis Indianapolis IN 46202 USA Experimental Medicine Center The First Affiliated Hospital of Sichuan Medical University Luzhou 646000 China

Neuropeptide Y（NPY） is widely expressed in the central nervous system and influences many physiological *** is located within the rat quantitative trait locus（QTL） for alcohol preference on chromosome ***-nonpreferring（NP） rats consume very little alcohol,but have significantly higher NPY expression in the brain than alcohol-preferring（P） *** capitalized on this phenotypic difference by creating an Npy knockout（KO） rat using the inbred NP background to evaluate NPY effects on alcohol *** finger nuclease（ZNF） technology was applied,resulting in a 26-bp deletion in the Npy ***-PCR,Western blotting and immunohistochemistry confirmed the absence of Npy mRNA and protein in KO *** consumption was increased in Npy＋/- but not Npy-/- rats,while Npy-/- rats displayed significantly lower body weight when compared to Npy^（＋/＋） *** whole brain tissue,expression levels of Npy-related and other alcohol-associated genes,Npy1 r,Npy2r,Npy5 r,Agrp,Mc3 r,Mc4r,Crh and CrMr,were significantly greater in Npy-/- rats,whereas Pome and Crhr2 expressions were highest in Npy＋/- *** findings suggest that the NPY-system works in close coordination with the melanocortin（MC） and corticotropin-releasing hormone（CRH） systems to modulate alcohol intake and body weight.

关键词： Knockout rat Alcohol drinking behavior NPY and receptors CRH and receptors Melanocortin and receptors BDNF

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勘探地震层析基础(续)

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国外油气勘探 1994年第5期6卷 611-640页

作者： robert R.stewart 吴律

第三章应用在本章中,我们将根据一些地质现场条件,研究如何利用各种几何观测形式和层析重建方法,来解决地球物理问题。目前有许多文章是基于地震旅行时反演作为求地震速度的方法。这些速度图可用于完备的地质模型或为进一步处理提供速... 详细信息

第三章应用在本章中,我们将根据一些地质现场条件,研究如何利用各种几何观测形式和层析重建方法,来解决地球物理问题。目前有许多文章是基于地震旅行时反演作为求地震速度的方法。这些速度图可用于完备的地质模型或为进一步处理提供速度控制。还有一些研究成果已经用反射振幅产生地下层剖面。此外,通常使用的震源和接收器的几何方式有:井对井,地面对井,地面对地面。当然,对被测岩块覆盖角越大,重建成像的可靠性也就越大。

关键词：地震勘探 CT 油气勘探

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Machine learning for energy-water nexus: challenges and opportunities

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Big Earth Data 2018年第3期2卷 228-267页

作者： Syed Mohammed Arshad Zaidi Varun Chandola Melissa R.Allen Jibonananda Sanyal robert N.stewart Budhendra L.Bhaduri Ryan A.McManamay Computer Science and Engineering Department University at BuffaloBuffaloNYUSA Computer Science and Engineering Division Oak Ridge National LaboratoryOak RidgeTNUSA Environmental Sciences Division Oak Ridge National LaboratoryOak RidgeTNUSA Urban Dynamics Institute Oak Ridge National LaboratoryOak RidgeTNUSA

Modeling the interactions of water and energy systems is important to the enforcement of infrastructure security and system *** this end,recent technological advancement has allowed the production of large volumes of data associated with functioning of these *** are beginning to see that statistical and machine learning techniques can help elucidate characteristic patterns across these systems from water availability,transport,and use to energy generation,fuel supply,and customer demand,and in the interde-pendencies among these systems that can leave these systems vul-nerable to cascading impacts from single *** this paper,we discuss ways in which data and machine learning can be applied to the challenges facing the energy-water nexus along with the potential issues associated with the machine learning techniques *** then survey machine learning techniques that have found application to date in energy-water nexus *** con-clude by outlining future research directions and opportunities for collaboration among the energy-water nexus and machine learning communities that can lead to mutual synergistic advantage.

关键词： Machine learning data energy-water nexus

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海洋与气候

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自然与资源 1990年第4期26卷 28-32页

作者： robert W.stewart

海洋在气修系统中所起的作用与大气的作用相辅相成，并具有类似的重要性，海洋储存热量，然后往往在另一个地方将其释放，既吸收又释放二氧化碳。因此，要了解和预测气候的特性，就必须了解和预测海洋的特性，而对此又需要对海洋进行模... 详细信息

海洋在气修系统中所起的作用与大气的作用相辅相成，并具有类似的重要性，海洋储存热量，然后往往在另一个地方将其释放，既吸收又释放二氧化碳。因此，要了解和预测气候的特性，就必须了解和预测海洋的特性，而对此又需要对海洋进行模拟和监测。

关键词：海洋气候系统模拟监测

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寻求在美国的产品注册——数据要求、数据报偿，TASKFORCES及其他

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中国农药 2010年第3期6卷 10-17页

作者：陈虹 robert stewart Arthur Lawyer 美国技术科学集团公司（TSG）

1引言在美国，农药注册是由美国国家环保署（EPA）管理的。每一种农药产品，包括原药或制剂，都必须满足涉及范围很广的数据要求才能获得注册许可。对于一种新的农药产品，

关键词：农药产品数据要求注册美国数据报

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朱利安·布莱恩研究:电影人、旅行家、兼职记者

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新闻春秋 2014年第1期 13-18页

作者： robert stewart 范冬晶美国俄亥俄州立大学新闻学院中国人民大学新闻学院

本文介绍了美国摄影家、旅行家、兼职记者朱利安·布莱恩的经历与成就。布莱恩在1937年用七周的时间深入德国,拍摄了纪录片《纳粹德国内幕》,全面反映了纳粹统治下的德国。这部纪录片在美国大受欢迎,成为人们了解纳粹德国的重要途径。... 详细信息

本文介绍了美国摄影家、旅行家、兼职记者朱利安·布莱恩的经历与成就。布莱恩在1937年用七周的时间深入德国,拍摄了纪录片《纳粹德国内幕》,全面反映了纳粹统治下的德国。这部纪录片在美国大受欢迎,成为人们了解纳粹德国的重要途径。此后两年,布莱恩进行了全美巡回演讲,在各地放映他的纪录片,并与听众分享他在德国的见闻感受。1939年,纳粹德国侵略波兰。布莱恩再赴欧洲,冒着生命危险、克服重重困难留在华沙两周,记录下了被纳粹蹂躏的华沙城的景象。他为世界记录下了战争给人带来的伤痛;而他的记录方式包括电影、黑白和彩色照片、电台广播、文章以及公共演讲。

关键词：朱利安·布莱恩纳粹德国华沙纪录片

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海洋与气候

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科学对社会的影响 1993年第2期42卷 47-53页

作者： robert W.stewart 桔心国际科学联合会理事会

海洋在气候系统中起着作用,气候系统与大气系统是互补的,与大气系统的重要性不相上下。海洋储存热量,随后又往往在另一处释放出来,并且能吸收和释放二氧化碳。因此,要了解气候,就需要了解和预测海洋的性状,还要对海洋做模拟和监测。

关键词：海洋气候气候系统海洋监视系统

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A survey of analytical methods for inclusion in a new energy-water nexus knowledge discovery framework

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Big Earth Data 2018年第3期2卷 197-227页

作者： Melissa R.Allen Syed Mohammed Arshad Zaidi Varun Chandola April M.Morton Christa M.Brelsford Ryan A.McManamay Binita KC Jibonananda Sanyal robert N.stewart Budhendra L.Bhaduri Computational Science and Engineering Division Oak Ridge National LaboratoryOak RidgeTNUSA Computer Science and Engineering Department University at BuffaloBuffaloNYUSA Environmental Sciences Division Oak Ridge National LaboratoryOak RidgeTNUSA Urban Dynamics Institute Oak Ridge National LaboratoryOak RidgeTNUSA

The energy-water nexus,or the dependence of energy on water and water on energy,continues to receive attention as impacts on both energy and water supply and demand from growing popula-tions and climate-related stresses are evaluated for future infra-structure *** in water and energy demand are related to changes in regional temperature,and precipitation extremes can affect water resources available for energy genera-tion for those regional ***,the vulnerabilities to the energy and water nexus are beyond the physical infrastruc-tures themselves and extend into supporting and interdependent *** of these vulnerabilities relies on the integration of the disparate and distributed data associated with each of the infrastructures,environments and populations served,and robust analytical methodologies of the data.A capability for the deployment of these methods on relevant data from multiple components on a single platform can provide actionable informa-tion for interested communities,not only for individual energy and water systems,but also for the system of systems that they ***,we survey the highest priority data needs and analy-tical methods for inclusion on such a platform.

关键词： Energy-water nexus data analytics web portal

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