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第九届全国氢能学术会议

作者： P.Nicotera M.Mathias R.Evans C.Wieser d.baker General Motors Corporation

＜正＞Carbon fiber papers（CFPs） possess several structure-specific requirements for application as gas diffusion media（dM） in PEM fuel *** CFP must demonstrate sufficient bending modulus,shear modulus,and incompressibility in order to achieve acceptably low flow field channel *** flow field-to-CFP electrical contact resistance must also be minimized. Furthermore,the microporous layer（MPL） coating on the CFP should penetrate into the

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谷物中纤维的测定

粮食加工 1978年第4期 23-28页

作者： d.baker 马仲登

采用三种方法测定谷物中的纤维:即粗纤维法,酸——洗涤纤维法,以及一种新的含缓冲剂的酸——洗涤纤维法。用新法测得的结果最高,因为它从样品中损失的纤维最少。这种方法看来大量的淀粉和蛋白质从样品中被除去。近来,对于植物性食品纤... 详细信息

采用三种方法测定谷物中的纤维:即粗纤维法,酸——洗涤纤维法,以及一种新的含缓冲剂的酸——洗涤纤维法。用新法测得的结果最高,因为它从样品中损失的纤维最少。这种方法看来大量的淀粉和蛋白质从样品中被除去。近来,对于植物性食品纤维成分的营养功能(在人们的饮食中),在测定食物纤维的分析化学上,引起了新的注意。事实上,在文献里记载的所有纤维资料,都是用粗纤维的方法测得的。它开始于十九世纪初期从它提出以来,仅有很小的修改。粗纤维是用1.25％硫酸和1.25％氢氧化钠溶液连续加热煮沸后留下的残留物。这种测定法,留下的物质在不同程度上结果偏低,因此,通常认为它是粗纤维值,不能表示食物纤维的准确含量,仅能作为粗略的指标。

关键词：纤维纤维法纤维素缓冲剂白质髓质

Cu-Based Materials for Enhanced C_(2+) Product Selectivity in Photo-/Electro-Catalytic CO_(2) Reduction: Challenges and Prospects

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Nano-Micro Letters 2024年第4期16卷 25-66页

作者： baker Rhimi Min Zhou Zaoxue Yan Xiaoyan Cai Zhifeng Jiang Institute for Energy Research School of Chemistry and Chemical EngineeringJiangsu UniversityZhenjiang 212013People’s Republic of China School of Materials Science and Physics China University of Mining and TechnologyXuzhou 221116People’s Republic of China

Carbon dioxide conversion into valuable products using photocatalysis and electrocatalysis is an effective approach to mitigate global environmental issues and the energy shortages. Among the materials utilized for catalytic reduction of CO_(2), Cu-based materials are highly advantageous owing to their widespread availability, cost-effectiveness, and environmental sustainability. Furthermore, Cu-based materials demonstrate interesting abilities in the adsorption and activation of carbon dioxide, allowing the formation of C_(2+) compounds through C–C coupling process. Herein, the basic principles of photocatalytic CO_(2) reduction reactions(PCO_(2)RR) and electrocatalytic CO_(2) reduction reaction(ECO_(2)RR) and the pathways for the generation C_(2+) products are introduced. This review categorizes Cu-based materials into different groups including Cu metal, Cu oxides, Cu alloys, and Cu SACs, Cu heterojunctions based on their catalytic applications. The relationship between the Cu surfaces and their efficiency in both PCO_(2)RR and ECO_(2)RR is emphasized. Through a review of recent studies on PCO_(2)RR and ECO_(2)RR using Cu-based catalysts, the focus is on understanding the underlying reasons for the enhanced selectivity toward C_(2+) products. Finally, the opportunities and challenges associated with Cu-based materials in the CO_(2) catalytic reduction applications are presented, along with research directions that can guide for the design of highly active and selective Cu-based materials for CO_(2) reduction processes in the future.

关键词： Photocatalytic CO_(2)reduction Cu-based materials Electrocatalytic CO_(2)reduction

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回转支承环设计的几个重要问题

起重运输机械 1985年第12期 50-55页

作者： J.Anderson d.baker 郑楼先

为了满足海上作业日益增长的重型起重任务的需要,在短期内应设计制造出新设备来。当然,陆上设备的使用经验被用来开发这类新设备。结果所形成的破坏促使有关当局把许多海上起重机的使用能力降低50%。

关键词：应力强度因子滚道变形能力学因子线弹性断裂力学脆性断裂力学裂纹长度回转支承圆角半径滚子滚动体裂纹尺寸最大应力应力腐蚀

WONCA研究论文摘要汇编(七)——轻度认知受损有氧运动效应:对照试验

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中国全科医学 2010年第10期13卷 1102-1102页

作者： Laura d.baker Laura L.Frank Karen Foster-Schubert 周淑新中国石油中心医院

目的检测有氧运动对认知和其他生物标记物相关的阿尔茨海默病病理,轻度认知受损老年人的作用,并评估作为反应预测指标的性别角色。设计6个月随机对照临床试验。机构:华盛顿西雅图后备军人事务Puget Sound健康照顾系统,临床研究所。参试... 详细信息

目的检测有氧运动对认知和其他生物标记物相关的阿尔茨海默病病理,轻度认知受损老年人的作用,并评估作为反应预测指标的性别角色。设计6个月随机对照临床试验。机构:华盛顿西雅图后备军人事务Puget Sound健康照顾系统,临床研究所。参试者:33名(17名女性)遗忘性轻度认知受损者,年龄55~85岁(平均78岁)。干预将参试者随机分配至高强度有氧运动或伸展运动对照组。有氧运动组采用了适应训练器的监测,心率储备的75%~85%,45~60min/d,4d/周,达6个月。对照组,除了保持了他们心率在他们心率储备的≤50%,按相同的日程表做伸展活动监察。研究前后,做了糖代谢和踏车试验,并采取双能X线吸收测

关键词：轻度认知受损有氧运动 WONCA 对照试验运动效应论文摘要随机对照临床试验汇编

High-quality assembled and annotated genomes of Nicotiana tabacum and Nicotiana benthamiana reveal chromosome evolution and changes in defense arsenals

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Molecular Plant 2024年第3期17卷 423-437页

作者： Jubin Wang Qingling Zhang Jeffrey Tung Xi Zhang dan Liu Yingtian deng Zhendong Tian Huilan Chen Taotao Wang Weixiao Yin Bo Lij Zhibing Lai Savithramma P.dinesh-Kumar Barbara baker Feng Li National Key Laboratory for Germplasm Innovation and Utilization for Fruit and Vegetable Horticultural Crops College of Horticulture and Forestry SciencesHuazhong Agricultural UniversityWuhanHubei 430070China Plant Gene Expression Center Department of Plant and Microbial BiologyUniversity of CaliforniaBerkeleyBerkeleyCA 94706USA College of Plant Science and Technology Huazhong Agricultural UniversityWuhanHubei 430070China College of Life Science and Technology Huazhong Agricultural UniversityWuhanHubei 430070China department of Plant Biology and The Genome Center College of Biological SciencesUniversity of CalforniaDavisDavisCA 95616USA The Key Laboratory of Horticultural Plant Genetic and Improvement of Jiangxi Province Institute of Biological ResourcesJiangxi Academy of SciencesNanchang 330299China institute of Vegetables and Flowers Jiangxi Academy of Agricultural SciencesNanchang 330200Chin Hubei Hongshan Laboratory WuhanHubei 430070China

Nicotiana tabacum and Nicotiana benthamiana are widely used models in plant biology ***,genomic studies of these species have *** we report the chromosome-level reference genome assemblies for *** and *** with an estimated 99.5%and 99.8%completeness,*** transcription start and termination site sequencing methods were developed and used for accurate gene annotation in *** analyses revealed evidence for the parental origins and chromosome structural changes,leading to hybrid genome formation of each ***,theantiviral silencinggenesRdR1,RdR6,dCL2,dCL3,andAGO2were lost from one or both subgenomes in ***,while both homeologs were kept in ***,the *** genome encodes fewer immune receptors and signaling components than that of *** find-ings uncover possible reasons underlying the hypersusceptible nature of *** developed the user-friendly Nicomics(http:/***/Nicomics/)web server to facilitate better use of Nicotiana genomic resources as well as gene structure and expression analyses.

关键词： Nicotiana tabacum Nicotiana benthamiana genomics evolution disease resistance NLR

A facile strategy for tuning the density of surface-grafted biomolecules for melt extrusion-based additive manufacturing applications

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Bio-design and Manufacturing 2024年第3期7卷 277-291页

作者： I.A.O.Beeren G.dos Santos P.J.dijkstra C.Mota J.Bauer H.Ferreira Rui L.Reis N.Neves S.Camarero-Espinosa M.B.baker L.Moroni department of Complex Tissue Regeneration MERLN Institute for Technology-Inspired Regenerative MedicineMaastricht University6229 ER MaastrichtThe Netherlands 3B’s Research Group I3Bs–Research Institute on BiomaterialsBiodegradables and BiomimeticsHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative MedicineUniversity of MinhoAveParkZona Industrial da Gandra4805-017 BarcoGuimarãesPortugal ICVS/3B’s-PT Government Associate Laboratory 4806-909 Braga/GuimarãesPortugal POLYMAT University of the Basque Country UPV/EHU20018 Donostia/San SebastiánSpain IKERBASQUE Basque Foundation for Science48009 BilbaoSpain

Melt extrusion-based additive manufacturing(ME-AM)is a promising technique to fabricate porous scaffolds for tissue engi-neering ***,most synthetic semicrystalline polymers do not possess the intrinsic biological activity required to control cell *** of biomolecules on polymeric surfaces of AM scaffolds enhances the bioactivity of a construct;however,there are limited strategies available to control the surface ***,we report a strategy to tune the surface density of bioactive groups by blending a low molecular weight poly(ε-caprolactone)5k(PCL5k)containing orthogonally reactive azide groups with an unfunctionalized high molecular weight PCL75k at different *** porous three-dimensional(3d)scaf-folds were then fabricated using a high weight percentage(75 wt.%)of the low molecular weight PCL *** a proof-of-concept test,we prepared films of three different mass ratios of low and high molecular weight polymers with a thermopress and reacted with an alkynated fluorescent model compound on the surface,yielding a density of 201-561 pmol/cm^(2).Subsequently,a bone morphogenetic protein 2(BMP-2)-derived peptide was grafted onto the films comprising different blend compositions,and the effect of peptide surface density on the osteogenic differentiation of human mesenchymal stromal cells(hMSCs)was *** two weeks of culturing in a basic medium,cells expressed higher levels of BMP receptor II(BMPRII)on films with the conjugated *** addition,we found that alkaline phosphatase activity was only significantly enhanced on films contain-ing the highest peptide density(i.e.,561 pmol/cm^(2)),indicating the importance of the surface *** together,these results emphasize that the density of surface peptides on cell differentiation must be considered at the cell-material ***,we have presented a viable strategy for ME-AM community that desires to tune the bulk and surface functionality via blending of(m

关键词： Additive manufacturing Blending Surface functionalization Surface density Click chemistry Human

Outpatient insulin use in type 2 diabetes mellitus and acute respiratory distress syndrome outcomes:A retrospective cohort study

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World Journal of Clinical Cases 2024年第17期12卷 2966-2975页

作者： Georges Khattar Samer Asmar Laurence Aoun Fares Saliba Shaza Almardini Saif Abu baker Catherine Hong Carolla El Chamieh Fadi Haddadin Toni Habib Omar Mourad Zeina Morcos Fatema Arafa Jonathan Mina Khalil El Gharib Mohammad Aldalahmeh Salman Khan Elie Bou Sanayeh department of Medicine Holy Spirit University of KaslikJounieh 00000Lebanon department of Internal Medicine Staten Island University HospitalStaten IslandNY 10305United States Public Heath and Biostatistics Independent ResearchBeirut 0000Lebanon department of Medicine Lebanese UniversityBeirut 00000Lebanon department of Medicine University of BalamandBeirut 00000Lebanon department of Medicine Lebanese American UniversityBeirut 00000Lebanon department of Medicine Northwell Health Staten Island University HospitalNew YorkNY 10305United States

BACKGROUNd The impact of type 2 diabetes mellitus(T2dM)on acute respiratory distress syndrome(ARdS)is debatable.T2dM was suspected to reduce the risk and complications of ***,during coronavirus disease 2019(COVId-19),T2dM predisposed patients to ARdS,especially those who were on insulin at *** evaluate the impact of outpatient insulin use in T2dM patients on non-COVId-19 ARdS *** We conducted a retrospective cohort analysis using the Nationwide Inpatient Sample *** patients diagnosed with ARdS were stratified into insulin-dependent diabetes mellitus(dM)(IddM)and non-insulindependent dM(NIddM)*** applying exclusion criteria and matching over 20 variables,we compared cohorts for mortality,duration of mechanical ventilation,incidence of acute kidney injury(AKI),length of stay(LOS),hospitalization costs,and other clinical *** Following 1:1 propensity score matching,the analysis included 274 patients in each ***,no statistically significant differences emerged between the IddM and NIddM groups in terms of mortality rates(32.8%vs 31.0%,P=0.520),median hospital LOS(10 d,P=0.537),requirement for mechanical ventilation,incidence rates of sepsis,pneumonia or AKI,median total hospitalization costs,or patient disposition upon *** Compared to alternative anti-diabetic medications,outpatient insulin treatment does not appear to exert an independent influence on in-hospital morbidity or mortality in diabetic patients with non-COVId-19 ARdS.

关键词： Acute respiratory distress syndrome Type 2 diabetes mellitus Insulin Length of stay Mortality Endotracheal intubation Acute kidney injury Coronavirus disease 2019

Effect of Vanadium Microalloying on the HAZ Microstructure and Properties of Low Carbon Steels

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Journal of Iron and Steel Research(International) 2011年第S1期18卷 393-403页

作者： Milbourn d.baker T N Vanitec ltd Winterton HouseHigh StreetWesterhamKentTN16 1AQUK Metallurgy and Engineering Materials Group Department of Mechanical EngineeringUniversity of StrathclydeG1 1XNUK

Four Steels,C-Mn-0.05V,C-Mn-0.11V,C-Mn-0.03Nb and C-Mn were subjected to heat treatment to simulate the microstructure of a coarse grained heat affected zone (CGHAZ) and an intercritically reheated coarse grained heat affected zone (ICCGHAZ).This involved reheating to 1350°C,rapid cooling (Δt 8/5 =24s) to room temperature and then reheating to either 750°C or 800°*** toughness of the HAZs was assessed using both Charpy and CTOd *** features were characterised by optical,scanning` and transmission electron *** examinations of the Charpy and CTOd specimens were carried out to understand the micromechanism of fracture under different microstructural and test *** CGHAZ toughness was similar for the steels except that Steel C-Mn-0.05V had a slightly lower ITT compared to the *** toughness deteriorated in the ICCGHAZ for all the steels,again Steel C-Mn-0.05V had a superior toughness compared to the other three steels in both ICCGHAZ *** the level of vanadium to 0.11% caused a decrease in ICCGHAZ *** C-Mn-Nb exhibited a greater degradation of impact toughness after the intercritical *** presence of M-A constituents was the dominant factor in determining the toughness of the *** size and area fraction of the M-A constituents were the smallest in Steel *** vanadium level to 0.11% resulted in a greater area fraction of the M-A constituents,larger average and maximum sizes of M-A particles,and significantly more fields containing the *** addition of 0.031% Nb produced the largest M-A particles and the greatest area fraction for the steels tested.

关键词： vanadium microalloyed steel coarse grained heat affected zone intercritically reheated coarse grained heat affected zone martensite-austenite constitute heat affect zone toughness