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Nano Research 2019年第6期12卷 1381-1388页

作者： Haitao Cui Shida Miao Timothy Esworthy Se-jun Lee Xuan Zhou Sung Yun Hann Thomas J.Webster brent T.Harris Lijie Grace Zhang Department of Mechanical and Aerospace Engineering The George Washington UniversityWashingtonDC 20052USA Department of Chemical Engineering Northeastern UniversityBostonMA 02115USA Department of Neurology and Pathology Georgetown UniversityWashingtonDC 20007USA Departments of Electrical and Computer Engineering The George Washington UniversityWashingtonDC 20052USA Department of Biomedical Engineering The George Washington UniversityWashingtonDC 20052USA Department of Medicine The George Washington UniversityWashingtonDC 20052USA

Four-dimensional (4D) printing is an emerging and highly innovative additive manufacturing process by which to fabricate pre-designed,self-assembly structures with the ability to transform over ***,one of the critical challenges of 4D printing is the lack of advanced 4D printing systems that not only meet all the essential requirements of shape change but also possess smart,dynamic capabilities to spatiotemporally and instantly control the shape-transformation ***,we present a facile 4D printing platform which incorporates nanomaterials into the conventional stimuli-responsive polymer,allowing the 4D printed object to achieve a dynamic and remote controlled,on-time and position shape transformation.A proof-of-concept 4D printed brain model was created using near-infrared light (NIR) responsive nanocomposite to evaluate the capacity for controllable 4D transformation,and the feasibility of photothermal stimulation for modulating neural stem cell *** novel 4D printing strategy can not only be used to create dynamic 3D patterned biological structures that can spatiotemporally control their shapes or behaviors of transformation under a human benign stimulus (NIR),but can also provide a potential method for building complex self-morphing objects for widespread applications.

关键词： near-infrared light responsive four-dimensional (4D) printing dynamically and remotely controllable graphene brain neural stem cell

Two-dimensional titanium carbonitride MXene as a highly efficient electrocatalyst for hydrogen evolution reaction

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Materials Reports(Energy) 2022年第1期2卷 88-95页

作者： Kun Liang Anika Tabassum Manish Kothakonda Xiaodong Zhang Ruiqi Zhang Brianna Kenney brent D.Koplitz Jianwei Sun Michael Nagui Department of Physics and Engineering Physics Tulane UniversityNew OrleansLA70118USA Department of Chemistry Tulane UniversityNew OrleansLA70118USA

In this paper,we report,for the first time,on the electrochemical catalytic activity of 2D titanium carbonitride MXene for hydrogen evolution reaction(HER).According to our study,2D titanium carbonitride exhibited much higher electrocatalytic activity than its carbide analogues,achieving an onset overpotential of 53 mV and Tafel slope of 86 mV dec^(-1),superior to the titanium carbide with onset overpotential of 649 mV and Tafel slope of 303 mV dec^(-1).The obtained onset overpotential for 2D titanium carbonitride is lower than those of all the reported transition metal carbides MXene catalysts without additives,so *** functional theory calculations were conducted to further understand the electrochemical *** calculation results show that a greater number of occupied states are active for Ti_(3)CNO_(2),revealing free energy for the adsorption of atomic hydrogen closer to 0 than that of Ti_(3)C_(2)O_(2).Both experimental and calculation studies demonstrate the excellent electrocatalytic behavior of titanium *** investigation of 2D titanium carbonitride opens up a promising paradigm for the conscious design of high-performance non-precious metal catalyst for hydrogen generation.

关键词： Two-dimensional Titanium carbonitride MXene Nanosheets Hydrogen evolution Electrocatalyst Density functional theory calculation

塔里木盆地跃参地区YJ1X井超深层油藏演化

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石油勘探与开发 2022年第2期49卷 262-273页

作者：杨鹏刘可禹 LI Zhen MCINNES brent Ian Alexander 刘建良中国石油大学(华东)深层油气重点实验室山东青岛266580 海洋国家实验室海洋矿产资源评价与探测技术功能实验室山东青岛266071 John de Laeter Centre Faculty of Science and EngineeringCurtin UniversityPerth WA 6485Australia

基于原位方解石U-Pb定年、原油与储集岩烃类地球化学特征对比以及流体包裹体分析,恢复塔里木盆地塔北隆起西南部跃参地区YJ1X井奥陶系一间房组超深层油藏的充注与演化过程。研究结果表明:①原油、游离油以及包裹体油具有相似的地球化学... 详细信息

基于原位方解石U-Pb定年、原油与储集岩烃类地球化学特征对比以及流体包裹体分析,恢复塔里木盆地塔北隆起西南部跃参地区YJ1X井奥陶系一间房组超深层油藏的充注与演化过程。研究结果表明:①原油、游离油以及包裹体油具有相似的地球化学特征,其对应的烃源岩在相同的沉积环境中形成;②原油、游离油以及包裹体油具有相似的成熟度,计算得到的等效镜质体反射率值为0.80%~0.96%;③储集层中识别出两种不同类型的油包裹体组合,其中Ⅰ类代表充注过程中最初进入圈闭、气体相对饱和的原油,Ⅱ类代表油藏发生轻微轻烃泄漏后残留的欠饱和原油;④该油藏在距今约425 Ma的早泥盆世发生过1期油充注,尽管在中泥盆世发生过部分轻烃泄漏,但之后一直保存完好。该研究表明在盖层发育良好、构造相对稳定的含油气盆地超深层中存在潜在的古老油气藏,可为下步的超深层油气勘探提供借鉴。

关键词：油藏保存方解石U-Pb定年流体包裹体奥陶系超深层碳酸盐岩油藏塔里木盆地

The iPhone on Training Wheels For Steve Jobs and his touchy-feely telephone,it's been a bumpy ride

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国际经济合作 2007年第12期 1-1页

作者： brent Schlender

Nearly five months have passed since Steve Jobs unleashed his flashy i-Phone upon the world,and the sleek,do-everything gadget has met his ambi-tious initial sales targets and then some-so far,more than 1.5

关键词： iPhone 音乐手机苹果公司创新

Thyroid Hormone and Brain Development

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Thyroid Hormone and Brain Development

中华医学会第十三次全国内分泌学学术会议

作者： Gregory A.brent Departments of Medicine and Physiology David Geffen School of Medicine at UCLALos AngelesCAUSA

Thyroid hormone is essential for normal brain development,as well as brain function in the *** hormone acts on all brain areas,with well-described actions on the cortex and cerebellum,as well as the pituitary and sensory development of the retina and inner *** defects in sensory processing seen in children,appropriately diagnosed and treated for congenital hypothyroidism

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Git软件开发实战

作者： (美)brent Laster

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个体的专门化、集体的适应和环境变化的速度

心理发展与教育 1991年第3期7卷 29-33页

作者： Sandor.B.brent 申继亮美国韦恩州立大学心理系

在高级有机体发展史和低级有机体发展史之间存在着一种复杂的辩证关系。这种辩证关系对于我们理解遗传与环境的关系和“代沟”问题都会有所启发,所以探讨这一问题对当代发展心理学有着重要意义。一。

关键词：有机体环境条件发展过程发展心理学代沟专门化相互关系环境变化模式成年人

低维生素D水平被当作癌症危险因子新的研究证据不支持补充维生素D能够预防癌症

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英国医学杂志中文版 2018年第2期21卷 65-66页

作者： Despoina Manousaki J brent Richards 任倩 Centre for Clinical Epidemiology Department of Epidemiology Lady Davis Institute for Medical ResearchJewish GeneralHospital McGill UniversityMontreal QuebecCanada Departments of Medicine Human GeneticsEpidemiology and Biostatistics JewishGeneral HospitalMcGill UniversityMontreal QuebecCanada Department of Twin Research and Genetic Epidemiology King's College LondonLondon UK 北京大学人民医院内分泌科

尽管仍存在争议，但是目前初级预防依然是临床上最有效的降低癌症负担的方式。其中一种很有潜力的策略就是治疗维生素D缺乏症，因为流行病学和动物实验研究发现低水平维生素D和癌症的风险增高相关2-30而且维生素D缺乏症患者比例达到总... 详细信息

尽管仍存在争议，但是目前初级预防依然是临床上最有效的降低癌症负担的方式。其中一种很有潜力的策略就是治疗维生素D缺乏症，因为流行病学和动物实验研究发现低水平维生素D和癌症的风险增高相关2-30而且维生素D缺乏症患者比例达到总人群的40％。并且很容易通过简单的血液检测进行诊断，

关键词：低维生素D 癌症预防措施临床研究

The Effects of 5 Weeks of Leg-Drive Training on Bench Press Performance in Recreationally-Trained,College-Age Men

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Journal of Science in Sport and Exercise 2022年第3期4卷 231-236页

作者： Jacob K.Gardner Justin T.Chia brent M.Peterson Kelsey L.Miller Department of Kinesiology and Health Science Biola University13800 Biola AveLa MiradaCA 90639USA Department of Health and Human Development Western Washington University516 High StreetBellinghamWA 98225USA

Introduction The bench press is commonly used to measure upper-body *** much emphasis has been placed on the upper-body,little is known about how the lower-body can play a role in bench press ***-drive is a technique that includes flexing the knee so the feet line up posterior to the knee joint,while simultaneously contracting the knee extensors isometrically during the *** purpose of this study was to compare strength characteristics of lifters in a standard bench press versus a leg-drive bench press over the course of 5-weeks of *** Twenty-three recreationally active males(age:22.4±2.1 years,height:175.0±5.9 cm,mass:78.4±9.5 kg)were randomized into a standard bench or leg-drive bench press *** performed four sets to failure,two times per week for five *** of interests were training volume and 1-repetition maximum(1RM)*** training volume,a 2×5(group×week)repeated measures analysis of variance(RMANOVA)was *** the 1RM’s,a 2×2×2(group×press type×time)RMANOVA was used.A priori alpha levels were set to *** Over time,both groups showed an approximate 6%increase in 1RM *** volume for week 4 was 5.6%less than week 5,but was not different from weeks 1 through *** between-group differences were observed for 1RM strength or training *** This results of this work indicates that 5 weeks of leg-drive training is effective in increasing 1RM strength,but was not more effective than standard bench press ***,lifters should choose either lifting style based on personal preference.

关键词： Chest press Lower-body Weight lifting Isometric contraction