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| 1 | 对气垫流浆箱自动调节系统的评估显示文摘本文建立了一个描述造纸机流浆箱的数学模型及其自动调节系统的计算机模拟系统。利用这个模型及模拟系统能对各种流浆箱自动调节系统进行动态模拟和质量评估。对气垫流浆箱的四种不同调节方案,进行模拟及其结果的比较和评估后发现:方案一(用总压控制进浆量,用浆位控制空气流出量)优于方案二(用总压控制空气流出量,而用浆位控制进浆量),方案三(在方案一基础上增加了内溢流)更好;在方案四中,由于加入了浆速一网速比的串级调节系统,能有效地克服网速干扰对浆速-网速比及纸页定量的影响。 | 刘焕彬 Louis L.Edwards | 1989 | 中国造纸1989，8，3： | 18 |
| 2 | Micromolded honeycomb scaffold design to support the generation of a bilayered RPE and photoreceptor cell construct显示文摘Age-related macular degeneration(AMD)causes blindness due to loss of retinal pigment epithelium(RPE)and photoreceptors(PRs),which comprise the two outermost layers of the retina.Given the small size of the macula and the importance of direct contact between RPE and PRs,the use of scaffolds for targeted reconstruction of the outer retina in later stage AMD and other macular dystrophies is particularly attractive.We developed microfabricated,honeycomb-patterned,biodegradable poly(glycerol sebacate)(PGS)scaffolds to deliver organized,adjacent layers of RPE and PRs to the subretinal space.Furthermore,an optimized process was developed to photocure PGS,shortening scaffold production time from days to minutes.The resulting scaffolds robustly supported the seeding of human pluripotent stem cell-derived RPE and PRs,either separately or as a dual celllayered construct.These advanced,economical,and versatile scaffolds can accelerate retinal cell transplantation efforts and benefit patients with AMD and other retinal degenerative diseases. | In-Kyu Lee Ruosen Xie Agustin Luz-Madrigal Seunghwan Min Jingcheng Zhu Jiahe Jin Kimberly L.Edwards M.Joseph Phillips Allison L.Ludwig David M.Gamm Shaoqin Gong Zhenqiang Ma | 2023 | Bioactive Materials2023，，12： | 1 |
| 3 | Demonstration of Covalent Sidewall Functionalization of Single Wall Carbon Nanotubes by NMR Spectroscopy:Side Chain Length Dependence on the Observation of the Sidewall sp^(3)Carbons显示文摘Carboxylic acid-functionalized single walled carbon nanotubes(SWNTs)prepared via the reaction of an amino acid,NH2(CH2)nCO2H where n=1(glycine,GLY),5(6-aminohexanoic acid,AHA),10(11-aminoundecanoic acid,AUDA),with fl uorinated single walled carbon nanotubes(F-SWNTs)have been characterized by MAS 13C NMR spectroscopy.The ease of observing the aliphatic CH2 groups and the resolution of the signal are dependent on the length of the amino acid’s aliphatic chain.We have proposed that where substituent chains are short(making NMR data collection difficult)chemical modification to extend the chain length should alleviate analysis problems.In this regard,we have investigated the esterifi cation of the carboxylic acid termini.The amino acid-functionalized SWNTs were esterified with an appropriate alcohol to ensure parity of the overall substituent length,i.e.,GLY-SWNT(C1)+1-dodecanol(C_(12))=DOD-GLY-SWNT(1),AHA-SWNT(C_(5))+1-octanol(C_(8))=OCT-AHA-SWNT(2),and AUDA-SWNT(C_(10))+1-propanol(C_(3))=PRO-AUDA-SWNT(3).The 13C NMR shift for the sp3 nitrogen-substituted carbon atoms of the SWNT sidewall is observed atδ≈75 ppm.Increasing the length of SWNT sidewall functional groups enhances the ability to observe the sidewall sp^(3)carbon.The methylene carbon signal intensity is less attenuated in the dipolar dephasing spectrum of the ester-functionalized SWNTs than their associated amino acid derivatives,suggesting more motional freedom of the side chain in the solid state.The confi rmation of the dipolar dephasing spectral effects was assisted by the characterization of the ester of AUDA-SWNT with 1,3-propanediol:PPD-AUDA-SWNT(4). | Liling Zeng Lawrence B.Alemany Christopher L.Edwards Andrew R.Barron | 2008 | Nano Research2008，1，1： | 1 |
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