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漆酶介体体系改性的三倍体毛白杨APMP浆漂白工艺的优化

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纸和造纸 2011年第4期30卷 58-60页

作者：崔红艳刘玉杨桂花黄峰 lucian Lucia 山东轻工业学院山东省制浆造纸科学与技术重点实验室山东济南250353 山东大学微生物技术国家重点实验室山东济南250100 北卡罗来纳州立大学林产科学与生物材料实验室

研究探讨三倍体毛白杨碱性过氧化氢机械浆由漆酶介体体系进行生物改性和过氧化氢漂白后的各种主要的影响因素。利用LMS体系对APMP纸浆进行改性的最佳工艺条件为:在通氧气的条件下,漆酶用量2U·g-1,介体(HBT)用量0.5%(对绝干浆),浆浓4.0%... 详细信息

研究探讨三倍体毛白杨碱性过氧化氢机械浆由漆酶介体体系进行生物改性和过氧化氢漂白后的各种主要的影响因素。利用LMS体系对APMP纸浆进行改性的最佳工艺条件为:在通氧气的条件下,漆酶用量2U·g-1,介体(HBT)用量0.5%(对绝干浆),浆浓4.0%,温度50℃,反应时间60min,pH值5.0。优化后漂白的最佳工艺条件为:NaOH4%(质量分数,下同),H2O25%,Na2SiO35%,MgSO40.1%,EDTA(乙二胺四乙酸)0.5%,浆浓10%,漂白温度70℃,漂白时间1.5h。和对照浆相比,经过漆酶介体和漂白处理后的APMP的物理强度性能有了很大程度的改善。

关键词： APMP 漆酶介体体系过氧化氢漂白

Mechanochemical Synthesis and Characterization of Molybdenum Dioxide-Hematite Nanostructures with Different Molarities

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Journal of Minerals and Materials Characterization and Engineering 2018年第6期6卷 587-600页

作者： Matthew Knauss Felicia Tolea Mihaela Valeanu lucian Diamandescu Richard Trotta Kelly Wood Agnieszka Grabias Monica Sorescu Department of Physics Duquesne University Pittsburgh USA Department of Materials Science National Institute of Materials Physics Bucharest-Magurele Romania Department of Materials Science Institute of Electronic Materials Technology Warsaw Poland

xMoO2-(1-x)α-Fe2O3 nanoparticle system with molarities x = 0.1, 0.3, 0.5 and 0.7 was successfully synthesized by mechanochemical activation of MoO2 and α-Fe2O3 mixtures for 0 - 12 hours of ball milling time. X-ray powder diffraction (XRD), Mössbauer spectroscopy and magnetic measurements were used to study the phase evolution of the molybdenum dioxide-hematite nanoparticle system under the mechanochemical activation process. Rietveld refinement of the XRD patterns yielded the values of the crystallite size and lattice parameters as function of milling times and indicated the presence of Mo-substituted hematite and Fe-doped molybdenum dioxide at long milling times. The Mössbauer studies yielded the magnetic hyperfine fields and the relative abundance of a quadrupole-split doublet as function of the milling time for all molar concentrations involved. Recoilless fraction was determined using our dual absorber method and was found to decrease with increasing ball milling time. Magnetic measurements recorded at 5 and 300 K in an applied magnetic field of 50,000 Oe showed the magnetic properties in the antiferromagnetic and canted ferromagnetic states. The Morin transformation was evidenced by zero-field cooling-field cooling (ZFC-FC) measurements in a magnetic field of 200 Oe.

关键词： Milling Spectroscopy Magnetic Properties

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光刻技术与光刻机

中国集成电路 2004年第8期13卷 79-80,50页

作者： Modern Xu lucian Liu SMICFab1 Litho EE1 SMICFab1 Litho EE1

一、简介光刻技术(Lithgraphy)被广泛运用于当今半导体制程中.光刻技术可以用近紫外光(Near UltraViolet,NUV)、中紫外光(Mid UV,MUV)、深紫外光(Deep UV,DUV)、真空紫外光(Vacuum UV,VUV)、极短紫外光(Extreme UV,EUV)、X-光(X-Ray)等... 详细信息

关键词：光刻技术光刻机 EUV 半导体制程 VUV 紫外光光刻胶真空紫外照射

Real-time sono-elastography in the diagnosis of diffuse liver diseases

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World Journal of Gastroenterology 2010年第14期16卷 1720-1726页

作者： Dan Ionut Gheonea Adrian S ǎftoiu Tudorel Ciurea Florin Gorunescu Sevastita Iordache Gabriel lucian Popescu Smaranda Belciug Marina Gorunescu Larisa Sǎndulescu Research Center of Gastroenterology and Hepatology University of Medicine and Pharmacy Craiova 200349 Romania Department of Biostatistics and Informatics University of Medicine and Pharmacy Craiova 200349 Romania IT Department University of Medicine and Pharmacy Craiova 200349 Romania Faculty of Mathematics of Computer Science University of Craiova Craiova 200585 Romania

AIM: To analyze whether computer-enhanced dynamic analysis of elastography movies is able to better characterize and differentiate between different degrees of liver fibrosis. METHODS: The study design was prospective. A total of 132 consecutive patients with chronic liver diseases and healthy volunteers were examined by transabdominal ultrasound elastography. All examinations were done by two ***: Due to the limitations of the method, we obtained high-quality elastography information in only 73.48% of the patients. The κ-means clustering method was applied to assess the inter-observer diagnosis varia- bility, which showed good variability values in accordance with the experience of ultrasound examination of every observer. Cohen’sκ test indicated a moderate agreement between the study observers (κ = 0.4728). Furthermore, we compared the way the two observers clustered the patients, using the test for comparing two proportions (t value, two-sided test). There was no statistically significant difference between the two physicians, regardless of the patients’ real status. CONCLUSION: Transabdominal real-time elastography is certainly a very useful method in depicting liver hard- ness, although it is incompletely tested in large multicenter studies.

关键词： Elastography Ultrasonography Liver steato- sis Viral hepatitis Liver cirrhosis

Orthotopic Heart Auto-Transplantation in a Swine Model

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World Journal of Cardiovascular Surgery 2022年第9期12卷 200-206页

作者： Michael P. Rogers Gregory Fishberger Nick Martini Margaret Baldwin Lei Wang Wei Chen Ruisheng Liu lucian Lozonschi Division of Cardiothoracic Surgery Department of Surgery University of South Florida Morsani College of Medicine Tampa FL USA Department of Comparative Medicine University of South Florida Tampa FL USA Department of Molecular Pharmacology and Physiology University of South Florida Morsani College of Medicine Tampa FL USA Department of Physics College of Arts and Sciences University of South Florida Tampa FL USA

Background and Aim: The porcine heart bears the best resemblance to the human heart and remains the preferred preclinical model for anatomical, physiological, and medical device studies. In an effort to study phenomena related strictly to ischemia reperfusion and donor preservation protocols, it is essential to avoid the immune responses related to allotransplantation. Orthotopic auto-transplantation is a unique strategy to the field of cardiac transplantation for ex vivo experimentation. Nevertheless, auto-transplantation carries its own technical challenges related to insufficient length of the great vessels that are to be transected and re-anastomosed. Methods: A novel method for orthotopic cardiac auto-transplantation in the porcine model was developed and was described herein. Porcine models were used for ex vivo experimentation of a novel device to study ischemia reperfusion injury. Results: A total of five porcine models were used for ex vivo experimentation of a novel device to mitigate ischemia reperfusion injury and determine effects of donor preservation. Modifications to routine cardiac transplantation protocols to allow for successful auto-transplantation are described. Conclusion: Orthotopic cardiac auto-transplantation in the porcine model is a plausible and technically feasible method for reliable study of ischemia reperfusion injury and donor preservation protocols. Here, we describe methods for both direct orthotopic porcine cardiac auto-transplantations as well as a simplified protocol that can be substituted for full surgical auto-transplantation for the studies of preservation of donor hearts.

关键词： Porcine Cardiac Surgery Cardiac Transplantation

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研究二氧化锰电化学活性的新方法

电池 1974年第3期 1-5页

作者： lucian Balewski Jean Paul Brenet

对电池电极反应机理的了解,是评定电池效率的必要前提。干电池发明以来已近百年,但反应机理仍不够清楚。主要是由于研究电池反应所有参数非常困难,特别是阴极。阴极物质的主要组成物质为二氧化锰。一个电池能给出的能量取决于二氧化锰... 详细信息

对电池电极反应机理的了解,是评定电池效率的必要前提。干电池发明以来已近百年,但反应机理仍不够清楚。主要是由于研究电池反应所有参数非常困难,特别是阴极。阴极物质的主要组成物质为二氧化锰。一个电池能给出的能量取决于二氧化锰的来源和制造方法。

关键词：二氧化锰极限容量粉末比容量电流密度放电曲线

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身份认证的下一个指向 011

计算机世界

作者： lucian Constantin 杨勇

生物认证技术通过每个人特有的生理特征，如指纹、掌纹、人脸、虹膜等，或行为特征，如笔迹、语音等进行身份认证。由于这些特征在很大程度上具有唯一性和不可模仿性，极大地减少了用户被冒名顶替的风险。随着生物认证技术的发展成熟，...

生物认证技术通过每个人特有的生理特征，如指纹、掌纹、人脸、虹膜等，或行为特征，如笔迹、语音等进行身份认证。由于这些特征在很大程度上具有唯一性和不可模仿性，极大地减少了用户被冒名顶替的风险。随着生物认证技术的发展成熟，在很多领域已经得到了成功的应用。

关键词：

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漆酶处理对杨木APMP木素分子质量的影响

中国造纸学报 2011年第3期26卷 5-8页

作者：崔红艳刘玉杨桂花王娟 lucian A.Lucia 山东轻工业学院制浆造纸工程省级重点学科山东济南250353 山东大学微生物技术国家重点实验室山东济南250100 美国北卡罗来纳州立大学木材与造纸科学系美国罗利nc276958005

研究了漆酶和漆酶/介体体系处理对三倍体毛白杨APMP性能的影响。采取酶解-弱酸解两段法分别从APMP原浆和生物处理后的纸浆中分离木素。为了使木素在凝胶渗透色谱流动相四氢呋喃中能完全溶解,对所有试样进行了卞基化处理。利用凝胶渗透... 详细信息

研究了漆酶和漆酶/介体体系处理对三倍体毛白杨APMP性能的影响。采取酶解-弱酸解两段法分别从APMP原浆和生物处理后的纸浆中分离木素。为了使木素在凝胶渗透色谱流动相四氢呋喃中能完全溶解,对所有试样进行了卞基化处理。利用凝胶渗透色谱分析仪获得了木素的分子质量分布曲线,并计算出数均分子质量和质均分子质量,进而比较了漆酶和漆酶/介体体系处理的效果和差异。

关键词：木素分子质量分布漆酶漆酶/介体体系 APMP

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神殿的基石