Materials Literature
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Исследована структура и реологические свойства растворов целлюлозы в высокополярном растворителе донорного типа N-метилморфолин-N-оксиде, содержащих частицы слоистых алюмосиликатов различной природы: природного гидрофильного (Cloisite Na+) и гидрофобизованного монтмориллонита (Cloisite 20А). Реологическое поведение ис…
One-step self-assembly process was proposed to synthesize anatase TiO2 hollow nanospheres from octadecyltrimethoxysilane and tetrabutyl titanate at 120 C. The as-prepared product was characterized by X-ray diffraction, field-emission scanning electron microscopy and transmission electron microscopy, respectively. The…
We present theoretical demonstration of quantum coherence-enhanced propagation of surface plasmon polaritons(SPPs). We show that propagation dynamics of SPPs can benefit from the quantum boost in the visible regime, adding a new dimension to nanophotonics.
パルプ価格が高騰するなか，製紙会社各社は紙中の填料レベルを上げることによりコスト削減を図るように日々検討している。紙中灰分率が上昇すると，隠ぺい性等の光学的性質に対してメリットが出ることが多いが，逆に紙力等の機械的性質は低下したり，また歩留まり維持が難しくなることがある。高填料紙のシートの強度低下の原因として，紙の単位体積あたりの繊維数の減少，および繊維間結合の形成に対する填料粒子による干渉と阻害，加えて紙面に欠点を生じるというリスクの存在が挙げられる。繊維原料コストの上昇以外にも，原料の品質低下は紙力向上剤の必要性を急速に増加させた。再生利用される紙・板紙の数量は増加しており，それゆえ急速にバージンパルプの使用が減少した。また紙…
The combination of small-angle X-ray solution scattering (SAXS) experiments and molecular dynamics (MD) simulations is now becoming a powerful tool to study protein dynamics in solution at an atomic resolution. We have developed a method called MD-SAXS, in which this combination is used with explicit evaluation of X-r…
通过模拟试验，考察了粉末活性炭（PAC）投加点（混凝前投加、与混凝剂一起投加、沉淀后投加）对混凝／沉淀／膜滤组合工艺去除东江原水中CODMn和UV254的影响；同时采用吸附试验考察了吸附时间对PAC去除沉后水中溶解性有机物的影响。试验结果表明，在相同的PAC投加量下，在沉淀之后投加最有利于发挥PAC的吸附效能，提高组合工艺对水中有机物的去除率；同时，15min和30min的吸附时间对PAC去除沉后水中溶解性有机物的影响不大。由此认为，在混凝／沉淀之后采用膜滤，并将投炭点移至膜滤单元，可更加有效地发挥组合工艺各环节的优势，提高水处理效果。
Two composite resin bonders were prepared via in-situ polymerization and blending method using Bis-GMA as resin matrix and nano-SiO 2 as inorganic filler. Composite resin bonder A was composed of crosslinked copolymer of Bis-GMA/TEDMA and nano-SiO 2 , and composite resin bonder B contained crosslinked copolymer of Bis…
Monolithic surface nanostructures can be formed in glass from metal dewetted nanoparticles. This results in antireflection, low scattering, superhydrophobic and mechanically resistant surfaces. The technique is industrially scalable and usable on optical fibre surfaces.
Microfluidic devices have been widely used for cell studies. In this project, a hydrogel-based microfluidic device was designed to study the transformation of stem cells into cardiac cells. A Polydimethylsiloxane (PDMS) membrane was sandwiched between two patterned PDMS layers to form the device. The stem cells were t…
On cathode glass faceplate the new integral type cold cathode was developed.The printed silver slurry was sintered to form the silver bottom electrode.The thin-layer bottom electrode paste including a great deal of carbon nanotube was prepared,and was screen-printed on the silver bottom electrode surface.The ordinary…
Cинтезирован полугидрат перрената трифенилгуанидиния [(C6H5NH)3C]ReO4 · 0.5H2O (I), изучена его кристаллическая структура и некоторые свойства. Бесцветные вытянутые пластинчатые кристаллы I триклинные (пр. гр. P Z = 4, при 293 K: a = 9.8716(17), b = 14.093(2), c = 15.439(3) A, = 99.632(9)°, = 101.802(9)°, = 95.361(10)…
Recent advance in the laser ablation techniques enables us to synthesize various nanostructured materials. In particular, composite nanoparticles are considered as building blocks for various nanostructured materials. In this review article, recent studies on synthesis of composite nanoparticles using laser ablation a…
An electrochemical measurement cell that enables the measurement of the rest potential, potentiostatic polarization, and anodic polarization curve of an electrode under wet etching was developed under wet etching by spray. The Cu electrode was fabricated by screen printing to simulate a printed circuit board. Its cros…
Московский государственный технический университет им
Изучены физико-химические свойства плотность, динамическая вязкость и показатель преломления системы ДМСОСu(NO3)2 · 3H2O в интервале концентраций 0.012 М при температуре 298 К. Показатель преломления растворов нитрата меди(II) в диметилсульфоксиде (ДМСО) измерен в интервале температур 288318 К. Аналитическим мето…
本文从六铝酸盐复合氧化物的晶体结构及作为催化剂的应用方面入手，综述了相应的研究成果，并对六铝酸盐复合氧化物未来的应用进行了展望。 This paper reviews the structure of hexaaluminate and its application as the catalysis. On the other hand, we also briefly summarize the relative research of hexaaluminate compound and forecast the prospect of the future ap- plication of it.
In this paper we consider a geometric motion associated with the minimization of a functional which is the sum of a kinetic part of $p$-Laplacian type, a double well potential $\psi$ and a curvature term. In the case $p=2$, such a functional arises in connection with the image segmentation problem in computer vision t…
プラントエンジニアリングにおける腐食シミュレーションの活用状況について，適用の背景や解析手法，有効性について概観した．その結果，腐食シミュレーションは材料の耐食性の評価，運転条件の変更に伴う腐食性への影響評価，腐食性の高い部位の特定などを目的として用いられていることが示された．さらにガス生産設備におけるCO2腐食に腐食シミュレーションを適用した事例について検証した結果，適用するシミュレーターの種類によって得られる結果が異なるケースがあり，これは入力データの種類や計算アルゴリズムの違いによると考えられることが確認された．これらの考察を通して，腐食シミュレーションは腐食解析における強力なツールである一方で，使用者に腐食現象に関する十分…
γ-Glutamyltranspeptidase（GGT） is a heterodimic enzyme that undergoes post-translational processing and catalyzes the hydrolysis of γ-glutamyl bond in such compounds as glutathione and/or the transfer of the γ-glutamyl group to other amino acids and peptides. We have determined the several crystal structures of GGT ort…
通过室内试验模拟煤层气产出水中高浓度Cl-（1000 mg·L-1）和HCO-3（2000mg·L-1）对活性氧化铝吸附F-的热力学影响,并借助扫描电镜（SEM）分析活性氧化铝吸附F-前后表面性质变化,探讨高浓度Cl-和HCO-3对活性氧化铝吸附F-的影响。结果表明,活性氧化铝对F-的吸附反应属于吸热反应（ΔH＞0）,可自发进行（ΔG〈0）,熵驱动（ΔS＞0）是吸附的主要推动力;当水中高浓度Cl-和HCO-3共存时,并不影响活性氧化铝对F-吸附反应的方向,但使吸附反应进行不彻底,吸附量降低。