Materials Literature
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Il presente lavoro di tesi riguarda la sintesi di materiali innovativi partendo dalla molecola del dichetopirrolopirrolo (DPP), pigmento organico appartenente alla classe degli High Performance Pigments (HPP). In modo particolare sono stati sintetizzati due derivati del DPP in grado di sviluppare degli aggregati supra…
Sintesis nanokomposit ZnO-Silika dibuat dengan mengaplikasikan continuous and pulse mode ultrasonication untuk membuat sol ZnO dan pertukaran resin kation untuk menghasilkan sol silika dari water glass. Penelitian ini bertujuan untuk mengetahui kondisi operasi yang sesuai untuk membentuk campuran sol ZnO-silika pada b…
This thesis explores the “crystal engineering” of the solid-state behaviour of a series of alkali metal TCNQ salts. This can exhibit a variety of electronic and magnetic properties, depending on the solid-state architecture. TCNQ is a good one-electron acceptor and the resulting radical anion salt is quite stable. The…
In order to convert heat up to 600 °C into electrical power, a poly-SiGe semiconductor could be a suitable thermoelectric (TE) material in a µTEG. The interconnection between TE structures can be fabricated using a wafer bonding technique. This technique requires a bond solder, the components of which are deposited on…
OBJECTIVE: To study the effects of cells'and bacteria's adhesion and proliferation on different fiber diameters of polypyrrole coating with electricity. METHODS: Titanium coated with polypyrrole was divided into no electrical stimulation and stimulation groups, each group had 30-60 nm, 70- 100 nm, 130-170 nm diameters…
The bond length alternation (BLA) in long conjugated molecular chains have been the topic of discussion for many decades, both experimentally and theoretically. The BLA is a structural parameter that comes from the difference between the length of double and single bonds along the conjugated chain.
为了改善纳米纤维素晶须（CNC）在非亲水性树脂中应用时分散困难、热分解温度低、与基体相容性较差等缺点,将冷冻干燥的纳米纤维素在高聚物的有机溶液中预先包覆,然后与苯乙烯-丁二烯-丙烯腈树脂（ABS）、马来酸酐接枝聚乙烯在挤出机内熔融共混制成ABS/CNC复合材料。通过扫描电镜（SEM）、热重分析测试（TGA）、拉伸性能测试等手段对复合材料进行性能表征。SEM观察发现CNC是以层状纳米片的形式均匀地与ABS复合;力学性能测试表明,接枝聚乙烯的加入有利于改进CNC与ABS的界面相容性,与纯ABS相比,添加0.7%CNC的复合材料其拉伸强度提高了156%,弹性模量提高了52%。TGA测试结果表明,CNC的热分解温度由211℃提高到263℃…
Bu çalışmada elektrolit ortama dayanımı yüksek akrilik bazlı kıvamlaştırıcılar hazırlanmıştır. Suda şişebilen kıvamlaştırıcı polimerlerin \nhazırlanmasında ters emülsiyon polimerizasyonu tekniği kullanılmıştır. Kıvamlaştırıcıların reolojik özellikleri incelenmiş, baskı patına \nkazandırdıkları viskoziteler belirlenmiş…
Pretty darn quick interpolating arbitrary waveform generator
Structural Biology Lipoproteins have key functions in many bacteria. They are synthesized in a precursor form that requires processing by enzymes that are essential in many pathogenic bacteria but have no equivalent in humans, making them potential drug targets. LspA is a key membrane protein involved in lipoprotein m…
En el siguiente trabajo se presenta la utilización de técnicas espaciales de análisis de textura en imágenes para la identificación de defectos en textiles, en donde se presenta la aplicación de técnicas para pre-procesamiento, y para el análisis de textura los patrones locales binarios y la matriz de co-ocurrencia co…
Structural Biology The protein p97 is an AAA adenosine triphosphatase (ATPase) that uses energy from ATP hydrolysis to regulate substrates involved in intracellular protein quality control. Its role in this central process makes it a target for cancer chemotherapy. Banerjee et al. used cryo-electron microscopy to dete…
Enflurane is a fluorinated volatile anesthetic, whose biological \nconformation is still unknown. Previous studies have reported the enflurane \nconformations of for the gas phase and in non-polar solution. With the aim \nof studying the conformational stability of the enflurane, this study, \nperformed using computat…
Underwater characterizations of (Pb0.94Sr0.04)(Zr0.52Ti0.48)O3 (PZT) and PZT/araldite-F 1–3 composite were carried out through a self-designed transducer. Disc-shaped samples of bulk PZT and PZT/araldite-F composite were first characterized in air and then were assembled in the transducer individually. The transducer’…
Keratins (K) are cytoskeletal proteins mainly expressed in the epithelium and constitute the largest subgroup of intermediate filaments (IFs). Simple epithelial keratins (SEKs) K7-K8 and K18-K20 are the major IF elements in the colon. SEK mutations are known to cause around 30 human diseases, mainly affecting liver an…
A kinetic model for the precipitation of a dispersed compound from solutions is formulated, based on a description of the evolution in the function of its particle distribution according to its states during precipitation. A boundary problem about the precipitation of a compound during the evaporation of a solvent fro…
The solubility of thiourea in triethylene glycol was determined in the temperature range of 318.35–357.75 K. The experimental data were approximated by the modified Apelblat equation. The dissolution enthalpy and dissolution entropy were calculated from the experimental data. The mutual interactions between solvent an…
Hydrogels are promising biomaterials for tissue engineering. Concerning hydrogels chemical structures, the hydrogen bonding towards water makes them hydrophilic compounds. Hydrogels contain 95% ~ 99% water as the swelling agent and have the characteristics of extracellular matrix. Therefore, they are suitable for cell…
Fotokatalyysi on yksi tutkituimpia aiheita monilla eri tieteenaloilla ja sen pääasiallinen käyttötarkoitus on nesteiden ja kaasujen puhdistus orgaanisista ja epäorgaanisista yhdisteistä. Ydinvoimateollisuudessa fotokatalyysiä käytetään yleensä putkistojen pintojen puhdistusmentelmien kompleksinmuodostajien hajottamise…
This paper describes the welding procedure qualification of the multilayer “lamellar” flange for modern bridge construction made in the Czech Republic. The fine-grained structural steel was used for construction and welding qualification. Weldability of this steel grade is briefly mentioned. Technological and proposed…