Materials Literature
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Thermische Behandlung von Holz ist eine gängige Konservierungsmethode, welche allerdings Auswirkungen auf die strukturelle Integrität hat. Der Mikrofibrillenwinkel von Zellulose, welcher von großer Bedeutung für die mechanische Belastbarkeit von Holz ist, wird durch diese Art der Behandlung beeinflusst. Eine verbreite…
A new chelating ligand, 5,5-dimethyl-2-(2-(3-nitrophenyl) hydrazono)cyclohexane-1,3-dione (L), and four transition metal complexes were synthesized. The ligand and its complexes were characterized by IR, 1H and 13C-NMR spectra, elemental analyses, magnetic susceptibility, mass spectra, UV-Vis. and thermogravimetry-dif…
Sintesa Pzt Sangat Membutuhkan Suhu Sintering Rendah Untuk Mengurangi Penguapan Pbo. Untuk Meningkatkan Kualitas Pzt Dilakukan Dengan Penambahan Dopan Berupa La2o3 Yang Akan Mengubah Besarnya Nilai Konstanta Dielektrik. Bahan Dasar Dari Plzt ( Pb1-Xlaxzr0,5ti0,5o3 ) Adalah Pbo, Tio2, Zro2 Dan La2o3 Digerus Secara Manu…
Background Oil and gas pipelines typically include a large number of river and ravines crossings. Such sites are usually built using bended inserts with terrain relevant radii of curvature. In most cases, the soil is characterised by non-uniform mechanical properties. In some cases, insignificant bending is allowed in…
The method of isothermal forging produced the lot of blades of titanium alloy VT6 at a temperature of 650оC. This temperature on 250оС below usually applied at the production of blades from the alloy of ВТ6. Picked up by thermal treatment of the blades. Research on the microstructure and mechanical properties of the b…
AbinaryNi-30Cr alloy, known for its chromia-forming behaviour, previously elaborated by foundry and tested in oxidation at temperatures ranging from 1000 and 1300°C in dry air and in moderately water vapour-enriched air, has been here subjected to hot oxidation at the same temperatures (1000, 1100, 1200 and 1300°C) fo…
As one of the most commonly applied semiconductors, nanostructured silicon has received considerable attention over the past several decades due to its suitable band gap for light harvesting (1.2 eV for bulk crystal and up to 1.9 eV for nanocrystals), unique tunable photoluminescence (PL) and high biocompatibility and…
Apparel fit plays a significant role in not only consumers’ satisfaction with apparel (Eckman, Damhorst, & Kadolph, 1990), but also their apparel purchase decisions (Gardyn, 2003). Over two-thirds of older women are dissatisfied with fit of ready-to-wear garments since these garments are developed based on younger wom…
The work presented in this thesis demonstrates that triarylphosphoniopropyl-thiosulfate zwitterions and w-thioacetylpropyl(triphenyl)phosphonium salts can be used to prepare cationic, water-soluble gold nanoparticles with mean core sizes in the range of 2.5-5 nm. Phosphonium-functionalised gold nanoparticles have been…
Straining and fracture features upon static and cyclic loading of quenched grade 50 steel (with 0.51 wt.% of C) subjected to nanostructurizing deformation-thermal treatment, which includes frictional treatment and optimized tem-pering at temperature of 350°С have been investigated. It is established that combined nano…
Pengelasan Spot Welding merupakan salah satu metode pengelasan yang cepat dan efisien di era sekarang. Pengelasan Spot Welding memiliki beberapa parameter-parameter proses,seperti : welding current, weld time, squeeze time, electrode, cool time, pulsation, force dan hold time. Dengan merubah Parameter Spot Welding, kh…
La capacità di assorbimento di energia delle schiume di alluminio, generalmente caratterizzata da \nuniforme e basso stress, ne fa un candidato importante in tutte quelle applicazioni in cui si vuole \naumentare l’efficienza dell’assorbimento con pesi contenuti. Le schiume di alluminio vengono \nregolarmente utilizzat…
V doktorski disertaciji je obravnavan problem vpliva vecosnega napetostnega stanja na zacetek in potek superelasticnega podrocja pri spominski zlitini Ni-Ti. Za raziskovalno delo je bila uporabljena komercialno dostopna ortodontska žica Ni-Ti z vsebnostjo 50,6 at.%Ni. V prvem delu raziskav smo izvedli karakterizacijo…
The ultrasonic degradation of polyacrylic acid was carried out in water and aqueous hydrogen chloride solutions.Some of kineticsmodels are used to obtain of rate constants. The calculated rate constants reveals that rate of degradationwere decreased by increasing temperature and decreasingultrasound power. Also the ef…
Im Rahmen dieser Masterarbeit wurde die Abhängigkeit der Funktionalität des Phytosiderophoren DMA (2′-deoxymugineic acid) von geochemischen und physikochemischen Parametern in Bodenproben eines kalkreichen, spanischen Bodens untersucht. Die folgenden Metallionen wurden zur Untersuchung herangezogen: Fe(III), Cu, Mn, N…
In the last three decades carbon nanomaterials such as fullerenes, carbon nanotubes and graphene have attracted significant attention from the scientific community due to their unique electronic, optical, thermal, mechanical and chemical properties. Among them carbon nanotubes and graphene have been used in numerous a…
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In today’s vehicle applications, Selective Catalytic Reduction (SCR) ammonia dosing is completed using complex control algorithms that need to be parameterized for the individual catalytic converter technology. The parameterization of these control strategies is not always completed during the early design phase (i.e.…
Kanker adalah penyakit yang berhubungan dengan tidak terkontrolnya kecepatan pertumbuhan sel abnormal dalam tubuh. Kegagalan dalam pengobatan kanker, terutama dalam kemoterapi, yang sering terjadi adalah disebabkan karena rendahnya selektifitas obat-obat anti kanker terhadap sel normal sehingga menimbulkan efek sampin…
Background The main characteristics that contribute to the efficient operation of the trunk pipelines (TP), are safe and reliable operation. Reliability and safety depend on technical and technological solutions adopted for the design, construction and operation of TP. Aims and Objectives To evaluate the effectiveness…