Materials Literature
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ABSTRACTBACKGROUND AND OBJECTIVE:A large number of new development drugs are soluble poorly in both organic and aqueous media which shows a low bioavailability using formulation traditional methods. A promising approach to solve this problem is the formation of nanosuspensions. Various articles about the increasing so…
A series of critical experiments were completed in 1962-1965 at Oak Ridge National Laboratory’s (ORNL’s) Critical Experiments Facility (CEF) in support of the Medium-Power Reactor Experiments (MPRE) program. In the late 1950s, efforts were made to study “power plants for the production of electrical power in space veh…
Tritium is a radiologically active isotope of hydrogen. It is formed in nuclear reactors by neutron absorption and ternary fission events and can subsequently escape into the environment. To prevent the tritium contamination of proposed reactor buildings and surrounding sites, this study examines the root causes and p…
The objectives of the confirmatory activities were to provide independent contractor field data reviews and to generate independent radiological data for use by the NRC in evaluating the adequacy and accuracy of the contractor's procedures and FSS results. ORAU reviewed ABB CE's decommissioning plan, final status surv…
Bu çalışmada, Mg-esaslı amorf/nanoyapılı ince filmler ısıl buhar çöktürme yoluyla üretilmiştir. Tüm filmler, toz metalurjisi yöntemleri ile hazırlanmış çok elementli kaynakların buharlaştırılması ile elde edilmiştir. Hazırlanan kaynaklar Mg-Cu, Mg-Cu-Ni, Mg-Cu-Al, Mg-Cu-Al-Ni şeklindedir. Üretilen kaynakların, sinterl…
University of Minnesota Ph.D. dissertation. March 2013. Major: Veterinary Medicine. Advisor: Connie Jane Gebhart. 1 computer file (PDF); xvii, 220 p., + 3 supplementary files (PDF)
Abstract : This research investigates the optimization of zinc coating by varying the voltage (2, 4, 6, and 8 V) and time (10, 20, 30, and 40 minute), to find out the best plating based of the thickness and adhesion. The chatode is mild steel by 30 mm in length, 100 mm in width, and 2.5 mm in height. Electrolyte solut…
Dominant research results on adsorption on gold clusters are reviewed, including adsorption of H{sub 2}O and O{sub 2} on gold cluster cations and anions, kinetics of CO adsorption to middle sized gold cluster cations, adsorption of CO on Au{sub n}{sup +} with induced changes in structure, and H{sub 2}O enhancement of…
Adhesives .......................................................................................................... 52 4.3.2 The Effect of Fillers on Mechanical Properties of Epoxy-based Adhesive ............................................................................................................ 53 4.3.3 The…
The Integrated Recycling Test is a collaborative irradiation test that will electrochemically recycle used light water reactor fuel into metallic fuel feedstock. The feedstock will be fabricated into a metallic fast reactor type fuel that will be irradiation tested in a drop in capsule test in the Advanced Test Reacto…
Because of the helicity of electrons in HgTe quantum wells (QWs) with inverted band structures, the electrons cannot be confined by electric barriers since electrons can tunnel the barriers perfectly without backscattering in the HgTe QWs. This behavior is similar to Dirac electrons in graphene. In this paper, we prop…
摘要： 氯甲基化交联聚苯乙烯(CMCPS)微球的氯甲基与苯甲醛衍生物2-羟基-3-甲氧基苯甲醛(HMBA)发生傅克烷基化反应,形成改性微球HMBA-CPS;微球HMBA-CPS与环己二胺发生席夫碱反应,形成键合Salen配基的微球Salen-CPS;最后，使之与锰盐发生配位螯合反应,制得了固载有手性Mn(Ⅲ)-Salen配合物的固体催化剂Mn(Ⅲ)Salen-CPS，分别采用红外光谱、紫外/可见吸收光谱及扫描电子显微镜对固体催化剂的结构与形貌进行了表征和观察。 研究了微球CMCPS与HMBA之间傅克烷基化反应的规律。 结果表明,以AlCl3为Lewis酸催化剂,使用二氯甲烷与硝基苯混合溶剂,可有效地实施CMCPS与HMBA的傅克烷…
순수한 점토 5 wt%를 포함하는 poly(vinyl alcohol)(PVA) 나노 복합체 필름을 수용액상에서 합성하였다. 합성된 PVA 복합체 필름에는 구조적으로 각각 다른 사포나이트(SPT), 몬모릴로나이트(MMT), 헥토라이트(SWN), 수용성 벤토나이트(PGV) 및 마이카(Mica) 등의 점토를 사용하였다. 이처럼 여러 가지 순수한 점토가 포함된 PVA 복합체 필름에 대해 열적-광학적 성질 및 모폴로지를 평가하였으며, 전자 현미경을 통해 관찰된 PVA 복합체 필름의 나노 구조에서는 점토가 매트릭스에 잘 분산된 부분도 있었지만, 일부에서는 뭉친 부분도 발견되었…
The aim of this study is to investigate the mechanical and thermal properties of single and hybrid fillers filled poly(vinyl chloride) (PVC) composites. Graft copolymerization of poly(methyl methacrylate) (PMMA) onto oil palm empty fruit bunch (OPEFB) was carried out under nitrogen environment using the free radical i…
Differential cross sections for excitation to the n=2 states of atomic helium by electrons were computed for incident energies in the range from 30 to 50 eV. The n=2 states excitation cross sections were calculated with the use of close-coupling expansion with a non-orthogonal Laguerre-L2 basis function. The present s…
In this paper, a theoretical weight-reduction method was suggested to substitute an underframe material of a box-type bodyshell having cut-outs with an alternative light-weight material. To utilize the material substitution method previously developed for a box-type hybrid bodyshell not having cut-outs, we derived a b…
Texture evolution in metals due to rotation of the atomic lattice results in a complex macroscopic mechanical behaviour which cannot in general be reasonably captured by only classical isotropic or kinematic hardening. Focusing on standard rate-independent plasticity, the evolution of microstructure leads to an evolvi…
The presence of acidic and toxic gases of carbon dioxide (CO2) and hydrogen sulphide (H2S) will lead to the corrosion in natural gas pipeline system and material in processing plant. Alternatively, CO2 and H2S can be removed using green technology via catalytic methanation reaction by converting CO2 to methane (CH4) g…
r-fold Wiener process는 실질적으로 infinite dimension이고, 컴퓨터는 finitely dimensional subspace만 취급할 수 있기 때문에 f-fold Wiener process는 컴퓨터로 구현될 수 없다. 따라서 본 논문에서는 r-fold Wiener process의 m-dimensional approximation 함수의 특성에 대해 연구한다.
Ένας συναρπαστικός τομέας της σύγχρονης επιστημονικής έρευνας είναι αυτός των νανοσύνθετων υλικών. Το πεδίο αυτό περιλαμβάνει τη μελέτη πολυφασικών υλικών, στα οποία μία ή περισσότερες από τις χωρικές διαστάσεις κάποιας φάσης βρίσκεται στην περιοχή νανομέτρων (10-9m). Αυτό που ξεχωρίζει τα νανοσύνθετα από τα άλλα συμβ…