Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Overtopping events may cause different failure modes depending on overtopped flow characteristics. Most of the studies about overtopping hazard analysis link the damages caused by the overtopping event to its mean overtopping discharge (q), which provides no information about overtopped flow characteristics or its spa…
A technique to locally generate mechanical vibrations in freestanding graphene using scanning tunneling microscopy (STM) is presented. The frequency of the mechanical vibrations is tuned over nearly four decades and is centered around 10 Hz. The amplitude of the vibrations also changes over nearly three decades center…
Beneath the seeming straight-forwardness of growing carbon nanotube (CNT) forests by the injection chemical vapor deposition (CVD) method, control of the forest morphology on various substrates is yet to be achieved. Using ferrocene dissolved in xylene as the precursor, we demonstrate that the concentration of ferroce…
уДК 623.459.004.74Способы приведения в безопасное состояние территорий и объектов инфраструктуры при выводе из эксплуатации объекта по хранению и уничтожению химического оружия «горный» (пос.горный Саратовской области) © 2012.А. С. лякин, начальник отдела, Научно-исследовательский центр Федерального управления по безо…
Microbial diversity on fruit surface of nine mango cultivars (Alphonso, Banganapalli, Chausa, Dashehri, Kesar, Langra, Mallika, Maldah and Neelam) harvested from orchards of nine Indian states (Andhra Pradesh, Bihar, Gujarat, Karnataka, Maharashtra, Orissa, Punjab, Tamil Nadu and Uttar Pradesh) were studied using stan…
Curcumin, the major yellow pigment of Curcuma sp. has several interesting biological activities, such as anticarcinogenecity, antiinflamatory, and antioxidant. Curcumin naturally occurs as major compound in Curcuminoid substance beside its derivatives, i.e. Bisdemethoxycurcumin (BDC) and Demethoxycurcumin (DC). Quanti…
This research attributed with chitosan as prebiotic and immunomodulator as well as to determine its effect on the body weights of experimental of chicks. The results had been showed increasing in body weights of chicks had been given chitosan. The bacterial isolated revealed that chicks groups exposed to infection wit…
Aim. To study the use of atomic-force microscopy for morphological diagnosis of a bone tissue and hard tooth tissue pathology. Methods. Dental occlusion, enamel crowns and bony tooth sockets shape and size, as well as embrasures’ size and their depth, and crown height were estimated by the means of atomic-force micros…
The Sr3(Ti0.95R0.05)2O7 (R = Ta, Nb, W) polycrystalline compounds were fabricated, and their transport and thermoelectric properties were investigated. The results indicate that at T > 300 K electrical resistivity ρ for all the doped compounds increases monotonically with temperature, and basically can be described by…
This paper describes Raman spectroscopy of microstructured silicon (Si), which is used for electronic displays, solar cells, and other applications. Enhanced Raman scattering was found for excimer laser crystallized polycrystalline Si (ELC poly-Si) thin films, texture-structured Si, black Si, and porous Si. Raman scat…
El desarrollo de higados bioartificiales, busca crear modelos biologicos que suplanten la funcion hepatica. En anos recientes se han obtenido mejoras a los modelos al utilizarlos en cocultivo con celulas parenquimales y celulas estructurales. El anclaje celular a la superficie es fundamental para generar un cultivo ce…
Background and Objectives: Among different water treatment methods, photocatalytic process is applied as a new efficient technology with appropriate potential to remove inorganic, organic and microbial contaminants from water. This study aimed to evaluate photocatalytic removal of Escherichia coli and Streptococcus fa…
Ferroelectric oxides possess a unique set of physical properties that have not been maximally exploited due to a lack of understanding of the origins of the switching behavior. Currently, controversy exists over whether switching in ferroelectric oxides is due to polarization or defect mediated switching. Here, we use…
Experimental ac-susceptibility curves at different frequencies (0.1 Hz ≤ f ≤ 1 kHz) were performed on samples prepared by physical and chemical pathways. By combining the triple fit method and a careful analysis of ac-experimental curves, we demonstrate an unambiguous and consistent determination method of both the ma…
When competing with the industrial productivity, respecting the general rules of work and ecology of the environment system by avoiding various types of lubricating liquid, solid or any other form of machining, research is directed towards the steels with improved machinability and coating cutting tools.
We demonstrate site-controlled growth of epitaxial Ag nanocrystals on patterned GaAs substrates by molecular beam epitaxy with high degree of long-range uniformity. The alignment is based on lithographically defined holes in which position controlled InAs quantum dots are grown. The Ag nanocrystals self-align preferen…
Neste estudo, investigou-se a síntese de nanomembranas por eletrofiação (electrospinning). A poliamida-66 (PA-66) foi usada para estudar a influência dos parâmetros operacionais (concentração do polímero, diferença de potencial elétrico aplicada, vazão da solução, distância entre ponta da agulha e o coletor) na morfol…
Built-in polarization potentials for vertically and laterally arranged InGaN/GaN quantum dot (QD) structures are investigated using the finite-element method based on the theory of continuum elasticity. The potential for vertically arranged QD structures is shown to depend significantly on the number of arranged QD. O…
A reseach about the study on the critical temperature of BSCCO-2212 superconducting crystal with slow cooling periode of 90 hours objected for knowing the critical temperature of superconducting crystal. An experiment has been carried out on the formation of BSCCO-2212 superconducting crystal by the melt-textured grow…
We present a theoretical analysis of intraband optical transitions from the intermediate pseudo-band of confined states to the conduction band in a finite, inhomogeneous stack of self-assembled semiconductor quantum dots (QDs). The chain is modeled with an effective Hamiltonian including nearest-neighbor tunnel coupli…