Materials Literature
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As the hysteresis embedded in the piezoceramic actuator is a nonsmooth nonlinear and rate-dependent function with multivalued mapping,also the input and output of the hysteresis cannot be measured directly,it is very difficult to use the traditional schemes to identify and control such a system.In this paper,a piezoce…
A new ferrocene modified graphene oxide nano-material(GO-EDA-Fc) was synthesized via a new synthesis route.The GO-EDA-Fc was characterized by Fourier transform infrared spectra,and its morphology was observed under scanning electron microscopy.The graphene oxide was covalently decorated by ferrocene.The catalytic perf…
The magadiite as a single phase was prepared by a hydrothermal synthesis method in SiO2-NaOH-Na2CO3-H2O system. The influences of major reaction parameters(i.e., reaction time, temperature and content of SiO2 and H2O) on the formation of magadiite were investigated, and the structure of magadiite was also characterize…
Voltage-gated potassium (K v) channels are membrane proteins that open a selective pore upon membrane depolarization, allowing K(+) ions to flow down their electrochemical gradient. In neurons, K v channels play a key role in repolarizing the membrane potential during the falling phase of the action potential, often r…
According to the damage deformation and energy characteristics of rock element under different confining pressures,a series of tests on rock subjected to cyclic loading and unloading are carried out.Based on the current rationale of damage,the damage variable is revised.On this basis,the relationship among the dissipa…
A low-carbon steel bar with an ultrafine elongated grain (UFEG) structure and an ultrafine exiaxed grain (UFG) structure was fabricated by multipass caliber rolling at 500°C and subsequent annealing at 500, 550, 600 and 650°C. The Charpy impact and static tensile tests were conductued at ambient temperature. The micro…
The effect of plant growth promoting rhizobacteria (PGPR) on seedling germination, plant growth and biomass yield of tomato plant in presence of dye wastewater irrigation was evaluated in 2 experiments (lab scale and green house). Previously isolated strain Pseudomonas fluorescens (Q14) with ACC deaminase activity was…
炭素繊維を異種材料と接合化して，複合体を創製する技術が盛んに研究されている．しかし，炭素繊維の表面は疎水性であるため，親水性樹脂への分散性やセラミックスとの接合性が乏しい．高強度な複合体を創製するためには，接合界面を精密に設計し，接合性を向上させる必要がある．そのため，炭素繊維表面を改質・被覆する技術は，異種材料への分散化や複合化を改善・促進するため，重要なプロセス技術となりつつある．さらに，複合体の機能を向上させるためには，炭素繊維の表面技術だけでなく，界面接合技術が重要である．そこで，本報では，炭素繊維の表面改質および湿式法による無機高分子の被覆技術の特徴について紹介し，表面機能化について言及し，新しい複合材料としての応用の可…
Reuse of residue hydrodesulfurization catalyst is very important, as a large volume of this catalyst is exchanged every year due to the high deactivation rate. However, stable regeneration of this catalyst is more difficult than for distillate HDS catalysts due to the more severe regeneration conditions and the presen…
ACTA CHIMICA SINICA pH * ( 310018) , pH . pH (Cit-Fe@ACFs), pH 210 Cit-Fe@ACFs , pH ; Cit-Fe@ACFs
Carbazole and its derivatives are one kind of important nitrogen-containing heterocyclic compounds with a large conjugated system and a rigid structure, and it is easy to introduce different groups into the carbazole backbone. Carbazole compounds have a good fluorescent property, and its NH unit itself can work as one…
Iron (Fe) oxides were found to inhibit natural acidification of highly weathered soils from tropical and subtropical regions. The mechanism for the inhibition of the acidification has not been well documented. Electrodialysis was used to simulate natural acidification process in soils under intensive leaching and to i…
Objectives: To tests the sensitivity of Y79 retinoblastoma cell lines to high doses of ascorbate, in vitro, and compare \nits effects with those of some chemotherapeutic agents routinely employed in the treatment of retinoblastoma. \nMethods: Y79 retinoblastoma cells have been exposed to increasing doses of either sod…
Ab stract—Disinfection process by chlorine has been applying effectively in drinking water treatment processes; nevertheless it causes the formation of THMs which are thought to be carcinogen. Restrictions of THMs had been imposed by organizations in most of the countries. In Istanbul, these limit values were not exce…
This paper presents the design and implementation of an active filtering system based on a DSP acquisition board. This approach has the advantage of versatility regarding the command and control section of the filtering system, for a given power topology. The power section contains the typically components of an activ…
The structure and dynamics of water in a thick film on an ionic surface are studied by molecular dynamic simulations. We find that there is a dense monolayer of water molecules in the vicinity of the surface. Water molecules within this layer not only show an upright hydrogen-down orientation, but also an upright hydr…
Liquisolid compact were used to formulate water insoluble drugs in non-volatile solvent and convert into acceptably flowing and compressible powders. the main of this method is enhance the dissolution rate and bioavailability of BCS II drugs. About 40-50% of drugs available in market are water insoluble in nature. In…
Nano-sized cadmium oxide was synthesized by a simple method using Cd(NO3)2.4H2O as a reagent in the presence of polyethylene glycol (PEG 2000). X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy dispersive spectrometry (EDS) were used to characterize the str…
The development of new delivery systems for the controlled release of drugs is one of the most innovative fields of research in pharmaceutical sciences. Nanoparticle specially designed to release the drug in the vicinity of target sites. The main objective of this work was to prepare and characterize surface modified…
In the present study, an attempt was made to investigate phytochemical evaluation of Nyctanthes arbortristis, Nerium oleander and Catharathus roseus. The crude drug powder extracts of the leaves of the above plants were taken for the study. The Phytochemical Screening was done for the selected plants. Phenolic compoun…