نتایج جستجو برای: degradation coefficient
تعداد نتایج: 318478 فیلتر نتایج به سال:
Initial dissertation research in the area of real-time system identification of ship hydrodynamic coefficients is presented. In accordance with the naval initiative of Seabasing requiring automation of small vessels, a real-time coefficient system identification method is being researched. Ship coefficient system identification has been relatively neglected with efforts limited only to Kalman f...
The objective of the present research work is to develop a gradient, reversed-phase liquid chromatographic (RP-UPLC) method for the determination of Finasteride in pharmaceutical bulk drugs for assay and its related impurities. The chromatographic separation was achieved on a Waters ACQUITY UPLC BEH Phenyl Column (150 mm × 2.1 mm, 1.7 μm), The gradient LC method employs solutions A and B as mob...
The constitutive parameters of most semiconductors, such as silicon and GaAs, are functions of temperature. Hence, the performance of passive and active device fabricated on silicon or GaAs substrate strongly depends on the operating temperature. Although passive devices are not so sensitive to the variation in temperature as active devices do, it is still necessary to examine the thermal effec...
Since the start of this century, much attention has been given to economic growth and environmental changes their effects on human beings. The present study developed a comprehensive model discuss nexus between growth, degradation, public health. Furthermore, renewable energy consumption health spending are used as moderators make more inclusive. time series data from 1972 2020 used, regression...
This article describes the effect of temperature on the threshold voltage, low field mobility and S/D series parasitic resistance of PMOS over operating temperature range of 27 C to 125 C. The relation of IDS and VGS in a linear region was used with a different of channel length at a fixed value of channel width that effect of the channel width is excluded. The extraction procedure is based on ...
This paper proposes a new robust adaptive beamformer applicable to microphone arrays. The proposed beamformer is a generalized sidelobe canceller (GSC) with a variable blocking matrix using coefficient-constrained adaptive filters (CCAFs). The CCAFs, whose common input signal is the output of a fixed beamformer, minimize leakage of the target signal into the interference path of the GSC. Each c...
This article presents the possibility of using of multiple regression analysis (MRA) and dynamic neural network (DNN) for prediction of stability of Hydrocortisone 100 mg (in a form of hydrocortisone sodium succinate) freeze-dried powder for injection packed into a dual chamber container. Degradation products of hydrocortisone sodium succinate – free hydrocortisone and related substances (impur...
Dynamic tribochemical processes for dicationic ionic liquid containing a geminal imidazolium cation head group bridged by a poly(ethylene glycol) and a bis(trifluoromethylsulfonyl)imide anion were studied using time-resolved mechanically stimulated gas emission mass-spectrometry (MSGE-MS). In comparison with similar monocationic imidazolium ionic liquids with short alkyl or long polyether side ...
The main objective of the research work was to develop a simple, accurate, stability indicating RP-HPLC method for the quantification of celecoxib and its related substances which can be able to quantify the degradation products and also to get good baseline separation between celecoxib and its process related impurities and degradation products. The method was developed by Agilent HPLC with th...
The correct distribution and activity of secreted signaling proteins called morphogens is required for many developmental processes. Nodal morphogens play critical roles in embryonic axis formation in many organisms. Models proposed to generate the Nodal gradient include diffusivity, ligand processing, and a temporal activation window. But how the Nodal morphogen gradient forms in vivo remains ...
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