an exact method for the stability

... classes, showing an improved repeatability and reducing siloxane impurities Conclusion:  In this work we compared the performance of sample preparation methods for the SPME-GC-MS analysis of urine ... urine and frozen urine when identifying and quantifying metabolites in 4 ml samples Freeze-drying and addition of acid produced a significantly higher number of VOCs identified than any other method, ... used as an alternative method for the SPME-GC-MS analysis of urine samples Additional studies using internal standard, synthetic urine and calibration curves will allow a more precise quantification

Ngày tải lên: 29/05/2020, 13:33

... of the cathode uniformly Therefore the photoconductivity of the sample can be increased up to a certain level The illumination intensity Ln can be varied between 10−6 Wcm−2 and 10−2 Wcm−2 by the ... stable The optimization does not only depend on the current flowing through the PV or the applied voltage to the discharge cell In addition, the distance between the PV material and anode of the ... value In the gas discharge systems, the breakdown voltage changes, when p is changed [16-21] Therefore the breakdown voltages change around 335V for the investigated system It is obvious form Fig

Ngày tải lên: 23/10/2022, 09:18

... interactive method, the intermediate search results are presented to the DM to investigate; then the DM can understand the problem better and provide more preference information for guiding the search. ... the preferred solutions, the preference information is needed to guide the search towards the region of the PF of interest to the DM. Based on the role of the DM in the solution process, In an ... Identify the estimated ideal point of the non-dominated solutions in M and determine a system of n rays R (starting from the ideal point and emitting uniformly into the hyperquadrant that contains the

Ngày tải lên: 13/08/2015, 10:00

... smaller than n The parameters of EM are: = 0.1, Niter=20 and Npop=5 The EM ran 20 times for each instance, and the results are summarized in Table and Table The tables are organized as follows: the ... except the current best solution The vector of the total force exerted on each point from the other points, determines the direction of movement for the corresponding EM point Therefore, Fj the ... proportional to the distance between the points and directly proportional to the product of their charges The point that has a better objective value attracts the other points, and the point with the worse

Ngày tải lên: 13/02/2020, 02:21

... mass balance RPHPLC method for the related substances determination and assay of cabazitaxel in Cabaxitaxel injction Hence, a stability indicating RP- HPLC method was developed for the quantitative ... Cabazitaxel An HPLC method for determination of related substance for Cabazitaxel in Cabazitaxel Injection has been developed and being validated for its suitability for routine use and testing the stability ... linearity, range, ruggedness & robustness This developed method can be applicable for routine and stability quantitative analysis KEYWORDS: Cabaxitaxel, Impurities, RP- HPLC, Stability indicating, Method

Ngày tải lên: 04/03/2021, 15:20

... found by Jin and Zheng [10, 11] For the method of fundamental solutions, we can refer to Marin and Lesnic [12] and Wei et al [13] Study on the moment method and boundary particle method can be found ... about the wavenumber Acknowledgments The authors would like to thank the editors and the referee for their careful reading and valuable comments which lead to the improvement of the quality of the ... use the Tikhonov regularization method and the Morozov discrepancy principle to solve the integral system (19) and then give the error estimates and 𝛿 convergence results In general, we give the

Ngày tải lên: 01/11/2022, 08:31

... F Yang and L Yang conceived and designed the study Z Liu and J Jia performed the experiments and wrote the paper F Chen, Y Zu, and L Yang reviewed and edited the manuscript All authors read and ... (Heilongjiang, China) and authenticated by Prof Wenjie Wang from the Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, China Their average heights and ... Liu, Y.; Yang, L.; Zu, Y.; Zhao, C.; Zhang, L.; Zhang, Y.; Zhang, Z.; Wang, W Development of an ionic liquid-based microwave-assisted method for simultaneous extraction and distillation for determination

Ngày tải lên: 01/11/2022, 09:50

... all the wave numbers q supported by the lattice Therefore, following the von Neumann ideas, we reduce the problem of analyzing the stability of the solution to the problem of analyzing the stability ... is, for any given set of values of γ1 , γ2 , μ, and K there are choices of Δx and Δt for which the method is unstable Therefore, it is important to determine the conditions under which the method ... truncating the infinite series after the first 50 terms In Figures and we show the analytical and numerical solution for two values of γ1 and γ2 at x and x 0.5 The differences between the exact and the

Ngày tải lên: 02/11/2022, 08:52

... plate and the stem of the striking ship, and then consider the situation where the inclined panel is impacted by the bulb For these two scenarios, an analytical formu­ lation relating the force and ... scenarios The new simplified analysis method includes the deformation mechanism analysis of the side shell plating, the transverse frame and the web girder, and the resistance formulas are proposed, then ... is the instantaneous length of the left part of the deformed plate without bending, a1 is the instantaneous rotation angle of the left part of the deformed plate Therefore, the strain rate of the

Ngày tải lên: 28/01/2024, 15:06

... that Brazilian grapevine HSVd variants clustered with other grapevine HSVd variants, forming a specific group separated from citrus variants On the other hand, the Brazilian CEVd variants clustered ... used for the amplification They can choose between using pre-set polymerase buffers or to specify the ionic content of the buffer and the algorithms they want using the custom-buffer mode The ... plants It is important to note that the tested tissues include cane and bud samples from the dormant grapevine because this means that the HSVd and GYSVd-1 primers detection can also serve as an

Ngày tải lên: 09/09/2024, 04:21

... Forecasting the fair weather………………………………… .…….22 3. Vietnamese idioms related to the weather………………………….26 3.1 Forecasting the bad weather………………………………………26 3.2 Forecasting the fair weather…………………………………… ... to the weathe………16 1. The role of idioms in daily life ………………………………………….16 2. English idioms related to the weather……………………… …… .16 2.1 Forecasting the bad weather……………………………………………16 2.2 Forecasting ... teachers in Foreign Language Department of Hai Phong Private University, providing materials for this study and having taught me through four years at university. Finally, I want to thank my parents

Ngày tải lên: 11/12/2013, 23:51

... in the theory of quadratic forms - the Milnor conjecture on the structure of the Witt ring, the Khan-Rost-Sujatha conjecture and the J-filtration conjecture. All these results require only the ... present form the paper was written while the authors were members of the Institute for Advanced Study in Princeton. We would like to thank both institutions for their support. 2. An exact sequence for ... H i,i (X a , Z/2) AN EXACT SEQUENCE FOR K M ∗ /2 5 defined by the first arrow in (10) is an isomorphism. This implies immediately that the exact sequence (9) defines an exact sequence of the form (11) H i+2 n −2,i+2 n−1 −1 (Q a ,

Ngày tải lên: 29/03/2014, 07:20

... isopropanol and heptane solvents with weight ratio of 1:40(2-CEPS: CaO) after 12 h, respectively. On the other hand, these values for the weight ratios of 1:10, 1:20 and 1:30 were lower. The hydrolysis ... and were shaken for about 12 h. Then, by micropipet extracted 10 μL of solutions and injected to GC and GC-MS instruments. Result and discussion SEM analysis The SEM images of the CaO nanoparticles ... synthesized size nanoparticles are less than 100 nm. That means the synthesized catalysts have nano dimension. Also, the analysis results were emphasized that the smaller of the particle size

Ngày tải lên: 06/05/2014, 08:55

... higher than or equal to the band gap, an electron (e cb ) in the valence band (VB) can be excited to the conduction band (CB) with the simultaneous generation of a hole (h vb+ ) in the VB. ... oxygen vacancies can entrap electrons from the semiconductor, the holes can diffuse to the surface of the semiconductor and cause oxidation of the organic dye Therefore, a high ... hydrothermal method and an investigation of the dependence of the morphology evolution of the self-assembled flower-like ZnO composed of nanosheets on the hydrothermal treatment time (017 h) and

Ngày tải lên: 06/05/2014, 13:26

... element method for conservation... the study, drafted the manuscript MF conceived the study, and participated in its design and coordination YX participated in the design and the revision ... further assume that p, ∇p, c and ∇c are essentially bounded If the constant M for the cut-off operator is sufficiently large, then there exists a constant C... Numerical methods for ... . (5:3) 6 Stability and consistency From [6], we can state the following results. Lemma 6.1 [6]There exist two positive constants C 1 and C 2 , depending only on the minimum angle of the decomposition

Ngày tải lên: 20/06/2014, 22:20

... approximated analytical expression for the pdf and the c umulative distribu- tion function ( cdf) of the intercell interference power; • We propose a semi-analytical method for the esti- mation of the ... method performs very well for the whole range of sdB... guarantees the independence of permutations dThe term ‘panel’ refers to survey panels used by polling organizations eThe probability ... environment to the ? ?exact? ?? analytical formula obtained in the case where only Rayleigh fading was considered Another perspective is to apply the proposed methods to other wireless

Ngày tải lên: 21/06/2014, 00:20

... Section the technological and conceptual performance and future perspectives of the application Instruction method In concept, the Dance -the- Music brings the traditional demonstration-performance ... explained in Section 2, the Dance -the- Music elaborates on this method in the domain of human-computer interaction (HCI) design In the demonstrationperformance method, a model performance is shown by ... dance novices on how to perform the specific dance gestures (cf., dynamic dance notation), and (2) to recognize the quality of students’ performances in relation to the teachers’ models The Dance -the- Music

Ngày tải lên: 21/06/2014, 19:20

... method for solving the equilibrium problem and proved the strong convergence theorem for approximating the solutions of the equilibrium problem. On the other hand, for finding an element of FS ... with an iterative scheme by the approximation method for finding a common element of the set of common fixed points of infinitely many nonexpansive mappings, the set of solutions of GEP1.1, and the ... Journal of Mathematical Analysis and. .. 301–316, 2003 11 N.-J Huang, H.-Y Lan, and K L Teo, “On the existence and convergence of approximate solutions for equilibrium problems in Banach

Ngày tải lên: 21/06/2014, 20:20

... and fixed point problems and Mainge and Moudafi 22 introduced an iterative algorithm for equilibrium problems and fixed point problems. On the other hand, for solving the equilibrium problem EP, ... by using the viscosity approximation method S. Takahashi and W. Takahashi 8 introduced another iterative algorithm for finding a common element of the set of solutions of EP and the set of ... 2.5 for all x, y ∈ C. 4 Fixed Point Theory and Applications It is worth noting that the class of demicontractive mappings includes the class of the nonexpansive mappings, the quasi-nonexpansive

Ngày tải lên: 21/06/2014, 20:20

... lower tank. The advantages of this new system are: its easy manufacture; simple maintenance, limited to the periodic cleaning of the textile material; and its low consumption. On the other hand, ... making more interesting the idea of considering and analyzing the use of these devices. Another disadvantage is the water consumption associated to the operation of these systems, which is ... enters through the filters on the right side, and is driven by the fan through the horizontal paths of the plate heat-exchanger, where it is cooled. The return air, sucked by the upper fan, passes...

Ngày tải lên: 05/09/2013, 16:10