1,819 research outputs found
Contemporary British Muslim Arts and Cultural Production (Ed. Sadek Hamid and Stephen H. Jones)
No full textThis unique collaboration between scholars, practitioners and Muslim artists profiles emerging forms of contemporary British Muslim art, prompting a debate about its purpose and its inclusion in UK society. It features analysis of Muslim art as a category, as well as reflective accounts of people working in theatre, popular music, the heritage sector and ancient and modern visual arts, often at the margins of the British arts industry.Dealing with sociological and theological themes as well as art history and practice, the volume provides a timely intervention on a neglected topic. The collection discusses diverse topics including how second- and third-generation British Muslims, as part of a broader generational shift, have reworked Sufi music and traditional calligraphy and fused them with new musical and artistic styles, from Grime to comic book art, alongside consideration of the experiences of Muslim artists who work in the theatre, museums and the performing arts sectors.It is a must-read for students and researchers of theology and religious studies, Islamic studies, fine art, cultural studies and ethnic and racial studies
The resolution of the differential Sylvester matrix equations usin gbackward differentiation formula method
No full textThe resolution of the differential Sylvester matrix equations
\begin{equation}\label{1}
\left\{
\begin{array}{ll}
\dot{X}(t)=AX(t)+X(t)B+C,& \hbox{} \\
X(t_{0})=X_{0}, & t\in[t_{0},T_{f}],
\end{array}
\right.
\end{equation} où
usin gbackward differentiation formula method
Author : LAKHLIFA SADEK.
E-mail: [email protected]; [email protected]
The resolution of the differential Sylvester matrix equations usin gbackward differentiation formula method
No full textThe resolution of the differential Sylvester matrix equations
\begin{equation}\label{1}
\left\{
\begin{array}{ll}
\dot{X}(t)=AX(t)+X(t)B+C,& \hbox{} \\
X(t_{0})=X_{0}, & t\in[t_{0},T_{f}],
\end{array}
\right.
\end{equation} où
usin gbackward differentiation formula method
Author : LAKHLIFA SADEK.
E-mail: [email protected]; [email protected]
The resolution of the differential Sylvester matrix equations using Rosenbrock method
No full textThe resolution of the differential Sylvester matrix equations
\begin{equation}\label{1-3}
\left\{
\begin{array}{ll}
\dot{X}(t)=AX(t)+X(t)B+CD^{T},& \hbox{} \\
X(t_{0})=X_{0}, & t\in[t_{0},T_{f}],
\end{array}
\right.
\end{equation} où
using Rosenbrock method
Author : LAKHLIFA SADEK.
E-mail: [email protected]; [email protected]
The solve the matrix Riccati differential equation
No full textThe numerical solution of the continuous-time symmetric differential matrix Riccati equations using Rosenbrock method on the time interval of the form:
\begin{equation}\label{1} \left\{ \begin{array}{ll} \dot{X}(t)=A^TX(t)+X(t)A-X(t)BB^TX(t)+C^TC,& \hbox{} \\ X(t_{0})=X_{0}, & \end{array} \right. \end{equation}
where , and .
Author : LAKHLIFA SADEK.
E-mail: [email protected]; [email protected]
In vitro rumen fermentation characteristics of some naturally occurring and synthetic sugars
No full textSoluble sugars are thought to play an important role in the fermentation processes of the rumen but their actual fermentation rate has not been fully assessed. Some sugars are also used as markers to assess gut permeability in monogastrics but their use in ruminants can be compromised by the hydrolytic activity of rumen microflora. This study aimed to evaluate the fermentability of some naturally occurring and synthetic soluble sugars. The synthetic soluble sugars were included to verify their possible use as markers for studies of gut permeability in ruminants. In vitro gas and volatile fatty acid (VFA) production from glucose, fructose, xylose, galactose, sucrose, lactose, arabinose mannitol, lactulose and sucralose were measured in a 24 h-incubation trial using ruminal fluid from heifers adapted or not-adapted to additional sugars in the diet, and with caecal content as inocula. Gas production from the same sugars was further evaluated in a 72 h-incubation trial with not-adapted rumen fluid only. Gas and VFA production were not affected by feeding additional sugars, but significant effects of inocula (ruminal vs caecal), sugars and their interaction were observed. Caecal inoculum produced less gas but higher VFA than ruminal inocula. Fructose and glucose had the highest rates of gas production (10.57% h-1 and 10.42% h-1, respectively), and lactulose and mannitol the lowest (3.47% h-1 and 4.63% h-1, respectively) when fermented with ruminal fluid. Sucralose seemed to have a negative effect on microbial fermentations. Our results indicate that lactulose and mannitol might largely escape rumen fermentation, suggesting their possible use as markers to test gut permeability also in ruminants. This needs to be verified in vivo
Pressure drops: scaling, research prioritization and validation-consistency
No full textPressure drop is an important parameter in nuclear T-H (thermal-hydraulics) as well as in nuclear safety analysis. In
this paper, a methodology has been proposed for assessing the impact of friction and acceleration pressure drop in
reactors through the integration of the scope among Prioritization, V&V&C (Verification & Validation &
Consistency), Scaling and Against Annapolis 1996 Specialists Meeting, This paper provides a preliminary analysis of
the errors in pressure drop calculations in both single-phase and two-phase simulations with system T-H code of
RELAP5 within consideration of V&V&C. The paper suggests considering pressure drop as a significant evaluation
parameter in the scaling assessment framework, advocating for additional thermal-hydraulic experiments and model
developments. Future research will involve further computational comparisons of benchmark pressure drop
experiments and methodological studies on pressure drop assessment
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