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Search Results: 1 - 10 of 486 matches for " Zaidi Yaseen "
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On Mixed Abstraction, Languages, and Simulation Approach to Refinement with SystemC AMS
Zaidi Yaseen,Grimm Christoph,Haase Jan
EURASIP Journal on Embedded Systems , 2010,
Abstract: Executable specifications and simulations are cornerstone to system design flows. Complex-mixed-signal embedded systems can be specified with SystemC AMS which supports abstraction and extensible models of computation. The language contains semantics for module connections and synchronization required in analog and digital interaction. Through the synchronization layer, user defined models of computation, solvers and simulators can be unified in the SystemC AMS simulator for achieving low-level abstraction and model refinement. These improvements assist in amplifying model aspects and their contribution to the overall system behavior. This work presents cosimulating refined models with timed data flow paradigm of SystemC AMS. The methodology uses C-based interaction between simulators. An RTL model of data encryption standard is demonstrated as an example. The methodology is flexible and can be applied in early design decision tradeoff, architecture experimentation, and particularly for model refinement and critical behavior analysis.
On Mixed Abstraction, Languages, and Simulation Approach to Refinement with SystemC AMS
Yaseen Zaidi,Christoph Grimm,Jan Haase
EURASIP Journal on Embedded Systems , 2010, DOI: 10.1155/2010/489365
Abstract: Executable specifications and simulations are cornerstone to system design flows. Complex-mixed-signal embedded systems can be specified with SystemC AMS which supports abstraction and extensible models of computation. The language contains semantics for module connections and synchronization required in analog and digital interaction. Through the synchronization layer, user defined models of computation, solvers and simulators can be unified in the SystemC AMS simulator for achieving low-level abstraction and model refinement. These improvements assist in amplifying model aspects and their contribution to the overall system behavior. This work presents cosimulating refined models with timed data flow paradigm of SystemC AMS. The methodology uses C-based interaction between simulators. An RTL model of data encryption standard is demonstrated as an example. The methodology is flexible and can be applied in early design decision tradeoff, architecture experimentation, and particularly for model refinement and critical behavior analysis.
Contribution to the Petrography, Geochemistry, and Petrogenesis of Zarqa-Ma’in Pleistocene Alkali Olivine Basalt Flow of Central Jordan  [PDF]
Ibrahim Ahmad Ali Bany Yaseen
International Journal of Geosciences (IJG) , 2014, DOI: 10.4236/ijg.2014.56059
Abstract:

The Zarqa-Ma’in basalt (MB) occurs near a plateau basalt (wadi fills) covering about 15 km2 of Makawir, Ataruz, and Hammat um Hasana cone areas in central Jordan. The tectonic evolution occurred through intraplate volcanism and erupted through fissure systems along the Dead Sea, transforming the fault during Miocene to Pleistocene period. Three stages of eruption of MB have been recorded during Pleistocene from 6 to 0.6 Ma. The petrographic analyses data show that the MB rocks are composed of plagioclase, olivine, pyroxene, and magnetite, including secondary minerals calcite, iddingsite, serpentine, and zeolite. Furthermore, the MB rocks have narrow ranges of major and trace element concentrations, and are of under saturated silica type and belong to sodic alkaline magma series. The geochemical characteristics of MB indicate that MB was derived from a slightly fractionated magma as reflected by its high MgO (6.3 - 11.7 ppm) concentration with Mg number from 0.41 to 0.61, low silica content (40.83 - 47.55 wt%), and high Cr and Ni concentrations (115 - 475 and 105 - 553 ppm, respectively). This basalt exhibited low degree of partial melting (10%) for garnet peridotite mantle source. The model mineral fractionation showed that the MB could be fractionated to clinopyroxene, orthopyroxene, olivine, and plagioclase.

Petrography and Mineral Chemistry of the Almanden Garnet, and Implication for Kelyphite Texture in the Miocene Alkaline Basaltic Rocks North East Jordan  [PDF]
Ibrahim Ahmad Ali Bany Yaseen
International Journal of Geosciences (IJG) , 2014, DOI: 10.4236/ijg.2014.52024
Abstract:

The Miocene alkali basaltic rocks cover the northeastern part of Jordan, within Harrat Al-Shaam plateau. The volcanic concentrated along the Dead Sea boundary and spread around the north east of Jordan area, and was considered as interplat volcanic field in Jordan. The volcanic basalt is associated with xenoliths fragmental rocks or xenocryst minerals. Nine samples were collected from the study area and analyzed for XRD, XRF and SEM. These samples presented the xenoliths rocks and minerals existing in the study area. This study is focused on the garnet and pyroxene xenoliths minerals in Tulayl Al-Hasna area within Ufayhim Formation. Hand samples are characterized by coarse aggregates of garnets up to (2 cm in diameter) with dark brown to red color, and highly fresh fractures. Also, the pyroxene (<1.5 cm) with gray to dark green color, and the olivine (range 3 - 4 mm) are pale green to dark green and pale yellowish color. In thin sections, plagioclase phenocryst in the garnet presented corona texture. In addition, garnet surrounded by orthopyroxene refers to kelyphite texture. There are two types of kelyphite texture fibers and radial as shown in Scanning Electron Microscope photomicrograph. The mineralogical analyses of garnet for X-Ray Diffraction are composed of almandine, pyrope and majorite. The existence of minerals reflects the high pressure and temperature of the upper mantle origin. The chemical analysis showed the average composition of garnet as follow (Alm 42.78, Pyro 41.04, Gross 16.18), pyroxene (Wo 16.90, Fs 20.37, En 62.73). This referred to presentation of the following elements Mg, Fe and Ca in the garnet. As a result, the basaltic garnet xenoliths were from shallow lithosphere mantle origin.

Petrography, Geochemistry and Petrogensis of Basal Flow from Ar-Rabba Area, Central Jordan  [PDF]
Ibrahim Ahmad Ali Bany Yaseen
International Journal of Geosciences (IJG) , 2016, DOI: 10.4236/ijg.2016.73030
Abstract: Thirty basaltic rock samples collected from a central Jordan at Ar-Rabba area were studied. The samples cover about 20 km2from the Al-Rabba basalt flow. The Al-Rabba Basalt (RB) introduced Miocene to Pleistocene period. Petrography, Geochemistry and Petrogenesis investigations were carried out for the RB. The petrography analyses of the RB rocks are composed of plagioclase, pyroxene, olivine, opaque minerals (magnetite), and including secondary minerals calcite, iddingsite, and clay. The RB rocks have low range of major and trace elements concentrations, and under sodic alkaline magma series. The geochemical analysis data of RB indicated that RB was derived from a slightly fractionation magma as reflected by high MgO concentration range between (5.4 to 11.7 wt%), and Mg number from 42 to 63.8, and high concentration Cr (18 - 385 ppm), Ni (160 - 364 ppm) and low silica content ( 41.79 - 49.87 wt%). The chemical classification of RB is divided into basaltic, calc-alkaline to alkali basalt. The tectonic setting of RB is explained by using discrimination diagrams, Ti-Zr-Y, Ti-Zr-Sr and MgO-FeO(tot)-Al2O3, the RB plotted within the plate, calc-alkali and continental basalt respectively. The Rayleigh fractionation equation modeled for Sr and Ba vector diagram indicated the RB had fractionation for clinopyroxene, orthpyro-xene, olivine and trace of plagioclase.
Pro/Con debate: Should 24/7 in-house intensivist coverage be implemented?
Yaseen Arabi
Critical Care , 2008, DOI: 10.1186/cc6905
Abstract: Intensivist coverage traditionally has followed the 'business hours' model used in other professions, with reduced availability during weekends, weeknights, and holidays. This type of staffing would be appropriate if the need for the service were limited to business hours or if delaying the service (for example, from the night to the next morning) did not have any negative consequences. Clearly, this is not the case in critical care. First, critical illness does not recognize the boundaries of business hours, and therefore qualified intensivists need to be available around the clock. Studies have demonstrated that 66% to 69% of intensive care unit (ICU) admissions are admitted during off-hours [1,2]. Second, in no area more than in the ICU is the outcome of patients affected by providing the right treatment at the right time; delays in such treatment have been demonstrated to have negative consequences [3-5].Several studies have demonstrated increased mortality of acutely ill patients admitted during weekends, weeknights, and holidays, a phenomenon that has been attributed, at least in part, to lower staffing levels. A large Canadian study showed a significantly increased risk of death for patients admitted during weekends with several acute diagnoses, including ruptured abdominal aortic aneurysm, acute epi-glotitis, and pulmonary embolism [6]. A study from California showed higher adjusted mortality for patients admitted from the emergency department on weekends compared with those admitted on weekdays [7]. Of note, a larger 'weekend effect' was observed in major teaching hospitals [7]. Similarly, a Finnish study showed that weekend and weeknight ICU admissions were associated with increased mortality even after adjustment for severity of illness [8]. In a multi-center pediatric ICU study, emergency admissions during evening hours had a higher mortality, especially for patients admitted with shock, congenital heart disease, or after cardiac arrest [9]. Investigator
Plowing in the fields of the past
Yaseen Alatawany
Historical Kan Periodical , 2010,
Abstract: . .
Scientific misconduct and medical publishing
Arabi Yaseen
Annals of Thoracic Medicine , 2007,
Abstract:
Resources Allocation and Failures in Step Topology under Distributed Computing System  [PDF]
Taskeen Zaidi, Vipin Saxena
Journal of Software Engineering and Applications (JSEA) , 2013, DOI: 10.4236/jsea.2013.61002
Abstract:

In the past years, distributed computing is gaining the popularity due to reduction in execution time and low cost involvement. On the basis of this, Mobile Adhoc Network (MANET) is also increasing worldwide with major advantage that it has no involvement of wire and transfer of data can be done by the virtual paths if the existing path is congested. In the present work, MANET is considered in the form of step topology which consists of heterogeneous collection of the devices. The work demonstrates the resources allocation for execution of tasks and it consists of selection of right path if the link failures and by pass link failures. It also consists of the resource management over the new proposed step topology. Entire work is modeled with the help of well known modeling language known as Unified Modeling Language (UML) and model demonstrates the resources allocation for execution of the tasks.

Deadlock Detection and Avoidance in Static Step Topology under Distributed Environment  [PDF]
Taskeen Zaidi, Vipin Saxena
Journal of Software Engineering and Applications (JSEA) , 2013, DOI: 10.4236/jsea.2013.62008
Abstract:

During the past years, the distributed computing approach has become very popular due to various advantages over centralized approach. In the distributed approach, the execution of a process has reduced and also it requires low cost for installation. Many of the researchers are using the modeling approach for solution of the software and hardware architecture research problems. The most popular approach of modeling is known as Unified Modeling Language based on the object-oriented technology. In the present work, a method of deadlock detection is explained for the newly proposed static step topology for the distributed network. In the step topology, the processes are taken as a task, sub task, macro, subroutine, etc which are executed in reflexive and symmetric manners when the systems are interconnected to each other under distributed environment and avoidance technique is also presented for the same. The deadlock detection technique is presented through a UML class model.

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