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Search Results: 1 - 10 of 24 matches for " Abliz Ablimit "
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Status of Asiatic Wild Cat and its habitat in Xinjiang Tarim Basin, China  [PDF]
Ablimit Abdukadir, Babar Khan
Open Journal of Ecology (OJE) , 2013, DOI: 10.4236/oje.2013.38063
Abstract:

The Asiatic Wild CatFelis silvestris ornataisregarded as “Least concerned” (LC) first, as “Vulnerable” (VU) and following “Endangered” (EN) and then “Critically endangered” (CR) species as finally and originally concentrative distribute in Xinjiang Tarim Basin region in northwest China. This paper provides comprehensive information on bio-morphology, habitat selectivity, environmental condition, habit, preyfeed source and every item of composition, and relationship among Wild Cat and domestic cat at presence investigated in 2004-2006 and 2011- 2013 as especial study. The paper also illustrated some dynamical statistics of wild cat’ pelt collection by national trade from three prefectures in the last 40 years. Briefing the results of indication that large scale and continuous openup land for cotton in unplanned, exploit petroleum and natural gas, misapply water and destroy desert vegetation, poaching and killing prey objectives, etc., of them long-term effects on plants functional density and qualities of the cat surviving habitat and productivity, whereas pressures of increasing human population to fragile desert ecosystem showed efficiency and desirable effects of the cat surviving.

 

Asymptotic Stability of the Dynamic Solution of an N-Unit Series System with Finite Number of Vacations  [PDF]
Abdugeni Osman, Abdukerim Haji, Askar Ablimit
Journal of Applied Mathematics and Physics (JAMP) , 2018, DOI: 10.4236/jamp.2018.611185
Abstract: We investigate an N-unit series system with finite number of vacations. By analyzing the spectral distribution of the system operator and taking into account the irreducibility of the semigroup generated by the system operator we prove that the dynamic solution converges strongly to the steady state solution. Thus we obtain asymptotic stability of the dynamic solution of the system.
Isolation and Identification of Metal Resistance Green Alga
金属离子抗性衣藻品系的分离筛选及其鉴定

DONG Zhi-Fang,Hasanjan Abdulla,Abliz Ablimit,Tursun Mamat,Gopur Mijit,
董志芳
,艾山江·阿布都拉,阿布力孜·阿布力米提,图尔逊·买买提,吾甫尔·米吉提

植物科学学报 , 2010,
Abstract: A total of 62 green alga strains were isolated from the soils of Nanshan Mountain, Xinjiang. Used the blot method to characterize these metal resistance, the results indicated that XJU-3、XJU-28 and XJU-36 have resistance to 0. 1 mmol · L~(-1) Co~(2+) ;XJU-28 has resistance to 1 mmol·L~(-1) Zn~(2+) and Fe~(3+) , XJU-36 has resistance to 0. 05 mmol·L~(-1) Cu~(2+). Taxonomic evalua-tion of the three strains were investigated based on the morphology and the internal transcribed spacer (ITS) regions (including the 5. 8S). Based on morphological characteristics, the three strains were likely to Chlamydomonas. Phylogenetic reconstruction with the Neighbor-joining (NJ) method using sequences of ITS(including the 5. 8S) indicated that XJU-3 and XJU-28 are closed to Chlamydomonas zebra. XJU-36 is closed to Chlamydornonas petasua.
Formation of Binary Millisecond Pulsars by Accretion-Induced Collapse of White Dwarfs under Wind-Driven Evolution
Iminhaji Ablimit,Xiang-Dong Li
Physics , 2014, DOI: 10.1088/0004-637X/800/2/98
Abstract: Accretion-induced collapse of massive white dwarfs (WDs) has been proposed to be an important channel to form binary millisecond pulsars (MSPs). Recent investigations on thermal timescale mass transfer in WD binaries demonstrate that the resultant MSPs are likely to have relatively wide orbit periods ($\gtrsim 10$ days). Here we calculate the evolution of WD binaries taking into account the excited wind from the companion star induced by X-ray irradiation of the accreting WD, which may drive rapid mass transfer even when the companion star is less massive than the WD. This scenario can naturally explain the formation of the strong-field neutron star in the low-mass X-ray binary 4U 1822$-$37. After AIC the mass transfer resumes when the companion star refills its Roche lobe, and the neutron star is recycled due to mass accretion. A large fraction of the binaries will evolve to become binary MSPs with a He WD companion, with the orbital periods distributed between $\gtrsim 0.1$ day and $\lesssim 30$ days, while some of them may follow the cataclysmic variable-like evolution towards very short orbits. If we instead assume that the newborn neutron star appears as an MSP and part of its rotational energy is used to ablate its companion star, the binaries may also evolve to be the redback-like systems.
The orbital period evolution of the supersoft X-ray source CAL 87
Iminhaji Ablimit,Xiang-Dong Li
Physics , 2015, DOI: 10.1088/0004-637X/815/1/17
Abstract: CAL 87 is one of the best known supersoft X-ray sources. However, the measured masses, orbital period and orbital period evolution of CAL 87 cannot be addressed by the standard thermal-timescale mass-transfer model for supersoft X-ray sources. In this work we explore the orbital evolution of CAL 87 with both analytic and numerical methods. We demonstrate that the characteristics mentioned above can be naturally accounted for by the excited-wind-driven mass-transfer model.
Effective Spatial Data Partitioning for Scalable Query Processing
Ablimit Aji,Vo Hoang,Fusheng Wang
Computer Science , 2015,
Abstract: Recently, MapReduce based spatial query systems have emerged as a cost effective and scalable solution to large scale spatial data processing and analytics. MapReduce based systems achieve massive scalability by partitioning the data and running query tasks on those partitions in parallel. Therefore, effective data partitioning is critical for task parallelization, load balancing, and directly affects system performance. However, several pitfalls of spatial data partitioning make this task particularly challenging. First, data skew is very common in spatial applications. To achieve best query performance, data skew need to be reduced. Second, spatial partitioning approaches generate boundary objects that cross multiple partitions, and add extra query processing overhead. Consequently, boundary objects need to be minimized. Third, the high computational complexity of spatial partitioning algorithms combined with massive amounts of data require an efficient approach for partitioning to achieve overall fast query response. In this paper, we provide a systematic evaluation of multiple spatial partitioning methods with a set of different partitioning strategies, and study their implications on the performance of MapReduce based spatial queries. We also study sampling based partitioning methods and their impact on queries, and propose several MapReduce based high performance spatial partitioning methods. The main objective of our work is to provide a comprehensive guidance for optimal spatial data partitioning to support scalable and fast spatial data processing in massively parallel data processing frameworks such as MapReduce. The algorithms developed in this work are open source and can be easily integrated into different high performance spatial data processing systems.
Study on fragmentation behavior of taxoids by tandem mass spectrometry
Abliz Zeper,Qicheng Fang,Xiaoting Liang,Mitsuo Takayama
Chinese Science Bulletin , 2000, DOI: 10.1007/BF02886172
Abstract: We have studied the fragmentation behavior of positive and negative ions of taxol and 6/8/6 type taxoids, the influence of different substituents on fragmentation, and the correlativity between fragmentation patterns and structure by MS/MS technique with different ionization methods such as FAB-MS, ESI-MS, etc. We have also investigated in detail the fragmentation of various molecular-related ions, such as [M+H]+, [M+Na]+ and [M-H] ions, and the formation pathways of characteristic fragment ions. It has been found that there exists some competing reaction between the loss of C-13 side chain and decomposition by loss of acetic acid. In addition, by comparing CID spectra obtained with low- and high-energy collision, it is seen that CID-MS/MS with low-energy collision is more suitable for the study of the structural analysis of small molecules and drug metabolites. The experimental results demonstrate that MS/MS spectra can reflect more effectively the slight difference of structure between the related compounds and their structural characteristic features than MS spectra, and can also provide a beneficial analysis basis for these kinds of compounds.
Study on fragmentation behavior of taxoids by tandem mass spectrometry

Zeper Abliz,FANG Qicheng,LIANG Xiaoting,Mitsuo Takayama,

科学通报(英文版) , 2000,
Abstract: We have studied the fragmentation behavior of positive and negative ions of taxol and 6/8/6 type taxoids, the influence of different substituents on fragmentation, and the correlativity between fragmentation patterns and structure by MS/MS technique with different ionization methods such as FAB-MS, ESI-MS, etc. We have also investigated in detail the fragmentation of various molecular-related ions, such as M+H]+, M+Na]+ and M-H] ions, and the formation pathways of characteristic fragment ions. It has been found that there exists some competing reaction between the loss of C-13 side chain and decomposition by loss of acetic acid. In addition, by comparing CID spectra obtained with low- and high-energy collision, it is seen that CID-MS/MS with low-energy collision is more suitable for the study of the structural analysis of small molecules and drug metabolites. The experimental results demonstrate that MS/MS spectra can reflect more effectively the slight difference of structure between the related compounds and their structural characteristic features than MS spectra, and can also provide a beneficial analysis basis for these kinds of compounds.
Optical Waveguide BTX Gas Sensor Based on Yttrium-Doped Lithium Iron Phosphate Thin Film
Patima Nizamidin,Abliz Yimit,Ismayil Nurulla,Kiminori Itoh
ISRN Spectroscopy , 2012, DOI: 10.5402/2012/606317
Abstract: Yttrium-doped LiFePO4 powder was synthesized using the hydrothermal method in one step and was used as a sensing material. An optical waveguide (OWG) sensor based on Yttrium-doped LiFePO4 has been developed by spin coating a thin film of LiFe0.99Y0.01PO4 onto a single-mode Tin-diffused glass optical waveguide. Light was coupled into and out of glass OWG employed by a pair of prisms. The guided wave transmits in waveguide layer and passes through the film as an evanescent wave. The sensing film is stable in air, but when exposed to target gas at room temperature, its optical properties such as transmittance (T) and refractive index ( ) were changed; thus, the transmitted light intensity was changed. The LiFe0.99Y0.01PO4 thin film OWG exhibits reversible response to xylene gas in the range of 0.1–1000?ppm. When the concentration of BTX gases was lower than 1ppm, other substances caused a little interference with the detection of xylene vapor. Compared to pure LiFePO4 thin film OWG, this sensor exhibited higher sensitivity to BTXs. 1. Introduction Benzene, toluene, and xylene (BTX) are volatile organic compounds (VOCs) of great social and environmental significance, are widely used in industry, and can present serious medical, environmental, and explosion dangers [1]. BTX is also classified as a human carcinogen and is a risk factor for leukemia and lymphomas. The regulated standard concentration of benzene is 1.0?ppb (3?μg/m3) in Japan. The guidelines for the upper indoor concentration limits of toluene and xylene are 70?ppb (260?μg/m3) and 200?ppb (870?μg/m3), respectively [2]. Because of BTX’s acute toxicities, there has been an increasing need for highly sensitive, rapidly responding, portable devices for monitoring trace levels of them in various environmental and industrial applications. Many works have been done on sensitivity to BTX such as electric noses [3, 4], chromatography [5], and electrochemical sensor [6], and these detectors are accurate, yet bulky and expensive, and require higher operating temperature. In comparison, the optical waveguide (OWG) sensors [7–9] are small in size, of high sensitivity, of fast response time, monitored at room temperature, and of intrinsically safe detection. Furthermore, they suffer little or no interference in the waveguide element of the sensor and can be made at a very low cost. A simple planar OWG consists of a substrate, a thin top layer (waveguide layer) with a refractive index greater than that of the substrate and the covering material (usually air) [8]. Single-mode Tin-diffused glass waveguide has a
Various correlations in a Heisenberg XXZ spin chain both in thermal equilibrium and under the intrinsic decoherence
Jiang-Tao Cai,Ahmad Abliz,Shu-Shen Li
Physics , 2011, DOI: 10.1007/s10773-012-1362-9
Abstract: In this paper we discuss various correlations measured by the concurrence (C), classical correlation (CC), quantum discord (QD), and geometric measure of discord (GMD) in a two-qubit Heisenberg XXZ spin chain in the presence of external magnetic field and Dzyaloshinskii-Moriya (DM) anisotropic antisymmetric interaction. Based on the analytically derived expressions for the correlations for the cases of thermal equilibrium and the inclusion of intrinsic decoherence, we discuss and compare the effects of various system parameters on the correlations in different cases. The results show that the anisotropy Jz is considerably crucial for the correlations in thermal equilibrium at zero temperature limit but ineffective under the consideration of the intrinsic decoherence, and these quantities decrease as temperature T rises on the whole. Besides, J turned out to be constructive, but B be detrimental in the manipulation and control of various quantities both in thermal equilibrium and under the intrinsic decoherence which can be avoided by tuning other system parameters, while D is constructive in thermal equilibrium, but destructive in the case of intrinsic decoherence in general. In addition, for the initial state $|\Psi_1(0) > = \frac{1}{\sqrt{2}} (|01 > + |10 >)$, all the correlations except the CC, exhibit a damping oscillation to a stable value larger than zero following the time, while for the initial state $|\Psi_2(0) > = \frac{1}{\sqrt{2}} (|00 > + |11 >)$, all the correlations monotonously decrease, but CC still remains maximum. Moreover, there is not a definite ordering of these quantities in thermal equilibrium, whereas there is a descending order of the CC, C, GMD and QD under the intrinsic decoherence with a nonnull B when the initial state is $|\Psi_2(0) >$.
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