Power-Effective in the Cell Sectorization Using Wide-Beam and Narrow-Beam for Multi-hop Relay Network

Multi-hop relay is a significant topic in the wireless communication and it is provisioned in the 802.16j standards.At present,the major research on multi-hop relay is focused on the capacity,coverage,coordination,throughput,etc.But in this paper,a new concept about power-effective was discussed.Then,two power-effective coverage extension methods using two sectorized cellular approaches were introduced,i.e.,the widebeam three sector cell(WBTC) and the narrow-beam three sector cell(NBTC).Under such topologies,the consumption of power and optimal numbers of base stations(BSs) and relay stations(RSs) with respect to various user traffic densities were investigated.Finally,it is found that the performance of WBTC is better than NBTC.

An Analytical Solution to the Model for Single Three-Level Trapped Ion Driven by External Fields

The interaction of a single three-level trapped ion with two laser beams has been studied theoretically. With application of two successive unitary transformations, an analytical solution to this quantum system has been obtained.

Characterization of hepatic progenitors from human fetal liver during second trimester

AIM： To enrich hepatic progenitors using epithelial cell adhesion molecule （EpCAM） as a marker from human fetal liver and investigate the expression of human leukocyte antigen （HLA） and their markers associated with hepatic progenitor cells. METHODS： EpCAM ＋ve cells were isolated using magnetic cell sorting （MACS） from human fetuses （n = 10） at 15-25 wk gestation. Expression of markers for hepatic progenitors such as albumin, alpha-fetoprotein （AFP）, CD29 （integrin ~1）, CD49f （integrin c^6） and CD90 （Thy 1） was studied by using flow cytometry, immunocytochemistry and RT-PCR; HLA class Ⅰ （A, B, C） and class Ⅱ （DR） expression was studied by flow cytometry only. RESULTS： FACS analysis indicated that EpCAM ＋ve cells were positive for CD29, CD49f, CD90, CD34, HLA class I, albumin and AFP but negative for HLA class Ⅱ （DR） and CD45. RT PCR showed that EpCAM ＋ve cells expressed liver epithelial markers （CK18）, biliary specific marker （CK19） and hepatic markers （albumin, AFP）. On immunocytochemical staining, EpCAM ＋ve cells were shown positive signals for CK18 and albumin. CONCLUSION： Our study suggests that these EpCAM ＋ve cells can be used as hepatic progenitors for cell transplantation with a minimum risk of alloreactivity and these cells may serve as a potential source for enrichment of hepatic progenitor.

3D FEM analysis for layered rock considering anisotropy of shear strength

An empirical expression of cohesion （C） and friction angle （Ф） for layered rock was suggested. This expression was compared with a test result made by the former researchers. The constitutive relationship of a transversely isotropic medium and Mohr-Coulomb criterion in which C and Ф vary with directions were employed, and a relative 3D elasto-plastic FEM code was developed, in which the important thing was to adopt a search-trial method to find the orientation angle （p） of shear failure plane （or weakest shear plane） with respect to the major principal stress as well as the corresponding C and Ф Taking an underground opening as the calculation object, the numerical analyses were carried out by using the FEM code for two cases of transversely isotropic rock and isotropic rock, respectively, and the computation results were compared. The results show that when the rock is a transversely isotropic one, the distributions of displacements, plastic zones and stress contours in the surrounding rock will be non-axisymmetric along the tunnel＇s vertical axis, which is very different from that of isotropic rock. The stability of the tunnel in transversely isotropic rock is relatively low.

Grid convergence study in the resistance calculation of a trimaran

As a new type of hull form,trimaran has remarkable excellent performances and has drawn more and more attention.When the viscous CFD technology now available is applied to the research of resistance performance of trimaran,the spatial discretization would usually result in the grid error and uncertainty,and thus the considerable discrepancy between the numerical results and the experimental data.In order to ascertain how much the grid would affect the calculation,the grid convergence should be studied.A mathematical trimaran was chosen as an example,with the commercial code CFX for the simulation,VOF for surface treatment,and the grid study was carried out based on two different turbulence models.It was concluded that carrying out grid study is helpful in estimating the grid error and uncertainty,and indicating the direction of improving the credibility of the numerical calculation, and,in addition to grid errors and uncertainties,the turbulence modeling errors and uncertainties contribute to the simulation errors.

Static and Dynamic Damage Analysis of Mass Concrete in Hydropower House of Three Gorges Project

This paper establishes a 3D numerical model for 15# hydropower house of the Three Gorges Project (TGP) and performs a nonlinear static and dynamic damage analysis. In this numerical model, a coupling model of finite and infinite elements for simulating infinite foundation of hydropower station is adopted. A plastic-damage model based on continuum damage mechanics, which includes the softening and damage behavior under tension is considered for the concrete material. The dynamic equilibrium equations of moti...

Individualized Pixel Synthesis and Characterization of Combinatorial Materials Chips

Conventionally, an experimentally determined phase diagram requires studies of phase formation at a range of temperatures for each composition, which takes years of effort from multiple research groups. Combinatorial materials chip technology, featuring high-throughput synthesis and characterization, is able to determine the phase diagram of an entire composition spread of a binary or ternary system at a single temperature on one materials library, which, though significantly increasing efficiency, still requires many libraries processed at a series of temperatures in order to complete a phase diagram. In this paper, we propose a "one-chip method" to construct a complete phase diagram by individually synthesizing each pixel step by step with a progressive pulse of energy to heat at different temperatures while monitoring the phase evolution on the pixel in situ in real time. Repeating this process pixel by pixel throughout the whole chip allows the entire binary or ternary phase diagram to be mapped on one chip in a single experiment. The feasibility of this methodology is demonstrated in a study of a Ge-Sb-Te ternary alloy system, on which the amorphouscrystalline phase boundary is determined.

Historical Canadian Fortress in the Latest Technology

The paper examines thoroughly how utilizing the latest technology, such as a PC （personal computer）, an iPad, or an iPhone, can entertain many people and allow them to learn about the archaeological findings that have become broadly available through the application of new technology. The paper assesses web usage through the difference in availability and convenience of PC and compact devices by connection to 3D augmented reality applications. Modem technology has allowed access to this information to become radically altered, whereas historical records and remains are dwindling. However, the development of 3D technology means that the general public can experientially pursue the dignity of historical buildings. It also becomes easier through the use of the latest technology to decipher the effectiveness of people＇s interaction with inclusive descriptions of the documentation. This research aims at verifying the visualization of Fort Frontenac by the use of a chronological renovation process. This paper is composed of five elements： an introduction, the historical records about the necessity of 3D modeling, heritage visualization by means of 3D modeling, web design, and iPad and iPhone usage, a comparison of the architectural change that occurred in the

The Tree of Death and Eternal Life

The ＂Tree of Death＂ is a metaphor I use to unlock my Christian assumptions on how the dead attain eternal existence in the afterlife state. The tree＇s unconcealedness, in this life and presumably the next, along with the moral habits an agent develops in this life explain the obstinacy of the dead, that is, how the agent＇s irrevocable decision to side with the God of Abraham, or not, is possible. For that to be the case, the existential relationships that generate personal identity in this life must accompany （individuate） the subject in the next life. In Christian philosophy, the person-making process mirrors the relationships of the Blessed Trinity. While Martin Heidegger is not a Christian philosopher, his view on truth and being＇s unconcealedness provides a useful piece of the argument to continue the Thomistic case for personal immortality. Heidegger is not a catholic philosopher, but the focus he places on being＇s unconcealedness is consonant with the focus Thomas Aquinas puts on the intelligibility of being. While Heidegger＇s discussion of being is rooted in Dasein＇s finitude, the Thomistic interpretation of being situates unconcealedness within the perspective of God＇s creative act. His vision resets the possibility of applying Heidegger＇s fundamental ontology beyond temporality. The paper develops through a discussion of the Tree＇s ＂branches, trunk, and roots＂ to conclude that the Christian perspective transforms Heidegger＇s view of death into ＂the ultimate possibility of possibility.＂

Sound transducer calibration of ambulatory audiometric system utilizing delta learning rule

An efficient calibration algorithm for an ambulatory audiometric test system is proposed. This system utilizes a personal digital assistant (PDA) device to generate the correct sound pressure level (SPL) from an audiometric transducer such as an earphone. The calibrated sound intensities for an audio-logical examination can be obtained in terms of the sound pressure levels of pure-tonal sinusoidal signals in eight-banded frequency ranges (250, 500, 1 000, 2 000, 3 000, 4 000, 6 000 and 8 000 Hz), and with mapping of the input sound pressure levels by the weight coefficients that are tuned by the delta learning rule. With this scheme, the sound intensities, which evoke eight-banded sound pressure levels by 5 dB steps from a minimum of 25 dB to a maximum of 80 dB, can be generated without volume displacement. Consequently, these sound intensities can be utilized to accurately determine the hearing threshold of a subject in the ambulatory audiometric testing environment.

Polysaccharide, Adenosine and Crude Triterpenoid Contents of Pleurotus Eryngfi and Its Immunostimulant Capacity in vitro

Purpose of the study was to demonstrate the ability of Pleurotus eryngii （PE） extracts to stimulate the production of nitric oxide （NO） and TNF-α as well as to evaluate the cell viability by the use of chicken peripheral blood mononuclear cells （PBMCs） and RAW 264.7 macrophages in vitro. The PE contained 341.0 ± 14.5 mg/g DW, 78,2 ± 4.1 Bg/g DW and 38.4 ＋ 3.3 mg/g DW of crude polysaccharide, adenosine and crude triterpenoid contents, respectively. The results of cell viability assay showed that 95,0% of chicken PBMCs and RAW 264.7 macrophages were survived under the treatment of 9.6 mg/mL of PE extracts by microculture tetrazolium assays （MTAs）. Moreover, the cell inhibitory activity did not show the 50% cyto-toxicity effect （ICs0）. In addition, no production by stimulated chicken PBMCs and RAW 264.7 macrophages exhibited individually the linear relations with the concentration of PE extracts, and they were approximately 65 μM and 45 p.M in 1600 μg/mL, respectively. The tendency with the release of TNF-α by RAW 264.7 maerophages also corresponded with concentration of PE extracts. It is concluded, PE extracts act as an immunostimulant for both tested cells but have no serious effect on inhibiting chicken PBMCs viability, and therefore it may be suggested as immune supplements for broilers.

Multiple Positive Solutions to a Nonlinear Two-point Boundary Value Problem with p-Laplacian

By a simple application of a new three functionals fixed point theorem, sufficient conditions axe obtained to guarantee the existence of at least three positive solutions for p-Laplacian equation： （φp（u′））′ ＋ α（t）f（t,u（t）） = 0 subject to nonlinear boundary value conditions. An example is presented to illustrate the theory.

Simulation of Corrosion Crack in Pretensioned Prestressed Concrete Members

Corrosion of PC tendon embedded in concrete deteriorates performance of PC （prestressed concrete） members. Corrosion crack observed in pretensioned PC members is different from that in reinforced concrete and post tensioned PC members. The purpose of this study is to clarify mechanisms of corrosion crack in pretensioned PC members. Contribution of compressive stress induced by prestressing force and arrangement of PC tendons on corrosion crack in pretensioned PC members is investigated through experiment and numerical analysis. Three dimensional finite element analyses were carried out to simulate corrosion crack in PC specimen. Based on the analytical and experimental results, the influencing factor of corrosion crack in pretensioned PC members is discussed. It was concluded that the contribution of compressive stress in concrete by prestressing force on corrosion crack is not significant and that the dominant reason for wider corrosion cracks in pretensioned PC members is the arrangement of PC tendons with small intervals.

A Review and Some Reflections on the Three Campaigns of lntra-Party Intensive Education since the New Century

In the new century, the Communist Party of China has successively launched three campaigns of intra-Party intensive education： the important thought of the Three Represents education campaign in rural areas, the Party-wide education campaign to maintain the vanguard nature of Party members mainly by putting the important thought of the Three Represents into practice and the campaign to intensively study and apply the Scientific Outlook on Development. Through these activities, the majority of Party members and cadres have received profound Marxist education, further deepening their understanding of the important thought of the Three Represents. The campaigns advanced the great project of Party building at a new historical starting point, and are thus of inspiring significance.

SPECIAL ISSUE： DIALOGUE, INTERACTION AND NEW DEVELOPMENTS IN PHILOSOPHY IN CONTEMPORARY CHINA- SPECIALIST FORUM ON CHINESE, WESTERN AND MARXIST PHILOSOPHIES：The current situation, problems and tasks before Chinese philosophy

The development of philosophy in contemporary China requires correct understanding and solving prominent practical problems in China＇s process of social development, providing proper rational thinking, value ideal and life orientation for the Chinese, and playing its role of guiding, regulating and promoting social progress. To achieve the goal, philosophy needs to shift from ＂system consciousness＂ to ＂problem consciousness,＂ so as to fulfill a paradigm transformation; to shift from ＂local horizon＂ to ＂world horizon,＂ so as to expand the horizon of our philosophy; and to shift from the tripartite division of Chinese, Western and Marxist philosophies to a ＂common horizon＂ for the three, so as to gradually establish the concept of ＂macro-philosophy.＂

向名师学习,做语文良师——语文名师成长大讲堂学习心得

语言文字是一个民族心灵的声音,是文化的基因.这富有灵性的文字,是有呼吸、有情感、有生命、有灵魂的.与这样的文字对话,就是在感受民族文化的呼吸、情感、生命与灵魂!

Topological Representations of Distributive Hypercontinuous Lattices

The concept of locally strong compactness on domains is generalized to general topological spaces. It is proved that for each distributive hypercontinuous lattice L, the space SpecL of nonunit prime elements endowed with the hull-kernel topology is locally strongly compact, and for each locally strongly compact space X, the complete lattice of all open sets O(X) is distributive hypercontinuous. For the case of distributive hyperalgebraic lattices, the similar result is given. For a sober space X, it is shown that there is an order reversing isomorphism between the set of upper-open filters of the lattice O(X) of open subsets of X and the set of strongly compact saturated subsets of X, which is analogous to the well-known Hofmann-Mislove Theorem.

Influences of Sense of Place on Farming Households' Relocation Willingness in Areas Threatened by Geological Disasters:Evidence from China

Scholars from environmental psychology,geography, disaster science, and sociology have recently focused attention on evacuation and relocation behaviors and influencing factors in hazard-threatened areas. However, existing studies are mainly focused on developed countries and the influence of individual characteristics,household characteristics, and the perception of risk of urban households on evacuation and relocation behaviors.Few studies examine developing countries and the influence of farmers' sense of place in geological hazardthreatened areas. Using statistics of farming households in an area threatened by landslides, this is a pilot study to explore the relationship of sense of place to the relocation willingness of farming households while controlling for other variables. The results show that:(1) Households with higher scores of place identity and place dependence are less willing to relocate, whereas place attachment has no significant relationship to household relocation willingness;(2) Risk perception dimensions, including probability,threat, and controllability have a significant relationship to household relocation willingness, while worry and fear of the unknown have no significant relationship;(3) Household characteristics, including income, whether a household has experienced economic loss from landslides, and social support are significantly correlated with household relocation willingness, while gender, age, experience, distance to hazard sites, size of household, children, older people, and housing material are not. The results for information and education are not robust. This study contributes to the current literature by improving the understanding of the relationship of sense of place to the relocation willingness of farming households in villages threatened by geological disasters in rural China.

Mao Zedong's “Three Worlds” Theory:Political Considerations and Value for the Times

Mao Zedong＇s theory of ＂the differentiation of three worlds＂ originated in his idea of ＂one intermediate zone＂ in the 1940s and 1950s, took initial shape with the idea of ＂two intermediate zones＂ in the 1960s and was officially formulated in the early 1970s. Taking national interests and the pursuit of sovereignty as its logical starting point, the law of the unity of opposites as its philosophical basis, the background of the Cold War as its historical platform, and opposition to hegemony as its diplomatic strategy, Mao Zedong advanced the well-known ＂three worlds＂ theory. As a hallmark achievement of China＇s diplomatic strategy and international relations theory, Mao＇s ＂three worlds＂ theory has a very special value for the times, especially with regard to its philosophy and principles in areas such as the principles of international ethics and justice, discourse power and national image, security mechanisms and strategic partnerships, and interdependence and cultural transcendence, all of which are precious ideological resources that we should cherish.