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The ZigBee Based Wireless Sensor and Actor Network in Intelligent Space Oriented to Home Service Robot  [PDF]
Fei Lu, Guo-Hui Tian
Int'l J. of Communications, Network and System Sciences (IJCNS) , 2012, DOI: 10.4236/ijcns.2012.55037
Abstract: In the study of intelligent space oriented to home service robot, an important technology is how to construct an communication network which has the characters of high reliability and easy building. In this paper, based on the characteristics of ZigBee protocol, ZigBee technology is used to construct a wireless sensor and actor network. Several intelligent services based on ZigBee wireless sensor and actor network are shown to certify the reliability of this communication network. ZigBee wireless sensor and actor network builds an information bridge for the components in the intelligent space, the spatially distributed devices are connected together seamlessly. With this network, robot can share the mass information in the intelligent space and improve its performance with \"light-packs\", devices in intelligent space, such as lamp, curtain can be controlled autonomously.
The Effects of Trust and Contractual Mechanism on Working Relationships—An Empirical Study in Engineering Construction Projects  [PDF]
Shuping Guo, Ping Lu, Yinqiu Song
American Journal of Industrial and Business Management (AJIBM) , 2013, DOI: 10.4236/ajibm.2013.36062
Abstract: Inefficiency is usually one of the perceived ills within the construction projects and relationships among participants needing improvement. With the rising trend of partnerships in engineering construction projects, trust as an essential element in partnerships has become of increasing concern too. A growing stream of study has discussed the importance of trust in promoting interpersonal relationships among project participants. And formal contract has been closely watched which can mitigate exchange hazards. However, the relation between trust and contract is controversial. Based on cross-sectional survey data, regression analysis was used to test the impact of trust on satisfaction with working relationships and project performance in engineering construction projects in China. Likewise, the moderating effect of contractual mechanism on the relationship between trust and working relationships is explored. The results show that working relationships are positively associated with trust and satisfying working relationships have significant impact on project performance. The empirical findings also support the moderating effect of contractual mechanism. The conclusions enrich the research of working relationship, and provide some practical implications for enterprises.
Impact of Videoconference with Native English Speakers on Chinese EFL Learners’ Oral Competence and Self-Confidence  [PDF]
Ruiling Lu, Timothy A. Goodale, Yanbing Guo
Open Journal of Social Sciences (JSS) , 2014, DOI: 10.4236/jss.2014.22008
Abstract:

This study presents an educational collaborative project between two colleges in the United States and China. Forty-five Chinese preservice teachers and 5 American undergraduates participated in the project which involved a 10-week online synchronous videoconference between the participants. The project aimed at improving Chinese EFL learners’ English oral skills as well as their confidence in teaching English language in future. Quasi-experiment design was employed to evaluate the effectiveness of the project. Results showed that online synchronous videoconference with native English speakers did have positive impacts on Chinese participants’ English pronunciation and oral fluency & coherent. No significant difference was found in confidence measures. The outcomes of the project contribute to the relevant literature with an applicable and low-cost English language training model for EFL learners.

The Fate of miRNA* Strand through Evolutionary Analysis: Implication for Degradation As Merely Carrier Strand or Potential Regulatory Molecule?
Li Guo,Zuhong Lu
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0011387
Abstract: During typical microRNA (miRNA) biogenesis, one strand of a ~22 nt RNA duplex is preferentially selected for entry into a silencing complex, whereas the other strand, known as the passenger strand or miRNA* strand, is degraded. Recently, some miRNA* sequences were reported as guide miRNAs with abundant expression. Here, we intended to discover evolutionary implication of the fate of miRNA* strand by analyzing miRNA/miRNA* sequences across vertebrates.
Distribution and origin of aerosol and its transform relationship with CCN derived from the spring multi-aircraft measurements of Beijing Cloud Experiment (BCE)
GuangXian Lu,XueLiang Guo
Chinese Science Bulletin , 2012, DOI: 10.1007/s11434-012-5136-9
Abstract: The atmospheric aerosol distribution, source and relationship with cloud condensation nuclei (CCN) observed during the Beijing Cloud Experiment (BCE) are analyzed. The results show that the high number concentrations of aerosol mainly distributed below 4500 m, and the magnitude could reach to 103 cm 3. Above 4500 m, the aerosol number concentrations decreased to 101 cm 3 as the altitude increases, and the aerosol mean diameters were between 0.16 and 0.19 μm. Below 4500 m, the number size distributions of aerosol showed a bimodal (multimodal) mode, and an unimodal mode above it. Due to the different sources of aerosol, the conversion ratios of aerosol to CCN were less than 20% below 4500 m, and reached 50% above the level at 0.3% supersaturation. The back trajectories showed that aerosols at higher levels above 4500 m were strongly affected by large-size particles and those below 4500 m were strongly affected by local or regional pollution. Based on observations, a relationship between the CCN number concentration and aerosol number concentration is established.
Advantages and Difficulties of Chinese Learning as a Foreign Language in Taiwan
Guo-ping LU
Cross-Cultural Communication , 2005, DOI: 10.3968/1734
Abstract: this article discussed that how does Taiwan deal with the trend and demands of Chinese learning in globalization when “Chinese century” is coming in 21 century. It is because that there was no strong competition in Chinese market, Taiwan had been the main destination that people studied the Chinese in the world before the reform and opening-up of China’s Mainland. Taiwan always keeps stable amount that people come here and learn the Chinese in Taiwan. Taiwan has trained hundreds and thousands of Chinese talents for more than one hundred countries in the world. However, in the pass 20 years, because of the economic grows of China, this change leading the global fever in Chinese. The global market of Chinese teaching suffer unprecedented impacts and challenges because most of the international personage turned to the continent area, where the living stander was improved fast, studying Chinese. If we analyzed with the concept “this is a sound right to international nation when we own the advantages Chinese teaching in the world”, Taiwan loses international visibility gradually. How to deal with this great challenge and how much will Taiwan do hard-working in this field? What kinds of fault will produce? All questions we will find in this text. Besides, Taiwan will gain what kind of advantages in the upsurge of “fever for Chinese” in the future. How does Taiwan to improve the foreign market of Chinese teaching and the stresses of international. This is a point of view this text wanted to point it. Key words: Taiwan, Teaching of Chinese, predicament, advantage, fever for Chinese Résumé : Cet article pose la question de la position de Taiwan face à la mode et la demande d’apprentissage du chinois dans le contexte de mondialisation, alors que le 21ème siècle est annoncé comme étant celui de la Chine. En raison de l’absence de concurrence sur le marché chinois, Taiwan a été la principale destination dans le monde des gens désirant apprendre le chinois jusqu’à la réforme et l’ouverture de la République Populaire de Chine. Taiwan continue d’accueillir un volume stable d’étrangers venant apprendre le chinois. Taiwan a en effet formé des centaines et des milliers de talents chinois pour plus de cent pays à travers le monde. Néanmoins, au cours des vingt dernières années, en raison de la croissance économique de la Chine, l’engouement général pour le chinois se déplace. Le marché global de l’apprentissage du chinois a souffert des bouleversements et des défis jusque là inconnus, dus à l’afflux des étrangers désireux d’apprendre le chinois vers désormais le continent,
Complete classification and stability of equilibria in a delayed ring network
Xuwen Lu,Shangjiang Guo
Electronic Journal of Differential Equations , 2008,
Abstract: In this paper, we consider a neural network model consisting of four neurons with delayed self and nearest-neighbor connections. We provide a full classification of all equilibria and their stability in the connection weighter parameter space. Such a classification is essential for the description of spatio-temporal patterns of the model system and for the applications to dynamic memory storage and retrieval.
Time-dependent Hartree-Fock studies of the dynamical fusion threshold
Guo Lu,Nakatsukasa Takashi
EPJ Web of Conferences , 2012, DOI: 10.1051/epjconf/20123809003
Abstract: A microscopic description of dynamical fusion threshold in heavy ion collisions is performed in the framework of time-dependent Hartree-Fock (TDHF) theory using Skyrme energy density functional (EDF). TDHF fusion threshold is in a better agreement with experimental fusion barrier. We find that the onset of extra push lies at the effective fissility 33, which is consistent with the prediction of Swiatecki s macroscopic model. The extra push energy in our TDHF simulation is systematically smaller than the prediction in macroscopic model. The important dynamical effects and the way to fit the parameter might be responsible for the different results.
The Temporal-Spatial Distribution of Shule River Alluvial Fan Units in China Based on SAR Data and OSL Dating
Lu Zhang,Huadong Guo
Remote Sensing , 2013, DOI: 10.3390/rs5126997
Abstract: Alluvial fans in arid and semi-arid regions can provide important evidence of geomorphic and climatic changes, which reveal the evolution of the regional tectonic activity and environment. Synthetic aperture radar (SAR) remote sensing technology, which is sensitive to geomorphic features, plays an important role in quickly mapping alluvial fan units of different ages. In this paper, RADARSAT-2 (Canada’s C-band new-generation radar satellite) and ALOS-PALSAR (Japan’s advanced land observing satellite, phased array type L-band SAR sensor) data, acquired over the Shule River Alluvial Fan (SRAF), are used to extract backscattering coefficients, scattering mechanism-related information, and polarimetric characteristic parameters. The correlation between these SAR characteristic parameters and fan units of the SRAF of different ages was studied, and the spatial distribution of fan units, since the Late Pleistocene, was extracted based on the Maximum Likelihood classification method. The results prove that (1) some C-band SAR parameters can describe the geomorphic characteristics of alluvial fan units of different ages in the SRAF; (2) SAR data can be used to map the SRAF’s surface between the Late Pleistocene and the Holocene and to extract the spatial distribution of fan units; and (3) the time-spatial distribution of the SRAF can provide valuable information for tectonic and paleoenvironmental research of the study area.
Band Gap of Strained Graphene Nanoribbons
Yang Lu,Jing Guo
Physics , 2009,
Abstract: The band structures of strained graphene nanoribbons (GNRs) are examined by a tight binding Hamiltonian that is directly related to the type and strength of strains. Compared to the two-dimensional graphene whose band gap remains close to zero even if a large strain is applied, the band gap of graphene nanoribbon (GNR) is sensitive to both uniaxial and shears strains. The effect of strain on the electronic structure of a GNR strongly depends on its edge shape and structural indices. For an armchair GNR, uniaxial weak strain changes the band gap in a linear fashion, and for a large strain, it results in periodic oscillation of the band gap. On the other hand, shear strain always tend to reduce the band gap. For a zigzag GNR, the effect of strain is to change the spin polarization at the edges of GNR, thereby modulate the band gap. A simple analytical model is proposed to interpret the band gap responds to strain in armchair GNR, which agrees with the numerical results.
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