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Identification and Estimation of Gaussian Affine Term Structure Models with Regime Switching  [PDF]
Gang Wang
Journal of Mathematical Finance (JMF) , 2014, DOI: 10.4236/jmf.2014.43014
Abstract:

We establish that [1]’s parameters are universally unidentified and a subset of their parameterization is over identified. As a solution to the problem with the identifiability, we propose a new representation of double-regime three-factor GDTSMs whose parameters are just-identified when the number of the pricing-with-error yields equals 2. This new parametrization has another advantage over [2] in that we can back out Q parameters and P parameters separately and make the estimation of structural parameters easier. Finally, we show that regime-switching three-factor arbitrage-free dynamic Nelson-Siegel model is a restricted special case of our model.

Arbitrage-Free Gaussian Affine Term Structure Model with Observable Factors  [PDF]
Gang Wang
Journal of Mathematical Finance (JMF) , 2015, DOI: 10.4236/jmf.2015.52013
Abstract: This paper analyzes a simple discrete-time affine multifactor model of the term structure of interest rates in which the pricing factors that follow a Gaussian first-order vector autoregression are observable and there are no possibilities for risk-free arbitrage. We present the theoretical results for the compatible risk-neutral dynamics of observable factors in a maximally flexible way consistent with no-arbitrage under the assumption that the factor loadings of some yields are specified exogenously.
Electronic Ratchet Nanodiodes  [PDF]
Kunyuan XU, Gang WANG
Engineering (ENG) , 2009, DOI: 10.4236/eng.2009.12015
Abstract: Using a two-dimensional ensemble Monte Carlo (EMC) method, electronic nanometer devices with different parameters are studied in detail. Calculation results show that at nanoscale the electric properties of interface inside the devices play an important role in determining the working properties of the devices. By properly arranging device structures, surface charges originated from device fabrication can be exploited to produce a predetermined electric potential in the devices. Based on this fact, two structures that can lead to an asymmetric potential along their nanochannel are proposed for designing strong nonlinear devices. Further studies indicate that Ratchet effect brought by the asymmetric potential results in diode-like current-voltage characteristics of the devices. Through optimizing device parameters, zero threshold voltage can be achieved, which is desired for detecting applications. Moreover, since the devices are at nanoscale, simulation results reveal that used as rectifiers the working frequencies can be up to a few THz.
The Development of the Street—Historical Investigation of Hankow Street before 1861  [PDF]
Gang Wang, Qipeng Liao
Current Urban Studies (CUS) , 2013, DOI: 10.4236/cus.2013.14020
Abstract: For a long period of time, space has only been regarded as an adjunct or background of other things. As Henri Lefebvre believes that space is not a pure physical space, but is the production of social change, social transition and social experience. It is also the production of the complex social relations together with which space together are involved in the historical process. Therefore only incorporating the street into the framework of social history, and regarding it as a part of the same process of social history, can we grasp its true essence? This paper is based on this to give an account of how Hankow street shaped and developed before 1861 and its role in historical process. This paper also reveals the role of the natural environment in the evolution of social history.
Research on Training and Motivation of Innovation Talents in State-Owned Enterprises  [PDF]
Gang Lu, Mingming Wang
Open Journal of Social Sciences (JSS) , 2015, DOI: 10.4236/jss.2015.37005
Abstract:

It is crucial to break the bondage on innovative talents growth to improve the speed and quality of reform and innovative development for state-owned enterprises. This paper has investigated the issue on training and motivation of innovative talents in state-owned enterprises. It has analyzed the root causes from the aspects of value guidance, market function and innovation cultures. Meanwhile, it has presented the transformation approach of talents training and motivation from the aspects of international competition, Chinese situation, people-oriented principle, flexible management, etc.

Development of Wearable Semi-invasive Blood Sampling Devices for Continuous Glucose Monitoring: A Survey  [PDF]
Gang Wang, Martin P. Mintchev
Engineering (ENG) , 2013, DOI: 10.4236/eng.2013.55B009
Abstract: Semi-invasive blood sampling devices mimic the way female mosquitoes extract blood from a host. They generally consist of a microneedle, a microactuator for needle insertion, a blood extraction mechanism and a blood glucose sensor. These devices have great potential to overcome the major disadvantages of several current blood glucose monitoring methods. Over last two decades, extensive research has been made in all of these related fields. More recently, several wearable devices for semi-invasive blood sampling have been developed. This review aims at summarizing the current state-of-the-art development and utilization of such wearable devices for continuous monitoring of blood glucose levels, with a special attention on design considerations, fabrication technologies and testing methods.
A Primary Study on Making the Decision of the Selection of Multimodal Transport
Gang Wang
Modern Applied Science , 2009, DOI: 10.5539/mas.v1n4p11
Abstract: When you drink a bottle of Australian wine, probably you will never ask youself the question how it travels from Australia to your country? The simple answer is that the international supply chain makes it happen. There are several factors are very important when multinational enterprises make the decision to select multimodal transport.
Several Main Factors Influence Western Enterprises’Decisions to Invest in Emerging Economies
Gang Wang
International Journal of Business and Management , 2009,
Abstract: With the development of globalisation and foreign direct investment, international economic integration has been advancing for many years. Especially, a large amount of capital flow transfer from western counties to developing countries. However, there are several factors have to be considered when foreign investors dive into Chinese market.
Study on Method of Semantic Extraction Based on Eye Tracking
WANG Gang
Journal of Chongqing Normal University , 2013,
Abstract: It is important for recommendation system of E business to predicate consumer's habits by eyes gaze tracking.We explore algorithms to identify people's enjoyment by referencing Find s algorithm,it includes getting the weight of eyes parameters by getting the distance of object examples and negative examples,eyes parameters include the eye gazing time,the pupil size,the blink times and the looking back times.We use SEBET (Semantic Extraction Based Eye Tracking) algorithm to calculate the distance of object examples and negative examples,so we can decide whether consumers enjoy the goods or not from the distance,we extract the emotion semantic from eye tracking successfully.Experiments show the efficiency of our algorithm.
Methodology Research of Ontology Building in Semantic Web
Gang Wang
Computer and Information Science , 2010, DOI: 10.5539/cis.v3n4p236
Abstract: This paper describes two concepts on the Semantic Web and Ontology and points out the core role of Ontology in Semantic Web. Moreover, the writer gives a Double-Channel Helix Methodology and expounds its advantages at the structure and the task-flow.
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