With Taiwan¡¦s economic development, and the wave of globalization as the impetus, after the government¡¦s ¡§No haste, be patient¡¨ policy and the mini-three links, on the first day of April, 2007, Penghu saw the launch of the conditional mini-three links. As the government gradually carries out cross-strait opening-up policies, the ¡§direct flight¡¨ is likely to arrive in the foreseeable future. As a response to the likelihood of the ¡§direct flight¡¨, what kind of impact and challenges will it bring to the Penghu economy? How should people in Penghu face up to them? What kind of opinions and suggestions should be made heard to the different levels in the government and the civil society? Dialogue mechanisms such as Denmark¡¦s Consensus Conference and the ¡§bottom up¡¨ method promoted by the World Bank of central Europe, as well as the US-borne ¡§Interactive Management¡¨, or IM, are approaches in which a small group of people gather in a small seminar to listen to one another¡¦s opinions and needs, and to negotiate in order to reach a consensus. These advanced and effective ways for people to come up with strategies all seeks wide participation from the people as their foundation, through a ¡§bottom up¡¨ dialogue, to generate practical and effective strategies. This research, based on the Public Affairs Management, or PAM, utilizes Nominal Group Technique, or NGT, and Interpretive Structural Modeling, or ISM, as a discussion method of interactive management. Three students work in a team. With the impact of cross-strait direct flights to Penghu as the theme, they start their discussions from the sub-themes which include the economy, the society and the government. The team carries out cross-domain analysis in these different fields, using research methods stretching from regional science, management science, and policy science, among others. The team applies different methods to different fields of study. Regardless of the limitation of the location and the departments, PAM and the output of regional analysis (analysis of the economic fundamentals, time series analysis, horizontal analysis, and gravity model) are used as the input of judgment analysis (Social Judgment Theory, or SJT). The output of regional analysis and judgment analysis are used as the input of policy analysis (Interactive Management, or IM). The above is combined with Penghu¡¦s existing historical information to yield independent, objective and credible data for cross-domain analysis, which is used by the discussion participants in sensible reasoning. The data are also internalized in the IM discussion platform to ensure the effectiveness of the participants, to distinguish among different groups, and to connect resources including the people, the time, the IV place and the event, so that the participants could engage in an effective dialogue on an equal footing provided by the discussion platform, where they study the impact of direct flights on Penghu¡¦s economy. After discussions and voting in two interactive seminars, the participants chose and proposed twelve strategies regarding ¡§the Impact of Direct Flights on Penghu¡Xfrom an Economic Point of View.¡¨ The cross-domain research method, encompassing different levels and the participants¡¦ cognitive psychology, engages the participants in sensible discussions so that the various powers can come together before they are optimized. This helps foster the formation of civil awareness and raise the levels of the civil society, contributing greatly to the goal of civil governance.

In this thesis, a CMOS tunable second-order log-domain filter using pseudo-exponential approximation is proposed. MOSFETs in the circuit are working in the saturation region. This filter has higher frequency response than that of weak inversion CMOS filter. The circuit has been fabricated with 0.35um CMOS technology. It operates with a supply voltage 3V, internal capacitance C is 1pF, the biasing current varies from 2uA~10uA. The cutoff frequency can be turned from 2MHz~37.5MHz. The harmonic distortion is 0.93% and the power consumption is 772uW.

No description available.

Thesis (Ph. D.)--Florida State University, 2003. / Advisor: Dr. L.P. Gorʹkov, Florida State University, Dept. of Physics. Title and description from dissertation home page (viewed Nov. 24, 2003). Includes bibliographical references.

Thesis (Ph. D.)--Ohio State University, 2003. / Title from first page of PDF file. Document formatted into pages; contains xviii, 182 p.; also includes graphics. Includes abstract and vita. Co-advisors: Robert Lee and Fernando L. Teixeira, Dept. of Electrical Engineering. Includes bibliographical references (p. 176-182).

Thesis (M. Sc.)--University of Hong Kong, 1999. / Includes bibliographical references (leaves 106-110).

Improving the system for how right-of-way (R/W) parcels are acquired for transportation projects in Texas can benefit the state. Currently, the Texas Department of Transportation (TxDOT) is allowed to obtain a property through negotiation or condemnation, meaning going through the court system. However, gaining parcels through condemnation not only increases project durations but also project budgets, which are both detrimental to public interests. These monetary and time concerns justify the need to develop strategies to streamline how TxDOT acquires R/W properties. This thesis aims to identify strategies that have the most significant positive impact on reducing a state’s condemnation rate, costs, and durations, while still being viable for the agency to implement. As states around the nation have already realized the benefit and made significant progress to reduce their condemnation rates, they act as models for Texas. Thus, extensive interviews with 25 representatives from transportation agencies around the nation and an extensive literature review are used to gather and evaluate applicable strategies. Similarly, applicable national and state laws and court cases have been reviewed to ensure the feasibility of the strategies. / text

The static and dynamic properties of spin distributions within domain walls(DWs) confined by Permalloy nanowire conduits are investigated by numerical simulations and high-speed magneto-optic polarimetry. Phase boundaries and critical points associated with DW spin distributions of various topologies are accurately determined using high-performance computing resources. Field-driven mobility curves that characterize DW propagation velocities in 20 nm thick nanowires are calculated with increasing the width of nanowires. Beyond the simple one-dimensional solution, the simulations reveal the four distinct dynamic modes. Oscillations of the field-driven DW velocity in Permalloy nanowires are observed above the Walker breakdown condition using high-speed magneto-optic polarimetry. A one-dimensional analytical model and numerical simulations of DW motion and spin dynamics are used to interpret the experimental data. Velocity oscillations are shown to be much more sensitive to properties of the DW guide structure (which also affect DW mobility) than the DW spin precessional frequency, which is a local property of the material. Transverse bias field effects on field-driven DW velocity are studied experimentally and numerically. DW velocities and spin configurations are determined as functions of longitudinal drive field, transverse bias field, and nanowire width. For a nanowire that supports vortex wall structures, factor of ten enhancements of the DW velocity are observed above the critical longitudinal drive-field (that marks the onset of oscillatory DW motion) when a transverse bias field is applied. The bias-field enhancement of DW velocity is explained by numerical simulations of the spin distribution and dynamics within a propagating DW that reveal dynamic stabilization of coupled vortex structures and suppression of oscillatory motion in the nanowire conduit resulting in uniform DW motion at high speed. Current-driven and current-assisted field-driven domain wall dynamics in ferromagnetic nanowires have thermal effects resulting from Joule heating, which make difficult to separate the spin-torque effects on DW displacements. To understand the thermal effects on DW dynamics, the temperature dependence of field-driven DW velocity is explored using high-bandwidth scanning Kerr polarimetry. Walker critical fields are decreased with increasing temperature and temperature-induced dynamic mode changes are observed. The results show that Joule heating effects are playing an important role in current-driven/current-assisted field-driven DW dynamics. / text

The motion of domain walls in magnetic wires is investigated numerically using the program LLG Micromagnetics Simulator. Samples with different dimensions such as 8000x200x5 nm³, 800x200x20 nm³, and 800x40x5 nm³ are studied. The calculations are performed both without and with moving boundary condition, and assuming smooth edge and rough edge samples. The results show that the velocity of the domain wall is affected by the external field, roughness of the edge, the damping constant, and the dimensions of the sample. Two kinds of domain wall vortex structures are identified in addition to simple transverse domain structures: anti-vortex and vortex.

Wavefield reconstruction is a crucial step in the seismic processing flow. For instance, unsuccessful interpolation leads to erroneous multiple predictions that adversely affect the performance of multiple elimination, and to imaging artifacts. We present a new non-parametric transform-based reconstruction method that exploits the compression of seismic data b the recently developed curvelet transform. The elements of this transform, called curvelets, are multi-dimensional, multi-scale, and multi-directional. They locally resemble wavefronts present in the data, which leads to a compressible representation for seismic data. This compression enables us to formulate a new curvelet-based seismic data recovery algorithm through sparsity-promoting inversion (CRSI). The concept of sparsity-promoting inversion is in itself not new to geophysics. However, the recent insights from the field of "compressed sensing" are new since they clearly identify the three main ingredients that go into a successful formulation of a reconstruction problem, namely a sparsifying transform, a sub-Nyquist sampling strategy that subdues coherent aliases in the sparsifying domain, and a data-consistent sparsity-promoting program. After a brief overview of the curvelet transform and our seismic-oriented extension to the fast discrete curvelet transform, we detail the CRSI formulation and illustrate its performance on synthetic and read datasets. Then, we introduce a sub-Nyquist sampling scheme, termed jittered undersampling, and show that, for the same amount of data acquired, jittered data are best interpolated using CRSI compared to regular or random undersampled data. We also discuss the large-scale one-norm solver involved in CRSI. Finally, we extend CRSI formulation to other geophysical applications and present results on multiple removal and migration-amplitude recovery.