A5031065399- Plant Water Relations and Carbon Dynamics
- Wind and Air Flow Studies
- Fluid Dynamics and Turbulent Flows
- Meteorological Phenomena and Simulations
- Forest ecology and management
- Tree-ring climate responses
- Plant responses to elevated CO2
- Fire effects on ecosystems
- Urban Heat Island Mitigation
- Aeolian processes and effects
- Adsorption and biosorption for pollutant removal
- Air Quality and Health Impacts
- Cryospheric studies and observations
- Gas Sensing Nanomaterials and Sensors
- Bone Tissue Engineering Materials
- Atmospheric chemistry and aerosols
- Urban Green Space and Health
- Icing and De-icing Technologies
- Soil and Unsaturated Flow
- Noise Effects and Management
- Hydrology and Watershed Management Studies
- Combustion and flame dynamics
- Climate variability and models
- Atmospheric and Environmental Gas Dynamics
- biodegradable polymer synthesis and properties
National Taiwan University
2012-2024
Taipei Medical University Hospital
2023
St. John's University
2007
National Kaohsiung Normal University
2007
Duke University
1995-2006
Tri-Service General Hospital
2005-2006
National Taiwan University Hospital
2005
National Defense Medical Center
2005
National Chung Cheng University
2002
National Taiwan University of Science and Technology
1999-2001
Abstract Above forest canopies, eddy covariance (EC) measurements of mass (CO 2 , H O vapor) and energy exchange, assumed to represent ecosystem fluxes, are commonly made at one point in the roughness sublayer (RSL). A spatial variability experiment, which EC were from six towers within RSL a uniform pine plantation, quantified large dynamic variation fluxes. The coefficient (CV) scalar fluxes decreased with increasing integration time, stabilizing minimum that was independent further...
Ejection and sweep eddy motions in the atmospheric surface layer (ASL) are widely accepted as being responsible for much of land evaporation, sensible heat flux, momentum flux; however, less is known about this type motion within canopy sublayer (CSL) forested systems. The present study analyzed ejection‐sweep properties at canopy‐atmosphere interface a 13 m tall, uniformly aged southern loblolly pine stand 33 unevenly hardwood using velocity scalar (temperature, water vapor, carbon dioxide)...
Ground heat flux may play an important role in surface energy balance. In this study we evaluate the performance of objective hysteresis model (OHM) for estimating ground from net radiation and compare it with linear regression model. The experimental sites include residential roofs (concrete), campus grassland, agricultural peat bog. Our field measurements show that mean partition coefficient to varied 0.47 (concrete roof) 0.079 (agricultural grassland). (lag) factors roof, bog were 0.55,...
A canopy Lagrangian turbulent scalar transport model for predicting fluxes, sources, and sinks within a forested was tested using CO 2 concentration flux measurements. The formulation is based on the localized near‐field theory (LNF) proposed by Raupach [1989a, b]. Using measured mean profile, vertical velocity variance integral timescale profile above canopy, predicted source (or sink) profiles. testing carried out eddy correlation measurements at 9 m in uniform 13 tall Pinus taeda L....
Turbulent velocity, temperature, water vapor concentration, and other scalars were measured at the canopy–atmosphere interface of a 13–14-m-tall uniform pine forest 33-m-tall nonuniform hardwood forest. These measurements used to investigate whether mixing layer (ML) analogy predicts eddy sizes flow characteristics responsible for much turbulent stresses vertical scalar fluxes. For this purpose, wavelet spectra cospectra derived analyzed. It was found that ML well velocity variances integral...
The traditional dissipation method and the new approaches suggested by Albertson et al . [1996] Hsieh to estimate momentum heat fluxes were compared using velocity temperature measurements in atmospheric surface layer. These carried out above two different sites (grass bare soil) over a wide range of stability turbulent intensity conditions. Taylor's hypothesis, flux divergence terms, correction functions which play important roles methods also evaluated. In highly flows, deviations from...
High‐frequency (5 Hz) atmospheric surface layer (ASL) turbulent velocity ( u′ ) and infrared skin temperature perturbations T′ s were measured above a grass‐covered forest clearing analyzed for cloud free conditions. These measurements used to investigate mechanisms responsible the production of large short‐lived caused by rapid excursions in . To quantify effects on cooling, wavelet spectra cospectra u′T′ computed. The power then using Townsend 's [1961, 1976] hypothesis. Townsend's...
Abstract The liquid precipitation method using zinc acetate dihydrate was applied for the synthesis of uniform and spherical ZnO nanoparticles. ultrafine oxid prepared in a water‐ethanol mixture solution. solution containing cation soluble water. surface‐active agent triethanolamine (TEA) ethanol. Then alkali precipitated by adding n‐propylamine. oxide particle morphology found to be highly dependent on salt concentration, ethanol‐water ratio, additive. process can produce white powder 50–90...
To examine the infant health impact of prenatal exposure to power plant emissions, we draw scientific evidence on impacted region downwind a large polluter, coal-fired located border two states and proven be sole contributor violation air quality standards region. Our results show that among all live singleton births occurred during 1990 through 2006, those born mothers living as far 20 30 miles away from (which is also an affluent region) pregnancy are at greater risks low birth weight...
Abstract This paper investigates a new approach for color transfer. Rather than transferring from one image to another globally, we propose system with stroke‐based user interface provide direct indication mechanism. We further present multiple local transfer method. Through our the can easily enhance defect (source) photo by referring some other good quality (target) images simply drawing strokes. Then, will perform automatically. The consists of two major steps. First, draws strokes on...