Morphology of RuO2(110) oxide films on Ru(0001) studied by scanning tunneling microscopy (2009)
Kim, Sang-Hoon, Wintterlin, Joost
Using scanning tunneling microscopy we have investigated the morphology of RuO2(110) films grown on Ru(0001). The films were prepared by dosing 2×105 to 1×106 L of O2 at temperatures between 650...
A mistake of the effective interaction between D-dimensional Bose atoms [arXiv:cond-mat/0503523] that was published by Physical Review B in 2006 is corrected.
Kim, Sang-Hoon, Das, Mukunda P.
Divergence exponents of the first-order quantum correction of a two-dimensional hard-sphere Bose atoms are obtained by an effective field theory method. The first-order correction to the ground-state...
Features between Query and Telop (2008)
Takahiro Urano, Kazuhiko Yamaashi, Kohei Shimizu, Takayuki Fujiwara, Yuji Tanaka, Takayuki Fujiwara, ...
FlexRPC: A Flexible Remote Procedure Call Facility for Modern Cluster File Systems (2008)
Sang-hoon Kim, Youngjae Lee, Jin-soo Kim
Abstract — The concept of Remote Procedure Call (RPC) was proposed more than 30 years ago. Although various RPC systems have been studied and implemented, the existing RPC systems lack many crucial...
Object Detection using Multiple Color Normalization and Moving Color Information (2008)
This paper suggests effective object detection system for moving objects with specified color and motion information. The proposed detection system includes the object extraction and definition...
Design of a Fuzzy-Tuning High Gain Observer for Speed-Sensorless Control of an AC Servo Motor (2008)
This paper deals with speed-sensorless control of an AC servo motor using Fuzzy-Tuning High Gain Observer(FTHGO). Resolver or encoder can be used to measure a rotor speed, but it has a limit to...
Design of Neuro-Fuzzy Controller for Speed Control Applied to DC Servo Motor (2008)
Kim, Sang-Hoon, Kang, Young-Ho, Ko, Bong-Woon, Kim, Lark-Kyo
In this study, a neuro-fuzzy controller which has the characteristic of fuzzy control and artificial neural network is designed. A fuzzy rule to be applied is automatically selected by the allocated...
Real-Time Control of DC Sevo Motor with Variable Load Using PID-Learning Controller (2008)
Kim, Sang-Hoon, Chung, In-Suk, Kang, Young-Ho, Nam, Moon-Hyon, Kim, Lark-Kyo
This paper deals with speed control of DC servo motor using a PID controller with a gain tuning based on a Back-Propagation(BP) Learning Algorithm. Conventionally a PID controller has been used in...
Robust extraction of 3D facial features and global motion information from 2D image sequence for the MPEG-4 SNHC face model encoding is described. The facial regions are detected from image sequence...
A System-on-a-Chip Design for Digital TV (2008)
Rhee, Seung-Hyeon, Lee, Hun-Cheol, Kim, Sang-Hoon, Choi, Byung-Tae, Lee, Seok-Soo, Choi, Seung-Jong
This paper presents a system-on-a-chip (SOC) design for digital TV. The single LSI incorporates almost all essential parts such as CPU, ISO/IEC 11172/13818 system/audio/video decoders, a video...
Structure-related Characteristics of SiGe HBT and 2.4 GHz Down-conversion Mixer (2008)
Lee, Sang-Heung, Kim, Sang-Hoon, Lee, Ja-Yol, Bae, Hyun-Cheol, Lee, Seung-Yun, Kang, Jin-Yeong, ...
In this paper, the effect of base and collector structures on DC, small signal characteristics of SiGe HBTs fabricated by RPCVD was investigated. The structure of SiGe HBTs was designed into four...
Stability of the homogeneous Bose-Einstein condensate at large gas parameter (2008)
Rakhimov, Abdulla, Kim, Chul Koo, Kim, Sang-Hoon, Yee, Jae Hyung
The properties of the uniform Bose gas is studied within the optimized variational perturbation theory (Gaussian approximation) in a self-consistent way. It is shown that the atomic BEC with a...
Role of network structure and network effects in diffusion of innovations (2008)
Choi, Hanool, Kim, Sang-Hoon, Lee, Jeho
Why does diffusion of innovation sometimes propagate throughout the whole population, and why at other times does it halt in its interim process? The current paper provides a potential answer to this...
Higher order terms in the condensate fraction of a homogeneous and dilute Bose gas (2007)
The condensate fraction of a homogeneous and dilute Bose gas is expanded as a power series of $\sqrt{n a^3}$ as $N_0/N = 1 -c_1 (n a^3)^{1/2} -c_2 (n a^3) - c_3 (n a^3)^{3/2}\hdots.$ The coefficient...
Discontinuity in the specific heat of a weakly interacting Bose gas (2007)
We produce the discontinuity in the specific heat of a homogeneous, dilute, and weakly interacting Bose gas in a short-wavelength range with a simple statistical method. The magnitude of the...
Transition temperature of the homogeneous and dilute Bose gas in D-dimensions (2007)
The phase transition temperature of the homogeneous and dilute Bose gas in D-dimensions ($2 \le D \le 3$) is calculated by a mean field-based statistical method. The shift of the phase transition...
A practical method to estimate the condensate fraction of interacting and trapped Bose atoms (2007)
We suggest a practical way to estimate the condensate fraction of an interacting dilute Bose gas confined by an external harmonic potential as a function of temperature and scattering length. It...
A physical application of $g$-function (2006)
We investigated an integral representation of a complex function which was obtained from the molecular beam magnetic resonance, and named it as `$g$- function' because it was connected with Gamma...
With the integral representation of Bose functions, the Bose-Einstein condensation of non-interacting bosons in a three-dimensional harmonic trap was studied. The relation between the particle number...
We suggested a method to estimate the quantum depletion of interacting Bose particles confined by a three dimensional harmonic trap.
Ground state energy density of a dilute Bose gas in the canonical transformation (2006)
Kim, Sang-Hoon, Kim, Chul Koo, Das, Mukunda P.
A ground state energy density of an interacting dilute Bose gas system is studied in the canonical transformation scheme. It is shown that the transformation scheme enables us to calculate a higher...
A wideband fully integrated SiGe BiCMOS medium power amplifier (2005)
Bae, Hyun-Cheol, Kim, Sang-Hoon, Song, Young-Joo, Lee, Sang-Heung, Lee, Ja-Yol, Kang, Jin-Young
In this paper, a wideband 3.0GHz–5.5GHz Medium Power Amplifier has been designed and fabricated using 0.8um SiGe BiCMOS process technology. Passive elements such as parallel-branch spiral inductor,...
Condensate wave function of neutral Bose atoms in power-law traps (2005)
Kim, Sang-Hoon, Kim, Chang Sub
The macroscopic quantum states of a condensed neutral Bose gas in one-dimensional power-law traps are obtained by solving the Gross-Pitaevskii equation numerically. A suitable candidate for a trial...
Fractal dimensions of a green broccoli and a white cauliflower (2004)
The fractal structures of a green broccoli and a white cauliflower are investigated by box-counting method of their cross-sections. The capacity dimensions of the cross-sections are $1.78 \pm 0.02$...
Fractal structure of a white cauliflower (2004)
The fractal structure of a white cauliflower is investigated by box-counting method of its cross-section. The capacity dimension of the cross-section is $1.88 \pm 0.02$ independent of directions....
Mheen, Bongki, Park, Chan-Woo, Kim, Sang-Hoon, Kang, Jin-Yeong, Hong, Songcheol
In this paper, an economic SiGe HBT (heterojunction bipolar transistor) process using reduced pressure chemical vapor deposition (RPCVD) process of high throughput and the cheap localized oxidation...
Condensate of charged Bose disks with numerous holes in a uniform magnetic field (2003)
A stack of disks with numerous holes composed of a non-interacting charged Bose gas is modeled as a low dimensional disk. The Bose condensation of the net-like disk system in a uniform magnetic field...
Condensate of a charged boson fluid at non-integer dimensions (2002)
Kim, Sang-Hoon, Kim, Chul Koo, Nahm, Kyun
Condensate of a charged boson fluid at non-integer dimensions between 2 and 3 is studied. Interaction between particles is assumed to be Coulombic, and Bogoliubov approximation is applied for a weak...
Entrepreneurship in Japan and Silicon Valley: a comparative study (2002)
Suzuki, Kan-ichiro, Kim, Sang-Hoon, Bae, Zong-Tae
Entrepreneurial activities of a region reflect its business climate and habitat for innovation. This is particularly evident in a comparison of firms in Japan and Silicon Valley as entrepreneurial...
Condensate of low dimensional charged Bose disks in a uniform magnetic field (2001)
Kim, Sang-Hoon, Pfeifer, Peter
The Bose condensation of a stack of low dimensional disks which is composed of a noninteracting charged Bose gas in a uniform magnetic field is studied. A statistical approach with density of states...
Kim, Sang-Hoon, Lee, Jung-Ju, Kwon, Dong-Soo
The recently developed transmission-type extrinsic Fabry-Pérot interferometric (TEFPI) optical fiber sensor can simply and effectively compensate for the difficult distinction of the measured...
Bose-Einstein condensation in a two-dimensional trap (2000)
Kim, Sang-Hoon, Won, Changyeon, Oh, Sung Dahm, Jhe, Wonho
The theory of Bose-Einstein condensation in a two-dimensional(2D) harmonic trap is developed from 2D Gross-Pitaevskii equation. The 2D interaction strength is obtained from a 2D collision theory. We...
Thesis (Ph.D.)--Stanford University, 2000.
Ideal Bose gas in fractal dimensions and superfluid $^4$He in porous media (1999)
Kim, Sang-Hoon, Kim, Chul Koo, Nahm, Kyun
Physical properties of ideal Bose gas with the fractal dimensionality between D=2 and D=3 are theoretically investigated. Calculation shows that the characteristic features of the specific heat and...
Maximum thickness of a two-dimensional trapped Bose system (1999)
The trapped Bose system can be regarded as two-dimensional if the thermal fluctuation energy is less than the lowest energy in the perpendicular direction. Under this assumption, we derive an...
Kim, Sang-Hoon, Won, Changyeon, Oh, Sung Dahm, Jhe, Wonho
We derive the Gross-Pitaevskii equation in two-dimension from the first principles of two-dimensional scattering theory. Numerical calculation of the condensate wave function shows that atoms in a...
Kim, Sang-Hoon, Noh, Hyun Sik, Kim, Dae Kwan, Kim, Chul Koo, Nahm, Kyun
A dilute Bose gas system is studied using the functional Schr\"{o}dinger picture theory. The ground state properties are obtained by solving the infinite dimensional Schr\"{o}dinger equation...
Typescript.
Regulated Exopolysaccharide Production in Myxococcus xanthus
Kim, Sang-Hoon, Ramaswamy, Srinivas, Downard, John
Myxococcus xanthus fibrils are cell surface-associated structures composed of roughly equal amounts of polysaccharide and protein. The level of M. xanthus polysaccharide production under different...
Blackwood, Christopher B., Marsh, Terry, Kim, Sang-Hoon, Paul, Eldor A.
Terminal restriction fragment length polymorphism (T-RFLP) is a culture-independent method of obtaining a genetic fingerprint of the composition of a microbial community. Comparisons of the utility...
Regulated Exopolysaccharide Production in Myxococcus xanthus
Kim, Sang-Hoon, Ramaswamy, Srinivas, Downard, John
Myxococcus xanthus fibrils are cell surface-associated structures composed of roughly equal amounts of polysaccharide and protein. The level of M. xanthus polysaccharide production under different...
Blackwood, Christopher B., Marsh, Terry, Kim, Sang-Hoon, Paul, Eldor A.
Terminal restriction fragment length polymorphism (T-RFLP) is a culture-independent method of obtaining a genetic fingerprint of the composition of a microbial community. Comparisons of the utility...
Submitted to the Graudate School of Business.
Kim, Sang-Hoon, Feist, William R
The net benefits resulting from credit policy decisions can be evaluated based on either the opportunity cost approach or the net present value (NPV) approach. It is known that the two approaches are...
Kim, Sang-Hoon, Srinivasan, V. "Seenu"
This paper presents a method to forecast the sales path of an improved version of a high technology product defined in terms of its price path and multiattribute product specification. The approach...
Kim, Sang-Hoon, Kim, Doh-Hyung, Lavender, Paul, Seo, Ji-Hee, Kim, Yun-Seop, Park, Jae-Suk, ...
Increased expression of a number of proinflammatory genes, including IL-8, is associated with inflammatory conditions such as asthma. Glucocorticoid receptor (GR)β, one of the GR isoforms, has been...
Song, Joon Young, Chun, Byung Chul, Kim, Soon Duck, Baek, Luck Ju, Kim, Sang-Hoon, Sohn, Jang Wook, ...
We conducted an epidemiologic study to understand temporal and spatial patterns of hemorrhagic fever with renal syndrome (HFRS) in the Republic of Korea (ROK). We estimated the incidence among...
Kim, Tae-Bum, Kim, Yoon-Keun, Chang, Yoon-Seok, Kim, Sang-Hoon, Hong, Sung-Chul, Jee, Young-Koo, ...
It has been demonstrated that spider mites such as the two-spotted spider mite (Tetranychus urticae) are important allergens for fruit farmers. A total of 2,467 adults (795 metropolitan urban, 788...