산란계 영양에 있어서 미량 광물질의 역할

Rapp Christof J. 대한양계협회 2003 월간 양계 Vol.35 No.5

Displacement field estimation for a two-dimensional structure using fiber Bragg grating sensors

Rapp, Stephan,Kang, Lae-Hyong,Han, Jae-Hung,Mueller, Uwe C,Baier, Horst Institute of Physics Publishing 2009 Smart materials & structures Vol.18 No.2

<P>The structure shape itself is of great interest for many aerospace applications. For example, the stability of the surface shape of large, high precision or space reflectors is essential for the communication performance. The knowledge of static and dynamic displacements of these structures would provide the possibility to enhance their performance by appropriate countermeasures. During operation, however, the direct measurement of displacements of the whole structure is often difficult. This study investigates whole displacement field estimation using strain measurement and a displacement–strain-transformation approach. The use of fiber Bragg gratings (FBGs) as strain sensors for this application offers the possible implementation of an integrated sensor network including many measurement points within only a few optical fibers. This paper discusses many issues related to the displacement field estimation of a dynamically excited plate using a transformation matrix based on a modal approach. In order to reduce systematic displacement estimation errors due to aliasing, a parametric study was performed and the sensor locations were optimized. Experimental validation was also conducted using a cantilever plate equipped with 16 FBG sensors in an optimized configuration. The estimated displacements showed good agreements with those measured directly from laser displacement sensors. </P>

Language Acquisition as the Detection, Memorization, and Reproduction of Statistical Regularities in Perceived Language

( Reinhard Rapp ) 서울대학교 인지과학연구소 2011 Journal of Cognitive Science Vol.12 No.3

In this article we investigate the hypothesis that language learning is based on the detection and memorization of particular statistical regularities as observed in perceived language, and that during language production these regularities are reproduced. We give an overview of those regularities where we have been able to exemplify this behaviour. Our finding is that not only statistics of order zero (frequencies) and one (co-occurrences) are of importance, but also statistics of higher order. For several types of statistics we present simulation results and conduct quantitative evaluations by comparing them to experimental data as obtained from test subjects.

SYMPOSIA / SO8-5 : ROLE OF CELL CYCLE PROGRESSION AND APOPTOSIS - SUPPRESSION IN RAF - INDUCED TUMORGENESIS

(U . R . Rapp),(J . Troppmair),(L . Fedorov),(E . Kerkhoff) 한국생화학분자생물학회 (구 한국생화학회) 1999 6th IUBMB SEOUL CONFERENCE Vol.- No.-

Molybdenum and AND Zirconium Neutron Total Cross Section Measurements in the Energy Range 0.5 TO 20 MeV

M. J. Rapp,Y. Danon,F. J. Saglime,R. Bahran,R. C. Block,G. Leinweber,D. P. Barry,J. G. Hoole 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.23

Neutron transmission measurements were made on natural molybdenum and zirconium samples using the time of flight method at the Rensselaer Polytechnic Institute Gaerttner Linac Laboratory. These measurements utilize a 100 meter flight path, fast detector response and electronics and a narrow neutron pulse width to provide high accuracy data. Neutron total cross sections have been determined in the energy range of 0.5 to 20 MeV and are compared to commonly used nuclear data evaluations. Molybdenum shows good agreement with the evaluations, while zirconium shows improvement is required with the most recent evaluations in the range of 0.5 to 15 MeV.

PRIVATE HEALTH DATA DISCLOSURE – A REPEATED SCENARIO DESIGN TO INVESTIGATE THE WILLINGNESS TO PROVIDE DATA ACCESS TO INSURANCE COMPANIES

Antje Niemann,Verena Rapp 글로벌지식마케팅경영학회 2016 Global Marketing Conference Vol.2016 No.7

While companies in the field of e-commerce have long engaged in the collection of large amounts of customer data and consider them one of their most important assets, insurance companies have only recently started to collect customer data on a large scale (Smith, Dinev & Xu, 2011). Recently, insurance companies have developed tariffs which adjust premiums based on collected data about the insurant’s behavior (e.g. steps/day, visits to the gym etc.). Benefits like fitness courses or lower insurance rates are provided to encourage a healthy lifestyle and attract healthy customers. However, this model can only succeed, if customers are willing to disclose data. As many customers fear an intrusion of their privacy by companies and consider personal health data to be especially sensitive, this disclosure cannot be taken for granted (Anderson & Agarwal, 2011). The paper evaluates two main influencing factors for the willingness to disclose private health data (benefit offered to customers and sensitivity of data requested). It analyzes their effect by conducting an online scenario-based quasiexperiment with 408 participants. Participants are presented with six hypothetical offers by a health insurance (financial and non-financial benefits; low, medium, high data sensitivity) and indicate how they would respond to these offers in terms of data disclosure. We control for individual heterogeneity by including privacy concerns and trust as between-subject factors (Malhotra, Kim, & Agarwal, 2004). Our results indicate that the willingness to disclose health data can be increased by financial rewards at low and medium sensitivity levels. If information is highly sensitive, the willingness to provide data decreases and cannot be compensated by a tariff reduction. Health care providers should therefore carefully consider which data points they choose as mandatory to participate in personalized insurance tariffs, as they could easily scare off potential customers. In our study non-financial benefits (prevention courses) are not able to increase the willingness to disclose data as much as financial benefits. This could be due to a general preference for financial rewards or to the unknown quality of the courses offered.

Parallel Trade in Pharmaceuticals : The Impact on Welfare and Innovation

Rozek, Richaed P.,Rapp, Richard T. 세종대학교 국제경제연구소 1992 Journal of Economic Integration Vol.7 No.2

Difference among nations in political, social, economic, legal and regulatory regimes cause differences in prices across countries, which, in turn, create opportunities for arbitrage or 'parallel trade.' As with any form of arbitrage, one effect of parallel trade is to diminish the price differentials that gave rise to the arbitrage opportunity. At least four market situations exist in which parallel trade may reduce welfare and weaken the intellectual property rights of innovators. In these settings. a policy that restricts either parallel trade or incentives for parallel trade yields net economic benefit to society. This paper summarizes these situations.

Influence of the Dimensionality and Organic Cation on Crystal and Electronic Structure of Organometallic Halide Perovskites

Gebhardt, Julian,Kim, Youngkuk,Rappe, Andrew M. American Chemical Society 2017 JOURNAL OF PHYSICAL CHEMISTRY C - Vol.121 No.12

<P>Layered perovskites open a plethora of possibilities for tuning organometallic halide perovskite (OMHP) properties via the incorporation of larger organic cations. Promising applications of this increased structural freedom include enhanced chemical stability and tunable exciton binding. Owing to the larger cation, crystal and electronic structures vary with layer stacking, having layered bulk and a monolayer as limiting cases. Using ab initio calculations, here we study the atomic and electronic structures of such a layered material, (C6H5C2H4NH3)(2)PbI4, which has recently attracted attention as a promising solar cell material. The reduction of layer thickness between the bulk and a monolayer is investigated and compared to that of the benchmark OMHP, (CH3NH3)PbI3, showing that the bulkier C6H5C2H4NH3 cations largely preserve the two-dimensional nature of the electronic structure in the layered bulk OMHP.</P>

Phylogenetic, morphological, and chemotaxonomic incongruence in the North American endemic genus Echinacea

Flagel, L. E.,Rapp, R. A.,Grover, C. E.,Widrlechner, M. P.,Hawkins, J.,Grafenberg, J. L.,Alvarez, I.,Chung, G. Y.,Wendel, J. F. Wiley (John WileySons) 2008 American journal of botany Vol.95 No.6

<P>The study of recently formed species is important because it can help us to better understand organismal divergence and the speciation process. However, these species often present difficult challenges in the field of molecular phylogenetics because the processes that drive molecular divergence can lag behind phenotypic divergence. In the current study we show that species of the recently diverged North American endemic genus of purple coneflower, Echinacea, have low levels of molecular divergence. Data from three nuclear loci and two plastid loci provide neither resolved topologies nor congruent hypotheses about species-level relationships. This lack of phylogenetic resolution is likely due to the combined effects of incomplete lineage sorting, hybridization, and backcrossing following secondary contact. The poor resolution provided by molecular markers contrasts previous studies that found well-resolved and taxonomically supported relationships from metabolic and morphological data. These results suggest that phenotypic canalization, resulting in identifiable morphological species, has occurred rapidly within Echinacea. Conversely, molecular signals have been distorted by gene flow and incomplete lineage sorting. Here we explore the impact of natural history on the genetic organization and phylogenetic relationships of Echinacea.</P>

Modelling Resonance Dependent Angular Distribution via DBRC in Monte Carlo Codes

R. Dagan,B. Becker,Y. Danon,M. Rapp,G. Lohnert 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.23

The development of a new energy dependent double differential resonance scattering kernel by Rothenstein & Dagan, Annals of Nuclear Energy (1998) was shown to have a significant impact on core calculations as far as their criticality, Doppler Effect and the nuclide inventory is concerned. Thereafter, it was of great interest to experimentally validate this scattering kernel in addition to analytically proving its consistency with the integral Doppler broadened cross section, which was achieved by integrating the new kernel over all angles and all scattered energies. This study deals with the unique experiment suggested by Y. Danon at the Gaerttner Linear Accelerator Laboratory at Rensselaer Polytechnic Institute (RPI). The main advantage of this facility is the ability to move the neutron production source off axis relative to the detector beam line. It was, therefore, possible to position the sample, from which the neutron were scattered, on the same axis as the detector. In this way it was possible to directly measure the angular distribution of scattered neutron from heavy nuclides with pronounced resonances. In this study the previous results obtained for ^(238)U were extended to ^(232)Th. Improvements were made to the new resonance scattering kernel by development of a stochastic formalism known as DBRC (Doppler Broadened Rejection Correction) which was implemented by Becker et al. in several Monte Carlo codes. Based on the good agreement between this DBRC model and the measurements presented in this paper, it was shown that the standard asymptotic back angle scattering used previously in Monte Carlo codes differs by almost 80% for highly scattering resonances. Moreover, the scattering angle measurements and the ability to simulate it accurately by means of stochastic methods emphasized the deficiencies of the current methods which use only transmission and capture measurements.