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김광섭,양소안 한국생성문법학회 2024 생성문법연구 Vol.34 No.2
This paper explores various issues related to the distribution of PPs in Chinese relative clauses. It is commonly understood that prepositions cannot be deleted as they carry their own specific semantic content. However, there are contexts in which prepositions must be elided. Chinese relative clauses are a case in point. In Chinese, prepositions are divided into two types, depending on whether or not they must be elided in relative clauses. The first type must be elided when it is stranded, whereas the second type must not be elided and is supported by a resumptive pronoun. This paper explores the possibility of accounting for the distribution of PPs in Chinese relative clauses by a repair strategy. More precisely, it is claimed that stranded prepositions are repaired either via ellipsis or insertion as a last resort, and the repair operation is governed by the Principle of Recoverability.
A Dependent Marking Approach to the Information Marking of Shilluk
김광섭 서울대학교 언어교육원 2022 語學硏究 Vol.58 No.3
This paper aims to apply the dependent marking theory to shed light on the distribution of the information markers in Shilluk, which can be divided into two types: marked and unmarked. Focus belongs to the marked type, while Topic belongs to the unmarked type. This paper claims that information marking in Shilluk consists of two steps, with the marked type assigned in Step 1 and the unmarked type in Step 2. In Step 1, if an NP is c-commanded by another NP in a domain, it is assigned the feature [FOC]. In Step 2, if there is a remaining NP that has received no marking in Step 1, it is assigned [TOP]. Topic carries no marking, which gives rise to the pattern “no marking before the verb.”
김광섭,Kiwon Lee 대한원격탐사학회 2022 大韓遠隔探査學會誌 Vol.38 No.1
The importance of the classical theme of how the Top-of-Atmosphere (TOA) and Top-of-Canopy (TOC) reflectance of high-resolution satellite images match the actual atmospheric reflectance and surface reflectance has been emphasized. Based on the Radiometric Calibration Network (RadCalNet) BTCN and BSCN data, this study compared the accuracy of TOA and TOC reflectance products of the currently available optical satellites, including KOMPSAT-3, WorldView-2, and Pléiades-1A image sets calculated using the absolute atmospheric correction function of the Orfeo Toolbox (OTB) tool. The comparison experiment used data in 2018 and 2019, and the Landsat-8 image sets from the same period were applied together. The experiment results showed that the product of TOA and TOC reflectance obtained from the three sets of images were highly consistent with RadCalNet data. It implies that any imagery may be applied when high-resolution reflectance products are required for a certain application. Meanwhile, the processed results of the OTB tool and those by the Apparent Reflection method of another tool for WorldView-2 images were nearly identical. However, in some cases, the reflectance products of Landsat-8 images provided by USGS sometimes showed relatively low consistency than those computed by the OTB tool, with the reference of RadCalNet BTCN and BSCN data. Continuous experiments on active vegetation areas in addition to the RadCalNet sites are necessary to obtain generalized results.
A remark on $p$-class numbers in cyclotomic $\mathbb{Z}_p$-extensions
김광섭 호남수학회 2022 호남수학학술지 Vol.44 No.1
Let $\mathbb{B}_{p,n}$ be the $n$-th layer of the cyclotomic $\mathbb{Z}_p$-extension over the rationals. In this note, we will prove that the $p$-class group of $\mathbb{B}_{p,n}$ is trivial for all $n$ by elementary method.