A ball-shape alumina arc-tube for low-wattage lamp was developed by the PIM process. An ultra high purity translucentgrade alumina powder was used. In injection molding process, a hot-runner type mold was developed. The translucent-grade alumina powder was extremely sensitive to contamination so that the injection molding condition and atmosphere control in the furnace should be taken care of with extreme caution. Contamination sources were pinpointed with EPMA. The arc-tube was molded in half and two halves were bonded in the middle by a new bonding technique at room temperature developed in this study.

This paper newly discusses the anaphoric pro-clause construction from Korean in which the relative clause is replaced by the pro-form kulen, and attempts to account for its morphological and syntactic properties under the head-intial hypothesis for Korean. I propose that the copy of the raised relative clause is resumed as pro-form. I then argue that the head-initial approach offers simpler, superior derivations of various examples of this construction including right-dislocated ones than the head-final approach. In particular, the results of the discussions show why the head-final bi-clausal approach fails to deal with right-dislocation facts.

This paper proposes a new case-based approach to some facts observed in complement clauses in Korean. Its core lies in the following hierarchy: lexical/oblique case >> verbal case >> default case. This paper shows that among others, case conversion on the embedded subject in the ECM environment, i.e., from nominative to accusative, follows from the particular conception of nominative as the absence of case valuation advanced by Preminger and his co-workers (2014, 2015) according to which case is not contingent on agreement. This approach also deals with contrasts in ellipsis of complement clauses. In addition, this paper points out that a labeling system proposed by Cecchetto and Donati (2010) does not extend to Korean, and claimed that a moving element does not reproject a label.

This paper attempts to offer a plausible syntactic structure of the complement of the perception verb po- 'see' from Korean and English. The core of the proposals is that the perception verb complement is an incomplete clause, lower than TP and higher than vP, which is syntactically realized as an Event Phrase, and that this EventP contains a Voice Phrase. It is also suggested that the EventP involves an event operator, which is then controlled by the event argument assigned by the matrix perception verb, thereby accounting for the fact that the event time is simultaneous with the perception time. It will be shown that the current proposals can well account for various syntactic and semantic properties of the perception verb complements.

Further to Lee (2008) where Aspect is proposed to be located in VPlayers in Korean, this paper considers a wider range of data from the area of verb copying from Korean to consolidate the proposal. Parallel Chinese examples of the same verb copying construction are also considered to corroborate the current position. From a theoretical perspective, the results obtained surprisingly lead to the underlying head-initial structure in Korean as well. Thus Kaynean (1994) universal Spec-head-complement order hypothesis is supported, and head-parameter is rendered to fall out of the Universal Grammar, as recent Minimalist Program claims.