We examine a single machine scheduling problem with step-improving jobs in which job processing times decrease step-wisely over time according to their starting times. The objective is to minimize total completion time which is defined as the sum of completion times of jobs. The total completion time is frequently considered as an objective because it is highly related to the total time spent by jobs in the system as well as work-in-progress. Many applications of this problem can be observed in the real world such as data gathering networks, system upgrades or technological shock, and production lines operated with part-time workers in each shift. Our goal is to develop a scheduling algorithm that can provide an optimal solution. For this, we present an efficient branch and bound algorithm with an assignment-based node design and tight lower bounds that can prune branch and bound nodes at early stages and accordingly reduce the computation time. In numerical experiments well designed to consider various scenarios, it is shown that the proposed algorithm outperforms the existing method and can solve practical problems within reasonable computation time.

In this study, we collected and analyzed the current status of licenses for the limited fishery business and divided the problems related to licenses for the limited fishery business into partial damage compensation and cancellation compensation areas. In the case of partial damage compensation areas due to existing public water use projects, it is suggested that the issuance of licenses for limited fishery businesses should be reconsidered. In the case of cancellation compensation areas, it is recommended that the disposition of communal fishery businesses that do not require capital investment should be the principle. If capital such as facilities are invested, compensation should be made by Article 52 of the Enforcement Decree of the Land Compensation Act if the licenses for limited fishery business are closed due to other development projects. In addition, we proposed an improvement plan to establish a rational management system for licenses for limited fishery businesses. In addition to these improvement measures, we hope that further investigation and research on licenses for limited fishery business, which have been insufficient so far, will be conducted to promote the comprehensive use of fisheries resources and waters and the sustainable development of fisheries that are the objectives of the Fisheries Act, and contribute to the improvement of the quality of life of the people and the balanced development of the national economy.

Metal-organic frameworks (MOFs) are of significant interest because of their high porosity, which facilitates their utilization in gas storage and catalysis. To enhance their current properties in these applications, it is necessary to elucidate the interactions between molecules in a confined environment that differ from those in bulk conditions. Herein, we study the confined molecular interaction by investigating the solvent-dependent photophysical properties of two different-sized molecules inside MOF-5. Ruthenium tris-bipyridine (Rubpy) and coumarin 153 (C153) are encapsulated in MOF-5. Rubpy with MOF-5 (Rubpy@MOF) is prepared by building MOF-5 around it, resulting in limited space for solvent molecules in the pores. The smaller C153 is encapsulated in the preformed MOF-5 (C153@MOF) by simply soaking the MOF in a concentrated C153 solution. C153@MOF permits more space for solvent molecules in the pore. Their characteristic absorption and emission spectra are examined to elucidate the confined molecular interactions. Rubpy@MOF and C153@MOF exhibit different spectral shifts compared to the guest molecules under bulk conditions. This discrepancy is attributed to the different micro-environments inside the pores, derived from confined host-guest interactions in the interplay of solvent molecules.

Consumers want to express their original unique personality, and even are willing to endure high expenses in order to do this. One noticeable strategy in the market, used by companies to suit for this consumer sentiment, is that of employing limited edition marketing and limited free gifts. This study investigated the effects of limited free gifts on consumer response. Specifically, the present study examined how the need for uniqueness moderated the effects of limited free gifts on brand commitment and attitudes. The online survey method was used to gather the data and a total of 224 data were used to analyze data. The results of the research were as follows. The findings revealed four dimensions of limited free gifts: scarcity/specialty, not for sale, complementarity, and risk. Complementarity positively affected brand commitment, while all four dimensions of limited free gifts positively influenced brand attitude. In addition, the need for uniqueness was proven to be the strongest variable which positively influenced brand commitment and attitudes. Also, when the need for uniqueness was applied as a moderating variable, depending on the levels of the need for uniqueness, the effects of riskiness on the consumer’s response were shown to be different. The findings of this study infer various academic and practical applications.

수치한정발명은 공지발명에‘수치’라는 구성 이 개시되어 있지 않거나, 그 구성에 차이가 있음에 도 대부분 그 수치범위에 임계적 의의가 없다거나, 반복 실험에 의해 쉽게 도출할 수 있는 단순한 수치 한정에 불과하다는 이유로 특허성을 인정받지 못 한다. 그런데 최근 수정한정에 따른 임계적 의의가 없음에도 진보성이 인정된 대법원 판결들이 나타 나고 있고, 일본에서도 지적재산고등재판소가 생긴 이후 수치한정발명에서 진보성을 인정하는 사례들 이 많이 생겨나고 있다. 우리나라의 경우는 대부분 기술적 과제 내지 효 과의 이질성으로 인해 특허성이 인정되고 있지만, 일본의 경우는 임계적 의의로 인해 특허성이 인정된 사례도 있고, 또한, 효과의 이질성 내지 임계적 의의 가 없더라도 수치한정의 기술적 의의만으로 인해 특허성이 인정된 사례도 찾아볼 수 있다. 수치한정 을구성의곤란성관점에서바라볼때수치한정자체 에 기술적 의의가 있는 경우에는 해당 수치한정을 용이하게 도출할 수 있다고 볼 수 없기 때문에 우리 나라에서도 일본처럼 수치한정 자체에 기술적 의의 를 갖는 경우에도 특허성을 인정할 수 있도록 새로 운 판단기준을 마련해야 할 것이다 한편 수치한정을 수반하는 파라미터 발명의 경우 넓은 의미에서의 수치한정발명에 포함된다. 하지만 우리나라에서는 파라미터 발명에 관한 판 단기준을 수치한정발명의 판단기준과 별도로 제시 하고 있기 때문에 실무적으로 수치한정발명과 파 라미터 발명을 별도로 구분해서 특허성 여부를 판 단하고 있다. 그런데 이러한 이원론적인 접근 방법 은 특허성 판단 이전에 청구항에 기재된 발명이 파 라미터 발명인지 수치한정발명인지를 구분해야 하 기 때문에 심사관이나 심판관에게 부담이 될 수 있 고, 잘못된 판단을 초래할 가능성도 있다. 또한, 수 치를 포함한 발명이 수치를 한정하고 있는 대상(관 용적 파라미터인지 특수한 파라미터인지)에 따라서 그 판단방법이 달라진다는 것은 타당하다고 말하 기 어렵기 때문에 수치를 포함한 모든 발명에 공통 적으로 적용될 수 있는 통합적인 판단기준이 필요 하다고 본다. 이글에서제시된통합적인판단기준은현재의 판단기준을 그대로 따르면서도 수치한정발명이든 파라미터 발명이든 관계없이 하나의 판단기준만으 로 특허성 여부를 판단할 수 있도록 한 것이어서, 수치한정을 포함한 모든 발명의 특허성 여부를 좀 더 일관적이고 효율적으로 판단할 수 있게 될 것으 로 기대된다.

Priority rules or sequencing heuristics conventionally used to determine resource allocation is to maximize the earned value on time and cost. This study provides a effective strategy-oriented approach for the program resource management problem with limi

the present study was carried out to develop a completely defined culture system and determine if high NaCl concentrations in defined (PVA added) or semi-defined (BSA added) medium is toxic to bovine embryos. Oocytes from slaughterhouse ovaries were matured and fertilized in vitro. After 30 h of insemination, only 2-cell stage embryos were selected and cultured for this experiment. The culture media used were as follows : TLP(114 mM of NaCl) + BSA (3 mg/ml), TLP + PVA (1 mg/ml), mTLP(96 mM of NaCl) + BSA, mTLP + PVA. Six to ten embryos were placed into a 301 drop of each medium and the embryos were examined at 10 day post-insemination without medium renewal. The experiment was replicated 4 times. All data were analyzed by chi-square. There were no significant differences among TLP-BSA, mTLP-BSA and mTLP-PVA in blastocyst development (21.6, 17.2 and 20.2%), respectively. Also, no differences were obtained in hatching rates (11.7, 9.9 and 12.2%), respecitively. However, there were significant differences between TLP-PVA (1.7% and 0.6%) and other group in blastocyst formation and hatching rates, respectively (p<0.01). Development of in vitro produced embryos cultured in BSA containing medium was not affected by high NaCl concentration, but in the completely defined medium, embryonic development was highly affected by NaCl. This study shows that reduced NaCl concentration in completely defined medium is beneficial for development of bovine pre-implantation embryos in vitro.

적정 배양액의 선정, ITS의 첨가와 BSA의 농도조절 및 NaCl 농도의 조절을 통해 소 수정란의 무혈청, 체세포배제 배양체계를 확립하기 위하여 수행한 실험에서 다음과 같은 결론을 얻었다. 1. 배양액으로 CRlaa, TALP 및 SOF를 사용하여 발육률을 검토한 결과, 발육률의 유의적인 차이는 나타나지 않았다. 2. 배양액내의 고분자물질원으로 BSA, FBS 및 PVA를 첨가하여 사용한 결과 BSA 및 FBS 첨가군이 PVA 첨가군보다 유의적으로 높

This paper assesses the last two-decade studies of null arguments in East Asian languages. Unlike the predecessors, these studies have concentrated lopsidedly on the distribution of null arguments in VP/TP ellipsis or anaphora contexts, thus hampering the proper identification of null arguments in these languages. Grounded on the observation that null arguments cannot be used as indefinites in radically pro-drop languages (Holmberg 2016), we go on to note that in non-ellipsis or non-anaphora contexts, null arguments in East Asian languages are either unique weak or anaphoric strong definites. Particularly, the latter use of null arguments sheds new lights on accounting for the long-standing puzzles such as Huang’s (1984) paradigm in Mandarin Chinese and Abe’s (2009, 2014) paradigm in Japanese, on top of the sundry distributions of null arguments in Korean. We suggest that null arguments in VP/TP ellipsis or anaphora contexts in East Asian languages can receive a proper analysis based on their syntactic identity in non-ellipsis or non-anaphora contexts.

Chung Moo-Joo. 1997. Functions of the Articles Related to Definiteness. Studies in Modern Grammatical Theories 10: 47-62. In this paper, it has been argued that the articles in English possess both a referential and an expressive function. So far, the studies of definiteness have been confined to a referential view of definiteness. All these approaches focus exclusively on the articles` contribution to reference, that is, on the way the articles help NPs establish the existence of and individuate entities in the universe of discourse. In addition to their referential function, however, the articles also possess an expressive function. In particular, the definite article can be used expressively as a marker of prominence, and the indefinite article can be used expressively as a means of de-emphasizing a referent`s individual identity. Evidence for these functions was drawn principally from the fact that different articles can often be used to describe the same objective situation. In particular, we examined discourses in which the could be used felicitously (for expressive reasons) even though α was referentially more appropriate (a basis for unique identifiability was lacking). We also examined discourses in which α could be used felicitously (for expressive reasons) even though the was referentially more appropriate.