• International Journal of Industrial Entomology and Biomaterials
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• v.13 no.2
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• pp.85-95
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• 2006

Seveval Chinese and Japanese varieties with good characters were used in the breeding. After 5 years (15 generations), a pair of robust and high quality silkworm variety with NPV resistance was bred by means of a combination of crossing and pedigree selection complemented by the selection of NPV resistance. The variety was identified jointly nationwide in 2003 and 2004, and appraised by National Mulberry and Silkworm Appraising Committee. Results are as follows: its cocooning rate is over 93%, shell rate 23-25%, filament length 1200-1300 meters, reelability 75-88%, Length of non-broken cocoon filament 900-1100 meters, raw silk rate 17-19%, neatness 95-97 points, and cocoon crop, cocoon shell weight and raw silk weight per 10000 larvae is higher than those of the control variety by 7-10%, 14-19% and 14-18%, respectively. The variety is not only robust, resistant to high temperature and NPV, easy to rear, uniform in hatching, molting and maturing, but also lays more eggs, and its fecundity is high. It is suitable to rear in the Yangtze River Basin, the Yellow River basin and the Pearl River basin of China.

• Journal of Fashion Business
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• v.7 no.6
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• pp.1-9
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• 2003

This study has as its primary aims the following: to create a fashion design based on the aesthetic value of Art Nouveau which flourished from the end of 19 century to the beginning of 20 century. In this thesis, two themes, Rose Aroma and Iris Memory are selected among the flower patterns and are used to create two works. First, the Rose Aroma theme is for an evening dress of S-curve style made with Silk Jacquard based on rose image of Art Nouveau. For decoration, artificial rose and its stem, and leaves are used to highlight hip line. By such design associated with a flower garden, cubic effects are expressed as a design point. Second, the Iris Memory theme is for a wedding dress made with tulle based on Iris image of Art Nouveau. This dress has a special point in its top bra, underwear used like an outer garment, involving spangle, beads, pearl, and cubic in order to enhance its visual effect. These works are significant in presenting the development possibilities of various fashion designs by introducing Art Nouveau style into diverse modern fashions.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.10 no.2
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• pp.857-880
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• 2016

Due to an increasing number of cyberattacks globally, cybersecurity has become a crucial part of national security in many countries. In particular, the Digital Pearl Harbor has become a real and aggressive security threat, and is considered to be a global issue that can introduce instability to the dynamics of international security. Against this context, the cyberattacks that targeted nuclear power plants (NPPs) in the Republic of Korea triggered concerns regarding the potential effects of cyber terror on critical infrastructure protection (CIP), making it a new security threat to society. Thus, in an attempt to establish measures that strengthen CIP from a cybersecurity perspective, we perform a case study on the cyber-terror attacks that targeted the Korea Hydro & Nuclear Power Co., Ltd. In order to fully appreciate the actual effects of cyber threats on critical infrastructure (CI), and to determine the challenges faced when responding to these threats, we examine factual relationships between the cyberattacks and their responses, and we perform analyses of the characteristics of the cyberattack under consideration. Moreover, we examine the significance of the event considering international norms, while applying the Tallinn Manual. Based on our analyses, we discuss implications for the cybersecurity of CI in South Korea, after which we propose a framework for strengthening cybersecurity in order to protect CI. Then, we discuss the direction of national policies.

• Korean Journal of Veterinary Pathology
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• v.5 no.1
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• pp.1-4
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• 2001

Squamous cell carcinoma was diagnosed in a 4.5-year-old male African hedgehog (Atelerix albiventris). The patient was referred to Seoul National University, Veterinary Medical Teaching Hospital after 5 days history of left eye exophthalmos and corneal trauma. He had enlarged upper and lower jaw at the left part of the face and endophthalmitis of the left eye. On radiographic examinations, loss of bone density at the left zygomatic arch and sun-burst type periosteal reaction of left mandible with decreased bone density was noted. Histologically, the neoplastic mass consisted of markedly invasive, cords of nests of squamous epithelial cells. Intercellular bridges and keratin pearl formation were also noted.

• Journal of Plant Biology
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• v.29 no.1
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• pp.1-10
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• 1986

Intra- and inter-specific protoplast fusion of tobacco (Nicotiana tabacum cv. Virginia 115) and pea (Pisum sativum cv. Sparkle) were carried out in highly inhomogeneous alternating electric fields. Under the electric field of alternating current (AC, sine wave), 600 V/cm and 800 kHz for tobacco protoplast, and 600 V/cm and 700 kHz for pea protoplasts, the protoplasts were aggregated in pearl chains. Intra-specific protoplast fusions were most effectively induced within the aggregates of tobacco and pea, respectively, by the additional application of a single high field pulse of direct current (DC, square wave) at 1 kV/cm for 50 $mutextrm{s}$. Inter-specific fusions between protoplasts of the two plants were most effectively induced in the electric field of 600 V/cm and 700 kHz, and square wave pulse at 1 kV/cm for 50 $mutextrm{s}$. The duration of the pulse over the electrical breakdown voltages was simulated from 1 to 100 $mutextrm{s}$ in both tobacco and pea protoplast. The yield of the electrofusion products was significantly high (above 60%), compared with that (20%) of the standard fusion method by polyethylene glycol (PEG) 4,000, and the viability of electrofused protoplasts was above 70%, but that of PEG-fused protoplasts 8~16%, when determined by Evan's blue staining method.

• Mycobiology
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• v.38 no.2
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• pp.133-136
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• 2010

Stromatal fruiting bodies of Cordyceps cardinalis were successfully produced in cereals. Brown rice, German millet and standard millet produced the longest-length of stromata, followed by Chinese pearl barley, Indian millet, black rice and standard barley. Oatmeal produced the shortest-length of fruiting bodies. Supplementation of pupa and larva to the grains resulted in a slightly enhanced production of fruiting bodies; pupa showing better production than larva. 50~60 g of brown rice and 10~20 g of pupa mixed with 50~60 mL of water in 1,000 mL polypropylene (PP) bottle was found to be optimum for fruiting body production. Liquid inoculation of 15~20 mL per PP bottle produced best fruiting bodies. The optimal temperature for the formation of fruiting bodies was $25^{\circ}C$, under conditions of continuous light. Few fruiting bodies were produced under the condition of complete darkness, and the fresh weight was considerable low, compared to that of light condition.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.32 no.4
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• pp.184-191
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• 2009

In a technological driven environment, a depreciation estimate which is based on traditional life analysis results in a decelerated rate of capital recovery. This time pattern of technological growths models needs to be incorporated into life analysis framework especially in those industries experiencing fast technological changes. The approximation technique for calculating the variance can be applied to the six growth models that were selected by the degree of skewness and the transformation of the functions. For the Pearl growth model, the Gompertz growth model, and the Weibull growth model, the errors have zero mean and a constant variance over time. However, transformed models like the linearized Fisher-Pry model, the linearized Gompertz growth model, and the linearized Weibull growth model have increasing variance from zero to that point at which inflection occurs. It can be recommended that if the variance of error over time is increasing, then a transformation of observed data is appropriate.

• Journal of Life Science
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• v.7 no.4
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• pp.282-288
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• 1997

To obtain a basic information on the development of Genus Viola, ultrastructure and electrofusion process between the two protoplasts from wild Viola callus cells and pansy mesophyll cells were observed with a scanning electron microscopy(SEM) and transmission electron microscopy(TEM). In the ultrastructural observation of wild viola callus protoplasts and pansy mesophyll protoplasts using SEM, their cell walls were removed completely. A knob-like formation was observed on the enlarge surface of viola callus protoplasts. On the surface of pansy mesophyll protoplasts net-like chloroplasts were observed. In SEM observation of pansy mesophyll protoplasts, chloroplasts devoid of membrane were observed on the surface the protoplasts. Pearl chain was formed by applying AC field of 200 V/cm at 1.0 MHz for 43 sec. The lysis of plasma membranes and fusion process occurred by applying a 1,600 V/cm DC pulse twice for 1 sec. After 1-2 hours of a DC pulse application, it was observed that the two protoplasts were fused completely into one cell. In TEM observation of the fused cell, many small vacuoles were located in the fusion area of the two protoplasts. Indeed, two distinct regions were observed during fusing process; in one region, a nucleus was found, while in the other region, both nucleus and nucleous were found.

• The Research Journal of the Costume Culture
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• v.26 no.6
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• pp.852-871
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• 2018

The purpose of this study is to suggest a direction for the development of unlined underwear design. A style for unlined underwear can take strong points and compensate for weak points by using the characteristics of wire brassieres and bralettes. As a method for research, we based our study on literature and data such as previous studies, professional books, internet articles, and fashion magazines. As a result of analyzing the brassiere's status in lines like 'FOREVER 21' and 'VICTORIA'S SECRET', we determined that 'FOREVER 21' reflects the trend of unlined style underwear, and 'VICTORIA'S SECRET' has both unlined and wire brassieres to make breast correction. In the case of unlined style brassieres, a wire is put in order to gather the chest for compromising comfort and correction. In order to express the possibility of expressing various feelings even in unlined style, Design 1 lets everyone know that unlined underwear can be very comfortable as a daily, not used only occasionally for events. Design 2 demonstrates that besides the artificial feeling of using the strap for a special day or event, it can be expressed naturally by using the lace as it is. Design 3 expresses the luxurious and sexy, rather than the low-grade decadent sexy, by using the feeling of the single layer lace and the pearl decoration for wedding and honeymoon.

• Archives of Plastic Surgery
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• v.49 no.3
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• pp.339-345
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• 2022

Background Patients that undergo mastectomy for breast cancer with reconstruction may be prone to prolonged opioid use. As risk factors are not well-established, this article sought to better understand the risk factors that may be associated with this. Methods Patients that underwent breast reconstruction between 2010 and 2018 were identified in PearlDiver, a national insurance claims database. Patient demographics and comorbidities were elucidated, and various complications were then identified. Descriptive statistics as well as a multivariate analysis was used to evaluate the association of risk factors and complications. Results Breast reconstruction patients of 24,765 were identified from this database. Obesity, tobacco use, benzodiazepine use, and anticonvulsant use were all associated with prolonged opioid prescriptions greater than 90 days after both alloplastic and autologous reconstruction. Conclusion Prolonged opioid use continues to remain a topic of concern, and particularly in cancer patients that undergo breast reconstruction. Providers should be aware of potential risk factors for this to reduce this chance following breast reconstruction surgery.