於靑島의 海藻相(豫報)

金重來 군산대학교 1978 群山水産專門大學 硏究報告 Vol.12 No.2

The present paper gives a brief sketch of the algal flora and vegetation at Eocheong Do which is located far away 39mi1es from Gun san, facing the Yellow sea. The current running round the coast of Eocheong Do is the tributary of the warm current known as "kuroshio", but in winter the current becomes weak, and the island is under the influence of the colder water of sea shore. The intertidal and sublittoral collections of marine algae were made at 8 points in june, 1976 April, 1977 and May, 1978(Fig. 1) In the list(Table. 1)78 species are inumerated, including 13 species of Chlorophytae, 22 species of Phaeophytae, and 43 species of Rhodophytae. Segawa's c/p was estimated about 0. 6. From the point of view to c/p, this area has a frigid marine flora. It is interesting that Ptilota pectinata(Grun) Kjellmanf, litoralis Kjellman was found in tide pools of the lower intertidal belt, what had been present only along the southern coast of our country. The writer collected fortunately 20 species, whick have never been recorded as it had been found in this area.

海藻의 育種을 위한 基礎的硏究 : 미역의 單爲生殖

金重來 군산대학교 1982 群山水産專門大學 硏究報告 Vol.16 No.1

Pure culture of female and male gametophytes of Undaria pinnatifida Suringer were carried out under a 14 hrs photoperiod at 16-18℃, and illumination was regulated to 2,500-3,000lux. Zoospores obtained from pieces of a fertile sporophyll were cultured for 3 weeks, and isolated singly male from female for a unialgal culture of the gametophyte. Fertile fronds of Undaria pinnatifida used for the culture experiments were collected on June, 1980-81 at Oechoeng island, Jollabukdo (Korea). Almost of unfertilized eggs ungerminated and degenerated, but a few of them developed normally into haploid young sporophytes or various abnormal types. The results summerized were as follows. (1) Within 14 days from unialgal culture, most of the female gametophytes became fertile and many eggs were placed on the tops of their oedogonium, and male gametophytes made plantful antheridiums on the terminal cells of their filamentous branches. Contrastively, many young sporophytes were observed at normal culture for the control, which mixed with both sex. (2) Unfertilized eggs did not germinate generally, and degenerated soon after liberation. But some of them swelled oneself abnormally (about 60μ in diameter), or developed into a form of gourd and grape. These malformed germlings degenerated at last. (3) A few of unfertilized eggs grew into a form of fist, indefinite thalli and a normal form of sporophyte same as those at the controls. In the young sporophytes derived from unfertilized eggs, original cells of young midrib were generally vague in outline, which had growing-zone and formed early multi-layer part. Their poor growth might be due to it. (4) It was the noteworthy fact that the abnormal poor germs described as above (swelling, gourd, fist type etc.) were found among the vegetative cells regenerated at cut sections of a healthy young sporophyte. (5) Microscopic male gametophytes which branched copiously, grew continuously into spherical colonies, and did not make a apogamy but two terminal cells of a mature branch of these filamentous gametophytes. The two apogamous young sporophytes were not characteristic as compared with a normal one. (6) The whole germination rate of unfertilized eggs originated in a isolated culture, was 15.2%, and only 8 eggs developed normally into haploid young sporophytes (3.6%).

김 果胞子 發芽生長에 미치는 2.4-D의 영향

金重來,趙永元 군산대학교 1980 群山水産專門大學 硏究報告 Vol.14 No.3

김 果胞子의 發芽生長에 미치는 영향을 調査하기 위해서 모무늬 돌김의 果胞子를 유리片과 맛조개 貝穀위에 着生시켜 2.4-D의 濃度別培地에서 培養 觀察하였다. 그 結果를 要約하면 다음과 같다. (1) 유리片위에 着生한 無基質狀態의 果胞子는 1.0㎎/ℓ의 培地에서 34%,0.5㎎/ℓ에서 29.5%의 發芽率을 나타내었고, 貝穀속에 寒孔·發芽한 것은 0.5㎎/ℓ에서 58.8%, 1.0㎎/ℓ에서 39.5%였으며 全般的으로 對照에 比해 2.4 - D添加培地의 發芽率이 좋았다. (2) 絲狀體의 生長에 미치는 效果는 無基質絲狀體의 경우 0.1㎎/ℓ에서 對照對比 168.0%, 0.5㎎/ℓ에서 159.0%를 나타내고 貝穀絲狀體의 경우는 0.1㎎/ℓ에서 283.0%, 0.01㎎/ℓ에서 282.0%를 보여 兩者間에 效率의 差가 認知되었다. (3) 無基質絲狀體를 20日間 繼續培養한 結果, 0.1㎎/ℓ 培地외 絲狀體는 眠大枝로 伸張하고 甚한 屈曲을 이루었다. (4) 生長이 빠른 絲狀體의 세포는 대체로 가늘고 긴 것이 많았다.

김의 殼胞子에 대한 γ-線 照射效果 : I. 殼胞子의 發芽生長에 미치는 γ-線의 照射效果

金重來,金鍾連 군산대학교 1983 群山水産專門大學 硏究報告 Vol.17 No.3

I. □胞子의 發芽生長에 미치는 γ -線의 照射效果 r - Irradiation effects from □Co at 250r - 3000r on conchospores of laver (P. tenera) were examined. The major investigation was to clarify the biological effects of gamma irradiation on the germination and growth of conchospores at 48hrs after liberation, which mostly were composed of one cell yet. The results obtained were summarized as follows. 1) All conchospores served as materials germinated and developed normally to young germs at any irradiations. 2) In general, the visible irradiation effects on growth were observed at every irradiation dosage, and thus the highest growth-rate was 365% in frond-area at 1.0 KR and 126% was recorded as minimum at 250 r. 3) There is a tendency for the growth-rate curve, whose peak was at 1.0KR, to reduce slowly with increasing irradiation dosage in the range of 3.0 KR. 4) Antheridums, carpogoniums and carpospores resulted from their fertilization were observed on the fronds exposed at 1.0-1.5 KR irradiation. 5) Some giant cells and callus-like tissues multiplied abnormally were found on a few fronds at 250 r and 1.0 KR.

都屯理 참김 養殖場에 對한 硏究 (I) : 큰 참김의 移植效果와 施肥에 의한 增産效果

金重來,金容菫 군산대학교 1978 群山水産專門大學 硏究報告 Vol.12 No.2

The effects of transplanting P. tenera kjellman, form tamatsuensis Miura, a new species of laver, and springkling nitrogenous manures over fronds for the growth and production were studied in Do Dun Ri culture ground along the coast of Bi In bay located at Soe chon Gun, Chung choeng Nam Do. The laver farm have been inferior to southern province in both quality and quantity. We investigated into sush various environmental factors as water temperature, salinity, nutrient contents of sea water by which the growth of laver is affected. The eperiments were carried out from Apr. 1977 to Apr, 1978 and the results of these studies are summerized as follows. (1) The effect of transplanting Porphyra tenera kjellman, form tamatsuensis Miura, showed 138% in the rate of production. By the springkling manures over fronds, the rate of production was increased to 121-142%, and the most effective manure among the nitrigenous manures for paddy was urea in quality and nitrate nitrogen in quantity. The daily growth of P. tenera kjell, form tamatsuensis M. was 27.07% and P yezoensis U. form narawaensis M. 24.53%. (2) The nitrogen contents of p. tenera Kjellman to dry weight was from 4. 13% to 1.98%, and by the springkling manure they were kept more than 4.0%. (3) We are sure that the poorly nutrient contents of sea water, the freezing in the culture bed exposed to severe cold air, and the excessive lower temperature of sea water in the winter have brought the inferiority in both quality and quentity of products.

西海岸 中部 海藻相 및 群落調査 : Ⅱ. 保寧海域의 夏季 海藻相과 植生分析 Ⅱ. Summer Marine Algal Flora and Vegetative Analysis, Boryong Coast of Korea

金重來,李鐘和 群山大學校自然科學硏究所 1987 自然科學硏究 Vol.2 No.-

1. 本 調査地域에서 出現한 海藻類는 綠藻類 5種, 褐藻類 12種 및 紅藻類 27種으로 總 44種이고, 植生은 月島가 가장 豊富하고, 松島, 燈臺, 한여 및 가중구지의 順으로 貧弱하였다. 2. 優占種으로 出現한 種은 U. pertusa, P. siliquosa, S. confusum, C. okamurae이고, 亞優占種은 S. thunbergii, M. myagroides, S. horneri, G. amansii, C. crassicaulis이었다. 3. 種間 類似度는 70% 水準에서 內灣性種, 外洋性種, 內灣性과 外洋性의 混種 및 모자반類로 大別되었다. 4. 地域間 類似度는 85% 水準에서 潮間帶 上部群, 上·中部群, 中部群, 中·下部群 및 下部群으로 大別되었다. 5. 現存量은 燈臺 226.1g/㎡으로 가장 높고, 한여 168.9g/㎡ 月島 157.0g/㎡, 松島 140.4g/㎡, 가중구지의 順으로 낮았다. 6. 모자반類의 個體群은 濕重量에 對한 體長의 相對生長은 不等生長을 하고, 相對生長速度는 松島와 한여産이 높고, 月島와 燈臺産이 낮은 傾向을 보였다. On the marine algal community of summer season in the intertidal zone, mid-western coast of Korea, were investigated by the quadrat method at 5 localities, Songdo, Hanyeo, Woldo, Dungdae and Kajungguji, of Boryong coast in 1987. As a result, 44 species in total, 5 species of Chlorophyta, 12 species of Phaeophyta and 27 species of Rhodophyta, were identified. The representative dominant species of each stations are as follows, Ulva pertusa, Pelvetia siliquosa, Sargassum confusum, Caulacanthus okamurae and subdominant species were Sargassum thunbergii, Myagropsis myagroides, Sargassum horneri, Gelidium amansii, Chondria crassicaulis. According to the similarity 85% level of 20 stations revealed that the algal vegetation of vertical distribution can be clustered into the upper group, upper-middle group, middle group, middle-lower group and lower group, and similarity 70% level of 22 dominant species divided that the algal community can be clustered into the inland group, open sea group, mixed group of the inland and open sea species group and the Sargassum species group. The standing crops of biomass were low in order, at the Dungdae (226.1 g/m), Hanyeo(166.9 g/m), Woldo(157.0 g/m), Songdo(140.4 g/m) and Kajungguji(43.3 g/m), respectively. There was allometric relationships between length and wet weight of Sargassum populations represented by the unequal growth, the specific growth rates were higher at the Songdo and Hanyeo site than the Woldo and Dungdae site.

扶土灣의 環境과 資原生物學的 硏究

金重來,柳文熙,鄭義泳,崔文術 群山大學校自然科學硏究所 1986 自然科學硏究 Vol.1 No.-

扶土灣의 海洋還境 및 生物棲息環境을 비롯하여 植物플랑크톤, 主要水産動物의 生殖生態, 個體群成長, 害敵生物에 의한 白蛤의 斃死, 貝類의 資源量, 主要水産動物의 漁獲量, 그리고 有用海藻類의 生産에 關한 調査硏究 結果를 要約하면 다음과 같다. 1. 榮養鹽으로서 ??-N, ??-N, T-N과 ??-P는 陸水의 영향을 받는 곳에서 0.028∼0.046, 0.0011∼0.0023, 0.038∼0.049와 0.025∼0.035 mg/ℓ로 比較的 높았으나 陸水의 영향을 덜 받는 곳에서 각각 0.026∼0.031, 0.0005∼0.0017, 0.033∼0.043과 0.019mg/ℓ로 비교적 낮았다. 內灣으로 들어올수록 COD는 증가하며, 투명도는 감소하는 것으로 調査되었다. 2. 식물플랑크톤은 매번 1종 내지 3종이 크게 우점하였으며, 6월, 8월, 10월에 가장 큰 우점을 보인 種은 각기 Leptocylindrus danicus, Chaetoceros pseudocurvisetus 및 Chaetoceros rostratus였다. 여타의 해양생태학적 환경에 비하여, 조간대의 식물플랑크톤 군집은 계절변화나 종조성에 있어, 뚜렷한 차이가 있는 것으로 나타났다. 3. 백합, Meretrix lusoria, 바지락, Ruditapes philippinarum 그리고 가무락, Cyclina sinensis는 雌雄異體로서 卵生이다. 4. 백합과 바지락의 生殖周期는 5段階(分裂增殖期, 成長期, 成熟期, 放出期, 그리고 退化 및 休止期)로 區分할 수 있었으며, 가무락은 6段階(分裂增殖期, 成長期, 成熟期, 放出期, 退化期 그리고 回復期)로 區分할 수 있었다. 5. 백합의 産卵은 5月에서 10月까지 일어나며, 産卵盛期는 6月에서 7月이다. 그리고 이들 個體群의 群成熟度는 암, 수 殼長이 35∼40mm인 個體는 50% 以上이었고 殼長이 50∼60mm인 個體는 100%로 全個體가 再生産에 참여하였다. 6. 바지락의 産卵은 5月에서 9月까지 일어나며 7, 8月이 産卵盛期이다. 그리고 이들 個體群의 群成熟度(生物學的 最少成熟個體)가 50% 以上인 個體의 殼長은 20∼25mm이었고 全個體가 再生産에 참여하여 群成熟度 100%가 되는 個體들의 殼長의 크기는 35∼40mm 이었다. 7. 가무락의 産卵은 7月에서 9月까지 일어나며 7, 8月이 主産卵期이다. 8. Von Bertalanffy의 방정식에 의한 殼長과 全重量에 對한 成長曲線은 다음과 같다. 1) 백합 : ??, ?? 2) 바지락 : ??, ?? 3) 가무락 : ??, ?? 9. 穿孔腹足類인 큰구슬우렁, Neverita didyma에 依한 白蛤의 穿孔의 位置는 다양하나 大部分은 比較的 一定한 位置인 殼頂部位에 있었다. 그리고 구멍의 內徑과 外徑의 크기는 貝類의 殼長에 비례하였다. 10. 큰구슬우렁, N. didyma의 포식율은 實驗室內에 調査한 結果 주간보다 야간에 더 컸고, 큰구슬우렁 1마리가 하루에 평균 0.2個體(殼長 20mm 以上)를 穿孔하여 포식하였다. 11. 扶土灣內의 年間 生産可能量은 白蛤이 ??, 가무락 ?? 그리고 바지락 ??으로 推定된다. 12. 김 生産量과 氣象要因과의 관계는 매우 密接하며 특히 養殖期間中의 적당한 風波는 김 生産에 크게 效果的이다. 13. 김의 年間生産量은 乾海苔로 約 439,500束으로 推定된다. 14. 主要水産動物(貝類除外)의 年間漁獲量은 約 38,430kg이며 이 中 魚類가 13種에 30,740.5 kg으로서 約 80%를 占有하고 單一魚種으로는 학공치가 으뜸으로 30.5%를 차지한다. Environmental and resources biological studies were performed aiming to the preservation of the resources biota in Pusa Bay from April to November 1986. 1. The nutrient concentrations of ??-N, ??-N, T-N and ??-P in inquiry area affected by the inflowing inland water were 0.028-0.046, 0.0011-0.0023, 0.038-0.049 and 0.025-0.035 (mg/1), respectively. However in the area not affected by the inland water the nutrient concentrations were 0.026-0.031, 0.0005-0.0017, 0.033-0.043 and 0.019, respectively. 2. Great dominance were shown by one to three phytoplankton species at each sampling time. The most dominants were Leptocylindrus danicus, Chaetoceros pseudocurvisetus, and Chaetoceros rostratus in June, August, and October, respectively. Intertidal phytoplankton community were found to be quite distinct in its seasonal succession and also in its species composition from that of the other temperate sea areas. 3. Sexualities of Meretrix lusoria, Ruditapes philippinarum and Cyclina sinensis are dioecious, and the species are oviparous. 4. The reproductive cycles of M. lusoria and R. philippinarum can be classified into five successive stages (multiplicative, growing, mature, spent, and degenerative and resting stage), while those of Cyclina sinensis can be classified into six successive stages (multiplicative, growing, mature, spent, degenerative, and recovery stage). 5. Spawning of Meretrix lusoria occurs from May to October with a peak from June to July, and the percentages of the first maturity of female and male clams are over 50% in 35∼40 mm and 100% in 50 ∼60 mm of the shell length. 6. Spawning of Ruditapes philippinarum occurs from May to September with a peak spawning in July-August, and the percentages of the first maturity (biological minimum size) of these populations are over 50% in 20∼25 mm, and 100% in 35∼40 mm of the shell length. 7. Spawning of Cyclina sinensis occurs from July to September with a peak spawning in July-August. 8. Growth curves for the shell length and total weight fitted to von Bertalanffy's equation were expressed as follows: 1) Meretrix lusoria : ?? ?? 2) Ruditapes philippinarum : ?? ?? 3) Cyclina sinensis : ?? ?? 9. The location of the holes on the valves of Meretrix lusoria by boring snail, Neverita didyma varied widely, while most of holes on the valves were located at relatively definite position (umbo position) on the valves. The inner and outer diameter of the holes varied in proportion to the shell length of the clam. 10. Predation rates of Nerverita didyma was much greater at night than during the day in the laboratory, an average of 0.2 individual of clam was drilled and consumed per snail per day. 11. The amount of annual yield of Meretrix lusoria, Ruditapes philippinarum and Cyclina sinensis were estimated to be about 726.40M/T, 32.31M/T and 23.91M/T, respectively. 12. The productivity of Porphyra species is closely related with atomospheric factors in the culture ground through the seasons in 1985. The wind among the factors seems to have a good effect on the growth and production of Porphyra. 13. The annual yield of Porphyra species was estimated to be about 439,500 bundles by dried-laver. 14. The annual catch of commercial species of fisheries animals (except shell-fishes) was presumed to be about 38,430 kg and the fishes among them, including 13 species, was calculated to 30,740.5 kg, which dominated over 80% of total fishing amounts. The most important species of fishes was quantitatively Hemirhamphus sajori, whose catch was inferred to 3,300 kg at a fish-farm (10ha in scale) and 30.5% of the totality, followed by Platycephalus indicus.

사후분해 시체에 대한 법의학적 접근

최영식,이상용,김유훈,조갑래,이봉우,양경무,정낙은,서중석,이한영,이원태,강현욱 大韓法醫學會 2000 대한법의학회지 Vol.24 No.2

Disposal of a homicide victim by dismemberment is rare, but individual cases are on record in most major medicolegal departments. Recognition of postmortem mutilation may be of importance in the interpretation of certain murders committed by sexual perverts and other mentally deranged individuals and sometimes performed for the sole reason of easier disposal of the body. Postmortem dismemberment is usually readily recognizable as such; The edges of the injuries are dry and lack evidence of bleeding. The joints may be disarticulated without fracture, or the use of an axe or saw may be evident from examination of bones. Parallel horizontal or oblique furrows in the bone surface are caused by skipping of the saw prior to establishing depth. Such patterns on the bone may assist in identifying the particular saw involved. So we report 25 dismembered corpses that autopsied in National Institute of Scientific Investigation. This paper can help in attempting to establish not only the first criminal investigation steps but also the medicolegal approach methods in unidentified and dismembered deaths.

한국인 관상동맥의 변화양상에 대한 형태학적 연구

권태정,이상용,이한영,고영창,권기석,조재홍,김태공,김유훈,조갑래,서중석,이원태 內務部 國立科學搜査硏究所 2001 國立 科學 搜査 硏究所 年報 Vol.33 No.-

OSCILLATION CRITERIA OF DIFFERENTIAL EQUATIONS OF SECOND ORDER

Kim, Rae Joong The Kangwon-Kyungki Mathematical Society 2011 한국수학논문집 Vol.19 No.3

We give sufficient conditions that the homogeneous differential equations : for $t{\geq}t_0$(> 0), $$x^{{\prime}{\prime}}(t)+q(t)x^{\prime}(t)+p(t)x(t)=0,\\x^{{\prime}{\prime}}(t)+q(t)x^{\prime}(t)+F(t,x({\phi}(t)))=0$$, are oscillatory where $0{\leq}{\phi}(t)$, 0 < ${\phi}^{\prime}(t)$, $\lim_{t\to{\infty}}{\phi}(t)={\infty}$. and $F(t,u){\cdot}sgn$ $u{\leq}p(t)|u|$. We obtain comparison theorems.