폐리튬이온전지 NCM 양극활물질로부터 말릭산을 이용한 유가금속의 침출

손성호,김진화,김현종,김선정,이만승,Son, Seong Ho,Kim, Jin Hwa,Kim, Hyun-Jong,Kim, Sun Jung,Lee, Man Seung 한국자원리싸이클링학회 2014 資源 리싸이클링 Vol.23 No.4

Nickel, cobalt and manganese-based(NCM, $Li(Ni_xCo_yMn_z)O_2$) cathode active materials of spent lithium-ion batteries contained valuable metals such as cobalt(15 ~ 20%), nickel(25 ~ 30%), manganese(10 ~ 15%) and lithium(5 ~ 10%). It was investigated the eco-friendly leaching process for the recovery of valuable metal from spent lithium-ion battery NCM cathode active materials by DL-malic acid($C_4H_5O_6$) as an organic leachant in this research. The experiments were carried out to optimize the process parameters for the recovery of cobalt, nickel and lithium by varying the concentration of lixivant, reductant concentration, solid/liquid ratio and temperature. The leaching solution was analyzed using ICP-OES(Inductively Coupled Plasma Optic Emission Spectrometer). Cathode active materials of 5 wt. % were introduced into the leaching solution which was 2 M DL-malic acid in addition of 5 vol. % $H_2O_2$ at $80^{\circ}C$ and it resulted in the recovery of 99.10% cobalt, 99.80% nickel and 99.75% lithium in 120 min. $H_2O_2$ in DL-malic acid solution acts as an effective reducing agents, which enhance the leaching of metals. 폐리튬이온전지 NCM($Li(Ni_xCo_yMn_z)O_2$)양극활물질 내에는 코발트(15 ~ 20%), 니켈(25 ~ 30%), Mn(10 ~ 15%) 및 리튬(5 ~ 10%) 등의 유가금속이 존재한다. 본 연구에서는 폐리튬이온전지 NCM 양극활물질로부터 친환경 유기산인 말릭산을 이용한 유가금속 침출 공정을 연구하였다. 주요공정인자는 말릭산 농도, 과산화수소 농도, 고액비, 반응온도 등이었으며, 침출액 내 금속농도는 ICP-OES(Inductively Coupled Plasma Optic Emission Spectrometer)를 통해 분석하였다. 환원제($H_2O_2$) 첨가로 인해 유가금속의 침출율이 상승하는 효과를 얻었으며, 최적공정인자는 말릭산 2 M, 과산화수소 5 vol.%, 고액비(solid/liquid ratio) 5 wt.%, 반응온도 $80^{\circ}C$이었으며, 침출율은 코발트 99.10%, 니켈 99.80%, 리튬 99.75%이었다.

전기도금용 귀금속 코팅 산화물 전극 특성 연구 (초)

손성호,( Son Sung Ho ),정도원,( Chung Do Won ) 대한금속재료학회 ( 구 대한금속학회 ) 2007 대한금속재료학회 학술대회 개요집 Vol.2007 No.1

낙동강 중류유역의 지역별 비점오염 특성

손성호,최경숙,Son, Seong-Ho,Choe, Gyeong-Suk 한국관개배수위원회 2007 한국관개배수논문집 Vol.14 No.2

The characteristics of non-point source pollutant loads in middle-stream of Nakdong River Were studied through analysis of pollutant loads of 8 sub-watersheds divided based on administrative district. The pollutant concentration of each sub-watershed was collected from Nakdong-River Water Research Institute and Daegu Regional Environmental Office, respectively. Pollution items analysed in this study were BOD, SS, T-N and T-P. High degree of non-point pollution was observed from Gumi, Goryeong, Gyeongsan, Daegu and Sungju, and pollution was usually increased during rainy season. This result indicates that a given pollution condition within the watershed can be more sensitive than location factor to the level of water quality. The main sources of non-point pollution were population and livestock, as well as landuse factor, and were found to significantly contribute to the water pollution. Alternative solutions for controlling pollution sources, therefore, should be provided to meet target levels of water quality in this region.

급성뇌경색증에 동반된 악성 뇌부종 환자에 있어서 뇌경막확장성형술을 통한 두개골 감압술의 효용성

손성호,김수영,정영균,조봉수,박혁,이동열,Son, Sung Ho,Kim, Soo Young,Jeong, Young Gyun,Cho, Bong Soo,Park, Hyuck,Rhee, Dong Youl 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.9

Objectives : There is continuing controversy about the benefits of decompressive craniectomy in massive cerebral edema following space occupying hemispheric cerebral infarction. The aims of this study are to determine the effectiveness and to confirm the life-saving nature of decompressive craniectomy with dural augmentation for massive cerebral infarction. Patients and Methods : We present twelve patients with medically uncontrollable hemispheric cerebral infarction. All were treated with extensive craniectomy and duroplasty without resection of necrotic tissue. We evaluated various characteristics(size of hemispheric infarction, Glasgow Coma Scale, volume of low density and midline shift in CT) at three different periods(preoperative, immediate postoperative and 3-4weeks after operation) and evaluated effectiveness of hemicraniectomy for massive cerebral edema after large hemispheric infarction. Results : All patients have survived from surgery. Nine patients with nondominant hemispheric infarction showed significant functional recovery with minimal assistance, and remaining two patients with dominant hemispheric infarction and one patient with nondominant hemispheric infarction have functionally dependent. The volume of low density and midline shift in CT were significantly reduced after decompressive craniectomy. Conclusions : Our results indicate that decompressive craniectomy with dural augmentation without resection of necrotic tissue for massive cerebral hemispheric infarction not only reduce the mortality and infarction size but also significantly improve the outcome, especially for nondominant hemispheric infarction.

다발성 "De Novo" 동맥류 1예 - 증 례 보 고 -

손성호,정영균,김수영,박화성,박혁,이동열,Son, Sung Ho,Jeong, Young Gyun,Kim, Soo Young,Park, Hwa Sung,Park, Hyuck,Rhee, Dong Youl 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.2

The development of completely new intracranial aneurysms after previous successfully treated aneurysm is uncommon. A 50-year-old female presented with a case of multiple de novo aneurysm which were an aneurysm of right ophthalmic segment of internal carotid artery and an aneurysm of right A1 artery, 6 years after the clipping of an aneurysm of right posterior communicating artery. She had no history of hypertension, cigarette smoking and use of oral contraceptives, and had no evidence of genetic disorder. The laboratory findings were normal. All de novo aneurysms were clipped by basal anterior interhemispheric approach in one stage due to the direction of the aneurysm of the ophthalmic segment of the internal carotid artery.

4배체 현사시나무 (Populus alba L. X P. gludulosa Uyeki)의 약배양에 의한 식물체 재분화

손성호,김정희,문흥규,노은운,이윤희,김미희,박진선,이용욱,윤양,이석구,Son, Sung-Ho,Kim, Jung-Hee,Moon, Heung-Kyu,No, Eun-Woon,Lee, Yoon-Hee,Kim, Mi-Hee,Park, Jin-Sun,Lee, Yong-Wook,Yoon, Yang,Lee, Seok-Gu 한국식물생명공학회 1995 식물생명공학회지 Vol.22 No.3

현사시나무 4배체의 약배양에 의하여 2배체 식물을 얻을 수 있었다. 약배양에 의한 캘러스 유도에는 2,4-D가 효과적 인 것으로 나타났다. 증식된 캘러스로부터 식물체 재분화를 위해서는 16시간의 광조건하에 6-8 $\mu$M의 zeatin 처리가 가장 좋은 반응을 보였는데 이때 얻어진 줄기수는 평균 7.7개 였다. 재분화된 식물체는 MS 기본배지에서 쉽게 뿌리를 유기시킬 수 있었으며, 이들 식물체는 폿트묘로 육성하여 온실 및 포지로 이식하였다. 약배양유래의 300클론에 대한 생육상태를 조사한 결과 삽목묘에 비하여 33%는 생장이 저해됨을, 47%는 생장이 더 좋은 것으로 나타났으며, 그중 20%는 삽목묘에 비해 직경이 5배 이상되는 거대 엽을 가지고 있었다. 염색체 수는 대체로 2배체성 혹은 4배성을 띠고 있었으며, RAPD marker를 이용하여 DNA polymorphism을 본 결과 약배양 유래의 몇몇 식물체에 있어 서 밴드 형태적인 차이를 나타내는 개체를 발견할 수 있었다. Diploid plants were obtained by anther culture of tetraploid poplar(Populus alba L. X P.glandutosa Uyeki). The effect 2,4D on callus formation from anther culture was greater than any other auxins tested. The highest average number of multiple shoots per callus was obtained when zeatin was used at levels of 6-8 ${\mu}$M. Regenerated shoots were excised and transferred to MS basal medium. Rooted plantlets were subsequently transferred to pots containing artificial soil mix. Finally 100 plane were transplanted in nursery located in forest Genetics Research Institute. for the 300 anther clones growing in greenhouse for 6 months after transplanting, 33% were slow-growing, 47% were rapid-growing and 20% had huge leaf size with rapid-growing characteristics. Chromosome study showed a narrow range of variation from diploid to tetraploid. DNA polymorphism studies using various RAPD markers revealed some extend of differences among the anther-clones in their band pattern.

아시클로버 - 아시알로페투인 접합체의 간 포획 및 안정성

손성호,허근,이영대,오두만,용철순 ( Sung Ho Son,Keun Huh,Young Dae Lee,Doo Man Oh,Chul Soon Yong ) 한국약제학회 1997 Journal of Pharmaceutical Investigation Vol.27 No.1

N/A For the purpose of improving the chemotherapeutic index of acyclovir(ACV), it was conjugated with asialofetuin(AF), which has been reported to enter into hepatocytes. When [H³] acyclovir in itself or its conjugate were administered to rats, the latter was taken up more selectively by the liver than any other tissues. The stability of ACVMP-AF conjugate in phosphate buffer (pH 5.0) and rat liver homogenate showed a pseudo-first order profile. ACVMP-AF, however, was relatively stable in pH7.4 phosphate buffer and rat plasma. The conjugate was added to the isolated rat hepatocyte and cellular uptake was monitored by scintillation counting for up to 6 hours at 37℃. Hepatocytes incubated with the conjugate exhibited radioactivities significantly enhanced over control levels dose-dependently, i.e., a 3-40 fold increase in radioactivities was observed over controls at the conjugate concentrations of 0.1-10 ㎍/㎖. The AUQ in the liver, kidney, spleen. intestine and lung was higher in treatment with ACVMP-AF than that in treatment with ACV. In treatment with ACVMP-AF, the weighted-average overall drug targeting efficiency(Te) for the liver was higher than in treatment with ACV(57.00 vs 13.31%), and the weighted-average tissue exposure(Re) was 5.03 for the liver. These results indicated that ACVMP-AF conjugate was rapidly taken up by hepatocytes and could be an efficient and selective hepatic targeting system.

골반부 암 치료 시 초음파검사를 통한 방광체적과 CBCT영상 방광체적의 비교

손성호,박하령,백정진,손종기,최민호,Son, Seong Ho,Park, Ha Ryung,Baek, Jung Jin,Son, Jong Ki,Choi, Min Ho 대한방사선치료학회 2019 대한방사선치료학회지 Vol.31 No.2

목 적: 골반부 방사선 치료 시 방광체적에 따라 방사선 조사범위가 달라지기 때문에 방광체적을 조절하여 치료를 진행한다. 따라서 본 연구에서는 초음파펄스진단장치(BVI 6100, (주)메디칼써프라이)를 이용하여 방광체적 변화를 추적하여 BVI의 정확성을 평가하고자 한다. 대상 및 방법: 2017년 1월부터 2018년 9월까지 부산대학교병원에서 골반부 방사선 치료를 받은 환자 19명을 대상으로 하였다. 치료 시 BVI를 이용하여 획득한 방광체적과 CBCT영상에서 획득한 방광체적을 구간별로 비교한 후 그 유의성을 평가하였다. 결 과: 전체 체적 구간에서의 BVI와 CBCT는 r=0.773의 유의한 상관관계가 나타났으나 치료계획영상에서의 방광체적을 기준으로 p값이 125~175cc에서는 0, 175~275cc에서는 0.05보다 낮게, 그리고 275~375cc에서는 0.05보다 높게 나타났다. 결 론: 본 연구에서는 방광체적이 275cc 이상의 환자의 경우 BVI와 CBCT영상 간의 방광체적이 유의성이 있으나 방광을 비우는 환자의 경우 BVI측정의 신뢰성이 떨어진다고 판단할 수 있었다. 따라서 175~275cc 환자에 대해서는 BVI의 보정값을 이용하여 적절한 체적오차허용범위를 사용하면 유의한 값을 얻을 수 있을 것이다. Purpose: During the pelvic radiation therapy, it is performed with controlling bladder volume because the range of irradiation is changed depending on the bladder volume. Therefore in this study, we evaluate the accuracy of BVI by tracing the change of bladder volume using ultrasonic pulse diagnosis equipment(BVI 6100, Medical supply Co. LTD) Material and Methods: From January 2017 to September 2018, 19 patients who received pelvic radiation therapy at Pusan National University Hospital were included. To treat the patient, we compared that the bladder volume obtained from the BVI and the bladder volume obtained from the CBCT image then we evaluated for significance. Results: There was a significant correlation of r=0.773, BVI and CBCT in the whole volume section. However, based on the bladder volume in the RTP Image the p value was shown to be 0 at 125~175cc and lower than 0.05 at 175~275cc, And more than 0.05 at 275~375cc. Conclusions: In this study, the patient whose bladder volume is above than 275cc, there is a significance of bladder volume between BVI and CBCT image. However, we could make a decision to be undermined the reliability of BVI measurement in the case of the patient with emptied his urine. Therefore, it is possible to acquire a significant value for 175~275cc patients to use the correction value of BVI and the appropriate tolerance of volume.

어학 : 독일어의 부가어화

손성호(Seong Ho Son) 한국독일어문학회 1999 독일어문학 Vol.10 No.-

이 논문은 언어의 기능과 형식 사이의 상관관계를 언어조작 sprachliche Operation의 한 수단인 부가어화 Attribuierung를 통해 고찰하고자 한다. 일반적인 개념형성은 그 표현가능성이 어휘화 Lexikalisierung (z.B. Wortbildung)를 통해 확대될 수 있으나 곧 한계에 부딪히게 된다. 무한한 개념형성을 위해서는 이러한 어휘적 조작 lexikalische Operation 외에, 단순한 어휘의 차원이 아닌 통사적 관계 syntaktische Relation의 도입을 위해 통사적 언어조작 syntaktische Operation을 필요로 하게 된다. 이 때 통사적 언어조작의 한 방법인 부가어화 Attribuierung는 중요한 역할을 담당하게 된다. 의사소통과 기능의 관점에서는 이러한 개념형성이 청자나 독자에게는 대상확인 Gegenstandsidentifikation를 통하여 이해되어지므로, 부가어화의 기본적인 기능은 두가지 상호보완적인 원칙, 즉 개념형성과 대상확인이라고 할 수 있겠다. 부가어화에는 함께 수반되는 상호보완적인 세 개의 언어조작이 있는데 - 종속화 Subordination, 체언화 Nominalisierung, 빈자리 형성 Leerstellenbildung - 이들은 부가어화의 하위 언어조작으로 분류된다. 부가관계의 구조형성은 (예를 들자면 명사구 내에서의 부가어들의 위치) 이 세가지 언어조작들이 얼마나 문법화가 되어 있는지에 따라 결정되어진다. 언어조작의 문법화의 정도 die Grade der Grammatikalisierung는 문법화의 등급도 Dynamizita¨tsskala der Grammatikalisierung 상에 분포되며, 여기에 두가지의 상호보완적인 기능 원칙 zwei komplementa¨re funktionale Prinzipien, 즉 직설성 Indikativita¨t과 술어성 Pra¨dikativita¨t의 도입을 통해 언어의 기능과 조작 및 형식의 상관관계를 고찰할 수 있겠다.

연료 전지 응용 분야를 위한 30kW DC-DC 컨버터 개발

손성호(Seong-Ho Son),김태현(Tae-Hyun Kim),권창현(Chang-Hyun Kwon),유찬훈(Chan-Hun Yu),장성록(Sung-Roc Jang),김형석(Hyoung-Suk Kim) 전력전자학회 2022 전력전자학술대회 논문집 Vol.2013 No.11