• 대한한의학원전학회지
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• 제37권2호
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• pp.49-76
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• 2024

Objectives : The purpose of this paper is to examine the mechanism and treatment of the Zangfu warm disease in the Beijiqianjinyaofang. Methods : This study examined the Zangfu warm disease content in the Beijiqianjinyaofang, Shanghanzongbinglun, Saninfang, based on the Neijing explanation of the pathological mechanism. Treatment was analyzed among the three texts in terms of their similarity and difference. Results & Conclusions : 1. Zangfu warm disease is caused by seasonally inappropriate qi, which is infectious, epidemic, and seasonal. 2. While the Qingjinqian disease pattern was explained in terms of the relationship between Shaoyin and Shaoyang, the actual disease pattern happened more in the Taiyang channel, and partly in the Shaoyang channel. For treatment of Fu deficiency pattern, the Chaihudihuangtang was listed in the Qianjinyaofang and the Shanghanzongbinglun, while in the Sanyinfang, the formula was modified to extinguish heat and thin phlegm, while reinforcing healthy qi. 3. The Chimaifei disease pattern was explained in terms of the relationship between Shaoyin and Taiyang that is deeply associated with Wei qi. For treatment of Fu deficiency the Qianjinyaofang and Shanghanzongbinglun used the Shigaodihuangtang, while the Sanyinfang reinforced healthy qi and eliminated pathogenic qi. 4. The Huangrousui disease pattern was explained as being caused by problems in the Taiyin and Yangming, in which the Triple Burner fails to control and manage cold dampness. In treating Zang excessiveness, the Qianjinyaofang and Shanghanzongbinglun used the Xuanshenhanshuishitang, while the Sanyinfang instructed to reinforce healthy qi and eliminate pathogenic qi. In treating Fu deficiency, the Sanyinfang instructed to warm the center and dry dampness, tonifying the Spleen and reinforcing qi. 5. The Baiqili disease pattern was explained within the relationship between Taiyin and Taiyang. In treating Fu deficiency, the Qianjinyaofang and Shanghanzongbinglun used the Shigaoxingrentang, while the Sanyinfang instructed to reinforce healthy qi and eliminate pathogenic qi. In treating Zang excessiveness, the Qianjinyaofang and Shanghanzongbinglun used the Shigaocongbaitang, while the Sanyinfang instructed to reinforce healthy qi and eliminate pathogenic qi. 6. The Heiguwen disease pattern was explained as being caused by stagnation and obstruction in the Triple Burner due to clash between Taiyang and Shaoyin. In treating Zang excessiveness, the Qianjinyaofang and Shanghanzongbinglun used the Kushenshigaotang, while the Sanyinfang instructed to reinforce healthy qi and eliminate pathogenic qi. The Zangfu Warm Disease is a infectious disease concept which is based on the Five Zang that integrates the meridian aspect together with the Six Fu with which there is an external/internal relationship. This concept and treatment could be considered in dealing with COVID-19.

• Restorative Dentistry and Endodontics
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• 제32권6호
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• pp.522-529
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• 2007

최근 continuous wave of obturation technique을 이용한 근관 충전 장비로서 열 적용뿐 만 아니라 초음파 진동의 기능이 부가된 EndoTwinn이라는 기구가 소개되었다. 이 연구의 목적은 일반적으로 널리 사용되는 System B와 새로운 기구인 EndoTwinn을 사용한 근관충전 시 근단 폐쇄 효율을 비교하기 위한 것이다. 직선형 치근을 가진 60개의 발치된 소구치와 상악 절치를 근관장 측정 후, 6% 경사의 엔진 구동형 니켈-타이타늄 파일을 이용하여 #35 파일까지 확대 및 세척하였다. SB군 (n=20)은 System B, ET군 (n=20)은 EndoTwinn을 이용해 충전하고, Obtura II를 이용하여 backfill하였다. 양성 대조군으로서 PC군(n=10)은 근관 형성 후 빈 근관으로 남겨두었다. SB, ET, PC군의 시편은 치근첨 주위 1 mm를 제외한 모든 치근면에 nail varnish을 적용하고 음성 대조군인 NSB군(n=5)과 NET군(n=5)의 시편은 치근첨을 포함한 모든 치근면에 nail varnish를 도포하였다. 각 치아의 치근첨을 메틸렌블루 용액에 2일간 담궈 보관한 후, 치근첨에서 5 mm까지 1 mm간격으로 절단하여 근관벽의 착색 정도를 평가하였고, 각 높이에서의 점수를 합하여 그 시편의 점수로 정하였다. 두 장비 간의 염색제 누출의 유의성 검정을 위해 student t 분석을 시행하였다. 완전히 잘려지지 않고 플러거에 가타퍼챠가 달려나오는 빈도를 비교하기 위해 카이 분석을 시행하였다. PC군은 모든 근관과 상아세관이 착색되었으며, NC군은 착색이 되지 않았다. ET군의 착색 정도가 SB군보다 유의하게 적게 나타났으며(p < 0.05). 플러거에 가타펴챠가 달려나오는 빈도는 유의한 차이가 없었다. 이 실험의 조건하에서, EndoTwinn을 이용해 충전한 경우에 System B를 이용해 충전한 경우보다 근단부 밀폐 정도가 더 좋은 것으로 사료된다.

• 대한한의학방제학회지
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• 제15권1호
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• pp.49-105
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• 2007

Objectives : Select and analyze the case record of dyspnea and wheezing asthma recorded in Xu Ming Yi Lei An that is the most abundant and wide in contents in existing case records that are systematic, comprehending relatively modern Traditional Chinese Medicine to secure more deep and objective basis of Traditional Chinese Medicine approach for dyspnea and wheezing asthma to analyze and review possibility for clinical application in this study. Methods: The study was conducted with the case records of dyspnea and wheezing asthma in whole Xu Ming Yi Lei An. Pattern identify and classify selected case records and again classified with deficiency syndrome and excess syndrome. Also analyzed prescriptions and herbs used in the case records. Nature of herbs and properties and flavors that were used in the case records were classified and frequency of each nature of herbs were analyzed. Applicable case records were interpreted and suggested prescriptions, pulse feelings, pattern classification were analyzed and described. Results : Among the 5254 case records stated on the complete collection, it is researched that there are 63 case records for the symptom complex of dyspnea as 1.2% of the whole case records, and the case records on the symptom complex of wheezing asthma are 14 as the 0.27% of the total examples. 63 case record examples related with symptom complex of dyspnea were pattern identified and classified. As a result, deficiency syndrome of the Kidney(33 %), deficiency syndrome of the Spleen(26.0%), Wind-Cold(12.3%), phlegm turbidity(12.3%), Heat in the Lung(8.2%), asthenia of the Lung(8.2%) were investigated as above order. 14 case record examples related with wheezing asthma were pattern identified and classified. As a result, phlegm-Heat(26.3%), upper excess and lower deficiency(26.3%), external affections Wind-Cold(15.8%), Dampness-phlegm(10.5%), Lung asthenia(10.5%), Cold phlegm(5.3%), mutual deficiency and detriment of Heart and Kidneys(5.3%) were investigated as above order. Symptom complex of dyspnea has 67.1% of deficiency syndrome, 32.9% of excess syndrome resulting more deficiency syndrome than excess syndrome. Symptom complex of wheezing asthma has 42.1 % of deficiency syndrome and 57.9% of excess syndrome resulting more excess syndrome than deficiency syndrome. In case of symptom complex of dyspnea prescription used in the case record, the order of frequency is as following. Palmijihwang-tang, Bojung-ikgitang, Yungmijihwang-tang, Ijintang, Sojaganggitang, Igongsan. In case of symptom complex of wheezing asthma prescription in the case record, Yungmijihwang-tang, Ohotang, Dodamtang were mostly used. Herbs used in case records of symptom complex of dyspnea are Ginseng Radix, Poria, Glycyrrhizae Radix, Aconiti Iateralis Preparata Radix, Atractylodis Macrocephalae Rhizoma, Dioscoreae Rhizoma, Angelicae Gigantis Radix, Rehmanniae Radix Preparat, Pinelliae Rhizoma, Zingiberis Rhizoma Recens are mostly used. Nature of herb properties used for symptom complex of dyspnea and symptom complex of wheezing asthma are herbs that are warm properties. When the symptom complex of dyspnea and the symptom complex of wheezing asthma were treated. if the patient felt tenderness at Pyesu, doctors conducted pricking blood around the opposite Pyesu or Sipseon acupoint. when the patient didn't have tenderness at Pyesu by soft press, pricking blood was performed both sidees, right and left Pyesu. In case of the treatment of symptom complex of dyspnea and symptom complex of wheezing asthma, when they got treatment, when the symptom complex of disease is severe, a doctor cauterized the opposite Pyesu while the other Pyesu felt tenderness, and decided how the above treatment is performed whether the degree of the symptom compolex of disease is severe or not. In case of the treatment of symptom complex of dyspnea and symptom complex of wheezing asthma, if the person felt tenderness at Pyesu and is caught by the Wind-Cold pathogen, slight acupuncture is treated at relevant Pyesu with Fire needling. When patient with symptom complex of dyspnea and symptom complex of wheezing asthma cannot hawk sputum up from the oral and laryngopharynx, suction method is treated. Conclusion : With this study, actual traditional and clinical pattern identification form and characteristics of symptom complex of dyspnea and symptom complex of wheezing asthma were recognized. Modern case report utilizing in clinical application need to be secured and an incurable disease asthma need to be diagnosed and improvement for treatments have to be searched through other case records.

• 한국가금학회지
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• 제37권2호
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• pp.131-137
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• 2010

고온기 때 육계 수송 스트레스를 줄이기 위한 대비책으로 농가에서 출하 2일전에 버퍼제(sodium phosphate, sodium bicarbonate, magnesium sulfate)를 급여함으로 육계의 품질에 미치는 영향을 구명하기 위해 수행하였다 닭고기의 품질 $1^+$ 등급 평가에서 버퍼제를 급여하지 않는 대조구에서 4%를 차지하였으나 sodium phosphate 급여구가 8%, sodium bicarbonate 급여구 14%, magnesium sulfate 급여구가 28%로 대조구에 비하여 버퍼제를 급여한 처리구에서 $1^+$등급 출현율이 증가하였다. PSE 발생율은 대조구에서 경증 및 중증 모두 합하여 92%를 차지하였으나, sodium phosphate 급여구가 88%, sodium bicarbonate 급여구 28%, magnesium sulfate 급여구가 56%로 대조구에 비하여 버퍼제를 급여한 처리구에서 PSE 발생율이 현저히 저하되었다. 닭고기 외관의 멍은 대조구에서는 1~6 cm의 멍이 32%를 차지하였으나, sodium phosphate 급여구는 22%, sodium bicarbonate 급여구 24%, magnesium sulfate 급여구가 44%로 magnesium sulfate 급여구를 제외하고는 대조구에 비해 멍 발생율의 8~10% 정도 저하하였다. 닭고기의 명도($L^*$) 값의 변화는 가슴 근육 부위에서 대조구가 67.88을 나타내었고, sodium phosphate 급여구가 67.05, sodium bicarbonate 급여구 66.27, magnesium sulfate 급여구가 65.89로 magnesium sulfate 급여구에 명도가 가장 낮은 경향을 나타내었고, 전체적으로 대조구에 비해 버퍼제를 급여한 구에서 명도 값이 저하되었다. 상기와 같이 고온기 때 육계 수송 스트레스를 줄이기 위하여 버퍼제(sodium phosphate, sodium bicarbonate, magnesium sulfate)를 급여함으로 사계 및 닭고기의 이상 도체를 줄일 수 있을 것으로 사료된다.

• 대한한의학원전학회지
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• 제23권2호
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• pp.205-223
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• 2010

In Korean Traditional Medicine(abbreviated to K.T.M.), hyperhidrosis and anhidrosis are the targets of the medical treatment. Furthermore sweating appearance is also one of the important symptoms which explain a particular situation of the patient in K.T.M. And at "Sanghanron(傷寒論)" which is a traditional chief clinical bible written by Jang Gi(張機) later Han dynasty(漢代) in China made full use of the various kinds of diaphoresis[汗法] as a main medical treatment with purgation therapy[下法] and emetic therapy[吐法]. So the sweat in itself not only is the disease, but also is one of the symptoms explain a disease pattern. This thesis inquires into "Hwangjenaegyeong(黃帝內經)" referring to sweat which is the origin of recognition to the sweat in K.T.M. Some theses similar to this research had been made progresses and already reported, but most of them have classified the contents into biology, pathology, diagnosis, treatment after the model of western medical theory. In the aspect of comparative studying with other literature and clinic practical using, we found characteristics of referring to sweat in "Hwangjenaegyeong(黃帝內經)". And we classify the characteristics into some categories as follows. 1. There are some terms which make a title including sweat and symbolize the characteristics, for example sweat of soul[魄汗], sweat of death[絶汗], sweat of streaming[灌汗], sweat of weakness[白汗], sweat of sleep[寢汗], sweat of bright and heat[炅汗], sweat of kidney[腎汗], sweat of escaping[漉汗], cold sweat[寒汗], sweat on the head[頭汗], hyperhidrosis[多汗], heavy sweat[大汗]. But there aren't spontaneous sweat[自汗] or sweat like a thief[盜汗] which are the normal terms referring to sweat in history of K.T.M. And there are several descriptions about sweat appearance such as sweating in half of body[汗出偏沮], sweating in the rear end and thigh and knee[汗出尻陰股膝], hyperhidrosis in the neck and aversion to wind[頸多汗惡風], hyperhidrosis in the head and face and aversion to wind[頭面多汗惡風], cannot stopping the sweating under head[頭以下汗出不可止], make a person sweat to one's feet[令汗出至足], sweating like escaping[漯漯然汗出], sweating like soaking[汗出如浴], sweating become moist[汗出溱溱], hardly escaping sweat[汗大泄], escaping sweating[漉漉之汗], sweat moisten the pores [汗濡玄府], ceaseless sweating like pouring[汗注不休] sweating like pouring and vexation[汗注煩心], damp with sweat[汗汗然], sweating spontaneously[汗且自出], removal of fever with sweat drying[熱去汗稀]. That can be divided into sweat region and sweat form. 2. There are detailed explanations of the principle of perspirations caused by hot weather, hot food, hard working and meeting damp pathogen. 3. There are some explanations of the principle of removing fever due to the excessive heat from internal and external body through sweating by replenishing the body fluid. And many descriptions about overcoming the febrile disease by dropping temperature through sweating and many diaphoresis for curing. 4. There are some descriptions about five Jang organs perspirations and attachment of five mucous body fluid to five Jang organs. 5. There are pathogenic progresses after sweating affected by the Six Atmospheric Influences and water. And detailed explanations of disease mechanism a sweat leading to another disease. 6. There are descriptions about various sweat absent situations.

• Journal of Plant Biotechnology
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• 제33권1호
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• pp.1-9
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• 2006

도처에 분포하는 peroxiredoxins (Prxs)은 세포 내 방어신호전달 과정에서 다양한 기능을 하는 것으로 나타났다. Prxs는 크게 typical 2-Cys Prx, atypical 2-Cys Prx와 1-Cys Prx의 세 부류로 분류되는데, 이것들은 cysteine 잔기의 수와 촉매기전에 따라 구분된다. 세 종류의 단백질 중, N-말단에 peroxidatic cysteine 잔기를 포함하는 typical 2-Cys Prx는 $H_2O_2$ 분해과정 동안 과산화물-의존적인 sulfenic acid로의 산화와 thiol-의존적 환원과정이 순환되어 일어난다. Sulfenic acid는 고농도의 $H_2O_2$와 Trx, Trx reductase와 NADPH를 포함하는 촉매 요소의 존재하에 cysteine sulfenic acid로 과산화 될 수 있다 과산화된 2-Cys Prx는 ATP 의존성 효소인 sulfiredoxin의 작용에 의해 천천히 환원된다. 세포가 강력한 산화나 열 충격 스트레스에 노출되면, 2-Cys Prx는 LMW 단백질에서 HMW complex로 구조를 변화시켜 peroxidase에서 chaperone으로 기능의 전환을 일으킨다. 2-Cys Prx의 C-말단 부분 역시 이러한 구조적 전환에 중요한 역할을 한다. 따라서, C-말단이 잘려진 단백질은 과산화가 되지 않고 단백질의 구조와 기능이 조절될 수 없다. 이러한 반응들은 활성 자리인 peroxidatic cysteine 잔기에 의해 일차적으로 유도되며, 그것은 세포에서 '$H_2O_2$ sensor' 로서 작용하다. 2-Cys Prx의 가역적인 구조와 기능 변화는 세포가 외부자극에 적응하는 수단으로 작용하며, 아마도 세포내 방어신호체계를 활성화 시키는 것으로 생각된다. 특히, chloroplast에 존재하는 식물 2-Cys Prx는 촉매반응 동안 주된 구조적인 변화를 나타내는 역동적인 단백질 구조를 가지고 있어서, 산화-환원 의존적으로 super-complex를 형성하고 가역적으로 thylakoid membrane에 부착한다.

• International Journal of Ocean System Engineering
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• 제2권3호
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• pp.185-194
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• 2012

A Macroscopic combination of two or more distinct materials is commonly referred to as a "Composite Material", having been designed mechanically and chemically superior in function and characteristic than its individual constituent materials. Composite materials are used not only for aerospace and military, but also heavily used in boat/ship building and general composite industries which we are seeing increasingly more. Regardless of the various applications for composite materials, the industry is still limited and requires better fabrication technology and methodology in order to expand and grow. An example of this is that the majority of fabrication facilities nearby still use an antiquated wet lay-up process where fabrication still requires manual hand labor in a 3D environment impeding productivity of composite product design advancement. As an expert in the advanced composites field, I have developed fabrication skills with the use of machinery based on my past composite experience. In autumn 2011, the Korea government confirmed to fund my project. It is the development of a composite sanding machine. I began development of this semi-robotic prototype beginning in 2009. It has possibilities of replacing or augmenting the exhaustive and difficult jobs performed by human hands, such as sanding, grinding, blasting, and polishing in most often, very awkward conditions, and is also will boost productivity, improve surface quality, cut abrasive costs, eliminate vibration injuries, and protect workers from exposure to dust and airborne contamination. Ease of control and operation of the equipment in or outside of the sanding room is a key benefit to end-users. It will prove to be much more economical than normal robotics and minimize errors that commonly occur in factories. The key components and their technologies are a 360 degree rotational shoulder and a wrist that is controlled under PLC controller and joystick manual mode. Development on both of the key modules is complete and are now operational. The Korean government fund boosted my development and I expect to complete full scale development no later than 3rd quarter 2012. Even with the advantages of composite materials, there is still the need to repair or to maintain composite products with a higher level of technology. I have learned many composite repair skills on composite airframe since many composite fabrication skills including repair, requires training for non aerospace applications. The wind energy market is now requiring much larger blades in order to generate more electrical energy for wind farms. One single blade is commonly 50 meters or longer now. When a wind blade becomes damaged from external forces, on-site repair is required on the columns even under strong wind and freezing temperature conditions. In order to correctly obtain polymerization, the repair must be performed on the damaged area within a very limited time. The use of pre-impregnated glass fabric and heating silicone pad and a hot bonder acting precise heating control are surely required.

• 대한의용생체공학회:학술대회논문집
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• 대한의용생체공학회 1992년도 춘계학술대회
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• pp.27-47
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• 1992

Engineers have developed new instruments that aid in diagnosis and therapy Ultrasonic imaging has provided a nondamaging method of imaging internal organs. A complex transducer emits ultrasonic waves at many angles and reconstructs a map of internal anatomy and also velocities of blood in vessels. Fast computed tomography permits reconstruction of the 3-dimensional anatomy and perfusion of the heart at 20-Hz rates. Positron emission tomography uses certain isotopes that produce positrons that react with electrons to simultaneously emit two gamma rays in opposite directions. It locates the region of origin by using a ring of discrete scintillation detectors, each in electronic coincidence with an opposing detector. In magnetic resonance imaging, the patient is placed in a very strong magnetic field. The precessing of the hydrogen atoms is perturbed by an interrogating field to yield two-dimensional images of soft tissue having exceptional clarity. As an alternative to radiology image processing, film archiving, and retrieval, picture archiving and communication systems (PACS) are being implemented. Images from computed radiography, magnetic resonance imaging (MRI), nuclear medicine, and ultrasound are digitized, transmitted, and stored in computers for retrieval at distributed work stations. In electrical impedance tomography, electrodes are placed around the thorax. 50-kHz current is injected between two electrodes and voltages are measured on all other electrodes. A computer processes the data to yield an image of the resistivity of a 2-dimensional slice of the thorax. During fetal monitoring, a corkscrew electrode is screwed into the fetal scalp to measure the fetal electrocardiogram. Correlations with uterine contractions yield information on the status of the fetus during delivery To measure cardiac output by thermodilution, cold saline is injected into the right atrium. A thermistor in the right pulmonary artery yields temperature measurements, from which we can calculate cardiac output. In impedance cardiography, we measure the changes in electrical impedance as the heart ejects blood into the arteries. Motion artifacts are large, so signal averaging is useful during monitoring. An intraarterial blood gas monitoring system permits monitoring in real time. Light is sent down optical fibers inserted into the radial artery, where it is absorbed by dyes, which reemit the light at a different wavelength. The emitted light travels up optical fibers where an external instrument determines O2, CO2, and pH. Therapeutic devices include the electrosurgical unit. A high-frequency electric arc is drawn between the knife and the tissue. The arc cuts and the heat coagulates, thus preventing blood loss. Hyperthermia has demonstrated antitumor effects in patients in whom all conventional modes of therapy have failed. Methods of raising tumor temperature include focused ultrasound, radio-frequency power through needles, or microwaves. When the heart stops pumping, we use the defibrillator to restore normal pumping. A brief, high-current pulse through the heart synchronizes all cardiac fibers to restore normal rhythm. When the cardiac rhythm is too slow, we implant the cardiac pacemaker. An electrode within the heart stimulates the cardiac muscle to contract at the normal rate. When the cardiac valves are narrowed or leak, we implant an artificial valve. Silicone rubber and Teflon are used for biocompatibility. Artificial hearts powered by pneumatic hoses have been implanted in humans. However, the quality of life gradually degrades, and death ensues. When kidney stones develop, lithotripsy is used. A spark creates a pressure wave, which is focused on the stone and fragments it. The pieces pass out normally. When kidneys fail, the blood is cleansed during hemodialysis. Urea passes through a porous membrane to a dialysate bath to lower its concentration in the blood. The blind are able to read by scanning the Optacon with their fingertips. A camera scans letters and converts them to an array of vibrating pins. The deaf are able to hear using a cochlear implant. A microphone detects sound and divides it into frequency bands. 22 electrodes within the cochlea stimulate the acoustic the acoustic nerve to provide sound patterns. For those who have lost muscle function in the limbs, researchers are implanting electrodes to stimulate the muscle. Sensors in the legs and arms feed back signals to a computer that coordinates the stimulators to provide limb motion. For those with high spinal cord injury, a puff and sip switch can control a computer and permit the disabled person operate the computer and communicate with the outside world.

• 전기전자학회논문지
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• 제23권4호
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• pp.1461-1464
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• 2019

본 논문에서는 위치추적과 방사선 측정이 가능한 일체형 방사선 피폭 방호 소방관 인명구조 경보기를 위한 임베디드 보드 개발을 제안한다. 제안하는 방사선 피폭 방호 소방관 인명구조 경보기의 임베디드 보드는 신호 처리부, 통신부, 전원부, 메인 제어부 등으로 구성된다. 신호 처리부에서는 차폐설계, 노이즈 저감 기술 및 전자파 차감 기술 등을 적용한다. 통신부에서는 WiFi 방식을 사용하여 통신하도록 설계한다. 메인 제어부에서는 전력 소모를 최소한으로 줄이고 작고 밀도가 높으면서도 낮은 발열성을 통하여 높은 고성능 시스템을 구성한다. 일체형 방사선 피폭 방호 소방관 인명구조 경보기를 위한 임베디드 보드는 재난 및 화재현장 등 열악한 환경에 노출되어 운영하는 장비이므로 방수와 내열성을 고려한 외형도 설계 및 제작을 한다. 제안된 일체형 방사선 피폭 방호 소방관 인명구조 경보기를 위한 임베디드 보드의 효율을 판단하기 위하여 공인시험기관에서 실험하였다. 방수 등급은 소방관용 장비의 특성 상 재해 현장에서 물에 의한 침수 시에도 안정적인 성능을 유지할 수 있는 IP67 등급을 달성하였다, 동작 온도는 재해현장에서의 폭넓은 환경변화에 대응할 수 있는 -10℃~50℃의 범위에서 측정이 되었다. 배터리 수명은 붕괴사고 등의 비상 재난 상황에 대처할 수 있는 1회 충전 후 144시간 사용 가능함이 측정되었다. PCB를 포함한 최대 통신 거리는 재난 상황 시 지휘통제 차량과의 직선거리에서 기존의 50m보다 넓은 범위인 54.2m에서 작동하는 것이 측정되었다. 따라서 일체형 방사선 피폭 방호 소방관 인명구조 경보기를 위한 임베디드 보드의 그 효용성이 입증되었다.

• 환경생물
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• 제32권1호
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• pp.58-67
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• 2014

우리나라는 겨울철에 미세조류가 성장하기에 적합하지 않은 기후조건을 가진다. 따라서, 차세대 바이오매스의 공급원료로서의 미세조류 배양을 겨울철에 이룩하기는 쉽지 않다. 본 연구에서는 적은 에너지를 이용하여 미세조류가 성장이 불가한 영외환경에서 미세조류를 성장시키기 위해서, 삼중막의 비닐하우스를 설치하였다. 또한 투명한 아크릴 재질로 수조를 제작하여 빛을 수조의 모든 면에서 받을 수 있게 함으로써, 빛의 이용성을 최대화하였다. 6가지의 다양한 실험조건을 설정하여 겨울철 영하의 기후조건에서 최소한의 비용으로 하수종말처리장 폐수를 사용하여 미세조류를 배양하였다. 또한 미세조류 바이오매스를 증가시킴과 동시에 환경오염의 원인이 될 수 있는 영양염류 성분 중 질소를 최대 92%, 인을 최대 99%까지 제거시켰다. 본 연구에서 바이오디젤의 원료가 될 수 있는 가장 주된 지방산은 리놀렌산(C18 : 3n3)으로 총 지질량의 최대 61%까지 차지했다. 지방산의 생산성은 2.4 g $m^{-2}day^{-1}$이었다. 결론적으로, 본 연구를 통하여 차세대 바이오매스 생산을 위한 미세조류 배양을 저온 시기에서도 이룩하였으며, 그에 따른 폐수처리에서도 좋은 성과를 이루었다.