암거배수(暗渠排水)에 의(依)한 저온지리용(低溫地利用)에 관(關)한 연구(硏究) (I) (PVC 관(管)을 사용(使用)할 경우(境遇))

주재홍 ( Jae Hong Chou ) 한국농공학회 1968 韓國農工學會誌 : 전원과 자원 Vol.10 No.3

Althow underdrainage has been studied for long time, it is the first attempt in Korea to execute using PVC(Plastic) suction pipes in the low and wet field. First, an execution plot and a control plot were set, and the drainage method and soil temprature in the excuted plot have been examined. The growth of crops and the yeild, the improvement of soil and water quality of irrigation are to be dealt during the next experimental period. The experimental method and the results obtained through the experimentations are as follows: Method 1) Depth: 1meter. interval: 5meters Trench was performed by labor. 2) PVC(plastic) sucking pipe filters were wound with glass nylon. 3) Two. horizontal looks were set in the 5a. plot. Results 1) The soil temprature in the excuted plot went up by 1.2℃ in average than in the control plot during the two years(1966-67) of irrigation period, and the maximum temprature raised a day was 3℃ (2) The under ground water level in the executed plot went down by 45cm. 3) The yield increases were 64% in potato, 57% in barley, and 21% in rice. The yield, soil, and the quality of irrigated water will be experimented during the next experemental period.

Market in Medical Devices of Blockchain-Based IoT and Recent Cyberattacks

Shih-Shuan WANG(Shih-Shuan WANG),Hung-Pu (Hong-fu) CHOU(Hung-Pu (Hong-fu) CHOU),Aleksander IŻEMSKI(Aleksander IŻEMSKI ),Alexandru DINU(Alexandru DINU ),Eugen-Silviu VRĂJITORU(Eugen-Silviu VRĂJITORU ) 한국인공지능학회 2023 인공지능연구 (KJAI) Vol.11 No.2

The creativity of thesis is that the significance of cyber security challenges in blockchain. The variety of enterprises, including those in the medical market, are the targets of cyberattacks. Hospitals and clinics are only two examples of medical facilities that are easy targets for cybercriminals, along with IoT-based medical devices like pacemakers. Cyberattacks in the medical field not only put patients' lives in danger but also have the potential to expose private and sensitive information. Reviewing and looking at the present and historical flaws and vulnerabilities in the blockchain-based IoT and medical institutions' equipment is crucial as they are sensitive, relevant, and of a medical character. This study aims to investigate recent and current weaknesses in medical equipment, of blockchain-based IoT, and institutions. Medical security systems are becoming increasingly crucial in blockchain-based IoT medical devices and digital adoption more broadly. It is gaining importance as a standalone medical device. Currently the use of software in medical market is growing exponentially and many countries have already set guidelines for quality control. The achievements of the thesis are medical equipment of blockchain-based IoT no longer exist in a vacuum, thanks to technical improvements and the emergence of electronic health records (EHRs). Increased EHR use among providers, as well as the demand for integration and connection technologies to improve clinical workflow, patient care solutions, and overall hospital operations, will fuel significant growth in the blockchain-based IoT market for linked medical devices. The need for blockchain technology and IoT-based medical device to enhance their health IT infrastructure and design and development techniques will only get louder in the future. Blockchain technology will be essential in the future of cybersecurity, because blockchain technology can be significantly improved with the cybersecurity adoption of IoT devices, i.e., via remote monitoring, reducing waiting time for emergency rooms, track assets, etc. This paper sheds the light on the benefits of the blockchain-based IoT market.

A Morphological Study on Head and Face According to The Sa-Sang Constitution

Chou,Yong-Jin,Lee,Sang-yong,Song,ll-byung,Kim,Jong-won,Choi,Chang-seok,Ko,Byung-hee,Lee,Eui-ju,Seo,Jeong-suk,Hong,Suck-chull INSTITUTE OF ORIENTAL MEDICINE KYUNG-HEE UNIVERSIT 1996 JOURNAL OF ORIENTAL MEDICINE Vol.1 No.1

<Objectives> This research is a study about constitutional diagnosis through the external appearances as a basic principle, and it is for finding shape differences of the face and head, according to the Sasang constitution <Methods> We have collected 170 cases of patients of the Sasang Constitutional Department, including employees of the Kyung-Hee Medical Center and took pictures of the frontal view, lateral view, oblique view, and moire of face and measured heights, T-projects, breadths of face with 'The Measurement of R. Martin'. We analyzed shape differences of the face according to the Sasang constitution with certain results <Results> We got the morphologic characteristics of the head and face, according to the Sasang constitution <Conclusion> The characteristics of taeumin were that values of height, breadth, T-projected were maximum, in general, and the subnasal height and lower face area were maximum. Taeumin's pronasal T-projected and subnasal T-projected were minimum, and taeumin was depressed in the middle face and nasal part. In the ratio of breadth and T-projected of taeumin, T-projected was minimum. The area of nose, alare, middle face and lower face was maximum, and the area of the eye was minimum. Taeumin had minimum eyebrow declination and projected jaw and minimum diameter of cornea. Taeumin's forehead was projected to the right in general. The characteristics of soeumin were that T-projected was minimum in general and that subnasal height and lower face area were minimum. And pronasal T-projected and subnasal T-projected were minimum, so soeumin's facial shape was flat. The area of eye, mouth, forehead were maximum and the area of nose, alare, middle face, lower face were minimum. Taeumin had maximum eyebrow declination and a minimum projected mouth, and a flat jaw and maximum eye breadth. Soeumin's forehead was projected to the left in general. The characteristics of Soyangin were that height values were minimum in general and that ratios of T-projected points to pupulare T-projected were maximum, so the soyangin's facial shape was the most projected. Mouth area was minimum and was most projected. Forehead inclination was minimum and the forehead was projected to the left in general. Soyangin's eye breadth was minimum and middle face was projected. According to the results of a discriminant analysis, the accuracy of probability of discriminant was 85.58% in total, and taeumin was 90.5%, soeumin was 70.8%, soyangin was 89.5%. The classification accuracy was 49.03%, and the discrimination function was significant objectively.

Experimental investigation of mechanical properties of UV-Curable 3D printing materials

Hong, Sung Yong,Kim, Ye Chan,Wang, Mei,Kim, Hyung-Ick,Byun, Do-Young,Nam, Jae-Do,Chou, Tsu-Wei,Ajayan, Pulickel M.,Ci, Lijie,Suhr, Jonghwan Elsevier 2018 Polymer Vol.145 No.-

<P><B>Abstract</B></P> <P>More recently, three dimensional printing (3D Printing), also known as an additive manufacturing (AM), has been highlighted since it shows a great promise to realize almost any three dimensional parts or structures with computer aided design (CAD). Several different processes are available for 3D printing, which includes fused deposition modeling, selective laser sintering, stereolithography, photopolymerization, and etc. In particular, considerable attention is paid to the 3D printing technique with photopolymerization due to their high resolutions. Unfortunately, the 3D printed products with photopolymerization however possess poor mechanical properties. Understanding of this should be necessary for the advantages of the 3D printing to be fully realized. Here, this study experimentally investigates the mechanical properties of the 3D printed photopolymer through thermomechanical analysis and tensile testing. In this study, it is found that the printed specimens are not fully cured after the 3D printing with photopolymerization. DiBenedetto equation is employed to better understand the relationship between the curing status and tensile properties. In addition to the poor mechanical properties, anisotropic and size dependent tensile properties of the 3D printed photopolymers are also observed. Electron beam treatment is used to ensure the cure of the 3D printed photopolymer and the corresponding tensile properties are characterized and investigated.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The interesting mechanical behaviors of 3D printed photopolymer were investigated. </LI> <LI> Anisotropic and size dependent tensile properties are studied by thermal analysis. </LI> <LI> Modeling with DiBenedetto equation was employed to understand curing degree. </LI> <LI> Electron beam treatment was chosen to ensure full cure of 3D printed photopolymer. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

暗渠排水에 依한 低濕地 利用에 關한 硏究 (1) : PVC管을 使用할 境遇 Using PVC Pipe

周載洪 진주산업대학교 1968 論文集 Vol.1 No.-

本 實驗을 實施함에 있어서 圃場 10a를 施工區 5a, 對比區 5a로 나누고 施工區는 人力으로 床堀을 하는데 깊이 1m, 거리 5m, 傾斜 200分之1로 하고 管經 4.5㎝의 Plastic製 吸水管(Glass nylon filter卷)을 施工區 5a에 Pipe 全 所要量이 100m(2.5m, 40本)이며, 排水調節用水閘은 2個所 設置하여 灌漑期에는 每日 午後 5時에 開放하고 午前 6時에 닫어 地溫을 測定한 結果, 平均 1.2℃ 上昇하고 非灌漑期는 麥類및 著類栽培를 爲해서 水閘을 終日 열어 排水의 目的을 達成시켜 著類및 麥類栽培가 全然不可能한 低濕地가 栽培可能하였으나 排水와 地??外, 生育, 收量, 土壤, 灌漑水質 調査는 第二次 試驗에서 取扱하기로 하겠다. Although underdrainage has been studied for a long time, it is the first attempt in Korea to execute using PVC (plastic) suction pipes in the low and wet field. First, an execution plot and a control plot were set, and the drainage method and soil temprature in the excuted plot have been examined. The growth of crops and the yeild, the improvement of soil and water quality of irrigation are to be dealt during the next experimental period. The experimental method and the results obtained through the experimentations are as follows: Method 1)depth: 1meter.interval: 5meters Trench was perfomed by labor. 2)PVC(plastic) sucking pipe filters were wound with glass nylon. 3)Two horizontal locks were set in the 5 a. plot. Results 1)The soil temprature in the executed plot went up by 1.2℃ in average than in the control plot during the two years(1966-67) of irrigation period, and the maximum temprature raised a day was 3℃. 2)The Under ground water level in the executed plot went down by 45㎝. 3)The yield increases were 64% in potato, 57% in barley, and 21% in rice. The yield, soil, and the quality of irrigated water will be experimented during the next experimental period.

Validation of a Palliative Prognostic Index to Predict Life Expectancy for Terminally Ill Cancer Patients in a Hospice Consultation Setting in Taiwan

Cheng, Wei-Hong,Kao, Chen-Yi,Hung, Yu-Shin,Su, Po-Jung,Hsieh, Chia-Hsun,Chen, Jen-Shi,Wang, Hung-Ming,Chou, Wen-Chi Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.6

Background: The aim of our study was to assess the practical utility of the palliative prognostic index (PPI) as a prognostic tool used by nurse specialists in a hospice consultation setting in Taiwan. Methods: In total, 623 terminal cancer patients under hospice consultation care from one medical center in northern Taiwan were enrolled between January 1 and June 30, 2011. PPI was assessed by a nurse specialist at first hospice consultation and patients categorized into groups by prognosis (good, intermediate, poor). Patient survival was analyzed retrospectively to determine significance of between-group differences. Results: By PPI sum score, 37.2% of patients were in the good prognosis group, 18% in the intermediate prognosis group and 44.8% in the poor prognosis group. The death rates were 56%, 81.2% and 89.6% and median survivals were 76, 18 and 7 days, respectively. The hazard ratio was 0.19 (95% confidence interval [CI] 0.10-0.24, p<0.001) for the poor versus good prognosis group and 0.54 (95% CI 0.43-0.69, p<0.001) for the poor versus intermediate prognosis group. The sensitivity and specificity for the poor prognosis group was 66% and 71%; the positive predictive value and negative predictive value were 81% and 52%, respectively, to predict patient death within 21 days (area under the curve of the receiver operating characteristic was 0.68). Conclusions: Assessment by PPI can accurately predict survival of terminal cancer patients receiving hospice consultation care. PPI is a simple tool and can be administered by nurse members of hospice consultation teams.

트랙터 動力費 推定에 對한 硏究

鄭鳳守,周載洪 진주산업대학교 1968 論文集 Vol.2 No.-

1.營農規模上 트랙터를 利用할 수 있는 農家는 最少 3ha이며, 이 以下線인 小農家에서는 主로 他農家 作業이나 또는 運搬에 力點을 두고, 年間使用 時間數를 높혀 經濟線에 도달할려고 努力하고 있음을 알았다. 2.年間 減價償却費는 25,710원으로 算出되었으며, 農夫들은 每年 저축하여 트랙터를 폐기할 때 新品을 購入할 수가 있도록 해야 한다. 3.修繕費에 있어서는 原價에 對해 平均 3.36%가 나타났으며, 農夫들의 運轉技述과 取扱如何에 따라 많은 差異가 있음을 알 수 있었다. 4.10a當 米作役畜費는 2,034원으로 나타났으며, 트랙터는 2.8ha의 面積을 가져야만 經濟的인 面에서 役畜費와 일치함을 알 수가 있었다. The object of this study is in the effective operating of the power tiller with estimating the expenses of power. In brief; 1)Estimating 7 years in limitting of the power tiller, the power tiller can be utilized 400 hours a year. 2)Over 3ha of farm land can offered to utilize it, for they can get good income with it. 3)It`s depreciation a year is counted 25, 710 won, the amount of which is to be saved in each year. counted 67 won per hour.

動力耕耘機의 性能에 關한 硏究

鄭鳳守,周載洪 진주산업대학교 1968 論文集 Vol.2 No.-

This was studied on working efficiency of power tiller (CT-83.N-6). Working power of power tiller(average horse power 6Hp. maximum horse power 8Hp) was operated three times in plow work(depth 15 cm, Cross size 60cm), which was chosen on clay loam field. Resuelt as following. ①The efficiency of power tiller`s was observed 2∼2.5 times to animal power(Cow), and needed 2l of fuel p/h. ②High speed on read was observed 14.6 per hour. ③Gravity position of power tiller is apt to decline where the main clutch was atta-ched, so it needs much attention in operating.

Non-invasive acceleration-based methodology for damage detection and assessment of water distribution system

Shinozuka, Masanobu,Chou, Pai H.,Kim, Sehwan,Kim, Hong Rok,Karmakar, Debasis,Fei, Lu Techno-Press 2010 Smart Structures and Systems, An International Jou Vol.6 No.5

This paper presents the results of a pilot study and verification of a concept of a novel methodology for damage detection and assessment of water distribution system. The unique feature of the proposed noninvasive methodology is the use of accelerometers installed on the pipe surface, instead of pressure sensors that are traditionally installed invasively. Experimental observations show that a sharp change in pressure is always accompanied by a sharp change of pipe surface acceleration at the corresponding locations along the pipe length. Therefore, water pressure-monitoring can be transformed into acceleration-monitoring of the pipe surface. The latter is a significantly more economical alternative due to the use of less expensive sensors such as MEMS (Micro-Electro-Mechanical Systems) or other acceleration sensors. In this scenario, monitoring is made for Maximum Pipe Acceleration Gradient (MPAG) rather than Maximum Water Head Gradient (MWHG). This paper presents the results of a small-scale laboratory experiment that serves as the proof of concept of the proposed technology. The ultimate goal of this study is to improve upon the existing SCADA (Supervisory Control And Data Acquisition) by integrating the proposed non-invasive monitoring techniques to ultimately develop the next generation SCADA system for water distribution systems.

Radiofrequency ablation of benign thyroid nodules: recommendations from the Asian Conference on Tumor Ablation Task Force

하은주,백정환,Ying Che,Chou Yi-Hong,Nobuhiro Fukunari,김지훈,Wei-Che Lin,Le Thi My,나동규,Lawrence Han Hwee Quek,Ming-Hsun Wu,Koichiro Yamakado,Jianhua Zhou 대한초음파의학회 2021 ULTRASONOGRAPHY Vol.40 No.1

Radiofrequency ablation (RFA) is a thermal ablation technique widely used for the management of benign thyroid nodules. To date, five academic societies in various countries have reported clinical practice guidelines, opinion statements, or recommendations regarding the use of thyroid RFA. However, despite some similarities, there are also differences among the guidelines, and a consensus is required regarding safe and effective treatment in Asian countries. Therefore, a task force was organized by the guideline committee of the Asian Conference on Tumor Ablation with the goal of devising recommendations for the clinical use of thyroid RFA. The recommendations in this article are based on a comprehensive analysis of the current literature and the consensus opinion of the task force members.