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Real-Time Cattle Action Recognition for Estrus Detection
( Eui-ju Heo ),( Sung-jin Ahn ),( Kang-sun Choi ) 한국인터넷정보학회 2019 KSII Transactions on Internet and Information Syst Vol.13 No.4
In this paper, we present a real-time cattle action recognition algorithm to detect the estrus phase of cattle from a live video stream. In order to classify cattle movement, specifically, to detect the mounting action, the most observable sign of the estrus phase, a simple yet effective feature description exploiting motion history images (MHI) is designed. By learning the proposed features using the support vector machine framework, various representative cattle actions, such as mounting, walking, tail wagging, and foot stamping, can be recognized robustly in complex scenes. Thanks to low complexity of the proposed action recognition algorithm, multiple cattle in three enclosures can be monitored simultaneously using a single fisheye camera. Through extensive experiments with real video streams, we confirmed that the proposed algorithm outperforms a conventional human action recognition algorithm by 18% in terms of recognition accuracy even with much smaller dimensional feature description.
Container Tracking System at Multimodes
Eui-Seok Byeon(변의석),Sang-Hun Kang(강상훈) 한국산업경영시스템학회 2004 한국산업경영시스템학회 학술대회 Vol.2004 No.춘계
The purpose of carrier tracking and tracing is to achieve more information over shipments via carrying in mobile business. At multimodes, especially consignor wants to be aware of the exact situation and position of goods. As an innovative business model, we present CGPS(Carrier Global Positioning System) scheme using LEO(Low Earth Orbital) satellite. The LEO collects the data periodically and sends to the web server, and eventually customer"s PC or PDA. This provides shipping company or freight forwarder with more robust information such as door status, container inside condition, etc.
Solitary fibrous tumor/hemangiopericytoma: treatment results based on the 2016 WHO classification
Sung, Kyoung Su,Moon, Ju Hyung,Kim, Eui Hyun,Kang, Seok-Gu,Kim, Se Hoon,Suh, Chang-Ok,Kim, Sun Ho,Lee, Kyu-Sung,Chang, Won Seok,Chang, Jong Hee Journal of Neurosurgery Publishing Group 2019 Journal of Neurosurgery Vol.130 No.2
<B>OBJECTIVE</B><P>Solitary fibrous tumor/hemangiopericytoma (SFT/HPC) is a new combined entity for which a soft-tissue-type grading system, ranging from grades I to III, has been introduced in the 2016 WHO classification of tumors of the CNS. The results of the treatment of this new disease entity require evaluation.</P><B>METHODS</B><P>The authors retrospectively reevaluated the pathological findings and medical records of patients with SFT/HPC. This study included 60 patients (27 men and 33 women, median age 42.5 years, range 13-69 years) treated at Severance Hospital between February 1981 and February 2016. Four, 40, and 16 patients were categorized as having SFT/HPC grades I, II, and III, respectively. Among these patients, SFTs diagnosed in 7 patients were regraded as grades I (n = 4), II (n = 2), and III (n = 1).</P><B>RESULTS</B><P>The median overall survival (OS) was 73.2 months (range 1.4-275.7 months), and the progression-free survival (PFS) after the first operation was 53.8 months (range 1.4-217.7 months). Six patients (10%) showed extracranial metastasis during a median period of 103.7 months (range 31.9-182.3 months). Nineteen patients (31.7%) presented with tumor recurrences. The patients in the grade III group had shorter PFS and OS, as well as a shorter period to extracranial metastasis, compared with patients in the grade II group. In the grade II group, patients who underwent gross-total resection showed longer PFS than those who underwent subtotal resection; however, there was no difference in OS. Patients who underwent adjuvant radiation therapy (RT) after surgery had longer PFS compared with that of patients who did not undergo adjuvant RT.</P><B>CONCLUSIONS</B><P>The SFT/HPC grade I group showed a relatively benign course compared with those of the other groups. The grade III group presented a course with a more aggressive nature than that of the grade II group. In the grade II group, the extent of resection and adjuvant RT was significantly associated with longer PFS. The long-term follow-up and periodic systemic evaluation are mandatory to detect systemic metastasis.</P>
Kang, Tae Eui,Choi, Joonhyeong,Cho, Han-Hee,Yoon, Sung Cheol,Kim, Bumjoon J. American Chemical Society 2016 Macromolecules Vol.49 No.6
<P>The backbone composition of conjugated copolymers is of great importance in determining the conjugated structure and intermolecular assembly and in manipulating their optical, electrochemical, and electronic properties. However, limited attention has been directed at controlling the backbone composition of donor acceptor (D-A) type low bandgap polymers. Herein, we developed a series of D-A random copolymers (P(BDTT-r-DPP)) composed of different compositions of electron-rich (D) thienyl-substituted benzo[1,2-b:4,5-b']dithiophene (BDTT) and electron-deficient (A) pyrrolo[3,4-c]pyrrole-1,4-dione (DPP). The optical and electrical properties of D-A random copolymers could be controlled by tuning the ratios of BDTT to DPP (4:1, 2:1, 1:1, 1:2, and 1:4) in the polymer backbone; an increase in BDTT resulted in increased absorption in the range of 400-600 nm and a lower-lying highest occupied molecular orbital energy level, while a higher proportion of DPP induced stronger absorption in the range of 700-900 nm. The P(BDTT-r-DPP) copolymer with a D:A ratio of 2:1 produced the highest power conversion efficiency (PCE) of 5.63% in the polymer solar cells (PSCs), which outperformed the D-A alternating copolymer, P(BDTT-alt-DPP) (1:1)-based PSCs (PCE = 5.03%), because of the improved light absorption and open-circuit voltage. Thus, we highlight the importance of developing random copolymers with controlled D:A compositions for optimizing their optoelectronic properties and performances of PSCs. Also, we compared the polymer packing structure and the electrical properties between the P(BDTT-r-DPP) and P(BDTT-alt-DPP) copolymers and developed a quantitative understanding of the effect of the D:A monomer sequence on the structural, electrical, and photovoltaic properties of the D-A copolymers.</P>
Sang-Yun Lee,Eui-Jun Min,Hyo-Jeong Yoon,Kanphassorn Wimonmuang,Hee-Kyoung Kang,Young-Sang Lee 한국식품영양과학회 2021 한국식품영양과학회 학술대회발표집 Vol.2021 No.10
The fruits of Prunus mume containing high organic acid is a well-being food traditionally used at home and widely industrialized in Korea. Seeds of Prunus mume, however, also contain toxic cyanide called ‘amygdalin’ which may cause headache, food poisoning and even death. To develop a rapid and efficient analysis method to quantify amygdalin content, Prunus mume seeds were extracted in MeOH under different temperature (25-70℃), duration (10-240 min), multiple extraction (1-2 times) and filtration conditions and resultant extraction efficiencies were compared. Optimized analysis conditions were as follows: 100 mg of dried and pulverized seed were extracted in 10 mL MeOH at 60℃ for 30 min, filtered through Na2SO4, concentrated by using a rotary evaporator, and hexane-water solvent partitioning, collected water layer volume was adjusted to 20 mL prior to injection into an HPLC. Validation of developed method exhibited acceptable linearity (R²=0.9999, 25-500 ppm), accuracy (87-112%, recovery), repeatability (3.8%, RSD), reproducibility (3.6% RSD) and limit of detection (LOD) and quantification (LOQ) were 0.28 ppm and 0.84 ppm, respectively.
Malignant Sertoli cell tumor in Shih Tzu dog
Kang, Sang-Chul,Yang, Hyoung-Seok,Jung, Ji-Youl,Jung, Eun-Hye,Lee, Hee-Chun,Hwang, Eui-Kyung,Kim, Jae-Hoon The Korean Society of Veterinary Science 2011 大韓獸醫學會誌 Vol.51 No.2
Malignant Sertoli cell tumor was diagnosed in a 5-year-old male Shih Tzu dog. Clinical features of the dog were anorexia, urinary incontinence, constipation, anemia, alopecia, and epistaxis. The dog also had unilateral cryptorchid testis in the abdomen. Several abdominal and thoracic masses were identified on radiography. Grossly, the cryptorchid testicular mass was markedly enlarged to 8 cm in diameter. On cut surface, firm and well demarcated milk-white neoplastic areas were irregularly separated by white fibrous bands. Histologically, the testicular mass was diagnosed as tubular pattern Sertoli cell tumor. In addition, abdominal and mediastinal lymph nodes metastasis were found. Immunohistochemically, the tumor cells were strongly positive for vimentin and neuron specific enolase, but negative for S-100 and cytokeratin.