• Title, Summary, Keyword: mouse

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Finger Detection Algorithm For Computer Mouse Control

  • Rodrigue, Gendusa Tulonge;Lee, Eung-Joo
    • Journal of Korea Multimedia Society
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    • v.20 no.4
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    • pp.671-685
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    • 2017
  • We propose a finger detection algorithm for computer mouse control to control the most commonly actions of a computer mouse(left, right and double click, scroll up and down then we add open and close, minimize and maximize a window, control the mouse.) We use a built-in web camera to control the mouse tasks. We detected, segment, then recognize the hand in our previous papers [1, 2]. The user will be able to interact with the computer with the number of fingers detected.

High-Resolution MRI Study on Mouse Brain Using Micro-Imaging (초고해상도 미세영상 기법을 이용한 Mouse 뇌의 자기공명영상 연구)

  • Han, Doug-Young;Yoon, Moon-Hyun;Choe, Bo-Young
    • Investigative Magnetic Resonance Imaging
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    • v.12 no.2
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    • pp.142-147
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    • 2008
  • Purpose : By using the micro-imaging unit modified from NMR spectrometer, the high resolution MRI protocols of finer than 100 micron in 5 minutes, is sought for mouse, which plays a central role in animal studies Materials and Methods : C57BL/6 mouse, lighter than 50 gram, is used for the experiments. The superconducting magnet is vertical type with 89 mm inner diameter at 4.9 Tesla. The diameter of rf-coil is 30 mm. Mostly used techniques are the fast spin echo and the gradient echo pulse sequence. Results : For 2D images, proton density and T2 weighted images are obtained and their optimum experimental variables were sought. Minute structure of mouse brain can be recognized and 3D brain image is also obtained additionally. 3D image will be useful particularly for the dynamic contrast study using various contrast agents. Conclusion : Like the case of human and other small animals, the high resolution of mouse brain is enough to recognize the minute structure of it. Recently, similar studies are reported domestically, but it seems only a beginning stage. Due to easiness of breeding/control, mouse MRI study will soon play a vital part in brain study.

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Skeleton formation of mouse fetus (마우스 태자의 골격 형성)

  • Kim, Bora;Oh, Seung-hyun;Yoon, Yeo-sung;Seong, Je Kyung
    • Korean Journal of Veterinary Research
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    • v.41 no.3
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    • pp.293-298
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    • 2001
  • This study was conducted to observe the bone and cartilage formation of mouse fetuses. Mouse litters were sacrificed at pregnant 14th and 18th day and examined for gross skeletal formation using cartilage and bone staining. We identified well developed cartilage formation at the 14th pregnant day in mouse fetus. However mouse fetus at the 14th pregnant day did not show any part of bone formation. At 18th pregnant day, mouse fetus showed well developed body shape and bone and cartilage formation. This results will provide basic information for the evaluation of mouse malfromation and impairment of skeleton formation. Further study will be needed for exact explanation of bone formation from cartilage portion.

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Differences in Density and Body Condition of Small Rodent Populations on Different Distance from Road

  • Hur, Wee-Haeng;Lee, Woo-Shin;Choi, Chang-Yong;Park, Young-Su;Lee, Chang-Bae;Rhim, Shin-Jae
    • Journal of Korean Society of Forest Science
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    • v.94 no.2
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    • pp.108-111
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    • 2005
  • This study was conducted to identify the road effect on small rodent populations within fragmented forest areas around the road from June to September 2002, in 9 study sites of Baekdugdaegan mountains, Korea. Two species of small rodents, Korean field mouse Apodemus peninsulae and striped field mouse Apodemus agrarius, were captured in this study. Korean field mouse preferred forest area, and striped field mouse generally has been found edge area around road. Mean body weight of Korean field mouse was significantly different, but that of striped field mouse was not between both distance from road. Korean field mouse is forest-dwelling species and their distribution is limited in forest area. In contrast, striped field mouse has wide distributional range around road. The effects of road is different in each small rodent species and their habitat preferences.

Effect of Garlic Powder of Mouse on the Stamina Improvement (마늘분말이 Mouse의 체력증강에 미치는 영향)

  • 박무현
    • Korean Journal of Plant Resources
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    • v.8 no.3
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    • pp.319-324
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    • 1995
  • The effect of garlic powder were investigated on health of stamina through mouse test. The swimming time of mouse was measured to determine the effect of garlic powder on stamina. When 2,000 and 200mg/kg of garlic were treated to mouse, swimming times were $124.8\pm61.1$ and $100.4\pm61min$, respectively. Those time were significantly longer than untreated control mouse which showed $67.1\pm15.5min$ of swimming time.

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Mouse Gesture Design Based on Mental Model (심성모형 기반의 마우스 제스처 개발)

  • Seo, Hye Kyung
    • Journal of Korean Institute of Industrial Engineers
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    • v.39 no.3
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    • pp.163-171
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    • 2013
  • Various web browsers offer mouse gesture functions because they are convenient input methods. Mouse gestures enable users to move to the previous page or tab without clicking its relevant icon or menu of the web browser. To maximize the efficiency of mouse gestures, they should be designed to match users' mental models. Mental models of human beings are used to make accurate predictions and reactions when certain information has been recognized by humans. This means providing users with appropriate information about mental models will lead to fast understanding and response. A cognitive response test was performed in order to evaluate whether the mouse gestures easily associate with their respective functional meanings or not. After extracting mouse gestures which needed improvement, those were redesigned to reduce cognitive load via sketch maps. The methods presented in this study will be of help for evaluating and designing mouse gestures.

Inhibition of Benzo[a]pyrene-Induced Mouse Forestomach Neoplasia by Astaxanthin-Containing Egg Yolks (Benzo[a]pyrene으로 유발한 Mouse Forestomach Tumor 생성에 대한 Astaxanthin 함유 난황의 효과)

  • Lee, Sang-H.;Park, Cherl-W.;Park, Won-S.;Lee, Young-C.;Choi, Eui-S.;Ha, Yeong-L.
    • Applied Biological Chemistry
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    • v.40 no.6
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    • pp.490-494
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    • 1997
  • Anticarcinogenic activity of astaxanthin-containing egg yolks (designate AEY) was investigated for benzo[a]pyrene (BP)-induced mouse forestomach tumorigenesis initiating regimen. Female ICR mouse (6-7 weeks of age) were housed in polycarbonated cages (5 mice/cage; 20 mice/treatment) in a humidity-and-temperature-controlled facility and permitted free access to water and food. One week later, four and 2 days prior to p.o. treatment with BP (2 mg/0.2 ml corn oil), mice were given 0.2 ml PBS containing 50 mg AEY, 100 mg AEY, 150 mg AEY, or 150 mg CEY. Control mice were only given 0.2 ml PBS. Three days later this sequence was repeated for a total of 4 times. Beginning with the first intubation and continuing thereafter, body weight and food intake were recorded once weekly. All surviving mice were sacrificed 24 weeks after the first dose of BP. Mice treated with AEY developed only about one third as many neoplasms/animal as mice in control or CEY-treated group (p<0.05). Reduction effect of tumor development by AEY was dependent upon doses applied. Tumor incidence was also reduced by AEY treatments, but significantly reduced only by 150 mg AEY treatment when compared to that by control or CEY. Food intake and body weight were not affected by AEY treatment. These results indicate that AEY inhibits tumorigenesis of mouse forestomach induced by BP.

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Anti-Angiogenic Activity of Mouse N-/C-terminal deleted Endostatin

  • Cho, Hee-Yeong;Kim, Woo-Jean;Lee, Sae-Won;Kim, Young-Mi;Choi, Eu-Yul;Park, Yong-Suk;Kwon, Young-Guen;Kim, Kyu-Won
    • BMB Reports
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    • v.34 no.3
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    • pp.206-211
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    • 2001
  • Endostatin, a proteolytic fragment of collagen XVIII, is a potent inhibitor of angiogenesis and the growth of several primary tumors. However, the opinions on the activity of endostatin derivatives deleted N- or C- terminal are still controversial. In this regard, we produced mouse endostatin and its derivatives in the prokaryotic system, and studied their anti-tumor activity. The [$^3H$]-thymidine incorporation assay demonstrated that N-terminal deleted mouse endostatin, and a C- and N-terminal deleted mutant, effectively inhibited the proliferation of human umbilical vein endothelial cells (HUVECs). The biological activity of endostatin was also shown by its in vivo anti-angiogenic ability on the chorioallantoic membrane (CAM) of a chick embryo. Treatment of $200\;{\mu}g$ of mouse endostatin, or N-terminal deleted mouse endostatin, inhibited capillary formation of CAM 45 to 71%, which is comparative to a 80% effect of positive control, $1\;{\mu}g$ of retinoic acid. An in vivo mouse tumor growth assay showed that N-terminal deleted mouse endostatin, and the N-/C-terminal deleted mutant, significantly repressed the growth of B16F10 melanoma cells in mice as did the full-length mouse endostatin. According to these results, N-and N-/C-terminal deleted mouse endostatins are the potent inhibitors of tumor growth and angiogenesis.

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Effects of Naetakcheonkeumsan and It’s Gamypang on the Lymphocytes and Cancer cells (內托千金散 및 그 加味方이 마우스의 免疫細胞 및 癌細胞에 미치는 效果)

  • Yang, Gi-ho;Jeong, Hyun-woo;Choi, Jung-hwa
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.13 no.1
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    • pp.44-59
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    • 2000
  • Naetakcheonkeumsan(NCS) was a drug that treated carbuncle and cellulitis. So, the purpose of this Study was to investigate effect of NCS on the anti-cancer and proliferation of lymphocytes in normal mouse group, L1210 cells-transplanted mouse group and anti-cancer drug (vincristine) 0.005mg/kg were injected mouse(Ll210 cells-transplanted) group. We used NCS extract with freeze-dried, 8wks-old male mice, and Ll210 cell lines for this Study, The proliferation of cells was tested using a colorimetric tetrazoliun assay(MTT assay). The results of this Study were obtained as follow ; Group C(NCS plus Rehmanniae Radix Preparat administered group) inhibited proliferaion of lymphocytes in normal mouse group and Ll210 cells transplanted mouse group. Group A(NCS administered group) and Group B(NCS plus Cervi pantotrichum Cornu administered group) inhibited proliferation of Ll210 cells in Ll210 cells-transplanted mouse group and anti-cancer drug were injected mouse(Ll210 cells-transplanted) group. Group C incresed proliferation of L1210 cells in L1210 cells-transplanted mouse group, but inhibited in anti-cancer drug(vincristine) 0.005mg/kg were injected mouse(L1210 cells-transplanted) group.

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