• Title/Summary/Keyword: Pan head

Search Result 64, Processing Time 0.025 seconds

Femto Slider Head/Disk Interaction Detection by Acoustic Emission and Natural Frequency Analysis

  • Hwang, Pyung;Galina Pan;Xuan Wu
    • KSTLE International Journal
    • /
    • v.6 no.1
    • /
    • pp.17-20
    • /
    • 2005
  • The object of the present work is the natural lre%uency analysis of femto slider, HeaHdisk interaction during starustop and constant speed were detected by using the acoustic emission (AE) test system. The frequency spectrum analysis wasperformed using the AE signal obtained during the head/disk interaction. The FFT (Fast Fourier Transform) analysis of the AEsignals is used to understand the interaction between the AE signal and the state of contact. Natural frequency analysis wasperformed using the ANSYS program. The results indicate acceptable accordance of finite element calculation results with theexperimental results.

Development of a Color Stereo Head-Eye System with Vergence (눈동자 운동이 가능한 컬러 스테레오 머리-눈 시스템의 개발)

  • HwangBo, Myung;You, Bum-Jae;Oh, Sang-Rok;Lee, Jong-Won
    • Proceedings of the KIEE Conference
    • /
    • 1998.07g
    • /
    • pp.2370-2372
    • /
    • 1998
  • Recently we have developed an active stereo head-eye system with vergence, name it KIST HECter(Head-Eye System with Colored Stero Vision), based on the analysis of human's neck and eye motion at visual behavior. Our HECter is a five degree-of-freedom system composed of pan and tilt motion in neck part and independent vergence motion of binocular cameras and commonly shared elevation axis in eye part. And stereo vision Provides two color image, which are processed by powerful each TMS32080 vision board. The shape and size are designed to be almost same as human face. The ability to vergence has significant importance and gives many beneficial merits. On its mechanical implementation we adapt a non-parallelogram 4-bar linkage mechanism since it provides high accuracy in transfering motion and enables compact and flexible design.

  • PDF

Development of Mosim Dining Table's Menu for Head House of Suwon Baek Clan and Injaegong Group in Jeonju (전주 수원백씨인재공파 종가 학인당의 '모심상' 상품화 연구)

  • Kim, Mi-Hye;Chung, Hae-Kyung
    • Journal of the Korean Society of Food Culture
    • /
    • v.29 no.6
    • /
    • pp.477-487
    • /
    • 2014
  • This study aimed to develop a new commercialization model for theindustrialization of head family food as a gentry families' complex food culture product. We tried to develop a head family food and propose a city sightseeing style's head family product by interviews with 'Hakindang' as the center, the head house of the Suwon Baek clan, and Injaegong group in Jeonjoo. Hakindang (in Jeonju) was confirmed as an improved model Korean-style house in the enlightenment period and the twentieth style modern head family as emerging capitalist. Hakindangsupported independence war funds in the Japanese colonial era and was widely known as gate of filial piety in Jeonju. Representative seasonal foods of Hakindang include pan-fried sweet rice cake with flower petals in the spring, hot spicy meat stew and polypus variabilis in summer, hanchae in autumn, and napa cabbage kimchi with salted flatfish seafood in the winter. When parents-in-law had a birthday, there were party noodles, sliced abalone stuffed with pine nuts, brass chafing dish, fish eggs, slices of blilde meat, and matnaji. Daily, there were mainly salted seafood, slices of raw fish, grilled short rib patties, braised fish, baked fish, syruped chestnut, grilled deodeok root, bean sprouts, radish preserved with salt, dongchimi, soy sauce-marinated horseshoe crab, butterbur, perilla seed stew, salted clams, raw bamboo shoot, agar, fried kelp, etc. The most basic virtue of the head family is filial duty, and they developed mosim dining as a representative food of Hakingdang's head family. The mosim menu is composed of 65% carbohydrates, 20% protein, and 15% fat because it is table for parents-in-law like more than 75 years old. The sensory evaluation showed a chewy texture that is easily swallowed.

Development of a rotation angle estimation algorithm of HMD using feature points extraction (특징점 추출을 통한 HMD 회전각측정 알고리즘 개발)

  • Ro, Young-Shick;Kim, Chul-Hee;Yun, Won-Jun;Yoon, Yoo-Kyoung
    • Proceedings of the IEEK Conference
    • /
    • 2009.05a
    • /
    • pp.360-362
    • /
    • 2009
  • In this paper, we studied for the real-time azimuthal measurement of HMD(Head Mounted Display) using the feature points detection to control the tele-operated vision system on the mobile robot. To give the sense of presence to the tele-operator, we used a HMD to display the remote scene, measured the rotation angle of the HMD on a real time basis, and transmitted the measured rotation angles to the mobile robot controller to synchronize the pan-tilt angles of remote camera with the HMD. In this paper, we suggest an algorithm for the real-time estimation of the HMD rotation angles using feature points extraction from pc-camera image.

  • PDF

Head Pose Estimation Based on Perspective Projection Using PTZ Camera (원근투영법 기반의 PTZ 카메라를 이용한 머리자세 추정)

  • Kim, Jin Suh;Lee, Gyung Ju;Kim, Gye Young
    • KIPS Transactions on Software and Data Engineering
    • /
    • v.7 no.7
    • /
    • pp.267-274
    • /
    • 2018
  • This paper describes a head pose estimation method using PTZ(Pan-Tilt-Zoom) camera. When the external parameters of a camera is changed by rotation and translation, the estimated face pose for the same head also varies. In this paper, we propose a new method to estimate the head pose independently on varying the parameters of PTZ camera. The proposed method consists of 3 steps: face detection, feature extraction, and pose estimation. For each step, we respectively use MCT(Modified Census Transform) feature, the facial regression tree method, and the POSIT(Pose from Orthography and Scaling with ITeration) algorithm. The existing POSIT algorithm does not consider the rotation of a camera, but this paper improves the POSIT based on perspective projection in order to estimate the head pose robustly even when the external parameters of a camera are changed. Through experiments, we confirmed that RMSE(Root Mean Square Error) of the proposed method improve $0.6^{\circ}$ less then the conventional method.

Tobacco Related Habits among First Degree Relatives of Patients Undergoing Surgery for Advanced Head and Neck Malignancies in India

  • Balagopal, P.G.;George, N.A.;Venugopal, A.;Mathew, A.;Ahamed, M. Iqbal;Sebastian, P.
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.13 no.1
    • /
    • pp.217-220
    • /
    • 2012
  • This prospective study records the tobacco related habits among the relatives of patients with advanced head and neck cancers who underwent both surgery and chemotherapy as part of their treatment from September 2009 to March 2010. A total of 200 relatives were interviewed (148 males and 52 females). 198 (99%) were aware of the fact that tobacco use can lead to cancer and 168 (84%) had any one of the habits. Smoking alone was reported in 36 (18%) individuals, pan chewing alone in 66 (33%) and multiple habits in 64 (32%). Alcohol and tobacco chewing alone was reported in one case each. There were change in habits following diagnosis of head and neck cancers among the relatives, 33 (16.5%) stopped their habits and smoking was reduced by 25% in 72 (36%)and by 50% in 63 (31.2%) individuals. However, 135 continued the habit even after the diagnosis of cancer in their relatives. Of note, 15 out of the 33 who quit the habit did it because of health advice given to them during the hospital visit.

G1/S-specific Cyclin-D1 Might be a Prognostic Biomarker for Patients with Laryngeal Squamous Cell Carcinoma

  • Zhang, Ying-Yao;Xu, Zhi-Na;Wang, Jun-Xi;Wei, Dong-Min;Pan, Xin-Liang
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.13 no.5
    • /
    • pp.2133-2137
    • /
    • 2012
  • Objective: To investigate the prognostic role of antigen KI-67 (Ki-67) and G1/S-specific cyclin-D1 (cyclin-D1) in patients with laryngeal squamous cell carcinoma (LSCC). Methods: Immunohistochemical staining (IHS) was used to determine the protein expression of Ki-67 and cyclin-D1 in LSCC tissues. Kaplan-Meier survival curves was calculated with reference to Ki-67 and cyclin-D1 levels. Results: Cyclin-D1 and Ki67 were expressed in the nuclei of cancer cells. Among the total of 92 cancer tissues examined by immunohistochemistry, 60 (65.22%) had cyclin-D1 overexpression and 56 (60.87%) had Ki67 overexpression. Cyclin-D1 overexpression is associated with the advanced stage of the cancer (P=0.029), but not with gender, age, stage of cancer, histological differentiation, anatomical site, smoking history and alcohol consumption history. Ki67 overexpression is not associated with the advanced stage, gender, age, histological differentiation, anatomical site, smoking history and alcohol consumption history. A statistically significant correlation was found between lymph node status and the expression of Ki67 (p = 0.025). Overexpression of cyclin-D1 was correlated to shorter relapse-free survival period (P<0.001). Conclusions: Overexpression of cyclin-D1 can be used as a marker to predict relapse in patients with LSCC after primary curative resection.

Role of Centromere Protein H and Ki67 in Relapse-free Survival of Patients after Primary Surgery for Hypopharyngeal Cancer

  • Wang, Jun-Xi;Zhang, Ying-Yao;Yu, Xue-Min;Jin, Tong;Pan, Xin-Liang
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.13 no.3
    • /
    • pp.821-825
    • /
    • 2012
  • Purpose: Centromere protein H (CENP-H) and Ki67 are overexpressed in some malignancies, but whether they are predictors of survival after primary resection for hypopharyngeal squamous cell carcinoma (HSCC) remains unknown. Methods: We assessed immunohistochemical expression of CENP-H and Ki67 in 112 HSCC specimens collected between March 2003 and March 2005 for analysis by clinical characteristics. The Kaplan-Meier method was used to analyze relapse-free survival and logistic multivariate regression to determine risk factors of relapse-free survival. Cholecystokinin octapeptide assays and flow cytometry were used to examine cell proliferation and apoptosis after siRNA inhibition of CENP-H in HSCC cells. Results: Overall, 50 (44.6%) HSCC specimens showed upregulated CENP-H expression and 69 (61.6%) upregulated Ki67. An increased CENP-H protein level was associated with advanced cancer stage and alcohol history (P=0.012 and P=0.048, respectively) but an increased Ki67 protein level only with advanced cancer stage (P=0.021). Increased CENP-H or Ki67 were associated with short relapse-free survival (P<0.001 or P=0.009, respectively) and were independent predictors of relapse-free survival (P=0.001 and P=0.018, respectively). siRNA knockdown of CENP-H mRNA inhibited cell proliferation and promoted cancer cell apoptosis in vitro. Conclusions: Upregulated CENP-H and Ki67 levels are significantly associated with short relapse-free survival in HSCC. These factors may be predictors of a relapsing phenotype in HSSC cases.

A Review on 『GuGeupGanIBang(救急簡易方)』 (『구급간이방(救急簡易方)』에 대한 소고(小考))

  • KIM, Dan Hee;Kim, Namil;Ahn, Sang-woo
    • The Journal of Korean Medical History
    • /
    • v.23 no.1
    • /
    • pp.43-54
    • /
    • 2010
  • 1. "GuGeupGanIBang(救急簡易方)" is a Korean annotation emergency treatment book made by scholars that were learned in medicine such as Naeuiwon(內醫院) head Yoo n Ho(尹壕) Seo Ha gun(西河君) Im Won jun(任元濬) GongJoChamPan(工曹參判) Park An sung(朴安性) Hanseongbu Jwayun(漢城府左尹) Gwon Geon(權健) SungRokDaeBuHaengByeongJoPanSeo(崇祿大夫行兵曹判書) YangCheonGun(陽川君) Heo Jong(許琮) following instructions of King Sungjong. This book was made by supplementing "EiBangRyuChwi(醫方類聚)", "HyangYakJeSengBang(鄕藥濟生方)" and "GuGeupBang(救急方)". When Yoon Ho presented it the king in May 1489(the 20th year of Sungjong), the king made the governors of each province publish it in large numbers, allowing common people to have this book and find the treatment immediately and save lives. 2. "GuGeupGanIBang(救急簡易方)" consists of 8 volumes, 127 chapters. Contents on stroke is the largest section. Separate chapters for gynecology and pediatrics let children that are easily ill and women that cannot get treatment freely be taken care of. It is an first aid medical book covering all ages, fulfilling its original purpose.

YM155 Induces Apoptosis through Downregulation of Anti-apoptotic Proteins in Head and Neck AMC-HN4 Cells (YM155 처리에 의한 두경부 암 AMC-HN4 세포 세포자멸사 유도 효과)

  • Chang, Ho Joon;Kwon, Taeg Kyu;Kim, Dong Eun
    • Journal of Life Science
    • /
    • v.29 no.3
    • /
    • pp.318-324
    • /
    • 2019
  • Squamous cell carcinoma is the primary tumor type in head and neck cancers, the fifth most common malignant neoplasm world-wide. Survivin, a member of the inhibitor of apoptosis family, is highly expressed in head and neck carcinoma patients and correlated with more aggressive forms. In this study, we investigated whether YM155, a specific survivin inhibitor, could induce apoptosis in head and neck AMC-HN4 cells. YM155 was found to markedly induce apoptosis and cleavage of PARP, a marker of apoptosis. Furthermore, YM155 promoted apoptosis in other cancer cells, such as glioma (U251MG) and renal carcinoma (Caki) cells. In contrast, YM155 had no effect on apoptosis in normal mesangial cells. YM155 significantly induced caspase activation, and pan caspase inhibitor z-VAD-fmk markedly blocked apoptosis, PARP cleavage, and caspase-3 cleavage. Therefore, YM155 was seen to instigate caspase-dependent apoptosis in head and neck AMC-HN4 cells, inducing downregulation of survivin as well as other apoptotic proteins such as c-FLIP and Mcl-1. In addition, the induction of apoptosis and PARP cleavage by YM155 treatment was effectively inhibited in survivin-, c-FLIP- and Mcl-1-over-expressing head and neck AMC-HN4 cells. In conclusion, YM155 is a potent candidate for inducing cell death in head and neck AMC-HN4 cells.