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| 1 | Two-Body Abrasive Wear of the Surfaces of Pangolin Scales显示文摘The Pangolin,a soil-burrowing animal,is covered with scales. These scales are often abraded by soil and rock and their surface is corrugated. The abrasive wear of the surface of the scales was examined. The scales were taken from a pangolin that had died of natural causes. The tests were run on a rotary disc abrasive wear tester. The abrasive material was quartz sand(96.5 wt.%) and bentonite(3.5 wt.%) . The morphology of the abraded surfaces and the abrasion were examined by stereoscopic microscopy and scanning electron microscopy. The concepts are proposed of 'Guiding-Effect' and 'Rolling-Effect' on the textured surfaces under free abrasive wear conditions and the critical dimensions of the 'Rolling-Effect' are discussed. | Jin Tong Tie-biao Lu Yun-hai Ma Heng-kun Wang Lu-quan Ren R. D. Arnell | 2007 | Journal of Bionic Engineering2007，4，2： | 12 |
| 2 | Colorectal cancer in patients under 50 years of age:A retrospective analysis of two institutions' experience显示文摘AIM:To investigate the epidemiological characteristics of colorectal cancer(CRC)in patients under 50 years of age across two institutions.METHODS:Records of patients under age 50 years of age who had CRC surgery over a 16 year period were assessed at two institutions.The following documents where reviewed:admission notes,operative notes,and discharge summaries.The main study variables included:age,presenting symptoms,family history,tumor location,operation,stage/differentiation of disease,and post operative complications.Stage of disease was classified according to the American Joint Committee on Cancer TNM staging system:tumor depth;node status;and metastases.RESULTS:CRC was found in 180 patients under age50 years(87 females,93 males;mean age 41.4±6.2years).Young patients accounted for 11.2%of cases during a 6 year period for which the full data set wasavailable.Eight percent had a 1stdegree and 12%a 2nd degree family CRC history.Almost all patients(94%)were symptomatic at diagnosis;common symptoms included:bleeding(59%),obstruction(9%),and abdominal/rectal pain(35%).Evaluation was often delayed and bleeding frequently attributed to hemorrhoids.Advanced stage CRC(Stage 3 or 4)was noted in 53%of patients.Most tumors were distal to the splenic flexure(77%)and 39%involved the rectum.Most patients(95%)had segmental resections;6 patients had subtotal/total colectomy.Poorly differentiated tumors were noted in 12%and mucinous lesions in 19%of patients of which most had Stage 3 or 4 disease.Twenty-two patients(13%)developed recurrence and/or progression of disease to date.Three patients(ages 42,42and 49 years)went on to develop metachronous primary colon cancers within 3 to 4 years of their initial resection.CONCLUSION:CRC was common in young patients with no family history.Young patients with symptoms merit a timely evaluation to avoid presentation with late stage CRC. | Elizabeth A Myers Daniel L Feingold Kenneth A Forde Tracey Arnell Joon Ho Jang Richard L Whelan | 2013 | World Journal of Gastroenterology2013，19，34： | 9 |
| 3 | Gastric adenocarcinoma in patients 40 years of age or younger显示文摘 | Charles P. Theuer Christian de Virgilio Greg Keese Samuel French Tracey Arnell Jorge Tolmos Stanley Klein William Powers Tony Oh Bruce E. Stabile | 1996 | The American Journal of Surgery1996，，5： | 2 |
| 4 | An electronic nose using a single graphene FET and machine learning for water, methanol, and ethanol显示文摘The poor gas selectivity problem has been a long-standing issue for miniaturized chemical-resistor gas sensors.The electronic nose(e-nose)was proposed in the 1980s to tackle the selectivity issue,but it required top-down chemical functionalization processes to deposit multiple functional materials.Here,we report a novel gas-sensing scheme using a single graphene field-effect transistor(GFET)and machine learning to realize gas selectivity under particular conditions by combining the unique properties of the GFET and e-nose concept.Instead of using multiple functional materials,the gas-sensing conductivity profiles of a GFET are recorded and decoupled into four distinctive physical properties and projected onto a feature space as 4D output vectors and classified to differentiated target gases by using machine-learning analyses.Our single-GFET approach coupled with trained pattern recognition algorithms was able to classify water,methanol,and ethanol vapors with high accuracy quantitatively when they were tested individually.Furthermore,the gas-sensing patterns of methanol were qualitatively distinguished from those of water vapor in a binary mixture condition,suggesting that the proposed scheme is capable of differentiating a gas from the realistic scenario of an ambient environment with background humidity.As such,this work offers a new class of gas-sensing schemes using a single GFET without multiple functional materials toward miniaturized e-noses. | Takeshi Hayasaka Albert Lin Vernalyn C.Copa Lorenzo P.Lopez Jr Regine A.Loberternos Laureen Ida M.Ballesteros Yoshihiro Kubota Yumeng Liu Arnel A.Salvador Liwei Lin | 2020 | Microsystems & Nanoengineering2020，6，1： | 2 |
| 5 | Hepatic artery pseudoaneurysm following laparoscopic cholecystectomy显示文摘 | Caroline A. Yao Tracey D. Arnell | 2010 | The American Journal of Surgery2010，，： | 2 |
| 6 | Magnetron sputtering;a review of recent development and applications显示文摘 | Kelly P J Arnell R D | 2000 | Vacuum2000，56，： | 1 |
| 7 | 显示文摘 | Kelly P J Arnell R D | 2000 | Vacuum2000，56，： | 1 |
| 8 | Climate change and global water resources显示文摘 | Arnell N W | 1999 | Global Environmental Change1999，9，： | 1 |
| 9 | Safety and reliability of tattooing colorectal neoplasms prior to laparoscopic resection显示文摘 | Daniel L. Feingold M.D. Tommaso Addona B.S. Kenneth A. Forde M.D. Tracey D. Arnell M.D. Joseph J. Carter M.D. Emina H. Huang M.D. Richard L. Whelan M.D | 2004 | Journal of Gastrointestinal Surgery2004，，5： | 1 |
| 10 | Magnetron Sputtering:A Review ofRecent Developments and Applications显示文摘 | Kelly P J Arnell R D | 2000 | Vacuum2000，56，3： | 1 |
| 11 | Initial nonoperative management for periappendiceal abscess显示文摘 | David Oliak M.D. Dan Yamini M.D. Vikram M. Udani Roger J. Lewis M.D. Ph.D. Tracey Arnell M.D. Hernan Vargas M.D. Dr. Michael J. Stamos M.D | 2001 | Diseases of the Colon & Rectum2001，，7： | 1 |
| 12 | 显示文摘 | Arnell R D Kelly P J Musil J | 1999 | Surface and Coating Technology1999，112，： | 1 |
| 13 | On the running-in behaviour of diamond-like carbon coatings under the ball-on-disk contact geometry显示文摘 | Jiaren Jiang R.D. Arnell | 1998 | Wear1998，，2： | 1 |
| 14 | Magnetron Sputtering: a Review of Recent Developments and Applications显示文摘 | Kelly P J Arnell R D | 2000 | Vacuum2000，56，： | 1 |
| 15 | Recent Advances in Magnetron Sput-tering显示文摘 | Arnell R D Kelly P J | 1999 | Surface and Coatings Technology1999，112，13： | 1 |
| 16 | Recent advances in magnetron sputtering显示文摘 | Arnell R D Kelly P J | 1999 | Surface and Coatings Technology1999，112，13： | 1 |
| 17 | Life style and hemostatic risk factors for ischemic heart disease: the Caerphilly Study显示文摘 | Arnell JW Sweetnam PM Rumley A | 2000 | Arterioscler Thromb Vasc Biol2000，20，： | 1 |
| 18 | A climate-change risk anal ysis for world ecosystems显示文摘 | Scholze M Knorr W Arnell N W | 2006 | Proceedings of the National A cademy of Sciences of the United States of America2006，103，13： | 1 |
| 19 | Recent developments in pulsed magnetron sputtering显示文摘 | Arnell R D Kelly P J Bradley J W | 2004 | Surface and Coatings Technology2004，，： | 1 |
| 20 | Magnetron sputtering: a review of recent developments and applications 显示文摘 | Kelly P J Arnell R D | 2000 | Vacuum2000，56，： | 1 |
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