To see the other types of publications on this topic, follow the link: Time to contact.

Journal articles on the topic 'Time to contact'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Time to contact.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

McCann, Lisa, Warwick Allan, Phillip Read, and Anna McNulty. "Contact tracing using provider referral: how difficult is it?" Sexual Health 10, no. 5 (2013): 472. http://dx.doi.org/10.1071/sh13085.

Full text
Abstract:
Contact tracing using provider referral is often perceived as time-consuming. To assess the workload involved in provider referral at a sexual health clinic, we studied the number of attempts required, the contact method used, the time taken and the success of provider referral for 230 contacts referred over a 3-year period. For 87% of these contacts, a mobile number was available; 78.7% of these were successfully contacted. A median of two calls was required and the median time to complete the contact tracing process was within the same day. In 91% of cases, contact tracing was successful. In our setting, provider notification was not time-consuming.
APA, Harvard, Vancouver, ISO, and other styles
2

Mithun, Marianne. "Grammar, Contact and Time." Journal of Language Contact 1, no. 1 (2007): 144–67. http://dx.doi.org/10.1163/000000007792548378.

Full text
Abstract:
AbstractA continuing issue in work on language contact has been determining the relative borrowability of various structural features. It is easy to imagine, for example, how a tendency to use particular word order patterns in one language might be replicated by bilinguals in another, but difficult to understand how abstract morphological structures could be transferred. When we look at linguistic areas, however, we often find grammatical features shared by genetically unrelated languages that seem unborrowable. Here we consider the importance of adding the dimension of time to investigations into the potential effects of contact. As a point of departure we examine a relatively straightforward example from western North America, a striking parallelism in verbal structure among large numbers of languages indigenous to California. The example illustrates the fact that parallel grammatical structures in neighboring languages need not have been borrowed in their current form. They might instead be the result of an earlier transfer of patterns of expression that set the stage for subsequent parallel developments.
APA, Harvard, Vancouver, ISO, and other styles
3

Kawase, Toshihiro, Keiichi Ohishi, Kazuya Yoneyama, Hiroyuki Kambara, and Yasuharu Koike. "Recalibration of time to contact." Robotics and Autonomous Systems 60, no. 5 (May 2012): 742–46. http://dx.doi.org/10.1016/j.robot.2011.06.011.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Babel, Anna M. "Time and reminiscence in contact." Spanish in Context 11, no. 3 (December 8, 2014): 311–34. http://dx.doi.org/10.1075/sic.11.3.01bab.

Full text
Abstract:
The question of how and why change occurs is a persistent theme in research on language contact and sociolinguistics. In this article, I investigate the role of social context in producing change and maintenance in a contact variety of Andean Spanish. Two generations of speakers in a Quechua-Spanish contact zone in central Bolivia interpret stress shift on the first person imperfect past tense as a marker of the “reminiscent past.” An emergent but unstable grammatical distinction is entwined with lived experience and speakers’ positioning as social actors. Both stability and change are produced by speakers through practice and are closely related to the iconization of contact features as symbols of social orientation and experience.
APA, Harvard, Vancouver, ISO, and other styles
5

Shah, Dipen C., and Mehdi Namdar. "Real-Time Contact Force Measurement." Circulation: Arrhythmia and Electrophysiology 8, no. 3 (June 2015): 713–21. http://dx.doi.org/10.1161/circep.115.002779.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

CHEN, S. C., and Z. S. YOU. "Social contact patterns of school-age children in Taiwan: comparison of the term time and holiday periods." Epidemiology and Infection 143, no. 6 (July 31, 2014): 1139–47. http://dx.doi.org/10.1017/s0950268814001915.

Full text
Abstract:
SUMMARYSchool closure is one of the most common interventions in the early weeks of an influenza pandemic. Few studies have investigated social contact patterns and compared individual student contact characteristics during the school term and holiday periods in Taiwan. Here, we conducted a well-used questionnaire survey in a junior high school (grades 7–8) in June 2013. All 150 diary-based effective questionnaires covering conversation and skin-to-skin contact behaviour were surveyed. Two questionnaires for each participant were designed to investigate the individual-level difference of contact numbers per day during the two periods. The questionnaire response rate was 44%. The average number of contacts during term time (20·0 contacts per day) and holiday periods (12·6 contacts per day) were significantly different (P < 0·05). The dominant contact frequencies and duration were everyday contact (89·10%) and contacts lasting less than 5 minutes (37·09%). The greatest differences occurred within the 13–19 years age groups. The result presented in this study provide an indication of the likely reduction in daily contact frequency that might occur if a school closure policy was adopted in the event of an influenza pandemic in Taiwan. Comparing contact patterns during term time and holiday periods, the number of contacts decreased by 40%. This study is the first research to investigate the contact numbers and contact characteristics for school-age children during the school term and a holiday period in Taiwan. With regard to public health, this study could provide the basic contact information and database for modelling influenza epidemics for minimizing the spread of influenza that depends on personal contacts for transmission.
APA, Harvard, Vancouver, ISO, and other styles
7

JIANG, L., H. L. NG, H. J. HO, Y. S. LEO, K. PREM, A. R. COOK, and M. I. CHEN. "Contacts of healthcare workers, patients and visitors in general wards in Singapore." Epidemiology and Infection 145, no. 14 (September 8, 2017): 3085–95. http://dx.doi.org/10.1017/s0950268817002035.

Full text
Abstract:
SUMMARYTo characterize contacts in general wards, a prospective survey of healthcare workers (HCWs), patients and visitors was conducted using self-reported diary, direct observation and telephone interviews. Nurses, doctors and assorted HCWs reported a median of 14, 18 and 15 contact persons over one work shift, respectively. Within 1 h, we observed 3·5 episodes with 25·6 min of cumulative contact time for nurses, 2·9 episodes and 22·1 min for doctors and 5·0 episodes with 44·3 min for assorted-HCWs. In interactions with patients, nurses had multiple brief episodes of contact; doctors had fewer episodes and less cumulative contact time; assorted-HCWs had fewer contact episodes of longer durations (than for nurses and doctors). Assortative mixing occurred amongst HCWs: those of the same HCW type were the next most frequent class of contact after patients. Over 24-h, patients contacted 14 persons with 23 episodes and 314·5 min of contact time. Patient-to-patient contact episodes were rare, but a maximum of five were documented from one patient participant. 22·9% of visitors reported contact with patients other than the one they visited. Our study revealed differences in the characteristics of contacts among different HCW types and potential transmission routes from patients to others within the ward environment.
APA, Harvard, Vancouver, ISO, and other styles
8

Porter, Benjamin, Juan Josse, Carl Spangenberg, and Keith Hafner. "Modal Contact Time Tracer Studies in Two Chlorine Contact Tanks." Proceedings of the Water Environment Federation 2010, no. 16 (January 1, 2010): 1268–78. http://dx.doi.org/10.2175/193864710798158760.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Keil, Tina F., Miriam Koschate, and Mark Levine. "Contact Logger: Measuring everyday intergroup contact experiences in near-time." Behavior Research Methods 52, no. 4 (January 21, 2020): 1568–86. http://dx.doi.org/10.3758/s13428-019-01335-w.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Lee, Jae-Ik, Youngsup Song, Hakkyun Jung, Jungwook Choi, Youngkee Eun, and Jongbaeg Kim. "Deformable Carbon Nanotube-Contact Pads for Inertial Microswitch to Extend Contact Time." IEEE Transactions on Industrial Electronics 59, no. 12 (December 2012): 4914–20. http://dx.doi.org/10.1109/tie.2011.2163918.

Full text
APA, Harvard, Vancouver, ISO, and other styles
11

Alarabi, Louai, Saleh Basalamah, Abdeltawab Hendawi, and Mohammed Abdalla. "TraceAll: A Real-Time Processing for Contact Tracing Using Indoor Trajectories." Information 12, no. 5 (May 6, 2021): 202. http://dx.doi.org/10.3390/info12050202.

Full text
Abstract:
The rapid spread of infectious diseases is a major public health problem. Recent developments in fighting these diseases have heightened the need for a contact tracing process. Contact tracing can be considered an ideal method for controlling the transmission of infectious diseases. The result of the contact tracing process is performing diagnostic tests, treating for suspected cases or self-isolation, and then treating for infected persons; this eventually results in limiting the spread of diseases. This paper proposes a technique named TraceAll that traces all contacts exposed to the infected patient and produces a list of these contacts to be considered potentially infected patients. Initially, it considers the infected patient as the querying user and starts to fetch the contacts exposed to him. Secondly, it obtains all the trajectories that belong to the objects moved nearby the querying user. Next, it investigates these trajectories by considering the social distance and exposure period to identify if these objects have become infected or not. The experimental evaluation of the proposed technique with real data sets illustrates the effectiveness of this solution. Comparative analysis experiments confirm that TraceAll outperforms baseline methods by 40% regarding the efficiency of answering contact tracing queries.
APA, Harvard, Vancouver, ISO, and other styles
12

Qi, Lei, Ming Zong, Shuyi Hao, and Xuejie Wang. "Breaking time control of back-to-back double E-type alternating current contactor." International Journal of Distributed Sensor Networks 16, no. 6 (June 2020): 155014772092889. http://dx.doi.org/10.1177/1550147720928892.

Full text
Abstract:
The arc generated by breaking the main circuit exacerbates the ablation of the contact, which affects the life of the contactor seriously. By controlling the breaking time of the contactor and making contact break in the optimum time zone are the effective ways to weaken the arc. In this article, the contact movement characteristic is concerned directly in order to control the contact breaking time. A back-to-back double-E alternating current contactor is proposed, and its structural parameters are optimized by particle swarm optimization algorithm. The mathematical model of circuit and magnetic is established. A closed-loop control system based on velocity feedback is proposed. The simulation results show that the designed contactor and the proposed control method are correct, and the actual velocity curve of the contact is consistent with the planned motion curve. It can realize zero-crossing breaking of the main circuit to achieve the effect of no-arc breaking.
APA, Harvard, Vancouver, ISO, and other styles
13

Karas, I., and R. Gálik. "Contact and non-contact thermometry in the milk acquisition process." Czech Journal of Animal Science 49, No. 1 (December 11, 2011): 1–7. http://dx.doi.org/10.17221/4264-cjas.

Full text
Abstract:
Temperatures of the northern wall, ceiling and floor of a 2 &times; 12 milking house as well as of a waiting area in front of the milking house were measured for 24 hours a&nbsp;day in the winter season with an average external daily temperature of &ndash;8.6&deg;C. The influence of low external temperatures on the temperatures of cows&rsquo; mammary glands was measured with a&nbsp;non-contact thermometer RAYNGER ST 6 equipped with laser. The analysis showed that the low external temperatures and insufficiently warmed external walls [average 24-hour temperatures: (t<sub>st</sub>&nbsp;=&nbsp;+1.32&deg;C), ceiling (t<sub>s</sub> = +2.65&deg;C), floor (t<sub>p</sub> = +3.29&deg;C)] as well as the waiting area in front of the milking house (t<sub>d</sub>&nbsp;= +1.9&deg;C) produced unsuitable temperature conditions despite of the use of heaters in the milking house, resulting in the undercooling of mammary glands and the traumatising of dairy cows. The temperatures of mammary glands of tested dairy cows were evaluated by a multifactor analysis of variance. The time and place of measuring were statistically significant on the significance level 0.05. The F -test value for the factor of time was 12.342, with probability 0.0007. The F -test value for the place of temperature measuring was 1061.979, probability 0.0000. Among the equations of curves of the dependences of teat end temperature on the milking time, the closest seemed to be the logarithmic function with determination index R<sup>2</sup> = 0.7404. &nbsp;
APA, Harvard, Vancouver, ISO, and other styles
14

SCHOESSLER, JOHN P. "Actual Wearing Time vs. Possession Time of Contact Lenses." Optometry and Vision Science 66, no. 4 (April 1989): 196–201. http://dx.doi.org/10.1097/00006324-198904000-00003.

Full text
APA, Harvard, Vancouver, ISO, and other styles
15

RAHADIANTI, Laksmita, Wooseong JEONG, Fumihiko SAKAUE, and Jun SATO. "Time-to-Contact in Scattering Media." IEICE Transactions on Information and Systems E100.D, no. 3 (2017): 564–73. http://dx.doi.org/10.1587/transinf.2016edp7230.

Full text
APA, Harvard, Vancouver, ISO, and other styles
16

Watanabe, Yukitoshi, Fumihiko Sakaue, and Jun Sato. "Time-to-Contact from Photometric Information." IPSJ Transactions on Computer Vision and Applications 6 (2014): 39–42. http://dx.doi.org/10.2197/ipsjtcva.6.39.

Full text
APA, Harvard, Vancouver, ISO, and other styles
17

Xie, Fang-Fang, Shu-Hang Lv, Yan-Ru Yang, and Xiao-Dong Wang. "Contact Time of a Bouncing Nanodroplet." Journal of Physical Chemistry Letters 11, no. 8 (March 20, 2020): 2818–23. http://dx.doi.org/10.1021/acs.jpclett.0c00788.

Full text
APA, Harvard, Vancouver, ISO, and other styles
18

Gent, A. N., and H. J. Kim. "Effect of Contact Time on Tack." Rubber Chemistry and Technology 63, no. 4 (September 1, 1990): 613–23. http://dx.doi.org/10.5254/1.3538277.

Full text
Abstract:
Abstract The following conclusions are obtained: 1. The autohesion strength of elastomers increases linearly with the rate of detachment over the range 200 to 1000 mm/s. 2. The autohesion strength increases by a factor of only 2× to 3× when the contact pressure is increased by 3 orders of magnitude, from 2 kPa to 2 MPa. 3. Autohesion strength develops rapidly in the early stages of contact for SBR, BR, and EPR, increasing from about 20 J/m2 to about 500–1000 J/m2 as the contact time increased from 1 to 100 ms. It increased more slowly thereafter, to about 10 kJ/m2 after a contact time of 1000 s. 4. The development of autohesion was exactly the same at 3°C as at 25°C. This feature is attributed to simultaneous changes in developing true contact, and in resisting separation after contact, that exactly cancel. 5. Adhesion between SBR and EPR is lower than the autohesion strength of the individual polymers over the whole range of contact time. On the other hand, the three strengths for SBR and BR are almost the same. 6. The overall similarity between the rates of development of autohesion and adhesion suggest that autohesion is governed mainly by the strength and extent of intimate molecular contact that is developed at the interface. Contributions from interdiffusion, if any, appear to be significant only in the later stages of contact.
APA, Harvard, Vancouver, ISO, and other styles
19

Richard, Denis, Christophe Clanet, and David Quéré. "Contact time of a bouncing drop." Nature 417, no. 6891 (June 2002): 811. http://dx.doi.org/10.1038/417811a.

Full text
APA, Harvard, Vancouver, ISO, and other styles
20

Grimmer, Daniel, Robert B. Mann, and Eduardo Martín-Martínez. "Thermal contact: mischief and time scales." Journal of Physics A: Mathematical and Theoretical 52, no. 39 (September 3, 2019): 395305. http://dx.doi.org/10.1088/1751-8121/ab3a19.

Full text
APA, Harvard, Vancouver, ISO, and other styles
21

Duggal, K. L. "Space time manifolds and contact structures." International Journal of Mathematics and Mathematical Sciences 13, no. 3 (1990): 545–53. http://dx.doi.org/10.1155/s0161171290000783.

Full text
Abstract:
A new class of contact manifolds (carring a global non-vanishing timelike vector field) is introduced to establish a relation between spacetime manifolds and contact structures. We show that odd dimensional strongly causal (in particular, globally hyperbolic) spacetimes can carry a regular contact structure. As examples, we present a causal spacetime with a non regular contact structure and a physical model [Gödel Universe] of Homogeneous contact manifold. Finally, we construct a model of 4-dimensional spacetime of general relativity as a contact CR-submanifold.
APA, Harvard, Vancouver, ISO, and other styles
22

Kobayashi, Hajime, and Katsunori Ohta. "Multimarket contact in continuous-time games." Economics Letters 101, no. 1 (October 2008): 4–5. http://dx.doi.org/10.1016/j.econlet.2008.03.031.

Full text
APA, Harvard, Vancouver, ISO, and other styles
23

Creton, Costantino, and Ludwik Leibler. "How does tack depend on time of contact and contact pressure?" Journal of Polymer Science Part B: Polymer Physics 34, no. 3 (February 1996): 545–54. http://dx.doi.org/10.1002/(sici)1099-0488(199602)34:3<545::aid-polb13>3.0.co;2-i.

Full text
APA, Harvard, Vancouver, ISO, and other styles
24

Rojek, Artur, and Marek Skrzyniarz. "Contact arc time – important parameter of DC high-speed circuit-breakers." MATEC Web of Conferences 294 (2019): 05002. http://dx.doi.org/10.1051/matecconf/201929405002.

Full text
Abstract:
The parameters of DC high-speed circuit-breakers (HSCB) and test methods are specified in the standards. These standards define requirements of the circuit breakers opening time and the total breaking time. During the direct current (DC) breaking after opening the contacts, the arc ignites, the voltage of which is so low that it does not limit the switched off current. The time in which this phenomenon occurs is defined as the contact arc time.The contact arc time has a significant influence on the breaking process. It can take up to over 40% of arcing time. Therefore, tests were carried out, which were to answer the questions about what and to a what extent affects the contact arc time.Since the standards for high-speed circuit-breakers do not refer to the contact arc time, definitions of this parameter are proposed in the article. Using this definition numerous tests of various factors have been carried out on contact arc time.The conducted research shows that shortening the DC breaking time through high-speed breakers is possible by limiting the contact arc time, which can be obtained by modifying the circuit breaker’s construction.
APA, Harvard, Vancouver, ISO, and other styles
25

England, Danelle O., Marian J. Currie, and Francis J. Bowden. "An audit of contact tracing for cases of chlamydia in the Australian Capital Territory." Sexual Health 2, no. 4 (2005): 255. http://dx.doi.org/10.1071/sh05021.

Full text
Abstract:
Background: Contact tracing is one of the central pillars of the management of sexually transmitted infections. The aims of this audit were to determine the yield of chlamydia infection from contact tracing the sexual partners of individuals diagnosed with chlamydia and to evaluate and compare the effectiveness of contact tracing undertaken at the Communicable Diseases Control Section (CDCS) of Australian Capital Territory (ACT) Health and the Canberra Sexual Health Centre (the clinic). Methods: A retrospective review of the notification records and contact-tracing documentation was undertaken at CDCS and the clinic from 1 September 2002 to 30 September 2003 (13 months). Results: The background rate of chlamydia in those tested in the ACT community is 3–5%. During the study period, 512 cases of chlamydia were notified to CDCS. Of these, 351 were referred for contact tracing, 293 by CDCS and 98 by the clinic. Of the 437 nominated sexual contacts (average of 1.12 per index case), 272 (62.2%) were contacted, 125 (28.6%) were tested and 51 (11.7%; 95% CI 8.8–15.1) tested positive for chlamydia (15.5%; 95% CI 11.5–20.6% in sexual contacts of CDCS index cases and 7.8%; 95% CI 4.8–12.5% in those of the clinic patients). Contact tracing through the CDCS reached significantly more nominated sexual contacts (78.4% v. 41.7%; P = 0.001) and significantly more of the nominated sexual contacts of index cases reported to CDCS were described as tested (34.7% v. 20.8%; P = 0.01). The average time taken to identify each chlamydia-positive sexual contact was 6.8 hours. Conclusions: Contact tracing more than doubled the case finding effectiveness of chlamydia screening, but was time consuming. These results suggest that provider-initiated contact tracing has clinical and public health value, but that the cost-effectiveness of this approach to chlamydia control should be further evaluated.
APA, Harvard, Vancouver, ISO, and other styles
26

Chang, Chia-Jung, and Mehrdad Jazayeri. "Integration of speed and time for estimating time to contact." Proceedings of the National Academy of Sciences 115, no. 12 (March 5, 2018): E2879—E2887. http://dx.doi.org/10.1073/pnas.1713316115.

Full text
Abstract:
To coordinate movements with events in a dynamic environment the brain has to anticipate when those events occur. A classic example is the estimation of time to contact (TTC), that is, when an object reaches a target. It is thought that TTC is estimated from kinematic variables. For example, a tennis player might use an estimate of distance (d) and speed (v) to estimate TTC (TTC = d/v). However, the tennis player may instead estimate TTC as twice the time it takes for the ball to move from the serve line to the net line. This latter strategy does not rely on kinematics and instead computes TTC solely from temporal cues. Which of these two strategies do humans use to estimate TTC? Considering that both speed and time estimates are inherently uncertain and the ability of the human brain to combine different sources of information, we hypothesized that humans estimate TTC by integrating speed information with temporal cues. We evaluated this hypothesis systematically using psychophysics and Bayesian modeling. Results indicated that humans rely on both speed information and temporal cues and integrate them to optimize their TTC estimates when both cues are present. These findings suggest that the brain’s timing mechanisms are actively engaged when interacting with dynamic stimuli.
APA, Harvard, Vancouver, ISO, and other styles
27

Comby-Dassonneville, Solène, Fabien Volpi, Guillaume Parry, Didier Pellerin, and Marc Verdier. "Resistive-nanoindentation: contact area monitoring by real-time electrical contact resistance measurement." MRS Communications 9, no. 3 (June 7, 2019): 1008–14. http://dx.doi.org/10.1557/mrc.2019.74.

Full text
APA, Harvard, Vancouver, ISO, and other styles
28

McCreesh, N., A. D. Grant, T. A. Yates, A. S. Karat, and R. G. White. "Tuberculosis from transmission in clinics in high HIV settings may be far higher than contact data suggest." International Journal of Tuberculosis and Lung Disease 24, no. 4 (April 1, 2020): 403–8. http://dx.doi.org/10.5588/ijtld.19.0410.

Full text
Abstract:
BACKGROUND: In South Africa, it is generally estimated that only 0.5–0.6% of people's contacts occur in clinics. Both people with infectious tuberculosis and people with increased susceptibility to disease progression may spend more time in clinics, however, increasing the importance of clinic-based transmission to overall disease incidence.METHODS: We developed an illustrative mathematical model of Mycobacterium tuberculosis transmission in clinics and other settings. We assumed that 1% of contact time occurs in clinics. We varied the ratio of clinic contact time of human immunodeficiency virus (HIV) positive people compared to HIV-negative people, and of people with infectious TB compared to people without TB, while keeping the overall proportion of contact time occurring in clinics, and each person's total contact time, constant.RESULTS: With clinic contact rates respectively 10 and 5 times higher in HIV-positive people and people with TB, 10.7% (plausible range 8.5–13.4%) of TB resulted from transmission in clinics. With contact rates in HIV-positive people and people with TB respectively 5 and 2 times higher, 5.3% (plausible range 4.3–6.3%) of all TB was due to transmission in clinics.CONCLUSION: The small amount of contact time that generally occurs in clinics may greatly underestimate their contribution to TB disease in high TB-HIV burden settings.
APA, Harvard, Vancouver, ISO, and other styles
29

Osborn, K. F., and F. Sadeghi. "Time Dependent Line EHD Lubrication Using the Multigrid/Multilevel Technique." Journal of Tribology 114, no. 1 (January 1, 1992): 68–74. http://dx.doi.org/10.1115/1.2920870.

Full text
Abstract:
A numerical solution of time dependent compressible elastohydrodynamic lubrication of line contacts has been obtained. The results show the effects of various operating parameters on the transient response behavior of a lubricated contact. The analysis models a startup situation where the surfaces are initially at rest and in contact. Then, with the contacts operating at a given load and speed, the analysis is run until the pressure and film thickness reach a steady-state condition. A multigrid/multilevel technique is used to simultaneously solve the time dependent Reynolds and elasticity equations. The effects of various loads and speeds have been investigated. Results are presented for nondimensional loads ranging from W = 2.0 × 10−5 to W = 2.3 × 10−4 and nondimensional speeds ranging from U = 1.0 × 10−12 to U = 1.0 × 10−10.
APA, Harvard, Vancouver, ISO, and other styles
30

Forster, H., and J. Fisher. "The Influence of Loading Time and Lubricant on the Friction of Articular Cartilage." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 210, no. 2 (June 1996): 109–19. http://dx.doi.org/10.1243/pime_proc_1996_210_399_02.

Full text
Abstract:
Friction of cartilage on metal, metal on cartilage and cartilage on cartilage contact configurations, within a mixed lubrication regime, was measured using synovial fluid, Ringer's solution or with no lubricant present. The main test variable was the period of stationary loading which ranged from 5 s to 45 min, prior to sliding and consequently measuring friction. The coefficient of friction rose gradually with increasing stationary loading time, up to a value of approximately 0.3 at 45 min for all the contact configurations. Following the re-application of load, after short periods of load removal, friction was also found to drop sharply. The flow of liquid in the biphasic cartilage and load carriage by the fluid phase was highlighted as being an important factor in reducing friction within the mixed or boundary lubrication regime. Movement of the contact zone over the cartilage counterface ensured very low friction as the slider moved over fully hydrated cartilage. For the cartilage-cartilage contacts synovial fluid significantly reduced friction compared to Ringer's solution. This was attributed to an effective boundary lubrication action, which was not as effective for the cartilage-metal contacts. contacts.
APA, Harvard, Vancouver, ISO, and other styles
31

Wilson, Arun, Anup Warrier, and Balram Rathish. "Contact tracing: a lesson from the Nipah virus in the time of COVID-19." Tropical Doctor 50, no. 3 (May 31, 2020): 174–75. http://dx.doi.org/10.1177/0049475520928217.

Full text
Abstract:
Without a vaccine or proven therapeutic options in COVID-19, the World Health Organization (WHO) recommends a combination of measures: rapid diagnosis and immediate isolation of cases; rigorous contact tracing; and precautionary self-isolation of close contacts to curb the spread of COVID-19. During a Nipah outbreak in Kerala, India in 2019, it was confined to a single case. The authors were involved in the in-hospital contact tracing. With a single patient producing a contact list of 98 in a healthcare setting, the implications in a community setting during a pandemic of the scale of COVID-19 are huge but it proves that early and rigorous tracing with quarantining is an effective strategy to limit clusters. We believe that if the public is encouraged to maintain their own contact list on a daily basis, it would help in significantly reducing the time and effort invested into contact tracing in the event of a person contracting COVID-19.
APA, Harvard, Vancouver, ISO, and other styles
32

Fathi, M., R. Lødeng, E. S. Nilsen, B. Silberova, and A. Holmen. "Short contact time oxidative dehydrogenation of propane." Catalysis Today 64, no. 1-2 (January 2001): 113–20. http://dx.doi.org/10.1016/s0920-5861(00)00515-0.

Full text
APA, Harvard, Vancouver, ISO, and other styles
33

Lugtigheid, Arthur J., and Andrew E. Welchman. "Evaluating methods to measure time-to-contact." Vision Research 51, no. 20 (October 2011): 2234–41. http://dx.doi.org/10.1016/j.visres.2011.08.019.

Full text
APA, Harvard, Vancouver, ISO, and other styles
34

Brenner, E., and A. Holcombe. "Time to contact does not pop out." Journal of Vision 11, no. 11 (September 23, 2011): 1213. http://dx.doi.org/10.1167/11.11.1213.

Full text
APA, Harvard, Vancouver, ISO, and other styles
35

Pai, Dinesh, Robert Rolin, Jolande Fooken, and Miriam Spering. "Time to Contact Estimation in Virtual Reality." Journal of Vision 17, no. 10 (August 31, 2017): 417. http://dx.doi.org/10.1167/17.10.417.

Full text
APA, Harvard, Vancouver, ISO, and other styles
36

Shaw, Brian K., Richard S. McGowan, and M. T. Turvey. "An Acoustic Variable Specifying Time-to-Contact." Ecological Psychology 3, no. 3 (September 1991): 253–61. http://dx.doi.org/10.1207/s15326969eco0303_4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
37

Hancock, P. A., and M. P. Manster. "Time-to-Contact: More Than Tau Alone." Ecological Psychology 9, no. 4 (December 1997): 265–97. http://dx.doi.org/10.1207/s15326969eco0904_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
38

Sánchez, José, and James Irwin. "Drumhead contact time measurement using metallic leaf." Journal of the Acoustical Society of America 111, no. 5 (2002): 2395. http://dx.doi.org/10.1121/1.4778146.

Full text
APA, Harvard, Vancouver, ISO, and other styles
39

EFRON, NATHAN, and SOPHIA McCUBBIN. "Grading Contact Lens Complications Under Time Constraints." Optometry and Vision Science 84, no. 12 (December 2007): 1082–86. http://dx.doi.org/10.1097/opx.0b013e31815b9dfc.

Full text
APA, Harvard, Vancouver, ISO, and other styles
40

Henrique, Antonio, Pinto Selvatici, Anna Helena, and Reali Costa. "Obstacle avoidance using time-to-contact information." IFAC Proceedings Volumes 37, no. 8 (July 2004): 513–18. http://dx.doi.org/10.1016/s1474-6670(17)32029-3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
41

Baurès, Robin, Marie Fourteau, Salomé Thébault, Chloé Gazard, Léa Pasquio, Giulia Meneghini, Juliette Perrin, Maxime Rosito, Jean‐Baptiste Durand, and Franck‐Emmanuel Roux. "Time‐to‐contact perception in the brain." Journal of Neuroscience Research 99, no. 2 (October 18, 2020): 455–66. http://dx.doi.org/10.1002/jnr.24740.

Full text
APA, Harvard, Vancouver, ISO, and other styles
42

Hannoun, Imad A., Paul F. Boulos, and E. John List. "Using hydraulic modeling to optimize contact time." Journal - American Water Works Association 90, no. 8 (August 1998): 77–87. http://dx.doi.org/10.1002/j.1551-8833.1998.tb08487.x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
43

Ranjit, Manish, Harshvardhan Gazula, Simon M. Hsiang, and Patricia R. DeLucia. "Stochastic Resonance in Time-to-Contact Judgments." Fluctuation and Noise Letters 14, no. 02 (May 4, 2015): 1550021. http://dx.doi.org/10.1142/s0219477515500212.

Full text
Abstract:
Stochastic resonance (SR) is a counterintuitive phenomenon in which additive noise enhances performance of a nonlinear system. Previous studies demonstrated SR effect on human tactile sensitivity by adding noise of same modality and cross modality. Similarly, enhancement of human hearing through additive noise has been studied. In this study, we investigate the effect of noise in visual perception, specifically time-to-contact (TTC) judgments. This study explores four research questions: (1) Does noise help in TTC judgments? (2) How does noise affect speed and accuracy of TTC judgments? (3) Does cross modal noise help in TTC judgments? (4) How does cross modal noise affect speed and accuracy of TTC judgments? Through simulation, we show that noise in optical cue can enhance weak signals. We also demonstrate that noise can improve speed of TTC judgments at the expense of accuracy. Similarly, we demonstrate SR by adding noise of cross modality. These findings provide plausible hypotheses regarding how much noise should be added to enhance TTC judgments.
APA, Harvard, Vancouver, ISO, and other styles
44

Hauser, Kris. "Fast interpolation and time-optimization with contact." International Journal of Robotics Research 33, no. 9 (August 2014): 1231–50. http://dx.doi.org/10.1177/0278364914527855.

Full text
APA, Harvard, Vancouver, ISO, and other styles
45

Anderson, Raymond P., Bruce F. Alexander, Charles H. Wright, and John Freel. "Short contact-time liquefaction of subbituminous coal." Fuel 64, no. 11 (November 1985): 1564–70. http://dx.doi.org/10.1016/0016-2361(85)90374-6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
46

Tadrist, Loïc, Baptiste Darbois Texier, François Lanzetta, and Lounès Tadrist. "Impact of a pressurised membrane: Contact time." International Journal of Impact Engineering 156 (October 2021): 103963. http://dx.doi.org/10.1016/j.ijimpeng.2021.103963.

Full text
APA, Harvard, Vancouver, ISO, and other styles
47

Chong, Nak Young, Donghoon Choi, and Il Hong Suh. "A motion planning strategy for multifingered hands considering sliding and rolling contacts." Robotica 13, no. 2 (March 1995): 149–58. http://dx.doi.org/10.1017/s0263574700017653.

Full text
Abstract:
SummaryAn algorithm for the motion planning of the multifingered hand is proposed to generate finite displacements and changes in orientation of objects by considering sliding contacts as well as rolling contacts between the fingertip and the object at the contact point. Specifically, a nonlinear optimization problem is firstly formulated and solved to find the minimum joint velocity and the minimum contact force to impart a desired motion to the object at each time step. Then, the relative velocity at the contact point is found by calculating the velocity of the fingertip and the object at the contact point. Finally, time derivatives of the surface variables and the contact angle of the fingertip and the object at the current time step is computed using the Montana's contact equation to find the contact parameters of the fingertip and the object at the next time step. To show the validity of the proposed algorithm, a numerical example is illustrated by employing the robotic hand manipulating a sphere with three fingers each of which has four joints
APA, Harvard, Vancouver, ISO, and other styles
48

Chae, Wonjeong, Dong-Woo Choi, Eun-Cheol Park, and Sung-In Jang. "Improved Inpatient Care through Greater Patient–Doctor Contact under the Hospitalist Management Approach: A Real-Time Assessment." International Journal of Environmental Research and Public Health 18, no. 11 (May 26, 2021): 5718. http://dx.doi.org/10.3390/ijerph18115718.

Full text
Abstract:
Objective: To examine the difference between hospitalist and non-hospitalist frequency of patient–doctor contact, duration of contact, cumulative contact time, and the amount of time taken by the doctor to resolve an issue in response to a medical call. Research Design and Measures: Data from 18 facilities and 36 wards (18 hospitalist wards and 18 non-hospitalist wards) were collected. The patient–doctor contact slip and medical call response slips were given to each inpatient ward to record. A total of 28,926 contacts occurred with 2990 patients, and a total of 8435 medical call responses occurred with 3329 patients. Multivariate logistic regression analyses and regression analyses were used for statistical analyses. Results: The average frequency of patient–doctor contact during a hospital stay was 10.0 times per patient for hospitalist patients. Using regression analyses, hospitalist patients had more contact with the attending physician (β = 5.6, standard error (SE) = 0.28, p < 0.0001). Based on cumulative contact time, hospitalists spent significantly more time with the patient (β = 32.29, SE = 1.54, p < 0.0001). After a medical call to resolve the issue, doctors who took longer than 10 min were 4.14 times (95% CI 3.15–5.44) and those who took longer than 30 min were 4.96 times (95% CI 2.75–8.95) more likely to be non-hospitalists than hospitalists. Conclusion: This study found that hospitalists devoted more time to having frequent encounters with patients. Therefore, inpatient care by a hospitalist who manages inpatient care from admission to discharge could improve the care quality.
APA, Harvard, Vancouver, ISO, and other styles
49

Rutala, William A., and David J. Weber. "Surface Disinfection: Treatment Time (Wipes and Sprays) Versus Contact Time (Liquids)." Infection Control & Hospital Epidemiology 39, no. 3 (March 2018): 329–31. http://dx.doi.org/10.1017/ice.2017.288.

Full text
APA, Harvard, Vancouver, ISO, and other styles
50

Kobsar, D., and J. Barden. "Contact Time Predicts Coupling Time in Slow Stretch-Shortening Cycle Jumps." Journal of Strength and Conditioning Research 25 (March 2011): S51–52. http://dx.doi.org/10.1097/01.jsc.0000395659.59658.d7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography