To see the other types of publications on this topic, follow the link: Stick energy.

Journal articles on the topic 'Stick energy'

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 'Stick energy.'

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

Lincoln, James. "The Energy Stick." Physics Teacher 57, no. 9 (2019): 652–53. http://dx.doi.org/10.1119/1.5135806.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Eswanto, Eswanto, and Hanapi Hasan. "Mesin Penyerut Lidi Kelapa Sawit Sistem Mekanis Bagi Kelompok Masyarakat Desa Timbang Lawan Bahorok." Indonesia Berdaya 3, no. 3 (2022): 587–94. http://dx.doi.org/10.47679/ib.2022273.

Full text
Abstract:
In the process of separating leaves with sticks, the community in the Timbang Lawan Village area still uses human power and is done manually with a knife or machete. The solution is to make a stick shaver machine using a mechanical system with a capacity that is tailored to the needs of the user. The aim is to help increase the yield of palm oil sticks. The implementation method begins with examining the lack of technology and equipment in palm oil palm stick extraction, with stages 1). Follow-up surveys to partner locations to find out the work process of slashing and the output capacity to b
APA, Harvard, Vancouver, ISO, and other styles
3

Mestagensi, Halia, Maherawati Maherawati, and Dzul Fadly. "KARAKTERISTIK FISIKO-KIMIA DAN SENSORI KUE STIK IKAN BILIS (STOLEPHORUS HAMILTONII)." Jurnal Gizi Prima (Prime Nutrition Journal) 6, no. 2 (2021): 105. http://dx.doi.org/10.32807/jgp.v6i2.299.

Full text
Abstract:
Background : Fish stick cracker is diversification of processed fishery products. This study aimed to determine the chemical and sensory characteristics of anchovy-based fish cakes.Purpose : This study aims to analyze the concentration of anchovies as an additive that produces the best fish sticks based on physicochemical and sensory properties.Method : Penelitian ini adalah studi eksperimen dengan menggunakan Rancangan Acak Kelompok (RAK) dengan 5 taraf perlakuan penambahan ikan bilis (0%, 30%, 40%, 50%, dan 60% dari jumlah tepung terigu).Results : Hasil analisis menunjukkan produk terbaik di
APA, Harvard, Vancouver, ISO, and other styles
4

Setiawan, Ahmad Yudi, Nurul Iman Supardi, and Yulia Azatil Ismah. "DESAIN DAN SIMULASI KEGAGALAN STIK MANDRIL ROKET RX-100 PADA PROSES DECORING MENGGUNAKAN SOFTWARE SOLIDWORK." Rekayasa Mekanika 8, no. 2 (2024): 61–68. https://doi.org/10.33369/rekayasamekanika.v8i2.39390.

Full text
Abstract:
The substances used in rocket propellant have the ability to produce molecular gas at very high pressure and temperature during combustion. This material has great energy, and can explode so it is widely used in firearms, explosives and rockets. During the process of making rocket propellant, there is a process, namely the decorating process, which is the process of withdrawing the mandril stick from the propellant mold tube. The mandril stick is a component found at the end of the mandril itself, used as a link between the electric pulley and the mandril which is useful for pulling the mandri
APA, Harvard, Vancouver, ISO, and other styles
5

Helseth, L. E. "Excitation of energy harvesters using stick–slip motion." Smart Materials and Structures 23, no. 8 (2014): 085024. http://dx.doi.org/10.1088/0964-1726/23/8/085024.

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

Legates, David R. "A Scientific Stick Check." Energy & Environment 15, no. 3 (2004): 513–14. http://dx.doi.org/10.1260/0958305041494620.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

He, Bingbing, Huajiang Ouyang, Shangwen He, and Xingmin Ren. "Stick–slip vibration of a friction damper for energy dissipation." Advances in Mechanical Engineering 9, no. 7 (2017): 168781401771392. http://dx.doi.org/10.1177/1687814017713921.

Full text
Abstract:
This article studies energy dissipation of a friction damper (due to stick–slip vibration) in the context of harmonic excitation. There are numerous applications of such friction dampers in engineering. One particular example is a new kind of under-platform dry friction dampers for aero engines. The model consists of a clamped cross-like beam structure and two masses (friction dampers) in contact with the short beam of the cross. The two masses are allowed to slide along two extra short vertical clamped beams. They can exhibit three distinct dynamic regimes: pure slip, pure stick and a mixture
APA, Harvard, Vancouver, ISO, and other styles
8

Schwarz, R. B. "Helmholtz vibrations in bowed strings." Journal of the Acoustical Society of America 151, no. 4 (2022): 2461–73. http://dx.doi.org/10.1121/10.0010159.

Full text
Abstract:
For almost 160 years, it has been known that Helmholtz oscillations, unique to vibrating strings in bowed instruments (violin, cello, etc.), have two distinct regimes: “slip” and “stick.” During the slip regime, the force at the bow-string interaction is attributed to friction between the sliding bow hair and the vibrating string, with a friction coefficient that decreases with increasing relative velocity. Yet the hair-string interaction during the stick regime is less understood. We propose that the interaction force during the stick regime is proportional to the product of the longitudinal
APA, Harvard, Vancouver, ISO, and other styles
9

Babici, Laura Mariana, Andrei Tudor, and Jordi Romeu. "Stick-Slip Phenomena and Acoustic Emission in the Hertzian Linear Contact." Applied Sciences 12, no. 19 (2022): 9527. http://dx.doi.org/10.3390/app12199527.

Full text
Abstract:
AE detection and analysis usually requires a specific, costly platform due to its particular burst nature and high-frequency content. This experimental study investigates the relationship between low-demand acoustic emission parameters (AE) and the occurrence of stick–slip (SS) at the Hertzian linear contact. Hence, the correlation of basic AE characteristics (amplitude, energy, and evolution in time) with stick–slip characteristics (static and kinetic friction coefficients, amplitude, energy, and evolution in time) is pursued. Tribological tests were conducted on cylinder–plane specimens unde
APA, Harvard, Vancouver, ISO, and other styles
10

Davis, Robert G. "The Carrot, the Stick, and the Flag." Lighting Design + Application 22, no. 5 (1992): 64–66. https://doi.org/10.1177/036063259202200515.

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

Zhou, Jinxiang, and Scott Husson. "Low-Energy Membrane Process for Concentration of Stick Water." Membranes 8, no. 2 (2018): 25. http://dx.doi.org/10.3390/membranes8020025.

Full text
APA, Harvard, Vancouver, ISO, and other styles
12

Babici, Laura Mariana, Andrei Tudor, and Jordi Romeu Garbi. "Acoustic emission at the wheel-rail contact with micro-slip and stick-slip." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 265, no. 6 (2023): 1477–84. http://dx.doi.org/10.3397/in_2022_0205.

Full text
Abstract:
The paper aims to analyse the occurrence of acoustic emission at the wheel-rail contact during micro-slip. The experimental model allows the contact pressure variation (MPa..GPa) and the sliding speed (0.01 to 0.5 mm/s) specific to the wheel-rail contact. It is determined experimentally and theoretically the appearance of the stick-slip phenomenon at the Hertzian contact of cylinder type (fixed-wheel specimen) - plane (mobile with very low speed - rail specimen). The experimental stand simultaneously measures the normal force, the friction force and the acoustic emission at different contact p
APA, Harvard, Vancouver, ISO, and other styles
13

Stacer, R. G., L. C. Yanyo, and F. N. Kelley. "Observations on the Tearing of Elastomers." Rubber Chemistry and Technology 58, no. 2 (1985): 421–35. http://dx.doi.org/10.5254/1.3536075.

Full text
Abstract:
Abstract 1. Frequency distributions of stick-slip tear arrest and initiation energies have different standard deviations; initiation values show greater variance. Tear arrest frequency distributions are symmetrical and have been described by a normal distribution. The tear-initiation distribution is skewed and has been modeled using both the extreme value and Weibull distributions. As a result, it is concluded that two separate mechanisms are responsible for the creation of the force minima and maxima observed in stick-slip tearing. Consequently, data reduction methods which average these valu
APA, Harvard, Vancouver, ISO, and other styles
14

Lakshmi, D. Sree. "Smart Blind Walking Stick." International Journal for Research in Applied Science and Engineering Technology 11, no. 6 (2023): 4954–64. http://dx.doi.org/10.22214/ijraset.2023.54220.

Full text
Abstract:
Abstract: Risky situations arise when visually challenged people attempt to identify the items in front of them while crossing the roadway. The development of a smart cane with a distance measurement system is the primary goal of this project. An ultrasonic sensor serves as the system's input, and earphones serve as its output. Additionally, the device features a GPS live finding system and a blind person's navigation guidance. Through the audio output, this device will warn blind persons of any obstructions so they can proceed safely and without incident. Blindness is a condition in which the
APA, Harvard, Vancouver, ISO, and other styles
15

Cooperstock, F. I. "Gravitational waves, energy and Feynman’s “sticky bead”." Modern Physics Letters A 30, no. 27 (2015): 1550143. http://dx.doi.org/10.1142/s0217732315501436.

Full text
Abstract:
It is noted that in the broader sense, gravitational waves viewed as spacetime curvature which necessarily accompanies electromagnetic waves at the speed of light, are the routine perception of our everyday experience. We focus on the energy issue and Feynman’s “sticky bead” argument which has been regarded as central in supporting the conclusion that gravitational waves carry energy through the vacuum in general relativity. We discuss the essential neglected aspects of his approach which leads to the conclusion that gravitational waves would not cause Feynman’s bead to heat the stick on which
APA, Harvard, Vancouver, ISO, and other styles
16

Ejike, Chinedu, Immanuel Frimpong Obuobi, Simon Avinu, Khizar Abid, and Catalin Teodoriu. "Investigation and Analysis of Influential Parameters in Bottomhole Stick–Slip Calculation during Vertical Drilling Operations." Energies 17, no. 3 (2024): 622. http://dx.doi.org/10.3390/en17030622.

Full text
Abstract:
The critical factors that affect bottomhole stick–slip vibrations during vertical drilling operations are thoroughly investigated and analyzed in this research. Influential factors, such as rotation speed, weight on bit (WOB), bottom hole assembly (BHA) configuration, and formation properties, were studied in order to understand their part in the stick–slip phenomena. The analysis is based on a thorough review of previous research conducted on stick–slip drilling vibrations. A mathematical model was created that not only explains axial vibrations but also includes the torsional vibrations pres
APA, Harvard, Vancouver, ISO, and other styles
17

Jerome, Trevor W., Maggie Kurdle, and Anthony Bonomo. "Sliding friction acoustics." Journal of the Acoustical Society of America 154, no. 4_supplement (2023): A73. http://dx.doi.org/10.1121/10.0022839.

Full text
Abstract:
Contact interactions generate acoustic energy in complicated ways, dictated by dozens of system parameters. The ability to accurately predict these stochastic friction forces and resultant acoustic energy from first principles is currently lacking. A summary of experimental tests with sliding and stick-slip of metal-on-metal contact are presented to provide insight into the influence of roughness, sliding velocity, and normal load on the generated acoustics. Normal load and normal displacement increase in dynamic amplitude under stick-slip conditions relative to smooth sliding. In the current
APA, Harvard, Vancouver, ISO, and other styles
18

Tang, Liping, Wei He, and Xiaohua Zhu. "The effect of high-frequency torsional impacts on the dynamic response of a drill string in a stick state." Advances in Mechanical Engineering 11, no. 3 (2019): 168781401982857. http://dx.doi.org/10.1177/1687814019828579.

Full text
Abstract:
Stick–slip vibration is common in the oil well drilling process and is detrimental to down-hole equipment and drilling efficiency. In recent years, a new type of drilling technology, torsional impact drilling, has been developed to mitigate the stick–slip phenomena, particularly in the drilling of deep or abrasive formations. With this drilling technique, high-frequency torsional impacts are generated and applied to the drill bit, providing the drill bit with auxiliary energy. By mitigating or suppressing the stick–slip vibration, part of the energy wasted as a result of vibration can be regai
APA, Harvard, Vancouver, ISO, and other styles
19

Fu, Meng, Jianghong Li, Aiqi Zhao, Yafeng Wu, Zuhao Chen, and Haowei Zhang. "Nonlinear Self-Excited Vibration Mechanism for Under-Actuated Oil-Well Drilling System with Stick-Slip Vibration." Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 37, no. 4 (2019): 802–8. http://dx.doi.org/10.1051/jnwpu/20193740802.

Full text
Abstract:
Exploration of oil or gas wells is usually carried out by using drilling system. When the kilometers of drilling system is externally disturbed, the drilling system is prone to undesired stick-slip vibration of the drill-string. The stick-slip vibration of the drill-string belongs to the nonlinear self-excited vibration. In order to study the vibration mechanism, the model for the nonlinear torque on the bit by using Karnopp friction model and the two degrees of freedom model for drilling system were established. The equivalent damping torque formula and the energy variation formula of the dri
APA, Harvard, Vancouver, ISO, and other styles
20

Macon, David J., and Gregory L. Anderson. "Kinetic energy corrections for slip-stick behavior in brittle adhesives." Journal of Applied Polymer Science 86, no. 8 (2002): 1821–28. http://dx.doi.org/10.1002/app.11090.

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

Harwood, Debra, and Diane R. Collier. "The matter of the stick: Storying/(re)storying children’s literacies in the forest." Journal of Early Childhood Literacy 17, no. 3 (2017): 336–52. http://dx.doi.org/10.1177/1468798417712340.

Full text
Abstract:
Children's intra-actions with the natural world offer an important lens to revisit notions of literacies. They allow for a decentring of humans – here children – as actors. Also, forest schools and nature-based learning programmes are increasingly erupting across North America, although more commonplace in Europe for a longer period. In this presentation of our research, we feature a storying/(re)storying of data from a yearlong research study of children's entanglements with the forest as a more-than-human world. We ask what we might learn if educators, children and researchers think with sti
APA, Harvard, Vancouver, ISO, and other styles
22

Keerthi, U. "IOT Based Smart Blind Stick." International Journal for Research in Applied Science and Engineering Technology 11, no. 5 (2023): 4031–35. http://dx.doi.org/10.22214/ijraset.2023.52550.

Full text
Abstract:
Abstract: People who are blind today must deal with several challenges in their daily lives. Using a blind stick to direct them and a buzzer to inform them with beeps is the new strategy that is presented in this system to assist them. Any object, including impediments, might be easily located with the use of an ultrasonic sensor. They could message a relative in case of any issues. In order to assist people who are blind or visually impaired, the "IoT based blind stick" project is proposed. This proposed system is implemented using Renesas. An IoT project is useful for the blind person and se
APA, Harvard, Vancouver, ISO, and other styles
23

Stark, Alyssa Y., Daniel M. Dryden, Jeffrey Olderman, et al. "Adhesive interactions of geckos with wet and dry fluoropolymer substrates." Journal of The Royal Society Interface 12, no. 108 (2015): 20150464. http://dx.doi.org/10.1098/rsif.2015.0464.

Full text
Abstract:
Fluorinated substrates like Teflon ® (poly(tetrafluoroethylene); PTFE) are well known for their role in creating non-stick surfaces. We showed previously that even geckos, which can stick to most surfaces under a wide variety of conditions, slip on PTFE. Surprisingly, however, geckos can stick reasonably well to PTFE if it is wet. In an effort to explain this effect, we have turned our attention to the role of substrate surface energy and roughness when shear adhesion occurs in media other than air. In this study, we removed the roughness component inherent to commercially available PTFE and t
APA, Harvard, Vancouver, ISO, and other styles
24

Yan, Baoyong, Jialin Tian, Xianghui Meng, and Zhe Zhang. "Stick–Slip Vibration Characteristics Study of the Drill String Based on PID Controller." Energies 16, no. 23 (2023): 7902. http://dx.doi.org/10.3390/en16237902.

Full text
Abstract:
In order to address the issue of drill string stick–slip vibration, which leads to drill bit wear and reduces the drilling velocity, we conducted a study on the characteristics of stick–slip vibration using a proportional-integral-derivative (PID) controller. By applying the principles of rigid body mechanics, we established a two-degree-of-freedom torsional dynamics equation and derived the first-order differential dynamics equation for the drill string. Subsequently, we designed a PID controller and obtained an equation for the control of stick–slip vibration. The research findings indicate
APA, Harvard, Vancouver, ISO, and other styles
25

Solanki, Vishal, Shubham Shirke, Vedant Mamulwar, Rohit Phalke, Chaitali Pote, and Prof Priyanka Fulsaundar. "A Research Paper on Smart Blind Stick." International Journal for Research in Applied Science and Engineering Technology 11, no. 4 (2023): 2691–94. http://dx.doi.org/10.22214/ijraset.2023.50761.

Full text
Abstract:
Abstract: The main objective of this article is to assist blind persons who have no human needs. Notably, anytime a blind person needs help, a hand is always there for them. The blind people's safety or ability to accomplish their goals isn't always guaranteed when they utilise this stick. The person may not feel any potential obstacles in their route if they use the stick. Notably, anytime a blind person needs help, a hand is always there for them. In any case, there is no assurance that using this stick will protect persons who are blind. The person using the support of the stick doesn't sen
APA, Harvard, Vancouver, ISO, and other styles
26

Saravanan, Harini, Joshitha M P, Kavya D, Kruthi M S, and Mr Anand M. "Smart Blind Stick using IOT." International Journal for Research in Applied Science and Engineering Technology 11, no. 1 (2023): 393–99. http://dx.doi.org/10.22214/ijraset.2023.48591.

Full text
Abstract:
Abstract: People suffering from certain permanent Accidental, paralyzing, or aging-related movement abilities frequently require assistance from others. In order to provide navigation assistance. We aim on integrating a smart blind stick with features like voice recognition technology to give voice commands and head- tilting which will control the motion of the blind stick. It also has some additional features such as fire sensors, water sensors, light sensors with buzzer alert and Ultrasonic sensor for obstacle detection. The result of this design will allow the special people to live a life
APA, Harvard, Vancouver, ISO, and other styles
27

Babu, Dr A. Veera. "Smart Blind Stick Using ESP32." International Journal for Research in Applied Science and Engineering Technology 12, no. 3 (2024): 3404–9. http://dx.doi.org/10.22214/ijraset.2024.59614.

Full text
Abstract:
Abstract: The Smart Blind Stick integrates ESP32 microcontroller, two ultrasonic sensors (middle and bottom), and a soil moisture sensor to enhance safety for visually impaired individuals. The middle ultrasonic sensor detects head-level obstacles, triggering a vibration motor for tactile feedback. The bottom ultrasonic sensor identifies potholes and manholes, activating a buzzer for audible alerts. A soil moisture sensor warns of wet surfaces through a speaker with IS 1820 IC, aiding users in avoiding hazards. This compact system enables proactive navigation, empowering users with improved si
APA, Harvard, Vancouver, ISO, and other styles
28

Hizni, Alina, Sholichin, and Samuel. "Community Empowerment Based on Food Processing Technology Tempe Becomes Tempe Stick." Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat 4, no. 2 (2018): 135. http://dx.doi.org/10.29244/agrokreatif.4.2.135-142.

Full text
Abstract:
Tempe is one of the processed products of soybeans. Tempe can be further processed into tempe stick by the community through science and technology based entrepreneurship. The targets of this activities are community empowerment in product development, entrepreneurship training and earning extra income. The output of this activities is the diversification of food in the form of healthy food products such as tempe stick. The activities consists of 1) preparation stage (Formulation of formula, analysis of nutritional content of best formula, and manufacture of packaging design and product label)
APA, Harvard, Vancouver, ISO, and other styles
29

Zhan, Hao, Xinfeng Tan, Guoxin Xie, and Dan Guo. "Load-dependent energy dissipation induced by the tip–membrane friction on suspended 2D materials." Physical Chemistry Chemical Physics 23, no. 35 (2021): 19819–26. http://dx.doi.org/10.1039/d1cp02610k.

Full text
APA, Harvard, Vancouver, ISO, and other styles
30

Li, Z. X., Q. J. Cao, and A. Léger. "Threshold of Multiple Stick-Slip Chaos for an Archetypal Self-Excited SD Oscillator Driven by Moving Belt Friction." International Journal of Bifurcation and Chaos 27, no. 01 (2017): 1750009. http://dx.doi.org/10.1142/s0218127417500092.

Full text
Abstract:
In this paper, we investigate the multiple stick-slip chaotic motion of an archetypal self-excited smooth and discontinuous (SD) oscillator driven by moving belt friction, which is constructed with the SD oscillator and the classical moving belt. The friction force between the mass and the belt is modeled as a Coulomb friction for this system. The energy introduction or dissipation during the slip and stick modes in the system is analyzed. The analytical expressions of homoclinic orbits of the unperturbed SD oscillator are derived by using a special coordinate transformation without any pronom
APA, Harvard, Vancouver, ISO, and other styles
31

Zhao, Hui, Yi Long Zhou, Hong Yuan Zhu, and Qing Wen Wang. "Ultrasonic Welding Performance Analysis of Wood-Flour/PP Composites." Advanced Materials Research 183-185 (January 2011): 2288–92. http://dx.doi.org/10.4028/www.scientific.net/amr.183-185.2288.

Full text
Abstract:
In order to analyze the possibility of ultrasonic welding of wood-plastic composites, wood-flour(WF)/ polypropylene(PP) composite was ultrasonic welded, which contained 60%WF, 36%PP and 4% maleic anhydride grafted PP. The ultrasonic welding performance was evaluated by tensile tests and scanning electronic microscopy(SEM). The triangle energy direct stick was used in the ultrasonic welding. The results showed that WF/PP composite was successfully ultrasonic welded directly, while in the presence of energy direct stick, the strength of the welded joint was even better than the composite itself.
APA, Harvard, Vancouver, ISO, and other styles
32

Berger, E. J., and C. M. Krousgrill. "On Friction Damping Modeling Using Bilinear Hysteresis Elements." Journal of Vibration and Acoustics 124, no. 3 (2002): 367–75. http://dx.doi.org/10.1115/1.1473831.

Full text
Abstract:
Massless bilinear hysteresis elements are often used to model frictional energy dissipation in dynamic systems. These quasi-static elements possess only two describing parameters, the damper stiffness and the force at which it slips. Bilinear hysteresis elements capture the qualitative nature of friction-damped forced response, but sometimes have difficulty with quantitative comparisons. This paper examines the performance of massless bilinear hysteresis elements as well as the role of damper mass in energy dissipation, and specifically evaluates its influence on the kinematic state of the dam
APA, Harvard, Vancouver, ISO, and other styles
33

Sun, Zhilin, Xin Meng, and Yubao Zhou. "Velocity and turbulence affected by various vegetations in open channel." E3S Web of Conferences 248 (2021): 03078. http://dx.doi.org/10.1051/e3sconf/202124803078.

Full text
Abstract:
Water energy is a conventional source of source that is widely available in nature. It can be easily converted into high quality secondary energy-electric energy through hydroelectric power stations. Hydropower is not only a widely used conventional energy source, but also a renewable energy source. Moreover, hydroelectric power has no pollution to the environment. Therefore, water energy is an inexhaustible and high-quality energy source among many energy sources in the world. However, vegetation can change flow structure and turbulence characteristics, impacting the use of water energy. In p
APA, Harvard, Vancouver, ISO, and other styles
34

Couderc, Elsa. "Energy Focus: Peel-and-stick method transfers thin-film solar cells." MRS Bulletin 38, no. 3 (2013): 199. http://dx.doi.org/10.1557/mrs.2013.66.

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

Maugis, D. "Subcritical crack growth, surface energy, fracture toughness, stick-slip and embrittlement." Journal of Materials Science 20, no. 9 (1985): 3041–73. http://dx.doi.org/10.1007/bf00545170.

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

Hoffmann, Norbert. "Transient Growth and Stick-Slip in Sliding Friction." Journal of Applied Mechanics 73, no. 4 (2005): 642–47. http://dx.doi.org/10.1115/1.2165233.

Full text
Abstract:
In linearly stable dynamical systems the non-normality of the corresponding linear operator is known to lead to transient growth of characteristic quantities, like, e.g., energy. For sliding friction systems it is shown in the present paper that this transient growth also applies to the sliding velocity and that under certain conditions this mechanism can lead to stick-slip limit-cycles in linearly stable system configurations.
APA, Harvard, Vancouver, ISO, and other styles
37

Cayeux, E., A. Ambrus, L. Øy, et al. "Analysis of Torsional Stick-Slip Situations from Recorded Downhole Rotational Speed Measurements." SPE Drilling & Completion 36, no. 03 (2021): 560–74. http://dx.doi.org/10.2118/199678-pa.

Full text
Abstract:
Summary The use of recorded downhole rotational speed measurements with a bandwidth up to 9 Hz gives new insights into the conditions under which stick-slip torsional oscillations occur. Observations made while drilling two reservoir sections have shown that, out of all the stick-slip situations identified, 72% of them for one well and 64% for the other well occurred in off-bottom conditions. In these off-bottom conditions, stick-slip was systematically observed while starting the topdrive (TD) until a sufficiently high TD rotational velocity was requested. For these two sections, off-bottom s
APA, Harvard, Vancouver, ISO, and other styles
38

Park, Hyunggon, Seungho Kim, Hope A. Gruszewski, David G. Schmale, Jonathan B. Boreyko, and Sunghwan Jung. "Dynamics of splashed droplets impacting wheat leaves treated with a fungicide." Journal of The Royal Society Interface 17, no. 168 (2020): 20200337. http://dx.doi.org/10.1098/rsif.2020.0337.

Full text
Abstract:
Wheat is threatened by diseases such as leaf rust. One significant mechanism of disease spread is the liberation and dispersal of rust spores due to rainsplash. However, it is unclear to what extent the spore-laden splashed droplets can transmit the disease to neighbouring leaves. Here, we show that splashed droplets either bounce or stick, depending on the orientation of the leaf and whether the surface of the leaf has been treated with a fungicide. A scaling model revealed that bouncing was enabled when the droplet’s kinetic energy exceeded its pinning energy to the surface. Our findings ind
APA, Harvard, Vancouver, ISO, and other styles
39

Kamal, Priyansh, Sudhir kumar Chaurasiya, Yash Saini, and Manoj Kumar Yadav. "A Smart Stick for Assisting Blind Peoples." International Journal for Research in Applied Science and Engineering Technology 10, no. 3 (2022): 2042–45. http://dx.doi.org/10.22214/ijraset.2022.41050.

Full text
Abstract:
Abstract: In this paper, we introduce a smart stick system for assisting blind people. The smart stick comes as a proposed solution to enable visually impaired people to find difficulties in detecting obstacles and dangers in front of them during walking and to identify the world around. The system is designed to act like an artificial vision and alarm unit. The system consists of three sensors: ultrasonic sensor, water sensor, and heat flame sensor, microcontroller (Arduino Uno R3) to receive the sensor signals and process them into short pulses to the Arduino pins where buzzers and led bulb
APA, Harvard, Vancouver, ISO, and other styles
40

Milton, John, Ryan Meyer, Max Zhvanetsky, Sarah Ridge, and Tamás Insperger. "Control at stability's edge minimizes energetic costs: expert stick balancing." Journal of The Royal Society Interface 13, no. 119 (2016): 20160212. http://dx.doi.org/10.1098/rsif.2016.0212.

Full text
Abstract:
Stick balancing on the fingertip is a complex voluntary motor task that requires the stabilization of an unstable system. For seated expert stick balancers, the time delay is 0.23 s, the shortest stick that can be balanced for 240 s is 0.32 m and there is a ° dead zone for the estimation of the vertical displacement angle in the saggital plane. These observations motivate a switching-type, pendulum–cart model for balance control which uses an internal model to compensate for the time delay by predicting the sensory consequences of the stick's movements. Numerical simulations using the semi-dis
APA, Harvard, Vancouver, ISO, and other styles
41

Ristanti, Ety Yuni, and Muhammad Asrar. "Formulation of stick laor (Eunice viridis) as an alternative food supplement for toddlers in stunting prevention." Journal of Drug Delivery and Therapeutics 12, no. 4 (2022): 104–11. http://dx.doi.org/10.22270/jddt.v12i4.5593.

Full text
Abstract:
Adequate nutrition is needed as the basic capital of the child's growth and development process, especially protein. The occurrence of malnutrition conditions will affect the achievement of perfect growth. Based on this phenomenon, it is necessary to fulfill nutritional needs, especially the consumption of foods rich in energy and protein as well as micronutrients. Local food sources of energy and protein produced from Maluku Province are enbal, laor and moringa leaves. Laor (Eunice viridis) contains 29.8% protein, contains essential and non-essential amino acids, 229.26 mg calcium, 2.439 mg z
APA, Harvard, Vancouver, ISO, and other styles
42

Inamadar, Dr Sharanabasava. "Stick for Helping the Blind Person." International Journal for Research in Applied Science and Engineering Technology 10, no. 1 (2022): 918–21. http://dx.doi.org/10.22214/ijraset.2022.39923.

Full text
Abstract:
Abstract: As we all know that sense of vision to person is a crucial factor in our life, however there's some folks that have lack of quality as a result of sightlessness the target of this project is employed to assist the blind individuals and that they square measure able to simply move with the physical world by exploitation this sensible blind stick. concerning 285 million individuals square measure visually impaired worldwide: thirty-nine million square measure blind and 246 million have low vision. If you notice them, you'll be able to all right fathom it they can’t walk while not the a
APA, Harvard, Vancouver, ISO, and other styles
43

Grzelczyk, Dariusz, Bartosz Stańczyk, and Jan Awrejcewicz. "On the Hexapod Leg Control with Nonlinear Stick-Slip Vibrations." Applied Mechanics and Materials 801 (October 2015): 12–24. http://dx.doi.org/10.4028/www.scientific.net/amm.801.12.

Full text
Abstract:
In the paper the control problem of the six-legged walking robot is studied. In order to find the relationship between commonly used by insects gaits (trajectory of the foot point) and stable trajectory of mechanical systems, at first we analyse various previous papers and the gaits of the real insects. For control the motion of the tip of the robot leg a nonlinear mechanical oscillator describing stick-slip induced vibrations further referred as central pattern generator (CPG) has been proposed. The advantages of the proposed model has been presented and compared with other previous applied m
APA, Harvard, Vancouver, ISO, and other styles
44

Wang, D. W., M. X. Liu, W. J. Qian, X. Wu, Q. Ma, and Z. Q. Wu. "Parametrical Investigation of Piezoelectric Energy Harvesting via Friction-Induced Vibration." Shock and Vibration 2020 (February 19, 2020): 1–32. http://dx.doi.org/10.1155/2020/6190215.

Full text
Abstract:
In this work, piezoelectric energy harvesting performance via friction-induced vibration is investigated numerically. A one-degree-of-freedom friction system with a piezoelectric element is proposed, to study the piezoelectric energy harvesting via friction-induced stick-slip vibration. Subsequently, a two-degree-of-freedom friction system with two piezoelectric elements is proposed, to investigate the piezoelectric energy harvesting via model coupling vibration. Results show that regardless of the friction systems, it is feasible to convert friction-induced vibration energy to electrical ener
APA, Harvard, Vancouver, ISO, and other styles
45

He, Jingjing, Huiqin Wang, Rui Liu, et al. "Research on Rejoining Bone Stick Fragment Images: A Method Based on Multi-Scale Feature Fusion Siamese Network Guided by Edge Contour." Applied Sciences 14, no. 2 (2024): 717. http://dx.doi.org/10.3390/app14020717.

Full text
Abstract:
The rejoining of bone sticks holds significant importance in studying the historical and cultural aspects of the Han Dynasty. Currently, the rejoining work of bone inscriptions heavily relies on manual efforts by experts, demanding a considerable amount of time and energy. This paper introduces a multi-scale feature fusion Siamese network guided by edge contour (MFS-GC) model. Constructing a Siamese network framework, it first uses a residual network to extract features of bone sticks, which is followed by computing the L2 distance for similarity measurement. During the extraction of feature v
APA, Harvard, Vancouver, ISO, and other styles
46

Maaz javed. "Asia-Pacific Resilience: Evaluating Energy Market, Financial Market and Black Swan Event Policy Responses." Journal of Information Systems Engineering and Management 10, no. 54s (2025): 437–49. https://doi.org/10.52783/jisem.v10i54s.11131.

Full text
Abstract:
In response to the onset of any black swan event i.e., COVID-19, the governments of global economies were prompted to implement stringent policies, overwhelming the extent and intensity of past pandemics e.g. Spanish Flu and the 1957-58 influenza outbreak to name the few. This study is an attempt to analyze the impact of the government stringent policies on oil price, exchange rates, stick returns, and commodity prices in order to combat the mortality rate of COVID-19. Our results illustrate that the commodity prices leave more definite impressions as compared to oil prices and exchange rates,
APA, Harvard, Vancouver, ISO, and other styles
47

Fu, Yonghong, Jie Yang, Hao Wang, and Yuyang He. "Effect of laser-textured micro dimples on inhibition of stick-slip phenomenon of sliding guideway." Industrial Lubrication and Tribology 74, no. 1 (2022): 34–44. http://dx.doi.org/10.1108/ilt-08-2021-0339.

Full text
Abstract:
Purpose This study aims to investigate the efficacy of micro dimple in inhibiting stick-slip phenomenon on the sliding guideway. Design/methodology/approach In this study, micro-dimples were fabricated by laser on surfaces of steel disk and guideway. The disks and guideways were respectively performed pin-on-disk tribological tests and working condition experiments to study differences in lubrication condition and friction stability between textured and untextured surfaces. Findings Micro-dimples help reduce critical sliding speed that allows contact surfaces to enter in hydrodynamic lubricati
APA, Harvard, Vancouver, ISO, and other styles
48

Sarkar, Jayanto Kumar, and Qingyue Wang. "Characterization of Pyrolysis Products and Kinetic Analysis of Waste Jute Stick Biomass." Processes 8, no. 7 (2020): 837. http://dx.doi.org/10.3390/pr8070837.

Full text
Abstract:
Thermochemical process of biomass is being considered as a latest technique for the restoration of energy source and biochemical products. In this study, the influence of the different heating rates on pyrolysis behaviors and kinetic of jute stick were investigated to justify the waste jute stick biomass as a potential source of bioenergy. Pyrolysis experiments were carried out at four several heating rates of 10, 20, 30 and 40 °C/min, by utilizing the thermogravimetric analyzer (TG-DTA) and a fixed-bed pyrolysis reactor. Two different kinetic methods, Kissinger–Akahira–Sunose (KAS) and Ozawa–
APA, Harvard, Vancouver, ISO, and other styles
49

Li, Hua, Mark W. Rutland, Masayoshi Watanabe, and Rob Atkin. "Boundary layer friction of solvate ionic liquids as a function of potential." Faraday Discussions 199 (2017): 311–22. http://dx.doi.org/10.1039/c6fd00236f.

Full text
Abstract:
Atomic force microscopy (AFM) has been used to investigate the potential dependent boundary layer friction at solvate ionic liquid (SIL)–highly ordered pyrolytic graphite (HOPG) and SIL–Au(111) interfaces. Friction trace and retrace loops of lithium tetraglyme bis(trifluoromethylsulfonyl)amide (Li(G4) TFSI) at HOPG present clearer stick-slip events at negative potentials than at positive potentials, indicating that a Li<sup>+</sup> cation layer adsorbed to the HOPG lattice at negative potentials which enhances stick-slip events. The boundary layer friction data for Li(G4) TFSI shows that at HO
APA, Harvard, Vancouver, ISO, and other styles
50

Johnson, Arthur R., and Ross G. Stacer. "Rubber Viscoelasticity Using the Physically Constrained System's Stretches as Internal Variables." Rubber Chemistry and Technology 66, no. 4 (1993): 567–77. http://dx.doi.org/10.5254/1.3538329.

Full text
Abstract:
Abstract The simulation of rubber viscoelasticity with the tube reptation model for topological interactions is investigated for large dynamic strains. The chemically crosslinked (CC) system of molecules acts as a constraint box per unit volume for the physically constrained (PC) system and carries the PC system during the deformation process. A stick—slip model is used to simulate the interaction between the CC and PC systems Stretch ratios describe the history of the PC system's energy. Rubber energy density functions for both the CC and time dependent PC systems are shown to model large str
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!