Artículos de revistas sobre el tema "Frequency pulling"

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1

Unnerstall, T. y A. Rieckers. "Frequency pulling in Josephson radiation". Physical Review B 45, n.º 17 (1 de mayo de 1992): 10115–18. http://dx.doi.org/10.1103/physrevb.45.10115.

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2

Willetts, M., M. Le Gros, A. Kotlicki, G. Eska, C. E. Johnson y B. G. Turrell. "NMR frequency pulling in magnetic systems". Czechoslovak Journal of Physics 46, S4 (abril de 1996): 2167–68. http://dx.doi.org/10.1007/bf02571075.

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3

Yokoyama, Shuko, Tsutomu Araki y Norihito Suzuki. "Intermode beat stabilized laser with frequency pulling". Applied Optics 33, n.º 3 (20 de enero de 1994): 358. http://dx.doi.org/10.1364/ao.33.000358.

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4

Nusinovich, Gregory S., Li Luo y Pu-Kun Liu. "Linear theory of frequency pulling in gyrotrons". Physics of Plasmas 23, n.º 5 (mayo de 2016): 053111. http://dx.doi.org/10.1063/1.4949762.

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5

Sancheti, S. "Active antenna top-cover frequency pulling effects". IEE Proceedings - Microwaves, Antennas and Propagation 141, n.º 5 (1994): 374. http://dx.doi.org/10.1049/ip-map:19941433.

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6

Kariya, Tsuyoshi, Teruo Saito, Yasuhito Kiwamoto, Haruhisa Gotoh y Syoichi Miyoshi. "Observation of Frequency Pulling Effect in Gyrotron". Japanese Journal of Applied Physics 25, Part 1, No. 4 (20 de abril de 1986): 654–55. http://dx.doi.org/10.1143/jjap.25.654.

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7

Lindberg, Åsa M. "Mode frequency pulling in He–Ne lasers". American Journal of Physics 67, n.º 4 (abril de 1999): 350–53. http://dx.doi.org/10.1119/1.19261.

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8

Herrero, Ramon y Daniel Hennequin. "Anomalous frequency pulling in the photorefractive oscillators". Physical Review A 60, n.º 2 (1 de agosto de 1999): 1679–86. http://dx.doi.org/10.1103/physreva.60.1679.

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9

Fujii, Muneaki. "Thermometry below 1K using NMR frequency pulling". Physica B: Condensed Matter 165-166 (agosto de 1990): 29–30. http://dx.doi.org/10.1016/s0921-4526(90)80864-f.

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10

Bize, S., Y. Sortais, C. Mandache, A. Clairon y C. Salomon. "Cavity frequency pulling in cold atom fountains". IEEE Transactions on Instrumentation and Measurement 50, n.º 2 (abril de 2001): 503–6. http://dx.doi.org/10.1109/19.918177.

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11

Boccard, J. M., P. Katus, R. Renevier, L. M. Reindl y J. M. Friedt. "Near-field interrogation of SAW resonators on rotating machinery". Journal of Sensors and Sensor Systems 2, n.º 2 (17 de septiembre de 2013): 147–56. http://dx.doi.org/10.5194/jsss-2-147-2013.

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Abstract. Surface acoustic wave (SAW) resonators electrically behave like LCR circuits, their frequency can be influenced by temperature, pressure and torque. When they are used for passive wireless sensing on rotating machinery, they can also be influenced by the angular variations of the coupling between the coupler elements and the receiving coupler element impedance. This parasitic frequency shift is known as the "pulling effect". In this paper, we present a capacitive coupler based on open coplanar strip lines for physical measurements on a small diameter rotating shaft. This approach allows a single 434 MHz resonator angular frequency pulling lower than 200 Hz (0.46 ppm) and 100 Hz (0.23 ppm) in a differential configuration. This is more than 10 times lower compared to frequency pulling obtained using couplers based on circular and electrically shorted transmission lines. RADAR-based interrogation, finite element method (FEM) simulation, coupler parameters and frequency pulling measurements results are presented to demonstrate the performances of the complete system.
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12

Al-Hosiny, Najm M. "Frequency Pulling and the Linewidth Enhancement Factor in Optically Injected Semiconductor Laser". Photonics 9, n.º 11 (17 de noviembre de 2022): 866. http://dx.doi.org/10.3390/photonics9110866.

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The effect of the linewidth enhancement factor (LEF) on the frequency pulling behavior in optically injected lasers is theoretically investigated. The frequency pulling is found to be exponentially dependent on the LEF. This dependence is systematically revealed and explained.
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13

Tanabe, Takeshi, Hiroshi Endo y Shuichi Ino. "Effects of Asymmetric Vibration Frequency on Pulling Illusions". Sensors 20, n.º 24 (10 de diciembre de 2020): 7086. http://dx.doi.org/10.3390/s20247086.

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It is known that humans experience a haptic illusion, such as the sensation of being pulled in a particular direction, when asymmetric vibrations are presented. A pulling illusion has been used to provide a force feedback for a virtual reality (VR) system and a pedestrian navigation system, and the asymmetric vibrations can be implemented in any small non-grounded device. However, the design methodology of asymmetric vibration stimuli to induce the pulling illusion has not been fully demonstrated. Although the frequency of the asymmetric vibration is important, findings on the frequency have not been reported. In this study, we clarified the influences of the effects on the pulling illusion based on the investigation of asymmetric vibration frequency differences. Two psychophysical experiments that related to the frequency of asymmetric vibration were performed. Experiment I showed that the illusion occurs for specific vibration waveforms at 40 Hz and 75 Hz. As a result of Experiment II, the threshold was the lowest when the frequency was 40 Hz, and highest when the frequency was 110 Hz. This result supports the previous hypothesis that the Meissner corpuscles and the Ruffini endings contribute to the illusion, while the Pacinian corpuscles do not.
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14

Lin, H. B., J. D. Eversole y A. J. Campillo. "Frequency pulling of stimulated Raman scattering in microdroplets". Optics Letters 15, n.º 7 (1 de abril de 1990): 387. http://dx.doi.org/10.1364/ol.15.000387.

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15

Peria, W. K., H. Yu, S. Lee, I. Takeuchi y P. A. Crowell. "Two-magnon frequency-pulling effect in ferromagnetic resonance". Applied Physics Letters 117, n.º 17 (26 de octubre de 2020): 172401. http://dx.doi.org/10.1063/5.0024576.

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16

Shirley, J. H., T. P. Heavner y S. R. Jefferts. "First-Order Sideband Pulling in Atomic Frequency Standards". IEEE Transactions on Instrumentation and Measurement 58, n.º 4 (abril de 2009): 1241–46. http://dx.doi.org/10.1109/tim.2008.2008590.

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17

Nicati, P. A., K. Toyama, S. Huang y H. J. Shaw. "Frequency pulling in a Brillouin fiber ring laser". IEEE Photonics Technology Letters 6, n.º 7 (julio de 1994): 801–3. http://dx.doi.org/10.1109/68.311459.

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18

Jyu, Siao-Shan y Yinchieh Lai. "Repetition frequency pulling effects in asynchronous mode-locking". Optics Letters 38, n.º 3 (28 de enero de 2013): 347. http://dx.doi.org/10.1364/ol.38.000347.

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19

Ábrahám, T. O., J. S. Bakos, Z. Sörlei y J. Tar. "Frequency pulling in optically-pumped FIR methanol lasers". Infrared Physics 25, n.º 1-2 (febrero de 1985): 77–86. http://dx.doi.org/10.1016/0020-0891(85)90059-4.

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20

Benson, Stephen V. y John M. J. Madey. "Transverse mode frequency pulling in free electron lasers". Optics Communications 56, n.º 3 (diciembre de 1985): 212–18. http://dx.doi.org/10.1016/0030-4018(85)90119-1.

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21

Cutler, L. S., C. A. Flory, R. P. Giffard y A. De Marchi. "Frequency pulling by hyperfine σ transitions in cesium beam atomic frequency standards". Journal of Applied Physics 69, n.º 5 (marzo de 1991): 2780–92. http://dx.doi.org/10.1063/1.348637.

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22

Sarkar, Jayjeet, Abhijit Banerjee y Baidyanath Biswas. "Analysis of frequency pulling phenomenon in an optoelectronic oscillator". Optical Engineering 57, n.º 06 (11 de junio de 2018): 1. http://dx.doi.org/10.1117/1.oe.57.6.067102.

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23

Luo, Li, Chao-Hai Du, Ming-Guang Huang y Pu-Kun Liu. "Frequency pulling in a low-voltage medium-power gyrotron". Physics of Plasmas 25, n.º 4 (abril de 2018): 043103. http://dx.doi.org/10.1063/1.5027639.

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24

Sun, Tingting, Zhihua Zhang, Jixin Yang, Jingnan Yang y Xuan Zhang. "Dynamic Characteristics of the Surrounding Soil during the Vibrational Pulling Process of a Pile Based on DEM". Shock and Vibration 2020 (12 de marzo de 2020): 1–18. http://dx.doi.org/10.1155/2020/5092102.

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When bridge construction has been completed, the temporary support system, such as a steel-pipe pile, is dismantled, and problems that are related to the steel-pipe piles pulling from the strata are encountered. It is difficult to measure the dynamic characteristics of the surroundings during the deep pile-pulling process. A numerical model of the pulling pile is established by using the discrete element method (DEM). A sinusoidal dynamic load is executed on the pile with various vibrational frequencies. The stress, bond, coordination number, porosity, and velocity field distribution of the surrounding soil during the pile-pulling process are studied. The results demonstrate that, during the pile-pulling process, the shearing state of the surrounding soil depends on the position of the pile. The number and area of bond fractures gradually increase, the coordination number decreases, and the porosity gradually increases when the pile-pulling distance increases. Under a vibrational load, the area that corresponds to particles with large velocity and displacement expands with the increase of the vibrational frequency. The major influence zone of the pile pulling on both sides is concentrated within 6dpile, which can be used to evaluate the safety of the existing bridge nearby during pile pulling.
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25

Li, Xiao, Jun Chen, Zhifang Lin y Jack Ng. "Optical pulling at macroscopic distances". Science Advances 5, n.º 3 (marzo de 2019): eaau7814. http://dx.doi.org/10.1126/sciadv.aau7814.

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Optical tractor beams, proposed in 2011 and experimentally demonstrated soon after, offer the ability to pull particles against light propagation. It has attracted much research and public interest. Yet, its limited microscopic-scale range severely restricts its applicability. The dilemma is that a long-range Bessel beam, the most accessible beam for optical traction, has a small half-cone angle, θ0, making pulling difficult. Here, by simultaneously using several novel and compatible mechanisms, including transverse isotropy, Snell’s law, antireflection coatings (or impedance-matched metamaterials), and light interference, we overcome this dilemma and achieve long-range optical pulling at θ0≈ 1°. The range is estimated to be 14 cm when using ~1 W of laser power. Thus, macroscopic optical pulling can be realized in a medium or in a vacuum, with good tolerance of the half-cone angle and the frequency of the light.
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26

Yi, Cannan, Fan Tang, Kaiway Li, Hong Hu, Huali Zuo y Caijun Zhao. "Effects of Pause Design on the Decline in Pulling Effort and the Evaluation of Perceived Effort in Pulling Tasks". Applied Sciences 11, n.º 24 (17 de diciembre de 2021): 12022. http://dx.doi.org/10.3390/app112412022.

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Pulling is one of the manual material handling activities that could lead to work-related musculoskeletal disorders. The objectives of this study were to explore the development of muscular fatigue when performing intermittent pulling tasks and to establish models to predict the pull strength decrease due to performing the tasks. A simulated truck pulling experiment was conducted. Eleven healthy male adults participated. The participants pulled a handle with a load of 40 kg, which resulted in a pulling force of approximately 123 N. The pulling tasks lasted for 9 or 12 min with one, two, or three pauses embedded. The total time period of the embedded pauses was 3 min. The pull strength after each pull and rest was measured. Ratings of the perceived exertion on body parts after each pull were also recorded. The results showed insignificant differences regarding the development of muscular fatigue related to rest frequency. We found that the development of muscular fatigue for pulling tasks with embedded pauses was significantly slower than that for continuous pulls. The forearm had a higher CR-10 score than the other body parts indicating that the forearm was the body part suffering early muscle fatigue. An exponential model was developed to predict the pull strength of the pulling tasks with embedded pauses. This model may be used to assess the developing of muscular fatigue for pulling tasks.
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27

Buonomo, Antonio y Alessandro Lo Schiavo. "Investigation on Locking and Pulling Modes in Analog Frequency Dividers". Journal of Electrical and Computer Engineering 2013 (2013): 1–9. http://dx.doi.org/10.1155/2013/246742.

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We compare the main analytical results available to estimate the locking range, which is the key figure-of-merit ofLCfrequency dividers based on the injection locking phenomenon. Starting from the classical result by Adler concerning injection-locked oscillators, we elucidate the merits and the shortcomings of the different approaches to study injection-locked frequency dividers, with particular emphasis on divider-by-2. In particular, we show the potential of a perturbation approach which enables a more complete analysis of frequency dividers, making it possible to calculate not only the amplitude and the phase of the locked oscillation, but also the region where it exists and is stable, which defines the locking region. Finally, we analyze the dynamical behaviour of the dividers in the vicinity of the boundary of the locking region, showing that there exists a border region where the occurrence of the locking or the pulling operation mode is possible, depending on the initial conditions of the system.
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28

Allaria, E., M. Danailov y G. De Ninno. "Tunability of a seeded free-electron laser through frequency pulling". EPL (Europhysics Letters) 89, n.º 6 (1 de marzo de 2010): 64005. http://dx.doi.org/10.1209/0295-5075/89/64005.

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29

Liu, Jia-Ren y Wei-Chang Li. "Temperature-compensated CMOS-MEMS resonators via electrical stiffness frequency pulling". Journal of Micromechanics and Microengineering 30, n.º 1 (13 de noviembre de 2019): 014002. http://dx.doi.org/10.1088/1361-6439/ab50ef.

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30

Lawandy, N. M., G. A. Koepf y D. L. MacFarlane. "Frequency pulling in far-infrared lasers that exhibit pressure shifts". Infrared Physics 25, n.º 6 (noviembre de 1985): 751–54. http://dx.doi.org/10.1016/0020-0891(85)90042-9.

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31

Wang Zhiguo, 汪之国, 龙兴武 Long Xingwu, 梁晶 Liang Jing y 王飞 Wang Fei. "Influence of Mode Pulling Effect on Beat Frequency in Dual-Frequency He-Ne Laser". Acta Optica Sinica 30, n.º 10 (2010): 2941–46. http://dx.doi.org/10.3788/aos20103010.2941.

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32

Fischer, B. "Frequency pulling by hyperfine sigma-transitions in the conventional laboratory frequency standards of the PTB". Metrologia 38, n.º 2 (abril de 2001): 115–23. http://dx.doi.org/10.1088/0026-1394/38/2/3.

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33

Menyuk, Curtis R., Jared K. Wahlstrand, John Willits, Ryan P. Smith, Thomas R. Schibli y Steven T. Cundiff. "Pulse dynamics in mode-locked lasers: relaxation oscillations and frequency pulling". Optics Express 15, n.º 11 (2007): 6677. http://dx.doi.org/10.1364/oe.15.006677.

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34

Siemsen, K. J., A. A. Madej y J. Reid. "Narrow gain spikes and frequency pulling in the midinfrared ammonia laser". IEEE Journal of Quantum Electronics 27, n.º 5 (mayo de 1991): 1199–206. http://dx.doi.org/10.1109/3.83377.

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35

Remo, John L. "Effect of aberrations and perturbations on frequency pulling and anomalous dispersion". Applied Optics 25, n.º 18 (15 de septiembre de 1986): 3004. http://dx.doi.org/10.1364/ao.25.003004.

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36

Allaria, E., G. De Ninno y C. Spezzani. "Experimental demonstration of frequency pulling in single-pass free-electron lasers". Optics Express 19, n.º 11 (16 de mayo de 2011): 10619. http://dx.doi.org/10.1364/oe.19.010619.

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37

Law, V. J. "Process-induced oscillator frequency pulling and phase noise within plasma systems". Vacuum 82, n.º 6 (febrero de 2008): 630–38. http://dx.doi.org/10.1016/j.vacuum.2007.10.001.

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38

De Marchi, A. "Rabi Pulling and Long-Term Stability in Cesium Beam Frequency Standards". IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control 34, n.º 6 (noviembre de 1987): 598–601. http://dx.doi.org/10.1109/t-uffc.1987.26989.

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39

Buonomo, Antonio y Alessandro Lo Schiavo. "Evaluating the Spectrum of Unlocked Injection Frequency Dividers in Pulling Mode". Entropy 15, n.º 12 (25 de septiembre de 2013): 4026–41. http://dx.doi.org/10.3390/e15104026.

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40

Bao, Chengying y Changxi Yang. "Mode-pulling and phase-matching in broadband Kerr frequency comb generation". Journal of the Optical Society of America B 31, n.º 12 (18 de noviembre de 2014): 3074. http://dx.doi.org/10.1364/josab.31.003074.

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41

Yokoyama, Shuko, Tsutomu Araki y Norihito Suzuki. "Frequency stabilization by frequency pulling for single‐mode oscillation of He–Ne laser at maximum intensity". Review of Scientific Instruments 66, n.º 4 (abril de 1995): 2788–95. http://dx.doi.org/10.1063/1.1145556.

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42

Bauch, A., K. Dorenwendt y T. Heindorff. "The PTB's Atomic Frequency Standards CS2 and CSX: Frequency Shifts by Pulling due to Neighbouring Transitions". Metrologia 24, n.º 4 (1 de enero de 1987): 199–203. http://dx.doi.org/10.1088/0026-1394/24/4/008.

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43

Giuliani, G., G. Salvetti y E. Palange. "Observation of strong frequency pulling in resonators employing multipass interferometric output couplers". Optics Letters 11, n.º 4 (1 de abril de 1986): 207. http://dx.doi.org/10.1364/ol.11.000207.

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44

Seo, Dae Han y Sin Hyuk Yim. "Frequency pulling effect of an intraloop atomic filter in an optoelectronic oscillator". Applied Optics 56, n.º 3 (19 de enero de 2017): 666. http://dx.doi.org/10.1364/ao.56.000666.

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45

Shanahan, S. T. y N. R. Heckenberg. "Frequency pulling in an optically pumped submillimeter laser by Doppler induced dispersion". International Journal of Infrared and Millimeter Waves 8, n.º 6 (junio de 1987): 637–46. http://dx.doi.org/10.1007/bf01010635.

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46

Ciriello, Vincent M. "The Effects of Distance on Psychophysically Determined Pushing and Pulling Tasks". Proceedings of the Human Factors and Ergonomics Society Annual Meeting 46, n.º 13 (septiembre de 2002): 1142–46. http://dx.doi.org/10.1177/154193120204601329.

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The most frequent and expensive cause category of compensable loss is manual material handling (MMH). in an attempt to minimize these losses, refinement of existing MMH guidelines is a component of redesigning high risk MMH jobs. in the development of our present MMH guidelines (Snook & Ciriello, 1991), maximum acceptable forces (MAFs) of pulling were assumed to respond similarly to pushing at longer distances. The purpose of this experiment was to investigate the effects of 7.6m and 15.2m distances on both initial and sustained MAFs of pushing and pulling at a frequency of 1 min−1. A psychophysical methodology was used whereby the subjects were asked to select a workload without “straining themselves or without becoming unusually tired, weakened, overheated or out of breath.” Subjects worked 40 min at each push or pull task within a 4-hour test that included other MMH tasks. The results revealed that initial and sustained MAFs and task time were not significantly different between pushing and pulling at the 7.6m distance. However, at the 15.2m distance, initial MAF of pulling was significantly lower and task time was significantly longer compared to pushing. Sustained MAF was not significantly different at 15.2m. It was concluded that our existing guidelines present an accurate estimate of MAFs at the longer pull distances.
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47

Francis, B., S. T. Jambunathan y J. S. Gill. "Asenapine in the treatment of trichotillomania with comorbid bipolar disorder: A case report". European Psychiatry 41, S1 (abril de 2017): S683. http://dx.doi.org/10.1016/j.eurpsy.2017.01.1186.

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Trichotillomania has been found to be associated with mood disorders, particularly bipolar disorder. Trichotillomania has shared similarities with bipolar disorder by virtue of phenomenology, co-morbidity, and psychopharmacologic observations. In the past, trichotillomania with comorbid bipolar disorder was treated with lithium and sodium valproate. There has been little, if any, literature on using asenapine to augment treatment in patients with trichotillomania with comorbid bipolar disorder. A patient presented with hair-pulling episodes for a year, resulting in bald scalp patches. She had no mood symptoms prior to this. She developed low mood, anhedonia, poor sleep and poor appetite subsequently as she could not stop pulling her hair. She was started on escitalopram 10 mg daily for he depressive symptoms. Three years later, she developed hypomanic symptoms such as irritability and spending sprees. Her hair pulling behaviour worsened at this time. At this point, a diagnosis of bipolar disorder type 2 was considered and she was started on lithium 300 mg daily. Her escitalopram was discontinued. As her mood was still labile 10 months later, asenapine was added to augment lithium in the treatment of the bipolar disorder. With asenapine, her hair pulling frequency started to decrease rapidly. Asenapine was increased to 10 mg daily and her hair pulling ceased. Her mood also stabilized and she no longer had erratic periods of mood lability. In conclusion, asenapine augmentation of lithium has potential to be used in patients who have trichotillomania with comorbid bipolar disorder due to its unique receptor profile.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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48

Fukunari, Masafumi, Gregory S. Nusinovich, Yoshinori Tatematsu, Teruo Saito y Yuusuke Yamaguchi. "Saturation Effects in Frequency Pulling of Gyrotrons Operating in High-Order Axial Modes". IEEE Transactions on Plasma Science 46, n.º 8 (agosto de 2018): 2848–55. http://dx.doi.org/10.1109/tps.2018.2849379.

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49

Staszewski, R. B., D. Leipold y P. T. Balsara. "Direct frequency modulation of an ADPLL for bluetooth/GSM with injection pulling elimination". IEEE Transactions on Circuits and Systems II: Express Briefs 52, n.º 6 (junio de 2005): 339–43. http://dx.doi.org/10.1109/tcsii.2005.848957.

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50

Mirzaei, A. y A. A. Abidi. "The Spectrum of a Noisy Free-Running Oscillator Explained by Random Frequency Pulling". IEEE Transactions on Circuits and Systems I: Regular Papers 57, n.º 3 (marzo de 2010): 642–53. http://dx.doi.org/10.1109/tcsi.2009.2024970.

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