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Thematische Bibliographien / Bump Steer / Zeitschriftenartikel

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Zeitschriftenartikel zum Thema „Bump Steer“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 29. Juli 2025

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1

Hoyle, J. "Bump steer effects in a 10 ton truck with a leaf-spring suspension." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 221, no. 9 (2007): 1051–69. http://dx.doi.org/10.1243/09544070jauto180.

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A 10 t truck with a leaf-spring suspension and beam axles was known to have suffered an incident during normal road operation that was believed to have been related to the phenomenon of bump steer. Experimental investigations using a four-post rig established that the vehicle was particularly excited while traversing, at approximately 25 m/s, a sinusoidal undulating road profile that had a wavelength of approximately 12 m. Bump steer was evident under these conditions, and the excited frequency of approximately 2.4 Hz raised the possibility that driver reaction times (a lag of approximately 0.

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Norman, K. D. "Multiple-bump roadholding test: Description and metric interpretation." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 216, no. 4 (2002): 251–58. http://dx.doi.org/10.1243/0954407021529084.

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Road vehicle roadholding comprehends directional response to road inputs. This response is primarily a function of the roadway's frequency content and amplitude and the vehicle's inertial, suspension and tyre characteristics. There is also evidence that suspension kinematic and compliance steer properties can have a significant contribution (Rill, G. Steady state cornering on uneven roadways. SAE paper 860575, 1986). The multiple-bump roadholding test measures vehicle response to a periodic bump of varying frequency while cornering. By driving a vehicle at different speeds over a set of period

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3

Simionescu, P. A., D. Beale, and I. Talpasanu. "Dynamic effect of the bump steer in a wheeled tractor." Mechanism and Machine Theory 42, no. 10 (2007): 1352–61. http://dx.doi.org/10.1016/j.mechmachtheory.2006.10.007.

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4

Mahadevan Pichandi and Satish Kumar R. "Mathematical Model and Simulation for Improving Brake, Bump and Roll Steers in Light Commercial Vehicle (LCV)." ARAI Journal of Mobility Technology 3, no. 1 (2023): 484–502. http://dx.doi.org/10.37285/ajmt.3.1.7.

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Due to recent infrastructural developments and emerging competitive automotive market in India, there is seen a huge shift in customer demand and vehicle drivability pattern for small commercial vehicles. Various factors contributing to driver’s fatigue include driver negligence, inappropriate driving habits and vehicle inherent design error due to which a driver is forced to make frequent steering wheel corrections so as to make the vehicle run in a straight line. Thus, optimization of steering, suspension and front axle geometry becomes important for improving the overall vehicle drivability

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Gula, Jonathan, M. Jeroen Molemaker, and James C. McWilliams. "Gulf Stream Dynamics along the Southeastern U.S. Seaboard." Journal of Physical Oceanography 45, no. 3 (2015): 690–715. http://dx.doi.org/10.1175/jpo-d-14-0154.1.

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AbstractThe Gulf Stream strongly interacts with the topography along the southeastern U.S. seaboard, between the Straits of Florida and Cape Hatteras. The dynamics of the Gulf Stream in this region is investigated with a set of realistic, very high-resolution simulations using the Regional Ocean Modeling System (ROMS). The mean path is strongly influenced by the topography and in particular the Charleston Bump. There are significant local pressure anomalies and topographic form stresses exerted by the bump that retard the mean flow and steer the mean current pathway seaward. The topography pro

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Borisenko, Vladislav, Artem Kiselev, Luis Leoro, Aleksei Borovkov, and Yury Boldyrev. "K&C suspension parameters stability by production tolerances." E3S Web of Conferences 140 (2019): 07007. http://dx.doi.org/10.1051/e3sconf/201914007007.

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This paper considers a modern approach of K&C parameters stability analysis using the suspension MBS model of a short-wheelbase electric vehicle. According to the results of the work, even minor errors in suspension hardpoints positioning when overlaying can greatly affect the K&C parameters of car suspensions. Using MBS models, quasi-static K&C events have been simulated. In the same way the dependences of the suspension K&C parameters are numerically determined. Moreover, these calculations were made with different hardpoints positions for joints of wishbones fastening on a f

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Mahadevan Pichandi, Mohan B, Jagadeesh S, and Balaji S. "Conventional Four-bar Linkage Steering System Adoption for Underslung Front Suspension." ARAI Journal of Mobility Technology 2, no. 3 (2022): p249–255. http://dx.doi.org/10.37285/ajmt.2.3.1.

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Recirculating ball (RCB) steering gear with four-bar linkage steering system is widely used in commercial vehicles with rigid front axle and over slung suspension owing to their architectural arrangement. The usage of RCB steering gear with four-bar linkage steering system with underslung suspension is not commercialized globally due to complexity of packaging suspension and steering linkages. Few automotive OEMs have studied and implemented Y link steering system in place of four-bar linkage steering system for underslung suspension arrangement. Y link steering system has got its inherent dis

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Gordon, Karl D., E. L. Fitzpatrick, Derck Massa, et al. "Expanded Sample of Small Magellanic Cloud Ultraviolet Dust Extinction Curves: Correlations between the 2175 Å Bump, q _PAH, Ultraviolet Extinction Shape, and N(H i)/A(V)." Astrophysical Journal 970, no. 1 (2024): 51. http://dx.doi.org/10.3847/1538-4357/ad4be1.

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Abstract The Small Magellanic Cloud (SMC) shows a large variation in ultraviolet (UV) dust extinction curves, ranging from Milky Way (MW) like to significantly steeper curves with no detectable 2175 Å bump. This result is based on a sample of only nine sight lines. From Hubble Space Telescope Space Telescope Imaging Spectrograph and IUE spectra of OB stars, we have measured UV extinction curves along 32 SMC sight lines where eight of these curves were published previously. We find 16 sight lines with steep extinction with no detectable 2175 Å bump, four sight lines with MW-like extinction with

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9

Aicken, Michael D. "Bum steer." BMJ 334, no. 7588 (2007): 302. http://dx.doi.org/10.1136/bmj.39098.373912.be.

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10

Wang, Bing, Wenyuan An, Liang Wang, et al. "Superhydrophobic and Antibacterial Hierarchical Surface Fabricated by Femtosecond Laser." Sustainability 14, no. 19 (2022): 12412. http://dx.doi.org/10.3390/su141912412.

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Superhydrophobic surfaces are important in many applications owing to their special properties such as self-cleaning, anti-icing, antibacterial, and anti-fogging. In this paper, a micro/nano hierarchical superhydrophobic surface with a low roll-off angle was created on 304 stainless steel. The water contact angle was measured to be 152° with a roll-off angle of 7.3°. Firstly, microscale bumps were created by femtosecond laser irradiation. Secondly, zinc oxide (ZnO) nanowires were fabricated on the laser-induced bumps using a hydrothermal synthesis method. Results show that after laser treatmen

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Glemža, Justinas, Vilius Palenskis, Andrejus Geižutis та ін. "Low-Frequency Noise Investigation of 1.09 μm GaAsBi Laser Diodes". Materials 12, № 4 (2019): 673. http://dx.doi.org/10.3390/ma12040673.

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GaAsBi is a suitable and very attractive material system to be used as an active layer in laser diodes (LDs). To understand the performance and the reliability of such devices and also for further laser diode improvements, the origin of noise sources should be clarified. A detailed study of near-infrared 1.09 μm wavelength GaAsBi type-I laser diodes using the low-frequency noise spectroscopy in a temperature range of (180–300) K is presented. Different types of voltage fluctuation spectral density dependencies on the forward current far below the lasing threshold have been observed. According

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12

Duan, Wen Bo, Hai Peng Geng, Bai Song Yang, Yan Hua Sun, and Lie Yu. "Numerical and Experimental Investigation of Bump Foil Forming Process for Foil Air Bearings." Advanced Materials Research 204-210 (February 2011): 2103–8. http://dx.doi.org/10.4028/www.scientific.net/amr.204-210.2103.

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In this paper, a simplified nonlinear finite element for bump foil forming process of foil air bearings is developed. The bump foil is dealt with as flexible deformable body, the upper die and lower die are considered as the rigid body without deformation. The friction model between bump foil and dies with velocity-dependent friction forces is described by arctan function. The forming process of SS304 Stainless Steel bump foil under different loads is investigated with rigid-plastic finite element method. The simulation results are compared with theoretical values and experimental results. The

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Decleir, Marjorie, Ilse De Looze, Médéric Boquien, et al. "Revealing the dust attenuation properties on resolved scales in NGC 628 with SWIFT UVOT data." Monthly Notices of the Royal Astronomical Society 486, no. 1 (2019): 743–67. http://dx.doi.org/10.1093/mnras/stz805.

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ABSTRACT Understanding how dust attenuation laws vary between and within galaxies is a key question if we want to reliably measure the physical properties of galaxies at both global and local scales. To shed new light on this question, we present a detailed study of the slope and bump strength of the attenuation law in the nearby spiral galaxy NGC 628 at the resolved spatial scale of 325 pc. To do so, we have modelled a broad multiwavelength data set from the ultraviolet (UV) to the infrared (IR) with the state-of-the-art SED fitting code cigale, including SWIFT UVOT data for which we have dev

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Yang, Peiran, Jinlei Cui, Motohiro Kaneta, and Hiroshi Nishikawa. "Influence of a Surface Bump or Groove on the Lubricating Performance and Dimple Phenomena in Simple Sliding Point EHL Contacts." Journal of Tribology 126, no. 3 (2004): 466–72. http://dx.doi.org/10.1115/1.1691434.

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The influence of a transversely or longitudinally oriented surface bump or groove on the lubricating performance and dimple phenomena in the simple sliding point contact composed of a steel ball and a glass disk has been investigated theoretically with numerical solution of the thermal elastohydrodynamic lubrication (EHL) and experimentally with optical interferometry technique. Good agreement has been obtained between the theoretical and experimental results. It has also been discovered that the surface bump or groove is dangerously harmful to the lubricating performance and has a significant

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15

Yao, Yi, Quan Yuan, and Sihuan Fu. "Performance analysis of the bump beams made of High Strength Steel and Carbon Fiber reinforce plastics." MATEC Web of Conferences 207 (2018): 03006. http://dx.doi.org/10.1051/matecconf/201820703006.

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Lightweight and safe are the key research directions of the automobile industry. Bump beam is an important part of the car safety protection and it’s lightweight design has drawn much attention. In this paper, the static strength and the low-speed impact performances of two types of bump beam with the same structure, which made of carbon fiber reinforced plastics (CFRP) and high strength steel (HSS), were investigated. Under the condition of static press, frontal and 40% offset impact, part structural stiffness, component crush intrusion, energy absorption were comparison analyzed. In order to

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16

Wang, Li, Jun Wang, and Jixiu Wang. "Multi-bump solutions of Schrödinger–Bopp–Podolsky system with steep potential well." Electronic Journal of Qualitative Theory of Differential Equations, no. 10 (2024): 1–22. http://dx.doi.org/10.14232/ejqtde.2024.1.10.

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In this paper, we study the existence of multi-bump solutions for the following Schrödinger–Bopp–Podolsky system with steep potential well: { − Δ u + ( λ V ( x ) + V 0 ( x ) ) u + K ( x ) ϕ u = | u | p − 2 u , x ∈ R 3 , − Δ ϕ + a 2 Δ 2 ϕ = K ( x ) u 2 , x ∈ R 3 , where p ∈ ( 4 , 6 ) , a > 0 and λ is a parameter. We require that V ( x ) ≥ 0 and has a bounded potential well Ω = V − 1 ( 0 ) . Combining this with other suitable assumptions on Ω , V 0 and K , when λ is large enough, we obtain the existence of multi-bump-type solutions u λ by using variational methods.

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17

Zhang, Xu, and Shiwang Ma. "Multi-bump solutions of Schrödinger–Poisson equations with steep potential well." Zeitschrift für angewandte Mathematik und Physik 66, no. 4 (2015): 1615–31. http://dx.doi.org/10.1007/s00033-014-0490-x.

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18

Stieve, H., H. Gaube, and J. Klomfaß. "Effect of External Calcium Concentration on the Intensity Dependence of Light-Induced Membrane Current and Voltage Signals in Two Defined States of Adaptation in the Photo-Receptor of Limulus." Zeitschrift für Naturforschung C 41, no. 11-12 (1986): 1092–110. http://dx.doi.org/10.1515/znc-1986-11-1225.

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Abstract The intensity dependence of the response of the Limulus ventral nerve photoreceptor to light flashes was determined in alternating measurements for the membrane current signal (receptor current) under voltage clamp conditions and the membrane voltage signal (receptor potential). Responses were obtained at two reproducible states of adaptation, while the photoreceptor was superfused by physiological saline (10 mmol/l Ca2+), or by salines with either lowered (250 μmol/l) or raised (40 mmol/l) calcium concentration. For the dark-adapted state of the photoreceptor the double logarithmic p

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19

Shirai, Shin-ichi. "Multi-bump solutions to a nonlinear Schrödinger equation with steep magnetic wells." Journal of Mathematical Physics 56, no. 9 (2015): 091510. http://dx.doi.org/10.1063/1.4930247.

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20

Walton, Chris. "The Achilles Hole or just a bum steer?" Psychology of Women Section Review 4, no. 2 (2002): 22–23. http://dx.doi.org/10.53841/bpspow.2022.4.2.22.

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21

Vorkov, Vitalii, Richard Aerens, Dirk Vandepitte, and Joost R. Duflou. "Influence of a Single Bend in the Bumping Process of Large Radius Air Bending." Key Engineering Materials 651-653 (July 2015): 1090–95. http://dx.doi.org/10.4028/www.scientific.net/kem.651-653.1090.

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Bump bending or step bending is a forming technique that allows making large radius bends in a sheet metal part by means of a series of bends performed close to each other. The bump bending process has been studied by means of both an experimental campaign and finite element analysis. High-strength steel Weldox 1300 and a punch of radius 30 mm have been used. The finite element calculations have been performed with Abaqus using the solid formulation and Implicit/Explicit solvers. The results of the finite element analysis have been validated experimentally by monitoring the bending process usi

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22

Sato, Yohei, and Kazunaga Tanaka. "Sign-changing multi-bump solutions for nonlinear Schrödinger equations with steep potential wells." Transactions of the American Mathematical Society 361, no. 12 (2009): 6205–53. http://dx.doi.org/10.1090/s0002-9947-09-04565-6.

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23

Li, Xiao-Yan, Da-Bin Lin, Jia Ren, et al. "Late Afterglow Bump/Plateau around the Jet Break: Signature of a Free-to-shocked Wind Environment in Gamma-Ray Burst." Astrophysical Journal 922, no. 1 (2021): 22. http://dx.doi.org/10.3847/1538-4357/ac1ff2.

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Abstract A number of gamma-ray bursts (GRBs) exhibit the simultaneous bumps in their optical and X-ray afterglows around the jet break. These bumps are similar to the afterglows of GRB 170817A, except preceded by a long shallow decay. Its origin is unclear. We suggest that these late simultaneous bumps may sound a transition of circumburst environment from a free-wind medium to a constant density medium, e.g., the shocked-wind medium. In this paper, we study the emission of an external-forward shock propagating in a free-to-shocked wind environment at different viewing angles. The late simulta

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Chen, Chang Jun, Yan Zhan Su, Qin Cao, and Min Zhang. "Study on Cavitation Erosion Properties of Stainless Steel Vane Wheel Enhanced by Electro-Spark Deposition (ESD) Technology." Advanced Materials Research 239-242 (May 2011): 2229–32. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.2229.

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In this paper, Electro-Spark Deposition (ESD) technology was used to enhance the cavitation erosion resistance of the stainless steel. The microstructure and composition of the deposition layers were studied by optical microscope (OM), scanning electron microscope (SEM) and energy dispersive Spectrometry (EDS) on cavitation erosion resistance was investigated. The microhardness was measured too. The cavitation erosion resistance was measured in ultrasonic equipment. The preliminary study confirmed that the cavitation erosion resistance of the deposition layer was enhanced compared to the untre

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Christevi Octavia, Jaclyn, Heru Sufianto, and Bambang Yatnawijaya S. "KONSEP FLOATING PLATFORM PADA RUMAH TINGGAL DI PANTAI MUTIARA, JAKARTA UTARA." Jurnal Koridor 8, no. 1 (2017): 21–28. http://dx.doi.org/10.32734/koridor.v8i1.1317.

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Flood in flood prone area may degrades the quality of building materials, especially those made from timber and steel. Number of strategies for preventing flood have been implemented, including canal system, water dam, and infiltration affected region. This study seeks available modification of structural system implemented for individual residential building. The flood proof housing system was found to be effective installed in pantai mutiara housing area, North Jakarta. Some of supported materials has been choosen by consideration of materials weight, such as light steel as the main column,

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Hearn, George, and Knut Nordheim. "Differential Settlements and Inelastic Response in Steel Bridge Beams." Transportation Research Record: Journal of the Transportation Research Board 1633, no. 1 (1998): 68–73. http://dx.doi.org/10.3141/1633-09.

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A proposed method for mitigation of pavement faults at bridge abutments (the “bump at the end of the bridge”) is the use of shallow foundations. Abutments on shallow foundations are expected to settle compatibly with embankments and thus to minimize pavement faults. Allowing bridge abutments to settle may reduce faults, but it creates a demand for tolerance of different settlement in bridge superstructures. Current guidelines for tolerable differential settlement of bridges are empirical only, and the application of elastic analysis of bridge superstructures to determine tolerance of settlemen

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Saira, Ramzan, and Jawed Iqbal Muhammad. "Analysis of Non-Standardized Traffic Calming Devices under Local Conditions of Pakistan." International Journal of Engineering Works (ISSN: 2409-2770) 06, no. 01 (2019): 12–26. https://doi.org/10.5281/zenodo.2550739.

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The paper presents the issues regarding traffic calming devices in Pakistan. The problem is that no comprehensive analysis of the impacts of the traffic calming devices had been done previously. The paper proposed answer to three questions: 1) What are the current practices of traffic calming devices in Pakistan 2) What guidelines and standard exist for installation of these devices? 3) What are the suitable measures for the execution of traffic calming devices? To achieve these goals field survey and questionnaire survey was conducted in order to evaluate the current condition of traffic calm

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Hearnshaw, J. B., and V. J. McIntyre. "Optical spectroscopy of SN 1987A." Publications of the Astronomical Society of Australia 7, no. 4 (1988): 424–30. http://dx.doi.org/10.1017/s132335800002258x.

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AbstractMt John Observatory photographic spectra of SN 1987A have been obtained on 111 nights during the first year at resolutions of 1.1 Å (blue) and 1.6 Å (red). The early spectra are dominated by broad P Cygni profiles from neutral or singly ionised species. Ba absorption lines may be present. After six months nebular emission features emerged, including [OI] 630, 636 nm and two unidentified UV lines (367, 375 nm) in the previously dark region below 380 nm. Absorption line radial velocities show steep declines in the first month, but are almost constant or only slowly decline after 100 days

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Azizi, Hisyam Azhar, Agus Didit Haryanto, Johanes Hutabarat, Dicky Muslim, Dewi Gentana, and Ryan Hidayat. "POLA ALIRAN PANAS BERDASARKAN ANALISIS FLUIDA DAN MINERAL UBAHAN DI DAERAH PANAS BUMI SORIK MARAPI, KABUPATEN MANDAILING NATAL, PROVINSI SUMATRA UTARA." Buletin Sumber Daya Geologi 15, no. 3 (2020): 202–18. http://dx.doi.org/10.47599/bsdg.v15i3.309.

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Daerah panas bumi Sorik Marapi di Kabupaten Mandailing Natal, Provinsi Sumatra Utara merupakan sistem panas bumi bertemperatur tinggi yang diduga dari karakteristik kimia air panas yang muncul di permukaan. Kehadiran mineral ubahan seperti epidot pada serbuk bor sumur eksplorasi memperkuat pendugaan temperatur reservoir yang mencapai 235⁰C. Karakteristik air panas bersifat lebih asam di sekitar fumarol dan mineral ubahan yang didapatkan dari sumur bor mencerminkan zona upflow sedangkan kelompok mata air panas berupa air klorida ber pH netral di sebelah utara dengan elevasi yang lebih rendah me

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Ji, Chenlong, Zhongliang Zheng, Ziming Qin, and Hao Xue. "Investigation of Multi-Factor Stress Corrosion Cracking Failure of Safe-End Feedwater Lines of Submarine Power System." Materials 17, no. 6 (2024): 1381. http://dx.doi.org/10.3390/ma17061381.

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The corrosion process under the complex safe-end feedwater line conditions was investigated via experimental lab testing and numerical simulation. The corrosion of safe-end feedwater lines was controlled through the combination of galvanic corrosion, residual stress, and flow velocity. Firstly, galvanic corrosion occurred once the 20 steel was welded with 316L stainless steel. The pitting corrosion could be observed on the 20 steel side of the weld joint. Secondly, a vortex flow was detected around the welding bump and within the pits. The growth of the pits was accelerated in both the vertica

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Cantikawati, Khristia Ningsih, Nindyawati Nindyawati, and Roro Sulaksitaningrum. "Experimental Study on The Capacity Of Z-Brace and X-Brace Cold-Formed Steel Wall Panel." Jurnal Teknik Sipil dan Perencanaan 25, no. 2 (2023): 190–98. http://dx.doi.org/10.15294/jtsp.v25i2.46357.

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Awaludin et al. created an anti-earthquake temporary shelter called RISBARI (Rumah Instan Baja Ringan/Light Steel Instant House), featuring an X-shaped strap-braced wall system using cold-formed steel as its primary structure. A similar temporary shelter (hunian sementara/huntara) was developed by Biru Bumi Hijau using Z-shaped wall bracing. While experimental research on the lateral strength of cold-formed steel wall panels with X-brace bracing, such as in RISBARI, has been conducted extensively, there has been limited in-depth study on Biru Bumi Hijau's huntara. Hence, this research aimed to

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Wang, Cheng Lin, Chang Sheng Ai, and Guo Ping Li. "Optical Fiber Sensor System for Detecting the Steel Ball Surface Quality." Applied Mechanics and Materials 654 (October 2014): 245–49. http://dx.doi.org/10.4028/www.scientific.net/amm.654.245.

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The design of the optical fiber sensor system is used to detect the steel ball surface roughness and defects with displacement change such as cracks, pits, bumps and so on. Experiment results show that the sensor can distinguish between surfaces with different roughness. By establishment of the equivalent evaluation standard for surface quality, the system could detect whether the steel ball surface quality is qualified.

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Qiptiah, Mariatul, and Riswan Ludfi. "ANALISIS TINGKAT KESEHATAN PT. KRAKATAU STEEL (PERSERO) TBK TAHUN 2017-2020 DARI ASPEK KEUANGAN BERDASARKAN SURAT KEPUTUSAN MENTERI BUMN NOMOR: KEP- 100/MBU/2002." JURNAL ECONOMINA 1, no. 4 (2022): 958–74. http://dx.doi.org/10.55681/economina.v1i4.211.

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Penelitian ini bertujuan untuk mengetahui tingkat kesehatan PT. Krakatau Steel (Persero) Tbk Tahun 2017-2020 dari aspek keuangan berdasarkan surat keputusan Menteri BUMN Nomor- KEP-100/MBU/2002 dilakukan dengan cara menilai tingkat kesehatan perusahaan dengan melakukan serangkaian analisis untuk mengevaluasi kinerja keuangan pada beberapa periode, selain itu perusahaan juga penting menilai pencapaian laba melihat dari aspek keuangan lainnya, seperti tingkat profitabilitas, likuiditas, aktivitas, dan solvabilitas. Penelitian ini menggunakan pendekatan kuantitatif dengan menghitung 8 rasio keuan

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Wei, Dingchao, Jingwen Liao, Jianjun Liu, Yingjie Gao, and Fanglin Huang. "Design and Optimization of the Bi-Directional U-Ribbed Stiffening Plate–Concrete Composite Bridge Deck Structure." Applied Sciences 13, no. 16 (2023): 9340. http://dx.doi.org/10.3390/app13169340.

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The steel–concrete composite structure is widely used in civil engineering for large-span bridges. Orthotropic steel bridge decks (OSDs) have particularly gained popularity due to their excellent mechanical performance. To address cracking issues in OSDs and concrete in negative moment regions, a novel bi-directional U-ribbed stiffening plate (BUSP)–concrete composite bridge deck is proposed. By using finite element analysis, the mechanical performance is evaluated based on maximum tensile stress and vertical displacement of concrete overlays. Results show that the BUSP–concrete deck outperfor

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Schwanghart, Wolfgang, and Dirk Scherler. "Bumps in river profiles: uncertainty assessment and smoothing using quantile regression techniques." Earth Surface Dynamics 5, no. 4 (2017): 821–39. http://dx.doi.org/10.5194/esurf-5-821-2017.

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Abstract. The analysis of longitudinal river profiles is an important tool for studying landscape evolution. However, characterizing river profiles based on digital elevation models (DEMs) suffers from errors and artifacts that particularly prevail along valley bottoms. The aim of this study is to characterize uncertainties that arise from the analysis of river profiles derived from different, near-globally available DEMs. We devised new algorithms – quantile carving and the CRS algorithm – that rely on quantile regression to enable hydrological correction and the uncertainty quantification of

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He, Wen Bin, Pan Zeng, and Feng Lin. "Finite Element Analysis for 40 MN Die Forging Press." Advanced Materials Research 690-693 (May 2013): 2322–26. http://dx.doi.org/10.4028/www.scientific.net/amr.690-693.2322.

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40 MN multi-cored die forging press is a bi-directional loading press machine designed by Tsinghua University. The main frame is made by combination of multi-components through bumpy-ridge contact face and wound steel wire, which will supply a solidity support to bi-directional working load, i.e., the vertical and horizontal. Due to combination of multi-components (blocks), the main frame must be wound by the tensioned steel wire, which will endure a strong pre-stress. When die forging press works, the complex loading cases will appear,for instance, the vertical and horizontal loading, the com

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Abdullah, Shahrum, and Ahmad Kamal Ariffin. "Accelerated Fatigue Tests of BS 080A42 Steel Using the WBE Mission Loadings." Key Engineering Materials 326-328 (December 2006): 1023–26. http://dx.doi.org/10.4028/www.scientific.net/kem.326-328.1023.

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This paper describes the laboratory accelerated fatigue tests of BS 080A42 steel using the shortened variable amplitude (VA) loading produced by the Wavelet Bump Extraction (WBE) algorithm. In this study, a VA strain loading which was measured on the lower suspension arm of a vehicle while driven over a pavé road surface was used. The WBE shortened loading was validated based on the fatigue life comparison to the original loading using four strain-life fatigue damage models. Experimental fatigue tests were performed using a cylindrical shape specimen with the 6- mm gauge length smooth surface

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Mihaila, M., I. Blanari, and P. D. Barsanescu. "Static calibration of a modified weigh-in-motion sensor." IOP Conference Series: Materials Science and Engineering 1262, no. 1 (2022): 012051. http://dx.doi.org/10.1088/1757-899x/1262/1/012051.

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This paper presents the calibration in the laboratory of a weigh-in-motion sensor. The sensor has the shape and external dimensions of a bump speed and is mounted on the road as well. The sensor was designed using finite element analysis (FEA) and Computer Aid Design (CAD) programs. The sensor was made of sheet steel and its components were welded together. Strain gauges were mounted on the elastic element. A FEA simulation of the static calibration operation was performed. The sensor was then installed on an Instron 8801 testing machine and static compression calibration was performed. The re

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Ivanov, Vadim, Anna Dyagileva, and Seroni Anyona. "Accounting for the Steel Lining Influence on the Results of Solid Rock Resistivity Probe from Development Working Boundary." E3S Web of Conferences 134 (2019): 01008. http://dx.doi.org/10.1051/e3sconf/201913401008.

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When solving problems of predicting the hazards of solid rock bump and outburst in development and stope workings, the resistivity probe methods are often used, in particular, the four-probe method, in which electrodes are placed on the roof or the sill of the mine. The presence of steel lining in the mine significantly affects the measurement results until the complete collapse of electric field, so the electrodes are embedded into the rock. To obtain the true value of rock resistivity, it is necessary to make corrections due to the metal lining influence. This paper is devoted to the determi

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Widodo, Achmad, Kriscahya R. A., and Djoeli Satrijo. "Perancangan Poros Turbin 5 Mw untuk Pembangkit Listrik Tenaga Panas Bumi." ROTASI 19, no. 4 (2017): 185. http://dx.doi.org/10.14710/rotasi.19.4.185-192.

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Poros turbin merupakan komponen utama turbin uap pada pembangkit listrik tenaga panas bumi yang berperan untuk mentransmisikan daya atau torsi ke poros generator yang terhubung padanya. Poros turbin didesain untuk mampu menerima beban-beban poros saat poros beroperasi fluktuasi daya pada siklus tertentu. Material yang digunakan pada poros adalah stainless steel karena poros bekerja pada kondisi lingkungan korosif. Tujuan penelitian ini adalah untuk menghasilkan desain poros yang memenuhi persyaratan kelayakan desain berupa ASME Code: Design of Transmission Shaft, AS1170.1, ANSI B4.1-1978 dan a

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Tethool, Yoga Charol Vincenthius, Indra Birawaputra, Mayang K. F. Putri, Natalia E. Safkaur, Veronika Y. Ohoilulin, and Geraldo R. Rombe. "PENILAIAN KERENTANAN BANGUNAN DI KABUPATEN MANOKWARI SELATAN AKIBAT GEMPA BUMI." Construction and Material Journal 3, no. 3 (2021): 163–73. http://dx.doi.org/10.32722/cmj.v3i3.4232.

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Earthquake is a natural occurrence in which energy is released and propagated from the earth to the ground surface. The effects of the earthquakes include failure of building, landslides, tsunamis and so on. Mitigation actions are required to reduce the number of people killed or injured as a result of earthquakes. Assessing the vulnerability of buildings to earthquakes is one of the mitigation efforts. The Hazus Method is used to assess the vulnerability of a building. This method requires information such as: building typology and seismic activity at the location to be studied. The goal of t

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Wills, Beverley J. "The Infrared Spectra of Quasars - A Luminosity Dependence." Symposium - International Astronomical Union 124 (1987): 665–68. http://dx.doi.org/10.1017/s0074180900159728.

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The IR-optical-UV continua of quasars are often represented by two components: (i) a flat spectrum component dominating in the optical-UV (the “Big Bump”) and sometimes attributed to thermal radiation from an accretion disk with temperatures of about 20000 to 40000 K - we will call it the “disk” component - and (ii) a near IR component characterized by a steep rise, α ∼ 1 for λ > 1 μm, often thought to be a synchrotron spectrum - an extrapolation of the cm or mm wavelength radio spectrum - although some have preferred an explanation in terms of thermal re-radiation of the ionizing continuum

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Golubovic-Bugarski, V., B. Sredanović, S. Milovanović, R. Vukomanović, S. Petković, and M. Todić. "Investigation of dynamic behaviour of one complex steel structure." Journal of Physics: Conference Series 2540, no. 1 (2023): 012028. http://dx.doi.org/10.1088/1742-6596/2540/1/012028.

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Abstract This paper deals with dynamic analysis of a steel structure, constructed by steel beams and pillars which are connected by bolts. This structure is designed to serve as an acoustic barrier to one rotating machine which generates an air borne and structure borne sound and vibrations on a certain frequencies. This excitation energy is transmitted to the steel structure and might cause the oscillations of the structure. Depending on the frequency of the source of excitation, oscillations of the structure may occur at one of its natural frequencies, which depends on the physical character

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Chen, Sitong, Xianhua Tang, and Jiawu Peng. "Existence and concentration of positive solutions for Schrödinger-Poisson systems with steep well potential." Studia Scientiarum Mathematicarum Hungarica 55, no. 1 (2018): 53–93. http://dx.doi.org/10.1556/012.2018.55.1.1388.

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This paper is devoted to study the following Schrödinger-Poisson system where λ is a positive parameter, a ∈ C(R3,R+) has a bounded potential well Ω = a−1(0), b ∈ C(R3, R) is allowed to be sign-changing, K ∈ C(R3, R+) and f ∈ C(R, R). Without the monotonicity of f(t)=/|t|3 and the Ambrosetti-Rabinowitz type condition, we establish the existence and exponential decay of positive multi-bump solutions of the above system for , and obtain the concentration of a family of solutions as λ →+∞, where is determined by terms of a, b, K and f. Our results improve and generalize the ones obtained by C. O.

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Adha, Almandio, and Emmy Indrayani. "Fraud Triangle Analysis Detects Fraudulent Financial Statements Using A Fraud Score Model from BUMN Bank 2012-2022." Ilomata International Journal of Management 5, no. 2 (2024): 375–88. http://dx.doi.org/10.61194/ijjm.v5i2.1101.

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This study delves into anti-fraud measures within Indonesia's banking sector, specifically focusing on four state-owned banks (BUMN). Against a backdrop of financial challenges faced by entities like Krakatau Steel and Jiwasraya, the government and Financial Services Authority (OJK) introduced internal controls to rebuild public trust. However, concerns arise with the establishment of BUMN holding companies, consolidating top executives. Public trust significantly influences BUMN performance, leading to reinforced banking regulations by OJK. This research employs SPSS Version 25 to scrutinize

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Fadhila Wanda Hidayati, Dicky Jhoansyah, and R. Deni Muhammad Danial. "Analisis Model Altman, Model Zmijewski dan Model Ohlson Untuk Memprediksi Financial Distress." Jurnal Indonesia Sosial Sains 2, no. 2 (2021): 230–40. http://dx.doi.org/10.36418/jiss.v2i2.179.

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Penelitian ini bertujuan untuk memprediksi tingkat financial distress pada PT. Krakatau Steel (persero) Tbk yang merupakan perusahaan BUMN atau Badan Usaha Milik Negara yang bergerak dibidang . Perusahaan BUMN membantu untuk pertumbuhan ekonomi Indonesia. Oleh sebab itu, setiap perusahaan bersaing untuk mendapatkan profit yang besar. Jika perusahaan tidak bisa mendapatkan profit perlu diketahui lebih dalam apakah kondisi keuangan perusahaan baik-baik saja atau mengalami suatu masalah. Kesulitan keuangan bisa saja meimpa perusahaan manapun dan jika tidak segera ditangani akan mengakibatkan peru

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Meri Dita Rahayu, Indah Listyani, and Edi Murdiyanto. "Analisis Tingkat Kesehatan Perusahaan dari Aspek Keuangan Berdasarkan Keputusan Menteri BUMN Nomor: KEP-100/MBU/2002." Global Leadership Organizational Research in Management 1, no. 4 (2023): 215–27. http://dx.doi.org/10.59841/glory.v1i4.372.

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This research aims to determine the level of company health from a financial aspect based on the Decree of the Minister of BUMN Number: KEP-100/MBU/2002 at PT. Krakatau Steel (Persero) Tbk for the 2017-2021 period. The method used in this research is quantitative descriptive. This health level assessment uses 8 financial aspect indicators, namely ROE, ROI, Cash Ratio, Current Ratio, Collection Periods, Inventory Turnover, Total Asset Turn Over, and Total Own Capital to Total Assets. Based on the research results, PT. Krakatau Steel (Persero) Tbk for the 2017-2021 period experienced increases a

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Massa, D., and Blair D. Savage. "Measurements of Interstellar Extinction." Symposium - International Astronomical Union 135 (1989): 3–21. http://dx.doi.org/10.1017/s0074180900125069.

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The results of interstellar extinction measurements from the near IR to the far-UV are reviewed. The average interstellar extinction curve for the diffuse cloud medium exhibits a nearly linear rise (in 1/λ) from 1 μm−1 to the 2.25 μm−1 “knee” in extinction where the slope changes. In the UV there is a pronounced extinction bump near 4.6 μm−1 (2175 å) followed by a broad minimum and a steep rise in extinction to the shortest wavelengths for which measurements exist. For wavelengths shortward of about 5500 å, the interstellar extinction curve exhibits considerable variation in shape from one sig

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YAN, Yongnian. "Overview of Heavy Prestressed Bumpy Ridge Joining Structure with Steel Wire Wound." Journal of Mechanical Engineering 45, no. 11 (2009): 306. http://dx.doi.org/10.3901/jme.2009.11.306.

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Manoj, I. V., P. V. Srihari, Sadanand S. Kulkarni, K. Sarosh Kumar, and A. Bharatish. "Assessment of thermal effects on the levitation speed of bump foil bearings made of low cost spring steel." Measurement 92 (October 2016): 453–63. http://dx.doi.org/10.1016/j.measurement.2016.06.053.

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