Articles de revues : « Stabilization column »

1

Wilkie, Charles. « Column : Polymer Degradation and Stabilization ». Polymer News 29, n^o 3 (mars 2004) : 81–83. http://dx.doi.org/10.1080/00323910490980778.

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Chase, J. Geoffrey, et Mark Yim. « Optimal Stabilization of Column Buckling ». Journal of Engineering Mechanics 125, n^o 9 (septembre 1999) : 987–93. http://dx.doi.org/10.1061/(asce)0733-9399(1999)125:9(987).

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Chi, Thomas D., Brian C. Toolan, Bruce J. Sangeorzan et Sigvard T. Hansen. « The Lateral Column Lengthening and Medial Column Stabilization Procedures ». Clinical Orthopaedics and Related Research 365 (août 1999) : 81–90. http://dx.doi.org/10.1097/00003086-199908000-00011.

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Rousseau, Louis-Martin, Michel Gendreau et Dominique Feillet. « Interior point stabilization for column generation ». Operations Research Letters 35, n^o 5 (septembre 2007) : 660–68. http://dx.doi.org/10.1016/j.orl.2006.11.004.

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Dorn, Cornelius, Thomas E. Güttinger, Gary J. Wells, Manfred Morari, Achim Kienle, Eberhard Klein et Ernst-Dieter Gilles. « Stabilization of an Unstable Distillation Column ». Industrial & ; Engineering Chemistry Research 37, n^o 2 (février 1998) : 506–15. http://dx.doi.org/10.1021/ie9703447.

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KOSTUIK, JOHN P., THOMAS J. ERRICO, THOMAS F. GLEASON et CATHERINE CHILLEMI ERRICO. « Spinal Stabilization of Vertebral Column Tumors ». Spine 13, n^o 3 (mars 1988) : 250–56. http://dx.doi.org/10.1097/00007632-198803000-00006.

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Adam, Thomas, Klaus K. Unger, Monika M. Dittmann et Gerard P. Rozing. « Towards the column bed stabilization of columns in capillary electroendosmotic chromatography ». Journal of Chromatography A 887, n^o 1-2 (juillet 2000) : 327–37. http://dx.doi.org/10.1016/s0021-9673(99)01330-8.

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Szmidt, Tomasz, et Piotr Przybyłowicz. « An active electromagnetic stabilization of the Leipholz column ». Archives of Control Sciences 22, n^o 2 (1 janvier 2012) : 161–74. http://dx.doi.org/10.2478/v10170-011-0018-y.

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An active electromagnetic stabilization of the Leipholz column We study the application of electromagnetic actuators for the active stabilization of the Leipholz column. The cases of the compressive and tensional load of the column placed in air and in water are considered. The partial differential equation of the column is discretized by Galerkin's procedure, and the stability of the obtained control system is evaluated by the eigenvalues of its linearization. Four different methods of active stabilization are investigated. They incorporate control systems based on feedback proportional to the transverse displacement of the column, its velocity and the current in the electromagnets. Conditions in which these strategies are effective in securing safe operation of the column are discussed in detail.

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Ermolin, D. B., E. R. Magaril et R. Z. Magaril. « INCREASING THE EFFECTIVENESS OF STABILIZATION COLUMNS IN THE OIL AND GAS INDUSTRY ». Oil and Gas Studies, n^o 4 (30 août 2018) : 107–14. http://dx.doi.org/10.31660/0445-0108-2018-4-107-114.

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According to the results of the study, we found that increasing the pressure in a stabilization column improves the sharpness of separation of butanes from pentanes. As a result, the product quality is getting better. The pilot-industrial runs confirm the possibility of improving the effectiveness of the stabilization columns in various processes by increasing the pressure within the permissible limits.

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Chong, Siaw Yah, Khairul Anuar Kassim, Min Lee Lee et See Hung Lau. « Geotextile Encapsulation as Protection to Lime Column under Shear Load ». E3S Web of Conferences 65 (2018) : 06005. http://dx.doi.org/10.1051/e3sconf/20186506005.

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Deep lime stabilization such as lime column, can effectively improve the problematic soft clay through stabilization, settlement reduction and embankment stabilization. Nevertheless, the reduction of lime column load capacity was often encountered due to the column lateral displacement which was induced by high lateral earth pressure in embankments and deep excavation. In order to protect and enhance the mobilization of lime column strength, geotextile encapsulation was proposed for lime column. In this study, large shear box tests were conducted on lime column and geotextile encapsulated lime column (GELC) stabilized Pontian marine clay samples with different column sizes and curing ages, in order to investigate the performance of geotextile encapsulation on lime column in Pontian marine clay under shear loading. It was found that geotextile encapsulation effectively increased the horizontal shear resistance of lime column and protected the column from defect due to lateral displacement, especially at early age when modification was still in process. Geotextile encapsulation also successfully protected lime column from shear and bending failure under lateral load.

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Bergman, John W., et Prashant D. Sardeshmukh. « Dynamic Stabilization of Atmospheric Single Column Models ». Journal of Climate 17, n^o 5 (mars 2004) : 1004–21. http://dx.doi.org/10.1175/1520-0442(2004)017<1004:dsoasc>2.0.co;2.

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Kurnik, Włodzimierz, et Piotr M. Przybyłowicz. « THERMOACTIVE STABILIZATION OF A COMPOSITE LEIPHOLZ COLUMN ». Journal of Thermal Stresses 26, n^o 11-12 (novembre 2003) : 1263–76. http://dx.doi.org/10.1080/714050885.

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Alfaro, Marolo C., James A. Blatz, Wisam F. Abdulrazaq et Chang-Seok Kim. « Evaluating shear mobilization in rockfill columns used for riverbank stabilization ». Canadian Geotechnical Journal 46, n^o 8 (août 2009) : 976–86. http://dx.doi.org/10.1139/t09-036.

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The major rivers within the City of Winnipeg are founded in glacial Lake Agassiz clay and silt sediments that have low shear strength. As such, riverbank instabilities are a common issue along many stretches of the rivers. The use of rockfill columns has become an increasingly utilized approach for stabilizing failing banks. Recent cases in Winnipeg have shown that movements can occur following installation of rockfill columns. Uncertainty regarding the magnitude of these movements that is required to mobilize shearing resistance in the rockfill columns has resulted in situations where the stability of riverbanks following remediation has been questioned. This has provided a need to improve our understanding about how much movement a stabilized slope must undergo before sufficient shear resistance of the rockfill column will be mobilized. The results of experimental testing conducted to assess the shear mobilization of rockfill column materials using a large-scale direct shear test apparatus are presented in this paper. The testing methodology is described along with the test results. The results show that the development of material specifications, construction, and placement methods and appropriate methods of analysis requires understanding of the stress–strain properties of the in situ soil and the rockfill material.

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Liu, Songyu, et Roman D. Hryciw. « Evaluation and Quality Control of Dry-Jet-Mixed Clay Soil-Cement Columns by Standard Penetration Test ». Transportation Research Record : Journal of the Transportation Research Board 1849, n^o 1 (janvier 2003) : 47–52. http://dx.doi.org/10.3141/1849-06.

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Dry jet mixing has been widely used since the 1980s for stabilization of soft soil. The quality and strength of the dry-jet-mixed columns must be evaluated to confirm the success of the stabilization. The standard penetration test (SPT) is shown to be a simple and effective method for this task. The strength characteristics along the length of the column were determined, and correlations between the SPT blow count and the unconfined compressive strength were developed.

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Oskouian, Rod J., Christopher I. Shaffrey, Richard Whitehill, Charles A. Sansur, Nader Pouratian, Adam S. Kanter, Ashok R. Asthagiri et al. « Anterior stabilization of three-column thoracolumbar spinal trauma ». Journal of Neurosurgery : Spine 5, n^o 1 (juillet 2006) : 18–25. http://dx.doi.org/10.3171/spi.2006.5.1.18.

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Object The purpose of this study was to evaluate the results obtained in patients who underwent anterior stabilization for three-column thoracolumbar fractures. Methods The authors retrospectively reviewed available clinical and radiographic data (1997–2006) to classify three-column thoracolumbar fractures according to the Association for the Study of Internal Fixation (AO) system, neurological status, spinal canal compromise, pre- and postoperative segmental angulation, and arthrodesis rate. The mean computed tomography–measured preoperative spinal canal compromise was 48.3% (range 8–92%), and the mean vertebral body height loss was 39.4%. The mean preoperative kyphotic deformity of 14.9° improved to 4.6° at the final follow-up examination. Although this angulation had increased a mean of 1.8° during the follow-up period, the extent of correction was still significant compared with the preoperative angulation (p < 0.01). There were no cases of vascular complication or neurological deterioration. Conclusions Contemporary anterior spinal reconstruction techniques can allow certain types of unstable three-column thoracolumbar fractures to be treated via an anterior approach alone. Compared with traditional posterior approaches, the anterior route spares lumbar motion segments and obviates the need for harvesting of the iliac crest.

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Pashova, Vesselina, Carme Güell et Francisco López. « White Wine Continuous Protein Stabilization by Packed Column ». Journal of Agricultural and Food Chemistry 52, n^o 6 (mars 2004) : 1558–63. http://dx.doi.org/10.1021/jf034966g.

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Rubery, Paul T., Robert Brown, Mark Prasarn, John Small, Bryan Conrad, MaryBeth Horodyski et Glenn Rechtine. « Stabilization of 2-Column Thoracolumbar Fractures With Orthoses ». Spine 38, n^o 5 (mars 2013) : E270—E275. http://dx.doi.org/10.1097/brs.0b013e3182804c73.

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Sasso, Rick C., Natalie M. Best, Thomas M. Reilly et Robert A. McGuire. « Anterior-Only Stabilization of Three-Column Thoracolumbar Injuries ». Journal of Spinal Disorders & ; Techniques 18, Supplement 1 (février 2005) : S7—S14. http://dx.doi.org/10.1097/01.bsd.0000137157.82806.68.

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Brahim, Ahmed Ould, Souad Abderafi et Tijani Bounahmidi. « Modeling the stabilization column in the petroleum refinery ». Energy Procedia 139 (décembre 2017) : 61–66. http://dx.doi.org/10.1016/j.egypro.2017.11.173.

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Lee, Woo-Chun, Ji-Beom Kim, Young Yi et Jae-Young Kim. « Comparison of Radiographic Outcomes Between Dynamic Medial Column Stabilization and Lateral Column Lengthening ». Foot & ; Ankle Orthopaedics 1, n^o 1 (septembre 2016) : 2473011416S0006. http://dx.doi.org/10.1177/2473011416s00068.

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OʼBrien, Joseph R., Anton E. Dmitriev, Warren Yu, Daniel Gelb et Steven Ludwig. « Posterior-only Stabilization of 2-column and 3-column Injuries at the Cervicothoracic Junction ». Journal of Spinal Disorders & ; Techniques 22, n^o 5 (juillet 2009) : 340–46. http://dx.doi.org/10.1097/bsd.0b013e31816f68d9.

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Ben Amor, Hatem, et Jacques Desrosiers. « A proximal trust-region algorithm for column generation stabilization ». Computers & ; Operations Research 33, n^o 4 (avril 2006) : 910–27. http://dx.doi.org/10.1016/j.cor.2004.08.003.

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Singh, Deepak Kumar, Neha Singh, Rakesh Kumar, Deepak Mewara et Deepak Malviya. « Thoracolumbar fractures : Three column stabilization through posterior only approach ». Interdisciplinary Neurosurgery 4 (juin 2016) : 1–5. http://dx.doi.org/10.1016/j.inat.2016.01.004.

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Herbert, Roger B., Linda Höckert, Mattias von Brömssen, Helen Friis et Gunnar Jacks. « Mine Waste Stabilization with Biosludge and Ca Carbonate Residues : Column Experiments ». Advanced Materials Research 20-21 (juillet 2007) : 291–94. http://dx.doi.org/10.4028/www.scientific.net/amr.20-21.291.

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Column experiments investigated the stabilization of waste rock from Ljusnarsberg mine in Kopparberg, Sweden. In order to inhibit the generation of acidic leachate from the waste rock, biosludge and a Ca carbonate – rich residue from the paper industry were mixed with the sulfidic mine waste. The results of the column experiments indicate that the stabilization of the waste rock with the reactive amendments succeeded in maintaining a near – neutral pH in the waste rock leachate, compared to a pH 3 leachate from untreated waste rock. Copper and Zn concentrations in leachate from the untreated waste exceeded 100 mg/L, while these metals were detected at concentrations less than 0.1 and 1 mg/L, respectively, in the leachate from the treated wastes. This study indicates that the stabilization of acid – generating waste rock with biosludge and Ca carbonate residues is effective in preventing the generation of acid mine drainage; the treatment is expected to continue until the reactive amendments are exhausted.

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Yun, Sang Leen, So Jung Kim, Yong Jin Park, Sung Won Kang, Pill Jae Kwak, Jae Jung Ko et Jae Hwan Ahn. « Evaluation of Capping Materials for the Stabilization of Contaminated Sediments ». Materials Science Forum 544-545 (mai 2007) : 565–68. http://dx.doi.org/10.4028/www.scientific.net/msf.544-545.565.

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With the development of economic status and living standard, eutrophication of lakes has become serious problem. Due to continuous inflow of external nutrients into lakes, phosphorus, a critical nutrient for lake production, has been accumulated in large amount in the sediment. Thus phosphorus rich sediment acts as an internal nutrient source and reduction of phosphorus release from the sediment is very important for restoring eutrophied lakes. Among the various strategies to restore lakes, in-situ capping is known as an attractive and cost-effective method for remediation of contaminated sediments. In this paper, lab-scale batch column test was conducted to evaluate the characteristics of capping materials on reduction of phosphorus release from the sediment. Three different types of capping materials including sand, zeolite, and natural gypsum (CaSO4·2H2O) were used. Each column was filled 7 cm with sediment and covered by 1 cm of sand, zeolite, and natural gypsum, respectively. The change of water quality in supernatant solution was monitored for 10 days in each column. From the results, addition of gypsum showed higher treatment efficiency than sand and zeolite. In case of the capping with gypsum, it was found that the phosphorous release from the sediment could be reduced by around 90% as compared with untreated column. On the contrary, phosphorus reduction efficiencies of sand and zeolite were 60% and 14%, respectively. Moreover, in case of the capping with sand and zeolite, sudden increase of phosphorus concentration was observed with the generation of CH4 gas from sediment. Methanobacterial ebullition is one of the important factors for transporting phosphorus from sediment into water column. It was reported that the addition of gypsum could reduce the progress of methanogensis by supplying sulfate into sediment, which enhances the activity of sulfate-reducing bacteria (SRB) and mineralization rate of organic matter.

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Kubat, Jan. « CFRP Strengthening of Damaged Stone Masonry Column ». Applied Mechanics and Materials 827 (février 2016) : 235–38. http://dx.doi.org/10.4028/www.scientific.net/amm.827.235.

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The paper deals with the effectiveness of CFRP confinement externally bonded on the surface of damaged stone masonry columns. The experimental measurement carried out within the DF12P01OVV037 research project [1] includes the mechanical behavior, specimen´s strength and failure modes. The results showed that the CFRP confinement may be considered as an effective stabilization technique able to increase the structural safety of damaged stone columns.

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Juromskiy, V. M. « Stabilization of the Circulation Flow of the Cryogenic Distillation Column ». Physics Procedia 72 (2015) : 142–45. http://dx.doi.org/10.1016/j.phpro.2015.09.040.

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Greisberg, Justin, Mathieu Assal, Sigvard T. Hansen et Bruce J. Sangeorzan. « Isolated Medial Column Stabilization Improves Alignment in Adult-acquired Flatfoot ». Clinical Orthopaedics and Related Research &NA;, n^o 435 (juin 2005) : 197–202. http://dx.doi.org/10.1097/01.blo.0000157658.17056.46.

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Connelly, Camille L., et Michael T. Archdeacon. « Transgluteal Posterior Column Screw Stabilization for Fractures of the Acetabulum ». Journal of Orthopaedic Trauma 26, n^o 10 (octobre 2012) : e193-e197. http://dx.doi.org/10.1097/bot.0b013e318239217f.

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Brahim, Ahmed Ould, et Souad Abderafi. « Pressure Effect on the Stabilization Column in the Petroleum Refinery ». Energy Procedia 118 (août 2017) : 233–37. http://dx.doi.org/10.1016/j.egypro.2017.07.013.

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Apriyono, Arwan, et Sumiyanto Sumiyanto. « Pengaruh Variasi JarakKolom Kapur dalam Stabilisasi Tanah Lempung Lunak pada Tinjauan Nilai Indek Pemampatan Tanah(Cc) ». Dinamika Rekayasa 7, n^o 2 (2 août 2011) : 31. http://dx.doi.org/10.20884/1.dr.2011.7.2.46.

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<p>Numerousbuildingslocated in north area of Java Island encountersettlement problem. The settlementoccurs because most ofsoil in the areais soft clay soil. The behavior of this soilis characterized by the large value of coefficient compression (Cc) and small valueof bearing capacity. This condition causes potentially great consolidation settlement. In this research, limes column stabilization method will be applied to make soft clay soil better. Limes columns were expected to reduce Cc value therefore consolidation settlement decreases. This research was conducted throughlaboratory experiment, usingbox100 cm in lengths, 40 cm in wide, and 40 cmin height. Three variations of diameters (5 cm, 10 cm, 15 cm) and three variations of distance of sample taken from outside of the limes column mould (10 cm,20 cm, 30 cm) was applied in this research. Influence of limes column to the value of Ccwasexamined. The result of this research showsthat limescolumn couldsignificantlyreduceCcvalue. TheCc valuedecreases when thedistance of sample taking placedecreases. The average of Ccdeclineon three variationsdistance of column (10 cm, 20 cm, 30 cm)are 17.28%, 44.97%, 52.24%respectively. The most efficient distance of thelimes column is 20 cm.</p>

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Aboutalebi, Payam, Fares M’zoughi, Itziar Martija, Izaskun Garrido et Aitor J. Garrido. « Switching Control Strategy for Oscillating Water Columns Based on Response Amplitude Operators for Floating Offshore Wind Turbines Stabilization ». Applied Sciences 11, n^o 11 (5 juin 2021) : 5249. http://dx.doi.org/10.3390/app11115249.

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In this article, a new strategy for switching control has been proposed with the aim of reducing oscillations in floating offshore wind turbines. Such oscillations lead to a shortage in the system’s efficiency, lifespan and harvesting capability of wind and wave energies. In order to study the decreasing of undesired oscillations in the system, particularly in pitch and top tower fore-aft movements, a square-shaped platform barge equipped with four symmetric oscillating water columns has been considered. The oscillating water columns’ air flux valves allow to operate the air columns so that to control the barge movements caused by oscillatory motion of the waves. In order to design the control scheme, response amplitude operators have been used to evaluate the performance of the system for a range of wave frequency profiles. These response amplitude operators analysis makes it possible to implement a switching control strategy to adequately regulate the valves opening/closing transition. The obtained results show that the proposed controlled oscillating water column-based barge present a better performance compared to the traditional barge one. In the case study with the period of 10 s, the results indicate the significant oscillation reduction for the controlled oscillating water column-based system compared to the standard barge system by 30.8% in pitch angle and 25% in fore-aft displacement.

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Chong, Siaw Yah, Khairul Anuar Kassim et Kenny Tiong Ping Chiet. « Effect of Geotextile Encapsulation on Lime Column Axial Stress in Pontain Marine Clay ». Applied Mechanics and Materials 773-774 (juillet 2015) : 1402–6. http://dx.doi.org/10.4028/www.scientific.net/amm.773-774.1402.

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Previous researchers reported that problematic soft clay can be improved by deep lime stabilization. However, due to low confining pressure of surrounding soil, problems often occurred at top part of column which reduced the performance of lime column, such as: crushing at column head and higher settlement for surrounding soil at the upper part of column. Geotextile encapsulated lime column (GELC) was proposed in this study. The stresses on column are essential in the analysis on columnar improved soil. Multi-stage loading test was conducted on lime column and GELC stabilized Pontian marine clay aged 14 days, 28 days and 56 days in order to investigate axial stress on lime column and GELC stabilized Pontian marine clay. Geotextile encapsulation increased the compressive strength of lime column about 70 percent at axial strain of 8 percent.

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CYBULSKI, GEORGE R., RICHARD A. DOUGLAS, PAUL R. MEYER et RICHARD A. ROVIN. « Complications in Three-Column Cervical Spine Injuries Requiring Anterior–Posterior Stabilization ». Spine 17, n^o 3 (mars 1992) : 253–56. http://dx.doi.org/10.1097/00007632-199203000-00001.

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Pennington, Zach, Andrew T. Schilling, Ethan Cottrill, Andrew Hersh, Bethany Hung et Daniel M. Sciubba. « Minimally invasive circumferential decompression and stabilization for metastatic vertebral column disease ». Seminars in Spine Surgery 33, n^o 1 (mars 2021) : 100852. http://dx.doi.org/10.1016/j.semss.2021.100852.

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Hebib, Samir, et Eric R. Farrell. « Some experiences on the stabilization of Irish peats ». Canadian Geotechnical Journal 40, n^o 1 (1 février 2003) : 107–20. http://dx.doi.org/10.1139/t02-091.

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This paper presents the findings of a study into the engineering properties of two peats from the Irish Midlands that were mixed with various binders to form a stabilized soil. The study comprised an investigation of the increase in unconfined compressive strength over time achieved using different binders for both peats and a comprehensive series of triaxial and compression tests on one peat when mixed with cement. A stabilized structure (i.e., a stabilized surface layer and a stabilized column) was tested in a large testing chamber in Trinity College to compare the laboratory parameters with those interpreted from the results of the large-scale test. The study showed that the engineering properties of the peat were considerably improved when mixed with some binders, however the degrees of improvement were markedly different for the two peats that had similar organic content. The formation of the stabilized soil structure within the testing chamber significantly reduced the amount of settlement when compared with that interpreted for the untreated soil, and the rate of consolidation was accelerated. A finite element analysis of the recorded behaviour in the large testing chamber showed good agreement between the simulated and the experimental behaviour.Key words: peat, cement, stabilization, compressibility, column.

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Kazemian, Sina, Arun Prasad, Vahed Ghiasi et Bujang Bin Kim Huat. « Effect of Cement on Compressibility and Microstructure of Tropical Peat ». Advanced Materials Research 261-263 (mai 2011) : 33–37. http://dx.doi.org/10.4028/www.scientific.net/amr.261-263.33.

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Peats are geotechnically problematic soil due to their high compressibility and low shear strength. Cement is widely used for the stabilization of peat by deep mixing method (DMM). This paper presents the results of the model study of compressibility property of peats stabilized with cement columns formed by DMM. The results of consolidation test, scanning electron micrographs (SEM) and energy dispersive x-ray spectrometer (EDX) showed that the compressibility of peats can be improved significantly by the installation of cement stabilized columns. The amount of cement used to form the column was observed to influence the engineering behaviour of treated tropical peats and it had more influence on sapric peat than on hemic and fibrous peats.

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Islam, Md Aminul, Md Abdul Hye Manik, Rukun Uddin Chowdhury, Md Al Amin Salek, Amir Ali, Hasnayen Faisal et AKM Bazlul Karim. « Internal Fixation, A Reconstructive Spine Surgery : A Remedy of Long-Term Spinal Problems ». Bangladesh Journal of Neurosurgery 9, n^o 1 (30 août 2019) : 11–15. http://dx.doi.org/10.3329/bjns.v9i1.42918.

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Background: Spinal instrumentation provides a stable, rigid column that encourages bones to fuse after spinal fusion surgery. Methods: The study was carried out in the Neurosurgery Center, CMH, Dhaka, from 01 January 2013 to July 31 2018. A total of 95 patients were included with unrestricted age and gender, underwent spinal surgery with fixation. Result: Better outcome was observed in spinal surgery with stabilization. Conclusion: Whereas early (within hours) or immediate (within 48 h) stabilization and indirect or direct decompression has excellent outcome, even delayed stabilization of the unstable spine has benefits. Bang. J Neurosurgery 2019; 9(1): 11-15

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Peplow, Andrew T., et Amir M. Kaynia. « Prediction and validation of traffic vibration reduction due to cement column stabilization ». Soil Dynamics and Earthquake Engineering 27, n^o 8 (août 2007) : 793–802. http://dx.doi.org/10.1016/j.soildyn.2007.01.002.

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Pessoa, A., R. Sadykov, E. Uchoa et F. Vanderbeck. « Automation and Combination of Linear-Programming Based Stabilization Techniques in Column Generation ». INFORMS Journal on Computing 30, n^o 2 (mai 2018) : 339–60. http://dx.doi.org/10.1287/ijoc.2017.0784.

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Esrig, Melvin I., et Peter E. MacKenna. « Lime Cement Column Ground Stabilization for I-15 in Salt Lake City ». Practice Periodical on Structural Design and Construction 6, n^o 3 (août 2001) : 104–15. http://dx.doi.org/10.1061/(asce)1084-0680(2001)6:3(104).

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Huh, Jeannie, Alexander J. Lampley, Christopher E. Gross, Samuel B. Adams, James A. Nunley et Mark E. Easley. « Sparing the Naviculocuneiform Joint during Medial Column Stabilization for Rigid Flatfoot Deformity ». Foot & ; Ankle Orthopaedics 1, n^o 1 (septembre 2016) : 2473011416S0006. http://dx.doi.org/10.1177/2473011416s00067.

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Kato, Junichi. « Beam position stabilization by suppression of electrons reentering the electron-beam column ». Journal of Vacuum Science & ; Technology B : Microelectronics and Nanometer Structures 13, n^o 6 (novembre 1995) : 2450. http://dx.doi.org/10.1116/1.588019.

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Danielski, A., A. Vanhaesebrouck et R. Yeadon. « Ventral stabilization and facetectomy in a Great Dane with wobbler syndrome due to cervical spinal canal stenosis ». Veterinary and Comparative Orthopaedics and Traumatology 25, n^o 04 (2012) : 337–41. http://dx.doi.org/10.3415/vcot-11-09-0134.

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SummaryThis report describes the management of clinically significant, single level cervical spinal canal stenosis associated with articular facet hypertrophy in a three-year-old Great Dane dog, by combined surgical decompression and spinal stabilization. Spinal column stabilization was achieved by ventral application of two String of Pearls locking plates and subsequent decompression was accomplished by unilateral facetectomy. The six-month postoperative reassessment examination confirmed satisfactory clinical outcome with a complete return to normal activity, resolution of neurological deficits and maintenance of implant positioning.

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Hunter, Evan M., Heath J. Mills et Joel E. Kostka. « Microbial Community Diversity Associated with Carbon and Nitrogen Cycling in Permeable Shelf Sediments ». Applied and Environmental Microbiology 72, n^o 9 (septembre 2006) : 5689–701. http://dx.doi.org/10.1128/aem.03007-05.

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ABSTRACT Though a large fraction of primary production and organic matter cycling in the oceans occurs on continental shelves dominated by sandy deposits, the microbial communities associated with permeable shelf sediments remain poorly characterized. Therefore, in this study, we provide the first detailed characterization of microbial diversity in marine sands of the South Atlantic Bight through parallel analyses of small-subunit (SSU) rRNA gene (Bacteria), nosZ (denitrifying bacteria), and amoA (ammonia-oxidizing bacteria) sequences. Communities were analyzed by parallel DNA extractions and clone library construction from both sediment core material and manipulated sediment within column experiments designed for geochemical rate determinations. Rapid organic-matter degradation and coupled nitrification-denitrification were observed in column experiments at flow rates resembling in situ conditions over a range of oxygen concentrations. Numerous SSU rRNA phylotypes were affiliated with the phyla Proteobacteria (classes Alpha-, Delta-, and Gammaproteobacteria), Planctomycetes, Cyanobacteria, Chloroflexi, and Bacteroidetes. Detectable sequence diversity of nosZ and SSU rRNA genes increased in stratified redox-stabilized columns compared to in situ sediments, with the Alphaproteobacteria comprising the most frequently detected group. Alternatively, nitrifier communities showed a relatively low and stable diversity that did not covary with the other gene targets. Our results elucidate predominant phylotypes that are likely to catalyze carbon and nitrogen cycling in marine sands. Although overall diversity increased in response to redox stabilization and stratification in column experiments, the major phylotypes remained the same in all of our libraries, indicating that the columns sufficiently mimic in situ conditions.

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Yue, James J., Jens P. Timm, Manohar M. Panjabi et Jorge Jaramillo-De La Torre. « Clinical application of the Panjabi neutral zone hypothesis : the Stabilimax NZ posterior lumbar dynamic stabilization system ». Neurosurgical Focus 22, n^o 1 (janvier 2007) : 1–3. http://dx.doi.org/10.3171/foc.2007.22.1.12.

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✓The neutral zone (NZ) is a region of intervertebral motion around the neutral posture where little resistance is offered by the passive spinal column. The NZ appears to be a clinically important measure of spinal stability function. Its size may increase with injury to the spinal column, which in turn may result in spinal instability or low-back pain. Dynamic stabilization systems are designed to support and stabilize the spine while maintaining range of motion (ROM). The Stabilimax NZ device has been designed to reduce the NZ after spinal injury to treat pain while preserving ROM.

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Padmakumar, K. B., Lathika Cicily Thomas, K. G. Vimalkumar, C. R. Asha Devi, T. P. Maneesh, Anilkumar Vijayan, G. V. M. Gupta et M. Sudhakar. « Hydrobiological responses of the North Eastern Arabian Sea during late winter and early spring inter-monsoons and the repercussions on open ocean blooms ». Journal of the Marine Biological Association of the United Kingdom 97, n^o 7 (26 mai 2016) : 1467–78. http://dx.doi.org/10.1017/s0025315416000795.

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Winter cooling and persistent mixing for more than a quarter of year (November to early March) along the North Eastern Arabian Sea (NEAS) results in nutrient enrichment of the euphotic column thereby triggering biological production. Hydrographic characteristics of NEAS during Late Winter Monsoon (LWM) and Early Spring Inter Monsoon (ESIM) and the influence on biological production are overviewed here. Winter convective mixing signatures were evident during LWM with low SST (24°C), high SSS (36.4), deep mixed layers (>100 m) and increased surface nitrate (~1 µM). Open ocean waters observed high chlorophyll a (1–2 mg m−3) and microphytoplankton abundance (1.2–1.5 × 104 cells l−1). Diatoms and green Noctiluca scintillans were the major microphytoplankton identified. ESIM observed gradual stabilization of water column with curtailment of winter signatures and strengthening of Noctiluca scintillans blooms. Mesozooplankton biomass was higher during LWM and decreased towards ESIM with intensification of Noctiluca blooms. However during ESIM, abundance of gelatinous zooplankton occurred in the bloom region. Inter-annual variations were observed in the biological responses along with the hydrographic changes. Thus the convective process during winter monsoon and stabilization of the water column during ESIM plays a significant role in the production pattern of NEAS.

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Deshaies, Eric M., Darryl DiRisio et A. John Popp. « Medieval management of spinal injuries : parallels between Theodoric of Bologna and contemporary spine surgeons ». Neurosurgical Focus 16, n^o 1 (janvier 2004) : 1–3. http://dx.doi.org/10.3171/foc.2004.16.1.4.

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In recent decades there have been revolutionary technological advances in the management of traumatic spinal column injuries. Despite these advances, the basic principles of reduction and stabilization of vertebral fractures and dislocations remain similar to those proposed by ancient and medieval physicians. Theodoric of Bologna, in his text Chiurgica de Theodoric (ca. AD 1267), described an extracorporeal approach to the management of traumatic spinal column misalignments. Surprisingly, his techniques are still used in many instances by contemporary spine surgeons, despite the availability of a more advanced technological armamentarium than that existent in medieval times.

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Byrski, Witold, et Pawel Kubik. « LQ Control and EKF as the State Observer in Stabilization of Distillation Column ». IFAC Proceedings Volumes 28, n^o 10 (juillet 1995) : 297–302. http://dx.doi.org/10.1016/s1474-6670(17)51533-5.

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Karimi, Hadi, et Abbas Seifi. « Analytic centre stabilization of column generation algorithm for the capacitated vehicle routing problem ». Optimization Methods and Software 30, n^o 6 (27 avril 2015) : 1109–25. http://dx.doi.org/10.1080/10556788.2015.1025134.

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