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Artykuły w czasopismach na temat „Drainage rate”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 1 lutego 2022

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1

Suharyatun, Siti, Bambang Purwantana, Abdul Rozaq, and Muhjidin Mawardi. "THE CLAY CONTENT EFFECT ON THE FORMATION OF SHALLOW MOLE DRAINAGE AND THE RATE OF LOWERING SOIL MOISTURE CONTENT." Jurnal Agritech 34, no. 03 (October 24, 2014): 347. http://dx.doi.org/10.22146/agritech.9464.

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Installing shallow mole drainage in the soil is inﬂ uenced by various factors, namely; the physical properties of soil and tools which are used. One of the physical properties of soil that inﬂ uences the formation of the mole drainage is the clay content of soil. This study aimed to explore the condition of the mole drainage formed in paddy soil with different clay contents. The study was conducted in a laboratory scale using a soil bin, a model of mole plough, and soil which was kept homogeneous in the boxes. The experiment was conducted at the Laboratory for Energy andAgricultural Engineerin

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Matjakriandi, Matjakriandi, Alfiansyah Yulianur, and Muhammad Isya. "EVALUASI DRAINASE JALAN PONDOK BARU – PERMATA KABUPATEN BENER MERIAH KM. 4+200 SAMPAI DENGAN KM. 10+522." Jurnal Teknik Sipil 1, no. 4 (February 28, 2018): 929–40. http://dx.doi.org/10.24815/jts.v1i4.10054.

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Abstract: The road is a transportation infrastructure that is essential for humans. The road connects a community of people in a region with other regions, one important aspect for highway construction was securing the road from the water, either from rain or from a side-street drainage impact on the road surface damage. Bener Meriah district, a mountainous region with an altitude of 100 meters above sea level up to 2,500 meters, with a fairly high rainfall. Road conditions on the slopes and foothills affect the slope of the road longitudinal slope and drainage in the rainy season the road so

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Saadat, Samaneh, Laura Bowling, Jane Frankenberger, and Kyle Brooks. "Effects of Controlled Drainage on Water Table Recession Rate." Transactions of the ASABE 60, no. 3 (2017): 813–21. http://dx.doi.org/10.13031/trans.11922.

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Abstract. Controlled drainage is a best management practice that decreases nitrate loads from subsurface drainage, but questions remain about optimal operation strategies. One unanswered question is whether the outlet should be lowered prior to or directly after a rainfall event to reduce the amount of time that the water table is at a level that would be detrimental to either trafficability or crop yield. The objective of this study was to determine how much controlled drainage lengthens the time needed for the water table to fall after a rainfall event, to inform possible improvement in the

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Sahlin, Sven, Carl-Gustaf Laurell, Enping Chen, and Bo Philipson. "Lacrimal drainage capacity, age and blink rate." Orbit 17, no. 3 (January 1998): 155–59. http://dx.doi.org/10.1076/orbi.17.3.155.2757.

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SAHLIN, SVEN, and ENPING CHEN. "Gravity, Blink Rate, and Lacrimal Drainage Capacity." American Journal of Ophthalmology 124, no. 6 (December 1997): 758–64. http://dx.doi.org/10.1016/s0002-9394(14)71692-7.

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Kaupuža, Renāte, and Gotfrīds Noviks. "DETERMINATION OF HABITAT 6270*_3 PERMITTED DRAINAGE RATE." HUMAN. ENVIRONMENT. TECHNOLOGIES. Proceedings of the Students International Scientific and Practical Conference, no. 23 (April 24, 2019): 122. http://dx.doi.org/10.17770/het2019.23.4403.

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Amelioration has dramatically altered the distribution of semi-natural grasslands in Latvia and as a result of the drainage, and the ocurrance of humid grassland habitats has decreased sharply. The aim of the paper was to identify drainage rate for habitat 6270*_3 ecohydrological requirements which is necessary for its successful management and long-term existence. The work looked at 15 equally managed (extensively grazed and/or mowed) perennial, natural grasslands at different levels of drainage resulting in various quality states. To reveal the most habitat-preserving drainage rate, for each

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7

Levytska, V., and P. Khoruzhiy. "INFLUENCE OF DRAINAGE WELLS IN ANTIFILTRATION DRAINAGE SYSTEM." Visnyk of Taras Shevchenko National University of Kyiv. Geology, no. 3 (90) (2020): 91–96. http://dx.doi.org/10.17721/1728-2713.90.13.

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The decrease of water levels in the drainage wells of the coastal anti-filtration drainage system with the siphon method of water intake from them was analyzed. The interaction of water-lowering wells with different depths and located at variable distances from each other is considered, which makes it possible to ensure uniform drainage from each well and to achieve a steady decrease in the level of groundwater over the entire length of the antifiltration drainage system.The results of the performed analytical studies are presented. The example of the Kamyanka-Dniprovska's anti-filtration drai

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8

David Suits, L., TC Sheahan, TH Seah, and T. Juirnarongrit. "Constant Rate of Strain Consolidation with Radial Drainage." Geotechnical Testing Journal 26, no. 4 (2003): 10173. http://dx.doi.org/10.1520/gtj11251j.

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Criddle, Richard S., Thimmappa S. Anekonda, Sharon Tong, John N. Church, F. Thomas Ledig, and Lee D. Hansen. "Effects of climate on growth traits of river red gum are determined by respiration parameters." Functional Plant Biology 27, no. 5 (2000): 435. http://dx.doi.org/10.1071/pp98057.

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Temperature is the major uncontrollable climate variable in plantation forestry. Matching plants to climate is essential for optimizing growth. Matching is usually done with field trials because of the lack of a predictive relation between laboratory measurements of physiological responses and climatic factors affecting growth. This paper evaluates the potential of using respiration parameters for selection of appropriate drainage or seed sources within a drainage for superior growth in a particular climate. The growth traits measured are tree height, stem diameter and stem volume. The respira

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10

Jiao, Pingjin, Yingduo Yu, and Di Xu. "Effect of Drainage Water Reuse on Supplementary Irrigation and Drainage Reduction." Transactions of the ASABE 61, no. 5 (2018): 1619–26. http://dx.doi.org/10.13031/trans.12697.

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Drainage water reuse has the potential to supplement irrigation, reduce drainage, and alleviate the area source pollution caused by agricultural drainage. This study aimed to evaluate the effects of influencing factors of drainage water reuse on supplementary irrigation and drainage reduction rates. To evaluate the effects, a water balance model was constructed to describe the irrigation water requirement and drainage water storage of a pond. The irrigation water requirement was calculated using the Penman-Monteith equation and the crop coefficient method while considering field leakage and ef

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11

Ghorbani, Karim, Aimrun Wayayok, Masumeh Abbaszadeh, and Ahmad Fikri. "The effect of pipe collectors in reducing the drainage coefficient rate." Water Supply 15, no. 4 (February 4, 2015): 675–82. http://dx.doi.org/10.2166/ws.2015.014.

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A high groundwater table and soil salinity, especially in arid regions, often cause serious problems for agriculture. In irrigated areas the subsurface drainage can be an effective technique to lower the depth of the groundwater table and reduce soil salinity. In drainage systems, lateral pipes are designed to collect the free water from soil and convey it into collectors. In other words, collectors are commonly designed to convey drainage water from laterals downstream, while the laterals play an additional role in removing excess water from irrigated land. The present research was conducted

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12

Thrinch, Nhi, and Honh Thung. "The Effect of Variations in Drainage on Infiltration Rates in Pore Cylindrical Drainage." Journal La Multiapp 2, no. 3 (August 12, 2021): 33–39. http://dx.doi.org/10.37899/journallamultiapp.v2i3.393.

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Inundation and floods are caused by a combination of factors including lower rain catchment areas, decreasing infiltration rates, and an uneven distribution of rainfall throughout the year, which all combine to create flooding and inundation issues. The alternative option is to install an efficient drainage system that is ecologically friendly, since in addition to its role of accommodating and draining water, it also has the additional purpose of absorbing water into the subsurface soil layer. A pore hole is created at the bottom of the drainage channel in order for the water to be absorbed.

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13

Skaggs, R. Wayne. "Coefficients for Quantifying Subsurface Drainage Rates." Applied Engineering in Agriculture 33, no. 6 (2017): 793–99. http://dx.doi.org/10.13031/aea.12302.

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Abstract. It is proposed that technical papers on drainage research studies and engineered design projects should report standard coefficients or parameters that characterize the hydraulics of the system. The following coefficients define key subsurface drainage rates that can be used to quantify and compare the hydraulics of drainage systems across sites, soils and geographic locations. (1) The steady subsurface drainage rate (cm/d) corresponding to a saturated profile with a ponded surface. This subsurface drainage rate defines the length of time that water remains ponded on the soil surface

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14

Miyasaka, Yoshio, Kenzoh Yada, Takashi Ohwada, Takao Kitahara, Akira Kurata, and Katsumi Irikura. "An analysis of the venous drainage system as a factor in hemorrhage from arteriovenous malformations." Journal of Neurosurgery 76, no. 2 (February 1992): 239–43. http://dx.doi.org/10.3171/jns.1992.76.2.0239.

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✓ The authors studied the venous drainage system and its impairment in relation to risk of hemorrhage in 108 cases of supratentorial arteriovenous malformation (AVM). The proportion of AVM's undergoing hemorrhage (hemorrhagic rate) was calculated in relation to: 1) the number of draining veins (one, two, or three or more); 2) the presence or absence of impairment in venous drainage (severe stenosis or occlusion in draining veins); and 3) the location of draining veins (deep venous drainage alone, superficial venous drainage alone, or a combination of the two). Statistical analysis demonstrated

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15

Hu, Qiujia, Shiqi Liu, Shuxun Sang, Huihuang Fang, Ashutosh Tripathy, Ling Yan, Mengfu Qin, and Chonghao Mao. "Numerical analysis of drainage rate for multilayer drainage coalbed methane well group in Southern Qinshui basin." Energy Exploration & Exploitation 38, no. 5 (August 6, 2020): 1535–58. http://dx.doi.org/10.1177/0144598720946494.

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Multilayer drainage is one of the important technologies for coalbed methane (CBM) production in China. In this study, a multi-field fully coupled mathematical model for CBM production was established to analyze the multilayer drainage of CBM well group in southern Qinshui basin. Based on the numerical simulation results, the characteristics of CBM well production under different drainage rates and key factors influencing the CBM production were further discussed. The results show that the effect of an increased drainage rate on gas production of CBM wells and CBM recovery of No.3 coal seam is

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16

Cokar, M., M. S. S. Kallos, and I. D. D. Gates. "A New Thermogeomechanical Theory for Gravity Drainage in Steam-Assisted Gravity Drainage." SPE Journal 18, no. 04 (April 22, 2013): 736–42. http://dx.doi.org/10.2118/163136-pa.

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Summary Oil-sands reservoirs in western Canada hold more than 170 billion bbl of recoverable heavy oil and bitumen representing a significant source of unconventional oil. At in-situ conditions, the majority of this oil has essentially no initial mobility because of its high viscosity, which is typically in the hundreds of thousands to millions of centipoises. In steam-assisted gravity drainage (SAGD), steam injected into the formation heats oil at the edge of a depletion chamber, thus raising the mobility, ko/μo, of bitumen. Three main effects account for the increase of oil mobility. First,

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17

Coale, F. J., F. T. Izuno, and A. B. Bottcher. "Phosphorus in Drainage Water from Sugarcane in the Everglades Agricultural Area as Affected by Drainage Rate." Journal of Environmental Quality 23, no. 1 (January 1994): 121–26. http://dx.doi.org/10.2134/jeq1994.00472425002300010019x.

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18

Fang, Q. X., R. W. Malone, L. Ma, D. B. Jaynes, K. R. Thorp, T. R. Green, and L. R. Ahuja. "Modeling the effects of controlled drainage, N rate and weather on nitrate loss to subsurface drainage." Agricultural Water Management 103 (January 2012): 150–61. http://dx.doi.org/10.1016/j.agwat.2011.11.006.

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19

Bell, M. J., B. J. Bridge, G. R. Harch, and D. N. Orange. "Rapid internal drainage rates in Ferrosols." Soil Research 43, no. 4 (2005): 443. http://dx.doi.org/10.1071/sr04063.

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Adoption of conservation tillage practices on Red Ferrosol soils in the inland Burnett area of south-east Queensland has been shown to reduce runoff and subsequent soil erosion. However, improved infiltration resulting from these measures has not improved crop performance and there are suggestions of increased loss of soil water via deep drainage. This paper reports data monitoring soil water under real and artificial rainfall events in commercial fields and long-term tillage experiments, and uses the data to explore the rate and mechanisms of deep drainage in this soil type. Soils were charac

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20

Rusdiansyah, Rusdiansyah. "PENGARUH ADANYA MATERIAL BERPORI TERHADAP KARAKTERISTIK KONSOLIDASI TANAH LEMPUNG LUNAK LAHAN BASAH." Jurnal Kacapuri : Jurnal Keilmuan Teknik Sipil 1, no. 2 (December 1, 2018): 127. http://dx.doi.org/10.31602/jk.v1i2.1788.

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Salah satu cara untuk mempercepat aliran air maupun laju konsolidasi tanah lempung lunak lahan basah yaitu dengan menambahkan material porous didalam tanah maupun menggunakan drainasi vertical. Selama ini telah berkembang teknologi percepatan konsolidasi dengan vertical drain berbahan geosintetis. Selain berbahan geosintetis, bahan lainnya untuk material vertical drain masih terus dikembangkan untuk mencari keandalan yang ekonomis.Adapun yang menjadi permasalahan dalam penelitian ini adalah bagaimana derajat konsolidasi yang dihasilkan dari hasil pengujian konsolidasi tanah lempung lunak lahan

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21

Song, Youngseok, and Moojong Park. "A Study on the Development of Reduction Facilities’ Management Standards for Agricultural Drainage for Disaster Reduction." Sustainability 13, no. 17 (August 26, 2021): 9595. http://dx.doi.org/10.3390/su13179595.

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The agricultural drainage in rural area plays important roles in water supply and drainage for crop cultivation. Various kinds of debris near agricultural drainage, however, causes sedimentation in the drainage during rainfall. The debris introduced into the agricultural drainage moves out of the drainage under a high flow rate. This causes a reduction in the flow rate, which may affect the discharge capacity, resulting in crop damage. This study developed a reduction facility to reduce debris entering agricultural drainage and analyzed the performance by measuring the capture efficacy in the

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Nasyirah, Nibras, Dedi Kalsim, and Satyanto Saptomo. "Analysis of The Rate of Saline Soil Leaching by Using Subsurface Drainage." Jurnal Keteknikan Pertanian 03, no. 2 (October 1, 2015): 1–8. http://dx.doi.org/10.19028/jtep.03.2.89-96.

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Starkov, Yu G., R. D. Zamolodchikov, S. V. Dzhantukhanova, M. I. Vyborniy, K. V. Lukich, A. S. Ibragimov, I. M. Goncharov, and V. Yu Lavrentyeva. "The results of endosonography-assisted internal drainage of pancreatic pseudocyst." Annaly khirurgicheskoy gepatologii = Annals of HPB surgery 24, no. 1 (April 2, 2019): 43–52. http://dx.doi.org/10.16931/1995-5464.2019143-52.

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Aim.To compare immediate and long-term results of internal drainage of pancreatic pseudocyst by using of endosonography-assisted and open surgical approaches.Material and methods.EUS-assisted internal drainage of pancreatic pseudocyst was performed in 32 patients in 2011–2016. Open drainage procedures were carried out on the other 32 patients.Results.In the group of endoscopic drainage, technical success rate, clinical success rate and complication rate were 97%, 85% and 26%, respectively. There were no recurrent pseudocysts in long-term period. Comparison with open surgery confirmed advantage

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Rungsakulkij, Narongsak, Varinthip Thongchai, Wikran Suragul, Watoo Vassanasiri, Pongsatorn Tangtawee, Paramin Muangkaew, Somkit Mingphruedhi, and Suraida Aeesoa. "Association of the rate of bilirubin decrease with major morbidity in patients undergoing preoperative biliary drainage before pancreaticoduodenectomy." SAGE Open Medicine 9 (January 2021): 205031212110396. http://dx.doi.org/10.1177/20503121211039667.

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Objective: The objective of this study was to examine the relationship between the rate of bilirubin decrease following preoperative biliary drainage before pancreaticoduodenectomy and postoperative morbidity. Methods: Records of patients who underwent pancreaticoduodenectomy at the Department of Surgery in Ramathibodi Hospital between January 2008 and December 2019 were retrospectively reviewed. The patients were classified into either an adequate or inadequate drainage rate groups according to the bilirubin decrease rate. Major morbidity was defined as higher than grade II in the Clavien-Din

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Tsutsumi, Kazuo, Keiichirou Maeda, Akira Iijima, Masaaki Usui, Yoshihumi Okada, and Takaaki Kirino. "The relationship of preoperative magnetic resonance imaging findings and closed system drainage in the recurrence of chronic subdural hematoma." Journal of Neurosurgery 87, no. 6 (December 1997): 870–75. http://dx.doi.org/10.3171/jns.1997.87.6.0870.

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✓ Although chronic subdural hematoma (CSDH) is a well-known entity, its recurrence rate has remained uncertain. There is little knowledge concerning whether the results of radiological imaging can be used to predict CSDH recurrence or whether surgical methods can influence this rate. The first aim of this study is to evaluate the relationship between the recurrence rate of CSDHs and their appearance on preoperative magnetic resonance (MR) or computerized tomography images. The second aim is to evaluate by means of a prospective randomized method the usefulness of closed-system drainage. From J

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Bishawi, Muath, Bradley Feiger, Neel Kurupassery, Konstantinos Economopoulos, Paul Suhocki, Theodore Pappas, George Truskey, and Amanda Randles. "Drainage Performance of a Novel Catheter Designed to Reduce Drainage Catheter Failure." Journal of Clinical Interventional Radiology ISVIR 4, no. 01 (April 2020): 09–15. http://dx.doi.org/10.1055/s-0040-1708570.

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Abstract Objective Efficient flow of fluids through drainage/infusion catheters is affected by surrounding tissue, organ compression, and scar tissue development, limiting or completely obstructing flow through drainage holes. In this work, we introduce a novel three-dimensional (3D) drainage catheter with protected side holes to reduce flow blockages. We then compare its drainage performance to standard straight and pigtail catheters using computer-generated catheter designs and flow analysis software. Methods Drainage performance was computed as flow rate through the catheter for a given pre

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Dickson, K. A., and R. Harding. "Decline in lung liquid volume and secretion rate during oligohydramnios in fetal sheep." Journal of Applied Physiology 67, no. 6 (December 1, 1989): 2401–7. http://dx.doi.org/10.1152/jappl.1989.67.6.2401.

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Reduced amniotic fluid volume often results in fetal lung hypoplasia. Our aim was to examine the effects of prolonged drainage of amniotic and allantoic fluids on lung liquid volume (Vl), secretion rate (Vs), and tracheal flow rate (Vtr) in fetal sheep. In five experimental animals, amniotic and allantoic fluids were drained from 107 to 135 days of gestation. The volume of fluid drained from the experimental animals was 411.8 +/- 24.4 ml/day (n = 140). In six control animals, amniotic fluid volume was 747.7 +/- 89.7 ml (n = 15). Wet and dry lung weights were 20-25% lower in experimental fetuse

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Xu, Ming, and You-Liang Tao. "Drainage versus No Drainage after Laparoscopic Cholecystectomy for Acute Cholecystitis: A Meta-Analysis." American Surgeon 85, no. 1 (January 2019): 86–91. http://dx.doi.org/10.1177/000313481908500138.

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To conduct a randomized controlled trial (RCT), meta-analysis to assess the effectiveness of drains in reducing complications after laparoscopic cholecystectomy (LC) for acute cholecystitis needs to be carried out. An electronic search of PubMed, Embase, Science Citation Index, and the Cochrane Library from January 1990 to January 2018 was performed to identify randomized clinical trials that compare prophylactic drainage with no drainage in LC for acute cholecystitis. The outcomes were calculated as odds ratios (ORs) with 95 per cent confidence intervals (CIs) using RevMan 5.2. Four RCTs, whi

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LUO, Jianhong, Jun LI, Ping HUANG, and Meiying HUANG. "Kinetic Rate Constant of Liquid Drainage from Colloidal Gas Aphrons." Chinese Journal of Chemical Engineering 17, no. 6 (December 2009): 955–59. http://dx.doi.org/10.1016/s1004-9541(08)60302-x.

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Si, Bing C., and Eeltje de Jong. "Determining Long-Term (Decadal) Deep Drainage Rate Using Multiple Tracers." Journal of Environmental Quality 36, no. 6 (November 2007): 1686–94. http://dx.doi.org/10.2134/jeq2007.0029.

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David Suits, L., TC Sheahan, C.-Y. Yune, and C.-K. Chung. "Consolidation Test at Constant Rate of Strain for Radial Drainage." Geotechnical Testing Journal 28, no. 1 (2005): 11922. http://dx.doi.org/10.1520/gtj11922.

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Vranešević, Milica, Andrea Salvai, Atila Bezdan, and Radoš Zemunac. "Assessment of Runoff and Drainage Conditions in a North Banat Sub-Catchment, North-Eastern Serbia." Journal of Environmental Geography 12, no. 3-4 (November 1, 2019): 13–19. http://dx.doi.org/10.2478/jengeo-2019-0008.

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Abstract The lowland area of the southeastern part of the Carpathian Basin is exposed to extreme hydrological conditions. The monitoring and analysis of the excess inland water are necessary in order to understand the scope and direction of the development of this type of flooding. When solving the problem of the drainage of an area and dimensioning drainage systems, one of the most important steps is to calculate the rate of runoff. Before calculating the rate of runoff, it is necessary to perform various analysis such as: hydrological, hydrogeological, pedological and land use analysis. The

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Feng, Jian Gang, Li Feng Bu, You Wei Xu, and Bin Mao. "Research on the Field Test Methods of Flow Rate and Water Level of Urban Drainage Pumping Stations." Advanced Materials Research 718-720 (July 2013): 903–7. http://dx.doi.org/10.4028/www.scientific.net/amr.718-720.903.

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The flow rate and water level measure is one key work of the pumping station field test. And the reliable, applicable, economic and effective measurement method and instruments are the key decisive factors of the field test. The urban drainage pumping stations usually pump sewage, and its inlet structure and outlet structure generally use closed arrangement. These make the flow rate and water level measurement of the field test become complicated. Based on the characteristics of urban drainage pumping station, this paper analyzed the measurement methods of flow rate and water level parameters

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Silins, U., and R. L. Rothwell. "Spatial patterns of aerobic limit depth and oxygen diffusion rate at two peatlands drained for forestry in Alberta." Canadian Journal of Forest Research 29, no. 1 (January 1, 1999): 53–61. http://dx.doi.org/10.1139/x98-179.

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The spatial variability of soil aeration (aerobic limit depth and oxygen diffusion rate (ODR)) among different drainage ditch spacings and at various distances from drainage ditches was examined at two peatlands drained for forestry in north-central Alberta. Drainage lowered mean water table levels (p < 0.001) at both peatlands. Lower water table levels within drained areas were associated with greater aerobic limit depths (p < 0.001) and greater ODR (p < 0.001 at Saulteaux River; p < 0.027 at Wolf Creek) compared with undrained areas of both peatlands. Spatial patterns of aerobic

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Smith, Benjamin E., Noel Gourmelen, Alexander Huth, and Ian Joughin. "Connected subglacial lake drainage beneath Thwaites Glacier, West Antarctica." Cryosphere 11, no. 1 (February 8, 2017): 451–67. http://dx.doi.org/10.5194/tc-11-451-2017.

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Abstract. We present conventional and swath altimetry data from CryoSat-2, revealing a system of subglacial lakes that drained between June 2013 and January 2014 under the central part of Thwaites Glacier, West Antarctica (TWG). Much of the drainage happened in less than 6 months, with an apparent connection between three lakes spanning more than 130 km. Hydro-potential analysis of the glacier bed shows a large number of small closed basins that should trap water produced by subglacial melt, although the observed large-scale motion of water suggests that water can sometimes locally move agains

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Nakaguchi, Hiroshi, Takeo Tanishima, and Norio Yoshimasu. "Relationship between drainage catheter location and postoperative recurrence of chronic subdural hematoma after burr-hole irrigation and closed-system drainage." Journal of Neurosurgery 93, no. 5 (November 2000): 791–95. http://dx.doi.org/10.3171/jns.2000.93.5.0791.

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Object. This study was conducted to determine the best position for the subdural drainage catheter to achieve a low recurrence rate after burr-hole irrigation and closed-system drainage of chronic subdural hematoma (CSDH).Methods. The authors studied 63 patients with CSDH in whom the drainage catheter tip was randomly placed and precisely determined on postoperative computerized tomography (CT) scans and 104 patients with CSDH in whom CT scans were obtained 7 days postsurgery. The location of the subdural drainage catheter, the maximum postoperative width of the subdural space, and the percent

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Upadhyay, Hemant, and T. K. Kundu. "Drain Rate and Liquid Level Simulation in Blast Furnace Hearth Using Plant Data." ISRN Metallurgy 2013 (July 30, 2013): 1–7. http://dx.doi.org/10.1155/2013/960210.

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Proper understanding and control of drainage of hot metal and slag from hearth are essential for a stable and efficient blast furnace operation. Various operational problems like irregular casting intervals, damage to lining, low blast intake, furnace pressurization, and so forth are normally encountered when liquid levels in the hearth exceed a critical limit where hearth coke and deadman start to float. Estimation of drain rate and liquid level in hearth needs to be simulated based on the operating parameters available as carrying out any direct measurement is extremely difficult due to the

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Hakuta, Ryunosuke, Hirofumi Kogure, Yousuke Nakai, Hiroshi Kawakami, Hiroyuki Maguchi, Tsuyoshi Mukai, Takuji Iwashita, et al. "Unilateral versus Bilateral Endoscopic Nasobiliary Drainage and Subsequent Metal Stent Placement for Unresectable Malignant Hilar Obstruction: A Multicenter Randomized Controlled Trial." Journal of Clinical Medicine 10, no. 2 (January 8, 2021): 206. http://dx.doi.org/10.3390/jcm10020206.

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(1) Background: Endoscopic management of hilar biliary obstruction is still challenging. Compared with unilateral drainage, bilateral drainage could preserve larger functional liver volume and potentially improve clinical outcomes. To evaluate the effectiveness of bilateral drainage, we conducted this multicenter randomized controlled study. (2) Methods: Patients with unresectable malignant hilar biliary obstruction were assigned to unilateral or bilateral group. At first, patients underwent endoscopic nasobiliary drainage (ENBD), and subsequently underwent self-expandable metallic stent (SEMS

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Hakuta, Ryunosuke, Hirofumi Kogure, Yousuke Nakai, Hiroshi Kawakami, Hiroyuki Maguchi, Tsuyoshi Mukai, Takuji Iwashita, et al. "Unilateral versus Bilateral Endoscopic Nasobiliary Drainage and Subsequent Metal Stent Placement for Unresectable Malignant Hilar Obstruction: A Multicenter Randomized Controlled Trial." Journal of Clinical Medicine 10, no. 2 (January 8, 2021): 206. http://dx.doi.org/10.3390/jcm10020206.

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(1) Background: Endoscopic management of hilar biliary obstruction is still challenging. Compared with unilateral drainage, bilateral drainage could preserve larger functional liver volume and potentially improve clinical outcomes. To evaluate the effectiveness of bilateral drainage, we conducted this multicenter randomized controlled study. (2) Methods: Patients with unresectable malignant hilar biliary obstruction were assigned to unilateral or bilateral group. At first, patients underwent endoscopic nasobiliary drainage (ENBD), and subsequently underwent self-expandable metallic stent (SEMS

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Chávez-Gómez, Viridiana, José Chávez-Monter, Jaime Ordoñez-Granja, Yarel Barba-Ruiz, Rafael Avendaño-Pradel, Edgardo Ruiz-García, and Carlos Castillo-Rangel. "Treatment of Subdural Hematoma: Comparative Analysis between Subdural Drainage with Negative Pressure versus other Drainages." International Journal of Medical and Surgical Sciences 4, no. 1 (October 27, 2018): 1089–99. http://dx.doi.org/10.32457/ijmss.2017.001.

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Report the recurrence rate of negative pressure subdural drainage (NPSD) versus to other kind of drains (OD). Design and Methods: A study was conducted cross-sectional and we retrospectively analyzed on the database of the neurosurgical service and we looked for all surgical procedures recorded from January 2006 to December 2015. Procedures with preoperative diagnosis of subdural hematoma (SDH) were selected, with a to- tal of 364 interventions, were excluded patients with postoperative diagnosis different from SDH and eliminated those who did not have complete data, recurrence was identified,

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Ba, Yongjiang, Ping Yue, Joseph W. Leung, Haiping Wang, Yanyan Lin, Bing Bai, Xiaoliang Zhu, et al. "Percutaneous transhepatic biliary drainage may be the preferred preoperative drainage method in hilar cholangiocarcinoma." Endoscopy International Open 08, no. 02 (January 22, 2020): E203—E210. http://dx.doi.org/10.1055/a-0990-9114.

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Abstract Background and study aims Preoperative biliary drainage of hilar cholangiocarcinoma (HC) is controversial. The goal of this study was to compare the clinical outcome and associated complications for types II, III, and IV HC managed by percutaneous transhepatic biliary drainage (PTBD) and endoscopic retrograde cholangiopancreatography (ERCP). Patients and methods Between January 2011 and June 2017, a total of 180 patients with II, III, and IV HC were enrolled in this retrospective cohort study. According to the drainage method, patients were divided into two groups: PTBD (n = 81) and E

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Giovannini, Marc, and Erwan Bories. "EUS-Guided Biliary Drainage." Gastroenterology Research and Practice 2012 (2012): 1–5. http://dx.doi.org/10.1155/2012/348719.

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The echoendoscopic biliary drainage is an option to treat obstructive jaundices when ERCP drainage fails. These procedures compose alternative methods to the side of surgery and percutaneous transhepatic biliary drainage, and it was only possible by the continuous development and improvement of echoendoscopes and accessories. The development of linear setorial array echoendoscopes in early 1990 brought a new approach to diagnostic and therapeutic dimenion on echoendoscopy capabilities, opening the possibility to perform punction over direct ultrasonographic view. Despite of the high success ra

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Poinar, Kristin, and Lauren C. Andrews. "Challenges in predicting Greenland supraglacial lake drainages at the regional scale." Cryosphere 15, no. 3 (March 24, 2021): 1455–83. http://dx.doi.org/10.5194/tc-15-1455-2021.

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Abstract. A leading hypothesis for the mechanism of fast supraglacial lake drainages is that transient extensional stresses briefly allow crevassing in otherwise compressional ice flow regimes. Lake water can then hydrofracture a crevasse to the base of the ice sheet, and river inputs can maintain this connection as a moulin. If future ice sheet models are to accurately represent moulins, we must understand their formation processes, timescales, and locations. Here, we use remote-sensing velocity products to constrain the relationship between strain rates and lake drainages across ∼ 1600 km2 i

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Li, Siqian. "Engineering Practice of Ultra-high Pressure Hydraulic Slotting and Pressure Relief Pumping in Through Layer Hole." E3S Web of Conferences 236 (2021): 01029. http://dx.doi.org/10.1051/e3sconf/202123601029.

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In order to solve the problems of low gas drainage rate and long drainage time in thick coal seam with low permeability, ultra-high pressure hydraulic slotting pressure relief and permeability enhancement technology was applied in the test. The practice shows that after adopting the ultra-high pressure hydraulic slotting, the gas drainage rate is greatly improved, the time for reaching the standard of drainage is shortened, and the difficult problem of gas control in the mining face of thick coal seam is solved, which provides technical guidance for high-efficiency gas control in thick coal se

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Dufková, R., T. Kvítek, and J. Voldřichová. "Soil organic carbon and nitrogen characteristics in differently used grasslands at sites with drainage and without drainage." Plant, Soil and Environment 51, No. 4 (November 19, 2011): 165–72. http://dx.doi.org/10.17221/3570-pse.

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Extensive management (absence of management) of unfertilized permanent grasslands was examined for five years from the aspect of its influence on soil chemical properties of horizon A in a floodplain locality of the Crystalline Complex, in relation to water regime regulation, reclamations and liming. These treatments: without mowing (0), one cut (1) and two cuts (2) per year were used at sites without drainage (WD), with drainage (D) and with drainage water retardation (R). These average values were measured at all sites and for all treatments: content of soil organic carbon C<sub>org&lt

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Amir, Ida, Pradeep Morar, and Antonio Belloso. "Postoperative drainage in head and neck surgery." Annals of The Royal College of Surgeons of England 92, no. 8 (November 2010): 651–54. http://dx.doi.org/10.1308/003588410x12699663904754.

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INTRODUCTION A major factor affecting patients’ length of hospitalisation following head and neck surgery remains the use of surgical drains. The optimal time to remove these drains has not been well defined. A routine practice is to measure the drainage every 24 h and remove the drain when daily drainage falls below 25 ml. This study aims to determine whether drainage measurement at shorter intervals decreases the time to drain removal and hence the length of in-patient stays. PATIENTS AND METHODS A 6-month prospective observational study was performed. The inclusion criteria were patients wh

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Tortajada, Pauline, Alain Sauvanet, Stephanie Truant, Nicolas Regenet, Régis Souche, Stéphane Benoist, Fabrice Muscari, et al. "Does Fungal Biliary Contamination after Preoperative Biliary Drainage Increase Postoperative Complications after Pancreaticoduodenectomy?" Cancers 12, no. 10 (September 30, 2020): 2814. http://dx.doi.org/10.3390/cancers12102814.

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(1) Background: preoperative biliary drainage before pancreaticoduodenectomy (PD) is associated with bacterial biliary contamination (>85%) and a significant increase in global and infectious complications. In view of the lack of published data, the aim of our study was to investigate the impact of fungal biliary contamination after biliary drainage on the complication rate after PD. (2) Methods: a multicentric retrospective study that included 224 patients who underwent PD after biliary drainage with intraoperative biliary culture. (3) Results: the global rate of positive intraoperative bi

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Zhou, Qiao-Nian, and W. P. Graebel. "Free-Surface Oscillations in a Slowly Draining Tank." Journal of Applied Mechanics 59, no. 2 (June 1, 1992): 438–44. http://dx.doi.org/10.1115/1.2899539.

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The initial behavior of a free surface in a draining (filling) circular tank is analyzed using a linearized model. The withdrawal (injection) of fluid damps (enhances) oscillations which either exist before the withdrawal (filling) or are induced by the withdrawal (injection). The initial growth rate of the drainage-initiated free-surface oscillations strongly depends on the initial behavior of the drain rate function. If the drain is turned on gradually, the drainage-initiated free-surface oscillation is weaker compared to the forced one, so there are no drainage-initiated oscillations. Howev

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Uda, Hiroshi, Alhusain Nagm, Tsutomu Ichinose, Yohei Onishi, Masaki Yoshimura, Takashi Tsuruno, and Kenji Ohata. "Burr hole drainage without irrigation for chronic subdural hematoma." Surgical Neurology International 11 (May 2, 2020): 89. http://dx.doi.org/10.25259/sni_550_2019.

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Background: Chronic subdural hematoma (CSDH) is one of the most common neurosurgical conditions, with different strategies for treatment. Most recent trials favor the use of drainage to reduce the recurrence rate. However, few reports have discussed the efficacy of burr hole drainage without irrigation for treating CSDH. This study aimed to examine the efficacy of burr hole drainage without irrigation in a series of 385 symptomatic CSDH lesions. Methods: This retrospective study included a series of 385 symptomatic CSDH lesions in 309 patients, who underwent burr hole drainage without irrigati

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Wushouer, Abuduwaili, Ma Mu Ti Jiang A Ba Bai Ke Re, and Irshat Ibrahim. "Outcome of hybrid seton placement for the treatment of high complex anal fistulas with and without tube drainage: A prospective comparative study." European Journal of Inflammation 15, no. 2 (June 19, 2017): 124–30. http://dx.doi.org/10.1177/1721727x17715581.

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The aim of this study was to investigate the efficacy of treatment for complex anal fistula with cutting hybrid seton combined with tube drainage. A total of 66 consecutive patients with complex anorectal fistulae were divided into two groups: experimental group (group A with 36 patients) underwent cutting hybrid seton placement plus tube drainage and control group (group B with 30 patients) underwent same procedure without tube drainage. Comparison of clinical outcomes between two groups was conducted. The success rate, time for healing of the wound, postoperative pain, and recurrence rate we

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