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Journal articles on the topic 'Pipe whip'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 January 2023

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1

Reid, S. R., and J. L. Yang. "Non-linear dynamic analysis of cantilever whipping pipes." Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering 212, no. 3 (1998): 133–49. http://dx.doi.org/10.1243/0954408981529367.

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This paper presents the results of numerical dynamic analyses of a number of pipe whip problems based on non-linear shell theory using the DYNA3D (version 6.0) finite element code. The calculations are mainly concerned with the transient deformation of the pipes during the whipping process. The main purpose of the study is to check the efficacy of a recently published theoretical elastic-plastic, hardening-softening (e-p-h-s) model for pipe whip developed by Reid et al. [1, 2]. This model is based upon beam theory but allows for the effects of ovalization of the pipe cross-section on the momen

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2

Reid, S. R., and J. L. Yang. "Pipe Whip: In-Plane Whipping of Bent Cantilever Pipes." Journal of Pressure Vessel Technology 120, no. 2 (1998): 170–78. http://dx.doi.org/10.1115/1.2842236.

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The dynamic elastic-plastic behavior of a bent cantilever pipe subjected to an in-plane force pulse at its tip is described. A theoretical model based on a large deflection formulation of dynamic beam theory is described. This takes into account the plastic hardening-softening behavior which is characteristic of a pipe when it is subjected to large changes in curvature. This beam model was first formulated and applied by Reid et al. (1995b, 1996), who demonstrated that it was able to describe quite accurately the characteristics of freely whipping, straight cantilever pipes. The present paper

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3

Peek, R. "Pipe Whip—Bounding the Required Restraint Capacity." Journal of Pressure Vessel Technology 107, no. 4 (1985): 356–60. http://dx.doi.org/10.1115/1.3264465.

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Energy balance methods commonly in use for the design of pipe whip restraints are based on the solution for the motion of a rigid-plastic pipe before impact against the restraint, with the assumption that after impact, the whipping portion of the pipe continues to rotate about the plastic hinge location determined for conditions before impact. Such energy balance methods are not necessarily conservative because: 1) the plastic hinge which forms in the pipe moves after impact on the restraint; and 2) elastic pipe deformations are not considered. Here, upper and lower bounds to the required rest

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4

Dundulis, Gintautas, Robertas Alzbutas, Ronald F. Kulak, and Paul V. Marchertas. "Reliability analysis of pipe whip impacts." Nuclear Engineering and Design 235, no. 17-19 (2005): 1897–908. http://dx.doi.org/10.1016/j.nucengdes.2005.05.007.

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5

Yano, T., N. Miyazaki, and S. Miyazono. "Evaluation and Prediction of Critical Overhang Length Under Pipe Whip Accident." Journal of Pressure Vessel Technology 108, no. 2 (1986): 182–87. http://dx.doi.org/10.1115/1.3264767.

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When the pipe length between break exit and restraint is long in the pipe whip accident, the pipe will undergo a plastic collapse as the moment increases. The length at which plastic collapse may occur is called the critical overhang length, (OH)cr. The experimental results of (OH)cr show good agreement with the prediction by a static simplified estimation method for (OH)cr although the pipe whipping is a dynamic phenomenon. The diagrams of (OH)cr are also described for a range of sizes of stainless steel pipe under the loss of coolant accident conditions of light water reactors.

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6

Ueda, Shuzo. "Moment-rotation relationship considering flattening of pipe due to pipe whip loading." Nuclear Engineering and Design 85, no. 2 (1985): 251–59. http://dx.doi.org/10.1016/0029-5493(85)90290-0.

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7

Baum, M. R. "Pipe whip: A summary of the damage observed in BNL pipe-on-pipe impact tests." International Journal of Pressure Vessels and Piping 30, no. 3 (1987): 217–32. http://dx.doi.org/10.1016/0308-0161(87)90044-5.

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8

Reid, S. R., B. Wang, and M. Aleyaasin. "Structural modelling and testing of failed high energy pipe runs: 2D and 3D pipe whip." International Journal of Pressure Vessels and Piping 88, no. 5-7 (2011): 189–97. http://dx.doi.org/10.1016/j.ijpvp.2011.05.006.

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9

Prinja, N. K., and N. R. Chitkara. "Large rotation, large strain analysis of pipe whip with flow choking." Nuclear Engineering and Design 93, no. 1 (1986): 69–81. http://dx.doi.org/10.1016/0029-5493(86)90195-0.

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10

Liu, Feng, Yuchao Yang, and Yuelei Wu. "The Characteristic Transient Response of a Pressurized Cantilever Pipe Subjected to Transverse Impact at Its Tip." Shock and Vibration 2019 (May 22, 2019): 1–15. http://dx.doi.org/10.1155/2019/4030379.

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This paper describes an experimental study on the pure bending mechanical behavior of a pressurized pipe and adoption of a measured moment-curvature relationship under different working conditions in numerical simulations for transient pipe-whip prediction. To describe the effects of pipe contents and internal pressure, the governing equations were derived based on large deformation theory. Bending moment and axial force were uncoupled in the constitutive equation, and an experiment-based relationship between moment and curvature was adopted. The numerical simulations show that the present mod

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11

Ueda, Shuzo, Ryoichi Kurihara, Noriyuki Miyazaki, and Toshikuni Isozaki. "Analytical studies of four-inch pipe whip tests under BWR LOCA conditions." International Journal of Pressure Vessels and Piping 18, no. 3 (1985): 161–76. http://dx.doi.org/10.1016/0308-0161(85)90009-2.

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12

Kurihara, Ryoichi, Shuzo Ueda, and Shohachiro Miyazono. "Experimental and analytical studies of pipe whip tests under PWR LOCA conditions." Nuclear Engineering and Design 103, no. 3 (1987): 253–65. http://dx.doi.org/10.1016/0029-5493(87)90309-8.

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13

Dundulis, Gintautas, Eugenijus Uspuras, Ronald F. Kulak, and Algirdas Marchertas. "Evaluation of pipe whip impacts on neighboring piping and walls of the Ignalina Nuclear Power Plant." Nuclear Engineering and Design 237, no. 8 (2007): 848–57. http://dx.doi.org/10.1016/j.nucengdes.2005.12.013.

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14

Shaw, Amit, D. Roy, S. R. Reid, and M. Aleyaasin. "Reproducing kernel collocation method applied to the non-linear dynamics of pipe whip in a plane." International Journal of Impact Engineering 34, no. 10 (2007): 1637–54. http://dx.doi.org/10.1016/j.ijimpeng.2006.09.004.

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15

Peng, Ling-yun, Yu-ke Deng, Hua-ting Chen, Ying-jie Kang, and Xiang-xiu Li. "Finite Element Analysis and Test Study on Restraint of High-energy Pipe Whip in Conventional Island." KSCE Journal of Civil Engineering 23, no. 4 (2019): 1651–61. http://dx.doi.org/10.1007/s12205-019-0588-y.

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16

Struve, Daniel K. "Growing Blackgum Whips in Ground Beds Increases Survival and Growth Following Transplanting to Field." Journal of Environmental Horticulture 26, no. 2 (2008): 105–8. http://dx.doi.org/10.24266/0738-2898-26.2.105.

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Abstract Difficult-to-transplant species can be produced in containers and transplanted with high survival. However, circling roots can develop even in containers designed to prevent root malformation, requiring root pruning before transplanting and this results in transplant shock. In order to determine the effect of different containers and substrates on whip growth and survival after transplanting, blackgum (Nyssa sylvatica Marsh.) whips were grown in four container types (Spinout®-treated plastic, tall or short fiber containers or in ground beds) and two substrates (pine bark: Com-Til™ and

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17

Reid, S. R., T. X. Yuy, and J. L. Yangz. "An elastic–plastic hardening–softening cantilever beam subjected to a force pulse at its tip: a model for pipe whip." Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences 454, no. 1972 (1998): 997–1029. http://dx.doi.org/10.1098/rspa.1998.0194.

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18

Rodríguez, M., and A. Esteban. "Application of leak-before-break to primary loop piping to eliminate pipe whip restraints in a Spanish nuclear power plant." International Journal of Pressure Vessels and Piping 43, no. 1-3 (1990): 85–93. http://dx.doi.org/10.1016/0308-0161(90)90094-x.

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19

Yarmola, Victoriya. "Ergology of Western Polissian folk reed pipes." Ethnomusic 14, no. 1 (2018): 104–31. http://dx.doi.org/10.33398/2523-4846-2018-14-104-131.

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In the publication, a technological system of traditional whistling reed pipes produced by folk artists, widespread in Western Polissia, is revealed for the first time in a step-by-step process. The proposed exploration is based on its expeditionary records and material collected by various folklorists and employ- ees of Kyiv and Lviv research institutions, as well as some literary sources. 131 The existence of three types of nozzle instruments, the names of which correspond to the methods of their production: a pipe made from bark, a vykrutka and kolianka are established. Western Polissian fo

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20

Struve, Daniel K. "Bare Root Shade Tree Whip Production in Containers." Journal of Environmental Horticulture 14, no. 1 (1996): 13–17. http://dx.doi.org/10.24266/0738-2898-14.1.13.

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Abstract A production system for producing bare root shade tree whips in containers is described. First year growth, transplant survival and regrowth of eight taxa were studied. Red oak (Quercus rubra L.) seedlings grown in 2:2:1, 2:1:2 or 3:1:1 sand:Comtil (composted municipal sewage sludge):Isolite (by vol) bare root media had first year height growth (100 cm, approximately 40 in) similar to seedlings grown in a 3:0.5:0.5:1 pine bark:peat moss:Comtil:sand medium (by vol). In a 2:2:1 sand:Comtil:Isolite (by vol) medium, red oak seedling height growth was greatest when 60 g (2.1 oz) slow relea

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21

Struve, Daniel K., and Edward L. McCoy. "Physical and Chemical Properties of Media Suitable for Containerized Bare Root Whip Production." Journal of Environmental Horticulture 14, no. 3 (1996): 137–41. http://dx.doi.org/10.24266/0738-2898-14.3.137.

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Abstract Moisture retention characteristics, pH, cation exchange capacity (CEC) and bulk density of media suitable for containerized bare root whip production and the effects of these media on red oak (Quercus rubra L.) and blackgum (Nyssa sylvatica Marsh.) growth were studied. Media tested were: 3:1:1, 2:1:2 and 2:2:1 (by vol) sand:composted municipal sewage sludge [Comtil]:Isolite or zeolite. A similar series of media were prepared by substituting rice hulls for sand. Similar physical properties were determined for three media components: rice hulls, Comtil and pine bark. Rice hulls and Comt

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22

Garofalo, Erik, Luca Cecchini, Matteo Bevione, and Alessandro Chiolerio. "Triboelectric Characterization of Colloidal TiO2 for Energy Harvesting Applications." Nanomaterials 10, no. 6 (2020): 1181. http://dx.doi.org/10.3390/nano10061181.

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Nowadays, energy-related issues are of paramount importance. Every energy transformation process results in the production of waste heat that can be harvested and reused, representing an ecological and economic opportunity. Waste heat to power (WHP) is the process of converting the waste heat into electricity. A novel approach is proposed based on the employment of liquid nano colloids. In this work, the triboelectric characterization of TiO2 nanoparticles dispersed in pure water and flowing in a fluorinated ethylene propylene (FEP) pipe was conducted. The idea is to exploit the waste heat to

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23

Struve, Daniel K. "Growth of Several Tree spp. in Containers in Response to N Loading, Fertilizer Type and Substrate." Journal of Environmental Horticulture 20, no. 3 (2002): 133–37. http://dx.doi.org/10.24266/0738-2898-20.3.133.

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Abstract Two studies were conducted to determine if Comtil, a composted municipal sewage sludge, could be used as a substrate component and a slow release N source in a containerized whip production system and to determine the growth potential of nine tree species not widely grown in the industry. Also, in the second study the effects of fertilizer type on five oak species were studied. In the first study, total N from Comtil was estimated to be 64 gm per No. 3 nursery container, representing between 48 and 100% of the N loading. Despite the potential high N loading from Comtil, tree height wa

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24

Ye, Chao Liang, Huai Ping Feng, and Yao Jun Liu. "In Situ Study on Reinforced Effect of Silt by Ram-Compaction Gravel Pile with End Expansion." Advanced Materials Research 446-449 (January 2012): 3428–31. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.3428.

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Ram-compaction gravel pile with end expansion is widely adopted in the treatment of silty clay foundations. In this paper, the bearing properties of rammed gravel pile reinforced foundations and soil between piles were investigated by use of static load tests and heavy-duty dynamic penetration test. It is demonstrated that the settlement curves (P-S curve) of ram-compaction gravel pile with end expansion reinforced foundation and soil between piles were monotonic, without turning point being observed. With the increases of pile length, the bearing capacity of pile increases. According to the e

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25

Tozer, Douglas C., Jennifer C. Hoare, Jeremy E. Inglis, Joe Yaraskavitch, Hugo Kitching, and Sandy Dobbyn. "Clearcut with seed trees in red pine forests associated with increased occupancy by Eastern Whip-poor-wills." Forest Ecology and Management 330 (October 2014): 1–7. http://dx.doi.org/10.1016/j.foreco.2014.06.038.

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26

Akresh, Michael E., and David I. King. "Eastern whip-poor-will breeding ecology in relation to habitat management in a pitch pine-scrub oak barren." Wildlife Society Bulletin 40, no. 1 (2016): 97–105. http://dx.doi.org/10.1002/wsb.621.

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27

Yadav, Dhiraj Kumar, Priyanka Dhurve, and Vinkel Kumar Arora. "Mathematical modeling and drying characteristics of thin layer drying of bitter gourd in evacuated tube solar dryer-without heat pipe." Journal of Physics: Conference Series 2312, no. 1 (2022): 012060. http://dx.doi.org/10.1088/1742-6596/2312/1/012060.

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Abstract Evacuated tube solar dryer-without heat pipe (ETSD-WHP), also called direct flow evacuated tube solar dryer was used for preservation and quality analysis of bitter gourd (Momordica charantia). Mathematical modeling with eight semi-empirical models and drying characteristics of bitter gourd were carried out in the current study. Bitter gourd was dried in 12 hours from an initial moisture level of 91.85 % to a final moisture level of 6.77 %. The maximum rate of mass removal (drying rate), was found to be 15.15 g moisture/g dry matter/hr at 1 PM when solar radiation was high i.e 735 W/m

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28

Jannah, Husnul, and Masiah Masiah. "Analisis Potensi Kandungan Tanaman Obat untuk Menunjang Kesehatan Santri." Bioscientist : Jurnal Ilmiah Biologi 8, no. 2 (2020): 262. http://dx.doi.org/10.33394/bjib.v8i2.3158.

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Research on the potential analysis of medicinal plant content has been carried out to support the health of students at the Nurul Islam Sekarbela Islamic Boarding School, Mataram City. Primary data collection is carried out by involving the community through interviews with local community groups and individual community members. The selection criteria were based on the informants' abilities and traditional medical practices. In data collection, the interview technique used was "open ended". This data collection technique is also used to explore knowledge systems regarding the diversity of typ

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29

Nasswettrová, Andrea, and Květoslav Nikl. "Microscopic identification of changes in beech (Fagus sylvatica L.) and pine (Pinus sylvestris L.) cell structure after drying using high-frequency energy of the microwave band." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 59, no. 1 (2011): 173–82. http://dx.doi.org/10.11118/actaun201159010173.

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High-frequency energy transfer represents a progressive technology with an increasing range of industrial application. One of the main advantages of microwave technology is the volumetric principle of energy transfer. Based on this fact, the gradients of moisture content and temperature are identical and when the wood is dried it helps transport moisture from porous material and it also helps and transport free water whit lumen of cells. From a practical viewpoint, microwave heating increases the quality of the dried material and reduces the necessary processing. The quality of a dry material

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30

Murray, Christine L., Glen P. Lumis, and Calvin Chong. "Response of Shade Trees Grown in In-ground Containers to Three Container Substrates." Journal of Environmental Horticulture 15, no. 4 (1997): 183–86. http://dx.doi.org/10.24266/0738-2898-15.4.183.

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Abstract Two-year-old branched seedling whips of green ash, Fraxinus pennsylvanica Marsh. and European birch, Betula pendula Roth, were grown for two seasons (1991 and 1992) in 38-liter (# 10) rigid, plastic, in-ground containers in three different substrate treatments: 10%, 50% and 100% soil, containing 10:30:60, 50:30:20, or 100:0:0 of field soil:sphagnum peat:ground pine bark, respectively. Trees were also planted directly into the soil (field-grown) to serve as a baseline control treatment. Top dry mass, trunk diameter and root dry mass in 1991 and 1992 and two size categories of root dry

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31

Abdulfatai, Usman. "Quantitative Structure-Properties Relationships and Molecular Dynamic Simulations of Some Lubricant Additives (LAs)." issue 2 3, no. 2 (2020): 36–45. http://dx.doi.org/10.48103/jjeci35202.

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The degradation of this zinc-dialkyl-dithiophosphate (ZDDP), at a temperature less than 246K often leads to the release of phosphorus, sulphur, and zinc which are indirectly responsible for the emission of poisonous gas from the exhaust pipe of the motor cars. Four QSPR mathematical models were generated from 39 structures of lubricant additives (LAs) and the structural features were found to corresponds to the coefficients of; internal correlation (R2 ) of 0.95, adjusted squared correlation (R2 adj) of 0.94, Cross-validation (Q2cv) of 0.90, and the external validation (R2 pred) of 0.54. The m

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32

Wimberley, Kathryn, and Dr Pat Williams. "THE EFFECTS OF DIFFERENT FERTILIZER APPLICATIONS ON Acer rubrum `AUTUMN BLAZE' AND Acer rubrum `RED SUNSET'ON POT-IN-POT NURSERY PRODUCTION." HortScience 40, no. 3 (2005): 884c—884. http://dx.doi.org/10.21273/hortsci.40.3.884c.

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Kentucky West Nursery Cooperative, producers of pot-in-pot trees, needed recommendations on slow-release fertilizer applications due to regional environmental influences affecting production. Murray State University established a pot-in-pot tree nursery to research these influences in 2004. Two different fertilizer applications in three different treatments were tested on one-year old bare-root whips of Acer rubrum `Red Sunset' and `Autumn Blaze'. These trees were planted in 100% pine bark in 15-gallon pots and placed in the sockets with a complete random split-block design. Drip irrigation by

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33

Purwanto, Agus, Idham Khalid, and Adi Novriansyah. "Analisa Pekerjaan Membongkar Sumbat Frac Menggunakan Coiled-Tubing ada Sumur Unkonventional." Lembaran publikasi minyak dan gas bumi 56, no. 2 (2022): 77–88. http://dx.doi.org/10.29017/lpmgb.56.2.1172.

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Sumur unconventional memiliki kandungan unsur shale-oil dan shale-gas, sebagaimana terdapat juga pada sumur konvensional. Penggunaan coiled-tubing (CT) merupakan salah satu teknik yang dianggap paling baik dalam operasi pemboran sumur unconventional. Pada rig konvensional, pipa/tubing/strings dapat disambung atau diputuskan satu persatu memakai sambungan ulir. Cara ini tentunya membutuhkan waktu yang lebih lama, tenaga kerja dan peralatan yang lebih banyak, resiko yang lebih tinggi, dan sebagainya. Penelitian ini bertujuan untuk mengetahui efektivitas teknik penggunaan CT pada pekerjaan millin

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34

Chong, Calvin, and Glen P. Lumis. "Mixtures of paper mill sludge, wood chips, bark, and peat in substrates for pot-in-pot shade tree production." Canadian Journal of Plant Science 80, no. 3 (2000): 669–75. http://dx.doi.org/10.4141/p99-083.

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There is little scientific information on substrates for pot-in-pot shade tree production. The objective of this research was to examine various organic-waste-derived substrates for growing shade trees in pot-in-pot systems. Seedling whips of green ash (Fraxinus pennsylvanica Marsh.), Japanese birch [Betula platyphylla var. japonica (Miq.) Hara], and silver maple (Acer saccharinum L.) were grown for two seasons in 76-L containers. The containers were trickle irrigated and fertilized with controlled-release fertilizers. Treatments included a control nursery mix (50% by volume of pine bark:15% c

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35

Schiano Moriello, D., F. Bosi, R. Torii, and P. J. Tan. "In-plane pipe whip: Post-failure dynamic response." International Journal of Solids and Structures, July 2022, 111860. http://dx.doi.org/10.1016/j.ijsolstr.2022.111860.

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36

"06/01191 Reliability analysis of pipe whip impacts." Fuel and Energy Abstracts 47, no. 3 (2006): 179. http://dx.doi.org/10.1016/s0140-6701(06)81195-1.

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Reid, S. R., M. Aleyaasin, and B. Wang. "Out-of-Plane Pipe Whip for a Bent Cantilever Pipe: Comparison Between Experiment and FEM Models." Journal of Applied Mechanics 79, no. 1 (2011). http://dx.doi.org/10.1115/1.4004712.

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The three-dimensional, dynamic, elastic-plastic response of a right-angle bent cantilever pipe, with an initially uniform, circular cross section, subjected to out-of-plane loading is examined using finite element beam and shell models in ABAQUS. The large-deflection behavior involves both bending and torsional elastoplastic deformations of the pipe, phenomena which have not been previously studied in the context of the dynamic problem of pipe whip. Initially, neglecting ovalization and local collapse (kinking), the bent pipe is modeled as a beam, using spatial beam elements in ABAQUS. This en

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38

"A quadrantal circular beam subjected to radial impact in its own plane at its tip by a rigid mass." Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences 400, no. 1818 (1985): 19–36. http://dx.doi.org/10.1098/rspa.1985.0065.

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Prompted by relevance to pipe-whip problems, both complete and approximate rigid-plastic solutions are constructed for a circular curved beam subjected to radial impact in its own plane at its tip by a rigid mass. It is found that a plastic hinge travels from the tip towards the root or base, after which a rigid-body rotation occurs about it. For comparison, a mode approximation technique, bound theorems and an elastic-plastic solution that makes use of the finite element code ABAQUS are applied to the same problem, and a discussion is given concerning the value of the different methods.

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39

Mohammad, Roslina, Astuty Amrin, and Sallehuddin Muhamad. "THEORETICAL OF DYNAMIC LOADING AGAINST WATER-FILLED SIMPLY SUPPORTED PIPES." Jurnal Teknologi 75, no. 11 (2015). http://dx.doi.org/10.11113/jt.v75.5343.

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The primary aim of this study had been to investigate the effects of water-filled flow on the transient response of a simply supported pipe subjected to dynamically applied loading. The importance of this study is manifested in numerous applications, such as oil and gas transportations, where dynamic loading can be the result of an accident. The classical Bernoulli-Euler beam theory was adopted to describe the dynamic behavior of an elastic pipe and a new governing equation of a long pipe transporting gas or liquid was derived. This governing equation incorporated the effects of inertia, centr

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40

Zhang, Tao, Frederick W. Brust, Gery Wilkowski, Heqin Xu, Alfredo A. Betervide, and Oscar Mazzantini. "Leak-Before-Break Under Beyond Design Basis Seismic Loading." Journal of Pressure Vessel Technology 135, no. 5 (2013). http://dx.doi.org/10.1115/1.4024442.

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The Atucha II nuclear power plant is a unique pressurized heavy water reactor (PHWR) being constructed in Argentina. The original plant design was by Kraftwerk Union (KWU) in the 1970's using the German methodology of break preclusion. The plant construction was halted for several decades, but a recent need for power was the driver for restarting the construction. The United States Nuclear Regulatory Commission (US NRC) developed leak-before-break (LBB) procedures in standard review plan (SRP) 3.6.3 Revision 1 for the purpose of eliminating the need to design for dynamic effects that allowed t

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41

Crofoot, A. N. "Carbon credits - reliable cash flow?" Proceedings of the New Zealand Grassland Association, January 1, 2009, 85–88. http://dx.doi.org/10.33584/jnzg.2009.71.2776.

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On 27 March 2008, my wife Emily and I purchased a 737 ha property adjoining Castlepoint Station, called Mockingbird Farm. The property is typical of Wairarapa hill country ranging from small amounts of rolling hill to steep hills with about 407 ha of reverting scrub, 200 ha of average pasture and 130 ha of pine trees. This paper covers the decision process we went through in deciding to purchase the property. A key component of that decision was the ability to sell carbon credits from the pine trees to meet the carrying costs of the purchase. The paper also outlines the process we have been th

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42

Nedawei, Dakhel R., and Forqan Kh Al-Draji. "Study some of hydraulic parameters of border drip irrigation system and effect of some soil conditioners on soil properties and growth of Wheat )Triticum aestivum L.(." Muthanna Journal for Agricultural Sciences 8, no. 3 (2021). http://dx.doi.org/10.52113/mjas04/8.3/36o.

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"A field experiment was conducted in Maysan in the winter season 2017-2018 on silt clay soil to determine the hydraulic standards for border drip irrigation system depending on the lateral pipes Spacing and measurement site within network in effect of soil conditioners and level water irrigation on the saline distribution horizontal and vertical distribution .the experimental treatment of three lateral pipes Spacing at 30 cm (S1) , 45 cm (S2) and 60 cm (S3) whit three soil conditioners organic material, used oil and control , the conditioners were added based on the dry weight of the soil , an

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Alhussien, Mohammed Abdul, and Ahmed N. Abd. "Synthesis and characterization of pure and Au doped Fe3O4 using co-precipitation method." International journal of health sciences, August 23, 2022, 12537–45. http://dx.doi.org/10.53730/ijhs.v6ns4.12058.

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In this research, a sonochemical activation-assisted biosynthesis of Au/Fe3O4 nanoparticles is proposed. The proposed synthesis methodology incorporates the use of Piper auritum (an endemic plant) as reducing agent and in a complementary way, an ultrasonication process to promote the synthesis of the plasmonic/magnetic nanoparticles (Au/Fe3O4). The synergic effect of the green and sonochemical synthesis favors the well-dispersion of precursor salts and the subsequent growth of the Au/Fe3O4 nanoparticles. The hybrid green/sonochemical process generates an economical, ecological and simplified a

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Neilsen, Philip. "An extract from "The Internet of Love"." M/C Journal 5, no. 6 (2002). http://dx.doi.org/10.5204/mcj.2012.

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There are three stages in internet dating: first, the emailing back and forth; second, the phone conversation; and third, the meeting for 'coffee'. But before we discuss the three stages, here are some hints about the preliminary work you have to do. At the outset, you have to trawl through the thousands of people who have placed their profiles on the site. This is aided by limiting your search to a certain age spread, and your city or region. Then you can narrow it down further by checking educational background, whether they have kids, whether they write in New Age jargon, etc You have to tr

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