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Journal articles on the topic 'Strenth'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Ge, Wen Jun, Zhao Hua Li, and Qin Yun Lv. "Restoration Technology of 30CrMnSiA Steel Parts on Airplane by Electroless Ni-Plating." Advanced Materials Research 154-155 (October 2010): 1508–12. http://dx.doi.org/10.4028/www.scientific.net/amr.154-155.1508.

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The feasibility of electroless Ni-plating was explored in order to solve the problem of the restoration of the parts of aircraft made of high strenth steel. The flow and criterion of the restoration technology were were preliminarily investigated. We have measured the hardness, adhesion strength and antiwear performance of the coating. The results show that the electroless Ni-plating process for restoring the scuffed surface of aircraft parts made of high strenth steel has the advantages of simple procedure, easy operationg, and low cost. The coating is well adhered to the substrate and meets with the requirement for performance. In one word, the restoration technology of aircraft parts made of high strenth steel is good for extending.

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2

Wijaya, Ronni Andri, Yamasitha Yamasitha, Elfiswandi Elfiswandi, and Lusiana Lusiana. "Relative Strenght Index, Moving Average Convergence-Divergence on Stock Performance and Fundamental Analysis as Moderating." UPI YPTK Journal of Business and Economics 6, no. 2 (August 5, 2021): 27–30. http://dx.doi.org/10.35134/jbe.v6i2.40.

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This study aims to determine the effect of Relative Strength Index (RSI) and Moving Average Convergence-divergence (MACD) on stock performers with Debt to Equity Ratio (DER) as a Moderation variable in Financing companies listed on the Indonesian Stock Exchange (IDX). Sampling in the study using purpose sampling method obtained 14 companies with time series data. The analysis method used in this study is multiple linear regression analysis using eview. The results show that Relative Strenth Index (RSI) partially has a positive and significant effect on stock performance, Moving Average Convergence-divergence (MACD) partially has a positive and significant effect on stock performance, Relative Strenth Index (RSI) has a positive and significant effect on stock performance. which is moderated by Debt to Equity Ratio (DER), Moving Average Convergence-divergence (MACD) has a positive and significant effect on the Performance of Shares moderated by Debt to Equity Ratio (DER).

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3

Ma, Ming Lei, Gui Ling Wang, Dong Mei Miao, and Bao Yu Lian. "Strength Analysis of BFRP Rebar Based on Kolmogorov–Smirnov Test and ANOVA Method." Advanced Materials Research 598 (November 2012): 492–96. http://dx.doi.org/10.4028/www.scientific.net/amr.598.492.

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A very triditional and comprehensive understanding of the rebars’ static strength is that the strenth followes a normal distribution, no evidence or mathmatic test have adopted to prove that. This paper wants to bring a new idea to analyze the real true result to the former understanding. And finally a six more general distribution forms are used to give a provement which ignored in many strength analyis in China engineering community.During the provement, Fisher test and ANOVA method are studied carefully to suport the KS test.

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4

Zhang, Yong Cun, and Qing Ning Li. "Experimental Study and Performance Analysis of Concrete Shrinkage-Reducing Agents." Advanced Materials Research 311-313 (August 2011): 1879–83. http://dx.doi.org/10.4028/www.scientific.net/amr.311-313.1879.

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This paper will focus on developing a sort of concrete shrinkage-reducing agents that are generally some surfactants on the basis of some tests. By reference to the main chemical components of some domestic and foreign agents, the following chemicals are initially selecting : tert-butyl alcohol, triethanolamine and polyvinyl alcohol, and then some experiments about these substances were made, including liquid surface tension test, high-strength cement mortar shrinkage test, mortar strength test. Finally, the medicals that can significantly reduce drying shrinkage deformation but have little effect on the strenth of concrete blocks,are selected out as available concrete shrinkage-reducing agents.

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5

Khasanov, R. R., and I. I. Tolmacheva. "ENSURING THE STRENTH OF T-JOINT. STRENGTHENED CONNECTION PIPE." Petroleum Engineering 16, no. 2 (May 2018): 106. http://dx.doi.org/10.17122/ngdelo-2018-2-106-113.

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6

Xu, L., L. Chen, B. C. De Cooman, D. Steglich, and F. Barlat. "Hole expansion of advanced high strenth steel sheet sample." International Journal of Material Forming 3, S1 (April 2010): 247–50. http://dx.doi.org/10.1007/s12289-010-0753-9.

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7

SANEMATSU, Toshiaki, Satoru MOCHIDA, Shumpei TANAKA, and Tetsushi KANDA. "Strenth Properties of Fiber-Reinforced Soil Cement Composites with Ductility." Journal of the Society of Materials Science, Japan 53, no. 1 (2004): 17–20. http://dx.doi.org/10.2472/jsms.53.17.

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8

Marchant, J. N., and D. M. Broom. "Effects of dry sow housing conditions on muscle weight and bone strength." Animal Science 62, no. 1 (February 1996): 105–13. http://dx.doi.org/10.1017/s1357729800014387.

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AbstractConfinement has been shown to affect bone strenth in poultry but this weakness has not been documented in other species housed in confinement. The objectives of this experiment were to compare muscle weight and bone strength in non-pregnant sows, of similar age and parity, housed throughout eight or nine pregnancies in two different dry sow systems: (1) individually in stalls and (2) communally in a large group. Following slaughter, the left thoracic and pelvic limbs were dissected and 14 locomotor muscles removed and c. ???lied. A proportional muscle weight was then calculated by dividing individual muscle weight (g) by total body weight (kg). Where there were significant differences, stall-housed sows had lower absolute and proportional muscle weights than group-housed sows. The left humerus and femur were also removed. The bones were broken by a three-point bend test using an Instron Universal Tester. Both bones from stall-housed sows had breaking strengths that were about two-thirds those of group-housed sows. The results indicate that confinement of sows, with a consequent lack of exercise, results in reduction of muscle weight and considerable reduction of bone strength.

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9

Wei, Qi Hong, Chong Hai Wang, Hong Sheng Wang, Ling Li, Qiang Luan, Rong Liao, and Bo Dong. "Disposing of Silica Fiber’ Surface." Key Engineering Materials 512-515 (June 2012): 559–62. http://dx.doi.org/10.4028/www.scientific.net/kem.512-515.559.

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Silica fibers are widely used in superhigh velocity radome and antenna windows. The methods of eliminating the agents on the surface silica fibers were sdudied in this paper. SEM was engaged in studying the effects of silica fibers disposed by different methods,and the tensile strength of disposed silica fbers was compared with the originals. The results show that the heat treatment in the high temperature was a useful means to eliminate the agent on the surface of silica fiber, but there was great thermal damage for silica fibers,and the tensile strenth decreased significantly. The combination of volvent treatment and heat tratment could eliminate the agent on tht surface of silica fibers completely,and the tensile strength retained more, which was a good means to eliminate the agents on the surface of silica fiber.

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10

Fu, Ya Wei, Liang Cai Cai, and Yong Gen Wu. "Drying Shrinkage and Prediction Model of Alkali-Slag Concrete." Applied Mechanics and Materials 174-177 (May 2012): 18–23. http://dx.doi.org/10.4028/www.scientific.net/amm.174-177.18.

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Green high performance alkali-slag concrete(ASC) was prepared by adding Na2SiO3 and NaOH complex activator in slag. Physical, mechanical and drying shrinkage performance of ASC were studied by workability, strength and drying shrinkage tests. The results show that slump of ASC exceeds 160mm, fluidity and workability is excellent. 28d compressive strength and flexural trength of ASC are 90MPa and 8.36MPa, 7d strength are 83.7MPa and 7.47MPa, which belongs to high–early strenth. drying shrinkage of ASC are ratherish bigger than portland concrete(PC) anytime, but correspond to PC at later period from 28d, anyhow ASC belonged to low deformation concrete but with ratherish bigger early deformation, therefore early keep should be reinforced. drying shrinkage of ASC increase with dosage of slag anytime, but don’t increase with ratio of activator solution to slag linearly. And a suited logarithm prediction model of ASC was established, which can predict the drying shrinkage of ASC.

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11

Zhou, Jun Feng, Le Ping Xu, Dao Lun Feng, An Bang Hu, and Ting Fei Xie. "Study on Inactivation of Microalgae in Ship Ballast Water by Pulsed Electric Field and Heat Treatment." Advanced Materials Research 610-613 (December 2012): 3163–66. http://dx.doi.org/10.4028/www.scientific.net/amr.610-613.3163.

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Invasive aquatic species discharged through ship ballast water is one of the most serious problems posed nowadays in the marine environment. Inactivation effect on microalgae by combined PEF and engine waste heat pretreatment was studied. Effect factors such as pulsed peak voltage, pulsed frequency, electrode gap and heating temperature were explored, and its mechanism of inactivate the microalgae was analyzed. The results show that at the same experimental parameters, the inlet temperature of PEF treatment stage keeps at 24°C, the inactivation percentage is difficult to achieve 90% unless the electric field strength rises to 22 kV/cm. Once the PEF treatment sample is preheated to 48°C, the inactivation percentage will be up to 99% as the electric field strenth is just 10 kV/cm.

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12

Wu, Yong Gen, Liang Cai Cai, and Ya Wei Fu. "Durability of Green High Performance Alkali-Activated Slag Pavement Concrete." Applied Mechanics and Materials 99-100 (September 2011): 158–61. http://dx.doi.org/10.4028/www.scientific.net/amm.99-100.158.

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Green high performance alkali-activated slag pavement concrete(ASC) was prepared by adding Na2SiO3 and NaOH complex activator in slag. Physical, mechanical performance and durability of ASC were studied by workability, strength, hydrostatics and chlorin ion penetrability, fast freeze-thaw cycle tests and abrasion resistance tests. The results show that slump of ASC exceeds 160mm, fluidity and workability is excellent. 28d compressive and flexural trength of AAC are 91.9MPa and 8.5MPa, 7d compressive and flexural strength are 84.8MPa and 7.6MPa, which belongs to high–early strenth concrete. And its impermeability rank exceeds S40, chlorin ion impermeability is excellent, 6h eletricity is 1751～1894 coulomb, and its anti-frozen rank exceeds F300, which can meet the anti-frozen requirements in frore area. Depth of abrade slot is 0.45～0.96mm, abrasion resistance of ASC is 4.99, so its physical, mechanical performance and durability are superior to traditional portland concrete.

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13

Разиньков and Egor Razinkov. "Distinctive features in properties of particleboards of various thickness for kitchen table-tops." Forestry Engineering Journal 6, no. 3 (October 10, 2016): 118–27. http://dx.doi.org/10.12737/21688.

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The work showed that thin and thick particleboards differ very much in physical and me-chanical properties. Flexural strenth of the two types is slightly different, dimentional stability of thick particleboard is lower than that of thin particleboards. The water absorbtion of the thick particleboards is worse than that of thin particleboards. The edge integrity of thick particleboards is worse than that of thin ones.

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14

Correa-Sandoval, Alfonso, Ludivina Barrientos-Lozano, and Ned E. Strenth. "Una nueva especie del género Guillarmodia (Mollusca: Gastropoda: Pulmonata: Spiraxidae) del noreste de México." ACTA ZOOLÓGICA MEXICANA (N.S.) 33, no. 3 (January 18, 2018): 450–53. http://dx.doi.org/10.21829/azm.2017.3331145.

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Un nuevo caracol terrestre, Guillarmodia (Guillarmodia) marcelae n. sp. Correa-Sandoval, Barrientos -Lozano & Strenth es descrita para las montañas de la Sierra Los Soldados, región del estado de Tamaulipas en el noreste de México. Esta nueva especie difiere de otras especies regionales de Guillarmodia por su tamaño pequeño y distintivas estriaciones subsuturales. Se incluye información del hábitat de la especie y de la distribución geográfica de especies relacionadas

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15

Chakravarthy H.G, Nahushananda, and Farhan Idrees Ali. "EFFECT OF SILICA FUME ON PARTIAL REPLACEMENT OF CEMENT ON HIGH STRENTH CONCRETE." MATTER: International Journal of Science and Technology 1, no. 1 (January 1, 2015): 275–84. http://dx.doi.org/10.20319/mijst.2016.s11.275284.

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16

HAM, Tae Gew, Yukio NAKATA, Masayuki HYODO, Norimasa YOSHIMOTO, and Hidekazu MURATA. "INFLUENCE OF ANISOTROPY ON DEFORMATION AND STRENTH CHARACTERISTICS FOR COMPACTED DECOMPOSED GRANITE SOIL." Doboku Gakkai Ronbunshuu C 62, no. 2 (2006): 360–70. http://dx.doi.org/10.2208/jscejc.62.360.

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17

UH, E. S., J. R. PARK, H. SEOK, J. S. PARK, Y. M. NA, and J. H. MOON. "SHOULDER MOTION, LAXITY AND ISOKINETIC STRENTH IN KOREAN PROFESSIONAL AND COLLEGE BASEBALL PLAYERS." Medicine & Science in Sports & Exercise 31, Supplement (May 1999): S145. http://dx.doi.org/10.1097/00005768-199905001-00596.

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18

Liu, Hong Jun, Hu Wang, Min Sheng Zhang, and Xiu Hai Wang. "Experimental Study on Mechanism of Wave-Induced Silty Seabed Fluidization." Applied Mechanics and Materials 90-93 (September 2011): 2790–97. http://dx.doi.org/10.4028/www.scientific.net/amm.90-93.2790.

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Abstract. In this study, process of wave-induced silty seabed response was explored in a rectangle flume. Based on the experimental phenomena, the variations of pore water pressure and theory analysis, discussions were made on the mechanism of wave-induced silty seabed instability. Results indicated that seabed under wave nodes would experience fluidization and oscillation under wave actions, obvious pore pressure accumulation was observed at the same time. The mode of wave-induced silty seabed instability was fluidization. The mechanism of wave-induced silty seabed fluidization was a combination of excess pore water pressure and shear failure, the chief factor of fluidization could be ascribed to wave-induced cycling shear stress. The steady state strength was somewhat an expression of the level of wave-induced decrease of soil strenth that could finally reach, therefore, it could be used for the estimation of wave-induced fluidization of silty seabed.

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19

Ai, Chi, Wanchun Zhao, and Boyun Guo. "Casing-Collapse Strenth Reduction Under Lateral Loads From Yielding Shales in the Daqing Oilfield." SPE Drilling & Completion 23, no. 04 (December 1, 2008): 348–52. http://dx.doi.org/10.2118/104471-pa.

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20

Pinchuk, P. V., and I. A. Levandrovskaya. "The mechanical strenth characteristics of the biological tissues: the current state-of-the-art." Sudebno-meditsinskaya ekspertiza 60, no. 5 (2017): 49. http://dx.doi.org/10.17116/sudmed201760549-52.

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21

Lüchtenberg, Dietmar, and Hartmut Riehle. "The effect of 12week specific strenth training on speed parameters in middle-distance-running." Journal of Biomechanics 26, no. 3 (March 1993): 315. http://dx.doi.org/10.1016/0021-9290(93)90458-q.

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22

Dharmautama, Moh, Edy Machmud, and Asmah Fahmi Rasyid. "Pengaruh pemilihan gigi penyangga terhadap desain cengkeram rangka logam Effect of abutment selection to the clasp design of metal frame." Journal of Dentomaxillofacial Science 11, no. 2 (June 30, 2012): 84. http://dx.doi.org/10.15562/jdmfs.v11i2.301.

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Advantages of metal framework partial denture than conventional denture base include power and can be made asthin as possible. But the success is influenced by clasp design. Many things to be considered in positioning theclasp, therefore knowledge of the diagnosis, indications, contraindications, and biomechanical properties of themetal that used to be important in the treatment. This study aimed to determine the retentive strength of akers andback action for the abutment first molar and first premolar and the upper and lower clasp design is mostappropriate for the abutment. Research using 8 samples I (gypsum base with natural teeth) and 8 samples II(gypsum base metal crown) maxillary and mandibulary first premolar and first molar with a depth of 0.25 mmundercut. Sample II soaked in artificial saliva, surveyed and was prepared for a rest seat. Akers and back actionclasp were inserted on a metal crown and measured their retentive strength with Instron UTM. The results obtainedindicate the highest retentive strength metal abutment crown molar and premolar with Akers compared to backaction. Highest retentive strength on metal molar abutment crowns with the Akers and upper premolars with metalcrowns back action. There are significant differences between the groups retentive strenth of clasp design. It wasconcluded that best retentive force on the upper molars with akers and upper premolars with Akers.

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23

Solovyova, M. E., and F. Sh Khafizov. "Analysis of the influence of fire-retardant coating on strenth properties of wooden building constructions." Oil and Gas Business, no. 1 (February 2014): 490–502. http://dx.doi.org/10.17122/ogbus-2014-1-490-502.

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24

HU, J. C., and Y. ZHOU. "Flow structure behind two staggered circular cylinders. Part 2. Heat and momentum transport." Journal of Fluid Mechanics 607 (June 30, 2008): 81–107. http://dx.doi.org/10.1017/s002211200800181x.

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This work aims to study flow structures, heat and momentum transport in the wake of two staggered circular cylinders. In order to characterize heat transport in the flow, both cylinders were slightly heated so that heat generated could be treated as a passive scalar. The velocity and temperature fluctuations were simultaneously measured by traversing a three-wire (one cross-wire plus one cold wire) probe across the wake, along with a fixed cross-wire, which acted to provide a reference signal. Four distinct flow structures, i.e. two single-street modes (S-I and S-II) and two twin-street modes (T-I and T-II), are identified based on the phase-averaged vorticity contours, sectional streamlines, and their entrainment characteristics. Mode S-I is characterized by a vortex street approximately antisymmetric about the centreline. This mode is further divided into S-Ia and S-Ib, which differ greatly in the strength of vortices. The vortex street of Mode S-II is significantly asymmetric about the centreline, the strenth of vortices near the downstream cylinder exceeding by 50% that on the other side. Mode T-I consists of two alternately arranged vortex streets; the downstream-cylinder-generated street is significantly stronger than that generated by the upstream cylinder. In contrast, Mode T-II displays two streets approximately antisymmetrical about the wake centreline. Free-stream fluid is almost equally entrained from either side into the wake in Modes S-Ia and T-II, but largely entrained from the downstream cylinder side in Modes S-II and T-I. The entrainment motion in Mode S-Ib is very weak owing to the very weak vortex strength. Vortices decay considerably more rapidly in the twin-street modes, under vigorous interactions between the streets, than in the single-street modes. This rapid decay is particularly evident for the inner vortices near the wake centreline in Modes T-II and T-I. Other than flow structures, heat and momentum transport characteristics are examined in detail. Their possible connection to the initial conditions is also discussed.

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25

Ren, Ke Gang, Ke Xin Chen, He Ping Zhou, Hai Bo Jin, Ji Dong Zhong, and Xiao Shan Ning. "Properties of Mechanical Activation Combustion Synthesied High α-Content Silicon Nitride Powders and Sintered Bulk Ceramics after Iteration Reactions." Key Engineering Materials 368-372 (February 2008): 862–64. http://dx.doi.org/10.4028/www.scientific.net/kem.368-372.862.

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Effect of iteration times on mechanically-activated combustion synthesis of high α-content Si3N4 powders was investigated. Properties of the as-synthesized powders such as α-content (Cα) as well as specific surface area (As) were examined. Results showed that both of Cα and As became higher after iteration reactions. The mechanical properties of the sintered bulk ceramics from as-synthesized powders were also tested to reveal the sinterability of the powders. Results showed that relative density of all the sintered bulk ceramics were higher than 97%. Furthermore, fracture toughness had a trend of becoming higher, which reached a value of 10.2 MPam0.5. Correspondingly, bending strenth became a bit lower.

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26

Suroto, Suroto. "PEMANFAATAN ROTAN NON KOMERSIAL SEBAGAI BAHAN BAKU MEBEL DITINJAU DARI SIFAT FISIS DAN MEKANIS." Jurnal Riset Industri Hasil Hutan 3, no. 1 (June 1, 2011): 1. http://dx.doi.org/10.24111/jrihh.v3i1.1181.

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Rattan in good quality is curently difficult to obtain and it price is quite expensive. So, it is needed to utilize non commercial rattan as substitute material. By identification of basic characteristics , such as phisical, mechanical, chemical and anatomy structure, every species of non commercial rattan can be used appropriately. The objectives of this research is to optimize utilization non commercial rattan as subtitute material and develop rattan manufacturing industry especially by identivication of the physical and mechanical characteristics. Five (5) rattan species studied here are marau (Calamus mettanensis Becc), toho (Calamus spp), galang (Daemonorops verticilaris Griff Mart), hijau (Calamus spp. and simpurut (Calamus panajuga Becc) whic derived from central Kalimantan. The research result based on physical characteristic rang for diameter is between 6,2 – 27,2 mm, inter-segment length 10 – 28 cm, moisture content 12,50 – 16,48 % and density 1,03 – 1,61 gr/cm3. While mechanical characteristics range for modulus of elasticity is between 364,03 – 1934,29 kg/cm2, compression strenth 127,55 – 441,04 kg/cm2 and tensile strength 197,34 – 394,20 kg/cm2. Those rattan species can be optimized as craft industry raw material especialy for furniture and rattan matting.Keywords: rattans, physical, mechanical, craft.

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27

Rosch, Paul J. "From Stress to strenth. R. S. Eliot. Bantam, New York, 1994. No of pages: 267. Price: $ 22.95." Stress Medicine 11, no. 1 (January 1995): 139–40. http://dx.doi.org/10.1002/smi.2460110123.

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28

Liang, Xing Hua, Lin Shi, Yu Si Liu, and Xiao Ming Hua. "The Aluminum Brazing Pieces of Mechanical Performance Based on GRNN Neural Network." Applied Mechanics and Materials 455 (November 2013): 154–58. http://dx.doi.org/10.4028/www.scientific.net/amm.455.154.

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Aluminum and aluminum alloy were widely used in various industrial fields,the key to application is the reliable welding. In this thesis,LF21 aluminum alloy brazing materials were designed and prepared by Orthogonal experiment,and mechanical properties of the brazing specimen was tested. Based on the GRNN(Generalized Regression Neural Network),Nonlinear relationship modle of brazing material preparation parameters and mechanical properties of the weldment was established.The results show that the model has better stability.When smooth factor value is 0.1,the network approximation error and prediction error absolute value is 0.01%.It can be realized that an nonliner mapping between the aluminum alloy brazing preparation parameters and solder joint tensil strenth based on the Orthogonal test and can do better prediction of the weld mechanical properties,according to brazing material preparation parameters.

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29

Mykhalevskiy, Dmytro. "Development of a spatial method for the estimation of signal strenth at the input of the 802.11 standard receiver." Eastern-European Journal of Enterprise Technologies 4, no. 9 (88) (August 30, 2017): 29–36. http://dx.doi.org/10.15587/1729-4061.2017.106925.

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Abreu, Celina Wanderley de, Gilberto Duarte Filho, Alberto Noriyuki Kojima, Renato Morales Jóias, and Alfredo Mikail Melo Mesquita. "Evaluation of crosshead speed influence on shear bond strength test." Brazilian Dental Science 17, no. 3 (August 25, 2014): 50. http://dx.doi.org/10.14295/bds.2014.v17i3.1003.

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<p><span style="font-size: medium;">The objective of this study was to evaluate the influence of different speeds using the piston device in the shear bond strength. 48 cylinders of composed resin had been confectioned (Solidex),and were divided randomly in four groups (n=12).</span><span style="font-size: medium;"> </span><span style="font-size: medium;">The specimens were adapted to the device for the</span><span style="font-size: medium;"> </span><span style="font-size: medium;">shear bond strenth test and were taken to an universal testing machine with a load cell of 1000Kg. The test were carried through with four different speeds: group A: 0,5; group B: 1,0; group C: 1,5 and group D: 2,0mm/min. The mean and standard deviations, in Kgf, were: A - 66,31(10,24); B - 64,53 (20,40); C - 75,23 (11,84) and D - 66,62 (13,81). The data were submitted to ANOVA (p=0,13). The results indicated that it did not have statistical significant difference between the groups</span><span style="font-size: medium;"> </span><span style="font-size: medium;">A, B, C and D concluding that the speed in this type of test, with this device, can be varied without modify results.</span></p>

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Zenkin, R. N., N. N. Zenkin, and A. I. Val’ter. "THE DEVELOPMENT OF A TEST LAND STAND FOR ARTILLERY MOUNTS AK-203 AND AK-203M OF HIGH-STRENTH CAST IRON." Izvestiya Visshikh Uchebnykh Zavedenii. Chernaya Metallurgiya = Izvestiya. Ferrous Metallurgy 58, no. 7 (October 3, 2015): 491. http://dx.doi.org/10.17073/0368-0797-2015-7-491-495.

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32

Short, John W., Christopher L. Humphrey, and Timothy J. Page. "Systematic revision and reappraisal of the Kakaducarididae Bruce (Crustacea : Decapoda : Caridea) with the description of three new species of Leptopalaemon Bruce & Short." Invertebrate Systematics 27, no. 1 (2013): 87. http://dx.doi.org/10.1071/is12016.

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The freshwater shrimp family Kakaducarididae Bruce, 1993 is revised and its familial status reappraised using morphological characters and the results of a complementary molecular study (Page et al. 2008). Based on combined morphological–molecular data, the Kakaducarididae is synonymised with the Palaemonidae Rafinesque, 1815 and the monotypic genus Kakaducaris Bruce, 1993 is synonymised with Leptopalaemon Bruce & Short, 1993. The Texan cave shrimp, Calathaemon holthuisi (Strenth, 1976), provisionally included in the Kakaducarididae by Bruce (1993), is re-assigned back to the Palaemonidae. Leptopalaemon is re-diagnosed and three new species, L. gibbosus, sp. nov., L. gudjangah, sp. nov. and L. magelensis, sp. nov., are described from the north-western edge of the Arnhem Land plateau/escarpment complex, Northern Territory, Australia. The two previously described species, L. gagadjui Bruce & Short, 1993 and L. glabrus (Bruce, 1993), comb. nov. are re-diagnosed. A key to the five presently recognised Leptopalaemon species is provided.

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Karatzanos, L., A. Karaseridis, V. Georgiopoulou, D. Sakellariou, F. Katsaros, E. Tsagalou, and S. Nanas. "Exercise training in patients with chronic heart failure???effects of two different regimes on the maximum strenth of the quadriceps femoris." European Journal of Cardiovascular Prevention & Rehabilitation 13, Supplement 1 (May 2006): S91—S92. http://dx.doi.org/10.1097/00149831-200605001-00369.

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Huo, Chun Qing, Hong Juan Gu, Zai Qian Yu, and Long Zhang. "Preparation and Properties of Organo-Montmorillonite Modified R-122 Nanocomposite." Advanced Materials Research 602-604 (December 2012): 254–58. http://dx.doi.org/10.4028/www.scientific.net/amr.602-604.254.

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An OMMT (organic montmorillonite) was prepared by ion exchanging between Na-montmorillonite and cetyl trimethyl ammonium bromide (CTAB) and was applied to modify Dicyclopentadiene Dioxide Epoxy(R-122). FT-IR spectra showed that the organic molecules had intercalated into the layers of MMT successfully, X-ray diffraction illustrated that the spacing of layers of MMT increased from 1.43 nm to 3.85 nm. R-122 composite was prepared with this nano-organic montmorillonite. When the content of OMMT was 4.0% (wt%), the impact strenth of the composite reached to the highest(21.2 J/m), which is 92.7% higher than the pure R-122 . Morphology of the fracture checked by SEM, reveals a depth depended distribution which generated more new surface, thus can absorb more impact energy. Differential scanning calorimetry(DSC) showed that the thermal stability of the composite had improved compared with the pure resin. And what’s more, the improvement of toughness doesn’t hurt the resin’s heat resistance, it may provid a new way to prepare high performance R-122 composites.

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Xiao, Wen Sheng, Xiu Juan Lin, and Hong Yan Wang. "Mechanical Stability Analysis of Subsea Wellhead for Deepwater Production to Earthquake Load." Applied Mechanics and Materials 44-47 (December 2010): 1061–65. http://dx.doi.org/10.4028/www.scientific.net/amm.44-47.1061.

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Subsea wellhead for deepwater production subjects to axial force, lateral force and bending moment under the seismic loading, the effect of subsea christmas tree and casing string’s gravity. Joint action of these forces makes it is possible that horizontal displacement exceeds the limitation and thus loses the stability. A mechanical analytical model of subsea wellhead for deepwater production is established on the basis of the pile foundation theories and material mechanics, the seismic load and behavior between casing string and formation are considered. The analyses on lateral displacement, angular distortion, bending moment and shear force show that the affection of lateral load is focus on the upper section of casing string, and the lateral displacement of subsea wellhead for deepwater production increases along with earthquake load and thus decreases stability. The stability improves notably with the increase of coefficient of soil reaction. Therefore it is necessary to obtain the on-the-spot geological data in shallow formation. The wellhead stability may be improved to different degrees by taking measures such as minimizing axial load, enhancing the conductor bending strenth, increasing the depth of the casing string in soil, reducing the outcropping length of the casing string.

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Choi, Sung-Oong. "Estimation of Rock Strengths Using Block Punch Strength Index Test." Journal of the Korean Society of Mineral and Energy Resources Engineers 50, no. 1 (2013): 88. http://dx.doi.org/10.12972/ksmer.2013.50.1.088.

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Vukojevic, Zoran, Tatjana Pekmezovic, Ana Nikolic, Stojan Peric, Ivana Basta, Ivan Marjanovic, and Dragana Lavrnic. "Correlation of clinical and neurophysiological findings with health related quality of life in patients with diabetic polyneuropathy." Vojnosanitetski pregled 71, no. 9 (2014): 833–38. http://dx.doi.org/10.2298/vsp120919015v.

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Background/Aim. Diabetic polyneuropathy is defined as the presence of clinical or subclinical symptoms and/or signs of peripheral nerve damage in patients with diabetes mellitus in the absence of the other causes of peripheral neuropathy. The aim of this study was to assess healthrelated quality of life (HRQoL) in patients with diabetic polyneuropathy and its correlation with clinical and neurophysiological findings. Methods. This study comprised 60 patients with distal, symmetric, sensorimotor diabetic polyneuropathy and type 2 diabetes mellitus. For evaluation of clinical findings the following scales were used: Medical Research Council strenth score (MRC sum score), Inflammatory Neuropathy Cause and Treatment (INCAT) disability scale (arm disability and leg disability scales), INCAT sensory sum score, Hamilton depression and anxiety rating scales. Nerve conduction study (NCS) was performed on the motor part of the median and peroneal nerves, the sensory part of the median nerve and sural nerve. All the patients completed the Serbian version of the SF-36 questionnaire as a measure of HRQoL. Results. Our results showed mild to moderate QoL impairment in the patients with diabetic polyneuropathy with no difference in physical and mental composite scores (p > 0.05). The age of the patients, mean MRC sum score, arm disability scale score, leg disability scale score and mean INCAT sensory sum score correlated with scores in the SF-36 questionnaire (p < 0.01). The patients with higher scores of anxiety and depression had significantly worse health perception for all QoL domains, for both composite scores and for the total SF-36 score (p < 0.01). Both motor and sensory NCS parameters of the median nerve showed significant correlations with QoL scores (p < 0.05). Conclusion. Our results showed mild to moderate QoL impairment in the patients with diabetic polyneuropathy. HRQoL significantly correlated with the age of the patients, muscle strength, disability, sensory complaints, depressiveness and anxiety of the patients. Electrophysiological examination of median nerve significantly correlated with QoL in the patients with diabetic polyneuropathy.

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Bruce, A. J., and J. W. Short. "Leptopalaemon gagadjui gen. nov., sp. nov., a new freshwater palaemonid shrimp from Arnhem land, and a re-evaluation of Palaemonetes holthuisi Strenth, with the designation of a new genus, Calathaemon." Hydrobiologia 257, no. 2 (April 1993): 73–94. http://dx.doi.org/10.1007/bf00005948.

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Shao, Xiao Rong. "Experiments for Strength Properties of Polypropylene Fiber-Reinforced Concrete." Advanced Materials Research 194-196 (February 2011): 1030–34. http://dx.doi.org/10.4028/www.scientific.net/amr.194-196.1030.

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This paper made experimental research on the compressive strength, axis compressive strength and splitting tension strength of polypropylene fiber-reinforced concretes at a fiber content of 0.9Kg/m3 in different ages which showed that: in the experiment of compressive strength, the strengths of C20 polypropylene fiber concretes in the ages was lower; the strength of C30 polypropylene fiber concretes in the age of 7 days was lower, the strengths in the ages of 14 days and 28 days were basically equal to; the strength of C40 polypropylene fiber concretes in the age of 7 days was basically equal to and in 28 days was higher than the strengths of ordinary concretes. In the experiment of axis compressive strength, the strengths of C20 polypropylene fiber concretes in the ages were lower; the strengths of C30 polypropylene fiber concretes in the age of 7 days and 14 days were lower and in the age of 28 days was basically equal to; the strengths of C40 polypropylene fiber concretes in the ages were basically equal to the strengths of ordinary concretes. In the experiment of splitting tension strength, the strengths of C20 and C30 polypropylene fiber concretes were lower; the strength of C40 polypropylene fiber concretes in the age of 28 days was basically equal to the strengths of ordinary concretes. Conclusion: the relationships between the strength of fiber concretes and ordinary concretes are correlated to the strength grades of concretes, namely, When the strength degrade of concretes is low, the strength of polypropylene fiber concretes is lower, but the strength reaches closer to or exceeds the strength of ordinary concretes along with the increase of the strength grade of concretes.

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Voigt, Andrea, and Christiane Scheffler. "Manual Abilities of the Elderly - Handgrip Strength, Finger and Thumb Push Strength and Opening Strength in Age Comparison." Anthropologischer Anzeiger 68, no. 2 (March 1, 2011): 167–73. http://dx.doi.org/10.1127/0003-5548/2011/0090.

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Lee, Swoo-Heon, Kyung-Jae Shin, So-Yeong Kim, and Hee-Du Lee. "Numerical Study on the Deformation Behavior of Longitudinal Plate-to-High-Strength Circular Hollow-Section X-Joints under Axial Load." Applied Sciences 9, no. 19 (September 24, 2019): 3999. http://dx.doi.org/10.3390/app9193999.

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This study aims to investigate the joint strength of longitudinal plate-to-high-strength steel circular hollow-section X-type joints under plate axial load. The material properties of high-strength steel with nominal yield strengths of 460, 650, 900, and 1100 MPa were used for parametric analysis. The variables for analysis were ratios of chord diameter to thickness, plate width to chord diameter, and utilization. To determine the capacity of connections, the joint strengths using a deformation limit and a strength limit were considered and compared with American Institute of Steel Construction (AISC), Eurocode 3, and ISO 14346. The joint strength determined by the ultimate deformation limit is approximately equal to the joint strength determined by the strength limit state at the yield strength of 460 MPa. The difference between both the joint strengths, however, becomes higher with increasing yield strength. The design equations estimate the joint strength based on the ultimate deformation limit approximately until the limitation of the nominal yield strength in each design code. As the nominal yield strength increases, the joint strengths are overestimated. In using high-strength steel in circular hollow-section X-type joints, the reduction factors of 0.75 and 0.62 for AISC and ISO 14346 are suggested for the nominal yield strengths of 900 and 1100 MPa, respectively. In Eurocode 3, the reduction factor of 0.67 is also suggested for a yield strength of 1100 MPa.

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Effendi, Zulham, Taufik Saidi, and Teuku Budi Aulia. "STUDI KOMPARASI VARIASI JENIS SUPERPLASTICIZER TERHADAP SIFAT MEKANIS BETON MUTU TINGGI DENGAN MENGGUNAKAN FLY ASH ABU CANGKANG KELAPA SAWIT SEBAGAI ADITIF." Jurnal Arsip Rekayasa Sipil dan Perencanaan 1, no. 3 (September 11, 2018): 158–70. http://dx.doi.org/10.24815/jarsp.v1i3.11781.

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Nowadays, a construction uses a lot of concrete with highly strong power that is needed to support materials supporting the construction. With the improvement of concrete technology nowadays it is possible that high quality concrete with the suppression of 70 MPa. Aceh Province, which is located, at the most tip of Sumatera Island has a great number of natural resources and materials that can be used in order to make concrete. These available resources are used for making high quality concrete with the pressure of 70 MPa. This research is going to explore the characteristic of concrete mechanic comprises of the strength of its pressure, the strength of its tight pressure, the bow strength and the sliding strength that can be reached by using additional material of palm nutshell as an additife replacement as apart of concrete use and the variation of the variety of superplasticizer optimum percentage of Sikament LN, Sikament NN and Viscocrete-10 by rude aggregation with maximum measure is12 mm. its concrete is used as Portland concrete type I with vary kinds of superplasticizer by each maximum percentage of Sikament LN is 1%, Sikament NN 1,5% and Viscocrete-10 1,5 % . the factor of water concrete is 0,3 and the amount of palm nutshell dust as an aditif that is used is 10%. The value of pressure and tight breaking strenght, flexibility tight strengh and sliding strenght from third variaties of superplasticizer, namely Viscocrete-10 with the percentage is 1,5% having bigger valuecompred to Sikament NN 1,5% and Sikament LN 1,0%. In terms of testing hot hydration the result shows that the viscocrete – 10 has been able earlier to prevent hot hydration with value is 6 hour; 24oC compared to Sikament NN 8 hour; 240C and the kind of Sikament LN 78 hour; 250C.

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Menon, Krishna K., and Andris Freivalds. "Repeatability of Dynamic Strength Tests." Proceedings of the Human Factors Society Annual Meeting 29, no. 5 (October 1985): 517–20. http://dx.doi.org/10.1177/154193128502900525.

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The repeatability of dynamic strength tests was examined by calculating coefficients of variations (CV) for the forces exerted on lifting tests using the legs, torso and arms. Static strengths were also measured and compared to dynamic strengths. The CV for dynamic strengths, was in fact slightly lower than for static strengths, 9.79% vs. 10.6%. The correlations between the two types of strength measurements were large (r=.8l) and significant, indicating that along with good repeatability dynamic tests are an acceptable form of employee strength measurement.

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Saeed, Jalal Ahmad, and Abbas Mohammed Abubaker. "Shear Strength and Behavior of High Strength Reinforced Concrete Beams without Stirrups." Sulaimani Journal for Engineering Sciences 3, no. 3 (April 1, 2016): 64–75. http://dx.doi.org/10.17656/sjes.10037.

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Saeed, S. A., and S. R. Sarhat. "Strength of fiber reinforced high-strength concrete with stirrups under direct shear." Journal of Zankoy Sulaimani - Part A 2, no. 2 (September 1, 1999): 64–73. http://dx.doi.org/10.17656/jzs.10040.

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Selverian, J. H., D. A. O’Neil, and S. Kang. "Performance Testing and Strength Prediction of Ceramic-to-Metal Joints." Journal of Engineering for Gas Turbines and Power 116, no. 3 (July 1, 1994): 622–28. http://dx.doi.org/10.1115/1.2906865.

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Brazed joints were made between silicon nitride and Ni-based and Fe-based super alloys. Room temperature shear (torsion) strengths ranged from 75-242 MPa for Si3N4-to-Incoloy 909 joints and from 30-127 MPa for the Si3N4-to-Inconel 718 joints. At 500°C the joint strength was 120 MPa while at 650°C and 950°C the joint strengths were less than 20 MPa. These low strengths at 650°C and 950°C were attributed to a reduction in the shrink-fit and to low braze strength at these high temperatures. Finite element analysis (FEA) and a probabilistic failure theory (CARES) were used to predict the joint strengths. The predicted joint strengths agreed well with measured joint strengths in torsional loading at 20°C. Torsion tests were also performed at 650°C. Aspects of the material systems, residual stresses, mechanical behavior, and strength predictions and presented. Two new braze alloys based on the Au-Ni-Cr-Fe system were used to overcome the poor high-temperature strength. Joints made with these brazes had good strength (85 MPa and 35 N-m) at 650°C.

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Mohammed, Ahmed, and Wael Mahmood. "Statistical Variations and New Correlation Models to Predict the Mechanical Behavior and Ultimate Shear Strength of Gypsum Rock." Open Engineering 8, no. 1 (August 11, 2018): 213–26. http://dx.doi.org/10.1515/eng-2018-0026.

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Abstract In this study, over 1000 data from the several research studies was used to characterize and compare the density, strengths, modulus, flexural strength, porosity and the ultimate shear strengths of the calcium rocks. The gypsum rock data were statistically analyzed, quantified and compared with the limestone rock data. The ranges of the densities for gypsum rock (CaSO4·2H2O) and limestone rock (CaCO3) were 2.10 to 2.83 gm/cm3 and 1.70 to 2.75 gm/cm3, respectively. The compressive and tensile strengths of the gypsum and limestone rocks varied from 2 MPa to 250 MPa and 1.8 MPa to 25 MPa, respectively. Vipulanandan correlation model was effective in relating the modulus of elasticity, flexural strength, with the relevant strengths of the rocks. A new nonlinear Vipulanandan failure criterion was developed to better quantify the tensile strength, pure shear (cohesion) strength and predict the maximum shear strength limit with applied normal stress on the gypsum and limestone rocks. The prediction of the failure models for the two rock types was also compared to the Mohr-Coulomb failure model. The Vipulanandan failure model predicted the maximum shear strength limit was, as the Mohr-Coulomb failure model does not have a limit on the maximum shear strength. With the Vipulanandan failure model based on the available data, the maximum shear strengths predicted for the gypsum and limestone rocks were 64 MPa and 114 MPa, respectively.

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PATEL, SUNNY, and Prof H. K. DAVE Prof. H.K.DAVE. "Estimating the Revenue Due to on Street Paid Parking Program on Busy Urban Streets - A Case Study of Surat City." Paripex - Indian Journal Of Research 3, no. 5 (January 15, 2012): 1–3. http://dx.doi.org/10.15373/22501991/may2014/83.

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49

Huang, Guoping, Hui Wang, and Feiting Shi. "Coupling Effect of Salt Freeze-Thaw Cycles and Carbonation on the Mechanical Performance of Quick Hardening Sulphoaluminate Cement-Based Reactive Powder Concrete with Basalt Fibers." Coatings 11, no. 9 (September 20, 2021): 1142. http://dx.doi.org/10.3390/coatings11091142.

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The effect of salt freeze-thaw cycles coupled with carbonation on the mechanical performance of quick hardening sulphoaluminate cement-based reactive powder concrete combined with basalt fibers was investigated. The ratios of basalt fibers in sulphoaluminate cement-based reactive powder concrete (SAC-RPC) were 1%, 2%, 3% and 4% by the volume of concrete. The mechanical strengths (compressive strength, flexural strength and bonding strength) of SAC-RPC were investigated after curing for 5 h, 1 d, 14 d and 28 d, respectively. Meanwhile, the mechanical strengths of resultant concrete were detected, when different NaCl freeze-thaw cycles and carbonation were adopted. Results showed that the addition of basalt fibers could effectively improve the mechanical strengths, especially the flexural strength of SAC-RPC. The dosage of 3.0% was the threshold value affected mechanical strengths. The flexural, compressive and bonding strengths of SAC-RPC were higher than 8.53 MPa, 34 MPa and 3.21 MPa, respectively. The mass loss and mechanical strengths loss of SAC-RPC increased in the form of quadratic function with the increasing number of NaCl freeze-thaw cycles and varied in the form of quadratic decreasing function. Meanwhile, the effect of carbonation on the mechanical strengths of SAC-RPC can be ignored. Additionally, the coupling effect of salt freeze-thaw cycles and carbonation could accelerate the attenuation of concrete strength. The mechanical strengths loss demonstrated a decreased quadratic function with the increasing volume of basalt fibers.

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Hong, Xinghua, Hui Wang, and Feiting Shi. "Influence of NaCl Freeze Thaw Cycles and Cyclic Loading on the Mechanical Performance and Permeability of Sulphoaluminate Cement Reactive Powder Concrete." Coatings 10, no. 12 (December 16, 2020): 1227. http://dx.doi.org/10.3390/coatings10121227.

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This paper aimed to investigate the coupling effects of NaCl freeze–thaw cycles and cyclic loading on the mechanical performance and permeability of sulphoaluminate cement reactive powder concrete (RPC). Firstly, the compressive and flexural strengths of sulphoaluminate cement RPC were investigated. Then, the chloride ion permeability, mechanical strengths (compressive and flexural strengths) and mass loss were determined. Results indicated that the increased steel fibers content and curing age played positive roles in the mechanical strengths. The threshold values of steel fibers and curing age were 3.0% and 14 days. Sulphoaluminate cement RPC with early curing age (5 h) showed relatively high mechanical strengths: flexural strength (8.69~17.51 MPa), and compressive strength (34.1~38.5 MPa). The mass loss, the chloride migration coefficient, and the compressive strength loss increased linearly with NaCl freeze–thaw cycles. Meanwhile, the flexural strength loss increased with the exponential function. The relative dynamic modulus of elasticity of specimens decreased linearly with the increased freeze–thaw cycles. Finally, it was observed from this paper, cyclic loading demonstrated negative roles on the mechanical strengths and resistance to chloride penetration.

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