Log in

Relevant bibliographies by topics / Wall thickness change / Journal articles

To see the other types of publications on this topic, follow the link: Wall thickness change.

Journal articles on the topic 'Wall thickness change'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Wall thickness change.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Guo, Fangmin, Yanbao Guo, Xiangguang Kong, Zhiwei Xiong, and Shijie Hao. "The Effect of Wall Thickness and Scanning Speed on the Martensitic Transformation and Tensile Properties of Selective Laser Melted NiTi Thin-Wall Structures." Metals 12, no. 3 (2022): 519. http://dx.doi.org/10.3390/met12030519.

Full text

Abstract:

In this study, we analyzed the coupling effect of laser scanning speed and wall thickness on the phase transformation behavior and tensile properties of selective laser melted NiTi thin-wall structures. It is demonstrated that either scanning speed or wall thickness has their respective influence rule, whereas this influence could be changed when coupling them together; that is, under different scanning speeds, the effect of wall thickness could be different. It is found that the deviation of phase transformation temperature among different wall thicknesses is ~3.7 °C at 400 mm/s, while this d

APA, Harvard, Vancouver, ISO, and other styles

2

Peng, Song Yi. "Numerical Simulation Study of Wall Thickness Change Rule of Single Point Progressive Molding of Al5083." Journal of Engineering Research and Reports 26, no. 8 (2024): 258–68. http://dx.doi.org/10.9734/jerr/2024/v26i81243.

Full text

Abstract:

With the development and progress of science and technology, the application of single-point progressive molding is more and more extensive, but single-point progressive molding still exists the problem of excessive thinning of wall thickness of molded parts, which seriously affects the quality of molded parts. The article takes Al5083 plate forming cone as the research object, uses Abaqus finite element simulation software, according to the principle of single variable, respectively explores the influence of process parameters such as tool head diameter, layer spacing, feed rate and residual

APA, Harvard, Vancouver, ISO, and other styles

3

Liu, Yang, Marius Herrmann, Christian Schenck, and Bernd Kuhfuss. "Axial and Radial Material Flow Analysis in Infeed Rotary Swaging of Tubes." MATEC Web of Conferences 190 (2018): 04003. http://dx.doi.org/10.1051/matecconf/201819004003.

Full text

Abstract:

In rotary swaging – an incremental cold forming production technique to reduce the diameter of axisymmetric parts – the material flow can be assumed to be predominantly axial and radial. The actual ratio of this axial and radial flow influences the mechanical properties and especially in tube forming the final geometry. It is known that during mandrel free infeed rotary swaging of tubes the wall thickness changes. The change is depending on the process parameters like incremental and cumulated strain. Hence, the ratio of axial and radial material flow changes. Consequently, the analysis of the

APA, Harvard, Vancouver, ISO, and other styles

4

Wang, Liang, Jun Feng Shi, and Tian Qing Yu. "Influence of Wall Thickness and Concrete Grade of Shear Wall Amount." Advanced Materials Research 1065-1069 (December 2014): 1074–78. http://dx.doi.org/10.4028/www.scientific.net/amr.1065-1069.1074.

Full text

Abstract:

Engineering examples and finite element structural analysis software SATWE was used to calculate by adjusting the shear wall thickness and grade to study the dynamic characteristics of concrete structures; analysis of seismic shear, natural vibration cycles, maximum interlayer displacement angle, lateral displacement stiffness to weight ratio and shear weight ratio of these parameters change rules, resulting in changes in shear wall thickness greater impact on shear wall amount.

APA, Harvard, Vancouver, ISO, and other styles

5

Sonwane, Amit Chandrashekhar. "Effect of Shear Walls on Seismic Behaviour in Multistory Building by Varying the Shear Wall Size and Location." International Journal for Research in Applied Science and Engineering Technology 13, no. 7 (2025): 467–73. https://doi.org/10.22214/ijraset.2025.73009.

Full text

Abstract:

This paper is study about how multi story structure get affects the story shear Base shear & story stiffness parameters which are directly aligned with inclusion of shear wall in the building which indirectly affects the effectiveness during earthquake. A four-story structure for zone factor 0.16 as per Indian code were analyzed in ETABS 18.1.1 software where we carried four model with & without shear wall, varying thickness of shear wall & location of shear wall particularly at soft story. Incorporating shear walls increases story shear compared to structures without them, though

APA, Harvard, Vancouver, ISO, and other styles

6

Lacroix, M. "NATURAL CONVECTION HEAT TRANSFER FROM A DISCRETE HEAT SOURCE COUPLED WITH CONDUCTION DOMINATED PHASE CHANGE." Transactions of the Canadian Society for Mechanical Engineering 22, no. 3 (1998): 269–89. http://dx.doi.org/10.1139/tcsme-1998-0015.

Full text

Abstract:

A numerical study has been conducted for the heat transfer from a discrete heat source by natural convection in air above coupled with conduction dominated melting of a phase change material (PCM) below via a wall of finite thermal diffusivity. Results indicate that the presence of a PCM layer underneath the wall significantly delays the temperature rise of the heat source. The time delay increases as the thermal diffusivity of the wail material decreases and as the thickness of the PCM layer increases. For high thermal conductivity wall materials [Formula: see text] the steady state heat sour

APA, Harvard, Vancouver, ISO, and other styles

7

Kotani, Yuji, Shunsuke Kanai, and Hisaki Watari. "Characteristic Features of Thickness Change of Pipe during Die Forming." Advanced Materials Research 383-390 (November 2011): 2794–800. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.2794.

Full text

Abstract:

Recently the growing demand for light weight products with high strength has been increased by the rapid development of automobile and aircraft technology. Also, reduction of carbon dioxide emissions is one of the most important issues also in the automobile industry. The weight reduction technology is important even if applied to electric vehicles rather than gasoline vehicles, as reduction of energy consumption is an important issue. Plastic processing of hollow pipes is an important technology for realizing weight reduction of automobile components. As an example of research into pipe formi

APA, Harvard, Vancouver, ISO, and other styles

8

Popovski, Kire, Sevde Stavreva, Ivo Kuzmanov, and Igor Popovski. "Mathematical model for computer simulation for selection of the order for the layers from the wall of industrial coolers." South Florida Journal of Development 3, no. 3 (2022): 3681–88. http://dx.doi.org/10.46932/sfjdv3n3-051.

Full text

Abstract:

A mathematical model and computer software was developed for calculating the thickness of the insulation layers (panels) from the walls of the industrial coolers based on the order of their installation. A numerical example is given that is tested on an existing industrial cooler in Bitola, Macedonia. In order to calculate the thickness of the thermal insulation it is necessary to consider a multilayer barrier (wall) where for each layer the thickness is known, except for the insulation material which should be calculated. With the determined geometric and physical characteristics of the wall,

APA, Harvard, Vancouver, ISO, and other styles

9

Kalinović, Saša M., Jelena M. Djoković, Ružica R. Nikolić, and Branislav Hadzima. "Calculation of the Thermal Dynamic Performance of the Residential Buildings’ Walls." Quality Production Improvement - QPI 1, no. 1 (2019): 212–21. http://dx.doi.org/10.2478/cqpi-2019-0029.

Full text

Abstract:

Abstract Calculation of the thermal dynamic properties of the multi-layer wall isolation of residential buildings is presented in this paper. Taking into account that the final objective is to create a building with the highest energy efficiency ratio, i.e. with the lowest energy consumption, both for heating and cooling, it is necessary to realize the good thermal characteristics of the multi-layer wall. To obtain the optimal solution for the wall's structure, various wall structures with different thicknesses of the individual layers, were analyzed. Based on results, presented in this paper,

APA, Harvard, Vancouver, ISO, and other styles

10

Stepkova, Vilgelmina, and Jiří Hlinka. "Pinning of a ferroelectric Bloch wall at a paraelectric layer." Beilstein Journal of Nanotechnology 9 (August 31, 2018): 2356–60. http://dx.doi.org/10.3762/bjnano.9.220.

Full text

Abstract:

The phase-field simulations of ferroelectric Bloch domain walls in BaTiO3–SrTiO3 crystalline superlattices performed in this study suggest that a paraelectric layer with a thickness comparable to the thickness of the domain wall itself can act as an efficient pinning layer. At the same time, such a layer facilitates the possibility to switch domain wall helicity by an external electric field or even to completely change the characteristic structure of a ferroelectric Bloch wall passing through it. Thus, ferroelectric Bloch domain walls are shown to be ideal nanoscale objects with switchable pr

APA, Harvard, Vancouver, ISO, and other styles

11

Zeng, Changnv, Chaoxin Hu, and Wanwan Li. "Thermal Regulation Performance of Shape-Stabilized-Phase-Change-Material-Based Prefabricated Wall for Green Grain Storage." Materials 16, no. 3 (2023): 964. http://dx.doi.org/10.3390/ma16030964.

Full text

Abstract:

In order to meet the great demand for green grain storage and low carbon emissions, paraffin, high-density polyethylene (HDPE), and expanded graphite (EG) were used to produce shape-stabilized phase change material (SSPCM) plates, which were then used to reconstruct building walls for existing granaries. A new type of SSPCM plate was then prefabricated with different thermal conductivities and a high latent heat. This plate could be directly adhered to the existing granary walls. In order to evaluate the thermal regulation performance of these phase change granary walls, experiments and numeri

APA, Harvard, Vancouver, ISO, and other styles

12

Feng, Yong Jian, Zhi Lin Huang, and Long Fa Yi. "The Resistance of Micro-Fabricated Hollow Wire at Giga-Hertz Range." Advanced Materials Research 443-444 (January 2012): 779–83. http://dx.doi.org/10.4028/www.scientific.net/amr.443-444.779.

Full text

Abstract:

In this paper we investigate the resistance of micro hollow wire at Giga-hertz range. In order to get the optimum method, deduction in resistance can be achieved using hollow wire with optimum wall thickness. In the analysis the H field phase in the non-hollow wire changes periodically versus r with a period two times optimum wall thickness. More interesting thing is that the resistance of interconnect can be optimized by using hollow wire with optimum wall thickness. The optimum wall thickness is proportional to skin depth. The phase abrupt change point of H field has important relationship w

APA, Harvard, Vancouver, ISO, and other styles

13

Yahya, Ridwan, Agus Sundaryono, Tomoya Imai, and Junji Sugiyama. "DISTANCE FROM VESSELS CHANGES FIBER MORPHOLOGY IN ACACIA MANGIUM." IAWA Journal 36, no. 1 (2015): 36–43. http://dx.doi.org/10.1163/22941932-00000083.

Full text

Abstract:

Variation in fiber diameter and wall thickness was analyzed, with respect to the distance from xylem vessels in tangential and radial directions, using images containing the largest diameter along individual fibers from serial sections. For the diameter of the fibers around the vessel, it was often difficult to make a measurement in the radial and tangential direction, because of deformation. Then, around a vessel, we measured the fiber lumen diameter along the radial and tangential axes of the adjacent vessel. These are respectively referred as direction perpendicular to vessel enlargement (P

APA, Harvard, Vancouver, ISO, and other styles

14

Taheri Kahnamouei, J., and Mohammad Sedighi. "Theoretical, Numerical and Experimental Investigation of the Effects of Manufacturing Process Parameters on Thin-Walled Tube Bending Defects." Advanced Materials Research 83-86 (December 2009): 1107–12. http://dx.doi.org/10.4028/www.scientific.net/amr.83-86.1107.

Full text

Abstract:

The aim of this paper is to survey thin-walled tube bending process (without use of mandrel and booster). In tube bending process there are several effective parameters such as wall thickness, outer diameter-to-wall thickness ratio, and centerline bending radius-to-outer diameter ratio. Any mismatch in selecting these parameters would cause defects like wrinkling, variation in wall thickness, and cross section distortion. Firstly, the effects of these parameters on the initiation of the wrinkle, depth of wrinkling, change in wall thickness, and cross section distortion are studied. For this pu

APA, Harvard, Vancouver, ISO, and other styles

15

Waes, Mousa M. "Optimum Building Wall Thickness under Actual Weather Conditions for Kirkuk City." Tikrit Journal of Engineering Sciences 25, no. 4 (2018): 10–14. http://dx.doi.org/10.25130/tjes.25.04.03.

Full text

Abstract:

he aim of the present study is to obtain the optimum wall thickness of the buildings from four different wall thickness sizes that which selected as 48, 32, 24, and 16 cm used for building room. The dimension of 6×4×3 m, built by a common brick insulated for all sides except south wall. For this purpose, an energy simulation has been conducted by preparing a computer programmer and was executed by Matlab software. The two days in different weather conditions on 2016, first on 30/12, and other 01/07 for a constant indoor temperature at 23oC. The results showed that the inner surface temperature

APA, Harvard, Vancouver, ISO, and other styles

16

Liu, S. Q., and Y. C. Fung. "Relationship Between Hypertension, Hypertrophy, and Opening Angle of Zero-Stress State of Arteries Following Aortic Constriction." Journal of Biomechanical Engineering 111, no. 4 (1989): 325–35. http://dx.doi.org/10.1115/1.3168386.

Full text

Abstract:

Examination of changes occurring in the zero-stress state of an organ provides a way to study cellular growth in the organ due to change of physical stresses. The zero-stress state of the aorta is not a tube. It is a sector with an opening angle that varies with the location on the aorta and changes with cellular remodeling. Blood vessel remodeling can be induced by imposing a constriction on the abdominal aorta by a metal clip (aortic banding), which causes an increase of blood pressure, hypertrophy of the aortic wall, and large change of opening angle. The correlation of the opening angle wi

APA, Harvard, Vancouver, ISO, and other styles

17

Abdi, Rahim, and Nader Abdoli Yazdi. "Effects of Aspect Ratio and Plate Thickness on the Behavior of Unstiffened Steel-Plate Shear Walls with Pinned and Rigid Connections." Civil Engineering Journal 4, no. 6 (2018): 1383. http://dx.doi.org/10.28991/cej-0309180.

Full text

Abstract:

Unstiffened steel plate shear walls (SPSWs) have been in use mostly in recent years. In this numerical study, the buckling behavior of a single-storey single-bay unstiffened SPSW with two pinned and rigid beam-column connections under lateral loading is investigated. The SPSW had different wall aspect ratios (L/h=1, 1.5, 2, 2.5, and 3) and infill plate thicknesses (tw= 3, 5, and 7 mm). Their effect on the buckling behavior of SPSW was examined using buckling analysis in ABAQUS software. Results indicated that with the increase of infill plate thickness, the lateral resistance of unstiffened SP

APA, Harvard, Vancouver, ISO, and other styles

18

Afsharan, Hadi, Dilusha Silva, Chulmin Joo, and Barry Cense. "Non-Invasive Retinal Blood Vessel Wall Measurements with Polarization-Sensitive Optical Coherence Tomography for Diabetes Assessment: A Quantitative Study." Biomolecules 13, no. 8 (2023): 1230. http://dx.doi.org/10.3390/biom13081230.

Full text

Abstract:

Diabetes affects the structure of the blood vessel walls. Since the blood vessel walls are made of birefringent organized tissue, any change or damage to this organization can be evaluated using polarization-sensitive optical coherence tomography (PS-OCT). In this paper, we used PS-OCT along with the blood vessel wall birefringence index (BBI = thickness/birefringence2) to non-invasively assess the structural integrity of the human retinal blood vessel walls in patients with diabetes and compared the results to those of healthy subjects. PS-OCT measurements revealed that blood vessel walls of

APA, Harvard, Vancouver, ISO, and other styles

19

Vydrin, A., V. Neroznikov, D. Zvonarev, and K. Trubnikov. "ANALYSIS OF THE INFLUENCE OF SETTING PARAMETERS WASHING MACHINE ON THE CHANGE OF CASE WALL DIAMETER AND THICKNESS." Bulletin of the South Ural State University Series ‘Metallurgy’ 22, no. 1 (2022): 42–52. http://dx.doi.org/10.14529/met220105.

Full text

Abstract:

In the production of seamless pipes, a mass method is the use of billet piercing at helical rolling mills with the first rolling at longitudinal rolling mills. At the same time, increased requirements are imposed on the quality and geometric parameters of finished pipes. Geometric parameters include such as wall thickness, diameter, thickness variation. In this case, the difference in thickness mainly affects the quality of the liner. It is known that the same geometric parameters of the sleeve (diameter and wall thickness) can be obtained at different distances between the rolls, the distance

APA, Harvard, Vancouver, ISO, and other styles

20

Zhou, Chundong, Xiaoyong Zhang, Yong Peng, et al. "Simulation of the Influence of the as-Deposited Wall Thickness on Arc Shape and Stability during Wire Arc Additive Manufacturing." Metals 12, no. 10 (2022): 1563. http://dx.doi.org/10.3390/met12101563.

Full text

Abstract:

The single-pass multi-layer depositing strategy is usually used to fabricate thin-wall structures with wire and arc additive manufacturing (WAAM) technology. Various deposited wall thicknesses often lead to a change in arc shrinkage in the wall thickness direction, which affects the arc shape and stability, and even the microstructure and properties. To systematically study the effect of wall thickness (δ) on arc shape and stability, 3D numerical models were established, with wall thickness varying from 1 to 14 mm during the WAAM process. The characteristics of the arc shape, temperature field

APA, Harvard, Vancouver, ISO, and other styles

21

Kozlov, A. V., I. V. Chumanov, and M. A. Matveeva. "Investigation of the character of change of geometrical dimensions of a tubular billet at its deformation by rolling method." Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information 79, no. 11 (2023): 915–20. http://dx.doi.org/10.32339/0135-5910-2023-11-915-920.

Full text

Abstract:

Obtaining bent pipe bends is an urgent scientific and technical task, for the solution of which it is necessary to determine the influence of the deformation process on the geometric dimensions of the billet. It is especially important to control the thinning of the outer wall of the bend, as this parameter is critical for the service characteristics of the bend. At the Department of Machine Building Technologies, Machine Tools and Instruments of South Ural State University (National Research University) works on studying the process of deformation of a tubular billet by the method of rolling

APA, Harvard, Vancouver, ISO, and other styles

22

Seo, Jeong-Wook, Dieter Eckstein, Allan Buras, Jörg Fromm, Martin Wilmking, and Andrea Olbrich. "Changes in wood anatomical traits in Scots pine under different climate-change scenarios." IAWA Journal 41, no. 2 (2020): 202–18. http://dx.doi.org/10.1163/22941932-00002111.

Full text

Abstract:

Abstract Although cell-anatomical variables are promising proxies reflecting seasonal as well as annual climate changes, their interdependencies are not yet fully understood. In the present study we assessed the changes in tree-ring width and various wood anatomical traits, including wall thickness, lumen diameter and tracheid diameter in the radial direction in saplings of Pinus sylvestris under six climatic conditions: 5°C warmer alone (ET) or combined with drought in June (ETJ) and in August (ETA) and CO2 enrichment alone (EC, 770 ppm) or combined with drought in June (ECJ) and in August (E

APA, Harvard, Vancouver, ISO, and other styles

23

Liang, De Zhi, and Yue Liu. "FEM Analysis in Thermal Stresses of Basement Wall and Floor." Advanced Materials Research 163-167 (December 2010): 1312–15. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.1312.

Full text

Abstract:

In this paper, thermal stresses due to variation of air temperature , surrounding soil elastic constraint and other effects on the basement wall and floor. Though finite element method (FEM )elastic analysis, thermal stresses distribution on the wall and floor to be drawn and qualitative summary of the variation thermal stresses with the change of walls` length and floor`s thickness.

APA, Harvard, Vancouver, ISO, and other styles

24

Hou, Zhen Xiu, En Ren Liu, An Feng, and Zhong Ren Wang. "Finite Element Analysis of Hemispherical-Shape Parts in the Hot Gas Bulge-Forming of Polycarbonate (PC) Sheet." Applied Mechanics and Materials 10-12 (December 2007): 140–44. http://dx.doi.org/10.4028/www.scientific.net/amm.10-12.140.

Full text

Abstract:

To explore geometrical shape deforms, stress distribution, strain distribution and wall thickness of products in the process of polycarbonate (PC) hot gas pressure bulging, numerical simulation of 1mm thick hemispherical PC part with a diameter of 100mm has been conducted by the software of DYNAFORM. The result shows that abrupt changes tend to occur in the deforming of PC sheet as the even loaded pressure increases to a given point. A critical circle exists in the photoelastic experiment of latitude strain distribution, wall thickness distribution and displacement change, thus making the wall

APA, Harvard, Vancouver, ISO, and other styles

25

Chen, Ximo. "Analysis of thermal characteristics and thermal storage performance of energy-saving phase change thermal storage materials in buildings." Thermal Science 28, no. 2 Part B (2024): 1509–17. http://dx.doi.org/10.2298/tsci2402509c.

Full text

Abstract:

In order to explore the thermal characteristics and thermal storage performance analysis of energy-saving phase change heat storage materials in buildings, taking the common exterior wall insulation composite wall structure in southwestern China as an example, the influence of insulation board structure thickness design on the total cost of residential air conditioning energy consumption and insulation board cost is studied, thus clarifying the concept and calculation origin of economic insulation thickness. The experimental results show that by drawing mathematical functions of energy consump

APA, Harvard, Vancouver, ISO, and other styles

26

Yuan, Jihui. "Impact of Insulation Type and Thickness on the Dynamic Thermal Characteristics of an External Wall Structure." Sustainability 10, no. 8 (2018): 2835. http://dx.doi.org/10.3390/su10082835.

Full text

Abstract:

The dynamic thermal characteristics of external wall structures are directly related to indoor thermal comfort and energy savings in buildings; they are also complicated and worth investigating. Thermal insulation in external wall structures has become a popular topic of investigation in the domain of building energy efficiency. This study aims to find the impact of insulation type and thickness on the dynamic thermal characteristics of external wall structures using a homogeneous multi-layer building external wall structure and three types of insulation materials that are widely used in Japan

APA, Harvard, Vancouver, ISO, and other styles

27

Zhang, Xiang, and Hossein Nowamooz. "Factors Influencing the Thermo–Hydro–Mechanical Behavior of Unstabilized Rammed Earth Walls." Materials 15, no. 24 (2022): 8821. http://dx.doi.org/10.3390/ma15248821.

Full text

Abstract:

Waterproof capacity, thermal isolation, and pushover strength are the main characteristics when an unstabilized rammed earth (URE) wall is constructed. In this paper, a comprehensive numerical simulation model is built to evaluate the effect of 15 different factors on those three aforementioned properties of URE walls. The simulation results show that the hydraulic, thermal, and mechanical properties of the wall are interconnected. It is found that the waterproof capacity of the wall can be mainly improved by increasing the dry density, decreasing the rising damp effect, and reducing the fine

APA, Harvard, Vancouver, ISO, and other styles

28

Norouziasas, Alireza, Hang Yin, and Mohamed Hamdy. "Impact of Positioning Phase Change Materials on Thermal Performance of Buildings in Cold Climates." Journal of Physics: Conference Series 2654, no. 1 (2023): 012066. http://dx.doi.org/10.1088/1742-6596/2654/1/012066.

Full text

Abstract:

Abstract The building envelope, an essential component of any building, plays a critical role in meeting energy efficiency and thermal comfort requirements. Incorporating phase change materials (PCM) into the building envelope can offer an opportunity to minimize energy usage and enhance thermal comfort by offsetting daily temperature fluctuations. However, the optimal performance of PCM is contingent on the material’s placement and thickness within the building envelope. Therefore, this study investigated the effects of positioning and thickness of PCM on thermal comfort and heating loads in

APA, Harvard, Vancouver, ISO, and other styles

29

Wang, Lily, Serge Payette, and Yves Bégin. "Relationships between anatomical and densitometric characteristics of black spruce and summer temperature at tree line in northern Quebec." Canadian Journal of Forest Research 32, no. 3 (2002): 477–86. http://dx.doi.org/10.1139/x01-208.

Full text

Abstract:

Tracheid cell number, cell diameter, and cell-wall thickness of black spruce (Picea mariana (Mill.) BSP) tree rings at the tree line (northern Quebec, Canada) were measured using image analysis. The densitometric data from the same samples were used to evaluate the features of image analysis. The anatomical data were correlated with summer temperature variables, including: means of pentad temperature (five consecutive days), growing season (May- September), sum of degree-days, and number of frost-free days. Our results suggest that the main cause of the pale appearance of light rings is thinne

APA, Harvard, Vancouver, ISO, and other styles

30

Zator, Sławomir, Michał Tomaszewski, and Mirosław Lasar. "A Diagnostic Method Based on Active Thermography for the Degradation Assessment of Power Plant Boiler Tubes." Sensors 22, no. 21 (2022): 8401. http://dx.doi.org/10.3390/s22218401.

Full text

Abstract:

Proper maintenance management of power infrastructure requires inspections, in order to gather knowledge about the facility’s current condition. For this purpose, periodic diagnostic tests are carried out, not only to determine the current state, but to also predict future conditions, and subsequently plan for the scope of necessary repair work. Currently, in the case of heat screens of power boilers, the diagnostic process takes many days, is very expensive, and usually does not cover the entire screen area. Therefore, it is necessary to develop new, noninvasive diagnostic methods. This study

APA, Harvard, Vancouver, ISO, and other styles

31

Klimes, Lubomir, Pavel Charvát, and Josef Stetina. "Mathematical Model of Multi-Layer Wall with Phase Change Material and its Use in Optimal Design." Advanced Materials Research 649 (January 2013): 295–98. http://dx.doi.org/10.4028/www.scientific.net/amr.649.295.

Full text

Abstract:

The paper deals with the mathematical model of the multi-layer wall containing the phase change material (PCM). The model utilizes the effective heat capacity method for modeling the latent heat of phase change and the control volume method is used for the discretization of the model. The utilization of the model is then demonstrated on the problem of the optimal design of the multi-layer wall with the PCM. The TMY2 data for the city of Brno were used in simulations as operational conditions. The main attention is aimed at the determination of the optimal thickness of the PCM layer for the mul

APA, Harvard, Vancouver, ISO, and other styles

32

Kuang, Tangqing, Chuixin Kong, Hesheng Liu, and Fan Yang. "Research on the Quality of Composite Pipe Components in Fluid-Powered Projectile-Assisted Injection Molding." Polymers 17, no. 4 (2025): 489. https://doi.org/10.3390/polym17040489.

Full text

Abstract:

Composite pipe fittings with an outer layer of 20% long glass fiber-reinforced polypropylene (LGFR-PP) and an inner layer of polypropylene (PP) were prepared via water-powered projectile-assisted co-injection molding short-shot (W-PACIM-S), water-powered projectile-assisted co-injection molding overflow (W-PACIM-O), gas-powered projectile-assisted co-injection molding short-shot (G-PACIM-S), and gas-powered projectile-assisted co-injection molding overflow (G-PACIM-O)techniques. The effects of different injection molding processes on the wall thickness, inner surface roughness, glass fiber ori

APA, Harvard, Vancouver, ISO, and other styles

33

Hong, Cheng, Zhixiang Tian, Kai Liu, Bin Tu, and Tianlin Zhang. "Analysis of axial compression performance of steel - foamed ceramsite concrete composite structure wallboard." Journal of Physics: Conference Series 2202, no. 1 (2022): 012017. http://dx.doi.org/10.1088/1742-6596/2202/1/012017.

Full text

Abstract:

Abstract Through the finite element analysis of the vertical axial load test of 9 self bearing and self insulation precast walls, the effects of the thickness of section steel, the strength of section steel, the strength of foamed ceramsite concrete, the layout of section steel and the thickness of foamed ceramsite plate on the failure mode, bearing capacity and overall stress of the wall plate are studied. The research shows that the strength of foamed ceramsite concrete is the main factor affecting the wall stress-strain curve, the layout form of section steel and wall thickness are importan

APA, Harvard, Vancouver, ISO, and other styles

34

Aidi, Moussa, Yamina Harnane, Sihem Bouzid, and Lyes Bordja. "Numerical Study on the Effect of Incorporating Phase Change Materials in a Wall." International Journal of Automotive and Mechanical Engineering 21, no. 2 (2024): 11287–301. http://dx.doi.org/10.15282/ijame.21.2.2024.9.0872.

Full text

Abstract:

Integrating phase-change materials (PCMs) into the structure of a building can significantly improve its heat storage capacity and thermal performance. Thanks to their phase-change properties, PCMs can absorb, store and release large amounts of energy in the form of latent heat within a narrow temperature range. This study examines the thermal behavior of a housing wall that incorporates PCM to increase its thermal inertia. Simulations using Ansys Fluent 14.0 software compare a standard wall with a wall incorporating layers of PCM of different thicknesses and positions. Three types of PCM - RT

APA, Harvard, Vancouver, ISO, and other styles

35

Cheng, Lei, Chunlong Zhuang, Shengbo Li, et al. "Thermal Performance Optimization Simulation Study of a Passive Solar House with a Light Steel Structure and Phase Change Walls." Energies 16, no. 9 (2023): 3725. http://dx.doi.org/10.3390/en16093725.

Full text

Abstract:

Phase change materials are used in passive solar house construction with light steel structure walls, which can overcome the problems of weak heat storage capacity and poor utilization of solar heat and effectively solve the thermal defects of light steel structure walls. Based on this, on the basis of preliminary experimental research, this study further carried out theoretical analysis and simulation research on the thermal performance of a light steel structure passive solar house (Trombe form) with PCM walls. Through the heat balance analysis of heat transfer in the heat collecting partiti

APA, Harvard, Vancouver, ISO, and other styles

36

Abdullah, Hassan Kareem, and Rana Qassim Faraj. "The Effect of Exterior Wall Color on Thermal Performance of Building." Tikrit Journal of Engineering Sciences 29, no. 3 (2022): 15–23. http://dx.doi.org/10.25130/tjes.29.3.2.

Full text

Abstract:

An experimental study of four colors of ordinary dye (white, yellow, tibny, blue) of the external wall of the apartment building was carried out in the current work, to find out the range of its effect on the heating load in the winter season comparing with dark color of cement wall at 24hr. In the southern wall was made two opening, the dimensions of the opening were 1 meter high and 0.3-meter width. Two types of walls are built in the two opening. The first wall was made of bricks and was covered with a layer of cement (Ficus) 1 cm in thickness, while the second wall was also built of bricks

APA, Harvard, Vancouver, ISO, and other styles

37

Hao, Yong Xing, Su Juan Shi, Lv Yun Yang, and Song Wei Yang. "Change of Plastic Hinge Position in Radial Ring Rolling without Guide-Roll." Applied Mechanics and Materials 42 (November 2010): 30–34. http://dx.doi.org/10.4028/www.scientific.net/amm.42.30.

Full text

Abstract:

Radial ring rolling is an unsteady plastic deformation process. Internal stress of the ring is foundation of formation of the plastic hinge. The radial wall thickness of ring changes gradually along ring circumferential direction. Theoretical analysis and FE simulation show that: the plastic hinge is not always exactly opposite to the rolling deformation zone in ring rolling process without guide-roll. The plastic hinge position angle β0 is affected by ratio of rolling entrance wall thickness H0 and rate of wall thickness change η. Curve of β0-H0/η is shaped as double U staggered relative to e

APA, Harvard, Vancouver, ISO, and other styles

38

Orlov, G. A., and O. V. Starichkova. "Predicting of pipes wall thickness accuracy by radial compression." Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information 80, no. 1 (2024): 57–62. http://dx.doi.org/10.32339/0135-5910-2024-1-57-62.

Full text

Abstract:

The article discusses an example of an analytical approach to predicting one of the important indicators of pipe quality ‒ the accuracy of wall thickness. Modeling of changes in eccentric wall thickness variation during radial compression of a pipe in a round gauge on a round mandrel was carried out using the variational method by minimizing the functionality of the virtual speed principle. The procedure for solving the problem on a computer included the formation of a geometric model of the initial wall thickness variation, construction of a field of virtual flow velocities accurate to two va

APA, Harvard, Vancouver, ISO, and other styles

39

Charvátová, Hana, Aleš Procházka, and Martin Zálešák. "Computer Simulation of Passive Cooling of Wooden House Covered by Phase Change Material." Energies 13, no. 22 (2020): 6065. http://dx.doi.org/10.3390/en13226065.

Full text

Abstract:

The paper is devoted to computer simulations of the distribution and time evolution of the temperature in a wooden house in summer. The goal of simulations was to assess the effect of covering walls inside the house with a PCM (phase change material) on its passive cooling, which prevents the undesired overheating of the house and provides the required thermal comfort for the occupants under warm summer days. Computer simulations were performed by the COMSOL Multiphysics software (COMSOL Inc., Stockholm, Sweden). A model of a house without the PCM coverage was compared with models of houses in

APA, Harvard, Vancouver, ISO, and other styles

40

Birk, A. M. "The Effect of Reduced Design Margin on the Fire Survivability of ASME Code Propane Tanks." Journal of Pressure Vessel Technology 127, no. 1 (2005): 55–60. http://dx.doi.org/10.1115/1.1845476.

Full text

Abstract:

In the 1999 addenda to the 1998 ASME pressure vessel code, Section VIII, Div. 1 there was a change in design margin for unfired pressure vessels from 4.0 to 3.5. This has resulted in the manufacture of propane and LPG tanks with thinner walls. For example, the author has purchased some new 500 gallon ASME code propane tanks for testing purposes. These tanks had the wall thickness reduced from 7.7 mm in 2000 to 7.1 mm in 2002 and now to 6.5 mm in 2004. These changes were partly due to the code change and partly due to other factors such as steel plate availability. In any case, the changes in w

APA, Harvard, Vancouver, ISO, and other styles

41

de Cruz, Marna, Babita Pawarova, Helen Lachmann, et al. "Early Detection of Cardiac Systolic Functional Impairment and Correlation with NT-ProBNP Change in AL Amyloidosis by Cardiac Lateral Wall Tissue Doppler S Wave." Blood 114, no. 22 (2009): 2814. http://dx.doi.org/10.1182/blood.v114.22.2814.2814.

Full text

Abstract:

Abstract Abstract 2814 Poster Board II-790 N-terminal fragment of brain natriuretic peptide is a cardiac biomarker that has prognostic significance in amyloidosis and NT-ProBNP can rapidly change after completion of chemotherapy. We and others who have previously reported such changes in NT-ProBNP to be of prognostic significance but there was no cardiac “progression” or “improvement” according to the international amyloidosis consensus criteria (Gertz et al 2005) in the majority - making this finding difficult to explain. We now report subtle changes in left ventricular systolic function usin

APA, Harvard, Vancouver, ISO, and other styles

42

Alvin, K. L., and R. J. Murphy. "Variation in Fibre and Parenchyma Wall Thickness in Culms of the Bamboo Sinobambusa Tootsik." IAWA Journal 9, no. 4 (1988): 353–61. http://dx.doi.org/10.1163/22941932-90001095.

Full text

Abstract:

The mid-internodal anatomy of three culms estimated to be less than one, one to two and more than two years old respectively, has been investigated revealing significant increases in average cell wall thickness of the fibres and ground tissue parenchyma. The basic density of the culm also increases. Cortical parenchyma, in contrast, shows no obvious change. Both fibres and parenchyma appear to retain living protoplasts . Progressive thickening of the cell walls over a period of perhaps several years would have important implications for harvesting and utilisation of bamboo culms and would expl

APA, Harvard, Vancouver, ISO, and other styles

43

Takezawa, M., K. Ejiri, J. Yamasaki, H. Asada, and T. Koyanagi. "Domain-wall pinning by steplike thickness change in magnetic thin film." Journal of Applied Physics 99, no. 8 (2006): 08B701. http://dx.doi.org/10.1063/1.2162038.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Ho, Ching-Jenq, Shih-Ming Lin, Rong-Horng Chen, and Chi-Ming Lai. "Effects of Wall Properties on Temperature-Control Effectiveness of Heating Section in a Thermosiphon Containing PCM Suspensions." Applied Sciences 10, no. 18 (2020): 6211. http://dx.doi.org/10.3390/app10186211.

Full text

Abstract:

This article considers the problem of natural heat transfer in a rectangular thermosiphon to investigate the effects of wall properties (thickness and thermal conductivity) on the heat-transfer characteristics of phase-change-material (PCM) suspension flow. The following parameter ranges were investigated: dimensionless loop-wall thickness, 0–0.5; wall-to-fluid thermal-conductivity ratio, 0.1–100; modified Rayleigh number, 1010–1011; and volumetric fraction of PCM particles, 0–10%. From numerical simulations via the finite-volume approach, it was found that using a pipe with appropriate wall t

APA, Harvard, Vancouver, ISO, and other styles

45

Filippov, Y. K., and A. G. Zaytsev. "Research of tubular samples on stretching (plane deformation)." Izvestiya MGTU MAMI 9, no. 1-2 (2015): 32–37. http://dx.doi.org/10.17816/2074-0530-67133.

Full text

Abstract:

The article presents the technique of research of a plane strain condition of material by stretching of a tubular sample on a chuck. Experiments are made and thickness change diagrams for stretched sample are submitted. It is shown changes of deformation of destruction depending on wall thickness of a stretched sample for materials 20H and D16.

APA, Harvard, Vancouver, ISO, and other styles

46

Kozlov, A. V., I. V. Chumanov, M. A. Matveeva, and D. A. Maternovskii. "Estimation of pipe wall thickness variation during bending rolling." Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information 80, no. 4 (2024): 54–59. http://dx.doi.org/10.32339/0135-5910-2024-4-54-59.

Full text

Abstract:

Abstract. The presented work examines the process of bending pipes using the cold rolling method. The main pa-rameters of bending that affect the change in wall thickness during the deformation process are analyzed. The influence of changing the shape of the cross-sectional shape, the increase in the pipe diameter, and the displacement of the neutral layer of bending, is identified. Theoretical values of thickening and thinning of the pipe wall are presented depending on the bending parameters. The authors provide theoretical and experimental data to assess the wall thickness variation. Data o

APA, Harvard, Vancouver, ISO, and other styles

47

Ghoben, Zainab K., Khaled Al-Farhany, and Mohammed Q. Kareem. "The Computational Fluid Dynamics Investigation on the Solidification of Aluminum Cast in Moulds with Different Thickness and the Influence of the Moderate Press." Materials Science Forum 1039 (July 20, 2021): 127–36. http://dx.doi.org/10.4028/www.scientific.net/msf.1039.127.

Full text

Abstract:

The influence of applying an external distributed pressure along the upper surface of the molten metal (Aluminum ) during the solidification process on the temperature reduction profile was studied including the time of solidification of the cast and the phase change moving boundary location for two mould wall thicknesses (10mm and 15mm). A 3D model was built up by Solidworks and simulated by ANSYS FLUENT; each mould wall thickness was discussed for two press cases (1bar and 3bar) sequentially, comparing with no press cases. The discussion includes the ambient temperature effect, which is take

APA, Harvard, Vancouver, ISO, and other styles

48

Choy, Bo Ying, Rowan G. Walker, and Gavin J. Becker. "Vasculopathy in cyclosporine‐treated renal allografts: Possible protection by diltiazem." Clinical Transplantation 8, no. 3pt1 (1994): 271–73. http://dx.doi.org/10.1111/j.1399-0012.1994.tb00251.x.

Full text

Abstract:

Morphometric quantitative analysis of the renal arterioles (arteriole wall thickness and overall vessel size) in renal biopsies from 21 cadaveric renal allograft recipients taken immediately prior to (0 months) and 3 months after transplantation was carried out using a computeraided image analyzer. Patients (n = 10) who received standard therapy (cyclosporine, azathioprine and prednisolone) showed an increase in arteriole wall thickness at 3 months compared to 0 months (p<0.01). Patients (n=11) who received standard therapy and oral diltiazem (60 mg t.d.s.) showed no such change in the arte

APA, Harvard, Vancouver, ISO, and other styles

49

Ben Zaid, Zaineb, Amine Tilioua, Omar Ansari, Ibtissam Lamaamar, and Moulay Ahmed Hamdi Alaoui. "Numerical study of the efficiency of integrating phase change material into a clay-straw wall in the Drâa-Tafilalet region (Errachidia Province)." E3S Web of Conferences 297 (2021): 01007. http://dx.doi.org/10.1051/e3sconf/202129701007.

Full text

Abstract:

The objective of this study is to evaluate the thermal performance of clay-straw walls of buildings integrating phase change materials (PCM). The influence of integrating different types of PCM in the envelope has been studied numerically in several studies. The optimal wall thickness with PCM integrated suitable for the climatic conditions of Errachidia has been studied. The heat balance equations for the different wall configurations are formulated and solved numerically under the same climatic conditions. The results obtained show that the integration of PCM in the clay-straw wall instead o

APA, Harvard, Vancouver, ISO, and other styles

50

Raley, Michael, and Benjamin M. Shafer. "Sound transmission loss through steel-framed building partitions." Journal of the Acoustical Society of America 155, no. 3_Supplement (2024): A48. http://dx.doi.org/10.1121/10.0026754.

Full text

Abstract:

Load-bearing steel-stud walls pose a unique acoustical challenge because both the spacing and the mil thickness of the studs can significantly affect the acoustical performance of these walls. A single wall type in a load-bearing steel building may actually include many acoustically distinct walls as the stud spacing and mil thickness change from floor to floor in the building due to the different loads. This can be especially challenging on delegated design projects where the final selection of the steel studs is left to the framing contractor and may not be included in the project documents

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!