Log in

Relevant bibliographies by topics / Shielding / Journal articles

To see the other types of publications on this topic, follow the link: Shielding.

Journal articles on the topic 'Shielding'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 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 'Shielding.'

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

Duc, H. B., T. P. Minh, D. B. Minh, N. P. Hoai, and V. D. Quoc. "An Investigation of Magnetic Field Influence in Underground High Voltage Cable Shields." Engineering, Technology & Applied Science Research 12, no. 4 (2022): 8831–36. http://dx.doi.org/10.48084/etasr.5021.

Full text

Abstract:

Magnetic fields and the shielding efficiency of the shields of underground high voltage cables are studied in this paper regarding several shielding configurations and materials. Shielding efficiency and magnetic fields are computed for shields with the same mesh but from different shielding materials, such as aluminum, ferrite, metal, and steel. In order to get the best shield configuration depending on the source characteristics and the material, a conducting ferromagnetic region with various thickness values is considered as shielding. A finite element model is introduced to investigate the

APA, Harvard, Vancouver, ISO, and other styles

2

Zuschneid, Thomas, Holger Fischer, Thomas Handel, Klaus Albert, and Günter Häfelinger. "Experimental Gas Phase 1H NMR Spectra and Basis Set Dependence of ab initio GIAOMO Calculations of 1H and 13C NMR Absolute Shieldings and Chemical Shifts of Small Hydrocarbons." Zeitschrift für Naturforschung B 59, no. 10 (2004): 1153–76. http://dx.doi.org/10.1515/znb-2004-1012.

Full text

Abstract:

AbstractHigh-resolution gas phase measurements of 1H NMR spectra at 400 MHz and atmospheric pressure of seven small hydrocarbons are presented. The developed new method and the experimental set-up are described. Ab initio GIAO MO calculations of 1H and 13C NMR absolute shieldings on the HF, MP2 and B3LYP levels using 25 standard gaussian basis sets are reported for these hydrocarbons, based on experimental re distances. The measured gas phase 1H chemical shifts have been converted to an absolute σ0 shielding scale by use of the literature shielding of methane. These and gas phase 13C literatur

APA, Harvard, Vancouver, ISO, and other styles

3

Maekawa, Fujio. "Shielding." hamon 28, no. 4 (2018): 208–11. http://dx.doi.org/10.5611/hamon.28.4_208.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Hong, Se-Hee, Jin-Seok Choi, Tian-Feng Yuan, and Young-Soo Yoon. "Mechanical and Electrical Characteristics of Lightweight Aggregate Concrete Reinforced with Steel Fibers." Materials 14, no. 21 (2021): 6505. http://dx.doi.org/10.3390/ma14216505.

Full text

Abstract:

There is increased interest in applying electromagnetic (EM) shielding to prevent EM interference, which destroys electronic circuits. The EM shielding’s performance is closely related to the electrical conductivity and can be improved by incorporating conductive materials. The weight of a structure can be reduced by incorporating lightweight aggregates and replacing the steel rebars with CFRP rebars. In this study, the effects of lightweight coarse aggregate and CFRP rebars on the mechanical and electrical characteristics of concrete were investigated, considering the steel fibers’ incorporat

APA, Harvard, Vancouver, ISO, and other styles

5

Hansen, C., A. B. Reimann, and J. Fajans. "Dynamic and Debye shielding and anti‐shielding." Physics of Plasmas 3, no. 5 (1996): 1820–26. http://dx.doi.org/10.1063/1.871685.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Sasaki, H., T. Shiraishi, and A. Kawanishi. "Magnetic shielding and minimization of shielding material." IEEE Transactions on Magnetics 30, no. 4 (1994): 2523–26. http://dx.doi.org/10.1109/20.305791.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Kim, Seon-Chil. "Analysis of Shielding Performance of Radiation-Shielding Materials According to Particle Size and Clustering Effects." Applied Sciences 11, no. 9 (2021): 4010. http://dx.doi.org/10.3390/app11094010.

Full text

Abstract:

In the field of medical radiation shielding, there is an extensive body of research on process technologies for ecofriendly shielding materials that could replace lead. In particular, the particle size and arrangement of the shielding material when blended with a polymer material affect shielding performance. In this study, we observed how the particle size of the shielding material affects shielding performance. Performance and particle structure were observed for every shielding sheet, which were fabricated by mixing microparticles and nanoparticles with a polymer material using the same pro

APA, Harvard, Vancouver, ISO, and other styles

8

Mei, Nan, Xiao Yu Wang, Xin Wang, et al. "Research on Shielding Effectiveness Calculation Method of Electromagnetic Shielding Materials." Solid State Phenomena 304 (May 2020): 137–41. http://dx.doi.org/10.4028/www.scientific.net/ssp.304.137.

Full text

Abstract:

Electromagnetic shielding materials are widely used in engineering. Shielding effectiveness is an important index to measure the shielding effect of electromagnetic shielding materials. A method for calculating the shielding effectiveness of electromagnetic shielding materials is discussed in this paper. This method applies the small reflection theory in transmission line theory. Two kinds of materials are selected as samples. Firstly, the shielding performance is calculated by calculation. Then, shielding performance was measured using a network analyzer and coaxial devices. By comparing the

APA, Harvard, Vancouver, ISO, and other styles

9

Meng, Qingzhi, Zelin Wang, Qijing Lin, Dengfeng Ju, Xianfeng Liang, and Dan Xian. "Theoretical Analysis of a Magnetic Shielding System Combining Active and Passive Modes." Nanomaterials 14, no. 6 (2024): 538. http://dx.doi.org/10.3390/nano14060538.

Full text

Abstract:

Considering the magnetic shielding requirements of both geomagnetic field and 50 Hz power-line frequency in the complex working conditions of the power grid, an electromagnetic shielding system combining active and passive modes is proposed in this article. A three-dimensional Helmholtz coil with a magnetic shielding barrel nested inside is established by the COMSOL simulation tool, and the magnetic shielding efficiency of the system is analyzed. Comparing different materials, the simulation results indicate that permalloy alloy exhibits better shielding performance than pure iron and nickel m

APA, Harvard, Vancouver, ISO, and other styles

10

PAVLENKO, Yevhen, and Mikhailo STEPANOV. "ELECTROMAGNETIC SHIELDING AS A WAY OF PROTECTING INFORMATION FROM ITS LEAKAGE BY TECHNICAL CHANNELS." Herald of Khmelnytskyi National University. Technical sciences 319, no. 2 (2023): 231–39. http://dx.doi.org/10.31891/2307-5732-2023-319-1-240-246.

Full text

Abstract:

In this paper, investigated one of the way of protecting information from its leakages through the technical channels, such as shielding. The first part of the work mainly consider the theoretical principles of shielding, such as definition and process of shielding, its types, main task of the shield, highlighted the concept of shielding efficiency, presented dependence for calculating the efficiency of electromagnetic shield, provided shields classification according to three characteristics: type of field interference, design and material, shield forms, for each of them presented dependence

APA, Harvard, Vancouver, ISO, and other styles

11

Palasek, B., A. Puszko, Z. Biedrzycka, W. Sicinska, and M. Witanowski. "Nitrogen NMR shieldings of 2-amino-5-nitro-6-methylpyridines." Spectroscopy 13, no. 4 (1997): 251–56. http://dx.doi.org/10.1155/1997/304503.

Full text

Abstract:

Nitrogen NMR shieldings (chemical shifts) of 2-amino-5-nitro-6-methylpyridine derivatives are assessed from the point of view of substituent-induced effects under conditions where alkyl, aryl, nitro, and nitroso moieties are substituents at the amino nitrogen. The nitro nitrogen shielding reveals only little variation upon varying the substituents, and this seems to indicate that steric hindrance which is likely to force the nitro group out of the plane of the aromatic ring reduces theπ-electron conjugation with the latter, and with the amino group as well. On the other side, the pyridine nitr

APA, Harvard, Vancouver, ISO, and other styles

12

Xiao, Ming, Qingao Qin, Xin He, Fei Li, and Xiaobo Wang. "Shielding Capability Research on Composite Base Materials in Hybrid Neutron-Gamma Mixed Radiation Fields." Materials 16, no. 5 (2023): 2084. http://dx.doi.org/10.3390/ma16052084.

Full text

Abstract:

The 16N monitoring system operates in a mixed neutron-gamma radiation field and is subject to high background radiation, thus triggering instability in the 16N monitoring system measurement data. Due to its property of actual physical process simulation, the Monte Carlo method was adopted to establish the model of the 16N monitoring system and design a structure-functionally integrated shield to realize neutron-gamma mixed radiation shielding. First, the optimal shielding layer with a thickness of 4 cm was determined in this working environment, which had a significant shielding effect on the

APA, Harvard, Vancouver, ISO, and other styles

13

Kim, Seon-Chil. "Tungsten-Based Hybrid Composite Shield for Medical Radioisotope Defense." Materials 15, no. 4 (2022): 1338. http://dx.doi.org/10.3390/ma15041338.

Full text

Abstract:

The shielding performance of shielding clothing is typically improved by increasing the shielding material content, but this lowers the tensile strength of the material. The weight and wearability of the shielding suit are also adversely affected. Important considerations when developing shielding fabric are thickness and flexibility to allow the wearer sufficient mobility. Insufficient thickness lowers the shielding performance, whereas excessive thickness decreases the flexibility of the garment. This study aimed to develop a composite shield that reproduces the shielding performance and mee

APA, Harvard, Vancouver, ISO, and other styles

14

Kim, Seon-Chil, Jae-Han Yun, Hong-Sik Byun, and Jian Hou. "Verification of Optimal X-Ray Shielding Properties Based on Material Composition and Coating Design of Shielding Materials." Coatings 14, no. 11 (2024): 1450. http://dx.doi.org/10.3390/coatings14111450.

Full text

Abstract:

Health care workers performing radiography on patients in hospitals typically wear aprons for radiation protection. Protective properties are achieved through a combination of shielding materials and polymers. Various shielding materials are mixed with polymers to prepare composite materials. Numerous methods have been devised to design and alter the composition of these materials to improve the shielding performance of aprons. In this study, the shielding performance was analyzed based on the arrangement of shielding materials, the composition of materials (mixed or single), and the fabricati

APA, Harvard, Vancouver, ISO, and other styles

15

Jackowski, Karol, and Marcin Wilczek. "Measurements of Nuclear Magnetic Shielding in Molecules." Molecules 29, no. 11 (2024): 2617. http://dx.doi.org/10.3390/molecules29112617.

Full text

Abstract:

The origin of nuclear magnetic shielding in diamagnetic molecules is discussed, pointing out various contributions to the shielding from electrons and the effects of intra- and intermolecular interactions. In NMR practice, chemical shifts are determined first as the measure of shielding in observed samples. The descriptions of shielding and chemical shifts are not fully consistent. Gas phase studies permit the withdrawal of intermolecular contributions from shielding and obtaining the magnetic shielding data in isolated molecules. The shielding determination in molecules is possible using at l

APA, Harvard, Vancouver, ISO, and other styles

16

Wu, Yin, Yi Cao, Ying Wu, and Dichen Li. "Mechanical Properties and Gamma-Ray Shielding Performance of 3D-Printed Poly-Ether-Ether-Ketone/Tungsten Composites." Materials 13, no. 20 (2020): 4475. http://dx.doi.org/10.3390/ma13204475.

Full text

Abstract:

Nuclear energy provides enduring power to space vehicles, but special attention should be paid to radiation shielding during the development and use of nuclear energy systems. In this paper, novel composite materials containing poly-ether-ether-ketone (PEEK) as a substrate and different tungsten contents as a reinforcing agent were developed and tested as shielding for gamma-ray radiation. Shielding test bodies were quickly processed by fused deposition modeling (FDM) 3D printing, and their mechanical, shielding properties of composite materials were evaluated. The results revealed shielding m

APA, Harvard, Vancouver, ISO, and other styles

17

Jiao, Chaoqun, Yang Xu, Xiang Li, Xiumin Zhang, Zhibin Zhao, and Chengzong Pang. "Electromagnetic Shielding Techniques in the Wireless Power Transfer System for Charging Inspection Robot Application." International Journal of Antennas and Propagation 2021 (July 2, 2021): 1–15. http://dx.doi.org/10.1155/2021/9984595.

Full text

Abstract:

Aiming at eliminating the leakage of magnetic fields from the wireless power transfer (WPT) system, the structural and working characteristics of the WPT system for the inspection robot are analyzed and an electromagnetic shielding method combining passive shielding and active shielding is proposed in this paper. Firstly, we simulated the magnetic field distribution of the WPT system in Maxwell. Secondly, passive shielding is configured in the WPT system, and the material, size, and position of the passive shielding are studied. Then, we add active shielding to areas where passive shielding ca

APA, Harvard, Vancouver, ISO, and other styles

18

Saba, Valiallah, Jalal Kargar Shuraki, Abdollah Valizadeh, Mohsen Zahedinia, and Maziar Barkhordari. "REDUCING ABSORBED DOSE TO THYROID IN NECK CT EXAMINATIONS: THE EFFECTS OF SABA SHIELDING." Radiation Protection Dosimetry 191, no. 3 (2020): 349–60. http://dx.doi.org/10.1093/rpd/ncaa153.

Full text

Abstract:

Abstract Bi shielding has been used for the protection of radiosensitive organs during computed tomography (CT) for 20 years. In 2017, American Association of Physicists in Medicine recommended against Bi shielding due to its degrading effects on image quality. Saba shielding introduced recently protecting organs as Bi shielding without degrading image quality. In this study, the Saba shield was modified and primary radiation attenuation values of the shields and entrance skin dose (ESD) on the thyroid were measured with and without shielding. Furthermore, the quality of images obtained using

APA, Harvard, Vancouver, ISO, and other styles

19

Kim, Seon-Chil. "Medical-Radiation-Shielding Film Fabricated by Imitating the Layered Structure Pattern of Abalone Shell and Verification of Its Shielding Effect." Materials 16, no. 24 (2023): 7700. http://dx.doi.org/10.3390/ma16247700.

Full text

Abstract:

Radiation-shielding clothing for medical workers must be light and thin, thus ensuring flexibility. However, controlling the thickness and weight is limited by shielding performance requirements. This study aims to improve shielding performance by considering a shielding structure that mimics the internal structure of an abalone shell. Two shields were produced: a sheet made with a carrier process using a liquid polymer and tungsten mixture, and a fillet made by compounding the same material and laminated using a heat-treatment press after the injection process. The tungsten content and thickn

APA, Harvard, Vancouver, ISO, and other styles

20

Mayer, Daniel, and Bohuš Ulrych. "Numerical Approach for Computation of Electromagnetic Shielding." Journal of Electrical Engineering 64, no. 4 (2013): 256–60. http://dx.doi.org/10.2478/jee-2013-0037.

Full text

Abstract:

Disturbing magnetic field (so-called magnetic smog) can be in certain areas suppressed by shielding jacket. Disturbing field is possible to be “lead away” from the shielded area with the use of jacket made of materials with high magnetic permeability (so-called passive shielding, or flux-entrapment shielding). If the disturbing field is time-variable, eddy currents are induced into electrically conductive jacket. Magnetic field generated by these eddy currents suppress the disturbing field (this is called active shielding, or lossy magnetic shielding). Both of these principles can be applied a

APA, Harvard, Vancouver, ISO, and other styles

21

Hou, Xin Peng, Shu Feng Li, Yan Chen, Di Xu, and Wei Tang. "Preparation of an Ultra-Thin, Highly Filled, Neutron-Shielding Material." Materials Science Forum 815 (March 2015): 616–21. http://dx.doi.org/10.4028/www.scientific.net/msf.815.616.

Full text

Abstract:

We develop an ultra-thin, highly filled, neutron-shielding material. This material exhibits a desirable neutron-shielding performance, and also has certain advantageous mechanical properties and uses. We study the physical properties of shielding materials with different polyolefins as base materials, and investigate the neutron-shielding performance of boron-containing and lithium-containing shielding materials. We furthermore report on the effect of additive amounts of functional additives on shielding properties and physical-chemical properties. We additionally study the effect of radiation

APA, Harvard, Vancouver, ISO, and other styles

22

Herlemann, H., and M. Koch. "Measurement of the transient shielding effectiveness of shielding cabinets." Advances in Radio Science 6 (May 26, 2008): 293–98. http://dx.doi.org/10.5194/ars-6-293-2008.

Full text

Abstract:

Abstract. Recently, new definitions of shielding effectiveness (SE) for high-frequency and transient electromagnetic fields were introduced by Klinkenbusch (2005). Analytical results were shown for closed as well as for non closed cylindrical shields. In the present work, the shielding performance of different shielding cabinets is investigated by means of numerical simulations and measurements inside a fully anechoic chamber and a GTEM-cell. For the GTEM-cell-measurements, a downscaled model of the shielding cabinet is used. For the simulations, the numerical tools CONCEPT II and COMSOL MULTI

APA, Harvard, Vancouver, ISO, and other styles

23

Xie, Xiaoxuan, and Xiangyang Zhou. "Optimization Design on a High-performance Magnetic Shielding Barrel for Atomic Magnetometer Measurement Application." Journal of Physics: Conference Series 2160, no. 1 (2022): 012033. http://dx.doi.org/10.1088/1742-6596/2160/1/012033.

Full text

Abstract:

Abstract The ultra-high-precision measurement of the atomic magnetometer is largely restricted by the size of its working magnetic field. In order to reduce the residual magnetic field as much as possible, this article carried out the research on the methods to improve the shielding performance. Firstly, the axial shielding factor that limits the shielding performance of the magnetic shielding barrel was derived with various parameters including the radius, length, thickness, number of layers, distance between adjacent layers, etc. of the magnetic shielding barrel. Secondly, simulation was car

APA, Harvard, Vancouver, ISO, and other styles

24

SATOH, Toyoyuki. "Shielding Gases." JOURNAL OF THE JAPAN WELDING SOCIETY 76, no. 1 (2007): 65–67. http://dx.doi.org/10.2207/jjws.76.65.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

SATO, Toyoyuki. "Shielding Gases." JOURNAL OF THE JAPAN WELDING SOCIETY 77, no. 2 (2008): 146–50. http://dx.doi.org/10.2207/jjws.77.146.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Miura, Grant. "Redox shielding." Nature Chemical Biology 11, no. 9 (2015): 632. http://dx.doi.org/10.1038/nchembio.1901.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Williams, Del. "Shielding Lotions." Dimensions of Critical Care Nursing 24, no. 4 (2005): 181–82. http://dx.doi.org/10.1097/00003465-200507000-00008.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Kase, Kenneth R., J. Kenneth Shultis, and Richard E. Faw. "Radiation Shielding." Radiation Research 146, no. 3 (1996): 359. http://dx.doi.org/10.2307/3579473.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Altheide, David L. "Shielding risk." Catalan Journal of Communication & Cultural Studies 5, no. 1 (2013): 97–120. http://dx.doi.org/10.1386/cjcs.5.1.97_7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Eckhardt, Donald H. "Gravitational shielding." Physical Review D 42, no. 6 (1990): 2144–45. http://dx.doi.org/10.1103/physrevd.42.2144.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Liu, Yan Su, and Guo Hua Chen. "Design and Shielding Effectiveness of Electromagnetic Shielding Textiles." Advanced Materials Research 796 (September 2013): 653–56. http://dx.doi.org/10.4028/www.scientific.net/amr.796.653.

Full text

Abstract:

.In order to design better anti-radiation and electromagnetic shielding fabric and the clothing and makes it maintained better of electromagnetic shield effectiveness, the influence of radiation source, radiation distance, anti-electromagnetic radiation material, fabric structure, gap size, holes area, clothing exposed area as well as the tunnel effect and so on the fabric radiation protection performance were comprehensively discussed in this article. As well, according to these influence factor analysis the regular conditions that the electromagnetic shielding fabric and garment design shoul

APA, Harvard, Vancouver, ISO, and other styles

32

Liang, Jian Ping, Zi Lu Zhao, Xiong Feng Zhou, et al. "The influences of shielding gas and quartz tube on discharge properties and reactive species productions of nanosecond pulsed gas–liquid discharge." Journal of Physics D: Applied Physics 55, no. 19 (2022): 195204. http://dx.doi.org/10.1088/1361-6463/ac4fd5.

Full text

Abstract:

Abstract In this paper, shielding gas (He) and shielding quartz tube (straight tube and conical tube) is added to nanosecond pulsed He gas–liquid discharge (G-LD) to limit the air diffusion into plasma, and for the purposes of enhancing the plasma volume and productions of ċOH and H2O2. The plasma properties, including current–voltage waveforms, the temporal-resolved discharge images, optical emission spectra, gas temperature, electron density, and the ċOH and H2O2 productions are analyzed and compared among different discharges generated under the cases of no shielding, shielding He gas, shie

APA, Harvard, Vancouver, ISO, and other styles

33

Miza Osman, Nur, Suffian Mohamad Tajudin, Adila Hanim Aminordin Sabri, Arif Faddilah Mohd Noor, and Mohd Zahri Abdul Aziz. "Evaluation of scattering effects for radiation shielding or filter materials by using Monte Carlo simulation." IOP Conference Series: Materials Science and Engineering 1231, no. 1 (2022): 012007. http://dx.doi.org/10.1088/1757-899x/1231/1/012007.

Full text

Abstract:

Abstract Most radiology departments utilize ordinary concrete and lead for radiation shielding as the primary radiation can be reduced through photon absorption. There are many studies done focusing on the transmitted photons that penetrate the shielding materials for radiation shielding. However, the scattering from the shielding materials would be ignored. When high-energy photons impinge on thick shields, most of the incident energy is absorbed in the shielding materials, but some of it can also be deflected sideways or in a backward direction. This is important as the backscatter radiation

APA, Harvard, Vancouver, ISO, and other styles

34

Li, Yaping, Xiuchen Wang, Zhen Pan, et al. "Analysis of shielding effectiveness in different kinds of electromagnetic shielding fabrics under different test conditions." Textile Research Journal 89, no. 3 (2017): 375–88. http://dx.doi.org/10.1177/0040517517748490.

Full text

Abstract:

This study used the DR-SO4 window method to test the shielding effectiveness of silver-plated fiber functional fabric, copper–nickel duplicate coating fabric, and stainless steel fiber-blended-type fabric. These electromagnetic shielding fabrics exhibited different levels of shielding effectiveness under different polarization directions. In the same frequency, the shielding effectiveness difference between the vertical polarization wave direction and horizontal or 45° polarization wave direction is higher in silver-plated fiber functional fabric and copper–nickel duplicate coating fabric than

APA, Harvard, Vancouver, ISO, and other styles

35

Son, Jun Sik, and Seon-Chil Kim. "Improving the Density of Functional Fabrics to Protect Radiation Workers in Radiology Departments." Coatings 12, no. 8 (2022): 1142. http://dx.doi.org/10.3390/coatings12081142.

Full text

Abstract:

In medical institutions, the high weight of shielding clothing restrains the activities of medical workers. Although lightweight shielding clothing is being manufactured to solve this problem, the weight can only be reduced by 10%–20%. Flexible shielding fibers are mainly used to minimize activity restrictions; however, it is difficult to maintain the reproducibility of shielding performance. When weaving fibers with a yarn that contains a shielding material, the content of the shielding material in the yarn, tensile strength, and problems encountered during weaving should be considered. There

APA, Harvard, Vancouver, ISO, and other styles

36

Berkin, Genco. "Lead free X-ray shielding glass." International Journal of Academic Research 5, no. 5 (2013): 29–34. http://dx.doi.org/10.7813/2075-4124.2013/5-5/a.4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Poursoltan mohammadi, Amir hossein, M. Chehel Amirani, and Faghihi Faghihi. "Comparison of Shielding Effectiveness in Complex Curved Structure with Different Numerical Methods, FDTD, MOM and Equivalent Circuit." Indonesian Journal of Electrical Engineering and Computer Science 12, no. 3 (2018): 1010. http://dx.doi.org/10.11591/ijeecs.v12.i3.pp1010-1019.

Full text

Abstract:

<p>The study of the effect of shielding on high frequency equipment is very important in the electromagnetic compatibility of control and communication equipment. In this paper, while presenting a curved complex structure for the shielding enclosure, the different number of apertures with different dimensions has been investigated. A rectangular structure with two curved parts behind of the enclosure simulated based on numerical methods, FDTD, MOM and equivalent circuit for better analysis of electromagnetic interference. After introducing the proposed structure and presenting the curvat

APA, Harvard, Vancouver, ISO, and other styles

38

Wang, Xiao-Yun, Si-Yuan Liao, Yan-Jun Wan, et al. "Electromagnetic interference shielding materials: recent progress, structure design, and future perspective." Journal of Materials Chemistry C 10, no. 1 (2022): 44–72. http://dx.doi.org/10.1039/d1tc04702g.

Full text

Abstract:

Novel structure design and shielding mechanism of various shielding materials are critically reviewed. Measurement methods of far-field and near-field shielding are presented. Challenges and future perspectives for shielding materials are discussed.

APA, Harvard, Vancouver, ISO, and other styles

39

Liu, Jun Mei. "Influence of Fabric Structure on Shielding Effectiveness of Anti-Electromagnetic Radiation Fabric." Advanced Materials Research 1028 (September 2014): 25–29. http://dx.doi.org/10.4028/www.scientific.net/amr.1028.25.

Full text

Abstract:

In this paper, the standard test method of fabric shielding effectiveness was simply introduced in order to understand systematically the influence of fabric structure of stainless steel fiber on the shielding effectiveness. The different fabrics were woven using of stainless steel monofilament cotton yarn, stainless steel multifilament cotton yarn and stainless steel fiber cotton yarn. Then shielding effectiveness of these fabrics was measured. Results show that spacing between the stainless steel filaments has a great influence on the shielding effectiveness. The shielding effectiveness of f

APA, Harvard, Vancouver, ISO, and other styles

40

Kim, Seon-Chil. "Effect of Polymer Shell Structure of a Gamma-ray Shielding Film Prepared Using Composite Material on Shielding Performance." Coatings 12, no. 12 (2022): 1846. http://dx.doi.org/10.3390/coatings12121846.

Full text

Abstract:

Medical protective clothing should be flexible to ensure free movement of healthcare personnel. This study aimed to investigate the effects of a polymer’s physical properties on the particle composition of a shielding material, constituent component miscibility, and shielding performance. To ensure flexibility by reducing the thickness of the shielding garment, polymer-based composite materials are mainly used as shielding materials. The shielding performance varies depending on whether the polymer used is in an emulsion or powder state. In this study, we found that a shielding film manufactur

APA, Harvard, Vancouver, ISO, and other styles

41

Kim, Seon-Chil. "Development of Density Control Technology for Improving Medical Radiation Shielding Performance of Waste Marble Powder Mixture." Coatings 13, no. 2 (2023): 272. http://dx.doi.org/10.3390/coatings13020272.

Full text

Abstract:

The marble used at construction sites creates a large amount of sludge after processing. Because waste marble has a high calcium oxide content, it is often used as a concrete mix building material. In this study, the use of waste sludge in the fabrication of radiation shields was investigated for medical shielding applications. A shielding sheet was produced by mixing a polymer and waste marble powder. A method for improving the density of the shielding sheet was developed to improve the shielding performance. To improve the density of the shielding sheet using the WMP mixture, the gap between

APA, Harvard, Vancouver, ISO, and other styles

42

De Dios, Angel C., and Cynthia Juan Jameson. "Recent Advances in Theoretical and Physical Aspects of NMR Chemical Shifts." KIMIKA 26, no. 2 (2015): 1–30. http://dx.doi.org/10.26534/kimika.v26i2.1-30.

Full text

Abstract:

In the first part of this review, theoretical aspects of nuclear magnetic shielding include (a) general theory, for example, newly developed approaches in relativistic theory of nuclear shielding, the relation between the spin-rotation tensor and shielding in relativistic theory, ab initio methods for treating open shell systems and a complete theory of chemical shifts in paramagnetic systems, the link between the definitions of the elusive concepts aromaticity and anti-aromaticity and the magnetic properties: the magnetizability tensor and the nuclear magnetic shielding tensor via delocalized

APA, Harvard, Vancouver, ISO, and other styles

43

Li, Yan, and Wen Bin Zhang. "Research on Structure Design and Performance Test of Electromagnetic Shielding Clothes." Advanced Materials Research 383-390 (November 2011): 6508–13. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.6508.

Full text

Abstract:

Based on the theory analysis of electromagnetic shielding mechanism and structure design, a woven fabric with stainless steel core-spun yarns is selected. Several sets of shielding clothes with variable structure parameters are designed and manufactured through orthogonal experiment method. An experimental platform has been set up to measure the shielding efficiency of the shielding clothes in key parts. With direct and variance analysis identify the significant structure parameters which influence the shielding performance, so as to provide a theory basis for the optimization structure design

APA, Harvard, Vancouver, ISO, and other styles

44

Kim, Seon-Chil. "Development of a Lightweight Tungsten Shielding Fiber That Can Be Used for Improving the Performance of Medical Radiation Shields." Applied Sciences 11, no. 14 (2021): 6475. http://dx.doi.org/10.3390/app11146475.

Full text

Abstract:

Radiation exposure in medical institutions is mainly due to low doses. Low-dose radiation mainly means scattered radiation, and such scattered radiation can be shielded with a lightweight shielding suit. In this study, the shielding performance of shielding fabrics woven by winding polyethylene (PE) yarn around a 30 μm tungsten wire was evaluated. To improve the shielding performance, an air pressure dispersion process of coating tungsten nanopowder on the fiber was developed. The radiation shielding effectiveness of the shielding fibers with and without dispersed tungsten nanopowder were comp

APA, Harvard, Vancouver, ISO, and other styles

45

Assis Oliveira, Leonardo Bruno, Tertius L. Fonseca, and Benedito J. C. Cabral. "15N NMR Shifts of Eumelanin Building Blocks in Water: A Combined Quantum Mechanics/Statistical Mechanics Approach." Molecules 25, no. 16 (2020): 3616. http://dx.doi.org/10.3390/molecules25163616.

Full text

Abstract:

Theoretical results for the magnetic shielding of protonated and unprotonated nitrogens of eumelanin building blocks including monomers, dimers, and tetramers in gas phase and water are presented. The magnetic property in water was determined by carrying out Monte Carlo statistical mechanics sampling combined with quantum mechanics calculations based on the gauge-including atomic orbitals approach. The results show that the environment polarization can have a marked effect on nitrogen magnetic shieldings, especially for the unprotonated nitrogens. Large contrasts of the oligomerization effect

APA, Harvard, Vancouver, ISO, and other styles

46

Papanikolaou, Dimitris. "Study of HPGe detector shielding for use in inelastic neutron scattering experiments at the n_TOF/CERN facility." HNPS Advances in Nuclear Physics 29 (May 5, 2023): 187–90. http://dx.doi.org/10.12681/hnpsanp.5153.

Full text

Abstract:

The study of inelastic scattering reactions is important both in basic research as it can provide an insight on nuclear structure and aid in the validation of theoretical models, as well as in the field of applications. The most frequently used method to determine the neutron induced inelastic scattering cross section is by recording the emitted gamma rays from the de-excitation of the target nucleus. In this direction, the high energy resolution of the HPGe detectors is instrumental. The experimental setup can be further improved by shielding the HPGe against the scattered neutrons. The purpo

APA, Harvard, Vancouver, ISO, and other styles

47

Zhang, Hong, Sheng Zou, Xi-Yuan Chen, and Wei Quan. "Parameter Modeling Analysis and Experimental Verification on Magnetic Shielding Cylinder of All-Optical Atomic Spin Magnetometer." Journal of Sensors 2015 (2015): 1–7. http://dx.doi.org/10.1155/2015/491746.

Full text

Abstract:

The ultrahigh sensitivity atomic spin magnetometer as the magnetic measurement sensor has received much concern. The performance of the magnetic shielding cylinder is one of the key factors constraining the atomic spin magnetometer’s sensitivity. In order to effectively improve the performances of the magnetic shielding, the parameter optimization models of the magnetic shielding cylinder were established in this paper. Under the condition of changing only one parameter while the others keeping constant, the effects of various parameters influencing the axial shielding coefficient were compreh

APA, Harvard, Vancouver, ISO, and other styles

48

Kim, Seon-Chil, and Sung-Hyoun Cho. "Analysis of the Correlation between Shielding Material Blending Characteristics and Porosity for Radiation Shielding Films." Applied Sciences 9, no. 9 (2019): 1765. http://dx.doi.org/10.3390/app9091765.

Full text

Abstract:

The most important factors in the manufacture of shielded sheets are shielding ratio, light weight, and tensile strength. The base material should provide a light-shielding film with strong physical shock resistance, while maintaining the shielding ratio of lead. Therefore, we studied the correlation between the porosity during the mixing process and the maintenance of the shielding film characteristics. Changes in the shielding ratio can be predicted according to the properties of materials such as polymeric silicon and tungsten oxide. Further, their tensile strength and porosity may change d

APA, Harvard, Vancouver, ISO, and other styles

49

Wirapraja, Agung Yanuar, Handaru Bowo Cahyono, and Mohamad Marhaendra Ali. "Shielding Elektromagnetik Tembaga dari Proses Elektrolisis Air Limbah Industri Printed Circuit Board." Jurnal Teknologi Bahan dan Barang Teknik 10, no. 1 (2020): 9. http://dx.doi.org/10.37209/jtbbt.v10i1.162.

Full text

Abstract:

Some electronic products have high electromagnetic interference so that it gives a negative impact on the electronic devices around it. The use of electromagnetic shielding is a solution to reduce the value of electromagnetic radiation interference from electronic products. The research conducted includes the manufacture of electromagnetic shielding from copper material resulting from the electrolysis process of PCB (Printed Circuit Board) industrial wastewater and analyzing the effect of electromagnetic shielding from copper waste on the value of radiation emission. Electromagnetic shielding

APA, Harvard, Vancouver, ISO, and other styles

50

Jiang, Yu Ze, Zhen Guang Liang, Wei Jie Ma, and Hong Chuan Wang. "Effect of Shielding Lines on Power Frequency Electric Field under Overhead Lines." Advanced Materials Research 732-733 (August 2013): 999–1004. http://dx.doi.org/10.4028/www.scientific.net/amr.732-733.999.

Full text

Abstract:

This paper discusses effect of shielding lines on reduction of electric field produced by overhead lines. Charge simulation method is used. Influences of height, space and number of shielding lines on electric field are calculated. Space between shielding lines has reverse roles on influencing area and maximal electric field. Number and space of shielding lines should be carefully selected to shielding a certain area. Analytical method is also used to express induced electric field by shielding lines. Result of comparison with charge simulation method shows that it is suitable for area outside

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!